1. Accession number: 20092712172613
Title: Effects of vacuum and modified atmosphere packaging on shelf life of salted pike eel (Muraenesox cinereus) fillets
Authors: Zhang, Yinliang1 ; Mao, Duobin1
Author affiliation: 1 School of Food and Biological Engineering, Zhengzhou University of Light Industry,
Corresponding author: Zhang, Y. (zhyinliang@163.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 270-274
Language: English
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: The purpose of the study was to evaluate the shelf life of salted pike eel packaged with air, vacuum and modified atmosphere at
Number of references: 28
Main heading: Quality control
Controlled terms: Bacteriology - Quality assurance - Quality function deployment - Thermoanalysis - Total quality management - Vacuum - Vacuum technology
Uncontrolled terms: Atmosphere packaging - Control groups - Modified atmosphere - Modified atmosphere packaging - N value - pH value - Pike eel - Sensory qualities - Shelf life - Thiobarbituric acid-reactive substances - Total viable counts - Trimethylamine - Vacuum packaging
Classification code: 922.2 Mathematical Statistics - 913.3 Quality Assurance and Control - 912.2 Management - 801.2 Biochemistry - 801 Chemistry - 633 Vacuum Technology - 461.9 Biology
DOI: 10.3969/j.issn.1002-6819.2009.05.050
Database: Compendex
2. Accession number: 20092712172618
Title: Effects of starch on rheological and gel properties of horse-mackerel surimi
Authors: Chen, Haihua1 ; Xue, Changhu1
Author affiliation: 1 College of Food Science and Engineering, Ocean University of China,
Corresponding author: Chen, H. (haihchen@163.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 293-298
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: To investigate the optimum kind and addition level of starch in order to improve the gel qualitiy of horse-mackerel surimi, effects of starch on the rheological and gel properties of horse-mackerel surimi were determined by rheological analysis, texture analysis, whiteness, water-holding capacity and microstructure. Two stages of changes of elastic modulus G' during heating process indicated two stages of thermal denaturation for horse-mackerel surimi by rheological measurement. The first change of G' appeared at the range of 20~
Number of references: 20
Main heading: Starch
Controlled terms: Coagulation - Elastic moduli - Food processing - Gelation - Gels - Microstructure - Pyrolysis - Rheology - Water analysis
Uncontrolled terms: Gel properties - Gel strengths - Heating process - Horse-mackerel - Positive effects - Rheological analysis - Rheological measurements - Rheological properties - Starch addition - Starch molecules - Surimi - Tapioca starch - Texture analysis - Thermal denaturations - Two stage - Water holding capacity - Wheat starch
Classification code: 951 Materials Science - 802.3 Chemical Operations - 804 Chemical Products Generally - 804.1 Organic Compounds - 815.1.1 Organic Polymers - 822.2 Food Processing Operations - 822.3 Food Products - 931.1 Mechanics - 933 Solid State Physics - 802.2 Chemical Reactions - 421 Strength of Building Materials; Mechanical Properties - 422.2 Test Methods - 445.2 Water Analysis - 801.4 Physical Chemistry - 531.2 Metallography - 801 Chemistry - 801.3 Colloid Chemistry - 631.1 Fluid Flow, General
Database: Compendex
3. Accession number: 20092712172579
Title: Data structure and model algorithm of fault diagnosis system of diesel engine
Authors: Zheng, Fatai1 ; Guo, Junjie2
Author affiliation: 1 Department of Mechanic Electronic and Engineering, Zhejiang Business Technology Institute, Ninbo 315012,
2
Corresponding author: Zheng, F. (zftzxn@163.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 78-82
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: In order to realize the minimization of fault diagnosis system of diesel engine and generalization of system-level diagnosis model, a data structure and a model algorithm of fault diagnosis system of diesel engine were presented, which were mainly embodied in machinery fault diagnosis data processing based on extensive research on the algorithm of characteristic value extraction, the algorithm of main characteristic value extraction and the neural network expert system. The software package of machinery fault diagnosis system (MFDS) was developed in combination with MATLAB toolkit. 6135 diesel engine was used for the test. The measured values were studied and diagnosed by MFDS. The results showed that the fault diagnosis system could be used to give the diagnosis results quickly and accurately. The study has practical significance to improve the fault diagnosis theory and level of complicated machinery such as diesel engine.
Number of references: 14
Main heading: Diesel engines
Controlled terms: Algorithms - Data processing - Data structures - Engines - Expert systems - Failure analysis - Fault tolerant computer systems - Industrial research - Mathematical models - MATLAB - Model structures - Neural networks
Uncontrolled terms: Characteristic value - Fault diagnosis - Fault diagnosis systems - Machinery faults - Main characteristics - MATLAB toolkit - Model algorithms - Neural network expert system - System-level diagnosis
Classification code: 921 Mathematics - 723.1.1 Computer Programming Languages - 723.2 Data Processing and Image Processing - 723.3 Database Systems - 723.4 Artificial Intelligence - 723.4.1 Expert Systems - 723.5 Computer Applications - 901.3 Engineering Research - 912.1 Industrial Engineering - 723 Computer Software, Data Handling and Applications - 408 Structural Design - 421 Strength of Building Materials; Mechanical Properties - 461.1 Biomedical Engineering - 722.4 Digital Computers and Systems - 612 Engines - 617.3 Steam Engines - 654.2 Rocket Engines - 612.2 Diesel Engines
Database: Compendex
4. Accession number: 20092712172587
Title: Trajectory tracking of particle material motion on sieve surface based on Mean shift algorithm
Authors: Li, Yaoming1 ; Zhao, Zhan1 ; Zhang, Wenbin1 ; Li, Hongchang1
Author affiliation: 1 Key Laboratory of Modern Agricultural Equipment and Technology,
Corresponding author: Zhao, Z. (zzfoxmail@sina.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 119-122
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: For tracking target particles' motion on air-and-screen cleaning sieve, staining method was used and Mean shift algorithm utilizing the color eigenvector was proposed. Bhattacharyya coefficient was exploited to decide whether the target was occluded. In the frames of regular tracking, the initial point of Mean shift algorithm was predicted by Kalman filter and then the precise position of the target was calculated with Mean shift algorithm. When the occlusion appears, the target motion was regared as a time-invariant system and the position was estimated by Kalman filter. Experiment results show that the algorithm is robust and can track the fast motion target stably with complex background and variant light. The usefull image detection technology was provided for motion law research of granular materials.
Number of references: 16
Main heading: Target tracking
Controlled terms: Air cleaners - Algorithms - Image processing - Imaging systems - Invariance - Kalman filters - Sieves - Targets - Vector quantization
Uncontrolled terms: Bhattacharyya coefficient - Complex background - Eigenvector - Image detection - Initial point - Kernel function - Mean shift - Mean shift algorithm - Motion law - Motion target - Particle materials - Path tracking - Precise position - Screen cleaning - Staining method - Surface-based - Target motions - Time invariant systems - Trajectory tracking
Classification code: 723 Computer Software, Data Handling and Applications - 723.2 Data Processing and Image Processing - 731.1 Control Systems - 741 Light, Optics and Optical Devices - 746 Imaging Techniques - 802.1 Chemical Plants and Equipment - 921 Mathematics - 921.1 Algebra - 932.1.1 Particle Accelerators - 716.2 Radar Systems and Equipment - 405.1 Construction Equipment - 451.2 Air Pollution Control - 502.2 Mine and Quarry Equipment - 605 Small Tools and Hardware - 651.2 Wind Tunnels - 654.1 Rockets and Missiles - 656.1 Space Flight - 703.2 Electric Filters - 716.1 Information Theory and Signal Processing
Database: Compendex
5. Accession number: 20092712172611
Title: Effect of ozone in combination with antagonistic yeast on postharvest gray mold rot incidence in strawberry fruits
Authors: Zhang, Hongyin1 ; Ma, Longchuan1 ; Jiang, Song1 ; Dong, Ying1 ; Zheng, Xiaodong2
Author affiliation: 1 College of Food and Biological Engineering,
2 Department of Food Science and Nutrition,
Corresponding author: Zhang, H. (zhanghongyin126@126.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 258-263
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: In order to search for an alternative to synthetic fungicides for the control of postharvest decay of strawberry fruits, the potential of using ozone in combination with Cryptococcus laurentii (Kufferath) Skinner for the control of postharvest gray mold rot incidence of strawberry fruits was investigated. The results showed that ozone signi?cantly decreased the incidence of gray mold rot in strawberry fruits and inhibited the growth of B. cinerea in vivo and in vitro. After three-day storage, the gray mold rot incidence of strawberry fruits that treated with the combination of ozone and C. laurentii was 29.63%, which was significantly lower than that of the control (70.37%) or the treatments of ozone and C. laurentii as single use (48.15% and 44.44% respectively). The population of the yeast in wounded fruits increased remarkably after inoculation at
Number of references: 28
Main heading: Fruits
Controlled terms: Amino acids - Biocontrol - Molds - Ozone - Yeast
Uncontrolled terms: Antagonistic yeast - Cryptococcus laurentii - Glucanase - Gray mold rots - In-vitro - In-vivo - Kufferath - Phenylalanine ammonia-lyase - Polyphenol oxidase - Postharvest - Postharvest diseases - Strawberry - Strawberry fruits
Classification code: 822.3 Food Products - 821.4 Agricultural Products - 818.4 Rubber Factories and Machinery - 816.2 Plants and Machinery for Plastics and Other Polymers - 812.3 Glass - 804.1 Organic Compounds - 804 Chemical Products Generally - 801.2 Biochemistry - 731.1 Control Systems - 535.2.1 Metal Forming Machines - 462.4 Prosthetics - 461.1 Biomedical Engineering - 461 Bioengineering and Biology
Database: Compendex
6. Accession number: 20092712172573
Title: Relationship between mechanical characteristics and anatomical structures of slope protection plant root
Authors: Zhu, Haili1 ; Hu, Xiasong1, 2 ; Mao, Xiaoqing3 ; Li, Guorong1 ; Zhang, Xingling3 ; Chen, Guichen2
Author affiliation: 1
2 Northwest Plateau Institute of Biology, The Chinese
3 Hydraulic and Electric Power Engineering Department,
Corresponding author: Hu, X.
Pages: 40-46
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Taking
Number of references: 23
Main heading: Shear strength
Controlled terms: Fibers - Slope protection - Tensile strength - Tensile testing - Wood products
Uncontrolled terms: Anatomical features - Anatomical structures - Caragana Korshinskii - Loess area - Mechanical characteristics - Phloem fibers - Plant roots - Qinghai Tibet plateau - Root elongation - Shear tests - Tensile tests - Wood fiber - Wood fibers
Classification code: 817 Plastics and Other Polymers: Products and Applications - 812 Ceramics, Refractories and Glass - 811.2 Wood and Wood Products - 483.1 Soils and Soil Mechanics - 819.4 Fiber Products - 441.1 Dams - 422 Strength of Building Materials; Test Equipment and Methods - 421 Strength of Building Materials; Mechanical Properties - 407.1 Maritime Structures - 422.2 Test Methods
Database: Compendex
7. Accession number: 20092712172622
Title: O2-supplying characteristics of Azolla in controlled close chamber under manned condition
Authors: Chen, Min1 ; Deng, Sufang1 ; Yang, Youquan1 ; Liu, Zhongzhu1
Author affiliation: 1 Agricultural Ecology Institute,
Corresponding author: Chen, M. (chenmin863@163.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 313-316
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Azolla has high growth and propagation rate, strong photosynthetic O2-releasing ability and rich nutrient value. It is able to be used as salad-type vegetable, and can also be cultured on wet bed in multi-layer condition. Hence, it possesses a potential functioning as providing O2, fresh vegetable and absorbing CO2 for Controlled Ecological Life Support System in space. In this study, we try to make clear the O2-providing characteristics of Azolla in controlled close chamber under manned condition in order to lay a foundation for Azolla as a biological component in the next ground simulated experiment and space application. A controlled close test chamber and Azolla wet-culturing devices were built to measure the changes of atmospheric O2-CO2 concentration inside chamber under "Azolla-men" coexisting condition. The results shows that, at 7000-9000 Lx of artificial light intensity, Azolla were grown under wet-culturing condition, people respiration and Azolla photosynthesis complemented each other, the atmospheric O2-CO2 concentration inside chamber maintained equilibration. According to theoretical calculation, about
Number of references: 18
Main heading: Oxygen supply
Controlled terms: Concentration (process) - Life support systems (spacecraft) - Photosynthesis - Space applications
Uncontrolled terms: Artificial light - Atmospheric CO - Azolla - Biological components - Controlled close chamber - Fresh vegetables - High growth - Human survival - Life support systems - Manned test - Nutrient values - Propagation rate - Simulated experiments - Test chambers - Theoretical calculations - Wet bed - Wet-culture
Classification code: 804 Chemical Products Generally - 802.3 Chemical Operations - 802.2 Chemical Reactions - 741.1 Light/Optics - 672.1 Combat Naval Vessels - 656 Space Flight - 655.1 Spacecraft, General - 652.1 Aircraft, General - 545.3 Steel
Database: Compendex
8. Accession number: 20092712172571
Title: Effect of irrigation quota on soil nitrate nitrogen concentration under surge irrigation
Authors: Yin, Juan1, 2 ; Fei, Liangjun3 ; Zhu, Yuefa4
Author affiliation: 1 College of Civil and Conservancy Engineering,
2 Certer of Efficient Irrigation Engineering and Water Resource Control Technology Research,
3
4 Ningxia Tang Lai Ditch Adninistrative Bureau,
Corresponding author: Yin, J. (yj7115@126.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 30-34
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: To study the effects of irrigation quota on nitrate nitrogen transport in the groundwater, based on indoor experiments of fertile solution infiltration, the effects of irrigation quota on the influence of groundwater quality under the condition of
Number of references: 20
Main heading: Irrigation
Controlled terms: Concentration (process) - Groundwater - Groundwater pollution - Groundwater resources - Hydrogeology - Light measurement - Nitrates - Nitrogen - Seepage - Soil mechanics - Water quality
Uncontrolled terms: Concentration of - Ground water level - Groundwater quality - Indoor experiment - Intermittent infiltration - Irrigation quota - Irrigation quotas - Nitrate nitrogen - Shallow groundwater - Solution infiltration - Surge irrigation
Classification code: 941.4 Optical Variables Measurements - 821.3 Agricultural Methods - 804.2 Inorganic Compounds - 804 Chemical Products Generally - 802.3 Chemical Operations - 483.1 Soils and Soil Mechanics - 481.1 Geology - 453.2 Water Pollution Control - 453.1 Water Pollution Sources - 445.2 Water Analysis - 444.2 Groundwater - 441 Dams and Reservoirs; Hydro Development - 407 Maritime and Port Structures; Rivers and Other Waterways
