2009年第40卷第5期共收录47篇
3. Accession number:  20092412122983
  Title:  Calibration transfer of NIRS on silage by slope/bias and local centering technique
  Authors:  Liu, Xian1 ; Dong, Suxiao1 ; Han, Lujia1 ; Yang, Zengling1 ; Xu, Chuncheng1 
  Author affiliation:  1  College of Engineering, China Agricultural University, Beijing 100083, China
  Corresponding author:  Han, L. (hanlj@cau.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  153-157
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: With the aim to demonstrate the feasibility of calibration transfer of near-infrared spectroscopy on silage, two types of near-infrared spectrometer of Nicolet ANTARIS (master) and FOSS 6500 (slave), and two methods of slope/bias and local centering were studied. Results show that after calibration transferring the determination coefficient of calibration (R2) and determination coefficient of cross validation (Rcv2) were all greater than 0.85. The standard error of prediction and bias were 20.27 g/kg and -3.75, 27.67 g/kg and -6.17 for slope/bias and local centering technique respectively, which were comparable with the standard error of prediction value (20.60 g/kg) and bias value (-1.04) of the original model of FOSS 6500 spectrometer. These results were greatly improved from the standard error of prediction value (39.65 g/kg) and bias value (-33.60) before calibration transferring. Both of the two methods of calibration transfer worked successfully.
  Number of references:  20
  Main heading:  Infrared spectroscopy
  Controlled terms:  Calibration  -  Infrared spectrometers  -  Spectrometry  -  Spectroscopic analysis  -  Spectrum analysis  -  Standards  -  Textiles
  Uncontrolled terms:  Calibration transfer  -  Cross validation  -  Determination coefficients  -  Local centering  -  Near infrared spectrometer  -  Original model  -  Silage  -  Slope/bias  -  Standard error of prediction
  Classification code:  944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments  -  943 Mechanical and Miscellaneous Measuring Instruments  -  942 Electric and Electronic Measuring Instruments  -  941.4 Optical Variables Measurements  -  941 Acoustical and Optical Measuring Instruments  -  931.2 Physical Properties of Gases, Liquids and Solids  -  922.2 Mathematical Statistics  -  921 Mathematics  -  902.2 Codes and Standards  -  819 Synthetic and Natural Fibers; Textile Technology  -  801 Chemistry  -  741.3 Optical Devices and Systems  -  741.1 Light/Optics
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

19. Accession number:  20092412122978
  Title:  Flavonoids ultrasonic extraction from Lycium barbarum L.
  Authors:  Jia, Shaoqian1 ; Wu, Caie1 ; Li, Yanxia2 
  Author affiliation: 1 College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China
  2 Research Center of Agricultural Resources and Environments, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
  Corresponding author:  Wu, C. (sxwucaie@163.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  130-134
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher: Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: In order to improve the extraction effect of flavonoids from Lycium barbarum L., ultrasonic was used to extract flavonoids of Lycium barbarum L. Through single fraction experiments and orthogonal experiments, the optimal technological parameters were determined. The result expresses the optimal technological parameters are the concentration of ethanol 80%, liquid to solid ratio 50 mL/g, ratio of ultrasonic run and interim time 3 s/1 s, ultrasonic power 500 W, extracting 50 min, the extraction rate was 89.87%.
  Number of references:  12
  Main heading:  Ultrasonics
  Controlled terms:  Ethanol
  Uncontrolled terms:  Concentration of  -  Extraction rate  -  Flavonoids  -  Liquid to solid ratio  -  Lycium barbarum  -  Lycium barbarum L.  -  Orthogonal experiment  -  Technological parameters  -  Ultrasonic extraction  -  Ultrasonic power
  Classification code:  523 Liquid Fuels  -  753.1 Ultrasonic Waves  -  804.1 Organic Compounds
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

20. Accession number:  20092412122962
  Title:  Design of dual-sensor for measuring soil water characteristic curve
  Authors:  Ren, Shujuan1 ; Sun, Yurui1 ; Ren, Tusheng2 
  Author affiliation: 1 Research Center for Precision Agriculture, China Agricultural University, Beijing 100083, China
  2 College of Resources and Environmental Sciences, China Agricultural University, Beijing 100083, China
  Corresponding author:  Sun, Y. (pal@cau.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  56-58 91
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: Based on a commercialized tensiometer, a dual-sensor was presented that it was able to simultaneously determine soil matric suction and volumetric water content, and therefore obtain soil water characteristic curve (SWCC) directly. Soil volumetric water content was measured by employing the metallic tube of the tensiometer as an antenna, whose radiating impedance varied as soil water content. Soil samples of three texture classes (sand, sandy-loam, and clay-loam) were tested and compared with the data from the sand box and pressure chamber methods. The results indicate that for all the three soils, the RMSE of the dual sensor was less than 0. 05, the results of the dual-sensor agreed to that of classical method.
  Number of references:  8
  Main heading:  Water content
  Controlled terms:  Clay minerals  -  Humidity control  -  Sensors  -  Soil moisture  -  Soil structure interactions  -  Underwater soils
  Uncontrolled terms:  AS-soils  -  Classical methods  -  Dual-sensor  -  Matric suction  -  Metallic tubes  -  Pressure chamber  -  Soil matric suction  -  Soil sample  -  Soil-water characteristic curve  -  Volumetric water content   -  Water characteristic curve
  Classification code:  801 Chemistry  -  732.2 Control Instrumentation  -  643.3 Air Conditioning  -  483.2 Foundations  -  483.1 Soils and Soil Mechanics  -  482.2 Minerals  -  471.1 Oceanography, General  -  444 Water Resources  -  402 Buildings and Towers
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

30. Accession number:  20092412122957
  Title:  Multidimensional vibration isolation device of vehicles and its simulation
  Authors:  Yu, Daguo1 ; Ma, Lüzhong1 ; Yang, Qizhi1 
  Author affiliation:  1  School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China
  Corresponding author:  Yu, D. (yudaguo12@qq.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  29-33
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The impact and vibration of vehicles often occurs in three directions along or around axes, which need multidimensional vibration isolation. If the technology was applied on one dimensional vibration isolation into multidimensional vibration isolation simply, the vibration isolation device would interfere. So a multidimensional vibration isolation device of vehicles was developed. It is composed of two Stewart mechanisms: down platform and up platform. The two Stewart mechanisms with six degrees of freedom lead to the same degrees of freedom of the device. Damping and springs installed in joints of the two Stewart mechanisms isolate the vibration of vehicles. Dynamics simulations by ADAMS show that when the down platform is given an impulse, 6 accelerations of up platform are less than those of down platform obviously, and they decline rapidly. The shocking time, damping coefficient, stiffness coefficient of springs were simulated.
  Number of references:  10
  Main heading:  Vibrators
  Controlled terms:  Damping  -  Degrees of freedom (mechanics)  -  Steel bridges  -  Vehicles
  Uncontrolled terms:  Damping coefficients  -  Degrees of freedom  -  Dynamics simulation  -  Impulse  -  Multidimensional vibrations  -  Simulation  -  Six degrees of freedom  -  Stewart mechanism  -  Stiffness coefficients  -  Vibration isolation   -  Vibration isolations
  Classification code:  752.1 Acoustic Devices  -  731.5 Robotics  -  691.1 Materials Handling Equipment  -  931.1 Mechanics  -  601.1 Mechanical Devices  -  432 Highway Transportation  -  401.1 Bridges  -  545.3 Steel
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

42. Accession number:  20092412122992
  Title:  Modification of raceway control theory on the dynamic equations group of high-speed ball bearing
  Authors:  Zhao, Chunjiang1, 2 ; Wang, Jianmei1 ; Huang, Qingxue1 ; Ma, Lifeng1 
  Author affiliation:  1  College of Material Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China
  2  College of Mechanical Science and Engineering, Jilin University, Changchun 130025, China
  Corresponding author:  Zhao, C. (zhaochunjiang2009@126.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  199-202
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: Based on the analysis of ratio of revolution and rolling on high-speed ball bearing, the shortage of raceway control theory was put forward. Then a precise relationship between inner and outer raceway control parameter was established according to the equilibration of frictional force and gyro moment on rolling ball. The semi-empirical formula about friction factor between rolling element and raceway was introduced into the calculation process. To avoid the shortage of raceway control theory, the attitude angle of rolling ball decided by raceway control theory is substituted by the one obtained from the analysis of D' Alembert principle. So the friction factor and attitude angle of rolling ball are depended on normal load of rolling ball, and then an accurate form was provided and make sure it could be solved with dynamic equations group of high-speed ball bearing. At last, an example was given to compare the results from body matter with the ones from existing method, and indicates that the method of body is accurate and more closing to the practice.
  Number of references:  9
  Main heading:  Ball bearings
  Controlled terms:  Control system analysis  -  Friction  -  Speed  -  Spheres  -  System theory  -  Tribology
  Uncontrolled terms:  Attitude angle  -  Calculation process  -  Control parameters  -  D'Alembert principle  -  Dynamic equations  -  Existing method  -  Friction factors  -  Frictional forces  -  High-speed  -  High-speed ball bearing   -  Modification  -  Normal loads  -  Raceway control theory  -  Rolling balls  -  Rolling elements  -  Semi-empirical formulas  -  Semi-empirical friction factor
  Classification code:  931.2 Physical Properties of Gases, Liquids and Solids  -  931.1 Mechanics  -  931 Classical Physics; Quantum Theory; Relativity  -  912.3 Operations Research  -  961 Systems Science  -  731.4 System Stability  -  631 Fluid Flow  -  601.2 Machine Components  -  461.1 Biomedical Engineering  -  731.1 Control Systems
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

43. Accession number:  20092412122984
  Title:  Design of conveyer and turnover mechanism of apple grader
  Authors:  Li, Jing1 ; Zhang, Dongxing1 ; Liu, Bao1 
  Author affiliation:  1  College of Engineering, China Agricultural University, Beijing 100083, China
  Corresponding author:  Li, J. (lijingbj@yeah.net) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  158-161 157
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The method and principle of apple orientation and turnover were described. An apple conveyer and turnover mechanism were specially designed to accomplish the orientation of different diameter apples and turn them over by the approximately same angular speed in order to collect and process the images of apples for apple grading in next step. Experiment results indicate that the mechanism could accomplish apple orientation and turnover, image collection results can meet grading requirement.
  Number of references:  7
  Main heading:  Fruits
  Controlled terms:  Conveyors  -  Grading  -  Machine design
  Uncontrolled terms:  Angular speed  -  Apple  -  Conveyer and turnover mechanism  -  Image collection  -  Image collections  -  Orientation
  Classification code:  601 Mechanical Design  -  692.1 Conveyors  -  821.4 Agricultural Products  -  913.3 Quality Assurance and Control
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

