2009年第40卷第3期共收录49篇

8. Accession number:  20091512029382
  Title: Discrete element method simulation of seeds motion in vibrated bed of precision vacuum seeder
  Authors: Li, Yaoming1 ; Zhao, Zhan1 ; Chen, Jin2 ; Xu, Lizhang1
  Author affiliation: 1 Jiangsu Provincial Key Laboratory of Modern Agricultural Equipment and Technology, Jiangsu University, Zhenjiang 212013, China
                 2 School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China
  Corresponding author: Li, Y. (ymli@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: 3
  Issue date: March 2009
  Publication year: 2009
  Pages: 56-59 76
  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 Matlab program based on the discrete element method was developed to simulate the seeds motion in a 3-D vibrated seeder bed. The mechanical interactions force between seeds and also between seeds and the bed were modeled by linear springs, dash-pots and friction sliders. The cubic expansion coefficient, H, was calculated to describe the discrete distribution level of seeds. The simulation results show that, the seeds are separated effectively while the bed vibrated with high frequency and small amplitude, H increases with the increasing vibration strength, kv, and decreases with the seeds initial thickness, hs. The influences of friction coefficient and recovery coefficient on H were analyzed. The ideal active state was obtained at hs&asyum;3.8 and kv=5.65. The experimental results also show that the seeds pickup ratio is more than 98%.
  Number of references: 13
  Main heading: Seed
  Controlled terms: Computer simulation  -  Friction  -  MATLAB
  Uncontrolled terms:  Active state  -  Cubic expansion coefficients  -  Discrete distributions  -  Discrete element method  -  Discrete element method simulations  -  Friction coefficients  -  High frequencies  -  Initial thickness  -  Linear springs  -  MATLAB programs   -  Mechanical interactions  -  Numerical simulation  -  Performance tests  -  Precision seeder  -  Recovery coefficients  -  Simulation results  -  Small amplitudes  -  Vibrated beds  -  Vibration strengths
  Classification code: 723.1.1 Computer Programming Languages  -  723.5 Computer Applications  -  821.4 Agricultural Products  -  921 Mathematics  -  931.1 Mechanics
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.
 
9. Accession number: 20091512029407
  Title: Nondestructive testing of eggshell based on rough sets and support vector machine
  Authors: He, Lihong1 ; Liu, Jin'gang2 ; Wen, Youxian3 
  Author affiliation: 1  Department of Mechanical Engineering, Hu'nan Institute of Engineering, Xiangtan 411101, China
                 2 College of Mechanical Engineering, Xiangtan University, Xiangtan 411105, China
 3 College of Engineering and Technology, Huazhong Agricultural University, Wuhan 430070, China
  Corresponding author: He, L. (helihong0924@126.com) 
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title: Nongye Jixie Xuebao
  Volume: 40
  Issue: 3
  Issue date: March 2009
  Publication year: 2009
  Pages: 167-171
  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 of low accuracy existing in the nondestructive testing system for eggshell, a new hybrid scheme of rough sets and support vector machine for classifier designing was proposed. First, redundant characteristic parameters were reduced based on the rough sets theory. During reducing process, the characteristic parameters were quantified by fuzzy C means clustering algorithm, and the condition attributes were reduced via heuristic search according to their own importance. And then, the classifier was trained by support vector machine based on the reduction result. During training process, the classifier model parameters were optimized by cross validation. The experiments show that the accordance rate of the proposed method can reach 94.6%, which has great engineering application perspective.
  Number of references: 8
  Main heading: Support vector machines
 
  Controlled terms: Classifiers  -  Clustering algorithms  -  Elastic constants  -  Fuzzy clustering  -  Fuzzy sets  -  Heuristic algorithms  -  Image retrieval  -  Multilayer neural networks  -  Nondestructive examination  -  Rough set theory   -  Vectors
  Uncontrolled terms: Characteristic parameters  -  Classifier models  -  Condition attributes  -  Cross validations  -  Eggshell  -  Engineering applications  -  Fuzzy c-means clustering algorithms  -  Heuristic searches  -  Hybrid schemes  -  Nondestructive testing   -  Reducing process  -  Rough set  -  Rough sets theories  -  Support vector machine  -  Training process
  Classification code: 723.4 Artificial Intelligence  -  741 Light, Optics and Optical Devices  -  802.1 Chemical Plants and Equipment  -  931.2 Physical Properties of Gases, Liquids and Solids  -  903.1 Information Sources and Analysis  -  921.1 Algebra  -  921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory  -  921 Mathematics  -  723.2 Data Processing and Image Processing  -  723.1 Computer Programming  -  421 Strength of Building Materials; Mechanical Properties  -  422.2 Test Methods  -  423.2 Test Methods  -  461.1 Biomedical Engineering  -  721 Computer Circuits and Logic Elements  -  723 Computer Software, Data Handling and Applications
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.
 