Database: Compendex
9. Accession number: 20092712172599
Title: Estimation of non-point source pollution load in Tumenxigou watershed of Miyun Reservoir
Authors: Zhang, Yan1 ; Zhang, Zhiqiang1 ; Zhang, Junqing1 ; Xie, Baoyuan1 ; Wu, Bin1 ; Wang, Li1 ; Tang, Yin1 ; Liu, En1 ; Qin, Wei1 ; Cheng, Tao1 ; Shi, Honglong2
Author affiliation: 1 Key Laboratory of Soil and Water Conservation and Desertification Combating,
2
Corresponding author: Zhang, Z. (zhiqiangzh@bifu.edu.cn)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 183-191
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Water quality of Miyuan Reservoir affects water quality of the surface drinking water sources in
Number of references: 29
Main heading: Soil pollution
Controlled terms: Agricultural runoff - Crops - Erosion - Fertilizers - Forestry - Land use - Landforms - Plants (botany) - Potable water - Reservoirs (water) - Size distribution - Soil conservation - Soil pollution control - Soils - Surface waters - Water conservation - Water pollution - Water quality - Watersheds
Uncontrolled terms: Broadleaf forest - Castanea mollissima - Channel systems - Coniferous forests - Infiltration capacity - Land Use Planning - Mixed forests - Miyun Reservoir - Non-point source pollution - Organic fertilizers - Overland flow - Per unit - Pinus tabulaeformis - Point source pollution - Pollutant concentration - Pollutant loads - Rainfall event - Robinia pseudo-acacia - Small watershed - Small watersheds - Soil and water conservation - Soil erosion - Soil particles - Spatial distribution - Steep slope - Surface drinking water - Vitex negundo
Classification code: 933.1 Crystalline Solids - 804 Chemical Products Generally - 539.1 Metals Corrosion - 531.2 Metallography - 483.1 Soils and Soil Mechanics - 483 Soil Mechanics and Foundations - 481.1 Geology - 821.0 Woodlands and Forestry - 821.3 Agricultural Methods - 821.4 Agricultural Products - 821.5 Agricultural Wastes - 922.2 Mathematical Statistics - 931.2 Physical Properties of Gases, Liquids and Solids - 821.2 Agricultural Chemicals - 461.9 Biology - 454.2 Environmental Impact and Protection - 403 Urban and Regional Planning and Development - 403.1 Urban Planning and Development - 407 Maritime and Port Structures; Rivers and Other Waterways - 423 Non Mechanical Properties and Tests of Building Materials - 441.2 Reservoirs - 442.2 Land Reclamation - 444 Water Resources - 444.1 Surface Water - 445.2 Water Analysis - 453 Water Pollution - 453.1 Water Pollution Sources - 453.2 Water Pollution Control
Database: Compendex
10. Accession number: 20092712172602
Title: Potentialities evaluation of regional land consolidation based on AHP and entropy weight method
Authors: Ni, Jiupai1 ; Li, Ping1, 2 ; Wei, Chaofu1 ; Xie, Deti2
Author affiliation: 1 College of Resources and Environment,
2 Bureau of Land and Resources of
Corresponding author: Ni, J. (nijiupai@163.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 202-209
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Multi-hierarchy index system for regional land consolidation was established for cultivated land consolidation, virgin land reclamation, disused land reclamation and country residential area consolidation. And land consolidation potentialities were evaluated based on AHP, entropy weight method and synthetically evaluation method in
Number of references: 14
Main heading: Land reclamation
Controlled terms: Analytic hierarchy process - Entropy - Hierarchical systems - Planning - Reclamation - Regional planning
Uncontrolled terms: AHP -
Classification code: 922.2 Mathematical Statistics - 921 Mathematics - 912.2 Management - 731.1 Control Systems - 961 Systems Science - 641.1 Thermodynamics - 442.2 Land Reclamation - 403.2 Regional Planning and Development - 403 Urban and Regional Planning and Development - 452.4 Industrial Wastes Treatment and Disposal
Database: Compendex
11. Accession number: 20092712172581
Title: Construction and gray evaluation of the performance index system of wheat no-tillage planter
Authors: Zhao, Liqin1 ; Guo, Yuming2 ; Zhang, Peizeng3 ; Han, Zhanxing3
Author affiliation: 1 College of Mechanical Engineering and Antomatization, North University of China,
2
3
Corresponding author: Zhao, L. (zlq0908@sohu.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 89-93
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: It is significant to investigate more scientific and reasonable wheat no-tillage planter evaluation methods for generalization and application of conservation tillage. The purpose of this paper was to study performance evaluation index system for wheat no-tillage planter. The 2BMF-9 wheat no-tillage planter was taken as an object on the basis of agriculture demand. The meaning and mensuration of every index was expounded, and their weights were determined by methods of expert consulting and AHP. Through dual-factor experiment, eight treatments in different soil-surface conditions were designed. Indices in eight treatments and corresponding emergence seeding ratio and tiller number were measured. Then the classified reference values of indices were educed by analyzing data using gray clustering. The results indicate that the deep eligibility and seed-fertilizer space eligibility are relatively good, seeding uniformity is common, and passing ability and soil-covering ability are below average. Moreover, in order to improve the performance of no-tillage planter, measures should be taken to optimize planter structure and soil-surface treatments for advancing the passing ability and soil-covering ability.
Number of references: 14
Main heading: Agriculture
Controlled terms: Agricultural machinery - Grain (agricultural product) - Soil conservation - Soils - Surface structure
Uncontrolled terms: Conservation tillage - Evaluation Method - Gray evaluation - No-tillage planter - Passing ability - Performance evaluation index - Performance indices - Reference values - Surface conditions - Tiller number - Wheat no-tillage planter
Classification code: 951 Materials Science - 931.2 Physical Properties of Gases, Liquids and Solids - 821.4 Agricultural Products - 821.3 Agricultural Methods - 821.1 Agricultural Machinery and Equipment - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 483.1 Soils and Soil Mechanics
Database: Compendex
12. Accession number: 20092812172861
Title: Optimization of technology for oil extraction from Kosteletzkya virginica seeds by supercritical CO2 fluid
Authors: Yang, Qingli1, 2, 3 ; Yu, Shanlin3 ; Qin, Song1
Author affiliation: 1 Institute of Oceanology, The Chinese Academy of Sciences,
2
3
Corresponding author: Yu, S. (yshanlin1956@163.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 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
Abstract: In order to improve the utilization of Kosteletzkya virginica seeds and develop a new material for biodiesel, Kosteletzkya virginica seeds were taken as raw materials and the supercritical CO2 fluid extraction technology was used to extract seed oil. The single factor experiment and the orthogonal experiment were carried out to study the effects of factors such as extraction pressure, extraction temperature, extraction time and supercritical CO2 flow on oil yield. The optimal technological conditions of oil extraction from Kosteletzkya virginica seeds by supercritical CO2 fluid were determined. The order of factors that influenced the oil yield within the experimental range was as follows: extraction pressure > extraction temperature > supercritical CO2 flow>extraction time. The optimal technological parameters of oil extraction from Kosteletzkya virginica seeds should be as follows: extraction pressure 25MPa, extraction temperature
Number of references: 16
Main heading: Extraction
Controlled terms: Biodiesel - Carbon dioxide - Effluent treatment - Oils and fats - Optimization - Seed - Supercritical fluid extraction - Supercritical fluids
Uncontrolled terms: As extraction - Extraction pressure - Extraction temperatures - Extraction time - Fluid extraction - Kosteletzkya virginica seeds - New material - Oil extraction - Oil yield - Orthogonal experiment - Seed oil - Supercritical CO - Technological conditions - Technological parameters
Classification code: 921.5 Optimization Techniques - 822.3 Food Products - 821.4 Agricultural Products - 804.2 Inorganic Compounds - 931.2 Physical Properties of Gases, Liquids and Solids - 804.1 Organic Compounds - 644.2 Refrigerants - 523 Liquid Fuels - 452.4 Industrial Wastes Treatment and Disposal - 802.3 Chemical Operations
Database: Compendex
13. Accession number: 20092812172860
Title: Effect of inoculum to substrate ratios on methane production in mixed anaerobic digestion of pig manure and blue-green algae
Authors: Wang, Shouquan1, 2 ; Yan, Qun1, 2 ; Miao, Hengfeng1, 2 ; Ruan, Wenquan1, 2
Author affiliation: 1 Key Laboratory of Industrial Biotechnology,
2 School of Environmental and Civil Engineering,
Corresponding author: Ruan, W. (wqruan@jiangnan.edu.cn)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 172-176
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: A laboratory-scale study was conducted on the batch anaerobic digestion of pig manure and blue-green algae using multi-reactor system to compare the methane production from those substrates at different inoculum to substrate ratios (ISRs) of 3.0, 2.0, 1.0, 0.5 and 0.25 at
Number of references: 24
Main heading: Anaerobic digestion
Controlled terms: Biochemical engineering - Biodegradability - Biodegradation - Fatty acids - Fertilizers - Manures - Methane - Phytoplankton - Substrates
Uncontrolled terms: Biochemical methane potential - Blue-green algae - Fermentation broths - Inoculum to substrate ratios - Laboratory scale - Methane production - Methane Yield - Mixed anaerobic digestion - pH value - Pig manures - Reactor systems - Resource utilizations - Volatile fatty acids - Volatile solid
Classification code: 801 Chemistry - 801.2 Biochemistry - 802.2 Chemical Reactions - 804 Chemical Products Generally - 804.1 Organic Compounds - 805.1.1 Biochemical Engineering - 813.1 Coating Techniques - 821.2 Agricultural Chemicals - 821.5 Agricultural Wastes - 714.2 Semiconductor Devices and Integrated Circuits - 452.3 Industrial Wastes - 452.4 Industrial Wastes Treatment and Disposal - 454 Environmental Engineering - 461 Bioengineering and Biology - 461.8 Biotechnology - 461.9 Biology - 471 Marine Science and Oceanography - 522 Gas Fuels - 712.1 Semiconducting Materials
Database: Compendex
14. Accession number: 20092712172604
Title: Planning of land consolidation project based on farmland landscape security pattern
Authors: Li, Hongju1 ; Lin, Jian1 ; Yan, Hongmei2
Author affiliation: 1 College of Urban and Environmental Sciences,
2 Department of Design Management, The Office of South-to-North Water Diversion,
Corresponding author: Li, H. (guodiyuan@126.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 217-222
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: In the land consolidation activities, on the premise of guaranteeing quantity-quality of cultivated land, how to create farmland landscape security pattern according to local conditions by effective technical means has become an urgent problem for land consolidation.
Number of references: 13
Main heading: Farms
Controlled terms: Safety engineering
Uncontrolled terms: Beijing - Bio-security - Consolidation projects - Cultivated lands - Farmland landscape - Land consolidation - Local conditions - River ecology - Security pattern - Security patterns - Urgent problems
Classification code: 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 914 Safety Engineering
Database: Compendex
15. Accession number: 20092712172585
Title: Experiment of dielectric separation of seeds with different electrode arrangements
Authors: Zhang, Benhua1, 2 ; Li, Chenghua3 ; Sun, Shiming2 ; Gong, Yuanjuan1
Author affiliation: 1 College of Engineering,
2
3
Corresponding author: Li, C. (lch@mail.sylu.edu.cn)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 109-114
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: In order to investigate the impact of electrode arrangement on the effect of seed dielectric separation, axial and peripheral electrodes arrangements were adopted on the same separation cylinder. Equal interval group was arranged for paddy seed separation, and paddy seed frequency falling into different groups under different experiment conditions was statistically analyzed, paddy seed distribution after separation was verified. The results of the experiment show that in comparison with peripheral electrodes arrangement, the axial electrode arrangement had a large seed falling angle and a standard deviation for seed distribution, which indicates a large seed disparity for separation. Seed falling satisfied a normal distribution with the axial electrode arrangement, and with the peripheral electrodes arrangement seed falling was not in normal distribution with large repetition errors. Seed collision during separation was reduced significantly with good experiment repeatability which was in favor of seed separation for different grades. The results of this study provide theoretical references for the design of seed dielectric separation equipment.
Number of references: 20
Main heading: Seed
Controlled terms: Aberrations - Ceramic capacitors - Dielectric properties - Electrodes - Experiments - Normal distribution - Separation
Uncontrolled terms: Axial electrodes - Electrode arrangement - Equal intervals - Experiment condition - Experimental study - Separation equipment - Standard deviation
Classification code: 941.4 Optical Variables Measurements - 941.3 Optical Instruments - 931.2 Physical Properties of Gases, Liquids and Solids - 922.1 Probability Theory - 901.3 Engineering Research - 821.4 Agricultural Products - 812.1 Ceramics - 802.3 Chemical Operations - 741 Light, Optics and Optical Devices - 714.1 Electron Tubes - 708.1 Dielectric Materials - 704.1 Electric Components - 701 Electricity and Magnetism
Database: Compendex
16. Accession number: 20092712172569
Title: Forecast model for wetting front migration distance under furrow irrigation infiltration
Authors: Nie, Weibo1 ; Ma, Xiaoyi1 ; Wang, Shuli1
Author affiliation: 1 Key Laboratory for Agricultural Soil and Water Engineering in Arid Area of Ministry of Education, Yangling 712100,
Corresponding author: Ma, X. (xiaoyimasl@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: 5
Issue date: May 2009
Publication year: 2009
Pages: 20-25
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: In order to indicate influence factors and migration laws of wetting front under furrow irrigation infiltration. Based on indoor experiment under furrow irrigation infiltration of clay loam and sandy soil, effects of soil bulk density, water depth and initial soil water content on wetting front were analyzed. Linear functional relationship were set up between wetting front vertical and horizontal migration distance and square of infiltration time, wetting front horizontal migration distance and square of infiltration time. The forecast model of wetting front migration distance was set up with the factors such as soil bulk density, water depth and soil initial water content and was verified. The results showed that the model had high accuracy and could be used to forecast the wetting front migration distance under furrow irrigation infiltration, so the results can give reference for improving furrow irrigation technique.
