<RECORD 1>
Accession number:20102012932352
Title:Physiological characteristics of leaf growth and yield of cucumber under different watering and fertilizer coupling treatments in greenhouse
Authors:Wei, Zexiu (1); Liang, Yinli (1); Zhou, Maojuan (1); Huang, Maolin (1); He, Lina (1); Gao, Jing (1); Wu, Yan (1)
Author affiliation:(1) College of Resource and Environment, Northwest Agriculture and Forestry University, Yangling 712100, China; (2) Institute of Water and Soil Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, China; (3) Tibet Agriculture Research Institute, Lhasa 850032, China
Corresponding author:Liang, Y.
      (liangyl@ms.iswc.ac.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:69-74
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Physiological characteristics of cucumber leaves and yield under different watering and fertilizer coupling treatments were determined with completely random experiment setup in greenhouse on Loess Plateau. The results showed that in all treatments leaf area became bigger, and those parameters such as leaf expansion speed (LES), leaf water level, the amount of free proline (PRO), malondialdehyde (MDA), yield and water use efficiency (WUE) were increased initially and then decreased at the fruit-bearing stage. When soil water content was at the same level, leaf area, leaf water level, WUE and yield were greater in the high fertilization treatment Fh (600 kg/hm² N and 420 kg/hm² P<inf>2</inf>O<inf>5</inf>) than in low fertilization treatment Fl (420 kg/hm² N and 294 kg/hm² P<inf>2</inf>O<inf>5</inf>). The yield was enhanced with soil water content increasing at low fertilization level; while at high fertilization level, the output rose and then declined with soil water content increasing. And the WUE in the two fertilization levels decreased with the soil water content increasing. The net photosynthetic (P<inf>n</inf>) rate and transpiration (T<inf>r</inf>) of the cucumber leaves in the treatment of WmFh (&gt;75%-90% soil water content, 600 kg/hm² N and 420 kg/hm² P<inf>2</inf>O<inf>5</inf>) were significantly greater than in other treatments, indicating that the water and fertilizer supply could meet the cucumber needs, making leaves grow vigorously and photosynthesis capability stronger, and attain high yield and save the water resource.
Number of references:19
Main heading:Water content
Controlled terms:Aldehydes - Biochemical oxygen demand - Couplings - Fertilizers - Greenhouses - Moisture determination - Plants (botany) - Soil moisture - Underwater soils - Water levels  - Water resources - Water supply
Uncontrolled terms:Coupling treatment - Free proline - High yield - Leaf area - Leaf expansion - Leaf growth - Leaf water - Loess Plateau - Malondialdehyde - Physiological characteristics  - Soil water content - Water-use efficiency
Classification code:602 Mechanical Drives and Transmissions - 614.2 Steam Power Plant Equipment and Operation - 804 Chemical Products Generally - 483.1 Soils and Soil Mechanics - 804.1 Organic Compounds - 821.6 Farm Buildings and Other Structures - 944.2 Moisture Measurements - 821.2 Agricultural Chemicals - 471.1 Oceanography, General - 407.2 Waterways - 444 Water Resources - 446.1 Water Supply Systems - 402.1 Industrial and Agricultural Buildings - 452.2 Sewage Treatment - 453 Water Pollution - 461.9 Biology - 452.4 Industrial Wastes Treatment and Disposal
DOI:10.3969/j.issn.1002-6819.2010.03.012
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 2>
Accession number:20102012932384
Title:Shortcut nitrification characteristics for swine wastewater treatment at normal temperature
Authors:Yan, Lilong (1); Zhang, Ying (1); Li, Jing (1); Yang, Yang (1); Li, Chuanju (1)
Author affiliation:(1) School of Resource and Environment, Northeast Agricultural University, Harbin 150030, China
Corresponding author:Zhang, Y.
      (zhangyhrb@neau.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:262-266
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:In order to evaluate the effect of temperature, ammonia concentration and aeration time on nitrification characteristics of swine wastewater, Sequencing Batch Reactor Activated Sludge Process (SBR) was adopted to treat the swine wastewater with high ammonia nitrogen concentration in the non-limiting dissolved oxygen conditions. The results demonstrated that SBR technology could effectively remove ammonia nitrogen in swine wastewater, shortcut nitrification occurred during the whole experimental process. When the ammonia nitrogen concentration in the influence was less than 250 mg/L, the ammonia concentration and temperature (even when the temperature was at 15&deg;C) had little effect on ammonia nitrogen removal and nitrite accumulation rate (both were about 80%). Prolonged aeration did not affect shortcut nitrification; nitrite accumulation resulted from co-inhibition of free ammonia (FA) and free nitrite (FNA) during biological treatment for high concentration of ammonia-nitrogen wastewater.
Number of references:16
Main heading:Wastewater treatment
Controlled terms:Activated sludge process - Ammonia - Batch reactors - Biochemical engineering - Biochemical oxygen demand - Biological water treatment - Concentration (process) - Denitrification - Dissolution - Dissolved oxygen  - Nitration - Nitrification - Nitrogen - Nitrogen removal - Oxidation - Temperature - Wastewater - Wastewater reclamation - Water recycling
Uncontrolled terms:Ammonia concentrations - Ammonia nitrogen - Ammonia nitrogen removal - Biological treatment - Effect of temperature - Free ammonia - High concentration - Nitrite accumulation - Normal temperature effects - SBR  - Sequencing batch reactors - Shortcut nitrification - Swine wastewater - Temperature effects
Classification code:513.1 Petroleum Refining, General - 641.1 Thermodynamics - 801.2 Biochemistry - 802.1 Chemical Plants and Equipment - 461.9 Biology - 802.2 Chemical Reactions - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 805.1.1 Biochemical Engineering - 802.3 Chemical Operations - 461.7 Health Care - 445 Water Treatment - 445.1 Water Treatment Techniques - 452.2 Sewage Treatment - 452.3 Industrial Wastes - 444 Water Resources - 452.4 Industrial Wastes Treatment and Disposal - 453.2 Water Pollution Control - 454.2 Environmental Impact and Protection - 454.3 Ecology and Ecosystems - 453 Water Pollution
DOI:10.3969/j.issn.1002-6819.2010.03.044
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 3>
Accession number:20102012932395
Title:Spatial distribution of land consolidation projects and correlation between them and economic development in Chongqing City
Authors:Yang, Qingyuan (1); Feng, Yingbin (1); Yang, Huajun (2); Dong, Shilin (3); Xin, Guixin (1); Sun, Xiaoqun (1)
Author affiliation:(1) School of Geographical Science, Southwest University, Chongqing 400715, China; (2) Department of Resource and Environment, Southwest University, Chongqing 400715, China; (3) The State Land Resources and Real Estate Association of Chongqing, Chongqing 400415, China
Corresponding author:Yang, Q.
      (yizyang@swu.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:323-331
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:This paper approached the correlating mechanism between economic development and land consolidation projects based on the system analysis of the land consolidation project implementations and the spatial differentiation in Chongqing City. Results indicated that according to the different newly increased cultivated land rate, land consolidation projects on the district or county level could be divided into four categories: land consolidation, cland consolidation and exploitation, land development and consolidation, land development. While according to the investment per unit area on newly increased cultivated land, it could also be divided into four categories: high investment, reasonable investment, partial low investment and low investment. Correlating curve type among the investment per unit area in newly increased cultivated land, average annual growth rate of GDP and average annual growth rate of per capita GDP was a compound one. Correlations among newly increased cultivated land investment per unit area and annual growth rate of per capita GDP, annual growth rate of per capita GDP and other economic development indexes showed an 'S' changing tendency curve. The construction standards of the land consolidation projects on district or county level investment were not well linked with its economic development, and the growth speed of the investment quantity on newly increased cultivated land was reduced. The implementation scale of land consolidation project on agricultural land and basic farmland was increased while the investment on newly increased cultivated land was reduced. This paper studies the correlating rule between the development of Chongqing economic and the land consolidation for enhanced and sustainable development of Chongqing land consolidation theory.
Number of references:15
Main heading:Investments
Controlled terms:Cultivation - Economic analysis - Land use - Size distribution - Standardization - Strategic planning
Uncontrolled terms:Agricultural land - Annual growth rate - Average annual growth rates - Chongqing - Consolidation projects - Consolidation theory - Construction standards - County level - Cultivated lands - Curve types  - Economic development - Growth speed - Land consolidation projects - Land development - Per capita - Per unit - Spatial differentiation - Spatial distribution - System analysis
Classification code:933.1 Crystalline Solids - 931.2 Physical Properties of Gases, Liquids and Solids - 922.2 Mathematical Statistics - 912.2 Management - 911.2 Industrial Economics - 902.2 Codes and Standards - 821.3 Agricultural Methods - 531.2 Metallography - 442.2 Land Reclamation - 423 Non Mechanical Properties and Tests of Building Materials - 403 Urban and Regional Planning and Development
DOI:10.3969/j.issn.1002-6819.2010.03.055
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 4>
Accession number:20102012932391
Title:Analysis of the standards for biodiesel property and suggestion on establishing and improving its standard system
Authors:Zhang, Chunhua (1); Wu, Zhanwen (2); Bian, Yaozhang (1); Jian, Xiaoping (1)
Author affiliation:(1) School of Automobile, Chang'an University, Xi'an 710064, China; (2) Department of Basic Courses, Armed Police Engineering College, Xi'an 710086, China
Corresponding author:Zhang, C.
      (zchzzz@126.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:298-303
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Because Chinese biodiesel standards are not perfect, this paper carries out the following work: analysis of biodiesel properties; analysis of main international biodiesel standards; comparison and analysis of GB/T 20828-2007 of China, EN 14214-2005 of European Union, DIN V 51606 of German and ASTM D 6751-03 of USA; putting forward the suggestions for biodiesel standards series, which are to improve and perfect standards of biodiesel fuel, to set up standards for biodiesel-diesel blends, for production of biodiesel fuel and properties improvement additives, and for biodiesel applications.
Number of references:22
Main heading:Biodiesel
Controlled terms:Fuel additives - Standards - Synthetic fuels
Uncontrolled terms:Bio-diesel fuel - Biodiesel properties - Diesel - Diesel properties - EN 14214 - European Union - Properties - Standard system
Classification code:522 Gas Fuels - 523 Liquid Fuels - 524 Solid Fuels - 803 Chemical Agents and Basic Industrial Chemicals - 902.2 Codes and Standards
DOI:10.3969/j.issn.1002-6819.2010.03.051
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 5>
Accession number:20102012932377
Title:Detection of embryo based on independent components for kernel RGB images in maize
Authors:Han, Zhongzhi (1); Zhao, Yougang (2); Yang, Jinzhong (1)
Author affiliation:(1) Digital Agriculture Research Center, Qingdao Agricultural University, Qingdao 266109, China; (2) College of Information Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China; (3) Agronomy and Plant Protection College, Qingdao Agricultural University, Qingdao 266109, China
Corresponding author:Yang, J.
      (jzyang@qau.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:222-226
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:The characteristics of maize embryo are important agronomic traits of maize, which are mainly measured by hand. In order to implement automatic extraction of the features of maize embryo by computer vision and image processing method, a new method for measuring embryo based on independent component analysis (ICA) was developed, and its testing model was also established. RGB images of 40 maize kernels were scanned with 600 DPI resolutions using a flat scanner. After segmenting embryo part from other parts of maize kernels using the independent component with the maximum entropy, the embryo area and the other 8 embryo characteristics of these maize kernels were extracted. Compared with the manual measured results as ground-truth reference, the area error rate for our proposed method was 0.7%, and determination coefficient of the manual regression to the predicted reached 0.984, and error rates of other 8 characteristics were generally below 2%. When compared with citations of those based on the region growing of color models, our proposed method significantly increased detection accuracy. Obviously, the proposed method based on ICA is accurate and reliable, and can be used to automatic detection of maize embryo.
Number of references:15
Main heading:Independent component analysis
Controlled terms:Computer testing - Computer vision - Crops - Feature extraction - Hemodynamics - Imaging systems - Multivariant analysis - Processing
Uncontrolled terms:Agronomic traits - Automatic Detection - Automatic extraction - Characteristics of maize embryo - Color models - Detection accuracy - Determination coefficients - Error rate - Flat scanners - Image processing - methods  - Independent components - Maize (Zea mays L.) - Maize kernels - Maximum entropy - Measured results - Region growing - RGB images - Testing models
Classification code:741 Light, Optics and Optical Devices - 741.1 Light/Optics - 741.2 Vision - 922 Statistical Methods - 746 Imaging Techniques - 821.4 Agricultural Products - 913.4 Manufacturing - 751.1 Acoustic Waves - 731.6 Robot Applications - 723.5 Computer Applications - 461.1 Biomedical Engineering - 631.1 Fluid Flow, General - 716 Telecommunication; Radar, Radio and Television - 722 Computer Systems and Equipment - 723.2 Data Processing and Image Processing - 723.4 Artificial Intelligence
DOI:10.3969/j.issn.1002-6819.2010.03.037
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 6>
Accession number:20102012932341
Title:Development and technology requirement of China rural water conservancy
Authors:Ni, Wenjin (1)
Author affiliation:(1) China Irrigation and Drainage Development Center, Beijing 100044, China
Corresponding author:Ni, W.
      (wenjinni@mwr.gov.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:1-8
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:The main elements of the rural water conservancy are irrigation and drainage engineering, and rural water supply. The current work of rural water conservancy includes three main objectives, such as reinforce of dangerous reservoirs, safety of rural drinking water, and reform of water-saving irrigation for irrigation regions, which includes reform of water-saving irrigation for large and middle scaled irrigation regions, reform of large scaled pump stations for irrigation and drainage systems, construction of small scaled agricultural water conservancy projects, and water-saving irrigation etc. Progress of above situation was analyzed in this paper, which also included overview of rural water technology development, such as research progress of water-saving irrigation techniques, rural drinking water technology and their integration, and the rapid evaluation and software development of the modern irrigation region management, water resource management technology which based on crop evapotranspiration. After discussing the technology requirement and key areas of rural water conservancy, the author thinks that we should increase joint research, accelerate the transformation and promotion of research fruits, pay attention to the relationship between inputs and outputs. Suggestions for extension service of rural water conservancy should be focused on the increase of farmers' income and the improvement of their living conditions, increase the guidance, support of rural water-related key enterprises, accelerate the transformation of scientific and technological achievements, give full play to enterprises in the important role of technology promotion.
Number of references:37
Main heading:Potable water
Controlled terms:Drainage - Irrigation - Project management - Research - Research and development management - Reservoirs (water) - Safety engineering - Software design - Technological forecasting - Technology  - Water conservation - Water content - Water management - Water supply
Uncontrolled terms:Agricultural water - Crop evapotranspiration - Development and technology - Drainage engineering - Drainage systems - Drinking water - Irrigation management - Living conditions - Pump station - Research progress  - Rural water supply - Software development - Water conservancy - Water technologies - Water-saving irrigation - Waterresource management
Classification code:723.5 Computer Applications - 821.3 Agricultural Methods - 901 Engineering Profession - 723.1 Computer Programming - 901.3 Engineering Research - 912.2 Management - 914 Safety Engineering - 901.4 Impact of Technology on Society - 502 Mines and Quarry Equipment and Operations - 403.1 Urban Planning and Development - 406 Highway Engineering - 441.2 Reservoirs - 401 Bridges and Tunnels - 442 Flood Control; Land Reclamation - 446 Waterworks - 446.1 Water Supply Systems - 444 Water Resources
DOI:10.3969/j.issn.1002-6819.2010.03.001
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 7>
Accession number:20102012932374
Title:Design of system for monitoring dairy cattle's behavioral features based on wireless sensor networks
Authors:Yin, Ling (1); Liu, Caixing (1); Hong, Tiansheng (2); Zhou, Haoen (1); Kwong, Kae Hsiang (3)
Author affiliation:(1) College of Informatics, South China Agriculture University, Guangzhou 510642, China; (2) College of Engineering, South China Agriculture University, Guangzhou 510642, China; (3) Centre for Intelligent Dynamic Communications, Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow G1 1XQ, United Kingdom
Corresponding author:Hong, T.
      (tshong@scau.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:203-208
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Nowadays estimation of disease and estrus conditions for large animals such as cattle mainly relies on farmer's visual judgment. This practice by manual observation had an obvious fundamental restriction, which a large number of experienced farmers were required. Therefore, it was not cost-effective to be adopted in large scale and intensive breeding. This approach also inclined to have unreliable detection rate due to human errors. In order to recognize estrus or diseases of cattle automatically and accurately, this paper presented a monitoring system based on wireless sensor node installed on a cattle's neck. Body temperature, respiratory rate, movement acceleration and other parameters of the cattle could be easily captured through a variety of sensors on the node. The collected data were sorted out and classified into different classes according to the behavioral features extracted by using the K-means clustering algorithm. This process enabled an empirical detection model to be developed which could then be applied routinely to predict estrus or diseases. Experimental results showed that the monitoring models could effectively distinguish behaviors such as standing, walking, mounting etc., and estrus or diseases could be observed accurately based on these unique features. This methodology in behavioral modeling could be adapted in monitoring other animals and holds great importance for development of other stockbreeding.
Number of references:15
Main heading:Clustering algorithms
Controlled terms:Accelerometers - Agriculture - Animals - Behavioral research - Dairies - Electric network synthesis - Errors - Monitoring - Sensor networks - Sensor nodes  - Telecommunication equipment - Water supply systems - Wireless sensor networks
Uncontrolled terms:Behavioral features - Behavioral modeling - Body temperature - Cattle - Dairy cattles - Detection models - Detection rates - Human errors - K-Means clustering algorithm - Monitoring models  - Monitoring system - Respiratory rate - Unique features - Wireless sensor node
Classification code:822.1 Food Products Plants and Equipment - 822 Food Technology - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 814 Leather and Tanning - 732 Control Devices - 731.1 Control Systems - 971 Social Sciences - 903.1 Information Sources and Analysis - 944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments - 943.1 Mechanical Instruments - 943 Mechanical and Miscellaneous Measuring Instruments - 942 Electric and Electronic Measuring Instruments - 941 Acoustical and Optical Measuring Instruments - 922.2 Mathematical Statistics - 921 Mathematics - 731 Automatic Control Principles and Applications - 722.4 Digital Computers and Systems - 703.1.2 Electric Network Synthesis - 471 Marine Science and Oceanography - 461.4 Ergonomics and Human Factors Engineering - 461 Bioengineering and Biology - 446.1 Water Supply Systems - 402.1 Industrial and Agricultural Buildings - 716 Telecommunication; Radar, Radio and Television - 717 Optical Communication - 718 Telephone Systems and Related Technologies; Line Communications - 721 Computer Circuits and Logic Elements - 722 Computer Systems and Equipment - 722.3 Data Communication, Equipment and Techniques - 716.3 Radio Systems and Equipment
DOI:10.3969/j.issn.1002-6819.2010.03.034
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 8>
Accession number:20102012932404
Title:Technology simulation of multistage adverse current extraction by two-liquid-phase system for flaxseed
Authors:Li, Gaoyang (1); Ding, Xiaolin (1)
Author affiliation:(1) School of Food Science and Technology, Jiangnan University, Wuxi 214036, China; (2) Institute of Hunan Agricultural Product Processing, Changsha 410125, China
Corresponding author:Li, G.
      (lgy7102@yahoo.com.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:380-384
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:In order to investigate industrialized results of extracting flaxseed by two-liquid-phase technology, the feasibiltity of multistage adverse current extraction technology in oils and cyanogenic glycosides extracted simultaneously from flaxseed by two-liquid-phase system of ethanol-hexane-water was discussed using model experiment. The optimum extracting conditions are ethanol 85% (m/m), material:ethanol=1:2 (m/V), material:hexane=1:5 (m/V), time 30 min, temperature 55&deg;C, NaOH concentration 0.05% (m/V) in ethanol. Serial simulation of four stages adverse current extraction decreased concentration of oils and cyanogenic glycosides in flaxseed flakes to less than 1% and 0.7 mg/kg, respectively. Flow diagram for multistage adverse current extraction is fit for process of flaxseed oils and cyanogenic glycosides extracted by two-liquid-phase system.