44. Accession number:  20092412122964
  Title:  Near-infrared spectral detection of soil moisture based on feature extraction of FFT
  Authors:  Li, Xiaoyu1 ; Xiao, Wu1 ; Li, Peiwu2 ; Lei, Tingwu3 ; Wang, Wei1 ; Feng, Yaoze1 
  Author affiliation:  1  College of Engineering and Technology, Huazhong Agricultural University, Wuhan 430070, China
  2  Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
  3  Institute of Soil and Water Conservation, Ministry of Water Resources, Chinese Academy of Sciences, Yangling 712100, China
  Corresponding author:  Li, X. (lixiaoyu@mail.hzau.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  64-67
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: Three kinds of soil from Hubei province was studied, PLS and cross calibration method was employed to establish soil moisture analysis model. The result indicates that the model's decision coefficient was 0.995, and RMSECV was 0.801%, the model's forecast decision coefficient was 0.992, the RMSEP was 0.912%. Using the model to forecast loessial soil on Loess Plateau region, the error was greater than 4%. At last, the study of the Hubei yellow brown earth, paddy field soil and alluvial soil samples collected from Fourier transform parameters and characteristics of soil moisture to establish PLS prediction model, model decision coefficient was 0.988, and RMSECV is 1.106%. And the error of model prediction of loessial soil was less than 2%, the accuracy improved more greatly than traditional model.
  Number of references:  12
  Main heading:  Geologic models
  Controlled terms:  Feature extraction  -  Groundwater  -  Infrared devices  -  Moisture determination  -  Permittivity  -  Soil moisture
  Uncontrolled terms:  Alluvial soil  -  Cross calibration  -  Hubei Province  -  Loess Plateau  -  Model prediction  -  Near infrared  -  Paddy field soils  -  Prediction model  -  Soil moisture analysis
  Classification code:  944.2 Moisture Measurements  -  751.1 Acoustic Waves  -  741.3 Optical Devices and Systems  -  741.1 Light/Optics  -  723.5 Computer Applications  -  716 Telecommunication; Radar, Radio and Television  -  708.1 Dielectric Materials  -  701 Electricity and Magnetism  -  483.1 Soils and Soil Mechanics  -  481.1 Geology  -  444.2 Groundwater
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

45. Accession number:  20092412122967
  Title:  Effects of the type of the snapping rolls of vertical corn harvester on harvesting performance
  Authors:  Yan, Hongyu1, 2 ; Wu, Wenfu1 ; Han, Feng1 ; Liu, Feng2 
  Author affiliation:  1  School of Biological and Agriculture Engineering, Jilin University, Changchun 130022, China
  2  Jilin Academy of Agricultural Machinery, Changchun 130022, China
  Corresponding author:  Wu, W. (wwfzlb@126.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  76-80
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The effects of the type of the snapping rolls of the harvester on harvesting performance are significant. For the vertical corn harvester, the effects of the type of the snapping rolls on harvesting performance were studied through orthogonal test, while the movement parameters of the interaction were analyzed, to determine the optimal production conditions. The pattern and shape of snapping roll on loss rate is significant; the roll of dome pattern under the conditions of 1000 r/min can achieve the best results. The influence of roll shape on power is significant; the roll of dome pattern under the conditions of 900 r/min can achieve the lowest power consumption. The relationship between working gap of snapping roll and loss rate is linear.
  Number of references:  10
  Main heading:  Harvesters
  Controlled terms:  Domes  -  Electric power utilization  -  Harvesting
  Uncontrolled terms:  Corn harvester  -  Loss rate  -  Power consumption  -  Type of the snapping roll  -  Working gap
  Classification code:  408.2 Structural Members and Shapes  -  706.1 Electric Power Systems  -  821.1 Agricultural Machinery and Equipment  -  821.3 Agricultural Methods
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

59. Accession number:  20092412122976
  Title:  Numerical simulation of power consumption characteristics in conveying element in triple screw extruder
  Authors:  Zhu, Xiangzhe1 ; Xi, Wen1 
  Author affiliation:  1  School of Mechanical Engineering, Liaoning Shihua University, Fushun 113001, China
  Corresponding author:  Zhu, X. (xzzhu@126.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  119-123
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The flow, temperature, pressure fields and viscous heating distribution in a triple screw extruder were studied by using computational fluid dynamics (CFD) method. The effects of screw rotational speeds, numbers of screw thread, pressure difference and flow rate on productivity ratio and power consumption were employed with considering temperature by pressure build-up and viscous dissipation. At the same time, the characteristics of power consumption of triple screw extruder were compared with those of traditional twin screw extruder. The results show that with the increase of screw rotation speed, pressure difference and flow rate, the power consumption of triple screw extruder increases and the productivity ratio of it decreases. With the increase of numbers of screw thread, the power consumption of triple screw extruder increases. By comparing, it is found that the productivity ratio of triple screw extruder increases 30% than that of twin screw extruder.
  Number of references:  8
  Main heading:  Electric power utilization
  Controlled terms:  Computational fluid dynamics  -  Computer simulation  -  Flow rate  -  Mathematical models  -  Plastics extruders  -  Screw threads
  Uncontrolled terms:  Computational fluid dynamics methods  -  Numerical simulation  -  Power consumption  -  Pressure build up  -  Pressure differences  -  Pressure field  -  Productivity ratios  -  Rotation speed  -  Rotational speed  -  Screw extruders   -  Triple screw extruder  -  Twin screw extruders  -  Viscous dissipation  -  Viscous heating
  Classification code:  943.2 Mechanical Variables Measurements  -  931.1 Mechanics  -  921.6 Numerical Methods  -  921 Mathematics  -  816.2 Plants and Machinery for Plastics and Other Polymers  -  723.5 Computer Applications  -  706.1 Electric Power Systems  -  631.1.2 Gas Dynamics  -  631.1.1 Liquid Dynamics  -  631 Fluid Flow  -  601.2 Machine Components
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

60. Accession number:  20092412122973
  Title:  Optimization of processing parameters in unconventional spaghetti production
  Authors:  Chen, Jie1 ; Wang, Chun1 ; Li, Zhiwei1 ; Wang, Guanyue1 
  Author affiliation:  1  Faculty of Food Science and Technology, Henan University of Technology, Zhengzhou 450052, China
  Corresponding author:  Chen, J. (cjie06@163.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  105-109
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The processing parameters were optimized in unconventional spaghetti productions by using Chinese wheat flour. The results show that the optimal dough is mixed by addition of water in 28%-30%, at the temperature of 5-15°C, with the vacuum of 60-80 kPa, and then the dough is extruded at the temperature of 35-45°C. The quality of spaghetti is controlled by optimizing the parameters of temperature and humidity in pre-drying, main-drying and balance-drying in an industry production line of spaghetti.
  Number of references:  7
  Main heading:  Optimization
  Controlled terms:  Dewatering  -  Drying  -  Humidity control  -  Production
  Uncontrolled terms:  Pre-drying  -  Processing parameters  -  Production line  -  Spaghetti  -  Wheat  -  Wheat flours
  Classification code:  921.5 Optimization Techniques  -  913.2 Production Control  -  913.1 Production Engineering  -  802.3 Chemical Operations  -  643.3 Air Conditioning  -  642.1 Process Heating  -  402 Buildings and Towers
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

61. Accession number:  20092412122991
  Title:  Permeability of cutting fluid in minimum quantity lubrication precision turning
  Authors:  Zhang, Chunyan1, 2 ; Wang, Guicheng1 ; Ma, Lijie3 ; Pei, Hongjie1 ; Wu, Yongxiang2 
  Author affiliation:  1  School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China
  2  Department of Mechanical Engineering, Changshu Institute of Technology, Changshu 215500, China
  3  College of Machinery and Electricity, Henan Institute of Science and Technology, Xinxiang 453003, China
  Corresponding author:  Zhang, C. (zhchy9509@sina.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  194-198
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The permeability of cutting fluids influences cutting effect directly. The main influential factors of cutting fluid penetration in minimum quantity lubrication (MQL) such as nozzle position, spray parameters were analyzed theoretically with spray and fluid mechanics. Based on turning 45 steel tests on CNC super precision machine tool, the cutting effect such as cutting force, surface roughness and chip shape were studied. Theory and tests results show that supplying more cutting fluids from main tool flank at proper position (20 mm from cutting point) can get better cutting effect: low cutting force, low surface roughness and easy treated chip.
  Number of references:  12
  Main heading:  Cutting fluids
  Controlled terms:  Capillarity  -  Contacts (fluid mechanics)  -  Fluid mechanics  -  Lubrication  -  Machinery  -  Precision engineering  -  Surface properties  -  Surface roughness  -  Tool steel  -  Turning
  Uncontrolled terms:  45 steel  -  Chip shape  -  Cutting effect  -  Cutting forces  -  Cutting point  -  Fluid penetration  -  Influential factors  -  Minimum quantity lubrication  -  Penetration  -  Precision machine tools   -  Precision turning  -  Spray parameters
  Classification code:  951 Materials Science  -  931.2 Physical Properties of Gases, Liquids and Solids  -  931.1 Mechanics  -  902.2 Codes and Standards  -  761 Nanotechnology  -  741.3 Optical Devices and Systems  -  714.2 Semiconductor Devices and Integrated Circuits  -  631.1 Fluid Flow, General  -  607.2 Lubrication  -  607.1 Lubricants  -  604.2 Machining Operations  -  601 Mechanical Design  -  545.3 Steel
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

62. Accession number:  20092412122972
  Title: Synergistic effect of pulsed electric fields on the inactivation of Listeria innocua in egg white
  Authors:  Zhao, Wei1 ; Yang, Ruijin2 ; Cui, Qian1 
  Author affiliation:  1  State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
  2  School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
  Corresponding author:  Yang, R. (yrj@jiangnan.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  100-104 134
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The synergistic lethal effect of pulsed electric fields (PEF) combined with mild heat on Listeria innocua in egg white was evaluated. The results show that 0.8, 1.4, 2.3 and 3.8 log reductions of Listeria innocua inoculated in egg white were achieved by 20, 25, 30 and 35 kV/cm for 400 μs at 15°C, respectively. The reductions increased to 1.3, 2.5, 4.9 and 6.4 logs when the temperature was 55°C. Approximately 1.8, 2.7, 3.5 and 3.8 log reductions of Listeria innocua were induced by 35?kV/cm for 100, 200, 300 and 400 μs at 15°C respectively. The reductions increased to 2.7, 3.8, 5.4 and 6.4 logs when the temperature was 55°C. The results demonstrate the synergistic effect of PEF and mild heat on the inactivation of Listeria innocua in egg white. There is a linear relationship between inactivation of Listeria innocua and PEF applied energy.
  Number of references:  17
  Main heading:  Thermal logging
  Controlled terms:  Electric field measurement  -  Electric fields  -  Sterilization (cleaning)
  Uncontrolled terms:  Egg white  -  Lethal effects  -  Linear relationships  -  Listeria innocua  -  Log reductions  -  Pulsed electric field  -  Sterilization  -  Synergistic effect
  Classification code:  462.1 Biomedical Equipment, General  -  512.1.2 Development Operations  -  701.1 Electricity: Basic Concepts and Phenomena  -  802.3 Chemical Operations  -  822.2 Food Processing Operations  -  942.2 Electric Variables Measurements
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

63. Accession number:  20092412122989
  Title:  Management of scientific principle knowledge for product innovation
  Authors:  Liu, Xiaoying1 ; Li, Yan1 ; Huang, Zhenyong1 ; Ma, Tao1 
  Author affiliation:  1  School of Manufacturing Science and Engineering, Sichuan University, Chengdu 610065, China
  Corresponding author:  Li, Y. (liyan@scu.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  182-189
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: To inspire designers to do creative design more effectively, the classification and mapping relation in scientific principle knowledge were analyzed, and an application process for scientific principle knowledge in product innovation was proposed and established. According to the construction principle of domain ontology, the ontology vocabulary of function and effects were extended, and the representation model of scientific principle knowledge was presented and implemented with OWL. A software prototype of ontology-based scientific principle knowledge management system was developed according to the proposed theory, and then the construction mechanism and semantic retrieval technology of the system were discussed. Finally, an example was given to illustrate the system's effectiveness.
  Number of references:  14
  Main heading:  Ontology
  Controlled terms:  Design  -  Knowledge based systems  -  Knowledge management  -  Knowledge representation  -  Software prototyping
  Uncontrolled terms:  Application process  -  Construction principle  -  Creative design  -  Domain ontologies  -  Knowledge management system  -  Mapping relation  -  Ontology modeling  -  Ontology-based  -  Product innovation  -  Representation model   -  Scientific effect  -  Scientific principle knowledge  -  Scientific principles  -  Semantic retrieval  -  Software prototypes
  Classification code:  903.3 Information Retrieval and Use  -  903 Information Science  -  902.1 Engineering Graphics  -  723.5 Computer Applications  -  723.4.1 Expert Systems  -  723.4 Artificial Intelligence  -  723.1 Computer Programming  -  723 Computer Software, Data Handling and Applications  -  408 Structural Design
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