Number of references: 5
Main heading: Geologic models
Controlled terms: Clay minerals - Forecasting - Irrigation - Seepage - Soil mechanics - Soil moisture - Underwater soils - Water content - Wetting
Uncontrolled terms: AS-soils - Clay loams - Forecast model - Functional relationship - Furrow irrigation - Indoor experiment - Infiltration time - Influence factors - Migration distance - Sandy soils - Soil bulk density - Soil water content - Water depth - Wetting front - Wetting fronts
Classification code: 931.2 Physical Properties of Gases, Liquids and Solids - 922.2 Mathematical Statistics - 921 Mathematics - 912.2 Management - 821.3 Agricultural Methods - 802.3 Chemical Operations - 483.1 Soils and Soil Mechanics - 482.2 Minerals - 481.1 Geology - 471.1 Oceanography, General - 444 Water Resources - 441 Dams and Reservoirs; Hydro Development - 407 Maritime and Port Structures; Rivers and Other Waterways
Database: Compendex
17. Accession number: 20092712172620
Title: Construction and management mode of biomass centralized gas supply engineering in rural
Authors: Wei, Quanyuan1 ; Wang, Kaijun2 ; Song, Yinghao1 ; Xu, Dongli3
Author affiliation: 1
2 Department of Environmental Science and Engineering,
3 Beijing Lianhe Chuangye Construction Engineering Company, Limited,
Corresponding author: Wang, K. (wkj-iep@vip.163.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 303-307
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: This paper emphatically analyzed the reasons that rural biomass gasification stations could not run well at present, brought forward the suggestions of constructing new-type biomass gasification stations in rural areas and their operation and management mode, especially discussed the operation mode of the new-type stations. Points raised in rural gasification gas transmission and distribution system should be focused on centralized gas making pipe network-based transmission and vehicular distribution. Taking governmental guidance, enterprise-led, community participation, multi-building mechanisms into the industry, the professional operation and management mode should be realized in order to address the constraints of biomass gasification technology to promote the key issues.
Number of references: 16
Main heading: Gasification
Controlled terms: Biomass - Gas engineering - Gas generators - Gas supply - Gases - Pyrolysis - Rural areas
Uncontrolled terms: Biomass Gasification - Centralized gas making - Community participation - Gas transmission - Key issues - Operation and management - Operation mode - Pipe networks - Regional distribution
Classification code: 931.2 Physical Properties of Gases, Liquids and Solids - 901.4 Impact of Technology on Society - 901 Engineering Profession - 821.5 Agricultural Wastes - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 805.1.1 Biochemical Engineering - 802.3 Chemical Operations - 802.2 Chemical Reactions - 802.1 Chemical Plants and Equipment - 619.1 Pipe, Piping and Pipelines - 525.1 Energy Resources and Renewable Energy Issues - 522 Gas Fuels - 403.2 Regional Planning and Development
Database: Compendex
18. Accession number: 20092712172616
Title: Preparation and properties of biodegradable plastics prepared by using corn gluten meal
Authors: Chen, Ye1 ; Wang, Guanyu1 ; Du, Yue1
Author affiliation: 1 Key Laboratory of Food Nutrition and Safety,
Corresponding author: Chen, Y. (chenye@tust.edu.cn)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 284-287
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Corn Gluten Meal (CGM), is a byproduct from the wet milling of corn to yield starch. In order to utilize the CGM to produce the biodegradable plastics, the CGM was blended with glycerol which was used as the plasticizer, the mixture was extruded into pellets by the single-screw extruder, and then the pellets were hot-pressed as the specimens. The properties of the specimens were evaluated. The results showed that the specimens containing 20% of glycerol had the better mechanical properties. The established equation based on Halsey equation could predict the relationship between the tensile strength and relative humidity, and the experimental data fitted the equation well. Observation results using Scanning Electron Microscopy (SEM) showed that the specimen had a uniform structure. The results of Thermal Gravimetric Analysis (TGA) showed that the specimen could keep thermal stability below
Number of references: 17
Main heading: Atmospheric humidity
Controlled terms: Biodegradable polymers - Biopolymers - Elastomers - Extruders - Extrusion - Gas burners - Glycerol - Gravimetric analysis - Mechanical properties - Moisture - Moisture determination - Pelletizing - Plasticity - Plasticizers - Plastics - Scanning electron microscopy - Strength of materials - Tensile strength
Uncontrolled terms: Biodegradable plastics - Corn gluten meal - Equation based - Equilibrium moisture content - Experimental data - Halsey equation - Preparation and properties - Relative humidities - SEM - Single screw extruder - Thermal gravimetric analysis - Thermal stability - Uniform structure - Wet milling
Classification code: 951 Materials Science - 815.1 Polymeric Materials - 804.1 Organic Compounds - 803 Chemical Agents and Basic Industrial Chemicals - 802.3 Chemical Operations - 801.4 Physical Chemistry - 801.2 Biochemistry - 816.1 Processing of Plastics and Other Polymers - 817.1 Polymer Products - 818.2 Elastomers - 931.1 Mechanics - 931.2 Physical Properties of Gases, Liquids and Solids - 944.2 Moisture Measurements - 816.2 Plants and Machinery for Plastics and Other Polymers - 801 Chemistry - 741.1 Light/Optics - 421 Strength of Building Materials; Mechanical Properties - 422 Strength of Building Materials; Test Equipment and Methods - 443.1 Atmospheric Properties - 454 Environmental Engineering - 461.2 Biological Materials and Tissue Engineering - 521.3 Fuel Burners - 522 Gas Fuels - 533.1 Ore Treatment - 535.2.1 Metal Forming Machines - 535.2.2 Metal Forming Practice - 642.2 Industrial Furnaces and Components - 643.2 Space Heating Equipment and Components
Database: Compendex
19. Accession number: 20092712172606
Title: Experiment of drying rapeseed by spouted bed with a porous branch rotating draft tube
Authors: Liu, Weimin1 ; Liu, Jun1 ; Zhang, Pengcheng1 ; Zhao, Jiewen1
Author affiliation: 1 School of Food and Biological Engineering,
Corresponding author: Liu, W. (liuwmwu@ujs.edu.cn)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 228-233
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: For improving drying performance of annulus region in rotating draft tube spouted bed (RDTSB), a novel porous branch rotating draft tube spouted bed (PBRDTSB) was designed and tested with rapeseed. Taking heat consumption per kilogram water, the maximum temperature and average temperature of rapeseed in the drying process as criteria respectively, a scheme of orthogonal experiment with four factors and four levels was given and tested. For heat consumption per kilogram water, the optimum technological parameters were
Number of references: 19
Main heading: Hydraulic structures
Controlled terms: Curing - Dewatering - Regression analysis - Rotation - Tubes (components)
Uncontrolled terms: Air flow-rate - Average temperature - Draft tube spouted bed - Draft tubes - Drying performance - Drying process - Heat consumption - Hot air temperature - Maximum temperature - Orthogonal experiment - Porous branch rotating draft tube - Rapeseed - Regression model - Scaling-up - Spouted bed - Technological parameters
Classification code: 931.1 Mechanics - 619.1 Pipe, Piping and Pipelines - 802.2 Chemical Reactions - 802.3 Chemical Operations - 815.1 Polymeric Materials - 818.3 Rubber and Elastomer Processing - 922.2 Mathematical Statistics - 616.1 Heat Exchange Equipment and Components - 601.1 Mechanical Devices - 511.2 Oil Field Equipment - 446.2 Related Hydraulic Structures - 441 Dams and Reservoirs; Hydro Development - 407.2 Waterways - 611 Hydroelectric and Tidal Power Plants
Database: Compendex
20. Accession number: 20092712172596
Title: Design and heating performance of solar-assisted heat pump with truncated-cone-type evaporator
Authors: Lan, Qing1, 2 ; Xia, Chaofeng2 ; Li, Ming2 ; Tang, Runsheng2 ; He, Yongfen2
Author affiliation: 1 College of Hydraulic and Civil Engineering,
2 Solar Energy Research Institute,
Corresponding author: Xia, C. (lan6547596@126.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 162-166
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Configuration of the solar-assisted heat pump with an innovative truncated-cone-type evaporator was designed. Mathematical models for parts of every system were set up. The results showed that when the average absorbance of solar radiation of a solar-assisted heat pump with a truncated-cone-type evaporator was 7.2 MJ, the coefficient of performance (COP) of the system was 3.1 under poor solar radiation in December in
Number of references: 18
Main heading: Pumps
Controlled terms: Competition - Electromagnetic waves - Evaporators - Heat pump systems - Heating - Solar radiation - Sun - Systems analysis - Water supply
Uncontrolled terms: Absorbance - Coefficient of performance - Heating performance - Performance - Solar assisted heat pump - Solar-assisted heat pumps - System design - Truncated-cone-type
Classification code: 961 Systems Science - 657.2 Extraterrestrial Physics and Stellar Phenomena - 711 Electromagnetic Waves - 731.1 Control Systems - 802.1 Chemical Plants and Equipment - 911.2 Industrial Economics - 912.3 Operations Research - 657.1 Solar Energy and Phenomena - 642.1 Process Heating - 641.2 Heat Transfer - 618.2 Pumps - 616.1 Heat Exchange Equipment and Components - 446.1 Water Supply Systems - 643.1 Space Heating
Database: Compendex
21. Accession number: 20092712172621
Title: Influence of conservation tillage on greenhouse effect
Authors: Hu, Lifeng1 ; Li, Hongwen1 ; Gao, Huanwen1
Author affiliation: 1 Conservation Tillage Research Center,
Corresponding author: Li, H. (lhwen@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: 5
Issue date: May 2009
Publication year: 2009
Pages: 308-312
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Agriculture is an important source of greenhouse gas emissions. Unreasonable agricultural management increases greenhouse gas emissions and decreases soil absorbed greenhouse gas. The influence of conservation tillage on greenhouse effect comes from two aspects: one is that no tillage can reduce CO2 emission, but the CH4 and N2O emissions are uncertain; the other is that some straw C can release gas into atmosphere and increase greenhouse gas emission, but straw returning can improve carbon sequestration potential and so reduce the total greenhouse gas emissions. Through analyzing the data about soil tillage and straw management on greenhouse gas emission, the research results prove that conservation tillage can reduce greenhouse effect, and can also provide some references for researching agricultural greenhouse effect.
Number of references: 47
Main heading: Gas emissions
Controlled terms: Agricultural machinery - Agriculture - Carbon dioxide - Global warming - Greenhouse effect - Greenhouse gases - Greenhouses - Leakage (fluid) - Soil conservation - Soils
Uncontrolled terms: Agricultural greenhouse - Agricultural management - Carbon sequestration potential - Conservation tillage - No tillage - Release gas - Research results - Soil tillage - Straw management
Classification code: 644.2 Refrigerants - 804.1 Organic Compounds - 804.2 Inorganic Compounds - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 821.1 Agricultural Machinery and Equipment - 821.3 Agricultural Methods - 821.6 Farm Buildings and Other Structures - 619.1 Pipe, Piping and Pipelines - 402.1 Industrial and Agricultural Buildings - 443.1 Atmospheric Properties - 451 Air Pollution - 451.1 Air Pollution Sources - 452.1 Sewage - 452.3 Industrial Wastes - 483.1 Soils and Soil Mechanics
Database: Compendex
22. Accession number: 20092712172586
Title: Numerical simulation of impedance characteristic of low-frequency ultrasonic nozzle for aeroponic culture
Authors: Ren, Ning1 ; Gao, Jianmin1
Author affiliation: 1 Key Laboratory of Modern Agricultural Equipment and Technology,
Corresponding author: Gao, J. (gaojianmin_1228@163.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 115-118
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: In order to accelerate the process of design and manufacturing of low-frequency ultrasonic nozzle for aeroponic culture and reduce its cost of research and development, the circuit diagram of testing principles of its impedance was put forward, and the FEM model of its impedance analysis was developed. The static, modal and harmonic analysis was performed in ANSYS; static capacitance, natural frequencies for the short circuit (resonance) case and the open circuit (anti-resonance) case, dynamic resistance, frequency at half-power point, dynamic inductance and mechanical quality factor were computed via static, modal analysis and harmonic analysis. After the prototype of the nozzle was made, its impedance characteristic was carried out applying impedance analyzer and compared with the results of FEM simulation. The results show that all the parameters can be used as the calculation basis for the design of ultrasonic generator.
Number of references: 10
Main heading: Mathematical models
Controlled terms: Atomization - Atomizers - Computer simulation - Dynamic mechanical analysis - Finite element method - Fourier series - Harmonic analysis - Industrial research - Modal analysis - Nozzles - Resonance - Ultrasonics
Uncontrolled terms: Aeroponic culture - Anti-resonance - Circuit diagrams - Dynamic resistance - FEM models - FEM simulations - Impedance analysis - Impedance analyzer - Impedance characteristic - Impedance characteristics - Low frequency - Mechanical quality factors - Numerical simulation - Open circuits - Power points - Research and development - Short circuit - Static capacitance - Ultrasonic atomization - Ultrasonic generator - Ultrasonic nozzle
Classification code: 802.3 Chemical Operations - 901.3 Engineering Research - 912.1 Industrial Engineering - 931.2 Physical Properties of Gases, Liquids and Solids - 921 Mathematics - 921.6 Numerical Methods - 931.1 Mechanics - 921.3 Mathematical Transformations - 802.1 Chemical Plants and Equipment - 753.1 Ultrasonic Waves - 421 Strength of Building Materials; Mechanical Properties - 631.1 Fluid Flow, General - 631.1.1 Liquid Dynamics - 701 Electricity and Magnetism - 723.5 Computer Applications - 751.1 Acoustic Waves
Database: Compendex
23. Accession number: 20092712172577
Title: Computation and experiment for axial force balance of canned motor pump PBN65-40-250
Authors: Kong, Fanyu1 ; Gao, Cuilan1 ; Zhang, Xufeng1 ; Zhang, Hongli1 ; Liu, Houlin1
Author affiliation: 1 Technical and Research Center of Fluid Machinery Engineering, Jiangsu University,
Corresponding author: Gao, C. (cuilan0206@163.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 68-72
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Whether the axial force is balanced commendably influences whether the canned motor pump can function safely and reliably. The balanced axial force design technology of canned motor pump becomes the constraint of its large scale development. The axial force of canned motor pump rotor was multi-analyzed and calculated. By integrating the reasons for producing the axial forces of canned motor pump, the method which adjusts the size of packing ring behind the impeller and the overflow area of the balancing hole was used to achieve the balanced design of the axial force effectively. In order to measure the axial force of canned motor pump, the measuring installation and the testing system were designed. After the balance computation and the experimental confirmation, the theoretical calculation and the measured value are almost consistent. By synthesizing the axial force calculation, the design calculation method of balancing axial force has very good practical value.