Number of references:16
Main heading:Solvent extraction
Controlled terms:Computer crime - Cyanides - Ethanol - Flax - Hexane - Liquids - Sugars - Technology
Uncontrolled terms:Adverse currents - Concentration of - Cyanogenic glycosides - Flaxseed oil - Flow diagram - Model experiments - NaOH concentration - Two-liquid-phase - Two-liquid-phase systems
Classification code:931.2 Physical Properties of Gases, Liquids and Solids - 902.3 Legal Aspects - 901 Engineering Profession - 819.1 Natural Fibers - 804.2 Inorganic Compounds - 804.1 Organic Compounds - 802.3 Chemical Operations - 723 Computer Software, Data Handling and Applications - 523 Liquid Fuels
DOI:10.3969/j.issn.1002-6819.2010.03.064
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 9>
Accession number:20102012932400
Title:Disinfection effect of neutral electrolyzed water for shell egg washing
Authors:Zhu, Zhiwei (1); Li, Baoming (2); Li, Yongyu (3); Shang, Yuchao (2); Wang, Chaoyuan (2); Cao, Wei (2)
Author affiliation:(1) School of Environment and Energy Engineering, Anhui University of Architecture, Hefei 230601, China; (2) Key Laboratory of Structure and Environment in Agricultural Engineering, China Agricultural University, Beijing 100083, China; (3) College of Engineering, China Agricultural University, Beijing 100083, China
Corresponding author:Cao, W.
      (caowei@cau.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:358-362
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:For the sake of developing an effective, safe and no pollution disinfectant to reduce or eliminate food-borne pathogens on shell eggs, the bactericidal activity of neutral electrolyzed water (NEW, pH 6.0-7.5) generated by electrolysis of diluted hydrochloric acid in a non-membrane electrolytic cell for inactivation of Salmonella pullorum, Escherichia coli O157:H7 and artificial inoculated shell eggs (initial logarithm of population of two pathogens on the eggs were approximately 6.19-6.26 log10 (cfu/g) and 6.12-6.19 log<inf>10</inf> (cfu/g) respectively) was evaluated. The bactericidal activity of NEW for both of pathogens increased with increasing the available chlorine concentration and treatment time. A 100% inactivation of S. pullorum (initial logarithm of population of pathogen 8.12 log<inf>10</inf> (cfu/mL)) and E. coli O157:H7 (initial logarithm of population of pathogen 7.78 log<inf>10</inf> (cfu/mL)) was resulted in NEW with available chlorine more than 1.5 and 2 mg/L for 3 min at 20&deg;C, respectively. Temperature had no markedly effect on the bactericidal activity of neutral electrolyzed water. The S. pullorum on the surface of shell eggs was completely killed and E. coli O157:H7 logarithm of counts decreased to less than 1.0 log<inf>10</inf> (cfu/g) by NEW containing 12 mg/L available chlorine for 3 min without viable cells in the washing water after treatment. Results indicate that NEW has a great potential to be used as effective disinfectant agent for egg washing.
Number of references:18
Main heading:Pathogens
Controlled terms:Algebra - Bactericides - Chemicals removal (water treatment) - Chlorine - Disinfectants - Disinfection - Electrochemistry - Electrolysis - Electrolytic cells - Escherichia coli  - Hydrochloric acid - Shells (structures) - Washing - Water pollution - Water recycling
Uncontrolled terms:After-treatment - Bactericidal activity - Chlorine concentration - E.coli O157:H7 - Electrolyzed water - Escherichia coli O157:H7 - Food-borne pathogens - Neutral electrolyzed water - Shell eggs - Treatment time  - Viable cells - Washing water
Classification code:801.4.1 Electrochemistry - 802.1 Chemical Plants and Equipment - 802.2 Chemical Reactions - 802.3 Chemical Operations - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 811.1.1 Papermaking Processes - 819.5 Textile Products and Processing - 822.2 Food Processing Operations - 921.1 Algebra - 801.2 Biochemistry - 408.2 Structural Members and Shapes - 444 Water Resources - 445.1 Water Treatment Techniques - 452.3 Industrial Wastes - 453 Water Pollution - 453.2 Water Pollution Control - 461.6 Medicine and Pharmacology - 461.9 Biology - 462 Biomedical Equipment - 503.2 Coal Mining Operations - 702 Electric Batteries and Fuel Cells
DOI:10.3969/j.issn.1002-6819.2010.03.060
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 10>
Accession number:20102012932370
Title:Development of a visible-infrared photoelectric instrument for measuring crop nitrogen
Authors:Zheng, Wen'gang (1); Sun, Gang (1); Shen, Changjun (1); Huang, Wenjiang (1); Zhou, Jianjun (1)
Author affiliation:(1) National Engineering Research Center for Information Technology in Agriculture, Beijing 100097, China
Corresponding author:Zheng, W.
      (zhengwg@nercita.org.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:178-182
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:For solving the problem of non-destructive testing method for crop nutrition, a non-contact photoelectric instrument was designed. The instrument could measure the crop nitrogen according to the visible-near infrared spectral characteristics of the nitrogen. Through measuring the two-way incident light and the reflected light, the instrument could measure the vegetation index accurately according to the automatic calibration techniques based on the least squares estimation. By using the signal processing method, the problem caused by the weak signal and the sun angle was solved. This instrument measured the vegetation index conveniently, and the results had a very good correlation with the values measured by spectrometer, and the coefficients of determination were 0.994 and 0.985, respectively. The wheat experiments indicated that instrument could be used for non-destructive measuring the crop nitrogen. The instrument had the characters of low power consumption, high sensitivity and rapid response time. The crop nutrient measured by the instrument could be used for variable rate fertilization.
Number of references:14
Main heading:Vegetation
Controlled terms:Crops - Instrument testing - Instruments - Nitrogen - Nondestructive examination - Optimization - Photoelectric devices - Photoelectricity - Sensors - Signal processing  - Soil surveys - Soils
Uncontrolled terms:Non-contact measurement - Noncontact measurements - Vegetation index
Classification code:944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 801 Chemistry - 804 Chemical Products Generally - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 821.4 Agricultural Products - 921.5 Optimization Techniques - 941 Acoustical and Optical Measuring Instruments - 942 Electric and Electronic Measuring Instruments - 943 Mechanical and Miscellaneous Measuring Instruments - 732.2 Control Instrumentation - 406.2 Roads and Streets - 421 Strength of Building Materials; Mechanical Properties - 422.2 Test Methods - 423.2 Test Methods - 716.1 Information Theory and Signal Processing - 461.9 Biology - 525.1 Energy Resources and Renewable Energy Issues - 701.1 Electricity: Basic Concepts and Phenomena - 714.2 Semiconductor Devices and Integrated Circuits - 483.1 Soils and Soil Mechanics
DOI:10.3969/j.issn.1002-6819.2010.03.030
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 11>
Accession number:20102012932366
Title:Relationship between lodging and mechanical characteristics of winter wheat stem under different yield levels
Authors:Guo, Cuihua (1); Gao, Zhiqiang (1); Miao, Guoyuan (1)
Author affiliation:(1) College of Agriculture, Shanxi Agricultural University, Taigu 030801, China
Corresponding author:Gao, Z.
      (gaozhiqiang1964@126.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:151-155
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Understanding the relationship between the structure of the base node and mechanics of lodging resistance would be helpful to solve the contradiction of high-yield and lodging. In order to identify the relationship between the yield and lodging, the biomechanical properties (such as kink force of inertia, cross sectional moment of inertia, young modulus bending rigidity and bending strength) of basal second internodes and morphological traits were measured with the SANS-CMT6104 multifunctional testing machine controlled by computer, in 21 wheat fields, which have different yield levels in late-maturing winter wheat area in Jinzhong, Shanxi Province. The results showed that under the different production levels, with the excessive increase of the basic seeding number and the peak number of tiller in jointing stage, the lodging rate of groups was greater, lodging time was earlier, the grain number per spike and the weight of 1 000 grain were reduced significantly in particularly, the yield was decreased. Moreover, it showed that wheat production in the area was constrained by natural conditions and plant system. The reasonable basic seeding amount and the highest number of the tiller after regreen stage determined by the appropriate irrigation and fertilizer regulation were two important critical values of wheat groups with relations to high-yield and no lodging. The relationship between lodging and the morphology of base second internodes was defined. All the biomechanical indictors were negatively related to the indexes of wheat stem such as plant height and spacing bending section, while positively to dry weight, diameter and wall thickness of stem. With the excess increase of basic seeding amount, the number of highest tiller in joint stage was increased, and mechanics load of basal stem was decreased, which led to lodging. Two biomechanical properties including bending strength and elasticity modulus, which were close to lodging resistance of internodes, quality of population, morphosis of plant and yield structure, were screened out, and were regarded as reference indexes for lodging resistance or plant type breeding and high yielding population framework designed.
Number of references:22
Main heading:Mechanical properties
Controlled terms:Bending strength - Biomechanics - Computer control systems - Computer testing - Crops - Grain (agricultural product) - Mechanical engineering - Mechanical testing - Seed
Uncontrolled terms:Basal stems - Base nodes - Bending rigidity - Biomechanical properties - Critical value - Dry weight - Elasticity moduli - Fertilizer regulation - Grain numbers - Lodging  - Lodging resistance - Mechanical characteristics - Moment of inertia - Morphological traits - Natural conditions - Plant height - Plant systems - Plant types - Production level - Testing machine  - Wall thickness - Wheat fields - Wheat production - Wheat stems - Wheat yield - Winter wheat - Young modulus
Classification code:951 Materials Science - 943.2 Mechanical Variables Measurements - 931.1 Mechanics - 821.4 Agricultural Products - 731.1 Control Systems - 723.5 Computer Applications - 722 Computer Systems and Equipment - 608 Mechanical Engineering, General - 461.3 Biomechanics, Bionics and Biomimetics - 422 Strength of Building Materials; Test Equipment and Methods - 421 Strength of Building Materials; Mechanical Properties
DOI:10.3969/j.issn.1002-6819.2010.03.026
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 12>
Accession number:20102012932357
Title:Depletion and restoration of soil water in different cultivating systems in Gully Region of Loess Plateau
Authors:Li, Wei (1); Hao, Mingde (1); Wang, Xuechun (3)
Author affiliation:(1) College of Natural Resources and Environment, Northwest Agriculture and Forestry University, Yangling 712100, China; (2) Institute of Soil and Water Conservation, Chinese Academy of Sciences, Yangling 712100, China; (3) College of Agronomy, Northwest Agriculture and Forestry University, Yangling 712100, China
Corresponding author:Hao, M.
      (mdhao@ms.iswc.ac.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:99-105
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Soil desiccation is one of the key factors to influence the sustainable development of crop production on the Loess Plateau of China. So it has a great significance for the sustainable development of crop production to research the form and recovery of the dry layer of soil. In this article, depletion and restoration of soil water in different cultivating systems were analyzed based on the long-term experiment data at Changwu Agriculture Experimental Station. The results showed that comparing with bare land, the time in which maximal reduction of soil water occurred was August or September in maize land; May, June or July in wheat land; June or August in alfalfa land. In the growth period, from 1985 to 1990, the average soil water in 0-2 m soil layer of maize land, wheat land and alfalfa land decreased by 32.52, 60.27 and 86.47 mm compared with that of bare land. The restoration of soil water in different cultivating systems was different. Soil water of entire dry layer in maize land was thoroughly restored in high precipitation years. Soil water of part dry layer (0-3 m) was restored in wheat land in high precipitation years or in heavy rainfall months, but it was relatively hard to restore to its original level. Soil water in alfalfa land restored to a certain extent in the 0-3 m soil layer in rainy years but hard to restore in the 6-10 m soil layer.
Number of references:23
Main heading:Restoration
Controlled terms:Crops - Cultivation - Heavy water - Rain - Soil moisture - Strategic planning - Sustainable development - Underwater soils
Uncontrolled terms:Alfalfa - Bare lands - Crop production - Experimental stations - Growth period - Heavy rainfall - Key factors - Loess Plateau - Long-term experiments - Soil layer  - Soil water
Classification code:912.2 Management - 911.2 Industrial Economics - 901.4 Impact of Technology on Society - 821.4 Agricultural Products - 821.3 Agricultural Methods - 913.5 Maintenance - 804 Chemical Products Generally - 471.1 Oceanography, General - 443.3 Precipitation - 409 Civil Engineering, General - 402 Buildings and Towers - 483.1 Soils and Soil Mechanics
DOI:10.3969/j.issn.1002-6819.2010.3.017
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 13>
Accession number:20102012932353
Title:Effect of micro-catchment rainwater harvesting on water and nutrient use efficiency in farmland under different simulated rainfall conditions
Authors:Ren, Xiaolong (1); Jia, Zhikuan (1); Chen, Xiaoli (1)
Author affiliation:(1) Research Center of Dryland Farming In Arid and Semiarid Areas, Northwest Agricultural and Forest University, Yangling 712100, China; (2) Key Laboratory of Crop Production and Ecology in Dryland, Northwest Agricultural and Forest University, Yangling 712100, China
Corresponding author:Jia, Z.
      (Zhikuan@tom.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:75-81
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:In order to determine the optimum method for increasing the productivity and the ranges of rainfalls applicable for the plastic-covered furrow and ridge farming practice for rainwater concentration (RC), the experiment simulated different rainfalls to examine the effects of RC on the efficiency of farmland fertilizer utilization of corn plants in 2006-2007 (summer corn and spring corn were planted as the indicators in 2006 and 2007, respectively). The results showed that with the rainfalls ranging within 230-440 mm, RC practice could enhance the grain yield, water use efficiency (WUE) and nutrient use efficiency (NUE). In 2006, compared to conventional flat (CF) practice, the grain yield, WUE, NUE<inf>N</inf>, NUE<inf>P</inf> and NUE<inf>K</inf> under RC increased by 75.4%, 73.3%, 56.0%, 44.4% and 106.8%, respectively, at the rainfall of 230mm, and by 36.7%, 40.2%, 22.8%, 18.1% and 35.5% at the rainfall of 340mm, respectively. At the rainfall of 440mm, however, no significant difference was observed between RC and CF. In 2007, the grain yield, WUE, NUE<inf>N</inf>, NUE<inf>P</inf> and NUE<inf>K</inf> under RC were 82.8%, 77.4%, 64.0%, 52.2% and 123.9% higher, respectively, at the rainfall of 230mm than those of CF, and 43.4%, 43.1%, 30.4%, 21.8% and 41.2% higher, respectively, at the rainfall of 340mm than those of CF, while at the rainfall of 440mm, the grain yield, WUE and NUE<inf>N</inf> were 11.2%, 9.5% and 10.1% higher, respectively, under RC than under CF. Therefore, It is concluded that the RC farming practice could increase grain yield and improve WUE and NUE in farmland during the corn growing seasons with rainfall ranging 230-440 mm. It is also found that especially under lower rainfall, the practice had more obvious effect on the improvement of WUE and NUE and the increase of grain yield.
Number of references:21
Main heading:Rain
Controlled terms:Biochemical oxygen demand - Catchments - Farms - Harvesting - Nutrients - Runoff - Water supply - Water supply systems
Uncontrolled terms:Micro-catchment rainwater harvesting - Nutrient use efficiency (NUE) - Nutrient-use efficiencies - Rain water harvesting - Water-use efficiency
Classification code:822.3 Food Products - 453 Water Pollution - 454.3 Ecology and Ecosystems - 461.9 Biology - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 821.2 Agricultural Chemicals - 821.3 Agricultural Methods - 452.4 Industrial Wastes Treatment and Disposal - 446.1 Water Supply Systems - 444.1 Surface Water - 444 Water Resources - 443.3 Precipitation - 442.1 Flood Control - 452.2 Sewage Treatment
DOI:10.3969/j.issn.1002-6819.2010.03.013
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 14>
Accession number:20102012932396
Title:Separation of oat protein with hollow fiber ultrafiltration membrane and cleaning method
Authors:Zhang, Xiaoping (1); Dong, Yinmao (1); Liu, Yongguo (1); Song, Yan (1); Ren, Qing (1)
Author affiliation:(1) Beijing Key Laboratory of Plant Resources Research and Development, Beijing Technology and Business University, Beijing 100037, China
Corresponding author:Ren, Q.
      (renqing@th.btbu.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:332-340
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:According to recovery efficiency of oat protein, clearance efficiency of total sugar, degree of membrane fouling, concentration efficiency and recovery efficiency of flux of the factors, the optimum conditions for separating oat protein with hollow fiber ultrafiltration membrane and cleaning method were determined. The best operating conditions of the MOF503 were as follows: temperature 35&deg;C, pressure 0.02 MPa, pH 8 and flow rate 25 L/h. Under these conditions, the results of recovery efficiency of oat protein, clearance efficiency of total sugar, degree of membrane fouling, concentration efficiency were 80.3%, 79.5%, 41%, 43.5 L/(m²&middoth), respectively. And the batch ultrafiltration method supplementing with backpressure-flushing was better than other methods to separate oat protein. Through the experiments of physical and chemical cleaning with MOF503, the optimum conditions of cleaning with isotonic and backpressure-flushing water were determined, and the cleaning effect of backpressure-flushing water was the best, and the optimum chemical cleaning agent was HCl (pH 2) and NaOH+H<inf>2</inf>O<inf>2</inf>+HCl. If the physical and chemical cleaning were used alternately, recovery efficiency of flux can be up to more than 94.74%. The work indicate that separating oat protein with hollow fiber ultrafiltration membrane is feasible, and it will be a base for researching into separating protein with membrane.
Number of references:23
Main heading:Chemical cleaning
Controlled terms:Fibers - Membrane fouling - Membranes - pH effects - Proteins - Sugar (sucrose) - Ultrafiltration
Uncontrolled terms:Back pressures - Cleaning effect - Cleaning methods - Hollow fiber - Hollow fiber ultrafiltration membrane - Operating condition - Optimum conditions - Recovery efficiency
Classification code:951 Materials Science - 822.3 Food Products - 819.4 Fiber Products - 817 Plastics and Other Polymers: Products and Applications - 812 Ceramics, Refractories and Glass - 804.1 Organic Compounds - 804 Chemical Products Generally - 802.3 Chemical Operations - 801.1 Chemistry, General - 539.1 Metals Corrosion - 539 Metals Corrosion and Protection; Metal Plating
DOI:10.3969/j.issn.1002-6819.2010.03.056
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 15>
Accession number:20102012932380
Title:Rapid recognition method of nectar plant based on visible-near infrared spectroscopy
Authors:Yang, Yan (1); Nie, Pengcheng (1); Yang, Haiqing (1); He, Yong (1)
Author affiliation:(1) College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310029, China; (2) College of Mathematics Science, Guangxi Teacher University, Nanning 530023, China; (3) School of Electronic and Information Engineering, Nanchang Hangkong University, Nanchang 330069, China; (4) College of Information Engineering, Zhejiang University of Technology, Hangzhou 310032, China
Corresponding author:He, Y.
      (yhe@zju.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:238-242
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:The honey is worth of nectar plant. A rapid non-destructive method of pattern classification for nectar plant was developed based on visible-near infrared spectroscopy in this study. The nectar plants came from four categories which were Tilia, Astragalus, Leguminosae and Wild hrysanthemum, respectively. A total of 232 samples from four different nectar plants were studied. The calibration set was consisted of 212 samples and the predict set consisted of 20 samples. The classifier was constructed by calibration set which was selected randomly while prediction set was used for evaluating the study ability of classifier. The preprocessing methods were carried on the spectrum data, such as base line correction, normalization and smoothing. The preprocessing methods can enhance signal to noise ratio and remove the random error. The two classifier models were developed using pricipal component analysis combined with Bayesian line discriminant analysis based on one-two-many rule method and backpropagation atificial nerve net method. The accuracy of pricipal component analysis combined with Bayesian line discriminant analysis model was 91.95% and that of the BP- atificial nerve net model was 100%. The results indicated that the nectar plant would be quickly detected by Vis-NIR spectroscopy technique, and it is very feasible.