72. Accession number:  20092412122987
  Title:  Effects of air velocity in heat exchanging pipes on heat saving of the underground heat storage system in greenhouse
  Authors:  Wang, Yongwei1 ; Liang, Xifeng2 ; Wang, Jun1 ; Miao, Xiangwen1 
  Author affiliation:  1  School of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310029, China
  2  College of Mechatronics Engineering, China Jiliang University, Hangzhou 310018, China
  Corresponding author:  Wang, Y. (wywzju@zju.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  173-177 202
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The research on effects of air velocity in heat exchanging pipes on heat storage, temperature and humidity in double-film greenhouse with heat storage system was done during heat saving in winter. The temperature and humidity inlet and outlet of heat exchanging pipes, floor temperature in heat storage greenhouse, air temperature and soil temperature in the adjacent reference greenhouse and outside temperature were measured at different air velocities in the heat exchanging pipes. The experiment results show that the average floor temperature in heat storage greenhouse was respectively 0.8, 1.1, 3.1, 3.9, 4.3 and 5.6°C higher than that of the soil in the reference greenhouse when the air velocity in heat exchanging pipes was 0.6, 1.0, 1.5, 2.0, 2.5 and 2.8 m/s in clear day. While the air velocity in heat exchanging pipes was 0. 6-2. 8 m/s, the air temperature in the heat storage greenhouse was 0.1-0.6°C lower than that of the reference greenhouse because the hot air temperature was reduced after flowing through the heat exchanging pipes. However the air temperature in heat storage greenhouse was feasible for plant growth during heat saving.
  Number of references:  18
  Main heading:  Greenhouse effect
  Controlled terms:  Atmospheric temperature  -  Floors  -  Greenhouses  -  Heat exchangers  -  Heat storage  -  Moisture  -  Pipe  -  Plant life extension  -  Soils  -   Velocity
  Uncontrolled terms:  Air velocity  -  Double-film covering  -  Heat exchanging pipe  -  Heat saving effect  -  Underground heat storage
  Classification code:  931.1 Mechanics  -  912.1 Industrial Engineering  -  821.6 Farm Buildings and Other Structures  -  801.4 Physical Chemistry  -  641.2 Heat Transfer  -  619.1 Pipe, Piping and Pipelines  -  616.1 Heat Exchange Equipment and Components  -  525.7 Energy Storage  -  483.1 Soils and Soil Mechanics  -  451 Air Pollution  -  443.1 Atmospheric Properties  -  402.1 Industrial and Agricultural Buildings  -  402 Buildings and Towers
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

73. Accession number:  20092412122993
  Title:  Study of non-stationary signal decoupling based on decorrelation
  Authors:  Meng, Qinghua1 ; Zhao, Wenli1 ; Zeng, Fu1 ; Fan, Zhihua1 
  Author affiliation:  1  School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
  Corresponding author:  Meng, Q. (mengqinghua@gmail.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  203-206
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: This paper described a decoupling algorithm for two signals input and two signals output that is based on non-stationary real signal. Firstly, a model about two non-stationary signals through a linear system outputting two signals was built. According to the model, the system's decoupling was translated into resolving the system's decoupling coefficients. Secondly, the requirements of the algorithm were derived which making the algorithm work correctly. The signals being non-stationary and decorrelation must to be emphasized. Thirdly, the source signals are de-mixing from two output signals through the decoupling coefficients. Two coupled signals were decoupled by using the algorithm and the result proves the validity of the algorithm. The algorithm was already applied to a differential testing bench and the decoupling result can satisfy the engineering requirement.
  Number of references:  9
  Main heading:  Algorithms
  Controlled terms:  Linear systems
  Uncontrolled terms:  De-mixing  -  Decorrelation  -  Decoupling  -  Decoupling algorithms  -  Decoupling coefficients  -  Decoupling results  -  Differential testing  -  Non-stationary signal  -  Nonstationary  -  Nonstationary signals   -  Output signal  -  Random signal  -  Real signals  -  Source signals
  Classification code:  723 Computer Software, Data Handling and Applications  -  731.1 Control Systems  -  921 Mathematics  -  961 Systems Science
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

89. Accession number:  20092412122963
  Title:  Design of time domain reflectometry for application of soil moisture and bulk electrical conductivity measurements
  Authors:  Feng, Wei1 ; Ji, Yicai1 ; Shen, Shaoxiang1 ; Fang, Guangyou1 
  Author affiliation:  1  Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China
  Corresponding author:  Feng, W. (simahouhuanwei@gmail.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  59-63
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: A time domain reflectometry (TDR) used in soil measurements was developed. Based on the measurement requirements of soil parameters, the TDR prototype was designed and manufactured. The pulse generator of TDR can produce a pulse with 140 ps rising-edge. The equivalent sampling precision of the TDR receiver was 8.69 ps. TDR control software was also programmed and the flow chart of the program was illustrated. The relative permittivities of sand and soil were measured. The volumetric moisture content and electrical conductivity (EC) of the loam and sandy loam are inversed. The inversed volumetric moisture results are close to the weighting method results. The test error is below 4%.
  Number of references:  12
  Main heading:  Soil surveys
  Controlled terms:  Decision making  -  Decision theory  -  Decision trees  -  Electric conductivity  -  Electric conductivity measurement  -  Graphic methods  -  Groundwater  -  Moisture determination  -  Permittivity  -  Permittivity measurement   -  Pulse generators  -  Reflection  -  Reflectometers  -  Signal generators  -  Soil moisture  -  Time domain analysis
  Uncontrolled terms:  Conductivity  -  Control software  -  Electrical conductivity  -  Electrical conductivity measurements  -  Flow charts  -  Relative permittivity  -  Sand and soil  -  Sandy loams  -  Soil measurement  -  Soil parameters   -  Test errors  -  Time domain reflectometry  -  Volumetric moisture  -  Volumetric moisture content  -  Weighting methods
  Classification code:  902.1 Engineering Graphics  -  912.1 Industrial Engineering  -  912.2 Management  -  921 Mathematics  -  921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory  -  741.1 Light/Optics  -  922 Statistical Methods  -  941.3 Optical Instruments  -  942.2 Electric Variables Measurements  -  944.2 Moisture Measurements  -  961 Systems Science  -  922.2 Mathematical Statistics  -  731.1 Control Systems  -  444.2 Groundwater  -  483.1 Soils and Soil Mechanics  -  701 Electricity and Magnetism  -  701.1 Electricity: Basic Concepts and Phenomena  -  703.1.1 Electric Network Analysis  -  406.2 Roads and Streets  -  708.1 Dielectric Materials  -  713.4 Pulse Circuits  -  713.5 Other Electronic Circuits  -  715 Electronic Equipment, General Purpose and Industrial  -  723.5 Computer Applications  -  711 Electromagnetic Waves
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

100. Accession number:  20092412122956
  Title:  Numerical simulation and characteristic calculation of hydrodynamic coupling
  Authors:  He, Yandong1 ; Ma, Wenxing1 ; Liu, Chunbao1 
  Author affiliation:  1  College of Mechanical Science and Engineering, Jilin University, Changchun 130025, China
  Corresponding author:  He, Y. (heyandong@gmail.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  24-28
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The unsteady flow of the hydrodynamic coupling was calculated by using the sliding mesh method and mixture model in CFD software. And the velocity and pressure distribution of the hydrodynamic coupling were figured out. Through analyzing the velocity and pressure field, the distribution of the two-phase flow under different filling rate were summarized. The torque was computed based on the numerical solution of 3-D flow field, and the original characteristic of hydrodynamic coupling was predicted. The predicted characteristic was compared with the experimental data. It indicates that the computational result of numerical simulation is well tallied with the results of the experiment, and the result can reflect the basal characteristic of the inner flow in hydrodynamic coupling.
  Number of references:  6
  Main heading:  Fluid dynamics
  Controlled terms:  Flow simulation  -  Hydrodynamics  -  Mathematical models  -  Three dimensional  -  Two phase flow
  Uncontrolled terms:  CFD softwares  -  Characteristic calculation  -  Computational results  -  Experimental data  -  Filling rate  -  Hydrodynamic coupling  -  Inner flow  -  Mixture model  -  Numerical simulation  -  Numerical solution   -  Pressure field  -  Sliding mesh methods
  Classification code:  931.1 Mechanics  -  921 Mathematics  -  902.1 Engineering Graphics  -  723.5 Computer Applications  -  631.2 Hydrodynamics  -  631.1.1 Liquid Dynamics  -  631.1 Fluid Flow, General
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

101. Accession number:  20092412122994
  Title:  Analysis on the vibration of stator of radial piston pump on the mode of constant flow and pressure in time and frequency domain
  Authors:  Wang, Cuntang1 ; Zhou, Tianyue1 ; Gu, Jian2 ; Chen, Junqiang1 
  Author affiliation: 1 School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China
  2 Industry Center, Jiangsu University, Zhenjiang 212013, China
  Corresponding author:  Wang, C. (ctwang@ujs.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  207-212
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: A dynamic model was established based on Newtonian mechanics theory and analysis was made on vibrating characteristics in time and frequency domain to the modes of constant flow and pressure. Measurement mechanism was designed to test the vibration of stator of JB32H-type radial piston pump. It is concluded from analysis and test results that the acceleration of stator vibrates periodically in time domain on the two modes. The amplitude on the mode of constant pressure is smaller than the one on the mode of constant flow. The frequency band is wider on the mode of constant flow than that on the mode of constant pressure. Stator vibrates in the range of higher frequency on the mode of constant flow than on the mode of constant pressure. Constant pressure system of pump is in the function of low-pass filter.
  Number of references:  8
  Main heading:  Frequency domain analysis
  Controlled terms:  Frequency bands  -  Pressure  -  Reciprocating pumps  -  Stators  -  Time domain analysis
  Uncontrolled terms:  Constant flow  -  Constant pressures  -  Frequency domains  -  Higher frequencies  -  Measurement mechanism  -  Newtonian mechanics  -  Newtonian mechanics theory  -  Radial piston pump  -  Test results  -  Time domain   -  Vibration characteristics
  Classification code:  931.1 Mechanics  -  921.3 Mathematical Transformations  -  921 Mathematics  -  731.1 Control Systems  -  716.4 Television Systems and Equipment  -  716.3 Radio Systems and Equipment  -  705.1 Electric Machinery, General  -  703.1.1 Electric Network Analysis  -  618.2 Pumps
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