Number of references: 15
Main heading: Axial flow
Controlled terms: Experiments - Force measurement - Motors - Pumps
Uncontrolled terms: Almost consistent - Axial force measurement - Axial forces - Balance computation - Balanced design - Canned motor pumps - Design calculations - Experimental confirmation - Large-scale development - Packing rings - Testing systems - Theoretical calculations
Classification code: 943.2 Mechanical Variables Measurements - 901.3 Engineering Research - 705.3 Electric Motors - 632.4 Pneumatic Equipment and Machinery - 632.2 Hydraulic Equipment and Machinery - 631.1 Fluid Flow, General - 618.2 Pumps
Database: Compendex
24. Accession number: 20092712172608
Title: Effects of ultra high pressure treatment on main flavour compounds in orange juice
Authors: Pan, Jian1 ; Wang, Haixiang1 ; Xie, Huiming1 ; Yang, Yi1 ; Zeng, Qingmei1
Author affiliation: 1 Engineering Research Center of Bio-Process, Hefei University of Technology,
Corresponding author: Wang, H. (wangsky111@sohu.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 239-243
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Effects of ultra high pressure processing on flavour compounds in orange juice were investigated. Samples were subjected to high pressure ranging from 100 to 500 MPa. After high pressure treatments, the flavour compounds were extracted by Solid-Phase Microextraction (SPME). Analysis was carried out by Gas Chromatography-Mass Spectrometry (GC-MS). The key flavour compounds of orange juice were three alkenes (namely limonene, myrcene and α-pinene), two alcohols (linalool and α-terpineol), three aldehydes (citral, octanal and decanal), one ketone (carvone) and two esters (ethyl butyrate and 3-OH-ethyl hexanoate). After ultra high pressure treatment, limonene concentration was decreased greatly while myrcene and α-pinene concentrations were not changed significantly and the concentration of limonene was decreased by 75% after high pressure treatment of 500 MPa for 15 min, α-terpineol and carvone concentrations were increased significantly. The aldehydes concentrations were retained well. The ester concentrations were changed under high pressure treatment, but generally their concentrations were not changed remarkably. Under ultra high pressure, limonene was converted to α-terpineol and carvone respectively via acid catalysis and oxidation reaction. Orange juice was processed under pressure above 300 MPa generally. The more losses of flavour compounds were occurred in orange juice under 500 MPa in the study. Thus, pressure of about 400 MPa was chosen as the optimum condition.
Number of references: 23
Main heading: High pressure liquid chromatography
Controlled terms: Aldehydes - Chromatographic analysis - Concentration (process) - Esterification - Esters - Extraction - Food processing - Fruit juices - Gas chromatography - High pressure effects - Ketones - Mass spectrometry - Olefins
Uncontrolled terms: Acid catalysis - Carvone - Concentration of - Ethyl butyrate - Ethyl hexanoate - Gas chromatography-mass spectrometry - High pressure - High pressure treatments - Juices - Myrcene - Optimum conditions - Orange - Orange juice - Oxidation reactions - Solid-phase microextraction - Ultra-high pressure treatment - Ultrahigh pressure
Classification code: 931.2 Physical Properties of Gases, Liquids and Solids - 822.3 Food Products - 822.2 Food Processing Operations - 943.3 Special Purpose Instruments - 804.1 Organic Compounds - 802.2 Chemical Reactions - 801 Chemistry - 802.3 Chemical Operations
Database: Compendex
25. Accession number: 20092712172575
Title: Response of spatial variability of soil physical properties to soil erosion in purple soil slope farmland
Authors: Su, Zheng'an1, 2, 3 ; Zhang, Jianhui1, 3 ; Nie, Xiaojun1, 2, 3
Author affiliation: 1 Institute of Mountain Hazards and Environment,
2 The
3 Key Laboratory of Mountain Hazards and Earth Surface Processes, Chinese
Corresponding author: Zhang, J. (zjh@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: 5
Issue date: May 2009
Publication year: 2009
Pages: 54-60
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: In order to study the effects of soil erosion on spatial variability of soil physical properties in farmlands with different lengths and slopes, the response of spatial variability of soil physical properties to soil erosion was explored in the Sichuan Basin of China, with topography measurement, 137Cs tracer method and analysis of soil physical properties. The results showed that tillage erosion, which was the dominant erosion process on the short slopes with the gradients of 16.6%~25.1%, played an important role in redistributing soil and resulted in no significant variation in soil physical properties (i.e., soil texture and bulk density) of tillage layer along the slope (CV<6.3%). Meanwhile, the soil physical properties of tillage layer had insignificant correlation with 137Cs contents due to tillage erosion. On the steep slope (35.6%), water erosion was the predominant erosion process due to reforestation, with evidence of 137Cs contents correlated closely with soil physical properties of tillage layer. Furthermore, on the long slope (10.1%), water erosion with separation and transport capacity was the predominant erosion process, which resulted in significant variation in soil physical properties with 137Cs contents, but there was no significant correlation between bulk density and 137Cs contents. Soil depth was affected both by tillage erosion and water erosion in slope farmlands in the Sichuan Basin of China. The erosion resulted in the fact that the thinnest soil layer was present at the summit and upper slope positions, and there was the thickest soil layer at the foot of the slope. In general, soil depth increased towards the downslope direction. Therefore, due to the differences in the predominant soil erosion process the soil physical properties varied with slope lengths in the
Number of references: 26
Main heading: Erosion
Controlled terms: Agricultural machinery - Cesium - Farms - Physical properties - Reforestation - Revegetation - Soils
Uncontrolled terms: Bulk density - Downslope - Erosion process - Sichuan Basin - Slope length - Slope positions - Soil depth - Soil erosion - Soil layer - Soil physical property - Soil slopes - Soil textures - Spatial variability - Steep slope - Tillage erosion - Topography measurement - Tracer methods - Transport capacity - Water erosion
Classification code: 821.1 Agricultural Machinery and Equipment - 821.0 Woodlands and Forestry - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 549.1 Alkali Metals - 931.2 Physical Properties of Gases, Liquids and Solids - 539.1 Metals Corrosion - 483 Soil Mechanics and Foundations - 442.2 Land Reclamation - 407 Maritime and Port Structures; Rivers and Other Waterways - 483.1 Soils and Soil Mechanics
Database: Compendex
26. Accession number: 20092712172619
Title: Effects of high-temperature heat treatment of oat kernel on viscosity properties of oat flour
Authors: Wei, Yimin1 ; Ren, Jiajia1 ; Zhang, Bo1 ; Chen, Fengliang1 ; Hu, Xinzhong2
Author affiliation: 1 Key Laboratory of Agricultural Product Processing and Quality Control,
2
Corresponding author: Wei, Y. (weiyimin36@hotmail.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Publication year: 2009
Pages: 299-302
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: In order to provide experimental data on viscosity properties of oats after high-temperature treatment, the oat (Avena Nuda.) seed was milled into four components such as bran, shorts, break flour and middling flour after air-heating at 140, 155 and
Number of references: 20
Main heading: Viscosity
Controlled terms: Gelation - Heat treatment - Heating - Infrared heating - Milling (machining) - Temperature - Thermal effects
Uncontrolled terms: Air heating - Experimental data - Flour - Gelatinization temperature - High temperature - High-temperature treatment - Milling - Oat(Avena Sativa L) - Peak viscosities - Treatment temperature - Viscosity properties
Classification code: 951 Materials Science - 931.2 Physical Properties of Gases, Liquids and Solids - 802.3 Chemical Operations - 741.3 Optical Devices and Systems - 643.1 Space Heating - 642.1 Process Heating - 641.1 Thermodynamics - 641 Heat and Mass Transfer; Thermodynamics - 631.1 Fluid Flow, General - 604.2 Machining Operations - 537.1 Heat Treatment Processes - 531 Metallurgy and Metallography - 421 Strength of Building Materials; Mechanical Properties
Database: Compendex
27. Accession number: 20092712172597
Title: Effect of equivalence ratio on the air-gasification of swine manure
Authors: Tu, Deyu1 ; Dong, Hongmin2 ; Ding, Weimin3
Author affiliation: 1
2 Institute of Agro-Environmental and Sustainable Development,
3
Corresponding author: Dong, H. (donghm@cjac.org.cn)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 167-171
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: The main method of controlling pollution caused by livestock raising is waste reduction and utilization, and the thermochemical conversion technology provides a new mode for ernergy production from livestock wastes. The fluidized bed gasifier system was developped and the swine manure air-gasification experiments were carried out. This article mainly presented the effects of Equivalence Ratio(ER) on gasification process. The results showed that ER had two-sided and complicated effects on the gasification process. The alteration of ER would change the velocity of fluidizing gases in the reactor which had the remarkable influence on fluidized bed temperature distribution. The results showed that oxidation and reduction zone, as well as high temperature region, moved up in the reactor along with the increase of ER. The solid production was decreased with the increase of ER which was favorable for gasification process, but too high value of ER would increase the yield of liquid which was harmful for gasification process. The heat value of fuel gas was decreased with the increase of ER and the carbon conversion efficiency had the countertrend. The gasification efficiency had the fluctuation characteristic with the alteration of ER. The results showed that the ER setting range was around 0.25 for swine manure gasification. In practical production, it would be very important to adjust the ER according to the conditions of inner reactor's temperature distribution, material fluidization quality and fuel gas composition.
Number of references: 16
Main heading: Gasification
Controlled terms: Agriculture - Conversion efficiency - Fertilizers - Fluid dynamics - Fluidization - Fluidized beds - Gas generators - Manures - Radioactive waste disposal - Temperature distribution - Thermoanalysis - Thermolysis - Waste utilization
Uncontrolled terms: Equivalence ratio - Equivalence ratios - Fluidization quality - Fluidized bed gasifier - Fluidized bed temperature - Fuel gas - Fuel gas composition - Gasification efficiency - Gasification process - Heat value - High temperature - Livestock manures - Livestock wastes - Oxidation and reduction - Practical production - Swine manure - Thermochemical Conversion - Waste reduction
Classification code: 801.4 Physical Chemistry - 802.1 Chemical Plants and Equipment - 802.2 Chemical Reactions - 802.3 Chemical Operations - 804 Chemical Products Generally - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 821.2 Agricultural Chemicals - 821.5 Agricultural Wastes - 931.1 Mechanics - 801 Chemistry - 452.3 Industrial Wastes - 452.4 Industrial Wastes Treatment and Disposal - 521.2 Combustors - 522 Gas Fuels - 525.5 Energy Conversion Issues - 622.5 Radioactive Wastes - 631.1 Fluid Flow, General - 641.1 Thermodynamics - 642.2 Industrial Furnaces and Components
Database: Compendex
28. Accession number: 20092712172612
Title: Changes in the volatile compounds and physicochemical properties of Wujiuxiang pear fruits during storage
Authors: Chen, Jiluan1 ; Feng, Zuoshan2 ; Wu, Jihong3 ; Wang, Zhengfu3 ; Hu, Xiaosong3
Author affiliation: 1 Food College,
2
3
Corresponding author: Hu, X. (huxiaos@hotmail.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 264-269
Language: English
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: The levels of sugars and organic acids in Wujiuxiang pear (Pyrus communis L. cv. Wujiuxiang) fruit were investigated using high-performance liquid chromatography (HPLC). Volatile compounds from stored Wujiuxiang pear were isolated by solid-phase microextraction (SPME) and analyzed by high-resolution gas chromatography and gas chromatography/mass spectrometry (GC/MS). Fructose was the dominant sugar, followed by glucose and sucrose. With the increase of storage time, fructose levels increased, and at the stage three, the fructose content was the highest. Sucrose and glucose levels decreased unremarkably. The main organic acid was citric acid, followed by malic acid. Citric acid and tartaric acid levels increased during storage. Malic acid and quinic acid increased from stage one to stage two. Shikimic acid level increased from stage one to stage three, then decreased slightly. Acetic acid changed unremarkably. Succinic acid changed not significantly from stage one to stage two, then increased and it was the highest in the stage three. The level in stage four and stage five was lower than the level in stage three. Flesh firmness decreased slightly during storage. Soluble solids content (SSC) increased after three months of storage, then slightly decreased. The dominant aroma components were hexyl acetate (49.35%), butyl acetate (19.56%), ethyl hexanoate (5.16%), ethyl butyrate (4.92%), ethyl acetate (1.08%), and ethyl (E,Z)-2,4-decadienoate (0.84%). Some of the aroma volatile components increased during storage, especially the ester compounds. The results indicated that the quality of Wujiuxiang pear was affected by the changes of volatile compounds and physicochemical properties.
Number of references: 22
Main heading: Fruits
Controlled terms: Carboxylic acids - Chromatographic analysis - Citric acid - Esters - Extraction - Fructose - Gas chromatography - Glucose - High performance liquid chromatography - High pressure liquid chromatography - Organic acids - Sugar (sucrose) - Volatile organic compounds
Uncontrolled terms: Aroma components - Butyl acetate - Ethyl acetates - Ethyl butyrate - Ethyl hexanoate - Gas chromatography/mass spectrometry - Glucose level - Hexyl acetate - High-resolution gas chromatographies - Malic acids - Pear fruit - Physical/chemical properties - Physicochemical property - Pyrus communis - Quinic acids - Shikimic acids - Solid-phase microextraction - Soluble solids content - Storage - Storage time - Succinic acids - Tartaric acids - Volatile components - Volatile compounds - Wujiuxiang pear
Classification code: 822.3 Food Products - 822 Food Technology - 821.4 Agricultural Products - 804.1 Organic Compounds - 802.3 Chemical Operations - 801 Chemistry - 451.1 Air Pollution Sources
DOI: 10.3969/j.issn.1002-6819.2009.05.049
Database: Compendex
29. Accession number: 20092712172566
Title: Numerical analysis of influence of emitter channel structure on suspended granule distribution
Authors: Wang, Wen'e1 ; Wang, Fujun2 ; Niu, Wenquan1 ; Hu, Xiaotao1
Author affiliation: 1 College of Water Resource and Architectural Engineering, Northwest Agriculture and
2
Corresponding author: Wang, F. (wangfj@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: 5
Issue date: May 2009
Publication year: 2009
Pages: 1-6
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: The size of labyrinth emitter is minimal and the internal structure is relatively complex. It is necessary to analyze the influence of emitter channel structure on the suspended granule distribution for emitter channel structural optimization. The orthogonal design was used for emitter channel design. Based on two-phase flow theory, numerical analysis of liquid solid two-phase flow of design emitter was carried out using computational fluid dynamics software. The velocity and suspended granule distribution in the emitter channel at different inlet concentrations and granule sizes were obtained by simulation. The effects of structure parameters, granule sizes and inlet concentrations on suspended granule distribution were analyzed. The results showed that the emitter channel structure had influence on granule concentration distribution. The order of influence degree was tooth angle, intertooth space, channel depth, and tooth depth. The chance of emitter being plugged by granule particles was small if the granule size was 1/10th~1/6th of the least size of the channel width, and it was advantaged to improve the anti-clogging ability of emitters if the ratio of tooth depth and intertooth space was less than 0.5. The study can provide reference for emitter structure optimization.
