1.   Accession number:  20091912077067

Title:  Multi-objective controlled drainage model based on particle swarm optimized algorithm

Authors:  Yin, Guoxi1 ; Zhang, Zhanyu1 ; Zhang, Guohua2 ; Guo, Xiangping1 

Author affiliation:  1  College of Agricultural Engineering, Hohai University, Nanjing 210098, China

2  China Irrigation and Drainage Development Center, Beijing 100054, China

Corresponding author:  Yin, G. (ygx151@sina.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  6-9

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 includes two research contents: 1) Considering the characteristics of drainage fashion in hilly region of South China, a field experiment was conducted to search for the regularity of the concentrations of nitrogen and phosphorus in surface runoff with controlled drainage. The function of total infiltration with time was fit by Philip formula. A multi-objective controlled drainage model was established for storm drainage and reducing nitrogen and phosphorus loss. 2) Based on the Pareto optimal solutions, multi-objective optimization problems were solved by using particle swarm optimizer arithmetic and computer program compiled by MATLAB. Aimed at the characteristics of multi-objective controlled drainage model, the particles fitness, individual extremum and group extremum were defined. The results showed that the computational and observed drainage time were identical, which offered references for farmland drainage management.

Number of references:  10

 Main heading:  Model buildings

Controlled terms:  Agricultural runoff  -  Hydraulic models  -  Mathematical models  -  MATLAB  -  Multiobjective optimization  -  Phosphorus

Uncontrolled terms:  Computer programs  -  Controlled drainage  -  Field experiments  -  Model-based  -  Multi objectives  -  Multi-objective model  -  Multi-objective optimization problems  -  Pareto-optimal solutions  -  Particle swarm optimized algorithms  -  Particle swarm optimizer arithmetic   -  Phosphorus loss  -  South chinas  -  Storm drainages  -  Surface runoffs

Classification code:  921.5 Optimization Techniques  -  921 Mathematics  -  821.5 Agricultural Wastes  -  804 Chemical Products Generally  -  723.5 Computer Applications  -  723.1.1 Computer Programming Languages  -  632.1 Hydraulics  -  453.1 Water Pollution Sources  -  402 Buildings and Towers

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  2.   Accession number:  20091912077081

Title:  Optimized design of tea vibrating-shifting machine parameters based on ant colony algorithm

Authors:  Li, Bing1 ; Xia, Tao2 ; Wan, Xiaochun2 ; Li, Shangqing2 

Author affiliation:  1  School of Engineering, Anhui Agricultural University, Hefei 230036, China

2  School of Tea and Food Science and Technology, Anhui Agricultural University, Hefei 230036, China

Corresponding author:  Xia, T. (xiatao62@126.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  84-87

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:  Mathematical model for tea vibrating-shifting machine optimum design was established in this paper. Based on the ant colony algorithms and Matlab, the realization programs for parameters simulation of tea vibrating-shifting machine were made. The programs were used in optimization simulation and verification tests of tilt angles, direction angles, crankthrow, and vibration palstance. The results showed: when tilt angles α were 2.8°, direction angles β were 52.8°, crankthrow r was 0.025 m, vibration palstance ω was 21.5 rad/s, the sieve ratio was increased by 14% and the productivity of unit sieving area was increased by 28 kg/(m2·h).

Number of references:  15

Main heading:  Machine design

Controlled terms:  Algorithms  -  Global optimization  -  Machinery  -  MATLAB  -  Optimization

Uncontrolled terms:  Ant colony algorithms  -  Direction angles  -  Machine parameters  -  Optimization simulations  -  Optimized designs  -  Optimum designs  -  Tea vibrating-shifting machinery  -  Tilt angles  -  Verification tests

Classification code:  601 Mechanical Design  -  723 Computer Software, Data Handling and Applications  -  723.1.1 Computer Programming Languages  -  723.5 Computer Applications  -  921 Mathematics  -  921.5 Optimization Techniques

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  3.   Accession number:  20091912077084

Title:  Identification of swine individuals and construction of traceability system under free-range pig-rearing system

Authors:  Xiong, Benhai1 ; Fu, Runting2 ; Lin, Zhaohui2 ; Luo, Qingyao1 ; Yang, Liang1 

Author affiliation:  1  State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100094, China

2  Animal Husbandry and Veterinary Bureau, Animal Husbandry Development and Service Center, Tianjin 300210, China

Corresponding author:  Xiong, B. (Bhxiong@iascaas.net.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  98-102

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 meet the requirements of government supervision of pork production safety as well as consumer's right to know what they buy and to protect the public safety of pork food, animal identification, intelligent PDA mobile inquiring and reading, GPRS, internet and other information technologies were adopted, and a data collection method was uploaded to set up pigs farming files under free-range pig-rearing system. Related metadata structures and its mobile database was designed, and a mobile PDA embedded system was developed to collect pig individual information. And the information was uploaded into the remote central database. Finally, a mobile link with a specific website was realized. The formed embedded PDA could identify both a special swine bar ear tags appointed by Ministry of Agriculture of China and a general data-matrix bar ear tags was designed and it could record all of input data including feed types, feed additives, animal drugs and even some forbidden medicines and submit them to the oriented database through GPRS. At the same time, the remote central database could be maintained by mobile PDA and GPRS, and finally reach the aim of pork tracking from its origin to consumption and its tracing through turn-over direction. A feasible technology solution was suggested how to set up network electronical swine feeding data files involved swine separated mode based on farmers. The solution was proved practical through its application in the Tianjin's pork quality traceability system construction. Although some individual techniques have some adverse effects on the system running such as GPRS transmitting speed now, these will be resolved with the development of communication technology. The full implementation of this solution around China will supply technical supports in guaranteeing the quality and safety of pork production supervision and meet the demand of consumers.

Number of references:  17

Main heading:  Wireless networks

Controlled terms:  Agricultural products  -  Competition  -  Feeding  -  Meats  -  Metadata  -  Mobile devices  -  Personal digital assistants  -  Portable equipment  -  Telecommunication systems

Uncontrolled terms:  Adverse effects  -  Animal identifications  -  Communication technologies  -  Data collection methods  -  Data files  -  Feed additives  -  Input datum  -  matrixes  -  Mobile database  -  Pork productions   -  Public safeties  -  Right-to-know  -  Separated feeding  -  Swine  -  Technical supports  -  Technology solutions  -  Tianjin  -  Traceability  -  Traceability systems

Classification code:  911.2 Industrial Economics  -  822.3 Food Products  -  821.4 Agricultural Products  -  723 Computer Software, Data Handling and Applications  -  722.4 Digital Computers and Systems  -  722.3 Data Communication, Equipment and Techniques  -  722 Computer Systems and Equipment  -  718 Telephone Systems and Related Technologies; Line Communications  -  717 Optical Communication  -  716.3 Radio Systems and Equipment  -  716 Telecommunication; Radar, Radio and Television  -  704.2 Electric Equipment  -  691.2 Materials Handling Methods

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  4.   Accession number:  20091912077110

Title:  Integration of freeze concentration and PEF in the processing of fruit juices

Authors:  Chen, Meiying1 ; Gao, Mingcai1 ; Gong, Xuemei1 ; Chen, Jinquan1 ; Chen, Yiqin1 

Author affiliation:  1  College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China

Corresponding author:  Chen, J. (chenjq6613@yahoo.com.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  237-241

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 retain the most probable content of original flavor and nutrition of fruit juice, two non-thermal processing technologies of pulsed electric field (PEF) and freeze concentration were improved and integrated to be applied to the concentration of fruit juice. In this system, microorganism could be killed effectively by PEF technology and enzymes activity could be inactivated efficiently by freeze concentration. This system was applied to the concentration of orange juice, and the results of sensory evaluation analysis showed that the quality of juice produced by technique of freeze concentration combined with PEF was better than that by pasteurization technique.

Number of references:  19

Main heading:  Quality control

Controlled terms:  Concentration (process)  -  Electric fields  -  Fruit juices  -  Fruits

Uncontrolled terms:  Concentration of  -  Enzymes activities  -  Freeze concentration  -  Non-thermal processing  -  Orange juices  -  Pulsed electric field  -  Sensory evaluation analysis

Classification code:  701.1 Electricity: Basic Concepts and Phenomena  -  802.3 Chemical Operations  -  821.4 Agricultural Products  -  822.3 Food Products  -  913.3 Quality Assurance and Control

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  5.   Accession number:  20091912077113

Title:  Analysis of the characteristics of producing dehydrated salted duck and optimization of its processing parameters

Authors:  Xiao, Lei1, 2 ; Yao, Jinghua1 ; Lu, Zejian2 

Author affiliation:  1  School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221008, China

2  College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China

Corresponding author:  Xiao, L. (lei4703@163.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  253-257

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 improve the quality of dehydrated salted duck, a small controlled atmosphere dryer developed by the authors was used to conduct the experiment for processing salted duck. The effects of drying temperature, airflow velocity and concentration of Tertiary Butylhydroquinone (TBHQ) on fat oxidation and dehydration rate of dehydrated salted duck were investigated by means of quadratic orthogonal rotary combination design. The results showed that the dehydration rate of dehydrated salted duck was improved with increasing drying temperature and velocity of airflow, and fat oxidation was increased with increasing drying temperature, but the effect of TBHQ concentration on fatty oxidation was opposite. Regression equations, which correlated acid value, Sulfo-Barbitone Acid (TBA) value and dehydration rate with TBHQ concentration, drying temperature and airflow velocity, were established. The optimal parameters were: drying temperature of 49°C, airflow velocity of 1.84 m/s and TBHQ concentration of 0.018%. The quality indexes of dehydrated salted duck were acid value of 1.129 mg/g, TBA value of 0.168mg/kg, dehydration rate of 3.862%/h under the optimal conditions.