Number of references:16
Main heading:Principal component analysis
Controlled terms:Bayesian networks - Calibration - Classifiers - Discriminant analysis - Infrared devices - Infrared spectroscopy - Near infrared spectroscopy - Pattern recognition - Signal to noise ratio - Spectrum analysis
Uncontrolled terms:Base line - Bayesian - Classifier models - Component analysis - Discriminant analysis model - Leguminosae - Linear discriminants - Nectar - Net model - Nondestructive methods  - Pattern classification - Pre-processing method - Recognition methods - Vis-NIR spectroscopy - Visible-near infrared spectroscopy
Classification code:922 Statistical Methods - 922.2 Mathematical Statistics - 931.2 Physical Properties of Gases, Liquids and Solids - 931.3 Atomic and Molecular Physics - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory - 941 Acoustical and Optical Measuring Instruments - 942 Electric and Electronic Measuring Instruments - 943 Mechanical and Miscellaneous Measuring Instruments - 944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments - 941.4 Optical Variables Measurements - 921 Mathematics - 716.1 Information Theory and Signal Processing - 723.5 Computer Applications - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 716 Telecommunication; Radar, Radio and Television - 751.1 Acoustic Waves - 802.1 Chemical Plants and Equipment - 902.2 Codes and Standards - 903.1 Information Sources and Analysis - 801 Chemistry
DOI:10.3969/j.issn.1002-6819.2010.03.040
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 16>
Accession number:20102012932388
Title:Estimation of biogas production and effect of biogas construction on energy economy
Authors:Tang, Yunchuan (1); Zhang, Weifeng (1); Ma, Lin (2); Zhang, Fusuo (1)
Author affiliation:(1) College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; (2) College of Resources and Environmental Sciences, Agricultural University of Hebei, Baoding 071001, China
Corresponding author:Zhang, W.
      (wfzhang@126.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:281-288
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Animals data base for energy potential estimation (ABEPE) model and farmer survey data were used in this study to investigate the estimation of Chinese rural household biogas production. On this basis, the biogas yield, family energy consumption, economic profit, and environment profit were compared between biogas household and non biogas household. The results showed that the average biogas yield of Chinese rural household was 450 m³, under 9 months normal working period annually. There was a very significantly positive correlation between size of pigs and biogas yield. Energy consumption per capita was significantly different between biogas farmers and no-biogas farmers. Biogas contributed 18% to household energy consumption, but provided 40% effective heat per capita. The employed biogas digester substituted 15% of the commercial energy used in rural household, especially coal. With biogas facility, energy consumption per capita was only 419.56 kg of standard coal equivalent, which was 16% lower than non-biogas family, and could decrease the total energy payment by 2%. 559-938 yuan would be created from biogas facility annually, and 0.314 hm² woodland could be protected after biogas used. So, great profit can be got from energy saving and less commercial energy consumption when biogas facility is used.
Number of references:41
Main heading:Biogas
Controlled terms:Agriculture - Animals - Energy utilization - Estimation - Heating - Profitability
Uncontrolled terms:Biogas digesters - Biogas production - Commercial energy - Data base - Economic profit - Economy analysis - Energy consumption - Energy economy - Energy potential - Energy saving  - Gas yield - Gas yields - Household energy - Per capita - Positive correlations - Rural households - Survey data - Total energy
Classification code:911.2 Industrial Economics - 822 Food Technology - 821.5 Agricultural Wastes - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 814 Leather and Tanning - 921 Mathematics - 643.1 Space Heating - 525.3 Energy Utilization - 522 Gas Fuels - 471 Marine Science and Oceanography - 461 Bioengineering and Biology - 642.1 Process Heating
DOI:10.3969/j.issn.1002-6819.2010.03.048
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 17>
Accession number:20102012932358
Title:Evaluation on soil water validity using optimum partitioning clustering method
Authors:Shao, Xiaohou (1); Wang, Yu (1); Bi, Lidong (1); Dai, Ling (1); Yuan, Youbo (2); Su, Xiankun (2); Mo, Jianguo (3)
Author affiliation:(1) College of Agricultural Engineering, Hohai University, Nanjing 210098, China; (2) Guizhou Tobacco Science Research Institute, Guiyang 550003, China; (3) Guizhou Research Institute of Mountains Area Environment and Climate, Guiyang 550002, China
Corresponding author:Wang, Y.
      (wy1417@yahoo.com.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:106-111
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:For promoting the insufficiency in evaluating soil water availability (SWA) through soil water characteristic curve, soil water characteristic curves were partitioned by means of optimum partitioning clustering theory and clustering centre values were selected as evaluation indices. A projection pursuit evaluation model was constructed to evaluate soil water validity of 33 soil samples taken from 11 main tobacco-growing areas in Guizhou Province, China. The results were compared with those of conventional method by using soil physical properties as evaluation indices. The results showed that the selected indices could reflect soil water regime of tobacco field, and the results of the evaluation according to the indices were more comprehensive than those from conventional method.
Number of references:16
Main heading:Geologic models
Controlled terms:Cluster analysis - Moisture determination - Soil moisture - Soil structure interactions - Tobacco - Underwater soils
Uncontrolled terms:Clustering methods - Conventional methods - Evaluation index - Evaluation models - Guizhou Province - Projection pursuits - Soil physical property - Soil sample - Soil water - Soil water availability  - Soil water regime - Soil-water characteristic curve - Validity
Classification code:922 Statistical Methods - 821.4 Agricultural Products - 723 Computer Software, Data Handling and Applications - 944.2 Moisture Measurements - 483.2 Foundations - 481.1 Geology - 471.1 Oceanography, General - 483.1 Soils and Soil Mechanics
DOI:10.3969/j.issn.1002-6819.2010.03.018
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 18>
Accession number:20102012932365
Title:Evaluation of tractor drivers' neck fatigue by surface electromyogram
Authors:Zhao, Yongchao (1); Kong, Degang (1)
Author affiliation:(1) Engineering College, Northeast Agricultural University, Harbin 150030, China
Corresponding author:Kong, D.
      (kong-degang@hotmail.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:146-150
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:For understanding the fatigue situation of tractor drivers' neck muscle during operation, the electromyogram signal of sternocleidomastoid muscle was tested by simulating the process of reversing operation. Then analysis was conducted in time domain, frequency domain and time-frequency domain by using the index of integrated electromyogram, mean power frequency and wavelet decomposition coefficients. The results showed that the iEMG, MPF and wavelet decomposition coefficients had downward trend after tractor drivers' neck became fatigue. There is a significant difference of the iEMG, MPF and wavelet decomposition coefficients before and after fatigue, which can effectively evaluate the tractor drivers' neck fatigue.
Number of references:18
Main heading:Wavelet decomposition
Controlled terms:Electromyography - Fatigue testing - Frequency domain analysis - Muscle - Statistical tests - Steel bridges - Time domain analysis - Tractors (agricultural) - Tractors (truck)
Uncontrolled terms:Before and after - Electromyogram - Electromyogram signals - Frequency domains - Mean power frequency - Sternocleidomastoid muscles - Surface electromyogram - Time domain - Time frequency domain - Tractors
Classification code:922.2 Mathematical Statistics - 663.1 Heavy Duty Motor Vehicles - 703.1.1 Electric Network Analysis - 731.1 Control Systems - 821.1 Agricultural Machinery and Equipment - 921 Mathematics - 921.3 Mathematical Transformations - 545.3 Steel - 461.3 Biomechanics, Bionics and Biomimetics - 461.2 Biological Materials and Tissue Engineering - 461.1 Biomedical Engineering - 422.2 Test Methods - 401.1 Bridges - 461.6 Medicine and Pharmacology
DOI:10.3969/j.issn.1002-6819.2010.03.025
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 19>
Accession number:20102012932360
Title:Flow field analysis and performance prediction of three-dimensional turbulent flow in francis turbine
Authors:Xin, Zhe (1); Wu, Junhong (1); Chang, Jinshi (2)
Author affiliation:(1) College of Engineering, China Agricultural University, Beijing 100083, China; (2) College of Water Conservancy and Civil Engineering, China Agricultural University, Beijing 100083, China
Corresponding author:Xin, Z.
      (xinzhecau@163.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:118-124
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:To study the inner flow by numerical simulation method is an important way for optimum design of francis turbine. Based on the 3D time-average Navier-Stokes equations, &kappa;-&Epsilon; model was used to simulate the 3D turbulent flow field of whole flow passage in the Francis turbine including guide wickets, runner and draft tube. The energy performance and cavitation performance were predicted from the simulation results, and the calculated data were compared with the results of hydraulic turbine model experiment. The calculation of turbine efficiency and the measured efficiency was very closed and the maximal relative error was 0.9%. The ratio between calculated initial cavitation coefficient and measured critical cavitation coefficient was 1.57-1.99, and was in line with reality. The results show that the method of combining the whole passage computing with single passage computing has higher calculation efficiency and accuracy, and is feasible and applicable to solve the engineering problems.
Number of references:17
Main heading:Three dimensional
Controlled terms:Cavitation - Computational methods - Flow fields - Flow simulation - Forecasting - Francis turbines - Hydraulic machinery - Hydraulic motors - Navier Stokes equations - Turbines  - Turbulent flow
Uncontrolled terms:3D turbulent - Calculation efficiency - Cavitation performance - Draft tubes - Energy performance - Engineering problems - Hydraulic turbine models - In-line - Inner flow - Numerical simulation method  - Optimum designs - Performance prediction - Relative errors - Simulation result - Three-dimensional turbulent flow - Turbine efficiency - Whole flow passage
Classification code:931.1 Mechanics - 723.5 Computer Applications - 902.1 Engineering Graphics - 912.2 Management - 921 Mathematics - 921.2 Calculus - 922.2 Mathematical Statistics - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 631.1.1 Liquid Dynamics - 631.1 Fluid Flow, General - 617.2 Steam Turbines - 617.1 Hydraulic Turbines - 612.3 Gas Turbines and Engines - 632.2 Hydraulic Equipment and Machinery
DOI:10.3969/j.issn.1002-6819.2010.03.020
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 20>
Accession number:20102012932401
Title:Effects of ascorbic acid and glutathione treatments on litchi fruits during post harvest storage
Authors:Mo, Yiwei (1); Zheng, Jixiang (1); Li, Weicai (1); Niu, Tiequan (2); Xie, Jianghui (1)
Author affiliation:(1) Institute of South Subtropical Crop Research, Chinese Academy of Tropical Agricultural Science, Zhanjiang 524091, China; (2) College of horticultural Science, Shanxi Agricultural University, Taigu 030800, China; (3) Hainan Province Key Lab. of Postharvest Physiology and Technology of Tropical Horticultural Products, Zhanjiang 524091, China
Corresponding author:Xie, J.
      (xiejianghui08@yahoo.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:363-368
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:To investigate the effects of ascorbic acid (AsA) and glutathione (GSH) on the preservation of litchi fruits, three groups of harvested fruits were used in the experiment. Group One was immerged in a solution of 50 mmol/L ascorbic acid combined with 500 mg/L carbendazim+3 mL/L sportak+15 mmol/L citric acid for 5 min; Group Two in 50 mmol/L glutathione combined with 500 mg/L carbendazim+3 mL/L sportak+15 mmol/L citric acid for 5 min; and Group Three, as control, in 500 mg/L carbendazim+3 mL/L sportak+15 mmol/L citric acid for 5 min. All the samples were dried at 18&deg;C in the air-conditioned room. Then, each group was divided into two sub-groups: one was stored at the electric thermostat-box at 6&deg;C with 80% relative humidity, and the other was stored at room temperature. Compared with the control, both AsA and GSH treatments reduced the activities of PPO and the relative electric leakage in pericarp, significantly enhanced the activities of SOD, CAT and reduced the content of H<inf>2</inf>O<inf>2</inf> and MDA in pulp. AsA and GSH treatments also increased the content of vitamin C and GSH in pulp. Both AsA and GSH treatments effectively preserved fruits in low temperature and reduced the decay rate of fruits, but AsA treatment was more effective than GSH treatment. AsA treatment was also effective in room temperature while GSH treatment was not.
Number of references:18
Main heading:Fruits
Controlled terms:Atmospheric humidity - Citric acid - Decay (organic) - Harvesting - Ketones - Organic acids
Uncontrolled terms:Ascorbic acid - Ascorbic acids - Carbendazim - Decay rate - Electric leakage - Glutathiones - Litchi fruit - Low temperatures - Post-harvest storage - Relative humidities  - Room temperature - Sub-groups - Vitamin C
Classification code:821.4 Agricultural Products - 821.3 Agricultural Methods - 811.2 Wood and Wood Products - 822 Food Technology - 804.1 Organic Compounds - 801.2 Biochemistry - 443.1 Atmospheric Properties - 802.2 Chemical Reactions
DOI:10.3969/j.issn.1002-6819.2010.03.061
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 21>
Accession number:20102012932403
Title:Early warning index system of regional integrated food security and risk
Authors:Zhong, Laiyuan (1); Liu, Liming (1); Wang, Xing (1); Liu, Yabin (1)
Author affiliation:(1) Department of Land Resource Management, China Agricultural University, Beijing 100193, China; (2) College of Agronomy, Guangdong Ocean University, Zhanjiang 524088, China
Corresponding author:Liu, L.
      (liulm@cau.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:374-379
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Regional integrated food security is an important part of national general food security. For the regional integrated food security, establishment of risk index system for early warning is the premise for risk early warning and effective precaution. In this paper, the conceptions of integrative food security were defined (i.e. food quantity security, food quality security and food sustainable supply security), a framework of index system for early warning was established, and instructions on the calculation of each index were achieved. Meanwhile, a case study was carried out in Hunan Province. The results showed that in the 14 years of 1992-2005, the integrated food security in Hunan Province was at a level of slight alarm, in which the food quantity security was at a stable no-alarm level, the food qualitative security at a relatively serious situation due to its 9 years of medium alarm and 5 years of heavy alarm; and the tendency of food sustainable supply security in a positive process for its 1 year of medium alarm, 5 years of slight alarm and the rest years of no-alarm. Thus the quality security should be regarded as the key issue of risk prevention of integrated food security in Hunan Province, at the same time the sustainable supply security should be strengthened.
Number of references:18
Main heading:Alarm systems
Controlled terms:Safety factor - Systems analysis
Uncontrolled terms:Alarm level - Early warning - Food quality - Food quantity - Food security - General foods - Hunan province - Index systems - Key issues - Regional scale  - Risk early warning - Risk indices - Risk prevention - Supply security - System analysis
Classification code:914.2 Fires and Fire Protection - 914.1 Accidents and Accident Prevention - 912.3 Operations Research - 961 Systems Science - 731.1 Control Systems - 652.1 Aircraft, General - 408.1 Structural Design, General - 662.1 Automobiles
DOI:10.3969/j.issn.1002-6819.2010.03.063
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 22>
Accession number:20102012932389
Title:Liquefaction of woody biomass by flow through hot-compressed water
Authors:L&#252;, Xin (1); Shiro, Saka (2)
Author affiliation:(1) College of Food Science and Engineering, Northwest Agriculture and Forestry University, Yangling 712100, China; (2) Graduate School of Energy, Kyoto University, Kyoto 606-8501, Japan
Corresponding author:L&#252;, X.
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:289-293
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Flow-through hot-compressed water apparatus was used to study the performance of liquefaction of Japanese beech. The experiments were operated at pressure of 10 MPa, flow rate of 10 mL/min with various temperature from 160&deg;C to 280&deg;C. The effect of temperature on saccharides from hemicelluloses, saccharides from cellulose and decomposed compounds in water-soluble portion was studied. Water-soluble portion increased with temperature and 96.5% wood could be hydrolyzed into water at 280&deg;C. Both sacchairdes from hemicelluloses and saccharides from cellulose increased with temperature, which reached maximum value at 250&deg;C and 280&deg;C, respectively. 5-HMF and furfural increased with temperature as well. Meanwhile, X-ray was carried out to investigate the crystallinity of water-insoluble residues. The crystalline index increased with temperature, however, it decreased suddenly at 280&deg;C and the peak of (002) lattice plane disappeared, which showed that the crystal structure of cellulose was destroyed completely. Furthermore, the typical hemicelluloses peak was disappeared at 250&deg;C according to FT-IR spectra, which indicated that hemicelluloses were completely hydrolyzed at 250&deg;C. At 280&deg;C, not only hemicelluloses peak but also cellulose peaks disappeared, while characteristic peaks of water-insoluble residue were lignin-derived aromatic skeleton. It is concluded that flow-through hot-compressed water can be used to completely hydrolyze woody-biomass for saccharides production.
Number of references:18
Main heading:Cellulose
Controlled terms:Aldehydes - Biofuels - Biomass - Crystal structure - Hydrolysis - Liquefaction - Pressure effects - Sugars - Water
Uncontrolled terms:Aromatic skeleton - Characteristic peaks - Crystalline index - Crystallinities - Effect of temperature - Flowthrough - FT-IR spectrum - Hot compressed water - Insoluble residue - Lattice plane  - Maximum values - Water-soluble portions - Woody biomass
Classification code:804.1 Organic Compounds - 804.2 Inorganic Compounds - 805.1.1 Biochemical Engineering - 933.1.1 Crystal Lattice - 811.3 Cellulose, Lignin and Derivatives - 821.5 Agricultural Wastes - 931.1 Mechanics - 815.1.1 Organic Polymers - 802.3 Chemical Operations - 802.2 Chemical Reactions - 444 Water Resources - 523 Liquid Fuels - 524 Solid Fuels - 525.1 Energy Resources and Renewable Energy Issues - 531.2 Metallography - 801.4 Physical Chemistry
DOI:10.3969/j.issn.1002-6819.2010.03.049
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 23>
Accession number:20102012932402
Title:Models of moisture sorption isotherms for pelleted finishing broiler feed
Authors:Liu, Huanlong (1); Pan, Baohai (2); Li, Junguo (2); Xu, Xueming (1); Jin, Zhengyu (1)
Author affiliation:(1) State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (2) Feed Research Institute, China Academy of Agricultural Science, Beijing 100081, China
Corresponding author:Jin, Z.
      (jinlab2008@yahoo.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:369-373
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:To investigate the adsorption and desorption behavior of compound feeds, Guggenheim-Anderson-de Boer (GAB) equation and modified GAB were applied to fit the equilibrium moisture content (EMC) data of adsorption of a pelleted finishing broiler feed at equilibrium relative humidity (decimal, or water activity, Aw) from 0.11 to 0.97 and the desorption at water activities from 0.11 to 0.75 at 15&deg;C, 25&deg;C, 35&deg;C and 45&deg;C, obtained by the conventional static gravimetric method. Both the equations gave excellent fitting goodness. EMC of the pellet feed reduced when temperature increased. Hysteresis existed between desorption and adsorption. Monolayer moisture content (M<inf>m</inf>) from 15&deg;C to 45&deg;C estimated by Brunauer-Emmet-Teller (BET), fitting the desorption data, was between 6.34% and 5.39% (dry basis). The M<inf>m</inf> reduced linearly with increasing temperature. Safe moisture content at the four temperatures, predicted by applying the modified GAB to adsorption and desorption data, was less than 13.09% and 14.71%, 12.92% and 14.33%, 12.74% and 14.00%, 12.56% and 13.66% (dry basis), respectively at Aw=0.65 as the critical point. The results give a reference for the feeds storage and cooling process.