102. Accession number:  20092412122980
  Title:  Stable interval method based on images to measure drop contact angles on plant leaf surfaces
  Authors:  Qiu, Baijing1 ; Zhao, Xiaoli1 ; Jia, Weidong1 ; Zhang, Zhenlei1 
  Author affiliation:  1  Jiangsu Provincial Key Laboratory of Modern Agricultural Equipment and Technology, Jiangsu University, Zhenjiang 212013, China
  Corresponding author:  Qiu, B. (qbj@ujs.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  139-144
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The measurement method was developed for determining contact angle by fitting the unilateral drop profile. The concept of contact angle's stable interval was put forward, and a numerical experiment method for the optimization of fitting functions and fitting pixel numbers was established. The presented method was compared to the axisymmetric integral method, with contact angle deviation 1.92%. Because the axisymmetric condition was not introduced in this method, it can be used to measure contact angles of non-axisymmetric drops. The contact angles of deionized water on Osmanthus fragrans leaves were measured, and the research results show that: three degree polynomial can be used to fit the drop profile in the pixel number interval and determine contact angle; the contact angles between the principle vien direction and the direction perpendicular to it are obviously different, with the average discrepancy 7.15°, the average discrepancy of left and right contact angles on the same direction is 1.33°.
  Number of references:  11
  Main heading:  Contact angle
  Controlled terms:  Deionized water  -  Drops  -  Image processing  -  Imaging systems  -  Number theory  -  Numerical methods  -  Pixels
  Uncontrolled terms:  Axisymmetric  -  Axisymmetric conditions  -  Drop profile  -  Fitting functions  -  Integral method  -  Interval methods  -  Measurement methods  -  Numerical experiments  -  Plant leaf  -  Plant leaf surface   -  Research results
  Classification code:  931.2 Physical Properties of Gases, Liquids and Solids  -  741 Light, Optics and Optical Devices  -  742.2 Photographic Equipment  -  746 Imaging Techniques  -  921 Mathematics  -  921.6 Numerical Methods  -  931.1 Mechanics  -  723.5 Computer Applications  -  722.2 Computer Peripheral Equipment  -  631.1.1 Liquid Dynamics  -  445.1 Water Treatment Techniques  -  443.2 Meteorological Instrumentation  -  443.1 Atmospheric Properties  -  723.2 Data Processing and Image Processing
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

103. Accession number:  20092412122974
  Title:  Mathematical modeling on heat pump drying of horse mackerel
  Authors:  Shi, Qilong1 ; Zhao, Ya1 ; Li, Zhaojie2 ; Xue, Changhu2 
  Author affiliation:  1 College of Light Industry and Agricultural Engineering, Shandong University of Technology, Zibo 255049, China
  2 College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
  Corresponding author:  Xue, C. (xuech@ouc.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  110-114
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: Drying characteristics of horse mackerel drying in a heat pump dehumidifier (HPD) were studied. Quadratic orthogonal regression design was employed to establish the connection between modeling coefficients (K and n) and temperature and velocity. The experimental data were analyzed with statistical method and a mathematical model was established. The obtained mathematical model suitable for horse mackerel drying by HPD is Page model. There were few differences between the speculated result and the calculated value. Therefore, mathematical model established on these data could be used to describe the heat pump drying process of horse mackerel.
  Number of references:  19
  Main heading:  Mathematical models
  Controlled terms:  Computer simulation  -  Curing  -  Dewatering  -  Drying  -  Heat pump systems  -  Humidity control  -  Pumps
  Uncontrolled terms:  Calculated values  -  Drying characteristics  -  Experimental data  -  Heat pump dehumidifier  -  Heat pump drying  -  Horse mackerel  -  Mackerel drying  -  Mathematical modeling  -  Orthogonal regression  -  Page models   -  Thin layer drying
  Classification code:  818.3 Rubber and Elastomer Processing  -  815.1 Polymeric Materials  -  802.3 Chemical Operations  -  802.2 Chemical Reactions  -  723.5 Computer Applications  -  921 Mathematics  -  643.3 Air Conditioning  -  641.2 Heat Transfer  -  618.2 Pumps  -  616.1 Heat Exchange Equipment and Components  -  402 Buildings and Towers  -  642.1 Process Heating
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

113. Accession number:  20092412122958
  Title:  Fatigue life analysis of vehicles lower suspension arm based on strain signal measured in proving ground
  Authors:  Liu, Xiandong1 ; Zeng, Xiaofang1 ; Shan, Yingchun1 
  Author affiliation:  1  School of Transportation Science and Engineering, Beihang University, Beijing 100191, China
  Corresponding author:  Liu, X. (liuxiandong@buaa.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  34-38
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The strain time history of the strain simulation control point in the lower suspension arm was measured when the car was driven on the intensified road in Hainan automobile proving ground. Then the frequency analysis was done, and the service conditions for quasi-static method were also discussed. Combining finite element static analysis result, the stress time history of the critical location was gained by quasi-static method. Fatigue life of lower suspension arm was evaluated by the nominal stress method. Based on these work, the effect exerted by the choice of the strain simulation control point and the effect of average stress revised arithmetic on the result were investigated. The conclusion is helpful to well choose the strain simulation control point, and has reference value to improve the accuracy of analyzing fatigue life. Although the research in this article is to take the lower suspension arm for an example, the research method and conclusion have also reference value to other parts.
  Number of references:  11
  Main heading:  Suspensions (components)
  Controlled terms:  Automobile parts and equipment  -  Automobile suspensions  -  Concrete bridges  -  Fatigue of materials
  Uncontrolled terms:  Average stress  -  Critical location  -  Fatigue life  -  Fatigue life analysis  -  Finite Element  -  Frequency Analysis  -  Lower suspension arm  -  Nominal stress  -  Quasi-static method  -  Quasi-static methods   -  Reference values  -  research methods  -  Service conditions  -  Simulation control  -  Strain signal  -  Stress time  -  Time history
  Classification code:  663.2 Heavy Duty Motor Vehicle Components  -  662.4 Automobile and Smaller Vehicle Components  -  632.1 Hydraulics  -  951 Materials Science  -  601.2 Machine Components  -  412 Concrete  -  401.1 Bridges  -  421 Strength of Building Materials; Mechanical Properties
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

114. Accession number:  20092412122960
  Title:  CFD numerical simulation and PIV verification about the movement of solid particles in labyrinth channel
  Authors:  Yu, Liming1 ; Wu, Pute1 ; Niu, Wenquan1 ; Fan, Xingke1 ; Zhang, Lin1 
  Author affiliation:  1  College of Water Resource and Architectural Engineering, Northwest A and F University, Yangling 712100, China
  Corresponding author:  Niu, W. (nwq@vip.sina.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  45-51
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: Considering the structural intricacy of the drip irrigation emitter with labyrinth channel, this paper utilized the numerical simulation method by CFD and observation method by PIV to simulate and observe the movement regulation of the solid particles in labyrinth channel, and analyzed the results of the two methods. The results show that the movement trajectories of the solid particles with different diameter and density calculated by CFD software accord with the actual movement trajectories observed by PIV machine well. When the diameter is 65 μm or the density is 1740 kg/m3, the difference of the path length between the numerical simulation by CFD and observation by PIV is very little, but it is big when the diameter or density is big as the actual movement of solid particles are more closing to the mainstream. It is feasible to simulate the velocity of solid particles by CFD software, but the time of the high speed of particles can keep longer than the simulation one.
  Number of references:  20
  Main heading:  Computer software
  Controlled terms:  Computer simulation  -  Irrigation  -  Mathematical models  -  Numerical methods  -  Systems engineering
  Uncontrolled terms:  CFD  -  Drip irrigation emitter  -  Labyrinth channel  -  Movement  -  Particles  -  PIV
  Classification code:  961 Systems Science  -  921.6 Numerical Methods  -  921 Mathematics  -  912 Industrial Engineering and Management  -  821.3 Agricultural Methods  -  723.5 Computer Applications  -  723 Computer Software, Data Handling and Applications
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

115. Accession number:  20092412122970
  Title:  Mechanical properties and micro-structure of wheat stems
  Authors:  Wang, Fene1 ; Huang, Gaobao1 ; Guo, Weijun2 ; Zhang, Fengwei1 ; Wu, Jianmin1 ; Zhao, Duojia1 
  Author affiliation:  1  College of Engineering, Gansu Agricultural University, Lanzhou 730070, China
  2  Department of Mechanical Engineering, Lanzhou Polytechnical College, Lanzhou 730050, China
  Corresponding author:  Huang, G. (huanggb@gsau.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  92-95
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The mechanical properties of wheat stems in mature were tested, and the curves on stress-strain of wheat stems were measured by the electronic testing machine CMT2502. The microstructure of wheat stems was observed, and the SEM images of transverse and longitudinal section of wheat stem were got by scanning electron microscopy. The relation between mechanical properties and microstructure of wheat stems was analyzed, and mechanical model of wheat stem was established. The results show that wheat stem is a typical porous, no-continuous, no-homogeneous and anisotropic composite material. Wheat stems have enough strength and good flexibility, and its carrying capacity depends on the thickness of thick-walled cells and the numbers of vascular bundles, as well as the connection form and strength of cells in stems. The strength and Young's modulus of wheat stems are 30.36-52.65 MPa and 1.14-2.05 GPa respectively.
  Number of references:  13
  Main heading:  Grain (agricultural product)
  Controlled terms:  Biomechanics  -  Composite micromechanics  -  Mechanical properties  -  Microstructure  -  Scanning electron microscopy  -  Strain  -  Stresses
  Uncontrolled terms:  Anisotropic composites  -  Carrying capacity  -  Connection forms  -  Electronic testing  -  Longitudinal section  -  Mechanical model  -  Properties and microstructures  -  SEM image  -  Stem  -  Stress-strain   -  Vascular bundle  -  Wheat  -  Wheat stems  -  Young's Modulus
  Classification code:  951 Materials Science  -  933 Solid State Physics  -  931.2 Physical Properties of Gases, Liquids and Solids  -  931.1 Mechanics  -  821.4 Agricultural Products  -  801.4 Physical Chemistry  -  741.1 Light/Optics  -  531.2 Metallography  -  461.3 Biomechanics, Bionics and Biomimetics  -  421 Strength of Building Materials; Mechanical Properties  -  408.1 Structural Design, General
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

127. Accession number:  20092412122977
  Title:  Effects of Ca2 on the formation and structure of milk gel of mozzarella cheese
  Authors:  Li, Lili1 ; Ren, Fazheng1 ; Cao, Xue1 ; Chen, Dieyan2 ; Wang, Shuo2 
  Author affiliation:  1  College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
  2  School of Sciences, Tsinghua University, Beijing 100084, China
  Corresponding author:  Ren, F. (renfazheng@263.net) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  124-129
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The effects of Ca2 on the formation and structure of milk gel of mozzarella cheese were assessed by two-photon confocal laser scanning microscopy combined with fluorescence dyeing. The results show that Ca2 can stimulate the formation of milk gel extremely and have important effects on the structure of the milk gel, the gel time decreases to 12 min (3 mmol/L Ca2 ), 6 min (6 mmol/L Ca2 ) and 3 min (9 mmol/L Ca2 ) respectively from 38 min (0 mmol/L Ca2 ) after adding of Ca2 . It was found by the real-time investigations that the fine casein granules of milk without Ca2 became to move closer and combined with the crunodes nearby and form bigger clusters. While the milk with Ca2 tends to coagulate in a very short time and form very strong gel, and this may prevent the casein granules from closing up to the crunodes, so the curds are smaller and connections of crunodes are weaker.
  Number of references:  21
  Main heading:  Calcium
  Controlled terms:  Casein  -  Confocal microscopy  -  Dyeing  -  Fluorescence  -  Gelation  -  Gels  -  Granulation  -  Lasers  -  Microstructure  -  Photons   -  Scanning
  Uncontrolled terms:  Cheese  -  Confocal laser scanning microscopy  -  Crunodes  -  Gel time  -  Milk gel  -  Mozzarella cheese  -  Two photon  -  Two-photon confocal laser scanning microscopy
  Classification code:  951 Materials Science  -  802.3 Chemical Operations  -  804 Chemical Products Generally  -  804.1 Organic Compounds  -  819.4 Fiber Products  -  819.5 Textile Products and Processing  -  822.3 Food Products  -  931.3 Atomic and Molecular Physics  -  933 Solid State Physics  -  802 Chemical Apparatus and Plants; Unit Operations; Unit Processes  -  531.2 Metallography  -  549.2 Alkaline Earth Metals  -  741.1 Light/Optics  -  801.4 Physical Chemistry  -  741.3 Optical Devices and Systems  -  744.9 Laser Applications  -  801.3 Colloid Chemistry  -  744.1 Lasers, General
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