Number of references: 17
Main heading: Structural optimization
Controlled terms: Computational fluid dynamics - Dentistry - Fluid dynamics - Granulation - Liquids - Particles (particulate matter) - Structural design - Two phase flow
Uncontrolled terms: Channel depth - Channel design - Channel structures - Channel widths - Computational Fluid Dynamics software - Emitter channel structure - Emitter structures - Granule concentration - Granule size - Influence degree - Inlet concentration - Internal structure - Liquid-solid two-phase flow - Orthogonal design - Structure parameter
Classification code: 723.5 Computer Applications - 802.3 Chemical Operations - 804 Chemical Products Generally - 951 Materials Science - 921.5 Optimization Techniques - 931.1 Mechanics - 931.2 Physical Properties of Gases, Liquids and Solids - 921.6 Numerical Methods - 631.1.2 Gas Dynamics - 631.1.1 Liquid Dynamics - 408.1 Structural Design, General - 451.1 Air Pollution Sources - 461.1 Biomedical Engineering - 461.6 Medicine and Pharmacology - 462.3 Dental Equipment and Supplies - 631.1 Fluid Flow, General
Database: Compendex
30. Accession number: 20092712172568
Title: Soil infiltration properties with slight saline water intermittent application
Authors: Xue, Jing1 ; Wang, Quanjiu1, 2 ; Bi, Yuanjie1
Author affiliation: 1 Institute of Water Resources, Xi'an University Technology,
2 State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau, Yangling 712100,
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: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 14-19
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Reasonable development and utilization of slight saline water is an important approach of relieving the agricultural freshwater resource shortage. Soil infiltration properties were studied through laboratory simulation experiments of one-dimensional vertical intermittent infiltration under different periods and circulating rates, when salt concentrations of the slight saline water were 2, 3, 4, 5 and
Number of references: 19
Main heading: Saline water
Controlled terms: Hydraulic models - Irrigation - Seepage - Soil mechanics - Soils - Water analysis - Water resources - Wetting
Uncontrolled terms: Circulating rates - Cumulative infiltration - Fresh water resources - Intermittent infiltration - Laboratory simulation - Salt concentration - Slight saline water - Soil infiltration - Sorptivity
Classification code: 821.3 Agricultural Methods - 802.3 Chemical Operations - 801 Chemistry - 632.1 Hydraulics - 931.2 Physical Properties of Gases, Liquids and Solids - 483.1 Soils and Soil Mechanics - 444 Water Resources - 441 Dams and Reservoirs; Hydro Development - 407 Maritime and Port Structures; Rivers and Other Waterways - 445.2 Water Analysis
Database: Compendex
31. Accession number: 20092712172583
Title: Calibration of EGR system of ethanol/diesel blend fuel engine
Authors: Peng, Meichun1 ; Huang, Hua2 ; Hu, Qiang3 ; Wang, Xianfeng1
Author affiliation: 1 Electro-Mechanical Engineering Faculty, Guangdong University of Technology,
2
3
Corresponding author: Peng, M. (zzspmc@163.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 100-104
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: The calibration of EGR system of ethanol/diesel blend fuel engine DL190-12 was carried out. The control of flow of exhaust gas recirculation was completed with adjusting opening width of EGR valve which was controlled by vacuum. The method of line condition's calibration for vacuum in EGR valve was proposed. Value engineering principle was applied in the optimization of engine performance test results for calibration of vacuum in EGR valve. The model of engine performance evaluation was established, the evaluation indexes were proposed, and their weights were given. The best vacuum MAP of EGR valve by two-grade evaluation methods was obtained, the results was reasonable and could be used in EGR control.
Number of references: 15
Main heading: Engine cylinders
Controlled terms: Calibration - Cylinders (shapes) - Engines - Machine design - Vacuum - Vacuum technology - Value engineering
Uncontrolled terms: Blend fuels - EGR - EGR valve vacuum - Engine performance - Engine performance tests - Engineering principles - Ethanol/diesel - Evaluation index - Evaluation Method - Exhaust gas recirculation - Method of lines - Opening width
Classification code: 944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments - 943 Mechanical and Miscellaneous Measuring Instruments - 942 Electric and Electronic Measuring Instruments - 941 Acoustical and Optical Measuring Instruments - 911.5 Value Engineering - 902.2 Codes and Standards - 654.2 Rocket Engines - 633 Vacuum Technology - 617.3 Steam Engines - 612.1.1 Internal Combustion Engine Components - 612 Engines - 601 Mechanical Design - 408.2 Structural Members and Shapes
Database: Compendex
32. Accession number: 20092712172598
Title: Economy and emission characteristics of different proportions of biodiesel from diesel engine
Authors: Li, Xiaoyu1 ; Han, Heyou2 ; Wang, Wei1 ; Chen, Hao1 ; Zhang, Jun1
Author affiliation: 1 College of Engineering and Technology,
2
Corresponding author: Li, X. (lixioayu@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: 5
Issue date: May 2009
Publication year: 2009
Pages: 177-182
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Experimental study on the economy and emission characteristics has important value for serviceability of biodiesel. Based on engine bench test, the brake special fuel consumption and exhaust emissions of the engine when fueled with the four mixing ratios of biodiesel were measured. The results indicate that the biodiesel and blend fuels can be used as alternative fuel in the diesel engine without any modification. As the mixed proportion of biodiesel gets larger, the smoke intensity, HC and CO emission concentrations decrease obviously, which improves the emission characteristics of engine. When 10% or 20% proportion of biodiesel was added for diesel engine, it can reduce the emissions of smokes, HC and CO within economic consumption.
Number of references: 16
Main heading: Diesel engines
Controlled terms: Alternative fuels - Biodiesel - Brakes - Carbon monoxide - Engines - Leakage (fluid) - Smoke - Steel metallurgy
Uncontrolled terms: Blend fuels - CO emissions - Economic consumption - Emission - Emission characteristics - Engine bench tests - Exhaust emission - Experimental studies - Important value - Mixing ratios - Smoke intensity
Classification code: 612.2 Diesel Engines - 617.3 Steam Engines - 619.1 Pipe, Piping and Pipelines - 612 Engines - 654.2 Rocket Engines - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 801.3 Colloid Chemistry - 602 Mechanical Drives and Transmissions - 452.1 Sewage - 452.3 Industrial Wastes - 483.1 Soils and Soil Mechanics - 451.1 Air Pollution Sources - 523 Liquid Fuels - 531.1 Metallurgy - 545.3 Steel - 524 Solid Fuels
Database: Compendex
33. Accession number: 20092712172592
Title: Extraction of the image of soybean target leaf spot based on improved genetic algorithm
Authors: Qi, Guangyun1 ; Ma, Xiaodan1 ; Guan, Hai'ou1
Author affiliation: 1 Information Technology College,
Corresponding author: Qi, G. (bynd_qgy@163.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 142-145
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Aiming at extracting the image of diseased spots and calculating the feature parameters of diseased spots, the present paper studied the extracting method of soybean diseased spots, which used computer digital image processing and genetic algorithm. First, the authors obtained the image, and then recognized the diseased spots through genetic algorithm. At last, the feature parameters of diseased spots were calculated by using the technology of digital image processing. The results indicate that this method can extract the image of diseased spots efficaciously and calculate the feature parameter accurately, which can provide the foundation for recognition of disease category in advance.
Number of references: 16
Main heading: Image processing
Controlled terms: Digital image storage - Feature extraction - Genetic algorithms - Imaging systems
Uncontrolled terms: Calculating feature parameter - Digital image processing - Diseased spots - Feature parameters - Improved genetic algorithms - Leaf spots - Soybean
Classification code: 751.1 Acoustic Waves - 746 Imaging Techniques - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 741 Light, Optics and Optical Devices - 921 Mathematics - 723.5 Computer Applications - 723 Computer Software, Data Handling and Applications - 722.4 Digital Computers and Systems - 722.1 Data Storage, Equipment and Techniques - 716 Telecommunication; Radar, Radio and Television - 723.2 Data Processing and Image Processing
Database: Compendex
34. Accession number: 20092712172603
Title: Analysis of ecosystem servive function of land use in rural residential
Authors: Jiang, Guanghui1, 2 ; Zhang, Fengrong3 ; Tan, Xuejing1, 2 ; Huo, Huige1, 2 ; Zhao, Tingting3
Author affiliation: 1 College of Resources Science and Technology,
2 State Key Laboratory of Earth Surface Process and Resource Ecology,
3 Department of Land Resources Management,
Corresponding author: Zhang, F. (zhangfr@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: 5
Issue date: May 2009
Publication year: 2009
Pages: 210-216
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Based on the land use actuality map over the same period and the cadastral survey map of
Number of references: 18
Main heading: Ecosystems
Controlled terms: Economics - Forestry - Land use - Regional planning - Rural areas - Strategic planning - Surveys - Zoning
Uncontrolled terms: Accounting system - Construction land - Ecological environments - Ecological services - Ecosystem service - Land use classification - Land use type - Landuse classifications - Pinggu district of Beijing - Residential land - Survey map - Urban construction
Classification code: 971 Social Sciences - 912.2 Management - 911.2 Industrial Economics - 903.1 Information Sources and Analysis - 901.4 Impact of Technology on Society - 821.0 Woodlands and Forestry - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 454.3 Ecology and Ecosystems - 442.2 Land Reclamation - 405.3 Surveying - 403.2 Regional Planning and Development - 403.1 Urban Planning and Development - 403 Urban and Regional Planning and Development
Database: Compendex
35. Accession number: 20092712172588
Title: Effect of technical parameters of countercurrent moisture conditioning machine on humidification uniformity of brown rice
Authors: Zuo, Yanjun1 ; Jia, Fuguo1 ; Xia, Jiqing1
Author affiliation: 1 College of Engineering,
Corresponding author: Jia, F. (jfg204@163.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 123-126
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: In order to achieve the uniform humidification of brown rice by countercurrent moisture conditioning machine, the effects of different technical parameters (height of nozzle, angle of disc, rotational speed of grain cleaning finger, et al) of key parts of moisture conditioning machine for brown rice (moisture of 12.0%) on humidification uniformity were studied by quadratic regression rotary combination experiments. Software SAS was used to analyze the effect of height of nozzle, angle of disc and rotational speed of grain cleaning finger on humidification uniformity. The standard deviation of moisture reached the smallest, which was 0.04, in the storehouse of the moisture conditioning machine for brown rice, when the height of nozzle was
Number of references: 15
Main heading: Grain (agricultural product)
Controlled terms: Moisture - Nozzles
Uncontrolled terms: Brown rice - Counter current - Humidification uniformity - Key parts - Moisture conditioning - Moisture conditioning machine - Quadratic regression - Rotational speed - Standard deviation - Technical parameters
Classification code: 443.1 Atmospheric Properties - 631.1 Fluid Flow, General - 801.4 Physical Chemistry - 821.4 Agricultural Products
Database: Compendex
36. Accession number: 20092712172593
Title: Application of GIS and particle swarm optimization in rural substation locating
Authors: Yu, Jia1, 2 ; Piao, Zailin1 ; Sun, Rongguo3 ; Li, Qian3
Author affiliation: 1 College of Information and Electric Engineering,
2 Department of Electric Engineering, Shenyang Institute of Engineering,
3
Corresponding author: Piao, Z. (piaozl@china.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 146-149
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Considering the defects of Particle Swarm Optimization (PSO) in the optimization of rural substation location, which constringency speed of getting the global optimum is slow and that is easy to fall into local optimum, this study took development zone of one county as an example to optimize the substation location. The inertia weight dynamic adjustment strategy was utilized to balance effectually the global and local search ability, which greatly improved the capability of PSO algorithm. By considering the influence of Geographic Information System (GIS) on the substation site, the improved PSO was combined with graph problem. Results show that the iteration times of PSO is 48 and the iteration times of the improved PSO reduces to 26. The speed of getting global optimum has doubled. The visualization of the planning process was realized by GIS.
Number of references: 12
Main heading: Particle swarm optimization (PSO)
Controlled terms: Geographic information systems - Information systems - Location - Three term control systems
Uncontrolled terms: Geography information system - Global optimum - Graph problems - Improved PSO - Inertia weight - Iteration time - Local optima - Local search - Planning process - PSO algorithms - Substation locating
Classification code: 912 Industrial Engineering and Management - 911 Cost and Value Engineering; Industrial Economics - 903.3 Information Retrieval and Use - 921.5 Optimization Techniques - 903.2 Information Dissemination - 723.3 Database Systems - 723 Computer Software, Data Handling and Applications - 731.1 Control Systems
Database: Compendex
37. Accession number: 20092712172590
Title: Design of control system based on μC/OSII for seed processing machinery
Authors: Zhang, Quan1 ; Chen, Dayue1 ; Zhao, Chunyu1
Author affiliation: 1 School of Electronic, Information and Electrical Engineering,
Corresponding author: Zhang, Q. (aerooz@gmail.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 132-136
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: In order to improve the automation and intelligence standard of the seed processing equipment, a set of control system based on Micro Controller Unit(MCU) was proposed. The system is modular designed, and can be divided into the main control circuit based on C
Number of references: 11
Main heading: Machine design
Controlled terms: Computer operating systems - Control - Control system analysis - Machinery - Seed
Uncontrolled terms: Control circuits - Controlling system - Design of control system - Development time - Drying machines - External control - Low costs - Main control board - MCU - Processing equipment - Processing machinery - Real time operating system - Whole systems
Classification code: 821.4 Agricultural Products - 732 Control Devices - 731.1 Control Systems - 731 Automatic Control Principles and Applications - 723 Computer Software, Data Handling and Applications - 722 Computer Systems and Equipment - 601 Mechanical Design
Database: Compendex
38. Accession number: 20092712172570
Title: Prediction of irrigation water use using parallel gray neural network
Authors: Chi, Daocai1 ; Tang, Yanfang2 ; Gu, Tuo3 ; Yu, Miao1 ; Li, Zheng1 ; Ma, Zongzheng1
Author affiliation: 1 College of Water Resource,
2 Water Saving Office in Water Bureau of
3 Beijing Miyun Reservoir Management Department,
Corresponding author: Chi, D. (daocaichi@vip.sina.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 26-29
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: The paper put forward a forecast method named parallel gray neural network (PGNN), which was combined with neural network and the gray forecast method. The PGNN was adopted to forecast irrigation water use and the forecast method availability degree was used as the optimization index to calculate the weighted coefficient of the combination model. The results showed that the average error of PGNN was 2.67% and it was obviously lower than that of unitary gray and neural network forecast method. PGNN can be applied to forecast middle-long term irrigation water use.