10. Accession number:  20091512029405
  Title: Toward image segmentation of foreign fibers in lint
  Authors: Yang, Wenzhu1, 2 ; Li, Daoliang1 ; Wei, Xinhua3 ; Kang, Yuguo4 ; Li, Futang4
  Author affiliation: 1 College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China
                  2 College of Mathematics and Computer, Hebei University, Baoding 071002, China
                  3 Provincial Key Laboratory Agricultural Equipment and Technology, Jiangsu University, Zhenjiang 212013, China
　　　　　　　　　4 China Cotton Machinery and Equipment Co. Ltd., Beijing 100089, China
  Corresponding author: Li, D. (dliangl@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: 3
  Issue date: March 2009
  Publication year: 2009
  Pages: 156-160 171
  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 computer-vision-based systems for detecting foreign fibers, an efficient segmentation method is vital for improving the speed and precision of detection. An image enhancement model was presented based on histogram analysis, an improved Otsu's method was proposed for segmenting gray images of foreign fibers, and the segmentation results were analyzed in detail. The results indicate that all histograms of gray images of foreign fibers are of single peak, and the contrast between object and background can be remarkably enhanced by the enhancement model presented. The Otsu's method is effective for images of sheet foreign fibers, but does not work well for images of wirelike or villiform fibers, as some background pixels with gray values closed to the threshold are easily segmented as object pixels by mistake. But after the images were enhanced, the satisfactory segmentation results were achieved. The improved Otsu's method reduced the searching range for calculating optimal threshold from 0-255 to 150-230. The calculating speed in this stage was improved more than twice.
  Number of references: 11
  Main heading: Image segmentation
  Controlled terms: Cotton-Digital image storage - Fibers - Image enhancement - Pixels
  Uncontrolled terms: Background pixels  -  Computer-vision  -  Foreign fibers  -  Gray images  -  Gray values  -  Histogram analysis  -  Improved Otsu's method  -  Optimal thresholds  -  Segmentation methods  -  Segmentation results   -  Single peaks
  Classification code: 821.4 Agricultural Products  -  741.3 Optical Devices and Systems  -  742.2 Photographic Equipment  -  812 Ceramics, Refractories and Glass  -  817 Plastics and Other Polymers: Products and Applications  -  819.1 Natural Fibers  -  819.4 Fiber Products  -  741.1 Light/Optics  -  723.5 Computer Applications  -  723.2 Data Processing and Image Processing  -  722.4 Digital Computers and Systems  -  722.2 Computer Peripheral Equipment  -  722.1 Data Storage, Equipment and Techniques  -  741 Light, Optics and Optical Devices
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.
 