128. Accession number:  20092412122952
  Title:  Control of ASS genetic algorithms and fuzzy based on ADAMS/Car and Simulink
  Authors:  Zheng, Quan1 ; Chen, Liqing1 ; Wang, Jixian1 ; Zhang, Xiaolong1 
  Author affiliation:  1  School of Engineering, Anhui Agricultural University, Hefei 230036, China
  Corresponding author:  Chen, L. (clq79111@sina.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  7-11
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The paper presents the design process of controller for active suspension employed by vehicle based on the co-simulation. Firstly, a detailed multi-body dynamic model of the vehicle was established by using ADAMS/Car software package. Secondly, a fuzzy controller was designed for active suspension system based on genetic algorithm, then programmed by means of Matlab/Simulink. Finally, the co-simulations were carried out based on ADAMS/Car and Matlab/Simulink. The co-simulation model can simulate vehicle dynamic response with the control of ASS under random road and impulse road condition. Through simulation result analysis, it indicates that the co-simulation method is effective and feasible, and the experimental result indicates control method is applicable, too.
  Number of references:  7
  Main heading:  Fuzzy control
  Controlled terms:  Automobile suspensions  -  Controllers  -  Dynamic response  -  Genetic algorithms  -  Genetic engineering  -  Roads and streets  -  Simulators  -  Systems engineering  -  Vehicle suspensions  -  Vehicles
  Uncontrolled terms:  Active suspension  -  Active suspension systems  -  Co-simulation  -  Control methods  -  Design process  -  Fuzzy controllers  -  MATLAB /simulink  -  Multi-body dynamic  -  Road condition  -  Simulation result   -  Simulink  -  Vehicle dynamics
  Classification code:  663.2 Heavy Duty Motor Vehicle Components  -  671 Naval Architecture  -  723 Computer Software, Data Handling and Applications  -  723.4 Artificial Intelligence  -  662.4 Automobile and Smaller Vehicle Components  -  731 Automatic Control Principles and Applications  -  912 Industrial Engineering and Management  -  921 Mathematics  -  961 Systems Science  -  732.1 Control Equipment  -  662.1 Automobiles  -  408.1 Structural Design, General  -  432 Highway Transportation  -  461.8.1 Genetic Engineering  -  601.2 Machine Components  -  406.2 Roads and Streets  -  621 Nuclear Reactors  -  654.1 Rockets and Missiles  -  655.2 Satellites  -  657.1 Solar Energy and Phenomena  -  632.1 Hydraulics
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

129. Accession number:  20092412122954
  Title:  Method to determine target speed ratio of CVT based on driving intention
  Authors:  He, Ren1 ; Ma, Chengguang1 ; Zhang, Yong2 ; Xia, Jingjing1 ; Wu, Haixiao2 
  Author affiliation: 1 School of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China
  2 Automobile Engineering Research Institute, Nanjing Automobile Corporation, Nanjing 210028, China
  Corresponding author:  He, R. (heren1962@163.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  16-19 44
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The method of speed ratio of controlling of metal V-belt continuously variable transmission based on driving intention was suggested using fuzzy mathematics. According to this method, the target speed ratio between economical and drivable mode can be gotten instead of traditional manual selection. The control with the target speed ratio based on the driving intention index of fuzzy control rules can get a good economy and drivability, the bump, shake and flicker of the engine can be avoided. Finally, the controller using the target speed ratio control logic is designed and the effectiveness is validated.
  Number of references:  8
  Main heading:  Variable speed transmissions
  Controlled terms:  Automobile transmissions  -  Fuzzy control  -  Fuzzy sets  -  Mathematical techniques  -  Speed  -  Targets  -  Utility trucks
  Uncontrolled terms:  Continuously variable transmission  -  Continuously variable transmissions  -  Driving intention  -  Fuzzy control rules  -  Fuzzy mathematics  -  Speed ratio  -  Speed ratio control
  Classification code:  931.1 Mechanics  -  921 Mathematics  -  731 Automatic Control Principles and Applications  -  932.1.1 Particle Accelerators  -  723.4 Artificial Intelligence  -  661.2 Automotive Engine Components  -  602.2 Mechanical Transmissions  -  663.1 Heavy Duty Motor Vehicles
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

130. ccession number:  20092412122971
  Title:  Preparation of monodispersed emulsion stabilized by isolated soybean protein based on microchannel emulsification technique
  Authors:  Yin, Lijun1 ; Han, Qinghua1, 2 ; Liu, Haijie1 ; Masayoshi, Saito3 ; Li, Lite1 
  Author affiliation: 1 College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
  2 Chinese Academy of Agricultural Mechanization Sciences, Beijing 100083, China
  3 Japan International Research Center for Agricultural Sciences, Tsukuba 3058686, Japan
  Corresponding author:  Yin, L. (yinljmail@yahoo.mail.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  96-99
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The preparation characteristics of monodispersed oil-in-water (O/W) emulsions with large particles stabilized were investigated by using isolated soybean protein as emulsifiers. Monodispersed emulsion was successfully prepared when pH value ranged from 6 to 8. The particle became significantly bigger and its monodispersity decreased with the decrease of pH value. Emulsions were prepared using isolated soybean protein with a particle size of 43.4 μm, and whose coefficient of variation was 4.3% when pH value of protein solution was 7. When the pH value of protein solution was lower than its isoelectric point, the electronic attractive interaction worked between the negatively charged silicon MC plate and the positively charged protein molecules, resulting in unsuccessful emulsification.
  Number of references:  9
  Main heading:  Emulsification
  Controlled terms:  Microchannels  -  Particle size  -  pH effects
  Uncontrolled terms:  Coefficient of variation  -  Iso-electric points  -  Isolated soybean protein  -  Large particles  -  Microchannel emulsification  -  Microchannel emulsification technique  -  Mono-dispersed  -  Monodispersal  -  Monodispersed emulsions  -  Monodispersity   -  Oil-in-water (o/w) emulsion  -  Particle formation behavior  -  pH value  -  Positively charged proteins  -  Protein solution  -  Soybean proteins
  Classification code:  943.2 Mechanical Variables Measurements  -  942.2 Electric Variables Measurements  -  931.2 Physical Properties of Gases, Liquids and Solids  -  802.3 Chemical Operations  -  801.1 Chemistry, General  -  631 Fluid Flow  -  604 Metal Cutting and Machining
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

131.   Accession number:  20092412122975
  Title:  Variable analysis and structural design on automatic control system of continuous flow grain drying
  Authors:  Wang, Shijun1, 2 ; Mao, Zhihuai1 
  Author affiliation: 1 College of Technology, China Agricultural University, Beijing 100083, China
  2 School of Mechanical Engineering, Shandong University of Technology, Zibo 255049, China
  Corresponding author:  Mao, Z. (maozhh@cau.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  115-118 138
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: Aiming at solving the problem in grain drying, with many uncertain influence factors, that the measurement results hysteresis exists, the selection approach was presented on both the controlled and control variables of the continuous flow grain drying. Based on experimental data, factors affecting grain drying process and multiple factors sensitivity affecting grain outlet moisture content were analyzed. The result shows the major factors influencing the grain outlet moisture content sensitivity are discharge motor rotation speed, heated air temperature and initial moisture content; ambient temperature and initial temperature etc. also have effects on grain outlet moisture content sensitivity to a small extent. A control structure of the automatic control system for continuous flow grain drying was designed, and a restraint approach for the measurement lag was introducing differential block.
  Number of references:  10
  Main heading:  Sensitivity analysis
  Controlled terms:  Architectural design  -  Automation  -  Automobile exhibitions  -  Control  -  Control system analysis  -  Curing  -  Dewatering  -  Moisture  -  Moisture determination  -  Multivariable control systems   -  Process control  -  Reconstruction (structural)  -  Structural analysis
  Uncontrolled terms:  Ambient temperatures  -  Automatic control systems  -  Continuous flows  -  Control structure  -  Control variable  -  Experimental data  -  Grain  -  Grain drying  -  Heated air  -  Influence factors   -  Initial Moisture Content  -  Measurement results  -  Moisture contents  -  Motor rotation  -  Multiple factors  -  Variable analysis
  Classification code:  801.4 Physical Chemistry  -  802.2 Chemical Reactions  -  802.3 Chemical Operations  -  944.2 Moisture Measurements  -  815.1 Polymeric Materials  -  911.4 Marketing  -  921 Mathematics  -  818.3 Rubber and Elastomer Processing  -  732 Control Devices  -  731.1 Control Systems  -  402 Buildings and Towers  -  405.2 Construction Methods  -  408.1 Structural Design, General  -  443.1 Atmospheric Properties  -  662 Automobiles and Smaller Vehicles  -  731 Automatic Control Principles and Applications
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

132. Accession number:  20092412122979
  Title:  Distribution of bacteria and mould in the rice production line
  Authors:  Hu, Jian1 ; Liu, Qiaoyu2 ; Zhao, Siming1 
  Author affiliation: 1 Department of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
  2 Department of Food Science and Technology, Jiangnan University, Wuxi 214000, China
  Corresponding author:  Zhao, S. (zsmjx@mail.hzau.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  135-138
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: Two kinds of rice were studied in order to find out the distribution of bacteria and mould in the summer and autumn rice production line. The results showed that in the process, from raw materials to rice products, the number of bacteria and mould gradually reduced, but the total number of bacteria in each sampling point was higher than that of mould. The difference of the total number of bacterial and mould was very significant for samples from different site (α < 0.0001). The source of rice has a significant impact on the number of bacteria and mould but the season has little effect on it.
  Number of references:  8
  Main heading:  Molds
  Controlled terms:  Bacteriology  -  Grain (agricultural product)
  Uncontrolled terms:  Distribution  -  Mould  -  Production line  -  Rice  -  Rice production  -  Rice products  -  Sampling points  -  Significant impacts
  Classification code:  821.4 Agricultural Products  -  818.4 Rubber Factories and Machinery  -  816.2 Plants and Machinery for Plastics and Other Polymers  -  812.3 Glass  -  801.2 Biochemistry  -  535.2.1 Metal Forming Machines  -  461.9 Biology
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

148. Accession number:  20092412122996
  Title:  Algorithm of local model reference data querying for scattered points
  Authors:  Sun, Dianzhu1 ; Zhu, Changzhi1 ; Li, Yanrui1 ; Tian, Zhongchao1 
  Author affiliation:  1  School of Mechanical Engineering, Shandong University of Technology, Zibo 255091, China
  Corresponding author:  Sun, D. (dianzhus@sdut.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  218-221
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: A new algorithm of local model reference data querying for the scattered points based on the R*-tree was proposed, which contains four steps: first, the spatial index structure of scattered points was constructed based on the R*-tree; second, a hollow sphere was initialized according to the leaf node including current sample point; third, points in hollow sphere were caught with depth-first searching algorithm; forth, the local model reference data querying was realized through dynamic enlarge hollow sphere, and which is proved that it has strong adaptability of data type, improves the accuracy and efficiency of local model reference data querying for scattered points by examples.
  Number of references:  8
  Main heading:  Mathematical models
  Controlled terms:  Reengineering  -  Reverse engineering  -  Spheres
  Uncontrolled terms:  Data querying  -  Data type  -  Depth first  -  Depth-first searching  -  Hollow sphere  -  Local model  -  Sample point  -  Scattered points  -  Searching algorithms  -  Spatial index structure
  Classification code:  631 Fluid Flow  -  723 Computer Software, Data Handling and Applications  -  912.2 Management  -  913.3 Quality Assurance and Control  -  921 Mathematics
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