Number of references: 15
Main heading: Neural networks
Controlled terms: Biochemical oxygen demand - Computer simulation - Forecasting - Irrigation - Mathematical models - Water supply
Uncontrolled terms: Average errors - Combination models - Forecast method - Gray neural networks - Irrigation water use - Long term - Neural network forecast - Parallel gray neural networks - Water consumption - Weighted coefficient
Classification code: 922.2 Mathematical Statistics - 921 Mathematics - 912.2 Management - 821.3 Agricultural Methods - 723.5 Computer Applications - 723.4 Artificial Intelligence - 461.1 Biomedical Engineering - 453 Water Pollution - 452.4 Industrial Wastes Treatment and Disposal - 452.2 Sewage Treatment - 446.1 Water Supply Systems
Database: Compendex
39. Accession number: 20092712172617
Title: Experiment for drying Thomson seedless grape with a multifunctional equipment composed of series-parallel solar energy collectors for drying fruits and vegetables
Authors: Liu, Yijian1, 2 ; Yang, Yang3 ; Wang, Hai2 ; Wang, Jie1
Author affiliation: 1 College of Food Science and Technology,
2
3
Corresponding author: Wang, H.
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 288-292
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Experiments for drying Thomson seedless grape with a multifunctional equipment which was composed of series-parallel solar energy collectors and designed by authors themselves were conducted under climate condition of the Hami city of
Number of references: 16
Main heading: Drying
Controlled terms: Curing - Dewatering - Equipment - Farm buildings - Fruits - Solar collectors - Solar energy - Solar radiation
Uncontrolled terms: Clean energy - Climate condition - Drying effects - Drying quality - Raisin - Series-parallel - Solar energy collectors - Thomson - Xinjiang
Classification code: 821.6 Farm Buildings and Other Structures - 821.4 Agricultural Products - 818.3 Rubber and Elastomer Processing - 815.1 Polymeric Materials - 802.3 Chemical Operations - 901 Engineering Profession - 802.2 Chemical Reactions - 657.1 Solar Energy and Phenomena - 642.1 Process Heating - 615.2 Solar Power - 402.1 Industrial and Agricultural Buildings - 702.3 Solar Cells
Database: Compendex
40. Accession number: 20092712172572
Title: Effects of irrigation with piggery wastewater on nitrate nitrogen dynamics in fluvio-aquatic soil
Authors: Yang, Jun1, 2 ; Zhang, Lei3 ; Zhang, Keqiang1 ; Wang, Feng1 ; Huang, Zhiping1 ; Li, Xiaoguang1
Author affiliation: 1
2
3 Tianjin Water Industry Engineering Equipment Company, Limited,
Corresponding author: Zhang, K. (kqzhang68@126.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 35-39
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Effluent of three stages in piggery wastewater disposal process (raw water, effluent of anaerobic tank, effluent of ecological pond and groundwater) which was mixed with groundwater of 1:5 scale (volume ratio) and three irrigation amounts of effluent of anaerobic tank were applied to irrigate winter wheat. Through monitoring the nitrate nitrogen content dynamics and residual, a better type of water source and suitable irrigation amount were found in order to provide theoretical bases for formulating a scientific pattern of irrigation with piggery wastewater. The results showed that soil NO3--N content of a depth of 0~
Number of references: 20
Main heading: Effluents
Controlled terms: Biochemical oxygen demand - Crops - Dynamics - Grain (agricultural product) - Groundwater - Harvesting - Hydrogeology - Irrigation - Leaching - Nitrates - Nitrogen - Soils - Tanks (containers) - Wastewater - Wastewater disposal - Water content
Uncontrolled terms: Anaerobic water - Grain filling - N content - Nitrate nitrogen - Piggery wastewater - Positive correlations - Raw water - Residual content - Residual nitrate nitrogen - Soil layer - Soil profiles - Theoretical basis - Three stages - Volume ratio - Water source - Wheat harvest - Winter wheat
Classification code: 619.2 Tanks - 802.3 Chemical Operations - 804 Chemical Products Generally - 533.1 Ore Treatment - 804.2 Inorganic Compounds - 821.4 Agricultural Products - 931.1 Mechanics - 821.3 Agricultural Methods - 483.1 Soils and Soil Mechanics - 444.2 Groundwater - 452.2 Sewage Treatment - 452.3 Industrial Wastes - 444 Water Resources - 452.4 Industrial Wastes Treatment and Disposal - 454.2 Environmental Impact and Protection - 481.1 Geology - 453 Water Pollution
Database: Compendex
41. Accession number: 20092712172589
Title: Application of machine vision on automatic seedling transplanting
Authors: Jiang, Huanyu1 ; Shi, Jinghui1 ; Ren, Ye1 ; Ying, Yibin1
Author affiliation: 1 College of Biosystems Engineering and Food Science,
Corresponding author: Jiang, H. (hyjiang@zju.edu.cn)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 127-131
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: This paper presents a machine vision system for automatic seedling transplanting. To reduce transplanting time, image which seedling plants grow in tray was acquired and processed in order to identify the cells to be transplanted. Overlapping of the border seedlings and extruding leaves from neighboring cells always leads to identification failures. So a digital image processing algorithm based on morphological watersheds was developed to segment the border of leaves. The area and the perimeter of seedlings were extracted, by which whether the cell was suitable for transplanting could be determined. In this research, using tomato seedlings as samples, good identification rate for suitable seedling was obtained (98%). The result shows that this method can be used in various growing conditions of seedling, and this system can be used for automatic seedling transplanting robot.
Number of references: 16
Main heading: Plants (botany)
Controlled terms: Computer vision - Digital image storage - Imaging systems - Landforms - Watersheds
Uncontrolled terms: Digital image processing - Growing conditions - Identification failure - Identification rates - Machine vision - Machine vision systems - Seedling transplanting - Tomato seedlings - Transplanting time - Watershed algorithm
Classification code: 741.3 Optical Devices and Systems - 741.2 Vision - 741 Light, Optics and Optical Devices - 731.6 Robot Applications - 723.5 Computer Applications - 746 Imaging Techniques - 723.2 Data Processing and Image Processing - 722.1 Data Storage, Equipment and Techniques - 481.1 Geology - 461.9 Biology - 444.1 Surface Water - 722.4 Digital Computers and Systems
Database: Compendex
42. Accession number: 20092712172578
Title: Design and test of 1GSZ-350 stubble-breaking and rotary tilling combined cultivating machine
Authors: Zhang, Xinyue1 ; Li, Lianhao1 ; Wang, Chun1 ; Zhao, Dayong2
Author affiliation: 1 College of Engineering,
2 Harbin Research Institute of Agricultural Mechanization,
Corresponding author: Wang, C. (wangchun1963@126.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 73-77
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: In order to meet the needs of agricultural implements matched with high-powered tractors, a broad width combined cultivating machine was design based on single and combined work of cultivating machines. The combined cultivating machine had the functions of stubble-breaking, rotary tillage and subsoiling. Single works and combined work were carried out. The experimental results showed that the machine could give full play to a operation efficiency of high-power tractor when working. The designed machine could reduce power consumption of tractor, and energy saving was about 14.3%. The arrangement of stubble-breaking blade, deep-shovel and rotary tilling blade was reasonable, and soil moisture conservation efficiency was obvious. The ratios of pulverizing soil and stubble-breaking were above 95%. The designed machine belongs to energy saving of high efficiency machinery, and provides reference for studying on large agricultural implements.
Number of references: 16
Main heading: Machine design
Controlled terms: Agricultural implements - Agriculture - Groundwater - Machinery - Moisture control - Soil conservation - Soil moisture - Tools - Tractors (agricultural) - Tractors (truck) - Water conservation
Uncontrolled terms: Combined tilling machine - Energy saving - High efficiency - High-power - Moisture conservation - Operation efficiencies - Power Consumption - Rotary tillage - Stubble-breaking
Classification code: 944.2 Moisture Measurements - 821.3 Agricultural Methods - 821.1 Agricultural Machinery and Equipment - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 731.3 Specific Variables Control - 663.1 Heavy Duty Motor Vehicles - 605 Small Tools and Hardware - 603 Machine Tools - 601 Mechanical Design - 483.1 Soils and Soil Mechanics - 444.2 Groundwater - 444 Water Resources - 403.1 Urban Planning and Development
Database: Compendex
43. Accession number: 20092712172600
Title: Simulation of cucumber fruit growth in greenhouse based on production of thermal effectiveness and photosynthesis active radiation
Authors: Ni, Jiheng1 ; Chen, Xuehao1 ; Chen, Chunhong2 ; Xu, Qiang1 ; Zhao, Daqiu1
Author affiliation: 1 College of Horticulture and Plant Protected,
2 Key Laboratory of Protected Horticultural Technology,
Corresponding author: Chen, X. (xhchen@yzu.edu.cn)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 192-196
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: In order to improve the ability of predicting the yields of greenhouse cucumber, a model for fruit growth nf greenhouse cucumber was developed based on the effects of temperature and radiation on fruit growth using production of thermal and PAR (TEP) as prediction index. Experiment with other planting data was carried out in greenhouse to collect and validate the model. The results showed that the simulated values agreed well with the measured ones. The determined coefficient (R2) and root mean squared error (RMSE) between the simulated and measured values of fruit length on different leaf axils was 0.7325 and
Number of references: 24
Main heading: Simulators
Controlled terms: Agriculture - Atmospheric temperature - Decision support systems - Fruits - Greenhouses - Mean square error - Photosynthesis - Radiation effects - Three term control systems
Uncontrolled terms: Active radiation - Cucumber - Decision supports - Effects of temperature - Fresh weight - Fruit growth - Greenhouse cucumbers - Growing degree days - Model-based - Prediction accuracy - Root mean squared errors - Satisfactory predictions - Simulation models - Theoretical basis - Thermal effectiveness
Classification code: 723 Computer Software, Data Handling and Applications - 731.1 Control Systems - 741.1 Light/Optics - 744 Lasers - 922.2 Mathematical Statistics - 802.2 Chemical Reactions - 821.4 Agricultural Products - 821.6 Farm Buildings and Other Structures - 912.2 Management - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 711 Electromagnetic Waves - 671 Naval Architecture - 402.1 Industrial and Agricultural Buildings - 443.1 Atmospheric Properties - 621 Nuclear Reactors - 622.2 Radiation Effects - 654.1 Rockets and Missiles - 655.2 Satellites - 657.1 Solar Energy and Phenomena - 662.1 Automobiles
Database: Compendex
44. Accession number: 20092712172595
Title: Effect of different light emitting diode sources on tomato fruit quality during color-changed period
Authors: Chen, Qiang1 ; Liu, Shiqi1 ; Zhang, Zikun1 ; Cui, Huiru1 ; Hao, Shuqin1 ; Liu, Zhongliang1
Author affiliation: 1 State Key Laboratory of Crop Biology,
Corresponding author: Liu, S. (sqliu@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: 5
Issue date: May 2009
Publication year: 2009
Pages: 156-161
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Red light, blue light, red + blue (R+B) light generated by light-emitting diode were applied during tomato color-changed period, and white light generated by fluorescent lamps was used as control. The effects of different light qualities on fruit quality of tomato were studied. The results showed that the lycopene content was the highest and the vitamin C(Vc) content was the lowest under red light among the treatments. The contents of Vc and soluble protein were significantly increased under blue light. There was no obvious difference in Vc content under R+B light treatment and the control, but R+B light had the superiority in promoting the content of soluble protein. The red light and R+B light were the most effective for the increase of the contents of the soluble sugar and titratable acid. Sugar acid ratio under all treatments were significantly higher than that under the control, and it was the greatest under R+B light treatment. The conclusion is that the major light qualities influencing tomato fruit quality during color-changed period are red light and blue light.
Number of references: 26
Main heading: Quality control
Controlled terms: Acids - Color - Diodes - Fluorescent lamps - Fruits - Light emission - Light emitting diodes - Lighting - Physical optics - Quality assurance - Quality function deployment - Sugar (sucrose) - Sugars - Total quality management - Water analysis
Uncontrolled terms: Blue light - Fruit quality - Light emitting diodes (LED) - Light quality - Light treatments - Lycopene content - Red light - Soluble proteins - Soluble sugars - Sugar acid - Titratable acid - Tomato fruits - Vitamin C - White light
Classification code: 804 Chemical Products Generally - 804.1 Organic Compounds - 821.4 Agricultural Products - 822.3 Food Products - 912.2 Management - 913.3 Quality Assurance and Control - 922.2 Mathematical Statistics - 803 Chemical Agents and Basic Industrial Chemicals - 445.2 Water Analysis - 707 Illuminating Engineering - 707.2 Electric Lamps - 714.1 Electron Tubes - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 801 Chemistry
Database: Compendex
45. Accession number: 20092712172594
Title: Marginal effect of the soil temperature environment in greenhouse
Authors: Sun, Zhiqiang1 ; Sun, Li2 ; Wang, Qian3 ; Li, Shengli1
Author affiliation: 1
2 School of Horticulture Landscape Architecture, Henan Institute of Science and Technology,
3
Corresponding author: Sun, Z. (sunzq@public.zz.ha.cn)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 150-155
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: The soil temperature of the marginal area in the greenhouse of steel frame with no pillar was measured and the boundary points were determined in Spring and Winter in
Number of references: 15
Main heading: Greenhouses
Controlled terms: Greenhouse effect - Soils - Solar heating - Temperature - Thermal effects
Uncontrolled terms: Boundary point - Boundary points - Henan Province - Marginal effect - Marginal effects - Optimized designs - Soil temperature - Solar greenhouses - Steel frame
Classification code: 951 Materials Science - 821.6 Farm Buildings and Other Structures - 657.1 Solar Energy and Phenomena - 643.1 Space Heating - 642.1 Process Heating - 641.1 Thermodynamics - 641 Heat and Mass Transfer; Thermodynamics - 531 Metallurgy and Metallography - 483.1 Soils and Soil Mechanics - 451 Air Pollution - 443.1 Atmospheric Properties - 421 Strength of Building Materials; Mechanical Properties - 402.1 Industrial and Agricultural Buildings
Database: Compendex
46. Accession number: 20092712172615
Title: Effect of baling storage on quality of total mixed ration
Authors: Wang, Jing1 ; Wang, Jiaqi1 ; Bu, Dengpan1 ; Guo, Weijie1, 2 ; Wei, Hongyang1 ; Zhou, Lingyun1 ; Liu, Kailang1
Author affiliation: 1 The State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
2
Corresponding author: Wang, J. (wang-jia-qi@263.net)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 280-283
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: In order to make small-scale and individual dairy cattle farms total mixed ration (TMR), research was made to study the storage effects after TMR was baled. Moisture contents of TMR were adjusted to 40%, 50%, and 60%, respectively. Fresh TMR were wrapped and baled using stretch film. After 0, 3, 7, 15, and 30 days of storage, sensory evaluation was carried out, and nutrient contents and fermentation qualities were determined. The results showed that the sensory characters were well kept during first 15 days of storage, while mold occurred on the outer surface after 30 days. Along with the storage time, the nutrient contents increased compared with fresh TMR owing to the dry matter losses during storage. The pH value of baled TMR decreased significantly (P<0.05) along with the proceeding of storage and the TMR with 50% of moisture content had the lowest pH value. The NH3-N content of TMR increased significantly (P<0.05) during storage. And the higher the moisture content was, the higher the NH3-N concentration was. 50% of moisture content was considered to be the preferred selection for baled TMR from the aspects of production, quality and palatability. These results indicate that baling technology can be used to achieve the effective storage of TMR. The small-scale and individual farms can use TMR diets.