Number of references:  13

Main heading:  Dewatering

Controlled terms:  Acids  -  Concentration (process)  -  Curing  -  Dehydration  -  Drying  -  Fatty acids  -  Optimization  -  Oxidation  -  Velocity

Uncontrolled terms:  Acid values  -  Air flow velocities  -  Combination designs  -  Concentration of  -  Controlled atmospheres  -  Dehydrated salted duck  -  Dehydration rates  -  Drying temperatures  -  Fat oxidations  -  Optimal conditions   -  Optimal parameters  -  Processing parameters  -  Quality indices  -  Regression equations

Classification code:  921.5 Optimization Techniques  -  818.3 Rubber and Elastomer Processing  -  815.1 Polymeric Materials  -  804.1 Organic Compounds  -  931.1 Mechanics  -  804 Chemical Products Generally  -  802.3 Chemical Operations  -  802.2 Chemical Reactions  -  642.1 Process Heating  -  803 Chemical Agents and Basic Industrial Chemicals

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  6.   Accession number:  20091912077091

Title:  C/N content ratio of rice leaf monitoring based on canopy hyperspectral parameters

Authors:  Zhou, Dongqin1, 2 ; Zhu, Yan1, 2 ; Yang, Jie1, 2 ; Tian, Yongchao1, 2 ; Yao, Xia1, 2 ; Cao, Weixing1, 2 

Author affiliation:  1  Hi-Tech Key Laboratory of Information Agriculture of Jiangsu Province, Nanjing Agricultural University, Nanjing 210095, China

2  Key Laboratory of Crop Growth Regulation of Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China

Corresponding author:  Cao, W. (caow@njau.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  135-141

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:  Carbon (C) content and nitrogen (N) content ratio of leaf is a key index of carbon and nitrogen metabolic status, thus it is important for precision diagnosis and management of plant growth and yield formation. In order to study the feasibility of estimating the ratio of C and N contents of rice leaves with properties of canopy reflectance spectra, two field experiments were conducted with different nitrogen levels and rice cultivars (Oryza sativa L.) in two years. Then the relationships of C/N ratio of leaf to reflectance of single bands, different vegetation indices, derivative indices and parameters normalized by the continuum were analyzed comprehensively. The results showed that there was consistent correlation between C/N ratio and canopy reflectance after rice jointing stage. The C/N ratio of leaf was positively correlated to reflectance at 350~742 nm, and negatively correlated at 750~1143 nm, while highly correlated to eight spectral parameters among all cultivars and growth stages. After comparing the R2 and SE of regression equations, the spectral index of ND672 was found to be the best parameter for predicting C/N ratio of leaf in rice. The derived equation was tested with the observed data of all growth stages in the field experiment. The estimation precision ranged 0.687~0.986, estimation accuracy 0.907~1.126, and RMSE 7.851~18.25, indicating a good fit between the predicted and observed values of C/N ratio of leaf. Tests with other independent dataset showed that the estimation precision was 0.857~0.967, estimation accuracy 0.970~1.049, and RMSE 7.07~16.01. It was concluded that the present hyperspectral model was feasible and reliable for estimating C/N ratio of rice leaf with different cultivars and nitrogen levels.

Number of references:  28

Main heading:  Parameter estimation

Controlled terms:  Forestry  -  Grain (agricultural product)  -  Interferometry  -  Metal analysis  -  Nitrogen  -  Plant life extension  -  Reflection  -  Spectrometers  -  Spectrometry  -  Spectrum analysis   -  Spectrum analyzers  -  Statistical tests  -  Vegetation

Uncontrolled terms:  C/N ratios  -  Canopy reflectance spectrum  -  Canopy reflectances  -  Carbon and nitrogens  -  Carbon-nitrogen ratio of leaf  -  Content ratios  -  Data sets  -  Field experiments  -  Growth stages  -  Hyper-spectral   -  Hyperspectral models  -  Monitoring models  -  N contents  -  Nitrogen levels  -  Observed datum  -  Oryza sativa  -  Plant growths  -  Regression equations  -  Rice cultivars  -  Rice leaf   -  Rice leaves  -  Single bands  -  Spectral indices  -  Spectral parameters  -  Vegetation indexes

Classification code:  944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments  -  821.0 Woodlands and Forestry  -  821.4 Agricultural Products  -  912.1 Industrial Engineering  -  921 Mathematics  -  922.2 Mathematical Statistics  -  941 Acoustical and Optical Measuring Instruments  -  941.3 Optical Instruments  -  941.4 Optical Variables Measurements  -  942 Electric and Electronic Measuring Instruments  -  943 Mechanical and Miscellaneous Measuring Instruments  -  821 Agricultural Equipment and Methods; Vegetation and Pest Control  -  402.1 Industrial and Agricultural Buildings  -  461.9 Biology  -  525.1 Energy Resources and Renewable Energy Issues  -  531 Metallurgy and Metallography  -  804 Chemical Products Generally  -  711 Electromagnetic Waves  -  741.1 Light/Optics  -  741.3 Optical Devices and Systems  -  801 Chemistry  -  731.1 Control Systems

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  7.   Accession number:  20091912077294

Title:  Model for prediction of non-point source pollution load based on self-memory theory

Authors:  Li, Jiake1 ; Li, Huai'en1 ; Shen, Bing1 ; Li, Yajiao2 

Author affiliation:  1  Key Laboratory of Northwest Water Resource and Environment Ecology of Ministry of Education, Xi'an University of Technology, Xi'an 710048, China

2  School of Architecture and Civil Engineering, Xi'an University of Science and Technology, Xi'an 710054, China

Corresponding author:  Li, J. (xaut_ljk@163.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  28-32

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 self-memory theory was applied into a prediction model estimating annual non-point source(NPS) pollution load. The common self-memory model was modified to improve its accuracy. Data used for model establishing include non-point source pollution load of total nitrogen, flow, sediment at the Hua county hydrologic station on the Weihe River and precipitation of upstream basin from 1976 to 1999. The first 21 years' data were used for training and the last 3 years' data for testing. The results indicated that the modified self-memory method performed better, and the method could be used to predict NPS pollution load.

Number of references:  14

Main heading:  Pollution control

Controlled terms:  Mathematical techniques  -  Pollution induced corrosion  -  River pollution

Uncontrolled terms:  Hydrologic stations  -  Load  -  Memory models  -  Non-point source pollution  -  NPS pollutions  -  Prediction  -  Prediction models  -  Self-memory theory  -  Total nitrogens

Classification code:  453 Water Pollution  -  454.2 Environmental Impact and Protection  -  539.1 Metals Corrosion  -  921 Mathematics

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  8.   Accession number:  20091912077066

Title:  Direct calculation for normal depth and critical depth of circular section tunnel under free flow

Authors:  Zhang, Kuandi1 ; Lü, Hongxing1 ; Zhao, Yanfeng1 

Author affiliation:  1  College of Water Conservancy and Architectural Engineering, Northwest Agriculture and Forestry University, Yangling 712100, China

Corresponding author:  Lü, H. (lvhongxing@tom.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  1-5

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:  There is no analytical expression to solve the normal depth and critical depth of circular section tunnel under free flow. The traditional solving methods, such as trial method and chart method, are very complicated and low precision. In this paper, Newton iteration formula for computing normal depth and critical depth was put forward by mathematical transformation of uniform flow equation and critical flow equation of circular section tunnel. Then, the relationship between the corresponding central angle and the introduced parameters was analyzed. An approximate formula for angle was obtained according to optimal uniform approximation principle. Using this approximate formula as initial value of iteration formula, a direct formula for calculating normal depth and critical depth of circular section tunnel was established after its first iterative. Results of the example calculation and error analysis showed that the maximum relative error of normal depth and critical depth was 0.32% and 0.0049%, respectively with the application scope of engineering. The precision will be 103 and 105 times higher than the original one after using the iterative formula once again.