149. Accession number:  20092412122953
  Title:  LQG/LTR control for electric power steering system
  Authors:  Hu, Aijun1 ; Shi, Guobiao2 ; Lin, Yi2 
  Author affiliation: 1 School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo 454000, China
  2 School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081, China
  Corresponding author:  Hu, A. (ajhu127@yahoo.com.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  12-15 28
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: A mathematical model and state equation of the electric power steering system were established. The compensatory controller was designed by utilizing linear quadratic Gaussian/loop transfer recovery (LQG/LTR) theory aiming at getting rid of the uncertainties and noise of measurement for electric power steering system. The compensatory controller was simulated and the results show that torque undulation and noise of measurement are inhibited well, the system possesses good robustness with the LQG/LTR controller.
  Number of references:  11
  Main heading:  Controllers
  Controlled terms:  Electric power measurement  -  Electricity  -  Engineering exhibitions  -  Equations of state  -  Force measurement  -  Steering  -  Uncertainty analysis
  Uncontrolled terms:  Control strategy  -  Electric power steering  -  Electric power steering system  -  Linear quadratic  -  LQG/LTR control  -  State equations
  Classification code:  943.2 Mechanical Variables Measurements  -  942.2 Electric Variables Measurements  -  931.2 Physical Properties of Gases, Liquids and Solids  -  922.1 Probability Theory  -  921 Mathematics  -  901.2 Education  -  732.1 Control Equipment  -  701.1 Electricity: Basic Concepts and Phenomena  -  671.2 Ship Equipment  -  663.2 Heavy Duty Motor Vehicle Components  -  662.4 Automobile and Smaller Vehicle Components
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

165. Accession number:  20092412122959
  Title:  Synchronously determining philip infiltration parameter and synthesis roughness model of border irrigation
  Authors:  Nie, Weibo1 ; Ma, Xiaoyi1 
  Author affiliation:  1  Key Laboratory for Agricultural Soil and Water Engineering in Arid Area of Ministry of Education, Northwest A and F University, Yangling 712100, China
  Corresponding author:  Ma, X. (xiaoyimasl@yahoo.com.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  39-44
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: Based on the principle of water volume balance, by generalizing the surface water profile and Philip infiltration formula equivalent for Kostiakov model when infiltration parameter α=0.5, the model of synchronously determining Philip infiltration parameters and synthesis roughness according to the advance of border irrigation water was set up. The values of infiltration parameters and roughness were obtained under the different figure coefficient of surface storage σ h, some research results and field experiments testified, by using the software of Matlab to solve the model. Then these parameters were confirmed, the results showed that synchronously determining Philip infiltration parameters and synthesis roughness were reliable. The study indicates that the analytic model has some advantages, such as simple calculation method and solution, higher accuracy.
  Number of references:  18
  Main heading:  Hydraulic models
  Controlled terms:  Geologic models  -  Irrigation  -  MATLAB  -  Parameter estimation  -  Seepage  -  Soil mechanics  -  Soils  -  Water supply
  Uncontrolled terms:  Border irrigation  -  Philip model  -  Soil infiltration parameter  -  Synchronous solving  -  Synthesis roughness
  Classification code:  921 Mathematics  -  821.3 Agricultural Methods  -  731.1 Control Systems  -  723.5 Computer Applications  -  723.1.1 Computer Programming Languages  -  632.1 Hydraulics  -  483.1 Soils and Soil Mechanics  -  481.1 Geology  -  446.1 Water Supply Systems  -  441 Dams and Reservoirs; Hydro Development  -  407 Maritime and Port Structures; Rivers and Other Waterways
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

185. Accession number:  20092412122955
  Title:  Hydraulic system design and dynamic characteristic simulation of torque converter
  Authors:  Wang, Shuhan1 ; Xu, Xiangyang1 ; Peter, Tenberge2 ; Liu, Yanfang1 ; Qu, Wei2 ; Dai, Zhenkun1 
  Author affiliation:  1  School of Transportation Science and Engineering, Beihang University, Beijing 100083, China
  2  Institute for Engineering Design and Powertrain Technologies, Chemnitz University of Technology, Chemnitz 09107, Germany
  Corresponding author:  Wang, S. (buaawsh@hotmail.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  20-23 55
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The new hydraulic system of torque converter was designed. The dimension structure of valves was designed by theoretical calculation. The dynamic simulation model of hydraulic system of torque converter was established. Then the dynamic characteristics of the system were simulated. The simulation results and the test results from the test bench were compared to validate the simulation model. The results show that the simulation model can match the real system very well and the simulation model was validated. The effects of different parameters of the hydraulic system on the characteristics of the system were analyzed, and also the effects of different parameters of the hydraulic system on the characteristics of the system were analyzed.
  Number of references:  9
  Main heading:  Torque converters
  Controlled terms:  Hydraulic equipment  -  Hydraulic torque converters  -  Hydraulics  -  Simulators  -  Torque
  Uncontrolled terms:  Automatic transmission  -  Dynamic characteristics  -  Dynamic simulation models  -  Hydraulic system  -  Real systems  -  Simulation  -  Simulation model  -  Simulation result  -  Test benches  -  Test results   -  Theoretical calculations
  Classification code:  931.2 Physical Properties of Gases, Liquids and Solids  -  671 Naval Architecture  -  662.4 Automobile and Smaller Vehicle Components  -  662.1 Automobiles  -  657.1 Solar Energy and Phenomena  -  655.2 Satellites  -  654.1 Rockets and Missiles  -  632.2 Hydraulic Equipment and Machinery  -  632.1 Hydraulics  -  621 Nuclear Reactors  -  602.1 Mechanical Drives  -  602 Mechanical Drives and Transmissions  -  421 Strength of Building Materials; Mechanical Properties
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

186. Accession number:  20092412122997
  Title:  Synthesis method for planar four-bar linkages given angle displacements of rotating links
  Authors:  Qian, Weixiang1 ; Han, Jianyou1 
  Author affiliation:  1  School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China
  Corresponding author:  Qian, W. (qianwx2003@163.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  222-226
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: An infinite number of linkages can be produced for given four angle-displacements of rotating links. It is difficult for designers to synthesize the best linkage through rapidly and precisely selecting curve points that ensure to satisfy every design condition. To solve this problem, based on mapping theory, an infinite number of mechanism solutions generated by Burmester curves were expressed as finite solution ranges. Through solution analysis, the mechanism property graphs of interest have been computed, including their types, defects, minimum transmission angles, link-length ratios, and so on. After design constraints were considered and imposed, feasible solution ranges could be calculated. To avoid aimlessness in choosing positions and mechanisms, property analysis graphs on the feasible solution ranges were displayed, along with which the optimized solution which satisfies practical design conditions can be synthesized.
  Number of references:  10
  Main heading:  Machine design
  Controlled terms:  Chains  -  End effectors  -  Graph theory  -  Rotation  -  Synthesis (chemical)
  Uncontrolled terms:  Curve points  -  Design condition  -  Design constraints  -  Feasible solution  -  Four-bar linkage  -  Four-bar linkages  -  Infinite numbers  -  Length ratio  -  Mechanism properties  -  Optimized solutions   -  Property analysis  -  Rotating link  -  Solution analysis  -  Synthesis  -  Synthesis method  -  Transmission angle
  Classification code:  921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory  -  802.2 Chemical Reactions  -  731.6 Robot Applications  -  931.1 Mechanics  -  731.5 Robotics  -  601.1 Mechanical Devices  -  601 Mechanical Design  -  602.1 Mechanical Drives
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

204. Accession number:  20092412122982
  Title:  Copperleaf herb detection from cotton field based on color feature
  Authors:  Chen, Shuren1 ; Shen, Baoguo1 ; Mao, Hanping1 ; Yin, Jianjun1 ; Yang, Yunke1 ; Xiao, Weizhong1 
  Author affiliation:  1  Key Laboratory of Modern Agricultural Equipment and Technology, Jiangsu University, Zhenjiang 212013, China
  Corresponding author:  Chen, S. (srchen@ujs.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  149-152
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: Automatic recognition research on distinguishing copperleaf herb from cotton was developed by machine vision based on the different color features. The binary images were obtained by segmenting five feature images, which were the color-difference methods (R-G, R-B, G-B), the super-green's method (2G-R-B), and chromatometry (H) respectively. The chromatometry feature images segmented by Otsu's method could achieve better results by comparing. The double precision matrix as 0, 1 was created with the corresponding binary image, and multiplied by the component plans of R, G and B respectively. The gray images were gained. Their foregrounds were the component plans of R, G and B and their backgrounds were black. The standard deviations of R, G and B in the foregrounds of the cotton and the copperleaf herb images were analyzed. The threshold value for the judgment of the copperleaf herb, which was the margin between R's standard deviation and B's standard deviation less than 5, was determined. The identifiable results show that the recognition rates of the cotton and the copperleaf herb are 71.4% and 92.9% respectively, and the overall recognition rate is 82.1%.
  Number of references:  13
  Main heading:  Cotton
  Controlled terms:  Binary images  -  Color  -  Computer vision  -  Standards  -  Statistics
  Uncontrolled terms:  Automatic recognition  -  Color difference  -  Color feature  -  Color features  -  Double precision  -  Feature images  -  Gray image  -  Machine vision  -  Otsu's method  -  Recognition rates   -  Standard deviation  -  Weed recognition
  Classification code:  922.2 Mathematical Statistics  -  902.2 Codes and Standards  -  821.4 Agricultural Products  -  819.1 Natural Fibers  -  741.2 Vision  -  741.1 Light/Optics  -  731.6 Robot Applications  -  723.5 Computer Applications  -  723.2 Data Processing and Image Processing
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

222. Accession number:  20092412122968
  Title:  Design on MZPH820 single-row potato harvester
  Authors:  Liu, Bao1 ; Zhang, Dongxing1 ; Li, Jing1 
  Author affiliation:  1  College of Engineering, China Agricultural University, Beijing 100083, China
  Corresponding author:  Zhang, D. (zhangdx@cau.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  81-86
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: With the aim to solve the problems of the soil blocking, the high rate of tuber damage, and the bad adaptability to different heights of ridge, MZPH820 potato harvester was designed. The blades of the digging device were designed separating from each other, as well as their supported pipes. The guide rollers of the screening conveyor belt installed on two cantilever plates individually, this brought the transverse through shaft a bit large displacement to the upwards. Both of them made the blades and the soil-cutting discs be the only two kinds of soil-engaging parts, and effectively prevented vines winding and soil blocking. The blades angle adjusting mechanism performed the angle adjustment of the blades and the guide rollers of the screening conveyor belt in the same time, and the adjusting range of the blades angle is 18°-30°. Through adjusting the heights of mound drum and rear wheels harmoniously, the harvester could meet the working demand of various ridge height in range of 100-400 mm and ensure the presetting angle of the blades. This improved greatly the adaptability to different ridge heights. Field experimental results show that in conditions of high ridge wide row, MZPH820 potato harvester performed smoothly in digging, lifting and transporting without any blocking, and potatoes were separated effectively from soil. Its productivity was 0.10 hm2/h, damage rate was 0.3%, and losing rate was 3.9%, all metting the technical requirements.
  Number of references:  15
  Main heading:  Harvesters
  Controlled terms:  Belt conveyors  -  Mining  -  Rollers (machine components)  -  Shaft displacement  -  Soils
  Uncontrolled terms:  Adjusting mechanism  -  Angle adjustments  -  Anti-blocking  -  Cantilever plate  -  Conveyor belts  -  Critical position  -  Damage rate  -  Different heights  -  Guide rollers  -  High rate   -  Large displacements  -  Potato harvester  -  Rear wheels  -  Ridge height adaptability  -  Supported pipes  -  Technical requirement
  Classification code:  483.1 Soils and Soil Mechanics  -  502.1 Mine and Quarry Operations  -  601.2 Machine Components  -  602.1 Mechanical Drives  -  692.1 Conveyors  -  821.1 Agricultural Machinery and Equipment
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