11. Accession number: 20091512029389
  Title: Design and simulation of compounding crop divider with finger rotor
  Authors: Cong, Hongbin1 ; Yang, Qiyong1 ; Sun, Guibin1 ; Li, Ruxin1
  Author affiliation: 1 College of Mechanical and Electronic Engineering, Shandong Agricultural University, Taian 271018, China
  Corresponding author: Li, R. (rxli@sdau.edu.cn)
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title: Nongye Jixie Xuebao
  Volume: 40
  Issue: 3
  Issue date: March 2009
  Publication year: 2009
  Pages: 85-89
  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 key technology of no-row corn harvester is how to make corn stems being fed effectively. Through analyzing the structure of existing no-row corn harvesters, a new improved project was advanced on the basis of feed-in mechanism with finger rotor, stem-rotor and ear-rotor were installed independently, and the ear-rotor was closed with sweep auger. The stem-rods were straight and the ear-rods were bended, their eccentricity orientations were opposite when they were installed, but they turned in the same direction. As the ear-rotor was moved backwards, the effectiveness of ears delivery was improved, and interference between the stem-rods and the ear-rods was avoided. Change of the stem-rods eccentricity mounting orientation strengthened their ability to transport stems, and increased effectively the range of feeding stem, thereby the adaptability of the harvester to different corn row was improved. By designing the stem motion simulation algorithm, virtual test of the stems motion was completed with the Matlab software, and the movement law of the stems was discussed. Equation of the ear-rod was established, these provided a theoretical basis for the development of prototype.
  Number of references: 6
  Main heading: Harvesters
  Controlled terms: Computer software  -  Crops  -  Equations of motion  -  MATLAB
  Uncontrolled terms: Corn harvester  -  Design and simulations  -  Key technologies  -  Matlab- softwares  -  Motion simulation algorithms  -  Simulation  -  Theoretical basis  -  Virtual tests
  Classification code: 921.2 Calculus  -  921 Mathematics  -  821.4 Agricultural Products  -  931.1 Mechanics  -  821.1 Agricultural Machinery and Equipment  -  723.1.1 Computer Programming Languages  -  723 Computer Software, Data Handling and Applications  -  723.5 Computer Applications
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.
 
12. Accession number: 20091512029395
  Title: Positive and reverse exergy balance analysis of the new type II biomass briquette hot-water boiler
  Authors: Wang, Xiaodong1 ; Wu, Shaojing1 ; Liu, Shengyong1 ; Gui, Xiangzhen2 ; Li, Yin3
  Author affiliation: 1 Key Laboratory of Renewable Energy, Ministry of Agriculture, He'nan Agricultural University, Zhengzhou 450002, China
　　　　　　　　　2  Zhengzhou District Heating Corporation, Zhengzhou 450005, China
                  3 Engineering Institute, Huanghe Science and Technology College, Zhengzhou 450052, China
  Corresponding author: Liu, S. (liushy@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: 3
  Issue date: March 2009
  Publication year: 2009
  Pages: 112-116 102
  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: Exergy analysis is a kind of scientific and comprehensive energy analysis method. By making positive and negative thermal balance analysis on new type II biomass briquette hot-water boiler, we got the conclusion that the largest exergy loss lies on irreversible burning which reaches 69.93%, and irreversible heat transfer exergy losses follows, reaches 14.5%, then the calculation results were analyzed using the concept of avoidable exergy loss, the results show that the position of combustion, the position of heat transfer, the position of smoke and the practical efficiency of the exergy are respectively 42.6%, 86.2%, and 92.1% after adopting the concept of avoidable exergy loss.
  Number of references: 12
  Main heading: Exergy
  Controlled terms: Biological materials  -  Biomass  -  Boilers  -  Briquets  -  Briquetting  -  Energy management  -  Geothermal energy  -  Heat exchangers  -  Heat transfer  -  Water analysis
  Uncontrolled terms: Comprehensive energies  -  Exergy analysis  -  Exergy balances  -  Exergy efficiency  -  Exergy loss  -  Hot-water boiler  -  Irreversible heats  -  Thermal balances  -  Type II
  Classification code: 616.1 Heat Exchange Equipment and Components  -  641.1 Thermodynamics  -  641.2 Heat Transfer  -  801 Chemistry  -  802.3 Chemical Operations  -  805.1.1 Biochemical Engineering  -  821.5 Agricultural Wastes  -  615.1 Geothermal Energy  -  445.2 Water Analysis  -  461.2 Biological Materials and Tissue Engineering  -  481.3.1 Geothermal Phenomena  -  524 Solid Fuels  -  525 Energy Management and Conversion  -  525.1 Energy Resources and Renewable Energy Issues  -  614 Steam Power Plants
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