Number of references:  15

Main heading:  Iterative methods

Controlled terms:  Approximation algorithms  -  Error analysis  -  Hydraulic models  -  Hydraulic structures  -  Mathematical transformations  -  Particle size analysis  -  Tunneling (excavation)  -  Tunnels  -  Wetting

Uncontrolled terms:  Analytical expressions  -  Approximate formulas  -  Circular wetted cross section  -  Critical depths  -  Critical flows  -  Direct calculations  -  Free flows  -  Hydraulic calculation  -  Initial values  -  Iterative formulae   -  Maximum relative errors  -  Newton iteration formulas  -  Newton iteration method  -  Solving methods  -  Tunneling  -  Uniform approximations  -  Uniform flows

Classification code:  951 Materials Science  -  802.3 Chemical Operations  -  921 Mathematics  -  921.3 Mathematical Transformations  -  921.6 Numerical Methods  -  931.2 Physical Properties of Gases, Liquids and Solids  -  943.3 Special Purpose Instruments  -  632.1 Hydraulics  -  502.1 Mine and Quarry Operations  -  446.2 Related Hydraulic Structures  -  441 Dams and Reservoirs; Hydro Development  -  407.2 Waterways  -  401.2 Tunnels and Tunneling  -  611 Hydroelectric and Tidal Power Plants

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  9.   Accession number:  20091912077086

Title:  Electronic nose measurement system for freshness of freshwater fish based on LabVIEW

Authors:  Zhang, Jun1, 2 ; Li, Xiaoyu1 ; Wang, Wei1 ; Zhou, Zhu1 ; Zhou, Wei1 ; Huang, Yi1 ; Xiao, Wu1 ; Hu, Bo1 

Author affiliation:  1  College of Engineering and Technology, Huazhong Agricultural University, Wuhan 430070, China

2  School of Construction Machinery, Chang'an University, Xi'an 710064, China

Corresponding author:  Li, X. (lixiaoyu@mail.hzau.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  110-113

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:  Freshness makes a major contribution to the quality of fish and fishery products, which could be evaluated by fish odor during storage. On the basis of volatile odor of storage fish, four-gas sensor arrays (TGS822 for ethanol; TGS825 for H2S; TGGS826 for NH3 and aime, TGS832 for halocarbon) were selected as the nose of electronic nose system, the electronic nose measurement system was constructed based on LabVIEW, then silver carp meat during storage was investigated by using this system. The results indicate that the response of electronic nose is correlated with freshness loss of fish. When Principal Component Analysis method is used to deal with measured data, fresh, semi-fresh, and deteriorated (included semi-deteriorated) silver carp samples can be distinguished with one another, which proves the applicability of self-design electronic nose measurement system.

Number of references:  18

Main heading:  Meats

Controlled terms:  Artificial organs  -  Digital instruments  -  Ethanol  -  Fish  -  Principal component analysis  -  Sensors  -  Sensory aids  -  Silver

Uncontrolled terms:  Electronic nose  -  Freshness  -  Freshwater fish  -  Measurement system  -  Virtual instrument

Classification code:  944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments  -  804.1 Organic Compounds  -  821 Agricultural Equipment and Methods; Vegetation and Pest Control  -  822 Food Technology  -  822.3 Food Products  -  922.2 Mathematical Statistics  -  941 Acoustical and Optical Measuring Instruments  -  942 Electric and Electronic Measuring Instruments  -  943 Mechanical and Miscellaneous Measuring Instruments  -  801 Chemistry  -  461 Bioengineering and Biology  -  461.5 Rehabilitation Engineering and Assistive Technology  -  462.1 Biomedical Equipment, General  -  732.2 Control Instrumentation  -  462.4 Prosthetics  -  523 Liquid Fuels  -  547.1 Precious Metals  -  471 Marine Science and Oceanography

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  10.   Accession number:  20091912077090

Title:  Design and implementation of SMS-platform system for diagnosis of fish diseases

Authors:  Wang, Guirong1 ; Li, Daoliang2, 3 ; Lü, Zhaoqin1 ; Duan, Qingling2, 3 ; Wen, Jiwen4 

Author affiliation:  1  College of Mechanical and Electronic Engineering, Shandong Agricultural University, Tai'an 271018, China

2  College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China

3  EU-China Center for Information and Communication Technologies, Beijing 100083, China

4  Economics and Management Department, Beijing Forestry University, Beijing 100083, China

Corresponding author:  Wang, G.

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

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:  Due to the difficulty to access the web-based fish disease diagnosis system for users in rural areas, a fish disease diagnosis platform was developed based on the wide coverage of mobile signal and the convenient use of short message service (SMS) in order to solve fish disease problems in countryside. By the analysis of its function, user-input code and diagnosis process were designed in the platform, and the system function was developed in Java. The system can provide service for users to inquire fish disease diagnosis through short message. As the result certified, the platform can reply to users in 20 seconds on average with a high accurate rate of 93.57% for diagnoses of fresh-water-fish diseases in Tianjin area in China. It can prompt the application of intelligent-diagnosis technology for fish disease and expand the coverage of fish disease diagnosis knowledge in rural areas in China.

Number of references:  20

Main heading:  Meats

Controlled terms:  Fish  -  Rural areas

Uncontrolled terms:  Diagnosis technologies  -  Fish disease diagnosis  -  Fresh waters  -  Given-input format  -  Mobile signals  -  Platform systems  -  Short message services  -  Short messages  -  SMS platform  -  System functions   -  Tianjin

Classification code:  901.4 Impact of Technology on Society  -  822.3 Food Products  -  822 Food Technology  -  821 Agricultural Equipment and Methods; Vegetation and Pest Control  -  471 Marine Science and Oceanography  -  461 Bioengineering and Biology  -  403.2 Regional Planning and Development

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  11.   Accession number:  20091912077105

Title:  Effects of enhanced ultraviolet-B radiation on diurnal variations of photosynthesis in grapevine

Authors:  Zhou, Xinming1, 2 ; Zhang, Zhenwen1 ; Xi, Zhumei1 ; Jiao, Xuliang1 

Author affiliation:  1  College of Enology, Northwest Agriculture and Forestry University, Yangling 712100, China

2  Yantai Changyu Pioneer Wine Company Ltd., Yantai 264001, China

Corresponding author:  Zhang, Z. (Zhangzhw60@163.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  209-212

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:  Increase in UV-B radiation on earth resulted from continual destruction of atmosphere ozone layer can have significant effects on growth of plants. The effects of enhanced different intensities of UV-B radiation on diurnal variation of photosynthesis on the leaves of Cabernet Sauvignon were studied under natural sunlight condition in order to provide more bases. The results showed that under the treatments of UV-B radiation, there were double peak in the diurnal variations of photosynthetic rate, stomatal conductance, intercellular CO2 concentration and transpiration rate, and the sequence was: Lower radiation treatment(T1, 10.8 μW/cm2) > CK > Higher radiation treatment(T2, 25.6 μW/cm2), and the sequence of water use efficiency was CK > T1 > T2. But the content of photosynthetic pigments was not obviously influenced compared with that of CK. Such results indicate that the effects of enhanced UV-B radiation on photosynthesis in grapevine are related to different intensities of UV-B radiation and treatment time, and that reasonable enhanced UV-B radiation does not do harm to photosynthesis in grapevine.

Number of references:  16

Main heading:  Radiation effects

Controlled terms:  Agricultural products  -  Atmospheric radiation  -  Biochemical oxygen demand  -  Ozone  -  Ozone layer  -  Photosynthesis  -  Water supply

Uncontrolled terms:  Cabernet-Sauvignon  -  Diurnal variations  -  Double peaks  -  Grapevine, water use efficiency  -  Natural sunlights  -  Photosynthetic pigments  -  Photosynthetic rates  -  Radiation treatments  -  Stomatal conductances  -  Transpiration rates   -  Treatment time  -  Ultraviolet-B radiation  -  Uv-b radiations

Classification code:  804 Chemical Products Generally  -  802.2 Chemical Reactions  -  744 Lasers  -  741.1 Light/Optics  -  711 Electromagnetic Waves  -  821.4 Agricultural Products  -  622.2 Radiation Effects  -  452.4 Industrial Wastes Treatment and Disposal  -  452.2 Sewage Treatment  -  446.1 Water Supply Systems  -  443.1 Atmospheric Properties  -  453 Water Pollution

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  12.   Accession number:  20091912077075

Title:  Design of hybrid type mixed-mode solar dryer for fruits and vegetables

Authors:  Ma, Hongjiang1, 2 ; Wang, Hai2 ; Wang, Jie1 

Author affiliation:  1  College of Food Science and Technology, Agricultural University of Hebei, Baoding 071001, China

2  Academy of Planning and Designing of the Ministry of Agriculture, Beijing 100125, China

Corresponding author:  Wang, H. (wanghai948@126.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  50-54

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 problems in traditional drying technology of fruits and vegetables and advancing crop product quality, a kind of fruits and vegetables dryer was designed based on characteristics of climate and agricultural products in Xinjiang province. Energy collection system, control system and drying system were designed with parameters setted and experimentation of drying grape was carried out. Comparing with the traditional drying ways, the drying time was shortened 66.7% and the rate of green-class products increased from less than 35% to 79.19%. The equipment can improve the efficiency of drying crops and promote agricultural development of Xinjiang province.