223. Accession number:  20092412122990
  Title:  Microstructure and nanoindentation properties of foreleg's tarsal claw of the oriental mole cricket (Gryllotalpa orientalis Burmeister)
  Authors:  Tong, Jin1 ; Gao, Hang1 ; Sun, Jiyu1 
  Author affiliation:  1  Key Laboratory for Bionics Engineering, Jilin University, Changchun 130025, China
  Corresponding author:  Tong, J. (jtong@jlu.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  190-193
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The surface and the section geometrical structure features of the foreleg's tarsal claw of the oriental mole cricket (Gryllotalpa orientalis Burmeister) were examined by scanning electron microscopy (SEM). It was found that there exists a hollow structure in the tarsal claw and the material of the section displays samdwich structure. The hollow structure of the foreleg's tarsal claw was modeled using the slice method. The hardness and elastic modulus of the foreleg's tarsal claw of the oriental mole cricket (Gryllotalpa orientalis Burmeister) were obtained by nanomechanical test system. The results show that the hardness and elastic modulus of the tergal cuticle material of the tarsal claw of the foreleg were higher than its front cuticle material. It was found through comparison that the hardness of the foreleg's tarsal claw of the oriental mole cricket (Gryllotalpa orientalis Burmeister) is higher than that of the tibia cuticle material of Copris ochus Motschulsky, Geotrupes stercorarius Linnaeus and Holotrichia sichotana Brenske, and higher than the hardness of the hoof wall materials of cattle, sheep and pig as well.
  Number of references:  17
  Main heading:  Materials
  Controlled terms:  Elastic moduli  -  Hardness  -  Molecular structure  -  Nanomechanics  -  Scanning electron microscopy
  Uncontrolled terms:  Claw  -  Geometrical structure  -  Gryllotalpa orientalis Burmeister  -  Hardness and elastic modulus  -  Hollow structure  -  Microscopic structure  -  Mole cricket  -  Nanomechanical tests  -  Oriental mole cricket (Gryllotalpa orientalis Burmeister)  -  SEM   -  Slice method  -  Wall materials
  Classification code:  951 Materials Science  -  933 Solid State Physics  -  931.3 Atomic and Molecular Physics  -  931.2 Physical Properties of Gases, Liquids and Solids  -  801.4 Physical Chemistry  -  761 Nanotechnology  -  741.1 Light/Optics  -  422.2 Test Methods  -  421 Strength of Building Materials; Mechanical Properties
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

224. Accession number:  20092412122969
  Title:  Analysis on flexural properties of the yellow dextrin/straw fibers composites
  Authors:  Zhang, Fu1 ; Fu, Sanling2 ; Tong, Jin3 ; Zhou, Jiang3 ; Zhang, Guoying1 
  Author affiliation: 1 College of Vehicle and Motive Power Engineering, Henan University of Science and Technology, Luoyang 471003, China
  2 College of Science, Henan University of Science and Technology, Luoyang 471003, China
  3 College of Biological and Agricultural Engineering, Jilin University, Changchun 130025, China
  Corresponding author:  Tong, J. (jtong@jlu.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  87-91
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The yellow dextrin/straw fibers composites were prepared using a 150 mm×150 mm steel mold and JFY50 hot-press machine based on the preparation parameters. The experimental results were analyzed by range analysis method. The optimal level of factors, the primary and secondary factors, the best combination of factors and their levels were obtained. The best combination of factors was tested and verified for the hot pressing temperature of 170°C, the hot pressing pressure of 9.8 MPa, the hot pressing time of 20 min and the yellow dextrin content of 30 g. The yellow dextrin/straw fibers composites were prepared based on the best combination of factors. The flexural strength and the flexural elastic modulus of the composite were 15.34 MPa and 2522.78 MPa respectively for the optimal combination situation. The experimental results were also analyzed by variance analysis method. The results show that the hot pressing pressure has an evident effect on the flexural property of the yellow dextrin/straw fibers composites, while the hot pressing time has no obvious effect on the flexural property of the yellow dextrin/straw fibers composites.
  Number of references:  11
  Main heading:  Hot pressing
  Controlled terms:  Bending strength  -  Fibers  -  Pressure effects
  Uncontrolled terms:  Composite  -  Flexural properties  -  Flexural property  -  Flexural strength  -  Hot pressing pressure  -  Hot pressing temperature  -  Optimal combination  -  Optimal level  -  Preparation parameters  -  Press machines   -  Pressing time  -  Range analysis  -  Steel molds  -  Variance analysis methods  -  Yellow dextrin
  Classification code:  819.4 Fiber Products  -  817 Plastics and Other Polymers: Products and Applications  -  812.2 Refractories  -  931.1 Mechanics  -  812.1 Ceramics  -  536.1 Powder Metallurgy Operations  -  421 Strength of Building Materials; Mechanical Properties  -  812 Ceramics, Refractories and Glass
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

225. Accession number:  20092412122966
  Title:  Design and experiment on seed-metering device with special cells for cole seed
  Authors:  Yuan, Wensheng1 ; Wu, Chongyou1 ; Jin, Chengqian1 
  Author affiliation:  1  Engineering and Technology Center for Modern Agricultural Equipment, Nanjing Research Institute for Agriculture Mechanization, Ministry of Agriculture, Nanjing 210014, China
  Corresponding author:  Wu, C. (wucy@nriam.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  72-75
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: One kind of seed-metering device with special cells for cole seed was designed. The configuration and working principle was introduced. The differences between two disposal modes of cells were analyzed. And then, the capability, mainly the uniformity of the seed-metering device was tested in experiments. Based on the request of testing result, the structure of the seed-metering device was changed. Some conclusions were given in the end. The disposal modes of cells are the primary factors which affecting the working uniformity of the seed-metering device. Testing with the combination of optimal parameters, the pass percentage of seeding is 98.3%, the leakage sowing rate is 0.6% and reseeding rate 1.1%. Generally speaking, the seed-metering device with special cells for cole seed is simple in structure and steady in working, its cells are compatible with cole seed.
  Number of references:  9
  Main heading:  Seed
  Controlled terms:  Cell membranes  -  Experiments  -  Pneumatic materials handling equipment
  Uncontrolled terms:  Cole  -  Optimal parameter  -  Primary factors  -  Seed-metering device  -  Testing results  -  Working principles
  Classification code:  461.2 Biological Materials and Tissue Engineering  -  632.4 Pneumatic Equipment and Machinery  -  691.1 Materials Handling Equipment  -  821.4 Agricultural Products  -  901.3 Engineering Research
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

226. Accession number:  20092412122988
  Title: Intelligent measure-control system design based on sectional-control strategy in greenhouse
  Authors:  Wang, Fengyun1 ; Zhao, Yimin2 ; Zhang, Xiaoyan1 ; Feng, Wenjie1 
  Author affiliation: 1 Information Engineering Technological Research Center, Shandong Academy of Agricultural Sciences, Ji'nan 250100, China
  2 Quality Inspection Department, Shandong Shengli Co. Ltd., Ji'nan 250101, China
  Corresponding author:  Wang, F. (wangfy@saas.ac.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  178-181
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: An intelligent platform based on RS485 bus was created. It takes the sectional-control theory which combines the PID algorithm with fuzzy control theory as the strategy and integrates the crop growth and cultivation expert system. The system real-timely measures the environment factors in greenhouse and analyzes them to make decision and control the output devices so as to create the optimal grow environmental conditions in greenhouse. The application shows that the sectional-control algorithm makes the output trace the set value correctly and the distributed and unit module structure make the maintenance easier and lower the running cost.
  Number of references:  7
  Main heading:  Fuzzy control
  Controlled terms:  Algorithms  -  Expert systems  -  Greenhouses  -  Proportional control systems  -  System theory
  Uncontrolled terms:  Control algorithms  -  Control strategies  -  Control system designs  -  Crop growth  -  Environmental conditions  -  Intelligent measure-control  -  Intelligent platform  -  Module structure  -  Output devices  -  PID algorithm   -  RS-485 bus  -  Running cost  -  Sectional control
  Classification code:  921 Mathematics  -  912.3 Operations Research  -  821.6 Farm Buildings and Other Structures  -  731.4 System Stability  -  731.1 Control Systems  -  961 Systems Science  -  731 Automatic Control Principles and Applications  -  723.4 Artificial Intelligence  -  723 Computer Software, Data Handling and Applications  -  461.1 Biomedical Engineering  -  402.1 Industrial and Agricultural Buildings  -  723.4.1 Expert Systems
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

236. Accession number:  20092412122986
  Title:  Modeling greenhouse plant canopy temperature in north china during winter
  Authors:  He, Fen1 ; Ma, Chengwei1 
  Author affiliation:  1  Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, China Agricultural University, Beijing 100083, China
  Corresponding author:  Ma, C. (macwbs@cau.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  169-172 198
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: According to the balance of plant canopy energy, a mathematical model of simulating greenhouse plant canopy temperature that has relations with greenhouse inside and outside climate and structure was developed. The experiment was carried out to validate the correctness of the model in the Venlo-type greenhouse in North China during winter. The simulated canopy temperature agreed well with the measured data. The determination coefficient and the root mean square error between the measured and simulated canopy temperature were 0.7975 and 1.3°C, respectively. Then a BP neural network model of canopy temperature was built, the determination coefficient and the root mean square error were 0.7835 and 0.6°C. Based on the neural network model, the influencing factors sensitivity of canopy temperature was analyzed. The inside temperature is the most important factor, and the next ones are in order of the transpiration rate, solar radiation and inside relative humidity.
  Number of references:  10
  Main heading:  Mathematical models
  Controlled terms:  Atmospheric humidity  -  Block codes  -  Computer simulation  -  Greenhouses  -  Mean square error  -  Neural networks  -  Solar energy  -  Sun
  Uncontrolled terms:  Balance of plant  -  BP neural network model  -  Canopy temperature  -  Determination coefficients  -  Influencing factor  -  Inside temperature  -  Measured data  -  Neural network model  -  North China  -  Plant canopies   -  Relative humidities  -  Root mean square errors  -  Transpiration rates
  Classification code:  922.2 Mathematical Statistics  -  921 Mathematics  -  821.6 Farm Buildings and Other Structures  -  731.1 Control Systems  -  723.5 Computer Applications  -  723.4 Artificial Intelligence  -  723.1 Computer Programming  -  657.2 Extraterrestrial Physics and Stellar Phenomena  -  657.1 Solar Energy and Phenomena  -  615.2 Solar Power  -  461.1 Biomedical Engineering  -  443.1 Atmospheric Properties  -  402.1 Industrial and Agricultural Buildings
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