Number of references: 19
Main heading: Quality control
Controlled terms: Biochemical engineering - Dairies - Fermentation - Moisture control - Moisture determination - Nutrients - pH effects - Quality assurance - Quality function deployment - Total quality management
Uncontrolled terms: Baling technology - Moisture content - Sensory evaluation - Storage - Total mixed ration
Classification code: 805.1.1 Biochemical Engineering - 821.2 Agricultural Chemicals - 822.1 Food Products Plants and Equipment - 944.2 Moisture Measurements - 822.3 Food Products - 913.3 Quality Assurance and Control - 922.2 Mathematical Statistics - 912.2 Management - 802.2 Chemical Reactions - 801.2 Biochemistry - 402.1 Industrial and Agricultural Buildings - 454.3 Ecology and Ecosystems - 461.8 Biotechnology - 461.9 Biology - 731.3 Specific Variables Control - 801.1 Chemistry, General
Database: Compendex
47. Accession number: 20092712172591
Title: Cow identification technology system based on radio frequency
Authors: Geng, Liwei1 ; Qian, Dongping1 ; Zhao, Chunhui2
Author affiliation: 1 College of Mechanical and Electrical Engineering, Agricultural University of Hebei,
2
Corresponding author: Qian, D. (qdp@mail.hebau.edu.cn)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 137-141
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: In view of the existing problem in China including dairy farm at small scale, low level of production, backward management of technology, single feed, unclear cattle blood type, and animal product without effective guarantee of safety, a dairy cattle identification system was proposed and established, which was based on the radio frequency identification technology. The rumen animal electron blip was adopted to build a permanent digital file of milk cow in this system and each livestock was labeled with one corresponding file. The cow information stored in electronic tags was identified by RFID technology and PC-SCM technology to make each cow under timely monitoring and management. The results show that the reading rate of RFID system was 100% and the reading distance of which can reach more than eight meters. Therefore it is feasible to apply RFID technology in distinguishing the identity of the cow. This method not only makes the dairy farming production under the digital management but also provides a theoretical basis for precision cattle breeding.
Number of references: 20
Main heading: Dairies
Controlled terms: Agriculture - Copying - Radio frequency identification (RFID) - Radio waves - Technology
Uncontrolled terms: Animal products - Blood types - Dairy cattle - Dairy farming - Dairy farms - Digital files - Electronic labels - Electronic tags - Existing problems - Identification - Identification systems - Identification technology - Low level - Management of technology - Milk cow - Monitoring and management - Precision cattle breeding - Radio frequencies - Radio frequency identification technology - Reading rate - RFID systems - RFID technology - Small scale - Theoretical basis
Classification code: 903.2 Information Dissemination - 901 Engineering Profession - 822.1 Food Products Plants and Equipment - 821 Agricultural Equipment and Methods; Vegetation and Pest Control - 745.2 Reproduction, Copying - 731.1 Control Systems - 716.3 Radio Systems and Equipment - 711 Electromagnetic Waves - 402.1 Industrial and Agricultural Buildings
Database: Compendex
48. Accession number: 20092712172584
Title: Optimal design for torsional vibration damper based on sensitivity analysis
Authors: Chai, Guoying1 ; Huang, Shuhe1 ; Yue, Wenzhong1 ; Yang, Guichun1 ; Liang, Xingyu2 ; Shu, Gequn2
Author affiliation: 1
2 State Key Laboratory of Engines,
Corresponding author: Liang, X. (lxy@tju.edu.cn)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 105-108
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: For improving the design speed and accuracy, we proposed a numerical model of optimal design for torsional vibration damper in engine shafting based on sensitivity analysis. Firstly by investigation on relationship between design parameter of torsional vibration damper and vibration character, a method of optimal design for torsional vibration damper was discussed. Then through sensitivity analyzing and design variables choosing, optimal design was carried out. At last, the validity and correctness of the model was verified by comparing the above results and experience calculation results. The optimal resonance peak was shifted to higher frequency direction and the resonant amplitude was smaller than that of experience calculation results, which showed precision and accuracy of the optimal design method.
Number of references: 12
Main heading: Sensitivity analysis
Controlled terms: Crankshafts - Damping - Design - Elastic waves - Machine vibrations - Machinery - Optimal systems - Optimization - Vibration control - Vibrators
Uncontrolled terms: Design parameters - Design speed - Design variables - Higher frequencies - Numerical models - Optimal design - Optimal design methods - Resonance peak - Resonant amplitude - Torsional vibration - Torsional vibration damper
Classification code: 751.1 Acoustic Waves - 752.1 Acoustic Devices - 902.1 Engineering Graphics - 921 Mathematics - 921.5 Optimization Techniques - 931.1 Mechanics - 961 Systems Science - 731.3 Specific Variables Control - 408 Structural Design - 601 Mechanical Design - 601.1 Mechanical Devices - 601.2 Machine Components - 601.3 Mechanisms - 691.1 Materials Handling Equipment - 731.1 Control Systems
Database: Compendex
49. Accession number: 20092712172605
Title: Spatial-temporal variability of reclamation soil compaction in coal mine region
Authors: Wang, Yuqin1, 2 ; Li, Xinju3 ; Hu, Zhenqi1 ; Liu, Xueran3 ; Zhao, Yaolun4
Author affiliation: 1 Institute of Land Reclamation and
2 Department of Travel Agency Management,
3
4 The Bureau of Land and Resource
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: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 223-227
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: In order to reveal the spatial-temporal variation law of reclaimed soil compaction in coal mine area, the reclaimed soil compaction variability from vertical and horizontal aspects of five years was analyzed by the testing on the spot and comparing with normal land. The results showed as follows: the reclamation soil surface compaction was the highest with reaching 2050 kPa in first year, and gradually reduced year by year, was the lowest (50 kPa) in the fifth year, and was almost reached the compaction level of unsubsided land. The order spatial variation of soil surface compaction was in the land reclaimed five years(68.40%), next was unsubsided land(52.58%) and the lowest was the land being reclaimed(22.01%); in terms of the variation, the soil compaction is higher and the variation is lower to each soil layer of being reclaimed land, and the compaction of the first three layer is lower but the variation is higher to other redamed land, to the fourth layer(22.86~
Number of references: 23
Main heading: Reclamation
Controlled terms: Coal - Coal industry - Coal mines - Coal reclamation - Compaction - Mines - Mining - Soil mechanics - Soil testing - Soils
Uncontrolled terms: Coal mine areas - First year - Reclaimed land - Reclaimed soil - Soil compaction - Soil layer - Soil surfaces - Spatial temporals - Spatial variations - Three-layer
Classification code: 913 Production Planning and Control; Manufacturing - 911 Cost and Value Engineering; Industrial Economics - 802.3 Chemical Operations - 536.1 Powder Metallurgy Operations - 524 Solid Fuels - 503.1 Coal Mines - 503 Mines and Mining, Coal - 502.1 Mine and Quarry Operations - 483.1 Soils and Soil Mechanics - 452.4 Industrial Wastes Treatment and Disposal - 452.3 Industrial Wastes
Database: Compendex
50. Accession number: 20092712172601
Title: Development and application of field survey technology based GPS and GIS for land consolidation
Authors: Jia, Wentao1 ; Liu, Junming2 ; Yu, Lina3 ; Wang, Maohua2
Author affiliation: 1 Land Consolidation and Rehabilitation Center Ministry of Land and Resources,
2
3
Corresponding author: Liu, J. (liujunming2000@gmail.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 197-201
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Field survey in land consolidation is a complex and high-tech process. The deficiencies of the traditional methods resulted in difficulties of locating, measuring, recording, etc., therefore advanced technology is urgently required. For the scientific management aim of land consolidation, GPS and Mobile GIS were integrated and developed an advanced system, which supports field survey of land consolidation with the advantages of low cost, high efficiency, portable type, user friendly. The key achievement has been applied to the inspection of land development projects and spot check of the occupying and compensating equilibrium item successively in provinces of
Number of references: 15
Main heading: Surveys
Controlled terms: Geographic information systems - Global positioning system - Personal digital assistants
Uncontrolled terms: Field survey - GIS - GPS - Land consolidation - PDA
Classification code: 903.3 Information Retrieval and Use - 903.1 Information Sources and Analysis - 723.3 Database Systems - 943.3 Special Purpose Instruments - 722 Computer Systems and Equipment - 655.2.1 Communication Satellites - 405.3 Surveying - 716.3 Radio Systems and Equipment
Database: Compendex
51. Accession number: 20092712172580
Title: Prediction method for the operation level of agricultural mechanization in
Authors: Ju, Jinyan1 ; Wang, Jinwu1
Author affiliation: 1 College of Engineering,
Corresponding author: Wang, J. (jinwuw@163.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 83-88
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: The level of operation of agricultural mechanization is a complicated non-linear system, whose developmental changes have dual trends of increase and fluctuation in
Number of references: 19
Main heading: Neural networks
Controlled terms: Granular materials - Harvesting - Irrigation - Linear systems - Machinery - Mathematical models - Mechanization - Nonlinear systems - Speech recognition
Uncontrolled terms: Agricultural mechanization - BP neural networks - Combined prediction models - Comprehensive model - Developmental changes - Fitting method - GM(1,1) models - Grey neural networks - Operation level of agricultural mechanization - Operation levels - Plant protection - Prediction methods - Prediction model
Classification code: 951 Materials Science - 921 Mathematics - 821.3 Agricultural Methods - 751.5 Speech - 961 Systems Science - 731.1 Control Systems - 723.4 Artificial Intelligence - 601 Mechanical Design - 461.1 Biomedical Engineering - 723.5 Computer Applications
Database: Compendex
52. Accession number: 20092712172567
Title: Experiment of fertigation uniformity of drip fertigation machine
Authors: Zhou, Zhou1, 2 ; Fu, Zetian1 ; Wang, Xiu2 ; Qi, Lijun1
Author affiliation: 1
2 National Engineering Research Centre for Information Technology in Agriculture,
Corresponding author: Fu, Z. (fzt@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: 5
Issue date: May 2009
Publication year: 2009
Pages: 7-13
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: To determine the spatial-temporal variation of flow rate and fertilizer density for the drip fertigation machine under different pressures and the influence of hydraulic characteristics to the irrigation uniformity, the fluorescent tracer solution was applied to simulate fertilizer. In this experiment, a drip fertigation machine with proportional pump was used as research object. The results showed that the uniformity of irrigation and fertilization of the drip fertigation machine was fine under different pressures with uniformly continuous sampling method, but there were fertilizer delay time and stop lag time in application process. The two kinds of time decided the shortest application time and the best way of drip irrigation of the drip fertigation machine. Meanwhile, due to the two kinds of time, the results of fertilizer uniformity test were different when it choosed the different testing time.
Number of references: 16
Main heading: Irrigation
Controlled terms: Fertilizers - Fluorescence - Hydraulic machinery - Time delay
Uncontrolled terms: Application process - Continuous sampling - Delay Time - Discharge - Drip irrigation - Fertigation - Fluorescent tracers - Hydraulic characteristic - Irrigation uniformity - Lag-time - Research object - Spatial temporals - Testing time
Classification code: 821.3 Agricultural Methods - 821.2 Agricultural Chemicals - 804 Chemical Products Generally - 741.1 Light/Optics - 731 Automatic Control Principles and Applications - 713 Electronic Circuits - 632.2 Hydraulic Equipment and Machinery
Database: Compendex
53. Accession number: 20092712172610
Title: Effect of loading method of fruits and vegetables on 1-MCP concentration in sealing plastic tent
Authors: Li, Jiangkuo1 ; Ji, Shujuan2 ; Zhang, Peng1, 2 ; Zhang, Ping1 ; Qu, Yibin2
Author affiliation: 1 National Engineering and
2
Corresponding author: Ji, S. (jsjsyau@sina.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 249-252
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: To guide the reasonable stack of fruits and vegetables in sealing plastic tent before storage, effects of different loading volumes (empty, full-tent and half-tent), different loading containers (cartons, plastic boxes) and addition of fan in treated tent on 1-MCP concentration were studied using Nanguo pear and Jiubao peach as materials. The results showed that the maximum release quantity of 1-MCP was 3.775 μL/L in four hours under the airtight environment. The concentration of 1-MCP in the full-tent was higher than that in the half-tent. The concentration of 1-MCP in tent with plastic boxes as loading container was evidently higher than that with cartons. The concentration of 1-MCP in tent with the fan was higher than that without the fan. Addition of the fan was in favor of the uniform release of 1-MCP.