Number of references:  20

Main heading:  Drying

Controlled terms:  Crops  -  Curing  -  Dewatering  -  Dryers (equipment)  -  Fruits  -  Solar energy  -  Solar radiation

Uncontrolled terms:  Agricultural development  -  Drying systems  -  Drying technologies  -  Drying time  -  Energy collections  -  Hybrid types  -  Mixed-mode solar dryers  -  Product qualities  -  Raisin  -  Xinjiang

Classification code:  818.3 Rubber and Elastomer Processing  -  815.1 Polymeric Materials  -  802.3 Chemical Operations  -  802.2 Chemical Reactions  -  821.4 Agricultural Products  -  802.1 Chemical Plants and Equipment  -  642.2 Industrial Furnaces and Components  -  642.1 Process Heating  -  615.2 Solar Power  -  657.1 Solar Energy and Phenomena

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  13.   Accession number:  20091912077115

Title:  Optimization of the composition and technology for shellac preservative fruit wax with Natamycin

Authors:  Hu, Yunfeng1 ; Xing, Yage1 ; Li, Xihong1 ; Jiang, Xiaoyan1 ; Hu, Ming1 

Author affiliation:  1  Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China

Corresponding author:  Hu, Y. (hu-yf@163.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

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 improve the stability and inhibition ability of shellac emulsion, and decide the composition and the technology of shellac preservative fruit wax, effects of emulsion temperature and speed rate on the stability of shellac emulsion were investigated. Optional composition of different agents, emulsion time, emulsion temperature and concentration of Natamycin added in were also studied. The preparation technology for preservative fruit wax was decided in this article which was as follows: 12.0% of shellac, 2.0% of morpholine, 1.0% of propanediol, 1.2% of ammonia, 1.8% of oleic acid, speed rate of 900 r/min, the emulsion temperature of 115°C, and the emulsion time of 30 min. When the temperature was down to 60°C, 600 mg/L Natamycin was added in, then scattered for 15 min. Finally, when the temperature fell to 30°C, the obtained suspension was homogenized at a pressure of 50 MPa for two times. This shellac preservative fruit wax with chocolate brown color has a good stability and a high drying speed, and the brightness of fruits was high and lasting. The oranges coated by this preservative wax have good qualities and appearances under 5~10°C and 60%~65% of relative humidity for 45 d, furthermore, the weight loss rate was about 5% lower and the rate of good fruits was about 40% higher than that of uncoated fruits.

Number of references:  13

Main heading:  Fruits

Controlled terms:  Atmospheric humidity  -  Emulsification  -  Oleic acid  -  Optimization  -  Technology  -  Waxes

Uncontrolled terms:  Brown colors  -  Concentration of  -  Drying speed  -  Good stabilities  -  Keep-freshing  -  Morpholine  -  Natamycin  -  Preparation technologies  -  Propanediol  -  Relative humidities   -  Shellac  -  Speed rates  -  Weight loss rates

Classification code:  443.1 Atmospheric Properties  -  802.3 Chemical Operations  -  804.1 Organic Compounds  -  821.4 Agricultural Products  -  901 Engineering Profession  -  921.5 Optimization Techniques

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  14.   Accession number:  20091912077295

 Title:  Method for calculating maximum tractive torque of tracked vehicle while steering

Authors:  Chi, Yuan1 ; Jiang, Enchen2 

Author affiliation:  1  College of Engineering, Northeast Agricultural University, Harbin 150030, China

2  College of Engineering, South China Agricultural University, Guangzhou 510642, China

Corresponding author:  Jiang, E. (ecjiang@scau.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  74-78

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:  Tracked vehicle need to overcome not only longitudinal resistance but also lateral resistance during turning. Based on the study on that of having no center gravity offset, tractive torque were determined while having center gravity offset. Through comparative analysis and example calculation, conclusions could be drawn that the lateral center gravity offset had no effect on the gross turning resistance, but the longitudinal offset had great effects on it. With the increase of the longitudinal offset, the turning resistance decreased. The minimum tractive torque was acquired while longitudinal offset was only considered and the maximum was acquired while the lateral offset was only considered. The track which is nearer to the lateral center gravity offset has the most tractive torque while two tracks rotate to the opposite direction.

Number of references:  15

Main heading:  Gravitation

Controlled terms:  Torque  -  Turning  -  Vehicles

Uncontrolled terms:  Center gravity offset  -  Comparative analysis  -  Lateral resistances  -  Tracked vehicles  -  Tractive torque

Classification code:  421 Strength of Building Materials; Mechanical Properties  -  432 Highway Transportation  -  604.2 Machining Operations  -  931.2 Physical Properties of Gases, Liquids and Solids  -  931.5 Gravitation, Relativity and String Theory

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  15.   Accession number:  20091912077296

Title:  Index system for regional suitability evaluation of trinity biogas ecosystem

Authors:  Chen, Yu1, 3 ; Yang, Gaihe2, 3 ; Feng, Yongzhong2, 3 ; Ren, Guangxin2, 3 

Author affiliation:  1  College of Forestry, Northwest Agriculture and Forestry University, Yangling 712100, China

2  College of Agronomy, Northwest Agriculture and Forestry University, Yangling 712100, China

3  Research Center for Recycling Agricultural Engineering Technology of Shannxi Province, Yangling 712100, China

Corresponding author:  Yang, G. (ygh@nwsuaf.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  174-178

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 analytical hierarchy process (AHP) was adopted to study the index system for regional suitability evaluation of trinity biogas ecosystem. The index system was built from climate, energy situation and social and economic factors. MATLAB6.5 was used to confirm the weights of indices. The regional suitability of trinity biogas ecosystem in Ansai county, Long county and in Xixiang county was evaluated by comprehensive evaluation method. According to the analysis results, the regional suitability classified standard was determined. The results indicate that the adaptabilities of these three counties to develop the trinity biogas ecosystem are: Long > Xixiang > Ansai. Xixiang county and Long county are suitable areas, Ansai county is sub-suitable region, and the assessment result are consistent with the actual situation.

Number of references:  19

Main heading:  Ecosystems

Controlled terms:  Biogas  -  Climate change  -  Energy utilization  -  MATLAB

Uncontrolled terms:  Analysis results  -  Analytical hierarchy process  -  Comprehensive evaluations  -  Economic factors  -  Energy situations  -  Index system  -  Matlab6.5  -  Regional suitability evaluation  -  Trinity

Classification code:  921 Mathematics  -  821.5 Agricultural Wastes  -  723.5 Computer Applications  -  723.1.1 Computer Programming Languages  -  525.3 Energy Utilization  -  522 Gas Fuels  -  454.3 Ecology and Ecosystems  -  451 Air Pollution  -  443.1 Atmospheric Properties

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  16.   Accession number:  20091912077102

Title:  Effects of microbial inoculants on wheat straw and urea during composting at static state

Authors:  Chen, Shengnan1 ; Gu, Jie2 ; Gao, Hua2 ; Qin, Qingjun2 ; Zhang, Sheqi1 ; Sun, Lining1 ; Zhen, Lisha2 ; Chen, Qianglong2 

Author affiliation:  1  College of Sciences, Northwest Agriculture and Forestry University, Yangling 712100, China

2  College of Resources and Environment, Northwest Agriculture and Forestry University, Yangling 712100, China

Corresponding author:  Gao, H. (gaohua929@163.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  198-201

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 objective of the study was to research the potential mechanism of microbial inoculants on the static agricultural waste composting process. An experiment was conducted with mixed materials of wheat straw and urea to study the changes of temperature and activities of hydrolase during composting at static state. The results revealed that the highest temperature of three treatments, under the conditions of adding microbial inoculants which was activated by glucose (G+J), adding microbial inoculants (J) and no microbial inoculants (CK), were 66.0°C, 67.1°C and 59.5°C, respectively, and the temperature of G+J above 50°C lasted for 240 h, those of J and CK were 120 h and 96 h respectively during the whole composting process. The peak value of the cellulose enzyme activity in the treatment of G+J was observed at the nigth day, and was earlier than that of J and CK for three days and six days, among them the values were 334.37, 271.59 and 236.67 mg/(g·d), respectively. The peak values of sucrose enzyme in the treatments of G+J and J were 2.53 times and 2.33 times as much as that of CK, respectively. The activities of urea enzyme in three treatments were lower than 20.00 mg/(g·d) after 23 days. Correlation analyses showed that the activities of cellulose enzyme were negatively related to the temperature (P>0.05) of the three treatments, however, not significantly related. And the activity of sucrose enzyme in the treatment of G+J was greatly significantly negatively related to the temperature, and that of J was significantly negatively related to the temperature. The activities of urea enzyme were siginificantly negatively or greatly siginificantly negatively related to the temperature of the three treatments (P < 0.05, P < 0.01). The results indicate that microbial inoculants can change the temperature and activities of hydrolase during the composting process.