24. Accession number: 20091512029399
  Title: Effects of microwave vacuum drying technology on sensory quality of apple slices
  Authors: Han, Qinghua1, 2 ; Li, Shujun1 ; Mao, Zhihuai2 ; Wu, Haihua1 ; Yang, Bingnan1 ; Ma, Jiwei1 
  Author affiliation: 1 Chinese Academy of Agricultural Mechanization Sciences, Beijing 100083, China
                 2 College of Engineering, China Agricultural University, Beijing 100083, China
  Corresponding author: Han, Q. (hanqinghua1971@sina.com)
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title: Nongye Jixie Xuebao
  Volume: 40
  Issue: 3
  Issue date: March 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: Taking the main factors of apple processing by microwave vacuum drying into account, such as microwave power, vacuum level and initial moisture content, the predicted second-order regression model of the sensory quality of microwave vacuum dried apple slices was obtained according to the experimental data by using orthogonal rotatable central composite design, and effects of these variables and their interaction on the product quality were analyzed by response surface method. To acquire higher quality of product, the ideal processing range of microwave power, vacuum level and initial moisture content were determined as 10.6-12.7 W/g, 0.083-0.094 MPa and 0.6-0.9 respectively. The optimal drying condition was found at microwave power 11.7 W/g, vacuum level 0.089 MPa and initial moisture content 0.75, with the maximum predicted sensory quality mark as 9.51, and the experimental validated mark as 9.42. The results prove that the regression model agrees well with the microwave vacuum drying process.
  Number of references: 7
  Main heading: Drying
  Controlled terms: Curing  -  Dewatering  -  Microwave generation  -  Microwave power transmission  -  Moisture control  -  Moisture determination  -  Quality control  -  Regression analysis  -  Surface properties  -  Vacuum   -  Vacuum technology
  Uncontrolled terms: Apple slices  -  Microwave vacuum drying  -  Orthogonal rotatable central composite design  -  Response surface method  -  Sensory quality
  Classification code: 802.3 Chemical Operations  -  815.1 Polymeric Materials  -  818.3 Rubber and Elastomer Processing  -  951 Materials Science  -  913.3 Quality Assurance and Control  -  931.2 Physical Properties of Gases, Liquids and Solids  -  944.2 Moisture Measurements  -  922.2 Mathematical Statistics  -  802.2 Chemical Reactions  -  731.3 Specific Variables Control  -  633 Vacuum Technology  -  642.1 Process Heating  -  706.1.1 Electric Power Transmission  -  713.2 Oscillators  -  714.1 Electron Tubes  -  714.2 Semiconductor Devices and Integrated Circuits
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.
 
36. Accession number: 20091512029386
  Title: Design of row-followed no-till wheat and maize planter under controlled traffic farming system
  Authors: Chen, Hao1 ; Huang, Hu1 ; Yang, Yali1 ; Li, Hongwen2 
  Author affiliation: 1 College of Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
                  2 College of Engineering, China Agricultural University, Beijing 100083, China
  Corresponding author: Li, H. (lhwen@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: 3
  Issue date: March 2009
  Publication year: 2009
  Pages: 72-76
  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 solve the problems of blocking and lacking outfitting machinery in wheat no-till planting in corn residue under controlled traffic conservation tillage farming system in annual two-crop region of northern China, the 2BMDF-2/7 row-followed no-till wheat and maize planter for controlled traffic system was designed. Combing of row-followed operation to sheer off corn stubble by using wheel tracks and power driven chopping anti-blocking mechanism, it can be used to solve the problem of no-till wheat planting in corn residue. Field test shows that the planter has a good performance of trafficability with the ratio of sheering off corn stubble 85% and anti-blocking capacity, thus to finish wheat and maize no-till planting. The variation coefficient of seed depth was 19.4% and 23.4% for wheat and maize, respectively. This machine can implement both wheat and maize no-till planting. Therefore, this planter can be a good solution to current problems in no-till planting in annual two-crop region of northern China.
  Number of references: 12
  Main heading: Grain (agricultural product)
  Controlled terms: Agricultural machinery  -  Crops  -  Soil conservation
  Uncontrolled terms: Anti-blocking  -  Blocking capacities  -  Blocking mechanisms  -  Conservation tillages  -  Corn residues  -  Farming systems  -  Field tests  -  No-till wheat and maize planting  -  Northern chinas  -  Row-followed operation by controlled traffic   -  Trafficability  -  Variation coefficients  -  Wheel tracks
  Classification code: 483.1 Soils and Soil Mechanics  -  821.1 Agricultural Machinery and Equipment  -  821.3 Agricultural Methods  -  821.4 Agricultural Products
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