237. Accession number:  20092412122995
  Title:  Changing duty ratio PWM control of direct-drive air compressor
  Authors:  Zhong, Meipeng1, 2 ; Zheng, Shuiying3 ; Pan, Xiaohong1 
  Author affiliation: 1 Institute of Manufacture Engineering, Zhejiang University, Hangzhou 310027, China
  2 College of Mechanical and Electrical Engineering, Jiaxing College, Jiaxing 314001, China
  3 Institute of Chemical Machinery, Zhejiang University, Hangzhou 310027, China
  Corresponding author:  Zheng, S. (zhengsy@zju.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  213-217
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: The direct-drive air compressor drove by permanent magnet brushless D. C. motor (BLDCM) was designed and manufactured. Volume and its weight of direct-drive air compressor drove by permanent magnet BLDCM are little but its efficiency is high. To improve air compressor's efficiency, BLDCM is used to drive the air compressor. The aim of this paper is to reduce the cost and enhance the efficiency of air compressor, thus based on the direct torque control method, a simple open loop control method to change duty ratio according to the resistant torque was provided. Duty ratios of control cycle beat are different because of the different air compressor load. The duty ratio increase and decrease with the change of air compressor. The system was simulated by Simulink. The simulation results show that the fluctuation of compressor's rotating speed is small using this control method, and it has robustness.
  Number of references:  7
  Main heading:  Compressors
  Controlled terms:  Magnetic devices  -  Modulation  -  Permanent magnets  -  Pulse width modulation  -  Torque control
  Uncontrolled terms:  Air compressor  -  BLDCM  -  Changing duty ratio  -  Control cycles  -  Control methods  -  Direct drive  -  Direct Torque Control  -  Direct-drive air compressor  -  Duty ratios  -  Open loop control   -  PWM control  -  Resistant torques  -  Rotating speed  -  Simulation result  -  Simulink
  Classification code:  731.3 Specific Variables Control  -  718 Telephone Systems and Related Technologies; Line Communications  -  717 Optical Communication  -  716 Telecommunication; Radar, Radio and Television  -  714 Electronic Components and Tubes  -  708.4 Magnetic Materials  -  704.1 Electric Components  -  704 Electric Components and Equipment  -  618.1 Compressors
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

267. Accession number:  20092412122961
  Title:  Soil cone penetrometer with ball screw transmission
  Authors:  Meng, Fanjia1 ; Ma, Daokun1 ; Sun, Yurui1 
  Author affiliation:  1  Research Center for Precision Agriculture, China Agricultural University, Beijing 100083, China
  Corresponding author:  Sun, Y. (pal@cau.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  52-55
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: A motor-operated penetrometer with novel structure and constant-velocity (30 mm/s) was developed. The major innovation was to employ ball screw as transmission component of penetration force so that the higher control accuracy and operating efficiency could be simultaneously obtained. Moreover, a microcomputer-based controller associated with GPS and PDA was designed to coordinate the soil penetration resistance and the depth measurements at real-time and to monitor the operating status of the penetrometer. By using of the available hardware and software provided by PDA, the data capacity and the processing ability of field information was significantly improved.
  Number of references:  7
  Main heading:  Soil surveys
  Controlled terms:  Compaction  -  Personal digital assistants  -  Soils  -  Spheres
  Uncontrolled terms:  Ball screw  -  Ball screws  -  Cone index  -  Control accuracy  -  Data capacity  -  Depth measurements  -  Hardware and software  -  Measurement device  -  Novel structures  -  Operating efficiency   -  Penetration forces  -  Processing ability  -  Soil cone penetrometer  -  Soil penetration resistance  -  Transmission components
  Classification code:  406.2 Roads and Streets  -  483.1 Soils and Soil Mechanics  -  536.1 Powder Metallurgy Operations  -  631 Fluid Flow  -  722 Computer Systems and Equipment  -  802.3 Chemical Operations
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

283. Accession number:  20092412122951
  Title:  4WD vehicle DYC based on tire longitudinal forces optimization distribution
  Authors:  Zou, Guangcai1 ; Luo, Yugong2 ; Li, Keqiang2 
  Author affiliation: 1 Beijing Automotive Technology Center, Beijing 100021, China
  2 State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China
  Corresponding author:  Zou, G. (zouguangcai@gmail.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  1-6
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: A new 4WD vehicle DYC system based on the tire longitudinal forces optimization distribution was proposed to combine the advantages of DYC and the independent four-wheel-drive chassis. The modified 2DOF vehicle model was utilized to obtain the DYC target for vehicle stability. The "feedforward feedback" DYC controller was designed with the optimal dynamical sliding mode. The tire longitudinal forces optimization distribution mode was established with the stability index combining HSRI tire model to increase the vehicle-road grip margin. The index was constraining calculated to obtain tire forces distribution results. The simulation result shows that the remaining part of the vehicle-road adhesion is increased by the optimization distribution under DYC, which means the vehicle stability potential is improved than using the general distribution method, i.e. DYC is enhanced further.
  Number of references:  14
  Main heading:  Vehicles
  Controlled terms:  Automobile frames  -  Optimization  -  Roads and streets  -  System stability  -  Tires  -  Vibration control  -  Wheels
  Uncontrolled terms:  Direct yaw moment control  -  Distribution modes  -  Feed-Forward  -  Four wheel independent drive  -  Four-wheel drives  -  Longitudinal force  -  Simulation result  -  Sliding modes  -  Stability indices  -  System-based   -  Tire forces  -  Tire models  -  Vehicle model  -  Vehicle stability
  Classification code:  921.5 Optimization Techniques  -  818.5 Rubber Products  -  731.4 System Stability  -  731.3 Specific Variables Control  -  961 Systems Science  -  663.2 Heavy Duty Motor Vehicle Components  -  601.2 Machine Components  -  432 Highway Transportation  -  406.2 Roads and Streets  -  662.4 Automobile and Smaller Vehicle Components
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

284. Accession number:  20092412122985
  Title:  Review on environmental control and simulation models for greenhouses
  Authors:  Ding, Weimin1 ; Wang, Xiaochan1 ; Li, Yinian1 ; Wang, Jian1 
  Author affiliation:  1  College of Engineering, Nanjing Agricultural University, Nanjing 210031, China
  Corresponding author:  Ding, W. (wmding@njau.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  162-168
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: From the view of practice and application, the situation of research and development for environmental control and simulation models of greenhouse were described. The multiple processor distributed control systems are widely used for greenhouse environment, and the single chip processors with the universal structure and low price are mainly used as the controller of the systems. The IPC (industrial personal computer) can also be used as the controller but its price is relatively expensive. The intellectualization of the control systems and the signal wireless transmission are significant trend for the environmental control of the greenhouse, and the wireless transmission is more suitable for greenhouse characteristics. It should be considered to integrate environmental control with crop growth models and greenhouse production economy (benefits), but it's difficult to do at present. The simulation models can help to know better about the effect factors on greenhouse environment. It's not necessary to over emphasize the precision of rare level control system.
  Number of references:  54
  Main heading:  Controllers
  Controlled terms:  Control  -  Control system analysis  -  Distributed parameter control systems  -  Environmental engineering  -  Greenhouse effect  -  Greenhouses  -  Leveling (machinery)  -  Mathematical models  -  Personal computers  -  Simulators
  Uncontrolled terms:  Crop growth model  -  Distributed Control System  -  Effect factors  -  Environmental control  -  Greenhouse environment  -  Greenhouse production  -  Industrial personal computers  -  Multiple processors  -  Research and development  -  Simulation   -  Simulation model  -  Single chip processors  -  Universal structures  -  Wireless transmissions
  Classification code:  921 Mathematics  -  662.1 Automobiles  -  671 Naval Architecture  -  722.4 Digital Computers and Systems  -  731 Automatic Control Principles and Applications  -  731.1 Control Systems  -  732 Control Devices  -  732.1 Control Equipment  -  821.6 Farm Buildings and Other Structures  -  657.1 Solar Energy and Phenomena  -  402.1 Industrial and Agricultural Buildings  -  443.1 Atmospheric Properties  -  451 Air Pollution  -  655.2 Satellites  -  454 Environmental Engineering  -  621 Nuclear Reactors  -  654.1 Rockets and Missiles  -  603.1 Machine Tools, General
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

285. Accession number:  20092412122965
  Title:  Soil moisture measurement based on fuzzy control and its experimental verification
  Authors:  Gao, Chi1, 2 ; Yan, Qinlao1 ; Xue, Shaoping1 ; Shan, Laicheng3 
  Author affiliation: 1 College of Mechanical and Electronic Engineering, Northwest A and F University, Yangling 712100, China
  2 Mechanical and Electrical Department, Laiwu Vocational and Technical College, Laiwu 271100, China
  3 Shandong Laiwu Lichuang Company, Laiwu 271100, China
  Corresponding author:  Yan, Q. (yanqinlao@yahoo.com.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  68-71
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: In order to improve the precision of soil moisture testing under natural causes and nonlinear system, the fuzzy controller and signal pickup assembly based on DSP (TMS320VC5402) were constructed by neural networks technique, and the signal processing and optimized method were raised. The BP learning algorithm for fuzzy control rule and amending rule were determined, moreover, the experiment and verification were done with the system. The results of experiment show the errors of soil moisture test by neural networks technique are 0.13%-2.12% lower than by routine method.
  Number of references:  7
  Main heading:  Fuzzy control
  Controlled terms:  Backpropagation algorithms  -  Education  -  Fuzzy neural networks  -  Groundwater  -  Learning algorithms  -  Moisture control  -  Moisture determination  -  Nonlinear systems  -  Permittivity  -  Signal processing   -  Soil moisture  -  Soil surveys  -  Soil testing
  Uncontrolled terms:  BP learning algorithms  -  Experimental verification  -  Fuzzy control rules  -  Fuzzy controllers  -  Routine method  -  Soil moisture measurement
  Classification code:  731 Automatic Control Principles and Applications  -  731.1 Control Systems  -  731.3 Specific Variables Control  -  901.2 Education  -  921 Mathematics  -  944.2 Moisture Measurements  -  961 Systems Science  -  723.4 Artificial Intelligence  -  406.2 Roads and Streets  -  444.2 Groundwater  -  483.1 Soils and Soil Mechanics  -  701 Electricity and Magnetism  -  708.1 Dielectric Materials  -  716.1 Information Theory and Signal Processing  -  723 Computer Software, Data Handling and Applications
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

286. Accession number:  20092412122981
  Title:  Measurement of maize seedling morphological traits based on binocular stereovision
  Authors:  Wang, Chuanyu1 ; Zhao, Ming2 ; Yan, Jianhe1 
  Author affiliation: 1 College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
  2 Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
  Corresponding author:  Zhao, M. (zhaomingcau@163.net) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  5
  Issue date:  May 2009
  Publication year:  2009
  Pages:  145-148 144
  Language:  Chinese
  ISSN:  10001298
  CODEN:  NUYCA3
  Document type:  Journal article (JA)
  Publisher:  Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract: Field-growing maize seedling was transplanted onto measuring board with soil reserved. Images of plant were captured with calibrated binocular stereovision system. The binary images were extracted and segmented into leaves and stems according to phyllotaxis. An algorithm of DouglasPeucker polygonal approximation of leaf contour was applied to find matching points of two corresponding images. Projecting 3-D points of maize seedling onto plant plane and plant horizontal plane, fitting and interpolating the projected points to generate leaf curve so that the leaf length, leaf insertion height, azimuth and inclination angle could be calculated.
  Number of references:  9
  Main heading:  Stereo vision
  Controlled terms:  Approximation algorithms  -  Binoculars  -  Computer vision  -  Curve fitting  -  Graph theory  -  Image processing  -  Optical instruments  -  Three dimensional
  Uncontrolled terms:  Binocular stereovision  -  Horizontal planes  -  Inclination angles  -  Leaf length  -  Maize  -  Maize seedlings  -  Matching points  -  Morphological characteristics  -  Morphological traits  -  Polygonal approximations   -  Projected points
  Classification code:  922.2 Mathematical Statistics  -  921.6 Numerical Methods  -  921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory  -  921 Mathematics  -  902.1 Engineering Graphics  -  941.3 Optical Instruments  -  741.3 Optical Devices and Systems  -  741 Light, Optics and Optical Devices  -  731.6 Robot Applications  -  723.5 Computer Applications  -  723.2 Data Processing and Image Processing  -  741.2 Vision
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.