Number of references:  18

Main heading:  Waste treatment

Controlled terms:  Agricultural wastes  -  Cellulose  -  Enzyme activity  -  Enzymes  -  Glucose  -  Metabolism  -  Sugar (sucrose)  -  Urea

Uncontrolled terms:  Activities of hydrolase  -  Composting process  -  Correlation analysis  -  Highest temperatures  -  Microbial inoculants  -  Mixed materials  -  Peak values  -  Potential mechanisms  -  Static state  -  Wheat straws

Classification code:  822.3 Food Products  -  821.5 Agricultural Wastes  -  815.1.1 Organic Polymers  -  811.3 Cellulose, Lignin and Derivatives  -  804.1 Organic Compounds  -  801.2 Biochemistry  -  461.9 Biology  -  461.2 Biological Materials and Tissue Engineering  -  452.4 Industrial Wastes Treatment and Disposal

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  17.   Accession number:  20091912077121

Title:  Relationship between the capacity of ozone generator and ozone concentration accumulated in two types of cold storage rooms

Authors:  Wang, Wensheng1 ; Yan, Shijie2 ; Dong, Chenghu1 ; Chen, Cunkun1, 3 

Author affiliation:  1  National Engineering and Technology Research Center for Preservation for Agricultural Products, Tianjin 300384, China

2  Department of Food Science, Tianjin Agricultural University, Tianjin 300384, China

3  Food Institute of Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin 300222, China

Corresponding author:  Wang, W. (wang_wensheng@163.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  291-294

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:  Cold storage combined with ozone treatment is a new method used in storage of fruits and vegetables. It is important to determine the concentrations of ozone produced by ozone generators with different capacities applied in different types of cold storage rooms for fruits and vegetables. The concentrations of ozone produced by three kinds of ozone generators (ozone yield: 0.2, 0.49 and 0.94 g/h, respectively) applied in two different types of cold storage rooms (volume of 100 m3 and temperature of (0 ± 0.5)°C) were investigated. The results showed that the capacity of ozone generator had a significant influence on the ozone concentrations, which became higher as the capacity of ozone generator increased. The ozone concentration reached the maximum in Controlled Atmosphere(CA) storage room at 120~140 min and in brick masonry cold storage room at 60~90 min, then the ozone concentrations kept constant at the level of maximum concentration. In the CA storage room, the maximum ozone concentrations produced by the ozone generators (ozone yield: 0.94, 0.49 and 0.2 g/h, respectively) were 1.37, 0.71 and 0.30 mg/m3, respectively, and the correlation coefficients of regression curves between ozone concentrations and time were 0.9234, 0.9252 and 0.9689, respectively. While in the brick masonry cold storage room, the maximum ozone concentrations were 1.25, 0.62 and 0.23 mg/m3, respectively, and the correlation coefficients of regression curves were 0.7293, 0.8816 and 0.9105, respectively. The concentration of ozone accumulated in CA storage room was remarkably higher than that in brick masonry cold storage room.

Number of references:  15

Main heading:  Ozone

Controlled terms:  Brick  -  Brick buildings  -  Brickmaking  -  Cold storage  -  Concentration (process)  -  Foundations  -  Fruits  -  Gas generators  -  Protective atmospheres  -  Refrigerators

Uncontrolled terms:  Brick masonries  -  Cold storage room  -  Concentration of  -  Controlled atmospheres  -  Correlation coefficients  -  Ozone concentrations  -  Ozone generators  -  Ozone treatments  -  Ozone yields  -  Regression curves

Classification code:  694.4 Storage  -  802.1 Chemical Plants and Equipment  -  802.3 Chemical Operations  -  644.3 Refrigeration Equipment and Components  -  804 Chemical Products Generally  -  821.4 Agricultural Products  -  914.1 Accidents and Accident Prevention  -  804.2 Inorganic Compounds  -  538.2 Welding  -  405 Construction Equipment and Methods; Surveying  -  414 Masonry Materials  -  414.1 Brickmaking  -  402 Buildings and Towers  -  414.2 Brick Materials  -  522 Gas Fuels  -  538.1.1 Soldering  -  483.2 Foundations

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  18.   Accession number:  20091912077116

Title:  Effects of 2, 6-dichloroisonicotinic acid treatments on postharvest quality of mango fruits

Authors:  Zeng, Kaifang1, 2 ; Jiang, Weibo2 

Author affiliation:  1  College of Food Science, Southwest University, Chongqing 400715, China

2  College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China

Corresponding author:  Zeng, K.

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

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:  The objective of this work was to evaluate effects of 2,6-dichloroisonicotinic acid (INA) on the quality of harvested mango fruit (Mangifera indica L. cv. 'Zihua'). Mango fruits were dipped into 20, 100 mg/L INA solution and water (control) under vacuum infiltration for two minutes at a low pressure of 0.08 MPa and for additional ten minutes at air pressure, and then dried in the air and stored at 13°C, with relative humidity of 85%~95%. Fruits treated with 20 and 100 mg/L INA solution maintained higher firmness and ascorbic acid content than those of the control fruits. At the same time, INA solution treatment delayed the colour change of mango fruit peel. The decay incidence and decay severity of fruits were effectively reduced by INA treatments. However, INA treatments had little influence on total soluble solids content and titratable acid level during the storage of mango fruits. These results suggested that INA treatments had the beneficial effect on improving postharvest quality and delaying ripening in the storage of mango fruits.

Number of references:  19

Main heading:  Quality control

Controlled terms:  Atmospheric humidity  -  Atmospheric pressure  -  Fruits  -  Humidity control  -  Ketones  -  Organic acids  -  Quality assurance  -  Quality function deployment  -  Total quality management

Uncontrolled terms:  2,6-dichloroisonicotinic acid  -  Acid treatments  -  Air pressures  -  Ascorbic acids  -  Beneficial effects  -  Colour changes  -  Fruit peels  -  Low pressures  -  Mangifera indica  -  Mango   -  Postharvest qualities  -  Relative humidities  -  Solution treatments  -  Storage  -  Titratable acids  -  Total soluble solids contents  -  Vacuum infiltrations

Classification code:  913.3 Quality Assurance and Control  -  912.2 Management  -  821.4 Agricultural Products  -  922.2 Mathematical Statistics  -  804.1 Organic Compounds  -  443.1 Atmospheric Properties  -  402 Buildings and Towers  -  643.3 Air Conditioning

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  19.   Accession number:  20091912077109

Title:  Spatial variability of soil properties and evaluation index for degradation in gold placer deposit mined land, Tibet plateau

Authors:  Xian, Jishen1, 2, 3 ; Yang, Zhong1, 3 ; Xiong, Donghong1, 3 ; Luo, Yong1, 2, 3 

Author affiliation:  1  Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China

2  Graduate University of the Chinese Academy of Sciences, Beijing 100049, China

3  Key laboratory of Mountain Hazards and Earth Surface processes, Chinese Academy of Sciences, Chengdu 610041, China

Corresponding author:  Yang, Z. (yangzhong@imde.ac.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  230-236

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 reveal the laws of spatial variability of soil properties and to find out the evaluation index for degradation degrees of soil in gold placer deposit mined land, the spatial variability of soil properties and the evaluation index for degradation degrees of soil in Segong gold placer deposit mined land in Ritu County, Tibet plateau were studied in the paper. The soil samples were collected from 0-40 cm surface layer, and after the field measurement and laboratory analysis, the methods of cluster analysis and principal component analysis were applied to study the soil variability and the evaluation index for soil degradation degrees, by using soft wares as SPSS and ARCVIEW. The results showed that: 1) the soil samples could be divided into four clusters, namely non-disturbance, slight disturbance, moderate disturbance and severe disturbance, corresponding to the four different soil degradation degrees, respectively. They were distributed as one concentric circle centered by the severe disturbance zone in the horizontal surface, whose boundaries could be identified clearly. And the closer to the inner circles, the more severely the soil deteriorated, and thus the greater the degradation degree was. 2) Soil gravel content, which was easily measured in field, was found to have significant correlation with other soil properties such as soil organic matter. Thus it was determined as the evaluation index for the soil degradation degrees. According to the gravel content, the classification criterion of various soil gradation degrees was identified as: the soil, whose gravel content [0, 45%] belonged to non-degradation,(45%, 55%] belonged to slight degradation,(55%~60%] belonged to moderate degradation and (60%, 100%] belonged to severe degradation. These results provide scientific basis for restoration and improvement of degraded soil in mined land.