Number of references: 28
Main heading: Loading
Controlled terms: Concentration (process) - Fruits - Image storage tubes - Paper containers - Plastic containers - Plastics
Uncontrolled terms: 1-methylcyclopropene - Concentration of - Jiubao peach - Nanguo pear - Plastic boxes
Classification code: 821.4 Agricultural Products - 817.1 Polymer Products - 811.1 Pulp and Paper - 802.3 Chemical Operations - 714.1 Electron Tubes - 694.2 Packaging Materials - 694 Packaging - 691.2 Materials Handling Methods - 691 Bulk Handling and Unit Loads - 672 Naval Vessels - 663.1 Heavy Duty Motor Vehicles
Database: Compendex
54. Accession number: 20092712172576
Title: Spatial distribution and conditional simulation of soil pH values in small watershed of loessial gully region
Authors: Wei, Xiaorong1, 2 ; Shao, Ming'an1, 2
Author affiliation: 1 Institute of Soil and Water Conservation, Northwest Sci-Tech. University of Agriculture and Forestry, Yangling 712100,
2 State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau,
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: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 61-67
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Soil pH value is the major property influencing the availability of soil nutrients and behaviors of agricultural chemicals. Understanding the spatial distribution of soil pH values has vital significance for nutrient management and soil pollution prediction. Geostatistical method was used to study the distribution of soil pH values in a watershed in the gully region of the Loess Plateau where landforms, landuse patterns and soil types vary greatly. The results showed that soil pH values in the watershed presented the Spherical-Exponential combined variogram models. The spatial heterogeneity was mainly derived from the random factors such as landuse patterns and soil erosion in the watershed. Crossed Kriging on soil pH value, using organic matter as auxiliary variables, was consistently more effective than Kriging on soil pH value alone and could be used to estimate soil pH value distribution in watershed. The error of crossed Kriging was existed in the complicated environmental factors. Simulated values by sequential Gaussian conditional simulation had the same range but lower average soil pH values compared with measured data. The error was derived from the special Kriging method and the Gaussian treat during the simulation.
Number of references: 14
Main heading: Soil surveys
Controlled terms: Agricultural chemicals - Erosion - Forestry - Geologic models - Landforms - Nutrients - Organic compounds - pH effects - Size distribution - Soil pollution - Soils - Watersheds
Uncontrolled terms: Conditional simulation - Kriging - Loessial gully watershed - Soil pH value - Spatial distribution
Classification code: 933.1 Crystalline Solids - 539.1 Metals Corrosion - 801.1 Chemistry, General - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 804.1 Organic Compounds - 821.0 Woodlands and Forestry - 821.2 Agricultural Chemicals - 822.3 Food Products - 922.2 Mathematical Statistics - 931.2 Physical Properties of Gases, Liquids and Solids - 531.2 Metallography - 406.2 Roads and Streets - 407 Maritime and Port Structures; Rivers and Other Waterways - 423 Non Mechanical Properties and Tests of Building Materials - 444.1 Surface Water - 483.1 Soils and Soil Mechanics - 454.2 Environmental Impact and Protection - 461.9 Biology - 481.1 Geology - 483 Soil Mechanics and Foundations - 454.3 Ecology and Ecosystems
Database: Compendex
55. Accession number: 20092712172582
Title: Trajectory tracking with terminal sliding mode control of cucumber picking robot manipulator based on cycloidal motion
Authors: Yang, Qinghua1 ; Wang, Yan1 ; Gao, Feng1 ; Bao, Guanjun1 ; Xun, Yi1 ; Qian, Shaoming1 ; Zhang, Libin1
Author affiliation: 1 The MOE Key Laboratory of Mechanical Manufacture and Automation, Zhejiang University of Technology,
Corresponding author: Zhang, L. (lbz@zjut.edu.cn)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 94-99
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Cucumber picking robot is the concrete application of robot technology in agriculture. Trajectory planning which enables cucumber picking robot to reach the picking target fast and stably is one of the most important research contents of cucumber picking robot. The cycloidal motion, which has the properties of continuity and zero velocity and acceleration at the ports of the bounded interval, was proposed as a feasible approach to plan trajectory in joint space of robot manipulator. Moreover, in order to achieve precise tracking of the desired trajectory, a fast and non-singular terminal sliding mode controller with the approaching law combining exponent with power function was constructed. Compared with linear sliding mode surface, it exhibits some superior properties such as fast and finite time convergence by adopting non-linear sliding mode surface. In addition, it also possesses the advantages of non-singularity and chattering-free as compared with conventional terminal sliding mode. The robustness of the controller is verified with Lyapunov stability theory. Theoretical analysis and simulation experiments show that faster and higher precision tracking performance was obtained by using the presented algorithm.
Number of references: 16
Main heading: Trajectories
Controlled terms: Control theory - Controllers - Flexible manipulators - Industrial robots - Modular robots - Robot applications - Sliding mode control
Uncontrolled terms: Analysis and simulation - Concrete applications - Cucumber picking robots - Cycloidal motion - Finite-time convergence - Joint space - Lyapunov stability theory - Non-linear - Non-singular terminal sliding modes - Nonsingularity - Picking robot - Power functions - Precision tracking - Robot manipulator - Robot technology - Sliding mode surface - Terminal sliding mode - Terminal sliding mode control - Trajectory Planning - Trajectory tracking - Zero velocity
Classification code: 912.1 Industrial Engineering - 732.1 Control Equipment - 731.6 Robot Applications - 731.5 Robotics - 731.1 Control Systems - 691.1 Materials Handling Equipment - 655.2 Satellites - 654.1 Rockets and Missiles - 404.1 Military Engineering
Database: Compendex
56. Accession number: 20092712172614
Title: Effects of edible coatings on postharvest qualities of Huanghua pear fruits during cold storage
Authors: Zhou, Ran1 ; Yan, Liping2 ; Xie, Jing1 ; Mo, Yun3 ; Li, Yunfei3 ; Chen, Jing4
Author affiliation: 1 College of Food Science and Technology,
2 Department of Economics and Management, Gao'an Campus of
3 Department of Food Science and Technology,
4 Beijing Dafa Chia Tai Company, Limited,
Corresponding author: Zhou, R. (rzhou@shou.edu.cn)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 275-279
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: To investigate the effects of edible coatings such as shellac coating and SemperfreshTM coating on the quality of Huanghua pear fruits (Pyrus pyrifolia Nakai, cv. Huanghua) during cold storage at
Number of references: 22
Main heading: Fruits
Controlled terms: Coatings - Cold storage - Food additives - Ketones - Magnetic resonance imaging - Magnetic storage - Magnetism - Nuclear magnetic resonance - Nuclear magnetic resonance spectroscopy - Organic acids - Quality assurance - Quality control - Quality function deployment - Refrigerators - Resonance - Soil conditioners - Total quality management
Uncontrolled terms: Ascorbic acids - Coating treatment - Edible coating - Edible coatings - Huanghua pear fruits - Internal quality - Pear fruit - Postharvest quality - Pyrus pyrifolia nakai - Respiration rate - Signal intensities - Soluble solids - Titratable acidity - Weight loss
Classification code: 804.1 Organic Compounds - 813.2 Coating Materials - 821.4 Agricultural Products - 822.3 Food Products - 912.2 Management - 804 Chemical Products Generally - 913.3 Quality Assurance and Control - 931.1 Mechanics - 931.2 Physical Properties of Gases, Liquids and Solids - 931.3 Atomic and Molecular Physics - 932.2 Nuclear Physics - 922.2 Mathematical Statistics - 803 Chemical Agents and Basic Industrial Chemicals - 483.1 Soils and Soil Mechanics - 539 Metals Corrosion and Protection; Metal Plating - 644.3 Refrigeration Equipment and Components - 694.4 Storage - 701 Electricity and Magnetism - 461.1 Biomedical Engineering - 701.2 Magnetism: Basic Concepts and Phenomena - 711.1 Electromagnetic Waves in Different Media - 722.1 Data Storage, Equipment and Techniques - 746 Imaging Techniques - 751.1 Acoustic Waves - 708.4 Magnetic Materials
Database: Compendex
57. Accession number: 20092712172574
Title: Interrill and rill erosion tracing on cultivated slopes using 7Be during individual rainfall event
Authors: Liu, Gang1, 2, 3 ; Yang, Mingyi1 ; Liu, Puling1 ; Tian, Junliang1
Author affiliation: 1 State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau,
2 Institute of Geo-hazard Prevention and Mitigation,
3
Corresponding author: Yang, M. (ymyzly@163.com)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 47-53
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: Understanding the processes of interrill and rill erosion is necessary to develop soil erosion prediction models. However, it is difficult to obtain the information using traditional monitoring techniques. In the study, considering deposition at the base of slope area, 7Be was used as a tracer to describe the interrill and rill erosion dynamic during a simulated rainfall event in a slope farmland with a gradient of 25°. The results indicated that the appearance time of significant rill calculated by 7Be content of sediment exuded from the A and B plots was delayed for 45 min and 11 min respectively compared with actual time because of deposition at the base of slope area. Based on the mass balance of 7Be in the eroded soil and in the sediment and the balance of sediment mass, contributions of interrill and rill erosion were separately partitioned to the total soil loss, deposition at the base of slope area and sediment from the plots. In total, the contributions of interrill erosion to the sediment which was delivered out of plot gradually decreased temporally and rill erosion increased. In both plots, the relative errors between calculation values of rill erosion on slopes and deposition in the foot area using 7Be and measurement values of them were low. Therefore, 7Be tracer could accurately quantify the processes of soil erosion.
Number of references: 20
Main heading: Erosion
Controlled terms: Deposition - Geologic models - Sedimentology - Soils
Uncontrolled terms: 7Be tracer - Eroded soils - Interrill - Interrill erosion - Mass balance - Monitoring techniques - Rainfall event - Relative errors - Rill erosion - Simulated rainfall - Soil erosion - Soil loss
Classification code: 802.3 Chemical Operations - 539.3 Metal Plating - 539.1 Metals Corrosion - 813.1 Coating Techniques - 483.1 Soils and Soil Mechanics - 481.1 Geology - 407 Maritime and Port Structures; Rivers and Other Waterways - 483 Soil Mechanics and Foundations
Database: Compendex
58. Accession number: 20092712172609
Title: Effects of irradiation sterilization on the characteristics of liquid egg white
Authors: Huang, Xiaobo1, 3 ; Ma, Meihu2 ; Li, Wenge4
Author affiliation: 1 College of Food Science and Technology,
2
3
4 Hunan Institute for Application of Atomic Energy in Agriculture,
Corresponding author: Ma, M. (mameihuhn@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: 5
Issue date: May 2009
Publication year: 2009
Pages: 244-248
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: To explore the changes of the characteristics of liquid egg white treated by irradiation and provide experimental basis for application of irradiation sterilization technology in liquid egg, changes of the pH value, color, viscosity, thermal denaturation, foamability and emulsibility of liquid egg white were examined. The results showed that the pH value of liquid egg white decreased as the radiation dose increased in the range of 0~3.0 kGy, but the decrease was not significant. The viscosity decreased significantly when the irradiation dose increased from 0 to 0.4 kGy, whereas changes in viscosity were not great when the irradiation dose was higher than 0.4 kGy. There was no change in color, when the egg white was irradiated. When the egg white was irradiated with a dose higher than 2.0 kGy, the color of protein colloid became brown, and the color deepened with the increase of radiation dose when the egg white was heated to solidification. Foamability of liquid egg white increased, but foam stability, emulsibility and emulsion stability of liquid egg white decreased with radiation dose increasing.
Number of references: 20
Main heading: Radiation
Controlled terms: Color - Dosimetry - Emulsification - Irradiation - Liquids - pH effects - Physical properties - Proteins - Pyrolysis - Sterilization (cleaning) - Viscosity
Uncontrolled terms: Egg - Egg white - Emulsion stability - Foam stability - Foamability - Irradiation dose - pH value - Radiation dose - Sterilization - Sterilization technology - Thermal denaturations
Classification code: 802.2 Chemical Reactions - 802.3 Chemical Operations - 804.1 Organic Compounds - 822.2 Food Processing Operations - 931.2 Physical Properties of Gases, Liquids and Solids - 932.1 High Energy Physics - 944.8 Radiation Measurements - 801.1 Chemistry, General - 462.1 Biomedical Equipment, General - 622.2 Radiation Effects - 631.1 Fluid Flow, General - 657.1 Solar Energy and Phenomena - 711 Electromagnetic Waves - 711.1 Electromagnetic Waves in Different Media - 741.1 Light/Optics
Database: Compendex
59. Accession number: 20092712172607
Title: Effects of high hydrostatic pressure processing on microbial inactivation in fresh fruit and vegetable juice
Authors: Jiang, Bin1 ; Hu, Xiaosong1 ; Liao, Xiaojun1 ; Zhang, Yan1 ; Wu, Jihong1 ; Sun, Zhijian1
Author affiliation: 1 College of Food Science and Nutritional Engineering,
Corresponding author: Zhang, Y. (zhangyan348@yahoo.cn)
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 25
Issue: 5
Issue date: May 2009
Publication year: 2009
Pages: 234-238
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Document type: Journal article (JA)
Publisher: Chinese Society of Agricultural Engineering, Agricultural
Abstract: To prevent the fresh fruit and vegetable juices from being infected by microorganisms and decaying, high hydrostatic pressure, as an alternative sterilization technology was applied to reduce the amount of microorganisms, extend the shelf life and ensure the safety of products. Effects of high hydrostratic pressure (HHP) processing on change of colony forming unit in fresh apple juice and carrot juice during the storage were investigated to ensure the biosafety. The results showed that HHP was more suitable for fresh apple juice at lower pH value than carrot juice at neutral pH value. With the increase of pressure and holding time, the amount of microorganisms decreased significantly (P<0.05). Furthermore, the HHP-treated apple juice presented a longer shelf life than carrot juice did under the similar conditions. The fresh apple juice treated by HHP at 400 MPa for 15 min can be stored at
Number of references: 16
Main heading: Organic polymers
Controlled terms: Fruit juices - Fruits - Hydraulics - Hydrodynamics - Hydrostatic pressure - Microorganisms - pH effects - Sterilization (cleaning)
Uncontrolled terms: Fresh apple juice - Fresh carrot juice - High hydrostatic pressure - Sterilization - Storage
Classification code: 822.2 Food Processing Operations - 821.4 Agricultural Products - 815.1.1 Organic Polymers - 802.3 Chemical Operations - 801.2 Biochemistry - 822.3 Food Products - 801.1 Chemistry, General - 631.2 Hydrodynamics - 631.1.1 Liquid Dynamics - 462.1 Biomedical Equipment, General - 461.9 Biology - 632.1 Hydraulics
Database: Compendex