Number of references:20
Main heading:Moisture control
Controlled terms:Adsorption - Atmospheric humidity - Desorption - Equations of state - Grain (agricultural product) - Moisture determination - Monolayers - Pelletizing - Water content
Uncontrolled terms:Andersons - Broiler feed - Broiler feeds - Brunauer emmet tellers - Cooling process - Critical points - De boers - Desorption behavior - Equilibrium moisture contents - Equilibrium relative humidity  - Gravimetric methods - Guggenheim - Moisture contents - Moisture sorption isotherms - Monolayer moisture content - Sorption equilibria - Water activity
Classification code:944.2 Moisture Measurements - 931.2 Physical Properties of Gases, Liquids and Solids - 921 Mathematics - 821.4 Agricultural Products - 813.2 Coating Materials - 802.3 Chemical Operations - 731.3 Specific Variables Control - 712.1 Semiconducting Materials - 533.1 Ore Treatment - 444 Water Resources - 443.1 Atmospheric Properties
DOI:10.3969/j.issn.1002-6819.2010.03.062
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 24>
Accession number:20102012932345
Title:Field trial for characteristics of soil water and salt distribution in drip fertigation of kalium-using fertilizers
Authors:Wang, Chunxia (1); Wang, Quanjiu (1); Liu, Jianjun (1); Zhuang, Liang (3); Zhen, Xing (3)
Author affiliation:(1) Institute of Water Resources, Xi'an University Technology, Xi'an 710048, China; (2) State Key Laboratory of Soil Erosion and Dry Land Farming on the Loess Plateau, Yangling 712100, China; (3) Xinjiang Institute of Water Conservation and Hydraulic Power, Wulumuqi 830049, China
Corresponding author:Wang, Q.
      (wquanjiu@163.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:25-31
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:The chemical ameliorant using in salt field is a kind of efficient method, which can meliorate the physical chemistry characteristics of soil. But a problem is always concerned, that is how to combine chemical ameliorant and the under-mulch drip irrigation and the soil fertility. Through analyzing characteristics of soil water and salt distribution in drip fertigation of kalium-using fertilizers, the characteristics of soil water and ion distribution were studied under three kinds of kalium-using concentrations as 400, 800 and 1000 mg/L and five kinds of kalium-using modes (continuous drip irrigation, drip irrigation of water (W)-drip fertigation of KNO<inf>3</inf> (K), K-W, K-W-K, and W-K-W) as concatenation, in 0-30 cm cultivation layer. Results indicated that the soil ion forms were changed through drip fertigation of kalium-using fertilizers, Ca²⁺ and Mg²⁺ concentrations relatively increased, Na⁺ concentration reduced, anion SO<inf>4</inf>^2- concentration increased and Cl^- concentration falled, the total salt content, sodium absorption ratio (SAR) and Cl^-/SO<inf>4</inf>^2- reduced by high kalium-using concentration in cultivation layer, SAR and Cl^-/SO<inf>4</inf>^2- in W-K kalium-using mode were least in five kinds of kalium-using modes, which showed drip fertigation of niter-using had visible meliorated effect in cultivation layer, and the effect of pulling salts with 1000 mg/L kalium-using fertilizer and W-K mode were best in three kinds of kalium-using concentrations and five kinds of kalium-using modes.
Number of references:18
Main heading:Irrigation
Controlled terms:Calcium - Concentration (process) - Desalination - Fertilizers - Ions - Moisture determination - Physical chemistry - Soil moisture - Underwater soils - Water filtration
Uncontrolled terms:Absorption ratio - Drip irrigation - Efficient method - Fertigations - Field trial - Ion distributions - k-Modes - Kalium - Salt content - Salt field  - Soil fertility - Soil water
Classification code:944.2 Moisture Measurements - 801.4 Physical Chemistry - 802.3 Chemical Operations - 804 Chemical Products Generally - 821.2 Agricultural Chemicals - 821.3 Agricultural Methods - 931.3 Atomic and Molecular Physics - 801 Chemistry - 549.2 Alkaline Earth Metals - 483.1 Soils and Soil Mechanics - 471.4 Seawater, Tides and Waves - 471.1 Oceanography, General - 445.1 Water Treatment Techniques - 701.1 Electricity: Basic Concepts and Phenomena
DOI:10.3969/j.issn.1002-6819.2010.03.005
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 25>
Accession number:20102012932385
Title:Capacity allocation of rural hybrid generating system based on stochastic chance constrained programming
Authors:Zhang, Fan (1); Cai, Zhuang (1); Yang, Minghao (1)
Author affiliation:(1) Department of Electrical Power Engineering, China Agricultural University, Beijing 100083, China
Corresponding author:Yang, M.
      (mhyang@cau.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:267-271
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:It is proved to be an efficient way to improve energy supply in rural area by developing wind, hydro and solar energy. But how to optimize configuration properly is still an immediate problem to be solved. The generating unit models for wind and water power are statistic random models based on inverse transformation from random sampling of wind speed and water flow, and what's more, the optimum disposition model of rural hybrid generating system based on random chance constrained programming is proposed. The disposition model are to minimize investment capital and operational costs per year, and to maximize the utilization of resources and the reliability of power supply, which is also subjected to power balance and constraints of local resources. A Monte Carto-GA approach for solving the generation disposition problem is given, and the solution is a set of optimum plans listed by an annual rate of resource utilization, the loss of load probability and the loss of power supply probability. An application case study is given to prove the feasibility of the model.
Number of references:18
Main heading:Wind power
Controlled terms:Energy resources - Investments - Mobile telecommunication systems - Probability - Rural areas - Solar energy - Stochastic programming - Stochastic systems - Water power
Uncontrolled terms:Annual rates - Capacity allocation - Chance-Constrained Programming - Energy supplies - Generating system - Generating unit - Inverse transformations - Investment capital - Loss of Load probabilities - Loss of power supply probability  - Operational costs - Power balance - Random Model - Random sampling - Reliability of power supply - Resource utilizations - Water flows - Wind speed
Classification code:961 Systems Science - 723.1 Computer Programming - 731.1 Control Systems - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 901.4 Impact of Technology on Society - 911.2 Industrial Economics - 921.5 Optimization Techniques - 922 Statistical Methods - 922.1 Probability Theory - 718 Telephone Systems and Related Technologies; Line Communications - 403.2 Regional Planning and Development - 525.1 Energy Resources and Renewable Energy Issues - 611 Hydroelectric and Tidal Power Plants - 717 Optical Communication - 615.2 Solar Power - 657.1 Solar Energy and Phenomena - 716 Telecommunication; Radar, Radio and Television - 615.8 Wind Power (Before , use code )
DOI:10.3969/j.issn.1002-6819.2010.03.045
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 26>
Accession number:20102012932362
Title:Identification of dynamic load of air suspension system
Authors:Yang, Bin (1); Tang, Haiyan (2)
Author affiliation:(1) Mechanical Engineering Branch, Tongling University, Tongling 244000, China; (2) Department of Aviation Theory, Air Force Aviation University, Changchun 130000, China
Corresponding author:Yang, B.
      (yangbinwindows@163.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:130-134
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Based on training neuroidentifier in off-line way in active control of air suspension system, BP artificial neural network was applied in the research of identifying dynamic load of air suspension system by vibrant acceleration of under spring mass. A dynamic model of 1/4 engineering vehicle with air suspension system was built. Vibrant acceleration data of under spring mass and dynamic load data of engineering vehicle were acquired by simulation. Vibrant acceleration data of under spring mass were input data of BP neural network, dynamic load data were output data of BP neural network. BP neural network was trained by input and output data of air suspension system. Generalized ability of trained BP neural network was tested. Road input was sine wave that its amplitude was 0.01 m and its frequency was 1 rad/s. The percentage was 82.95% that the ratio of failure identifying points to total points less than 30%. Road input was sine wave that its amplitude was 0.02 m and its frequency was 2 rad/s. The percentage was 77.94% that the ratio of failure identifying points to total points less than 30%. The result indicates that BP neural network can adapt different road inputs.
Number of references:18
Main heading:Neural networks
Controlled terms:Automobile suspensions - Control system analysis - Dynamic loads - Dynamic programming - Roads and streets - Safety engineering - Signal analysis - Suspensions (components) - Suspensions (fluids)
Uncontrolled terms:Acceleration data - Active control - Air suspension - Air suspensions - BP artificial neural network - BP neural networks - Engineering vehicles - Input and outputs - Input datas - Neuro identifiers  - Output data - Sine-wave - Spring mass
Classification code:921.5 Optimization Techniques - 716.1 Information Theory and Signal Processing - 723.4 Artificial Intelligence - 731.1 Control Systems - 801.3 Colloid Chemistry - 804 Chemical Products Generally - 914 Safety Engineering - 663.2 Heavy Duty Motor Vehicle Components - 632.1 Hydraulics - 601.2 Machine Components - 461.1 Biomedical Engineering - 408.1 Structural Design, General - 406.2 Roads and Streets - 662.4 Automobile and Smaller Vehicle Components
DOI:10.3969/j.issn.1002-6819.2010.03.022
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 27>
Accession number:20102012932348
Title:Effect of mulch-drip irrigation on soil enzyme activities of saline-sodic soil with shallow water table
Authors:Dou, Chaoyin (1); Kang, Yuehu (1); Wan, Shuqin (1); L&#252;, Guohua (1)
Author affiliation:(1) Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; (2) Graduate School, Chinese Academy of Sciences, Beijing 100039, China
Corresponding author:Kang, Y.
      (kangyh@igsnrr.ac.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:44-51
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:In order to know the effects of mulch-drip irrigation on soil enzyme activities of saline-sodic soil with shallow water table, activities of alkaline phosphatase, urease, and invertase around the dripper, within 30 cm in horizontal direction and 40 cm in vertical direction from the dripper during the reclamation process, were investigated. Changes and distribution of soil enzyme activities, also their relationships with principal soil environment factors were studied. The results showed that activities of alkaline phosphatase, urease and invertase were promoted with time as the saline-sodic soil being reclaimed. Activities of the three enzymes around the dripper increased during the irrigation period and decreased as irrigation ceased in both horizontal and vertical directions. Furthermore, distributions of soil enzyme activities which decreased radially from the dripper in soil profiles were like ellipses. Correlation analysis showed that after two years of irrigation, relationships between soil enzyme activities and principal soil environment factors, also the relationship between soil enzymes, increased. Therefore, reclamation of saline-sodic soils by mulch-drip irrigation could promote soil enzyme activities, ameliorate soil environment and provide plants a good growth condition.
Number of references:23
Main heading:Soils
Controlled terms:Aquifers - Catalysts - Enzyme activity - Enzymes - Irrigation - Phosphatases - Saline water - Wastewater reclamation
Uncontrolled terms:ALkaline phosphatase - Correlation analysis - Drip irrigation - Growth conditions - Irrigation period - Reclamation process - Saline-sodic soil - Shallow water tables - Sodic soil - Soil environment  - Soil enzyme activity - Soil enzymes - Soil profiles - Vertical direction
Classification code:804.1 Organic Compounds - 804 Chemical Products Generally - 803 Chemical Agents and Basic Industrial Chemicals - 801.2 Biochemistry - 483.1 Soils and Soil Mechanics - 821.3 Agricultural Methods - 461.9 Biology - 454.2 Environmental Impact and Protection - 452.4 Industrial Wastes Treatment and Disposal - 444.2 Groundwater - 444 Water Resources - 461.2 Biological Materials and Tissue Engineering
DOI:10.3969/j.issn.1002-6819.2010.03.008
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 28>
Accession number:20102012932369
Title:Classification method of grassland types using satellite images in northwest agro-pastoral zone of China
Authors:Wen, Qingke (1); Zhang, Zengxiang (1); Wang, Xiao (1); Qiao, Zhuping (1); Xu, Jinyong (1)
Author affiliation:(1) Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, China; (2) Graduate University, Chinese Academy of Sciences, Beijing 100049, China
Corresponding author:Wen, Q.
      (wenqingkeke@126.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:171-177
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Grasslands are the largest ecological barriers for the northwest agro-pastoral zone of China. Grassland classification is significant for ecological environmental conservation. This paper defines a grassland classification technique based on the remote sensing technology in Gansu Province, as the typical region for northwest agro-pastoral zone. High temporal resolution of Moderate Resolution Imaging Spectroradiometer (MODIS) is used to construct temporal profile of enhanced vegetation index (EVI) during the grass growth period (April to September). Typical temporal profile of EVI for each grassland type was constructed based on synchronous field samples. The study area is divided into a few of natural subregion based on elevation and the Yellow River division. Decision tree was established with similarities between each pixel and typical temporal profile, and classification was completed in each natural subregion. Based on the 1:500000 scale maps of China's grassland resources, the validation process indicated that overall accuracy of classification results was 71.41%, and kappa coefficient was 0.66. The area of each grassland type was also close to that in the sample atlas, which proved that MODIS EVI was effective for grassland classification. As MODIS images are free and suitable for large area monitoring, it is possible to conducted low-cost, high precision and macro grassland classification.
Number of references:18
Main heading:Gene transfer
Controlled terms:Conservation - Decision trees - Forestry - Radiometers - Remote sensing - Satellite imagery - Spectrometers - Vegetation
Uncontrolled terms:Area monitoring - Classification - Classification decision - Classification methods - Classification results - Classification technique - Enhanced vegetation index - Environmental conservation - Gansu province - Grassland resource  - Growth period - High precision - High temporal resolution - Kappa coefficient - Moderate resolution imaging spectroradiometer - Natural subregions - Remote sensing technology - Satellite images - Study areas - Temporal profile  - Validation process - Yellow river
Classification code:961 Systems Science - 801 Chemistry - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 821.0 Woodlands and Forestry - 912.1 Industrial Engineering - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory - 922 Statistical Methods - 941.3 Optical Instruments - 944.7 Radiation Measuring Instruments - 741.3 Optical Devices and Systems - 443 Meteorology - 454 Environmental Engineering - 461.8.1 Genetic Engineering - 731.1 Control Systems - 461.9 Biology - 655.2 Satellites - 656.2 Space Research - 525.1 Energy Resources and Renewable Energy Issues
DOI:10.3969/j.issn.1002-6819.2010.03.029
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 29>
Accession number:20102012932375
Title:Development of web-based Chinese tobacco germplasm resources information system
Authors:Ren, Min (1); Zhang, Xingwei (1); Zhang, Jiuquan (1); Wang, Zhide (1); Liu, Yanhua (1); Mu, Jianmin (1)
Author affiliation:(1) Key Laboratory of Tobacco Quality Control, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
Corresponding author:Wang, Z.
      (wzdycs@tom.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:209-215
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:For promoting the application and sharing of tobacco germplasm resources in China, a web-based Chinese tobacco germplasm resources information system (CTGRIS) was developed by using B/S (browser/server) architecture and ASP.NET technology. Microsoft SQL Server was used as database management system. Server-side assemblies were programmed by C#, and client-side (web page) was implemented by using XHTML with JavaScript. Based on two backend databases (characteristic database and common database), this system can provide five kinds of information services, including germplasm resources query, core collection query, tobacco image query, common data query and germplasm resources sharing. The CTGRIS is a powerful tool for tobacco scientific research, which will facilitate the information and germplasm resources sharing and exchange.
Number of references:19
Main heading:Natural resources
Controlled terms:Conservation - Database systems - Information services - Information systems - Internet - Management information systems - Tobacco
Uncontrolled terms:ASP.NEt - B/S (browser/server) model - Back-end database - Browser/server - Data query - Data-base management systems - Germplasms - Image query - Javascript - Microsoft SQL Server  - Resources information - Resources sharing - Scientific researches - Web page
Classification code:723 Computer Software, Data Handling and Applications - 723.2 Data Processing and Image Processing - 723.3 Database Systems - 912.2 Management - 821.4 Agricultural Products - 903.3 Information Retrieval and Use - 903.4 Information Services - 903.2 Information Dissemination - 718 Telephone Systems and Related Technologies; Line Communications - 717 Optical Communication - 444 Water Resources - 454 Environmental Engineering - 481.3.1 Geothermal Phenomena - 501 Exploration and Prospecting - 512 Petroleum and Related Deposits - 716 Telecommunication; Radar, Radio and Television
DOI:10.3969/j.issn.1002-6819.2010.03.035
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 30>
Accession number:20102012932342
Title:Effect of initial soil water content on crude oil infiltration into soils
Authors:Zhang, Bowen (1); Shao, Ming'an (1)
Author affiliation:(1) State Key Laboratory of Soil Erosion and Dry-land Farming on the Loess Plateau, Northwest Agriculture and Forestry University, Yangling 712100, China; (2) Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, China
Corresponding author:Shao, M.
      (mashao@ms.iswc.ac.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:9-13
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:To investigate the effect of initial soil water content on crude oil infiltration in soil, the crude oil infiltration experiments in three types of soils under different soil water content was conducted. The change of different soil water content in response to the change of infiltration was studied. Results indicated that the crude oil advance distance and the rate of advance increased with increasing of initial soil water content for a given soil type. When the initial soil water content was low, the content of silt would decelerate the crude oil infiltration process. The amount of residues left in the soils decreased with fluctuation while the soil depth increased. The relationships between the advance distances and infiltration time can be well described by a logarithmic function, while the rate of advance can be well fitted by Kostiakov function. The study provided some information for the remediation of contaminated soil.
Number of references:19
Main heading:Water content
Controlled terms:Crude oil - Remediation - Seepage - Soil mechanics - Soil moisture - Soil pollution - Underwater soils
Uncontrolled terms:Contaminated soils - Infiltration time - Logarithmic functions - Soil depth - Soil types - Soil water content
Classification code:512.1 Petroleum Deposits - 483.1 Soils and Soil Mechanics - 471.1 Oceanography, General - 523 Liquid Fuels - 454.2 Environmental Impact and Protection - 441 Dams and Reservoirs; Hydro Development - 407 Maritime and Port Structures; Rivers and Other Waterways - 444 Water Resources
DOI:10.3969/j.issn.1002-6819.2010.03.002
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 31>
Accession number:20102012932364
Title:Effects of configuration parameters of sand sampler on sand collection efficiency
Authors:Zhao, Manquan (1); Wang, Jinlian (1); Liu, Hantao (1); Chen, Zhi (1)
Author affiliation:(1) College of Mechanical and Electrical Engineering, Inner Mongolia Agricultural University, Huhhot 010018, China; (2) Department of Control and Mechanical and Electrical Engineering, Inner Mongolia Chemical Engineering Professional College, Huhhot 010010, China
Corresponding author:Zhao, M.
      (nmgzmq@yahoo.com.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:140-145
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:By analyzing the research results of scholars overseas and domestic in recent years, the main structural factors which impact sampling efficiency were ascertained. They are the ratio of inlet height to width, the channel length, and material of hop-pocket. According to the sand sampler for performance test requirements, different construction parameter sand samplers were designed and tested in the wind erosion tunnel. The results indicate that the average sampling efficiency to soil particles of 0.15-0.60 mm is higher than intermixed dust and 0.15 mm under 6, 9, 12, 15, 18 m/s wind speed. The sampler is applicable to the acquisition of soil particles with the form of jump movement. The order of structural factors that affect sampling efficiency is the ratio of inlet height to width, the channel length, and material of hop-pocket. And the ratio of inlet height to width is the most remarkably factor. By the variance and range analysis, the optimization structure parameter of the sand sampler is as follows: the ratio of inlet height to width is 0.5, the channel length is 20 cm and the material of hop-pocket is falda. Under this situation, the average sampling efficiency of the sand sampler is 80.91%.