Number of references:  23

Main heading:  Soil surveys

Controlled terms:  Cluster analysis  -  Degradation  -  Gold  -  Gravel  -  Land reclamation  -  Mining  -  Organic compounds  -  Placers  -  Principal component analysis  -  Soils   -  Wireless telecommunication systems

Uncontrolled terms:  Arcview  -  Classification criterions  -  Concentric circles  -  Degradation degrees  -  Degraded soils  -  Disturbance zones  -  Evaluation index  -  Field measurements  -  Gravel contents  -  Horizontal surfaces   -  In fields  -  Laboratory analysis  -  Soil degradations  -  Soil gradations  -  Soil organic matters  -  Soil properties  -  Soil samples  -  Soil variabilities  -  Spatial variability  -  Spatial variability of soil properties   -  Surface layers  -  Tibet plateau

Classification code:  716 Telecommunication; Radar, Radio and Television  -  717 Optical Communication  -  723 Computer Software, Data Handling and Applications  -  802.2 Chemical Reactions  -  804.1 Organic Compounds  -  922 Statistical Methods  -  922.2 Mathematical Statistics  -  547.1 Precious Metals  -  406.2 Roads and Streets  -  442.2 Land Reclamation  -  481.1 Geology  -  482.2 Minerals  -  483.1 Soils and Soil Mechanics  -  483.2 Foundations  -  502.1 Mine and Quarry Operations

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  20.   Accession number:  20091912077108

Title:  Multi-scale spatial structure of heavy metals in Beijing cultivated soils

Authors:  Huo, Xiaoni1, 3 ; Li, Hong2 ; Zhang, Weiwei1 ; Sun, Danfeng1 ; Zhou, Liandi2 ; Li, Baoguo1 

Author affiliation:  1  College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China

2  Institute of Comprehensive Research, Beijing Academy of Agriculture and Forestry Sciences, Beijing 10097, China

3  Key Laboratory of Land Use, Ministry of Land and Resources, Beijing 100035, China

Corresponding author:  Sun, D. (sundf@cau.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  223-229

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 effectively reveal the spatial distribution characteristics of soil heavy metals and provide scientific basis for environmental quality assessment in Beijing cultivated soils, geo-statistics was used to explore the scale effect of spatial structure of heavy metals in Beijing cultivated soils. The results showed that spatial structure of Cr, Ni, Zn and Hg had distinct dependence on spatial scale. According to the optimality test of theoretical semi-variance function, the spatial structure of Cr, Ni, Zn and Hg could be described fully by multi-scale nested model. In addition, the spatial interpolation accuracy of Cr, Ni, Zn and Hg using the multi-scale nested model was higher than that using the ordinary Kriging at a single scale. Therefore, the multi-scale nested model can estimate the spatial distribution characteristics of soil heavy metals more effectively than the ordinary Kriging method.

Number of references:  30

Main heading:  Soil surveys

Controlled terms:  Chromium  -  Geologic models  -  Mercury (metal)  -  Metals  -  Nickel  -  Size distribution  -  Soils  -  Structural metals  -  Zinc

Uncontrolled terms:  Beijing  -  Cultivated soils  -  Environmental quality assessments  -  Geo-statistics  -  Multi-scale  -  Optimality tests  -  Ordinary kriging  -  Scale effects  -  Spatial distributions  -  Spatial interpolations   -  Spatial scale  -  Spatial structure  -  Variance functions

Classification code:  933.1 Crystalline Solids  -  543.1 Chromium and Alloys  -  546.3 Zinc and Alloys  -  548.1 Nickel  -  549.3 Others, including Bismuth, Boron, Cadmium, Cobalt, Mercury, Niobium, Selenium, Silicon, Tellurium and Zirconium  -  922.2 Mathematical Statistics  -  931.2 Physical Properties of Gases, Liquids and Solids  -  531.2 Metallography  -  483.1 Soils and Soil Mechanics  -  481.1 Geology  -  423 Non Mechanical Properties and Tests of Building Materials  -  415.1 Metal Structural Materials  -  406.2 Roads and Streets  -  531 Metallurgy and Metallography

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  21.   Accession number:  20091912077069

Title:  High yield indicators of greenhouse tomato under non-pressure irrigation

Authors:  Zhao, Weixia1 ; Cai, Huanjie1 ; Shan, Zhijie2 ; Chen, Xinming1 ; Wang, Jian1 

Author affiliation:  1  Key Laboratory of Agricultural Soil and Water Engineering, Northwest Agriculture and Forestry University, Yangling 712100, China

2  Institute of Soil and Water Conservation, Yangling 712100, China

Corresponding author:  Cai, H. (caihj@nwsuaf.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  16-21

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:  Taking the 20 cm diameter pan evaporation as the calculation reference for irrigation water, the greenhouse tomato yield and the morphological indicators were studied with different crop-pan coefficients (Kcp) under non-pressure irrigation technology. Taking the stem diameter, stem height, above-ground fresh weight, above-ground dry weight and root dry weight as the monomial indicators, the direct and indirect path coefficients among these indicators and yield were calculated through path analysis. Results indicated that when Kcp was equal to 1.0-1.2, the irrigation water could improve tomato yield obviously, but when Kcp was equal to 0.2~1.0, it had less effect on tomato yield. The irrigation water had greater effect on tomato stem diameter than that on stem height. The relationships among stem diameter, above-ground fresh weight, above-ground dry weight, root dry weight and yield were obviously significant. Stem diameter and root dry weight could be considered as the monomial indicators for evaluating the high tomato yield, but above-ground fresh weight and above-ground dry weight had an indirect influence on tomato yield through the interaction with other indicators. Through the analysis of root-shoot ratio which was a relatively high yield indicator, it showed that the irrigation water influenced the distribution ratio of root system in different soil layers and its total development. High yield of tomato can be obtained when the root-shoot ratio is maintained in a range. Results provide guidance to cultivate tomato with high yield morphological indicators.

Number of references:  16

Main heading:  Irrigation

Controlled terms:  Conductive plastics  -  Crops  -  Curing  -  Forestry  -  Fruits  -  Greenhouses  -  Regression analysis  -  Water analysis  -  Water supply  -  Weighing

Uncontrolled terms:  Distribution ratios  -  Dry weights  -  Fresh weights  -  Greenhouse tomatoes  -  High yields  -  Indirect paths  -  Irrigation waters  -  Non-pressure irrigation  -  Pan evaporations  -  Path analysis   -  Path coefficient  -  Root dry weights  -  Root systems  -  Root-shoot ratios  -  Soil layers  -  Stem diameters  -  Stem heights  -  Tomato  -  Tomato yields  -  Yield

Classification code:  818.3 Rubber and Elastomer Processing  -  821.0 Woodlands and Forestry  -  821.3 Agricultural Methods  -  821.4 Agricultural Products  -  821.6 Farm Buildings and Other Structures  -  922.2 Mathematical Statistics  -  943.3 Special Purpose Instruments  -  817.1 Polymer Products  -  402.1 Industrial and Agricultural Buildings  -  445.2 Water Analysis  -  446.1 Water Supply Systems  -  708.2 Conducting Materials  -  801 Chemistry  -  802.2 Chemical Reactions  -  815.1 Polymeric Materials

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  22.   Accession number:  20091912077111

Title:  Test and comprehensive model for non-destructive detection of egg freshness

Authors:  Wei, Xiaobiao1 ; Wang, Shucai1 

Author affiliation:  1  College of Engineering and Technology, Huazhong Agricultural University, Wuhan 430070, China

Corresponding author:  Wang, S. (wsc01@mail.hzau.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  242-247

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 enhance the veracity of egg freshness non-destructive detection, a comprehensive model for non-destructive detection of egg freshness was developed, which applied image parameters reflecting egg inner color and the acoustics feature parameters acquired by knocking on eggshell. The parameters of two detection methods could be compensated and corrected each other. The lightness of egg color and coefficient of egg shape were obtained with the computer vision device. The power spectral area, formant frequency and the X center of mass were obtained by acoustics analysis. And corresponding egg freshness (Haugh unit) could be acquired through the test. Multiple linear regression model was set up by sample data based on image parameters and acoustics feature parameters. The optimal correlations between egg freshness and its image characteristic parameters and acoustics feature parameters were obtained. The test results show that the correct recognition rate of egg freshness of the model is 92%.

Number of references:  16

Main heading:  Acoustics

Controlled terms:  Agricultural products  -  Computer vision  -  Linear regression  -  Thermonuclear reactions

Uncontrolled terms:  Center of mass  -  Comprehensive and non-destructive examination  -  Comprehensive models  -  Detection methods  -  Egg  -  Feature parameters  -  Formant frequencies  -  Freshness  -  Image characteristics  -  Image parameters   -  Multiple linear regression models  -  Non-destructive detections  -  Optimal correlations  -  Power spectral  -  Recognition rates  -  Sample datum  -  Test results

Classification code:  922.2 Mathematical Statistics  -  821.4 Agricultural Products  -  751 Acoustics, Noise. Sound  -  932.2.1 Fission and Fusion Reactions  -  741.2 Vision  -  723.5 Computer Applications  -  621.2 Fusion Reactors  -  731.6 Robot Applications

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  23.   Accession number:  20091912077106

Title:  Land use changes and their ecological effects in urban-rural ecotone

Authors:  Yu, Kaiqin1 ; Feng, Yongjun1 ; Zheng, Jiuhua1 ; Li, Xinju1, 2 ; Li, Zheng1 

Author affiliation:  1  College of Resources and Environment, Shandong Agricultural University, Tai'an 271000, China

2  Institute of Land Reclamation and Ecology, China University of Mining and Technology(Beijing), Beijing 100083, China

Corresponding author:  Feng, Y. (fyj@sdau.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  213-218

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 land use data of Daiyue District, Tai'an in 1990 and 2003, the effects of land use changes to ecosystem service values in urban-rural ecotone were studied by the ecosystem service value coefficient method which Costanza put forward based on GIS and field survey comprehensively. The results indicated that the areas of construction land, orchard land and water land increased while those of forest land, cultivated land and unused land decreased from 1990 to 2003. The ecosystem service values changed with the changes of the different land use types. The ecosystem service function values dropped slightly in atmosphere regulation function, climate regulation function, waste treatment function, soil formation function and food production function, while increased in the entertainment function, erosion control and raw materials. The rapid development of the city affected the ecosystem environment in urban-rural ecotone to a certain degree.

Number of references:  17

Main heading:  Ecosystems

Controlled terms:  Climate control  -  Economics  -  Environmental engineering  -  Industrial waste treatment  -  Land use

Uncontrolled terms:  Coefficient methods  -  Construction lands  -  Cultivated lands  -  Different land use types  -  Ecological effects  -  Ecological service value  -  Ecosystem environments  -  Ecosystem services  -  Erosion controls  -  Field surveys   -  Food productions  -  Forest lands  -  Land use change  -  Rapid development  -  Regulation functions  -  Soil formations  -  Urban rural integration area

Classification code:  971 Social Sciences  -  911.2 Industrial Economics  -  731.2 Control System Applications  -  454.3 Ecology and Ecosystems  -  454 Environmental Engineering  -  452.4 Industrial Wastes Treatment and Disposal  -  442.2 Land Reclamation  -  403 Urban and Regional Planning and Development  -  402 Buildings and Towers

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  24.   Accession number:  20091912077100

Title:  Preparation of supported Cs2O solid base catalysts and performance of catalyzing transesterification reaction

Authors:  Song, Huamin1 ; Li, Jihong2 ; Xu, Guizhuan1 ; Zhang, Bailiang1 ; Shang, Sheng1 

Author affiliation:  1  Key Laboratory of Renewable Energy of Ministry of Agriculture, College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China

2  National Engineering Laboratory of Biomass Power Generation Equipment, School of Renewable Energy, North China Electric Power University, Beijing 102206, China

Corresponding author:  Zhang, B. (hauzblo@yahoo.com.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  189-192

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:  Supported Cs2O solid base catalysts were prepared with Cs2CO3 as catalyst precursors and γ-Al2O3, MgO, CaO, TiO2, SiO2 and NaY molecular sieve as supports at calcination temperature of 700°C. These catalysts were used to catalyze transesterification reaction for biodiesel production from rapeseed oil. The results showed that solid super bases could be prepared with γ-Al2O3, MgO and CaO, and γ-Al2O3 was the optimal support considering both transesterification ratio and separation performance. The optimal process conditions preparing solid base with Cs2CO3 and γ-Al2O3 were as follows: calcination temperature of 700°C, calcination time of 5 h and atmosphere of N2. Transesterification ratio reached 95.5% when using the catalyst prepared under these optimized conditions.

Number of references:  11

Main heading:  Catalyst supports

Controlled terms:  Aluminum  -  Biodiesel  -  Calcination  -  Catalysis  -  Cesium  -  Esterification  -  Molecular sieves  -  Optimization  -  Sieves  -  Silicon compounds   -  Sodium compounds  -  Transesterification  -  Vegetable oils

Uncontrolled terms:  Biodiesel productions  -  Calcination temperatures  -  Calcination time  -  Catalyst precursors  -  Catalyze transesterification  -  Cs2O  -  Optimal process  -  Optimized conditions  -  Rape seed oil  -  Separation performance   -  Solid base  -  Solid base catalysts  -  Transesterification reaction

Classification code:  802.2 Chemical Reactions  -  802.3 Chemical Operations  -  803 Chemical Agents and Basic Industrial Chemicals  -  921.5 Optimization Techniques  -  804 Chemical Products Generally  -  804.2 Inorganic Compounds  -  822.3 Food Products  -  804.1 Organic Compounds  -  802.1 Chemical Plants and Equipment  -  712.1.2 Compound Semiconducting Materials  -  405.1 Construction Equipment  -  502.2 Mine and Quarry Equipment  -  523 Liquid Fuels  -  541.1 Aluminum  -  549.1 Alkali Metals  -  605 Small Tools and Hardware

Database:  Compendex

 Compilation and indexing terms, © 2009 Elsevier Inc.

  25.   Accession number:  20091912077112

Title:  Optimization of technical parameters of microwave-vacuum drying of Chinese gooseberry slices

Authors:  Zhu, Dequan1 ; Wang, Jixian1 ; Qian, Liangcun2 ; Zhou, Jiemin1 ; Wang, Shuo1 ; Zhu, Dewen1 

Author affiliation:  1  School of Engineering, Anhui Agricultural University, Hefei 230036, China

2  School of Natural Sciences, Anhui Agricultural University, Hefei 230036, China

Corresponding author:  Wang, J. (wangjixian@ahau.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  248-252

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 experiments of microwave-vacuum drying of Chinese gooseberry slices were conducted to improve the drying productivity and the quality of dried fruit, and decrease the drying energy consumption. Through the single factor experiments, the influences of microwave power applied, sample thickness and pressure in drying chamber on the microwave drying characteristics were studied. By using the quadratic regression orthogonal experimental method with three factors and five levels, the relationships between the microwave power applied, the sample thickness, the pressure in drying chamber and the rehydration ratios, chlorophyll and vitamin C retention ratios of dried Chinese gooseberry slices, as well as the energy consumption of drying process, were analyzed, and the regression mathematical models for experimental indices and factors were established. At last, the optimal combination of the parameters for the microwave-vacuum drying technology of Chinese gooseberry slices was obtained through nonlinear optimization method with many targets. They were as follows: drying power of 5.54 W/g, material thickness of 6.16 cm and vacuum pressure of 76.8 Pa. Under these conditions, the higher quality of dried Chinese gooseberry slices can be maintained after drying process, and energy consumption is low.

Number of references:  15

Main heading:  Curing

Controlled terms:  Agricultural products  -  Chlorophyll  -  Dewatering  -  Drying  -  Microwave generation  -  Microwave heating  -  Microwave power transmission  -  Optimization  -  Porphyrins  -  Quality assurance   -  Quality control  -  Quality function deployment  -  Total quality management  -  Vacuum  -  Vacuum technology

 Uncontrolled terms:  Chinese gooseberry slice  -  Dried fruits  -  Drying chambers  -  Drying energy consumption  -  Drying power  -  Drying process  -  Energy consumption  -  Experimental methods  -  Material thickness  -  Microwave drying   -  Microwave power  -  Microwave-vacuum drying  -  Nonlinear optimization methods  -  Optimal combinations  -  Quadratic regressions  -  Rehydration ratios  -  Sample thickness  -  Vacuum pressures  -  Vitamin c retentions

Classification code:  922.2 Mathematical Statistics  -  802.3 Chemical Operations  -  804.1 Organic Compounds  -  815.1 Polymeric Materials  -  818.3 Rubber and Elastomer Processing  -  821.4 Agricultural Products  -  912.2 Management  -  913.3 Quality Assurance and Control  -  921.5 Optimization Techniques  -  802.2 Chemical Reactions  -  633 Vacuum Technology  -  642.1 Process Heating  -  706.1.1 Electric Power Transmission  -  801.2 Biochemistry  -  711.1 Electromagnetic Waves in Different Media  -  714.1 Electron Tubes  -  714.2 Semiconductor Devices and Integrated Circuits  -  713.2 Oscillators

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  26.   Accession number:  20091912077087

Title:  Dynamic modeling and external characteristic simulation of three-cylinder internal combustion water pump

Authors:  Zhao, Hong1 ; Zhang, Tiezhu2 ; Zhang, Hongxin1 ; Liu, Guoqing1 

Author affiliation:  1  College of Mechanical and Electronic Engineering, Qingdao University, Qingdao 266071, China

2  Headmaster's Office, Qingdao University, Qingdao 266071, China

Corresponding author:  Zhao, H. (qdlizh@163.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  114-118

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 dynamic analysis of main body and valve type orifice system was conducted and the dynamic models were developed for studying external characteristics of three-cylinder internal combustion water pump. Fuel consumption, effective thermal efficiency and running unevenness at full throttling were simulated through AVL Boost and MATLAB software. The curves of simulation were drawn. The external characteristics of three-cylinder internal combustion water pump were compared with those of engine driving pump system. The results show that fuel consumption and running unevenness of three-cylinder internal combustion water pump are higher than those of engine driving pump system while effective thermal efficiency of three-cylinder internal combustion water pump is less than that of engine driving pump system. Within 1600~1800 r/min of higher volumetric efficiency, fuel consumption was 17 percent lower than engine driving pump system. Fuel consumption at full throttling was tested and compared between experiment and simulation. Relative errors were all within 5 percent and it proved that the models and simulations were correct.