Number of references:11
Main heading:Sampling
Controlled terms:Aerodynamics - Sand - Soil mechanics - Soils - Structural optimization - Wind tunnels
Uncontrolled terms:Channel length - Configuration parameters - Construction parameter - Performance tests - Range analysis - Research results - Sampler - Sampling efficiency - Sand collection - Soil particles  - Structural factor - Structure parameter - Wind erosions - Wind speed
Classification code:922.1 Probability Theory - 921.5 Optimization Techniques - 913.3 Quality Assurance and Control - 801 Chemistry - 651.2 Wind Tunnels - 651.1 Aerodynamics, General - 505 Mines and Mining, Nonmetallic - 483.1 Soils and Soil Mechanics - 422.1 Test Equipment
DOI:10.3969/j.issn.1002-6819.2010.03.024
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 32>
Accession number:20102012932373
Title:Development of wireless intelligent control terminal of greenhouse based on ZigBee
Authors:Yang, Wei (1); L&#252;, Ke (2); Zhang, Dong (1); Wu, Song (1); Long, Zhiqiang (1); Shang, Shouhai (1)
Author affiliation:(1) Beijing Kingpeng International High Technology Corporation, Beijing 100094, China; (2) Beijing Agricultural Machinery Institute, Beijing 100096, China
Corresponding author:Yang, W.
      (weiwei810311@163.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:198-202
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:For meeting the needs of informatization and automatic control terminal of greenhouse, an intelligent control system was developed based on ZigBee. JN5139-M01 Module made by Jennic Company was used as main unit. The whole system contained several wireless data collecting nodes, intelligent voice module, and a wireless intelligent control terminal. The wireless data collecting nodes based on ZigBee were distributed over the whole greenhouse and used to take charge of data collecting, preprocessing and wireless transmission. Wireless intelligent control terminal was used to collect data from all nodes and manage environmental factors of greenhouse, such as soil temperature, leave temperature, light intensity, growth speed of plant, and soil water content. Intelligent voice module could provide real-time production advice according to data collected from all wireless nodes. The test results showed that the wireless intelligent control terminal has been successfully used on monitoring and controlling environmental factors in greenhouse. Testing proved that the system run stably, and was easy to operate and to use.
Number of references:15
Main heading:Wireless sensor networks
Controlled terms:Automation - Data acquisition - Greenhouses - Intelligent control - Sensor networks - Soil moisture - Underwater soils - Water content
Uncontrolled terms:AS-soils - Automatic control - Data collecting - Environmental factors - Growth speed - Informatization - Light intensity - Monitoring and controlling - Real-time production - Soil water content  - Test results - Whole systems - Wireless data - Wireless nodes - Wireless transmissions - Zig-Bee
Classification code:821.6 Farm Buildings and Other Structures - 732 Control Devices - 731.1 Control Systems - 731 Automatic Control Principles and Applications - 723.4.1 Expert Systems - 723.2 Data Processing and Image Processing - 722.4 Digital Computers and Systems - 722.3 Data Communication, Equipment and Techniques - 716.3 Radio Systems and Equipment - 483.1 Soils and Soil Mechanics - 471.1 Oceanography, General - 444 Water Resources - 402.1 Industrial and Agricultural Buildings
DOI:10.3969/j.issn.1002-6819.2010.03.033
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 33>
Accession number:20102012932355
Title:Slope erosion process tracing in simulated raining with rare earth elements
Authors:Zheng, Liangyong (1); Li, Zhanbin (1); Li, Peng (4); Song, Wei (3); Liu, Puling (1)
Author affiliation:(1) State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences, Yangling 712100, China; (2) Institute of Soil and Water Conservation, Northwest Agriculture and Forest University, Yangling 712100, China; (3) Shandong Survey and Design Institute of Conservancy, Jinan 250013, China; (4) Institute of Water Resources and Hydro-electric Engineering, Xi'an University of Technology, Xi'an 710048, China
Corresponding author:Zheng, L.
      (zzllyysw@163.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:87-91
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:For studying the slope erosion type changing process, simulated rainfall was applied by placing rare earth elements on different soil depth across the slope. The results indicated that the main erosion type was sheet erosion in the beginning of rainfall, and serious erosion happened after rill erosion appeared. The percentage of sheet erosion to the whole erosion was about 30% and the percentage of rill erosion was about 70%. The erosion of the first layer was the biggest on unit depth, and then decreased with the depth of soil. Therefore, according to the changing trends of the sheet erosion contribute rate and the rill erosion contribute rate, the erosion on slope could be divided into three phases: main sheet erosion phase, rill erosion developing phase and rill erosion stabile phase. Therefore, REE-INAA method could accurately quantify the processes of soil erosion.
Number of references:16
Main heading:Soil conservation
Controlled terms:Rain - Rare earth elements - Rare earths - Soils
Uncontrolled terms:Changing trends - REE-INAA method - Rill erosion - Sheet erosion - Simulated rainfall - Slope erosion - Soil depth - Soil erosion - Three phasis
Classification code:443.3 Precipitation - 481.2 Geochemistry - 483.1 Soils and Soil Mechanics - 547.2 Rare Earth Metals - 804.2 Inorganic Compounds - 821.3 Agricultural Methods
DOI:10.3969/j.issn.1002-6819.2010.03.015
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 34>
Accession number:20102012932398
Title:Quality evaluation and parameter selection of maize by hot-air and vacuum drying
Authors:Zhang, Yurong (1); Zhou, Xianqing (1)
Author affiliation:(1) College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450052, China
Corresponding author:Zhou, X.
      (xianqingzh@haut.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:346-352
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:In order to reasonably evaluate the quality of maize after hot air and vacuum drying, the physical, physiological and biochemical quality parameters of maize dried by hot air and vacuum drying methods in different levels of drying strength were determined and analyzed. The quality evaluation parameters of dried maize were selected by using of the principle component analysis method. The results indicated that, to hot air drying, crack ratio was less than 35% when drying temperature was below 60&deg;C, drying rate was lower than 4.21%/h. Drying temperature of maize seed should under 45&deg;C. When drying temperature was above 75&deg;C, drying rate was higher than 4.56%/h, crack ratio increased rapidly, content of MDA and fatty acid value increased, but the activity of POD decreased. The higher the initial moisture of maize had, the larger drying strength influenced on quality parameters. To vacuum drying, crack ratio was less than 35% when drying temperature below 75&deg;C, drying rate lower than 5.56%/h, and the germination rate of maize had a less change under 45&deg;C. When drying temperature was above 75&deg;C, drying rate was higher than 5.56%/h, the activity of POD decreased, MDA, conductivity and fatty acid value increased, but the activity of POD decreased. By using of the principle component analysis method, the sensitive quality evaluation parameters of maize by hot air drying that were crack ratio, fatty acid value, the activity of POD, content of MDA and conductivity, while by vacuum drying were crack ratio, germination rate, activity of POD and conductivity. The comprehensive evaluation mode was erected, and it could fundamentally reflect maize drying quality.
Number of references:19
Main heading:Quality control
Controlled terms:Acids - Cracks - Crops - Curing - Drying - Fatty acids - Parameter estimation - Physiological models - Software architecture - Vacuum
Uncontrolled terms:Biochemical quality - Comprehensive evaluation - Drying quality - Drying rates - Drying temperature - Germination rates - Hot air - Hot air drying - Initial moisture - Maize  - Maize seeds - Parameter selection - Principle component analysis - Quality evaluation - Quality parameters - Vacuum drying
Classification code:802.3 Chemical Operations - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 913.3 Quality Assurance and Control - 804.1 Organic Compounds - 818.3 Rubber and Elastomer Processing - 821.4 Agricultural Products - 815.1 Polymeric Materials - 802.2 Chemical Reactions - 731.1 Control Systems - 421 Strength of Building Materials; Mechanical Properties - 461.1 Biomedical Engineering - 633 Vacuum Technology - 642.1 Process Heating - 723.1 Computer Programming - 723.5 Computer Applications
DOI:10.3969/j.issn.1002-6819.2010.03.058
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 35>
Accession number:20102012932372
Title:Analysis of hyperspectral singularity of rice under Zn pollution stress
Authors:Liu, Meiling (1); Liu, Xiangnan (1); Li, Ting (1); Xiu, Lina (1)
Author affiliation:(1) School of Information Engineering, China University of Geosciences, Beijing 100083, China
Corresponding author:Liu, X.
      (liuxncugb@163.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:191-197
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:The aim of this study is to detect the stress levels of rice under Zn pollution by analyzing the characteristics of hyperspectral singularity. Hyperspectral reflectance and heavy metal concentration from different growth stages of rice in two consecutive years were collected in the field experiment. Wavelet transform was performed to hyperspectral reflectance (350-1300 nm) by using "Daubechies 5" wavelet function, and three categories of singularity parameters as indicators of hyperspectral singularity of rice under Zn stress were explored, including singularity range (S<inf>R</inf>), singularity amplitude (S<inf>A</inf>) and singularity exponent (S<inf>E</inf>). The results showed that the wavelet coefficient of the fifth decomposition level of "Daubechies 5" wavelet function proved successful for accurately identifying the hyperspectral singularity of rice under Zn stress. S<inf>R</inf> of rice was concentrated on the region around 480-850 nm of spectral signal under Zn stress. Maximum value of S<inf>A</inf> occurred at the tillering stage, and the S<inf>A</inf> increased sharply from seeding stage to tillering stage and then decreased from jointing stage to anthesis stage and to mature stage, while the S<inf>E</inf> increased constantly from seeding stage to mature stage when rice was growing. Zn concentration in rice leaves had better linearity with the S<inf>A</inf> and S<inf>E</inf> with correlation coefficient (R²) of 0.8445 and root mean square error (RMSE) of 5.60. The hyperspectral singularity applying wavelet transform technique has been shown to indentify and quantitatively analyze the stress levels of rice under Zn pollution effectively and provide important reference for detecting other metal-induced stress on crop.
Number of references:28
Main heading:Discrete wavelet transforms
Controlled terms:Heavy metals - Metal analysis - Pollution detection - Reflection - Wavelet decomposition - Zinc
Uncontrolled terms:Daubechies - Daubechies 5 wavelet - Singularity parameters - Spectrscopy - Stress singularity parameters
Classification code:921.3 Mathematical Transformations - 801 Chemistry - 741.1 Light/Optics - 711 Electromagnetic Waves - 546.3 Zinc and Alloys - 531 Metallurgy and Metallography - 454.2 Environmental Impact and Protection
DOI:10.3969/j.issn.1002-6819.2010.03.032
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 36>
Accession number:20102012932390
Title:Factors influencing rural household energy consumption
Authors:Wang, Xiaohua (1); Hu, Xiaoyan (2)
Author affiliation:(1) College of Technology, Nanjing Agricultural University, Nanjing 210031, China; (2) Department of Marine Engineering, Jiangsu Maritime Institute, Nanjing 211170, China
Corresponding author:Wang, X.
      (xhwang@njau.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:294-297
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:To study factors influencing energy consumption of rural household in China, according to the analysis based on the investigation into the rural household energy consumption in Lianshui County, Jiangsu Province, there is a relatively high negative correlation between family population and per capita energy consumption. On the other hand, per capita energy consumption does not significantly correlate with hog population, per capita grain harvest or per capita income. Per capita electricity consumption is significantly correlated with per capita income. No evident correlation can be found between the proportion of commercial energy and per capita effective heat or per capita income. The model between per capita energy consumption and family population is established by non-linear regression. The model between per capita electricity consumption and per capita income is established by fitting the selected cubic functions. It provides data for studying household energy consumption features and exploiting recycling energy resources in China's rural areas.
Number of references:15
Main heading:Energy harvesting
Controlled terms:Energy resources - Rural areas
Uncontrolled terms:Commercial energy - Cubic function - Electricity-consumption - Energy consumption - Energy consumption model - Grain harvest - Household energy - Jiangsu province - Lianshui County - Negative correlation  - Non-linear regression - Per capita - Per capita income - Recycling energy - Rural household energy - Rural households
Classification code:403.2 Regional Planning and Development - 525.1 Energy Resources and Renewable Energy Issues - 525.5 Energy Conversion Issues - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 901.4 Impact of Technology on Society
DOI:10.3969/j.issn.1002-6819.2010.03.050
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 37>
Accession number:20102012932344
Title:Deposition law of sand in labyrinth-channel of emitter
Authors:Ge, Lingxing (1); Wei, Zhengying (1); Cao, Meng (1); Tang, Yiping (1); Lu, Bingheng (1)
Author affiliation:(1) State Key Laboratory for Manufacturing System Engineering, Xi'an Jiaotong University, Xi'an 710049, China
Corresponding author:Wei, Z.
      (zywei@mail.xjtu.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:20-24
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Aiming at studying the deposition law of sand in labyrinth channel, the authors analyzed the particle trajectory and deposition law of sands by Fluent software. The results showed that the restitution coefficients affected critical deposition coefficients greatly, and the velocity fields were similar while the pressures changed greatly in different units. The sand trajectories were the same in each unit with the same initial conditions, such as location, diameter, velocity and so on. It was also showed that the particle diameter was the most important factor affecting the deposition of sand and the pressure was another important factor. Deposition ratio was raised with the increase of particle diameter. And the higher the inlet pressure was, the lower the deposition ratio was. The research on the deposition law of sand in labyrinth-channel emitter is beneficial to understanding of clogging mechanism of emitters, and provides basis for anti-clogging structure design of emitters.
Number of references:16
Main heading:Deposition
Controlled terms:Irrigation - Machine design - Particle size - Sand - Trajectories
Uncontrolled terms:Clogging mechanism - Critical deposition coefficient - FLUENT software - Initial conditions - Inlet pressures - Particle diameters - Particle trajectories - Restitution coefficient - Restitution coefficients - Structure design  - Velocity field
Classification code:931.2 Physical Properties of Gases, Liquids and Solids - 821.3 Agricultural Methods - 813.1 Coating Techniques - 802.3 Chemical Operations - 655.2 Satellites - 943.2 Mechanical Variables Measurements - 654.1 Rockets and Missiles - 539.3 Metal Plating - 505 Mines and Mining, Nonmetallic - 483.1 Soils and Soil Mechanics - 404.1 Military Engineering - 601 Mechanical Design
DOI:10.3969/j.issn.1002-6819.2010.03.004
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 38>
Accession number:20102012932371
Title:Red edge characteristics and monitoring SPAD and LAI for rice with high temperature stress
Authors:Xie, Xiaojin (1); Shen, Shuanghe (1); Li, Yingxue (1); Li, Bingbai (2); Cheng, Gaofeng (2); Yang, Shenbin (1)
Author affiliation:(1) College of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China; (2) Institute of Agricultural Resource and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
Corresponding author:Li, B.
      (bbli88@163.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:183-190
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:For promoting the application of hyper-spectral technique on growth monitoring and disease evaluation in rice, the high-temperature stress experiments for two rice cultivars Yangdao 6 and Nanjing 43 were conducted in this paper, and canopy hyper-spectral reflectance, red edge parameters, soil and plant analyzer development (SPAD) value and leaf area index (LAI) of two rice cultivars at different growth stages were measured under high-temperature stress on booting stage. The results showed that SPAD value and LAI of two rice cultivars presented a tendency from rising to falling with development of growth stages, wherein both of them were up to peak value on flowering stage and turned lower value on early heading and ripening stages. The SPAD value and LAI would be reduced with the elevation of stress temperature. There were 'red shift' phenomena before flowering and 'blue shift' phenomena after flowering for the red edge position, red edge slope and red edge area of canopy spectrum. With the elevation of stress temperature, the 'blue shift' phenomena were also presented for those three red edge parameters. The SPAD value and LAI of rice flag leaves at different growth stages were significantly or very significantly correlative to the red edge feature variables. Therefore, the model based on red edge position could be more reliable for predicting SPAD value and LAI of rice flag leaves compared with red edge slope.
Number of references:22
Main heading:Spectrum analysis
Controlled terms:Interferometry - Plants (botany) - Remote sensing - Spectrum analyzers
Uncontrolled terms:Blue shift - Canopy spectrum - Flowering stage - Growth monitoring - Growth stages - High temperature stress - HyperSpectral - Leaf area index - Model-based - Nanjing  - Peak values - Red edge - Red edge characteristic - Red edge parameters - Red edge position - Red shift - Rice cultivars - Stress temperature
Classification code:944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments - 943 Mechanical and Miscellaneous Measuring Instruments - 942 Electric and Electronic Measuring Instruments - 941.4 Optical Variables Measurements - 941 Acoustical and Optical Measuring Instruments - 922.2 Mathematical Statistics - 921 Mathematics - 731.1 Control Systems - 461.9 Biology
DOI:10.3969/j.issn.1002-6819.2010.03.031
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 39>
Accession number:20102012932354
Title:Effect of irrigation with reclaimed water on quality and yield of winter wheat and summer corn
Authors:Liu, Honglu (1); Ma, Fusheng (1); Xu, Cuiping (1); Wu, Wenyong (1); Yang, Shengli (1); Ma, Zhijun (1)
Author affiliation:(1) Beijing Hydraulic Research Institute, Beijing 100048, China
Corresponding author:Liu, H.
      (liuhonglu@yeah.net)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:82-86
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:For ensuring safe reuse of reclaimed water irrigation (RWI), the effect of irrigation with reclaimed water on quality and yield of winter wheat and summer corn was researched. The experimental results showed that the yields of winter wheat and summer corn which irrigated with reclaimed water increased by 6.49% and 5.42%, respectively, compared with those of freshwater irrigation treatment. There was no significant difference between reclaimed water irrigation treatment and freshwater irrigation treatment (&alpha;=0.05). The crude protein content, soluble sugar content, crude ash, crude starch and reduced vitamin C content had little varied, but showed no consistent trend for reclaimed water irrigation. The main quality indexes of winter wheat and summer corn with reclaimed water irrigation had not been significantly influenced (&alpha;=0.05). The total nitrogen content in grains of winter wheat, total nitrogen and total phosphorus contents in grains of summer corn were increased slightly, but the total phosphorus and total potassium contents in grains of winter wheat, total potassium content in grains of summer corn had no significant variation with reclaimed water irrigation.
Number of references:22
Main heading:Wastewater reclamation
Controlled terms:Grain (agricultural product) - Irrigation - Phosphorus - Potassium - Sugar (sucrose) - Wastewater - Water conservation - Water content - Water recycling - Water resources  - Water treatment
Uncontrolled terms:Crude proteins - Irrigation treatments - Quality - Quality indices - Re-claimed water - Soluble sugars - Total nitrogen - Total nitrogen content - Total phosphorus - Vitamin C  - Winter wheat
Classification code:821.4 Agricultural Products - 821.3 Agricultural Methods - 804 Chemical Products Generally - 549.1 Alkali Metals - 454.2 Environmental Impact and Protection - 822.3 Food Products - 453.2 Water Pollution Control - 452.3 Industrial Wastes - 445.1 Water Treatment Techniques - 444 Water Resources - 403.1 Urban Planning and Development - 452.4 Industrial Wastes Treatment and Disposal
DOI:10.3969/j.issn.1002-6819.2010.03.014
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 40>
Accession number:20102012932349
Title:Relationship between soil salt dynamics and factors of water balance in the typical coastal area of Northern Jiangsu Province
Authors:Zhao, Xiufang (1); Yang, Jinsong (1); Yao, Rongjiang (1)
Author affiliation:(1) Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
Corresponding author:Yang, J.
      (jsyang@issas.ac.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:52-57
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:For the sake of identifying the dynamic behaviors of soil water and salt, and then providing a theoretical basis for the strategies of water saving irrigation and farm water management in the coastal area of North Jiangsu Province, a long-term and continuous monitoring of soil water content, soil salt content and groundwater level was conducted in the typical coastal area of Dafeng City, Jiangsu Province. The relationships between soil salt dynamics and factors of waters balance were discussed according to the data monitored and those (precipitation, soil surface evapotranspiration data) provided by weather station in Dafeng City. The results showed that soil salt of surface layer was highest and its salt fluctuation was most activated, and soil salt gradually decreased with depth. Soil water content and groundwater level were increased in summer due to rich precipitation and little evapotranspiration, while decreased in winter due to little precipitation and plenty evapotranspiration. The salt in groundwater was the main source of salt accumulation in the profile. Groundwater level and water complement amount were the main impact factors of soil salt at 0-40 cm depth. Groundwater level and evapotranspiration were the main impact factors of soil salt at 60-80 cm depth. The desalting role caused by precipitation significantly affected the soil at 0-40 cm depth, while the salt accumulation role induced by evapotranspiration affected the soil in the profile. The study provides scientific basis for the recede of soil salinization in the coastal area of North Jiangsu Province, and possesses great significance in directing local agricultural production.