Number of references:  15

Main heading:  Engine cylinders

Controlled terms:  Combustion  -  Computer software  -  Cylinders (shapes)  -  Dynamic analysis  -  Engines  -  MATLAB  -  Pumps  -  Smoke  -  Steel metallurgy  -  Thermal effects   -  Thermochemistry  -  Water analysis

Uncontrolled terms:  Dynamic modeling  -  Experimental verification  -  External characteristic simulation  -  Internal combustion water pumps  -  Matlab- softwares  -  Pump systems  -  Relative errors  -  Thermal efficiencies  -  Three-cylinder water pump  -  Volumetric efficiencies

Classification code:  641.1 Thermodynamics  -  654.2 Rocket Engines  -  723 Computer Software, Data Handling and Applications  -  723.1.1 Computer Programming Languages  -  723.5 Computer Applications  -  641 Heat and Mass Transfer; Thermodynamics  -  801 Chemistry  -  801.4 Physical Chemistry  -  804 Chemical Products Generally  -  921 Mathematics  -  951 Materials Science  -  801.3 Colloid Chemistry  -  618.2 Pumps  -  421 Strength of Building Materials; Mechanical Properties  -  422.2 Test Methods  -  445.2 Water Analysis  -  451.1 Air Pollution Sources  -  521.1 Fuel Combustion  -  408.2 Structural Members and Shapes  -  531 Metallurgy and Metallography  -  545.3 Steel  -  612 Engines  -  612.1.1 Internal Combustion Engine Components  -  617.3 Steam Engines  -  531.1 Metallurgy

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  27.   Accession number:  20091912077074

Title:  Method to calculate the energy consumption index of pump operation under variable working conditions

Authors:  Tang, Yue1 ; Qin, Wuxuan1 ; Yuan, Shouqi1 

Author affiliation:  1  Engineering Research Centre for Fluid Machinery, Jiangsu University, Zhenjiang 212013, China

Corresponding author:  Qin, W. (qinwuxuan111@163.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  46-49

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 energy consumption of pump operation under variable working conditions rationally, state graph of pump operation based on pump characteristic curve and flow rate variety curve has been established in three dimensions. A model to calculate the energy consumption index of pump operation under variable working conditions has been established, which can solve the problem of existent model. In the model, energy consumption of pump operation in a time-interval was calculate by a definite integral, product of water supply amount and head was calculate by a double integral. The energy consumption index of pump operation of a pump station was calculate by the model. The results showed that it can calculate the energy consumption of pump operation under variable working conditions rationally.

Number of references:  19

Main heading:  Pumps

Controlled terms:  Integral equations  -  Water supply

Uncontrolled terms:  Definite integrals  -  Double integrals  -  Energy consumption calculation  -  Energy consumption index  -  Pump characteristics  -  Pump operations  -  Pump stations  -  State graphs  -  Surface integral equations  -  Three dimensions   -  Water supply amounts  -  Working conditions

Classification code:  446.1 Water Supply Systems  -  618.2 Pumps  -  921.2 Calculus

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  28.   Accession number:  20091912077101

Title:  Thermogravimetric properties and kinetic analysis of wheat straw

Authors:  Yang, Qing1 ; Wu, Shubin1 

Author affiliation:  1  State Key Lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China

Corresponding author:  Wu, S. (shubinwu@scut.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  193-197

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:  Thermogravimetric properties of the wheat straw were analyzed. The effects of heating rates and the existence of Ni-catalyst on the thermogravimetric properties of the material were investigated. Weight loss of wheat straw was not related with the heating rates at the range of 220.6~391.2°C, however, in order to obtain the same weight loss rate, relevant temperature increased with the enhancement of heating rates. When temperature was above 391.2°C, thermogravimetric law was not impacted essentially by the heating rates with 20°C,/min or higher, however, the maximum weight loss took place when the heating rate was 10°C,/min. Weight loss of wheat straw was not influenced obviously by the Ni-catalyst. Thermogravimetric dynamic parameters of wheat straw were calculated without catalyst and with 0.5% Ni-catalyst by the methods of Kissinger and Ozawa, respectively; apparent activation energies of wheat straw were 93.92, 119.80, 99.14, 123.70 kJ/mol, and frequency factor lnA were 17.82, 23.02 9.30, 24.03 min-1, respectively.

Number of references:  15

Main heading:  Thermogravimetric analysis

Controlled terms:  Activation energy  -  Catalysis  -  Catalysts  -  Grain (agricultural product)  -  Heating  -  Heating rate  -  Nickel

Uncontrolled terms:  Apparent activation energies  -  Dynamic parameters  -  Frequency factors  -  Kinetic analysis  -  Kissinger  -  Weight loss  -  Weight loss rates  -  Wheat straw

Classification code:  931.3 Atomic and Molecular Physics  -  821.4 Agricultural Products  -  804 Chemical Products Generally  -  803 Chemical Agents and Basic Industrial Chemicals  -  802.2 Chemical Reactions  -  801.4 Physical Chemistry  -  801 Chemistry  -  643.1 Space Heating  -  642.1 Process Heating  -  641.2 Heat Transfer  -  548.1 Nickel

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  29.   Accession number:  20091912077078

Title:  Influences of starting fuel quantity and main injection advance angle on starting characteristics of common rail diesel engine

Authors:  Dong, Wei1 ; Yu, Xiumin1 ; Yu, Hongyang2 ; Zhang, Bin3 ; Zhou, Ji1 

Author affiliation:  1  College of Automotive Engineering, Jilin University, Changchun 130022, China

2  Aviation University of Air force, Changchun 130025, China

3  Technical Centre of Dongfeng Auto Group Stock Co., Ltd., Wuhan 430056, China

Corresponding author:  Dong, W.

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

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:  The test and control systems of a high pressure common rail diesel engine were built based on a second generation of high pressure common rail fuel system of BOSCH. The influence of common rail system's control parameters (such as starting fuel quantity, main injection advance angle) on starting characteristics was researched through experiments, and the varying tendencies of start time and HC emission were summarized. Test results show that: with the increase of the starting fuel quantity, the start time firstly decreases and then increases while HC emission increases all the time; There is an optimum value for the main injection advance angle, which makes start time shortest and HC emission lowest. If the main injection advance angle changes against that value, starting performance will be lower with longer start time and high HC emission.

Number of references:  15

Main heading:  Diesel engines

Controlled terms:  Control system analysis  -  Fuel injection  -  Fuels  -  Leakage (fluid)

Uncontrolled terms:  Common rail diesel engine  -  Common rail systems  -  Control parameters  -  Fuel quantities  -  HC emissions  -  High pressure common rail diesel engines  -  High pressure common rails  -  Main injection advance angle  -  Optimum values  -  Second-generations   -  Starting characteristics  -  Starting performance  -  Test results

Classification code:  619.1 Pipe, Piping and Pipelines  -  612.2 Diesel Engines  -  524 Solid Fuels  -  523 Liquid Fuels  -  731.1 Control Systems  -  522 Gas Fuels  -  483.1 Soils and Soil Mechanics  -  452.3 Industrial Wastes  -  452.1 Sewage  -  521 Fuel Combustion and Flame Research

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.

  30.   Accession number:  20091912077082

Title:  Rice transplanting machine for young seedling of bowl-seedling tray made of plant

Authors:  Chen, Henggao1 ; Wang, Chun1 ; Zhang, Wei1 ; Liu, Tianxiang1 ; Jin, Zhongbo1 

Author affiliation:  1  College of Engineering, Heilongjiang August First Land Reclamation University, Daqing 163319, China

Corresponding author:  Chen, H. (chgnongda@126.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  3

Issue date:  March 2009

Publication year:  2009

Pages:  88-92

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 transplanting machine of bowl young seedling made of plant was manufactured according cultivated technical demands. The research was focused on six rows rice seedling transplanting machine which was homemade in Yanji, and the bench tests and simulation tests for assembled whole machine of vertical feed mechanism, horizontal feeding mechanism, setting for supporting and cutting and orientation of the separtated seeding, and disposal of ort after planting were done to the machine. The tests were done for many years and the results showed that the research reached demands for planting, and the rate of injured seedlings was 1.8%, the downfallen rate was 3.2%, the misplanting rate was 2.0% and the passing rate of uniformity was 94.6%. The technical parameters are provided to refit other kinds of rice seedling transplanting machines.

Number of references:  15

Main heading:  Agricultural machinery

Controlled terms:  Agriculture  -  Experiments  -  Grain (agricultural product)  -  Mechanisms

Uncontrolled terms:  Bench tests  -  Bowl young seedling  -  Bowl-seedling tray made of plant  -  Feed mechanisms  -  Feeding mechanisms  -  Rice  -  Rice seedlings  -  Simulation tests  -  Technical demands  -  Transplanting machinery   -  Transplanting machines  -  Whole machines

Classification code:  601.3 Mechanisms  -  821 Agricultural Equipment and Methods; Vegetation and Pest Control  -  821.1 Agricultural Machinery and Equipment  -  821.4 Agricultural Products  -  901.3 Engineering Research

Database:  Compendex

Compilation and indexing terms, © 2009 Elsevier Inc.