Number of references:16
Main heading:Precipitation (chemical)
Controlled terms:Agriculture - Coastal engineering - Coastal zones - Desalination - Evapotranspiration - Groundwater - Indexing (of information) - Moisture determination - Salts - Soil moisture  - Underwater soils - Water conservation - Water content - Water management - Water supply
Uncontrolled terms:Agricultural productions - Coastal area - Continuous monitoring - Dynamic behaviors - Factors of water balance - Ground water level - Impact factor - Jiangsu province - Precipitation - Soil salinization  - Soil salt content - Soil surfaces - Soil water - Soil water content - Surface layers - Theoretical basis - Water balance - Water-saving irrigation - Weather stations
Classification code:471.4 Seawater, Tides and Waves - 483.1 Soils and Soil Mechanics - 802.3 Chemical Operations - 804.1 Organic Compounds - 804.2 Inorganic Compounds - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 901.4 Impact of Technology on Society - 903.1 Information Sources and Analysis - 944.2 Moisture Measurements - 471.1 Oceanography, General - 403.1 Urban Planning and Development - 407.3 Coastal Engineering - 444 Water Resources - 444.1 Surface Water - 444.2 Groundwater - 445.1 Water Treatment Techniques - 446 Waterworks - 446.1 Water Supply Systems - 471 Marine Science and Oceanography
DOI:10.3969/j.issn.1002-6819.2010.03.009
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 41>
Accession number:20102012932399
Title:Thermal degradation dynamic model of vitamin C in cloudy strawberry juice during storage
Authors:Wang, Mengze (1); Xue, Shaoping (1); Wang, Jia (2); Yan, Qinlao (1)
Author affiliation:(1) College of Mechanical and Electronic Engineering, Northwest Agriculture and Forestry University, Yangling 712100, China; (2) College of Horticulture, Northwest Agriculture and Forestry University, Yangling 712100, China
Corresponding author:Yan, Q.
      (yanqinlao@yahoo.com.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:353-357
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:In order to clarify the influence of storing temperature on degeneration of the vitamin C in cloudy strawberry juice, its degeneration dynamic model was established, and the foundation for cloudy strawberry storing was provided. The relationiships among storage temperature, storage time and degradation of ascorbic acid (AA) and dehyd roascorbic acid (DHAA) in the process of cloudy strawberry juice storage were analyzed, and the degradadion dynamic model of ascorbic acid and dehydroascorbic acid was established. Results show that ascorbic acid and dehydroascorbic acid of cloudy strawberry juice in the storage process are unstable to the heat treatment; the degradation of ascorbic acid and dehydroascorbic acid accords with first-order dynamic, which indicates that this degeneration dynamic model is logical and effective, and can be used in selection of storing temperature and prediction of storage period at different temperatures.
Number of references:15
Main heading:Dynamic models
Controlled terms:Activation energy - Degradation - Fruits - Ketones - Organic acids - Plasmas - Thermogravimetric analysis
Uncontrolled terms:Ascorbic acids - Degradation dynamics - Dehydroascorbic acid - First-order - Storage periods - Storage temperatures - Storage time - Strawberry juice - Thermal degradations - Vitamin C
Classification code:931.3 Atomic and Molecular Physics - 921 Mathematics - 821.4 Agricultural Products - 932.3 Plasma Physics - 804.1 Organic Compounds - 801.4 Physical Chemistry - 801 Chemistry - 802.2 Chemical Reactions
DOI:10.3969/j.issn.1002-6819.2010.03.059
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 42>
Accession number:20102012932343
Title:Hydraulic characteristics of sheet flow with slope runoff regulation
Authors:Wu, Shufang (1); Wu, Pute (1); Yuan, Lifeng (2)
Author affiliation:(1) Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Northwest Agriculture and Forestry University, Yangling 712100, China; (2) Nanjing Institute of Geography and Limnology, China Academy of Sciences, Nanjing 210008, China; (3) State Key Lab of Soil Erosion and Dryland Agriculture, Chinese Academy of Sciences, Yangling 712100, China
Corresponding author:Wu, P.
      (gjzwpt@vip.sina.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:14-19
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:In order to clarify the process of runoff movement under the complex surface conditions and the effect of flow and surface conditions on hydraulics parameters, the authors studied the hydraulic properties of shallow flow with different runoff by use of the field scouring experiments in the standard plots in this study. Thereinto, regulating measurers included the treatments of fish-scale pit, alfalfa grass, straw mulch and control, and hydraulic properties included flow velocity, flow depth, flow regimes and the resistance coefficient. The results indicated that the mean flow velocity and depth were mainly controlled by the slope runoff discharge, and there was also a power function relationship among mean velocity, depth and discharge. The slope flow regime was directly influenced by surface conditions and flow discharge. For the naked slope plot (control) and fish-scale pit plot, flow regimes were laminar flow and subcritical flow under the lesser discharge, and transitional flow under the discharge of 3.0 m3/h. For alfalfa grass plot and straw mulch plot, flow regimes were laminar flow and subcritical flow. The resistance coefficient on complex slope consists of granule resistance, configuration resistance and wave resistance and it was mainly influenced by the surface conditions. In a word, the capability of resisting soil erosion and sediment movement was stronger than the control whatever on grass and straw mulch slope or on the slope with fish-scale pits. At the same time, the measured slope had a function of slower runoff velocity and higher flow resistance. The results provide an important theoretical basis and practical significance on reveal erosion dynamic mechanism and the process of intercepting sediment and reducing runoff in the different measures treatments in the slope.
Number of references:18
Main heading:Experiments
Controlled terms:Flow velocity - Hydraulics - Laminar flow - Runoff - Sedimentology - Soils - Velocity
Uncontrolled terms:Alfalfa grass - Complex slopes - Complex surface - Erosion dynamics - Flow depth - Flow discharges - Flow regimes - Flow resistance - Hydraulic characteristic - Hydraulic properties  - Mean flow velocities - Mean velocities - Power functions - Resistance coefficients - Runoff velocity - Scouring experiments - Sediment movement - Shallow flow - Sheet flow - Sheetflows  - Slope flow - Slope plot - Slope runoff - Soil erosion - Standard-plot - Straw mulch - Subcritical flow - Surface conditions - Theoretical basis - Transitional flow  - Wave resistance
Classification code:931.1 Mechanics - 901.3 Engineering Research - 632.1 Hydraulics - 631.1 Fluid Flow, General - 943.2 Mechanical Variables Measurements - 631 Fluid Flow - 481.1 Geology - 444.1 Surface Water - 442.1 Flood Control - 483.1 Soils and Soil Mechanics
DOI:10.3969/j.issn.1002-6819.2010.03.003
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 43>
Accession number:20102012932379
Title:Applicability evaluation of CERES-Wheat model and yield prediction of winter wheat
Authors:Wang, Wei (1); Huang, Yide (1); Huang, Wenjiang (2); Li, Cunjun (2); Wang, Xian (2)
Author affiliation:(1) College of Agriculture, Anhui Agricultural University, Hefei 230061, China; (2) National Engineering Research Center for Information Technology in Agriculture, Beijing 100097, China
Corresponding author:Huang, Y.
      (yidehuang@126.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:233-237
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:The aim of this study was to research the applicability of the CERES-Wheat Model and to use the model to predict the winter wheat yield. Based on the parameters calibrated correctly, constant 3a experimental data has been used for evaluation. After input 2007-2008 weather data of DAVIS station, the model predicted that the yield of winter wheat in 2008 was 6000 kg/hm². Then CERES-Wheat Model simulated and observed results (including the phonological dates, LAI and the yield)was compared. The final results showed that the deviation of simulated and observed anthesis dates was less than 6 days, the deviation of simulated and observed maturity dates was less than 5 days, simulated LAI and yield were higher than field-observed results, while the deviation of yield prediction was less than 10%. So the applicability of CERES-Wheat Model in Beijing is good and the model can be a useful research tool for yield forecast in agriculture.
Number of references:19
Main heading:Computer simulation
Controlled terms:Crops - Error analysis - Weather forecasting
Uncontrolled terms:Applicability evaluation - CERES-Wheat - Error analysis model - Experimental data - Research tools - Weather data - Winter wheat - Yield prediction
Classification code:443 Meteorology - 723.5 Computer Applications - 821.4 Agricultural Products - 921.6 Numerical Methods
DOI:10.3969/j.issn.1002-6819.2010.03.039
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 44>
Accession number:20102012932346
Title:Influence of planting hole control body on water movement of saline soil
Authors:Wen, Kejun (1); Yang, Xu (1); Wu, Liping (1)
Author affiliation:(1) Department of Environmental and Municipal Engineering, Tianjin Institute of Urban Construction, Tianjin 300384, China
Corresponding author:Yang, X.
      (yangxu1009@163.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:32-37
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:In order to make a plant hole into a basic unit to regulate soil water movement, improve the forestation survival rate and land-using value of saline soil, the authors selected structure factors (including woody plant, material used for planting-hole bag, dispensation radio of membrane material, dispensation radio and thickness of filling material) of planting hole control body (PHCB) and environment factors (including groundwater mineralization, soil texture and supplementary water capacity) as influencing factors, combined microcosm experiment technology, and used a hybrid homogeneous design U<inf>12</inf> (12&times;4³&times;3⁴) to arrange the experiments for obtaining the optimal configuration parameters and establishing a predictive equation which could show the relationships between influencing factors and soil moisture. The results of regression analysis indicated that: on condition that the supplementary water capacity was up to 5.06 mm, and light clay soil as soil texture, prunus cerasifera as woody plant, linen used for material of the plant hole, membrane material made of PVA (polyvinyl alcohol), VAE (vinyl acetate-ethylene copolymer emulsion) and montmorillonite with volume ratio of 100:20:10, and filler made from straw, litter and wood chips with mass ratio of 1:1:2, soil moisture could be increased 48.83% inside the planting hole. While the groundwater mineralization and thickness of filler material were not significant influences on water movement in the plant hole. PHCB is able to be used to regulate the process of soil water movement effectively, which is a method for ecological restoration of saline soil.
Number of references:18
Main heading:Saline water
Controlled terms:Agriculture - Clay - Clay minerals - Coastal engineering - Coastal zones - Ecology - Emulsification - Ethylene - Fillers - Filling  - Groundwater - Materials - Metal analysis - Mineralogy - Moisture control - Moisture determination - Organic polymers - Polyvinyl acetates - Regression analysis - Restoration  - Silicate minerals - Soil moisture - Statistics - Textures - Underwater soils - Wood products
Uncontrolled terms:A plants - AS-soils - Clay soil - Ecological restoration - Filler materials - Filling materials - Influencing factor - Mass ratio - Membrane material - Microcosm  - Microcosm experiments - Optimal configurations - Planting hole control body (PHCB) - Predictive equations - Process of soil - Saline soil - Soil textures - Soil water movement - Structure factors - Survival rate  - Vinyl acetate-ethylene - Volume ratio - Water capacity - Water movements - Wood chip - Woody plants
Classification code:811.2 Wood and Wood Products - 804.2 Inorganic Compounds - 804.1 Organic Compounds - 803 Chemical Agents and Basic Industrial Chemicals - 802.3 Chemical Operations - 801 Chemistry - 951 Materials Science - 812.1 Ceramics - 944.2 Moisture Measurements - 933 Solid State Physics - 922.2 Mathematical Statistics - 913.5 Maintenance - 901.4 Impact of Technology on Society - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 815.1.1 Organic Polymers - 731.3 Specific Variables Control - 691.2 Materials Handling Methods - 444.2 Groundwater - 444 Water Resources - 414.2 Brick Materials - 409 Civil Engineering, General - 407.3 Coastal Engineering - 402 Buildings and Towers - 454.3 Ecology and Ecosystems - 471.1 Oceanography, General - 482 Mineralogy - 482.2 Minerals - 483.1 Soils and Soil Mechanics - 531 Metallurgy and Metallography - 471 Marine Science and Oceanography
DOI:10.3969/j.issn.1002-6819.2010.3.006
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 45>
Accession number:20102012932397
Title:Effects of gas-exhausting type and gas-charging pressure on gas replacement properties for modified atmosphere packaging with trays
Authors:Lu, Lixin (1); Liu, Lin (1)
Author affiliation:(1) Department of Packaging Engineering, Jiangnan University, Wuxi 214122, China; (2) Key Laboratory of Food Packaging Techniques and Safety, China National Packaging Corporation, Wuxi 214122, China
Corresponding author:Lu, L.
      (lulx@jiangnan.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:341-345
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Gas replacement device is one of the key parts for modified atmosphere packaging (MAP) machine. It is meaningful for investigation and optimization design of the gas replacement device by computer to simulate the gas flow field under different gas-exhausting types and gas-charging pressures. A physical model of MAP with trays was established to analyze gas replacement process depending on the gas replacement mechanism. The RNG &kappa;-&Epsilon; turbulence mode was used to establish the three-dimension turbulent gas flow field during the gas exchange process. With the equivalent area, effect of the gas-exhausting type on gas replacement properties was analyzed, the optimum layout of exhausting mode was determined, and then an appropriate working range of gas-charging pressure was acquired. For three gas-exhausting types, the difference of gas replacement properties was no notable within the vacuum degree range of 0.04-0.1 MPa. Along with the decrease of vacuum degree, the gas-exhausting type of centre hole possessed the best properties. For the exhausting type of centre hole and gas-charging of four holes around the centre hole, the high precision and efficiency of gas replacement could be obtained above 0.5 MPa of the gas-charging pressure.
Number of references:15
Main heading:Gases
Controlled terms:Aerodynamics - Computer crime - Computer simulation - Flow fields - Flow of gases - Mass transfer - Packaging - Pressure effects - Pumps - Vacuum
Uncontrolled terms:Gas exchange process - Gas flow field - High precision - Key parts - Modified atmosphere packaging - Numerical simulation - Optimization design - Optimum layout - Physical model - Three gas  - Vacuum degree - Working range
Classification code:931.1 Mechanics - 902.3 Legal Aspects - 723.5 Computer Applications - 723 Computer Software, Data Handling and Applications - 694.1 Packaging - 931.2 Physical Properties of Gases, Liquids and Solids - 651.1 Aerodynamics, General - 633 Vacuum Technology - 631.1.2 Gas Dynamics - 631.1 Fluid Flow, General - 618.2 Pumps - 641.3 Mass Transfer
DOI:10.3969/j.issn.1002-6819.2010.03.057
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 46>
Accession number:20102012932368
Title:Design and implementation of remote sensing system for monitoring crop plant area
Authors:Hu, Tan'gao (1); Zhang, Jinshui (1); Ma, Weifeng (1); Pan, Yaozhong (1); Sun, Guannan (1)
Author affiliation:(1) State Key Laboratory of Earth Surface Processes and Resource Ecology, College of Resource Science and Technology, Beijing Normal University, Beijing 100875, China
Corresponding author:Zhang, J.
      (zhangjsh@ires.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:163-170
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Timely and accurate major crop plant area data has a great significance to the relevant departments and the development of agricultural production and rural policy. In this view, designing and implementation of crop plant area monitoring system based on NET is necessary. The system uses three-tier C/S framework model, for scientific and advanced remote sensing techniques and statistical sampling techniques as the support, it can realize many functions such as the remote sensing image pre-processing, crop plant area monitoring, mass remote sensing data management, production web publishing and so on. The rigorous system testing and operation has been conducted, which proved that the system was stable and efficiency. It can be concluded that such system is widely useful for the relevant departments about agricultural statistics with timely data for decision-making support information.
Number of references:15
Main heading:Crops
Controlled terms:Data communication systems - Electronic publishing - Image reconstruction - Metadata - Monitoring - Remote sensing - Sampling
Uncontrolled terms:Agricultural productions - Area monitoring - Component development - Crop plants - Decision making support - Framework models - Plant area - Production WEB - Remote sensing data - Remote sensing images  - Remote sensing system - Remote sensing techniques - Spatial sampling - Statistical sampling - System testing - System use
Classification code:903.2 Information Dissemination - 913.3 Quality Assurance and Control - 922.1 Probability Theory - 821.4 Agricultural Products - 941 Acoustical and Optical Measuring Instruments - 943 Mechanical and Miscellaneous Measuring Instruments - 944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments - 942 Electric and Electronic Measuring Instruments - 801 Chemistry - 717 Optical Communication - 718 Telephone Systems and Related Technologies; Line Communications - 723 Computer Software, Data Handling and Applications - 716 Telecommunication; Radar, Radio and Television - 723.2 Data Processing and Image Processing - 731.1 Control Systems - 741 Light, Optics and Optical Devices - 723.5 Computer Applications
DOI:10.3969/j.issn.1002-6819.2010.03.028
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 47>
Accession number:20102012932367
Title:Design and implementation of remote sensing image-based crop growth monitoring system
Authors:Jiang, Xiaojian (1); Liu, Xiaojun (1); Tian, Yongchao (1); Jiang, Haiyan (1); Cao, Weixing (1); Zhu, Yan (1)
Author affiliation:(1) Jiangsu Key Laboratory for Information Agriculture, Nanjing Agricultural University, Nanjing 210095, China
Corresponding author:Zhu, Y.
      (yanzhu@njau.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:156-162
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Quick and real-time monitoring of crop growth status based on remote sensing can support the decision-making on precision crop management. Based on growth estimating models in wheat and rice established by the authors' group, a RS image-based monitoring system was developed based on the Microsoft. NET framework using GDAL and GDI+ as information processing methods and EM algorithm for classifying crop growth indices. This system realized the multiple functions as accessing the RS images with common formats, extracting crop information, inverting growth indices, clustering analysis, generating the thematic map and issuing the information with remote sensing technology. Several functions of the system were tested using the RS images at Fangqiang Farm, Jiangsu Province. The results showed that the system could effectively read general remote sensing images, invert the crop growth indices, classify the crop growth information based on the cluster models, interact with users for generating the thematic map of crop growth status, and issue the RS image information rapidly via internet. The present system has overcome the previous weakness that the ordinary users could not directly participate in the process of RS images analysis, and can help to monitor the crop growth condition and provide decision support for precision crop management at regional scale.
Number of references:31
Main heading:Crops
Controlled terms:Algorithms - Cluster analysis - Data processing - Decision making - Decision support systems - Image reconstruction - Maps - Monitoring - Rapid solidification - Remote sensing
Uncontrolled terms:Cluster models - Clustering analysis - Common format - Crop growth - Crop growth condition - Crop managements - Decision supports - EM algorithms - Growth monitoring - Information processing  - Inversion - Jiangsu province - Microsoft .NET - Monitoring system - Multiple function - Real time monitoring - Regional scale - Remote sensing images - Remote sensing technology - RS image
Classification code:944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments - 902.1 Engineering Graphics - 912.2 Management - 921 Mathematics - 922 Statistical Methods - 933 Solid State Physics - 941 Acoustical and Optical Measuring Instruments - 942 Electric and Electronic Measuring Instruments - 943 Mechanical and Miscellaneous Measuring Instruments - 821.4 Agricultural Products - 405.3 Surveying - 531 Metallurgy and Metallography - 537.1 Heat Treatment Processes - 802.3 Chemical Operations - 723 Computer Software, Data Handling and Applications - 731.1 Control Systems - 741 Light, Optics and Optical Devices - 723.2 Data Processing and Image Processing
DOI:10.3969/j.issn.1002-6819.2010.03.027
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 48>
Accession number:20102012932361
Title:Method of measuring grain-flow of combine harvester based on weighing
Authors:Zhang, Xiaochao (1); Hu, Xiaoan (1); Zhang, Aiguo (1); Zhang, Yinqiao (1); Yuan, Yanwei (1)
Author affiliation:(1) Chinese Academy of Agricultural Mechanization Sciences, Beijing 100083, China
Corresponding author:Zhang, X.
      (zxc@caams.org.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:125-129
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:For precision agriculture information technology, a method based on the weighing was put forward to get grain yield distribution information. According to grain transmission characteristics of traditional combines, a flow sensor by spiral propulsion and weighing device was studied. The problem of measurement device power directly transmiting and effective signal detecting was solved with this method. Using the wavelet filter short-term treatment with real-time measuring data, combined with GPS positioning information, dynamic measurement of combines grain flow and the grain yield distribution information were realized. Test results show that the bench test error is less than 2%. Test shows that grain yield distritubion information can be gotten by this method.
Number of references:13
Main heading:Grain (agricultural product)
Controlled terms:Agriculture - Combines - Global positioning system - Harvesters - Machinery - Sensors - Wavelet analysis - Wavelet transforms - Weighing
Uncontrolled terms:Bench tests - Combine harvesters - Dynamic measurement - Flow sensor - Flow-sensors - GPS positioning - Grain flow - Grain yield - Measurement device - Measuring data  - Precision Agriculture - Test results - Transmission characteristics - Wavelet filters - Weighing devices
Classification code:943.3 Special Purpose Instruments - 921.3 Mathematical Transformations - 921 Mathematics - 821.4 Agricultural Products - 821.1 Agricultural Machinery and Equipment - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 801 Chemistry - 732.2 Control Instrumentation - 723.2 Data Processing and Image Processing - 716.3 Radio Systems and Equipment - 703.2.1 Electric Filter Analysis - 655.2.1 Communication Satellites - 601 Mechanical Design
DOI:10.3969/j.issn.1002-6819.2010.03.021
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 49>
Accession number:20102012932351
Title:Green-Ampt model of different infiltration heads
Authors:Guo, Xianghong (1); Sun, Xihuan (1); Ma, Juanjuan (1); Bi, Yuanjie (1)
Author affiliation:(1) College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Corresponding author:Sun, X.
      (sunxihuan@tyut.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:64-68
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:During irrigation process, the soil structure of infiltration interface is changed with infiltration head increasing in water storage pit, which results in changing of soil water infiltration characteristics. In order to simulate the infiltration process of different infiltration heads, the improved Green-Ampt model of different infiltration heads was established based on mechanism of soil infiltration in different infiltration heads. Effect of infiltration head on infiltration was reflected by the generalized saturated hydraulic conductivity. A series of experiments were conducted to verify the improved Green-Ampt model of different infiltration heads. The computational infiltration rate derived from the improved Green-Ampt model was in accordance with the experimental results under different infiltration heads. They indicate that the improved Green-Ampt model can effectively simulates infiltration process of different infiltration heads.
Number of references:19
Main heading:Soil mechanics
Controlled terms:Geologic models - Hydraulic conductivity - Irrigation - Seepage - Soil moisture - Underwater soils
Uncontrolled terms:Green-Ampt model - Infiltration process - Infiltration rate - Saturated hydraulic conductivity - Soil infiltration - Soil structure - Soil water - Water storage
Classification code:821.3 Agricultural Methods - 632.1 Hydraulics - 483.1 Soils and Soil Mechanics - 481.1 Geology - 471.1 Oceanography, General - 441 Dams and Reservoirs; Hydro Development - 407 Maritime and Port Structures; Rivers and Other Waterways
DOI:10.3969/j.issn.1002-6819.2010.03.011
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 50>
Accession number:20102012932381
Title:Fingerprint identification method of Pu'er raw tea based on high performance liquid chromatography profiles
Authors:Ning, Jingming (1); Zhang, Zhengzhu (1); Gu, Xungang (1); Wan, Xiaochun (1); Sun, Wentong (2)
Author affiliation:(1) Key Laboratory of Tea and Medicinal Plant and Product Safety, Ministry of Agriculture, Hefei 230036, China; (2) Yunnan Provincial Supervision and Test Center for Products Quality, Kunming 650223, China
Corresponding author:Wan, X.
      (xcwan@ahau.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:243-248
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Different recognition methods of the fingerprint for solar dried Pu'er raw tea was investigated based on their high performance liquid chromatography (HPLC) profiles, in order to identify Pu'er raw tea from different places. Similarity of the fingerprint was calculated by comparing their HPLC profiles using three methods, namely correlation coefficient, angle cosine and overlap rate, respectively. Based on the digitalized fingerprint, tea samples were systematically clustered. The main components of 18 tea samples were analyzed, in which the former two main components were employed to plot a two-dimensional scatter map. The results showed that each of the three employed methods could reflect the similarity of the fingerprint accurately, by which solar dried Pu'er raw tea could be well identified from green tea. Although the component of tea sample is complicated and the main component is rich, the selected seven main components contributed 88.61% of the total. Solar dried Pu'er raw tea samples could be distinguished obviously from green tea samples by using method of either systematic clustering or two-dimensional map. The recognition modes described could not only provide an identification method for fingerprints, but also provide an experimental foundation for quality control of raw material for Pu'er tea.
Number of references:15
Main heading:High performance liquid chromatography
Controlled terms:Agricultural products - Chromatography - Customer satisfaction - Identification (control systems) - Liquids - Plutonium - Process control - Process engineering - Quality assurance - Total quality management  - Two dimensional
Uncontrolled terms:Correlation coefficient - Fingerprint - Fingerprint identification - Green tea - Identification method - Main component - Overlap rate - Pu'er raw tea - Recognition methods - Tea samples  - Two-dimensional map
Classification code:931.2 Physical Properties of Gases, Liquids and Solids - 902.1 Engineering Graphics - 912 Industrial Engineering and Management - 912.2 Management - 913.1 Production Engineering - 913.3 Quality Assurance and Control - 922.2 Mathematical Statistics - 821.4 Agricultural Products - 801 Chemistry - 731.1 Control Systems - 731 Automatic Control Principles and Applications - 723.5 Computer Applications - 622.1 Radioactive Materials, General - 802.3 Chemical Operations
DOI:10.3969/j.issn.1002-6819.2010.03.041
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 51>
Accession number:20102012932378
Title:Establishment of information cooperative service system of dairy industry based on process ontology
Authors:Xu, Yong (1); Gan, Guohui (1); Niu, Fangqu (1); Wang, Zhiqiang (1); Wang, Jian (2)
Author affiliation:(1) Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; (2) National Engineering Research Center for Information Technology in Agriculture, Beijing 100097, China
Corresponding author:Xu, Y.
      (xuy@igsnrr.ac.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:227-232
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Cooperative service of agricultural information (CSAI) is now becoming an important aspect of agriculture informatization. More and more attention has been paid to CSAI in the domain of agriculture informatization. Ontological concept into agricultural production and operation process (APOP) were introduced in the paper. Based on a few concepts concerned with CSAI, the division of the production and operation phase of dairy industry were studied and established, the corresponding information unit was built, and the process ontology of dairy industry and the business chain model (BCM) was constructed. Based on BCM, the framework of the cooperative service system of dairy industry information was set up, and the service functions in a prototype system was then realized. The result shows that the agricultural process ontology (APO) on the biological characteristics has its own obvious advantages as a classification standard of agricultural information; the business chain model based on APO could effectively deal with the optimal operation and the cooperative service mechanism of agricultural information. The cooperative service of search engine and agricultural web-site was achieved.
Number of references:23
Main heading:Ontology
Controlled terms:Agricultural engineering - Agriculture - Dairies - Dairy products - Information retrieval - Information services - Information systems - Search engines - World Wide Web
Uncontrolled terms:Agricultural process - Agricultural productions - Biological characteristic - Business-chain - Classification standard - Dairy industry - Information systems ontologies - Informatization - Operation phase - Operation process  - Optimal operation - Process ontologies - Prototype system - Service functions - Service mechanism - Service systems
Classification code:903.4 Information Services - 903.3 Information Retrieval and Use - 903.2 Information Dissemination - 903 Information Science - 822.3 Food Products - 822.1 Food Products Plants and Equipment - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 723.5 Computer Applications - 723 Computer Software, Data Handling and Applications - 718 Telephone Systems and Related Technologies; Line Communications - 717 Optical Communication - 716 Telecommunication; Radar, Radio and Television - 402.1 Industrial and Agricultural Buildings
DOI:10.3969/j.issn.1002-6819.2010.03.038
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 52>
Accession number:20102012932394
Title:Evaluation of land eco-security based on matter element analysis
Authors:Huang, Huiling (1); Luo, Wenbin (1); Wu, Cifang (1); Li, Dongmei (2)
Author affiliation:(1) College of Southeast Land Management, Zhejiang University, Hangzhou 310029, China; (2) College of Civil Engineering and Architecture, Heilongjiang Institute of Science and Technology, Harbin 150027, China
Corresponding author:Huang, H.
      (huanghuiling00@sina.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:316-322
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Focusing on the problems of information shield and subjectivity of the comprehensive index evaluation in China, this paper evaluated land eco-security with the theory of matter element analysis. After analyzed the concept of land eco-security, an index system was established based on Economy-Environment-Society framework and analytic hierarchy process (AHP). An integrated assessment model was constructed with the support of matter-element model. Then the assessment model was applied to Hebei Province. Consequently, the results indicated that the whole level of land eco-security in Hebei Province had been in improving trends that jumping to general security from critical security condition, so it was remarkable performance of environmental protection policy and measures in Hebei Province since 2004; and the indexes of cropland acreage per capita, consumption of farm pesticide and discharge standardized rate of industrial waste water were key factors limiting the level of land eco-security in Hebei Province. It is concluded that the matter element model can reveal different information of every single index, and matter element analysis is suitable for evaluating land eco-security.
Number of references:18
Main heading:Decision theory
Controlled terms:Hierarchical systems - Land use - Mathematical techniques - Sewage - Wastewater
Uncontrolled terms:Assessment models - Eco-security - Hebei Province - Index systems - Industrial wastewaters - Integrated assessment models - Key factors - Matter-element analysis - Matter-element model - Per capita
Classification code:961 Systems Science - 922.2 Mathematical Statistics - 921 Mathematics - 731.1 Control Systems - 453.1 Water Pollution Sources - 452.3 Industrial Wastes - 452.1 Sewage - 442.2 Land Reclamation - 403 Urban and Regional Planning and Development
DOI:10.3969/j.issn.1002-6819.2010.03.054
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 53>
Accession number:20102012932363
Title:Simulation of ABS hydraulic system and optimization of solenoid valve
Authors:Tao, Run (1); Zhang, Hong (1); Fu, Dechun (2); Xia, Qunsheng (3)
Author affiliation:(1) College of Vehicle and Traffic Engineering, China Agricultural University, Beijing 100083, China; (2) Jin Wan An Corporation, Beijing 100084, China; (3) College of Vehicle Engineering, Tsinghua University, Beijing 100084, China
Corresponding author:Zhang, H.
      (zhanghong-66@263.net)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:135-139
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:For improving the dynamic characteristics of the ABS (anti-lock braking system) solenoid valves, reducing the moving time and considering the influence of the hydraulic pressure in the braking process, the model of ABS hydraulic system was built by using AMESim software. Step-shaped braking pressure was measured by the ABS mixed simulation test-bed, and compared with the simulated results, which showed that the mean difference was less than 84000 Pa. Taking advantage of the tool optimization and setting the operating time of the solenoid valves as the target, solenoid valve of main parameters were optimized through the genetic algorithms, and operation time was 1.1 ms and 1.4 ms faster than before for the pressure valves and pressure reducing valves, respectively. The results that can provide reference for design and improvement of solenoid valve.
Number of references:14
Main heading:Solenoid valves
Controlled terms:Brakes - Genetic algorithms - Hydraulic equipment - Hydraulics - Optimization - Response time (computer systems) - Solenoids - Statistical tests
Uncontrolled terms:Anti-lock braking system hydraulic system - Antilock braking systems - Braking pressure - Braking pressure test - Hydraulic system - Response time
Classification code:921.5 Optimization Techniques - 921 Mathematics - 723 Computer Software, Data Handling and Applications - 722.4 Digital Computers and Systems - 922.2 Mathematical Statistics - 704.1 Electric Components - 632.1 Hydraulics - 619 Pipes, Tanks and Accessories; Plant Engineering Generally - 602 Mechanical Drives and Transmissions - 632.2 Hydraulic Equipment and Machinery
DOI:10.3969/j.issn.1002-6819.2010.03.023
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 54>
Accession number:20102012932347
Title:Simulation of stem diameter maximum daily shrinkage for peach under full irrigation
Authors:Zhang, Ping (1); Wang, Youke (2); Zhan, Jingwu (1); Zhang, Lujun (2)
Author affiliation:(1) Institute of Soil and Water Conservation, Chinese Academy of Sciences, Yangling 712100, China; (2) Institute of Soil and Water Conservation, Northwest Agriculture and Forestry University, Yangling 712100, China; (3) Graduate School, Chinese Academy of Sciences, Beijing 100049, China
Corresponding author:Wang, Y.
      (gjzwyk@vip.sina.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:38-43
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Field experiment was conducted by measuring the maximum daily shrinkage (MDS) and analyzing the relationships between MDS and reference evapotranspiration (ET<inf>0</inf>), net radiatio (Rs), daily mean vapor press deficit (VPD<inf>m</inf>), vapor press deficit at midday (VPD<inf>md</inf>), daily mean temperature (T<inf>m</inf>) and temperature at midday (T<inf>md</inf>) for 6-year-old "Shinvhong" peach under well irrigation, then MDS simulation equation was established to provide technology for precise irrigation scheduling. The results showed that MDS changed similarly with meteorological factors during the experiment periods; however, meteorological factors had different effects on MDS. By path analysis, the direct and total impacts and the decision correlation of Rs and T<inf>md</inf> were the best, and ET<inf>0</inf>, VPD<inf>m</inf>, VPD<inf>md</inf>, T<inf>m</inf>, showed indirect impacts on MDS by Rs and T<inf>md</inf>. So, Rs and T<inf>md</inf> were the main factors that showed impacts on MDS. Based on this, MDS simulation equation was established. There were no significant differences between calculated MDS using the simulation equation and measured MDS. Therefore, the values of MDS calculated from the equation can be used as reference ones, and the standard values of MDS can provide technical support for precision irrigation of peach.
Number of references:15
Main heading:Shrinkage
Controlled terms:Evapotranspiration - Irrigation - Presses (machine tools) - Regression analysis - Vapors - Water supply
Uncontrolled terms:Different effects - Field experiment - Irrigation scheduling - Mean temperature - Meteorological factors - Path analysis - Precision irrigation - Reference evapotranspiration - Simulation equations - Standard values  - Stem diameter - Stem diameter maximum daily shrinkage - Technical support
Classification code:922.2 Mathematical Statistics - 821.3 Agricultural Methods - 804 Chemical Products Generally - 802.3 Chemical Operations - 951 Materials Science - 641.1 Thermodynamics - 537.1 Heat Treatment Processes - 446.1 Water Supply Systems - 444.1 Surface Water - 603.1 Machine Tools, General
DOI:10.3969/j.issn.1002-6819.2010.03.007
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 55>
Accession number:20102012932386
Title:Lubrication characteristics of mixed fuel between cottonseed oil biodiesel and diesel
Authors:Wang, Xiangyang (1); Chen, Jinsi (1); Xu, Yufu (1); Hu, Xianguo (1); Pan, Lijun (2); Jiang, Shaotong (2)
Author affiliation:(1) Institute of Tribology, Hefei University of Technology, Hefei 230009, China; (2) School of Biotechnology and Food Engineering, Hefei University of Technology, Hefei 230009, China
Corresponding author:Hu, X.
      (tribohu@gmail.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:272-276
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Biodiesels were synthesized by the transesterification reaction of cottonseed oil and methyl alcohol and ethyl alcohol, respectively, in order to study the lubricating properties of biodiesel. The biodiesel/diesel mixtures were then obtained by mixing the prepared biodiesels and commercial diesel. The lubrication properties of the obtained mixtures were studied on a four-ball tribological tester. The results showed that the synthesized biodiesels could improve the lubrication properties of diesel obviously. The increase of the biodiesel had a positive effect on the lubrication properties of the mixtures. Moreover, the lubrication properties could be affected remarkably by the different alcohols. The extreme pressure (P<inf>B</inf> value) of the mixture was increased by 94.1% and 29.4% by adding 20.0 vol% methyl ester biodiesel and ethyl ester biodiesel, respectively. The biodiesel from ethyl alcohol could improve the lubrication properties more than that from methyl alcohol. Free fatty acids can also affect the lubricity of biodiesel. The study lays the foundation of application of biodiesel.
Number of references:16
Main heading:Synthetic fuels
Controlled terms:Biodiesel - Cottonseed oil - Diesel fuels - Esterification - Esters - Ethanol - Ethanol fuels - Fatty acids - Lubrication - Methanol  - Methanol fuels - Mixtures - Organic polymers - Synthesis (chemical)
Uncontrolled terms:Ethyl alcohols - Ethyl esters - Extreme pressure - Four-ball - Free fatty acid - Lubricating properties - Lubrication characteristics - Lubrication property - Lubricity - Methyl alcohols  - Methyl esters - Mixed fuel - Positive effects - Transesterification reaction
Classification code:815.1.1 Organic Polymers - 804.1 Organic Compounds - 802.3 Chemical Operations - 802.2 Chemical Reactions - 822.3 Food Products - 612.2 Diesel Engines - 524 Solid Fuels - 523 Liquid Fuels - 522 Gas Fuels - 607.2 Lubrication
DOI:10.3969/j.issn.1002-6819.2010.03.046
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 56>
Accession number:20102012932356
Title:Evaluation of spatial distribution of soil erosion and sediment yield for a small watershed of the Loess Plateau by coupling MIKE-SHE with MUSLE
Authors:Wang, Shengping (1); Zhang, Zhiqiang (1); Tang, Yin (2); Guo, Junting (2)
Author affiliation:(1) Energy and Environmental Research Center, North China Electric Power University, Beijing 102206, China; (2) Beijing Forestry University, Beijing 100083, China
Corresponding author:Zhang, Z.
      (zhqzhang@bjfu.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:92-98
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:By making use of the runoff total and two-dimension discharge to estimate the rainfall-runoff factor of R, the coupling of MIKE-SHE with MUSLE was established, and the raster-based distribution of sediment yield for a small watershed was evaluated. It was found that both sloping field and residential area accounts for 44% and 34% of the total sediment yield, respectively. While, in terms of land forms, the gully slope contributes most of the total sediment yield, with the contribution as high as 68%. In general, it was indicated that 73% of the watershed could be classified as no rill erosion, whilst around 17% of area, especially for the area of gully slope, was of severe soil erosion rate. The identified pattern of erosion rate was generally agreed with the fact that the watershed was well vegetation covered, and the erosion on the gully slope was severe. It was suggested that, to estimate the total sediment yield of the watershed by coupling MIKE-SHE with MUSLE, it is necessary to take into account the procedure of mass erosion.
Number of references:25
Main heading:Sedimentology
Controlled terms:Landforms - Runoff - Size distribution - Soil mechanics - Soils - Watersheds
Uncontrolled terms:Erosion rates - Loess Plateau - MIKE-SHE - Rainfall runoff - Residential areas - Rill erosion - Sediment yield - Sediment yields - Small watersheds - Soil erosion  - Soil erosion rate - Spatial distribution - Two-dimension
Classification code:933.1 Crystalline Solids - 931.2 Physical Properties of Gases, Liquids and Solids - 922.2 Mathematical Statistics - 531.2 Metallography - 483.1 Soils and Soil Mechanics - 481.1 Geology - 444.1 Surface Water - 442.1 Flood Control - 423 Non Mechanical Properties and Tests of Building Materials
DOI:10.3969/j.issn.1002-6819.2010.03.016
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 57>
Accession number:20102012932382
Title:Energy consumption and economic analysis of ground source heat pump used in greenhouse in Beijing
Authors:Chai, Lilong (1); Ma, Chengwei (1); Zhang, Yi (1); Wang, Minglei (2); Ma, Yongliang (3); Ji, Xiuhong (1)
Author affiliation:(1) College of Water Conservancy and Civil Engineering, China Agricultural University, Beijing 100083, China; (2) China Agricultural Machinery Testing Center, Beijing 100083, China; (3) Shangzhuang Experimental Station, China Agricultural University, Beijing 100193, China
Corresponding author:Ma, C.
      (macwbs@cau.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:249-254
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:In order to study the feasibility of the application of ground source heat pump (GSHP) in greenhouses, experimental research on groundwater-style ground source heat pump system was carried out in greenhouse heating in Beijing. Experimental result showed that the coefficient of the system performance in greenhouse heating had reached 3.83 during the heating period of Oct.15, 2007-Mar.10, 2008, about 42% energy had been saved compare with conventional coal-fired hot water heating system, which its merits of energy-saving and greenhouse gases mitigating of the system were distinctive. The total electric consumption and the heating cost of the system was 0.15 kW&middoth/(m²&middotd) and 0.12 Yuan/(m²&middotd), respectively. The comparison among the heating systems of GSHP, natural gas, coal and light diesel oil were made, which the relative heating cost were 1.20, 1.31, 1.00 and 3.36, respectively, and the heating cost of ground source heat pump was higher than that of coal slightly, but was lower than that of natural gas and light diesel oil apparently.
Number of references:15
Main heading:Heat pump systems
Controlled terms:Coal - Coal industry - Diesel fuels - Economic analysis - Electron energy loss spectroscopy - Energy conservation - Energy dissipation - Energy dissipators - Global warming - Greenhouse gases  - Greenhouses - Groundwater - Heating equipment - Hot water heating - Natural gas - Pumps
Uncontrolled terms:Diesel oil - Electric consumption - Energy consumption - Energy saving - Experimental research - Greenhouse heating - Ground source heat pump - Ground source heat pump systems - Heating period - Heating system  - Hot-water heating systems
Classification code:641.2 Heat Transfer - 642.2 Industrial Furnaces and Components - 643.1 Space Heating - 643.2 Space Heating Equipment and Components - 714.2 Semiconductor Devices and Integrated Circuits - 801 Chemistry - 804.1 Organic Compounds - 821.6 Farm Buildings and Other Structures - 911 Cost and Value Engineering; Industrial Economics - 911.2 Industrial Economics - 913 Production Planning and Control; Manufacturing - 931.3 Atomic and Molecular Physics - 932.2 Nuclear Physics - 618.2 Pumps - 402.1 Industrial and Agricultural Buildings - 443.1 Atmospheric Properties - 444.2 Groundwater - 451 Air Pollution - 451.1 Air Pollution Sources - 503 Mines and Mining, Coal - 522 Gas Fuels - 523 Liquid Fuels - 524 Solid Fuels - 525.2 Energy Conservation - 525.4 Energy Losses (industrial and residential) - 612.2 Diesel Engines - 616.1 Heat Exchange Equipment and Components
DOI:10.3969/j.issn.1002-6819.2010.03.042
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 58>
Accession number:20102012932383
Title:Influence of anti-hail net on the habitat and growth of apple
Authors:Bai, Gangshuan (1); Du, Sheni (1); Li, Mingxia (3); Geng, Guijun (2); Yan, Yadan (2)
Author affiliation:(1) Institute of Soil and Water Conservation, Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712100, China; (2) Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, China; (3) College of Forestry, Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712100, China
Corresponding author:Du, S.
      (sndu@nwsuaf.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:255-261
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:The orchard habitat, hail damage and growth of apple had been determined in the orchard which covered with an anti-hail net in loess hilly-gully region of northern Shaanxi Province. Results showed that anti-hail net had increased temperature and overshadowed. Using anti-hail net, orchard air temperature, temperatures at soil surface, 20 cm depth and 40 cm depth of soil had been increased slightly in morning and evening, while decreased slightly in afternoon, and daily average temperature had been increased a little, but daily temperature difference had been decreased. The order of anti-hail net influence on orchard temperature were air temperature &gt;soil surface temperature &gt;soil temperature at 20 cm depth &gt;soil temperature at 40 cm depth. Anti-hail net did not have obvious influence on air humidity and soil moisture, but it had significantly decreased illumination intensity at fine day and wind speed, and the effect was enhanced as wind speed increasing. Anti-hail net decreased photosynthetic rate a little, significantly weakened branch growth, decreased fruit yields, but it did not have significance influence on fruit quality. It decreased fruit and leaf damage percent and index, thus significantly increased fruit price. Anti-hail net should been used and popularized in the region with hail frequently.
Number of references:15
Main heading:Precipitation (meteorology)
Controlled terms:Atmospheric temperature - Ecology - Fruits - Orchards - Soil moisture - Wind effects
Uncontrolled terms:Air humidity - Air temperature - Average temperature - Daily temperatures - Fruit quality - Fruit yield - Fruits growth - Hail damage - Illumination intensity - Increased temperature  - Leaf damage - Photosynthetic rate - Soil surface temperatures - Soil surfaces - Soil temperature - Wind speed
Classification code:821.4 Agricultural Products - 821.3 Agricultural Methods - 483.1 Soils and Soil Mechanics - 454.3 Ecology and Ecosystems - 443.3 Precipitation - 443.1 Atmospheric Properties - 408.1 Structural Design, General
DOI:10.3969/j.issn.1002-6819.2010.03.043
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 59>
Accession number:20102012932350
Title:Effects of irrigation and urea types on water use efficiency of maize
Authors:Shao, Guoqing (1); Li, Zengjia (1); Ning, Tangyuan (1); Zheng, Yanhai (3); Tian, Shenzhong (1); Wang, Yu (1)
Author affiliation:(1) State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian 271018, China; (2) Agrotechnology Extension Station, Agricultural Bureau of Weishan County, Jining 277600, China; (3) State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
Corresponding author:Ning, T.
      (ningty@163.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:58-63
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Water and nitrogen managements are both very important to increase crop yields. For the sake of discussing the effects of irrigation and urea types (normal urea and controlled release urea) on soil water content, kernel filling rate and water use efficiency of maize (Zea Mays L.), an experiment was carried out in a randomized design. Each urea type was used at two nitrogen levels, which were 75 kg/hm² and 150 kg/hm², with no nitrogen used as control respectively. Two irrigation levels, no irrigation in the whole growth duration and irrigated 85 mm at grain filling stage, were designed. The results showed that, at the same level of irrigation and nitrogen, soil water contents in 0-140 cm layer of maize applied with controlled release urea (CU) were higher (P&lt;0.05) at pre-tasselling stage, but lower at maturity stage, than those applied with normal urea (NU), which can be named as an effect of "store water at early stage in soil and use it at late stage (SEUL)". Compared with NU, CU could significantly increase kernel filling rate, water use efficiency (WUE), and yield increased efficiency by irrigation (IEI). WUE and IEI of the treatments applying nitrogen at 150 kg/hm² were higher than those applying at 75 kg/hm². Compared to no irrigation, irrigation reduced the WUE, but increased kernel filling rate and grain yield. CU coupling effect with soil water was higher than that of NU, which could increase the yield and WUE of maize simultaneously. Further analysis of the results showed that, the increases of WUE and IEI of CU were mainly resulted from SEUL effect and higher kernel filling rate. This research provides academic and instructive meanings for high yield and water use efficiency of maize in subhumid regions.
Number of references:22
Main heading:Water content
Controlled terms:Biochemical oxygen demand - Filling - Grain growth - Irrigation - Metabolism - Nitrogen - Soil moisture - Underwater soils - Urea - Water conservation  - Water supply
Uncontrolled terms:Controlled release - Coupling effect - Crop yield - Filling rate - Grain filling - Grain yield - High yield - Irrigation level - Late stage - Maize  - Maize (Zea mays L.) - Maturity stages - Nitrogen levels - Nitrogen management - Randomized design - Soil water - Soil water content - Subhumid regions - Water use efficiency
Classification code:933.1.2 Crystal Growth - 531.2 Metallography - 691.2 Materials Handling Methods - 801.2 Biochemistry - 802.3 Chemical Operations - 804 Chemical Products Generally - 804.1 Organic Compounds - 815.1.1 Organic Polymers - 821.3 Agricultural Methods - 483.1 Soils and Soil Mechanics - 403.1 Urban Planning and Development - 444 Water Resources - 446.1 Water Supply Systems - 471.1 Oceanography, General - 452.2 Sewage Treatment - 453 Water Pollution - 461.9 Biology - 452.4 Industrial Wastes Treatment and Disposal
DOI:10.3969/j.issn.1002-6819.2010.03.010
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 60>
Accession number:20102012932393
Title:Influence of neighborhood distance on simulation accuracy of cellular automata model in land use
Authors:Pan, Ying (1); Yu, Zhenrong (1); Duan, Zengqiang (1); Doluschitz, R. (2)
Author affiliation:(1) College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; (2) Faculty of Agricultural Sciences, Hohenheim University, Institute 410C, 70593 Stuttgart, Germany
Corresponding author:Yu, Z.
      (yuzhr@cau.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:309-315
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Simulation of land use change is often based on cellular automata (CA) modeling theory. The aspect of distances which is in authors' opinion the major parameter in a cellular automata has not been sufficiently discussed. In this paper, neighborhood module of CLUE-S model was used to simulate the land use change of Miyun County, Beijing from 1991 to 2004 and the simulating precision variation was analyzed due to the parameter of neighborhood distance change. Two types of neighborhood with six different distances, 200, 400, 600, 800, 1000, 1200 m, were applied to the model CLUE-S to simulate land use changes. The kappa indexes investigation of different simulation results depicted that the model precision was sensitive to the neighborhood distance and different land types had different sensitivities. The increase of distance in circle neighborhood will decrease the model precision, in the mean while the increase of distance in rectangle neighborhood will increase the precision first then decrease. In future researches of CA model applications a prior validation of neighborhood distances is recommended according to the above conclusion.
Number of references:21
Main heading:Automata theory
Controlled terms:Cellular automata - Computer simulation - Land use - Pattern recognition systems - Robots - Sensitivity analysis - Translation (languages)
Uncontrolled terms:CA model - Cellular automata models - CLUE-S model - Land-use change - Neighborhood distance - Simulation accuracy - Simulation result
Classification code:921 Mathematics - 903.1 Information Sources and Analysis - 751.1 Acoustic Waves - 741.1 Light/Optics - 731.6 Robot Applications - 731.5 Robotics - 731.1 Control Systems - 723.5 Computer Applications - 723 Computer Software, Data Handling and Applications - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 716 Telecommunication; Radar, Radio and Television - 442.2 Land Reclamation - 403 Urban and Regional Planning and Development
DOI:10.3969/j.issn.1002-6819.2010.03.053
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 61>
Accession number:20102012932376
Title:Measurement of pest-damaged area of leaf based on auto-matching of representative leaf
Authors:Zhong, Qufa (1); Zhou, Ping (1); Fu, Binbin (1); Liu, Kewen (1)
Author affiliation:(1) Institute of Vision Detection, Zhejiang Sci-Tech University, Hangzhou 310018, China
Corresponding author:Zhou, P.
      (zp@zstu.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:216-221
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:In order to evaluate the pest-damaged extent of crop quantitatively, the anthors proposed a novel method based on auto-matching of representative whole leaf to measure leaf pest-damaged area. Firstly, the outer contour of leaf was extracted after image binary; secondly, the contour was approximated to a polygon and segmented to many sub-contours using polygon vertexes; thirdly, the mapping relationship between the whole leaf and the pest-damaged leaf was constructed by matching their sub-contours based on the shape context; finally, the pest-damaged leaf was reconstructed by mapping their sub-contour relationship for area calculation. The experiments on ten types of different leaves showed that the average process time for one leaf was 0.952 s, the maximum relative error was 8.22% and, the average relative error was 4.78%. As to leaves with high shape complexity, the average relative error was 7.48%, and to leaves with medium and low shape complexity, those were 5.99% and 1.84%, respectively. The proposed method has proved to be an accurate and efficient method for measurement of leaf pest-damaged area.
Number of references:17
Main heading:Mapping
Controlled terms:Computer vision - Contour measurement - Imaging systems
Uncontrolled terms:After-images - Area calculation - Average relative error - Contour matching - Damaged area - Efficient method - Maximum relative errors - Novel methods - Polygonal approximation - Polygonal approximations  - Process time - Shape complexity - Shape contexts
Classification code:943.3 Special Purpose Instruments - 902.1 Engineering Graphics - 746 Imaging Techniques - 741.2 Vision - 741 Light, Optics and Optical Devices - 731.6 Robot Applications - 723.5 Computer Applications - 723.2 Data Processing and Image Processing - 405.3 Surveying
DOI:10.3969/j.issn.1002-6819.2010.03.036
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 62>
Accession number:20102012932359
Title:Design and experiment of fruit and vegetable grasping system based on grey prediction control
Authors:Wang, Xuelin (1); Ji, Changying (1); Zhou, Jun (1); Jiang, Li (1); Gu, Baoxing (1)
Author affiliation:(1) Colleges of Engineering, Nanjing Agricultural University, Nanjing 210031, China
Corresponding author:Ji, C.
      (chyji@njau.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:112-117
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Incremental PI (proportional integral) force control algorithm was proposed based on grey prediction for making grasp force track set value quickly with small overshoot between end-effector and deformable fruit and vegetable. Grey prediction model was built by the signal of grasp force acquired from the sensor, the weights of predictive force error were increased or decreased in integrated error accordingly to the precision of predictive model. Force controller could employ the past, present and future grasp force information to calculate an appropriate control correction to pre-compensate the force error, and could yield small overshot, fast response simultaneously, so make the controller adaptive to the dynamic grasp process between fruit and end-effector. Experimental results demonstrated the efficacy of grey predictive incremental PI algorithm, which the damage of grasping fruit and vegetable could be decreased.
Number of references:15
Main heading:Controllers
Controlled terms:Algorithms - Dynamic response - Error correction - Force control - Forecasting - Mathematical models - Vegetables
Uncontrolled terms:Fast response - Force control algorithms - Force controller - Force error - Fruit and vegetables - Grasping - Grey prediction - Grey prediction model - Predictive models - Proportional integral  - Small overshoot - System-based
Classification code:922.2 Mathematical Statistics - 921 Mathematics - 912.2 Management - 821.4 Agricultural Products - 732.1 Control Equipment - 731.3 Specific Variables Control - 723 Computer Software, Data Handling and Applications - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 408.1 Structural Design, General
DOI:10.3969/j.issn.1002-6819.2010.03.019
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 63>
Accession number:20102012932387
Title:Flow properties of biodiesel at low temperature and its improvement
Authors:Chen, Xiu (1); Yuan, Yinnan (1); Lai, Yongbin (2)
Author affiliation:(1) School of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China; (2) School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China
Corresponding author:Yuan, Y.
      (yuanyn@ujs.edu.cn)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:277-280
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Flow properties of biodiesel at low temperature were studied by means of gas chromatography-mass (GC-MS), cold filer plugging point tester, the solution crystallization theory and the electronic effect theory. According to bilayer crystallization mechanism of biodiesel, three approaches for reducing cold filer plugging point (CFPP) of biodiesel were put forward: (i) blending with petrodiesel; (ii) treating with cold flow improver additives; and (iii) crystallization fractionation. The study shows that CFPPs of palm methyl ester (PME) and -10 petrodiesel (-10PD) are 8&deg;C and -7&deg;C, respectively. PME blending with -10PD decreases the CFPP of -10PD/PME to -12&deg;C. A eutectic mixture is formed by -10PD and PME, with its CFPP -12&deg;C, and the range of PME blending ratio is 5vol %-20 vol%. Adding 1.0 vol% Flow Fit, 1.5 vol% Flow Fit K and 1.5 vol% T818 additive decreases the CFPP of PME to 3&deg;C, 2&deg;C and 3&deg;C, respectively. Crystallization fractionation decreases the CFPP of PME to 0&deg;C, and its yield is 68.2 vol%. The study provides technical support for using biodiesel in cold region.
Number of references:17
Main heading:Flow of fluids
Controlled terms:Additives - Biodiesel - Blending - Crystallization - Esters - Gas chromatography
Uncontrolled terms:Bi-layer - Blending ratio - Cold flow improver - Cold flow properties - Cold regions - Crystallization mechanisms - Electronic effects - Eutectic mixture - Flow properties - Low temperatures  - Palm methyl esters - Petrodiesel - Solution crystallization - Technical support
Classification code:933.1 Crystalline Solids - 931.1 Mechanics - 804.1 Organic Compounds - 804 Chemical Products Generally - 803 Chemical Agents and Basic Industrial Chemicals - 802.3 Chemical Operations - 801 Chemistry - 631.1 Fluid Flow, General - 523 Liquid Fuels
DOI:10.3969/j.issn.1002-6819.2010.03.047
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.

<RECORD 64>
Accession number:20102012932392
Title:Evaluation method of success degree of land consolidation
Authors:Xiao, Guangqiang (1); Li, Xinju (3); Hu, Zhenqi (1); Ma, Guangjin (4); Liu, Xueran (3)
Author affiliation:(1) Institute of Land Reclamation and Ecology, China University of Mining And Technology (Beijing), Bejing 100083, China; (2) Land Consolidation Center of the Ministry of Land and Resource P.R.C, Beijing 100035, China; (3) College of Resources and Environment, Shandong Agricultural University, Taian 271018, China; (4) The Bureau of Land and Resource of Taian, Taian 271000, China
Corresponding author:Li, X.
      (lxj0911@126.com)
   
Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title:Nongye Gongcheng Xuebao
Volume:26
Issue:3
Issue date:March 2010
Publication year:2010
Pages:304-308
Language:Chinese
ISSN:10026819
CODEN:NGOXEO
Document type:Journal article (JA)
Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China
Abstract:Land consolidation is the main measure to reach the active balance of farmland area, and every executive step plays important role for the quality of land consolidation. Taking the case of Guozhuang, Feicheng City, Shandong Province, this study gave the success degree evaluation of land consolidation to search the better evaluation method for every consolidation step. To build the index system for the evaluation, 3 main indexes and 12 relative factors were selected in the steps of organization, scheme and execution. Terfel Method was adopted to quantize indexes and factors, and exponential sum method was used to calculate the success degree of factors, indexes and the whole project. The results showed the success degree of project organization reached 0.70 for the selected indexes, which was basically satisfied with the project. The main cause was the weak independence and unity of legal person, which led to the poor control ability and influenced the duty implement in the project. The success degree of project scheme was 0.74. Because they weren't announced and closely combined with practice, schemes changed in the process. The project execution totally succeeded with success degree of 0.94. The success degree of the whole project was 0.83, which meant this project of land consolidation was completely successful. Empirical studies have shown that determine success evaluation method of land consolidation project is of scientific and reliable.
Number of references:15
Main heading:Planning
Controlled terms:Environmental engineering - Land use - Regional planning
Uncontrolled terms:Consolidation projects - Empirical studies - Evaluation - Evaluation Method - Exponential sums - Feicheng - Feicheng City - Index systems - Land consolidation - Project execution  - Project organization - Shandong province
Classification code:403 Urban and Regional Planning and Development - 403.2 Regional Planning and Development - 442.2 Land Reclamation - 454 Environmental Engineering - 912.2 Management
DOI:10.3969/j.issn.1002-6819.2010.03.052
Database:Compendex
Compilation and indexing terms, Copyright 2009 Elsevier Inc.