37. Accession number: 20091512029372
  Title: Design and test of vehicle single outstretch pole MRD
  Authors:  Chen, Jieping1, 2 ; Chen, Wuwei1 ; Zhu, Hui1 ; Zhu, Maofei1 
  Author affiliation: 1 School of Mechanical and Automotive Engineering, Hefei University of Technology, Hefei 230009, China
                 2 Faculty of Eng., Anhui Science and Technology University, Fengyang 233100, China
  Corresponding author: Chen, W. (cww@mail.hf.ah.cn)
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title: Nongye Jixie Xuebao
  Volume: 40
  Issue: 3
  Issue date: March 2009
  Publication year: 2009
  Pages: 5-10
  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: Combined with the requirement of vehicles damper, two type of dampers were designed and manufactured by analyzing the two working pattern of MRF. The comparison between simulation and the experiment result shows that the difference of damp force is small in low speed and large in high speed. It is obvious that the performance of the mixed model is more excellent than the flow model. It has higher control rate and can reduce the jam of the damp hole in practice. It is certified that the magnetorheological fluid damper (MRD) model and the design idea and methods are correct and accord with the requirement of engineering.
  Number of references: 14
  Main heading: Damping
  Controlled terms: Design  -  Magnetos  -  Vehicles
  Uncontrolled terms: Control rates  -  Damper  -  Design ideas  -  Flow models  -  High-speed  -  Low speed  -  Magneto-rheological fluid dampers  -  Magnetorheological-fluid  -  Mixed models  -  Test   -  Working patterns
  Classification code: 408 Structural Design  -  432 Highway Transportation  -  705.2 Electric Generators  -  708.4 Magnetic Materials  -  902.1 Engineering Graphics  -  931.1 Mechanics
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

50. Accession number:  20091512029375
  Title: Dynamic scheduling algorithm for local interconnect network and its application
  Authors: Zhang, Xinfeng1 ; Yang, Diange1 ; Lu, Liang1 ; Xue, Wen1 ; Lian, Xiaomin1 
  Author affiliation: 1 State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China
  Corresponding author: Zhang, X. (Zhangxinfeng99@mails.tsinghua.edu.cn) 
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title: Nongye Jixie Xuebao
  Volume: 40
  Issue: 3
  Issue date: March 2009
  Publication year: 2009
  Pages: 21-25
  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 scheduling algorithm for LIN message scheduling was proposed. Positive direction bus load and reverse direction bus load were presented for analysis the bus schedulability. The positive message has been treated as sporadic ones while reversed the periodic ones. System matrix was used to schedule the messages based on time slice. The good real time characteristics of the algorithm were achieved and the master node of the algorithm became more flexible. Experiment has been carried out and four real networks were designed by using the algorithm.
  Number of references: 5
  Main heading: Scheduling algorithms
  Controlled terms: Buses  -  Public works  -  Scheduling
  Uncontrolled terms: Dynamic scheduling algorithm  -  LIN bus  -  Local interconnect networks  -  Message scheduling  -  On time  -  Real networks  -  Real-time characteristics  -  Schedulability  -  System matrix
  Classification code: 403 Urban and Regional Planning and Development  -  663.1 Heavy Duty Motor Vehicles  -  723 Computer Software, Data Handling and Applications  -  912.2 Management  -  921 Mathematics
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.
 
51. Accession number:  20091512029373
  Title: Arithmetic of the cooperating point of engine and torque converter
  Authors: Li, Chunfu1 ; Chen, Huiyan1 ; Tao, Gang1 ; Li, Yanqin2 
  Author affiliation: 1 School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081, China
                  2 Automobile Department, Inner Mongolia Communications Polytechnic, Chifeng 024000, China
  Corresponding author: Li, C. (lcf2052@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: 3
  Issue date: March 2009
  Publication year: 2009
  Pages: 11-15
  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: Accurate analysis of cooperating input and output performance of engine and torque converter is the essential of matching hydrodynamic transmission vehicle power system. Accurate calculation of cooperating point is the difficulty and key of cooperating input and output performance analysis of engine and torque converter. Least square higher order polynomial fit was adopted for engine net torque performance curve to get a precise result. At the same time, N equal division method, Newton's method and direct extraction of root were applied respectively to calculate the cooperating point of engine and torque converter. Matlab program language was used and three methods were testified by practical calculation and analysis. The calculating results show that three methods are all effective for the calculation of cooperating point of engine and torque converter.
  Number of references: 8
  Main heading: Torque converters
  Controlled terms: Curve fitting - Electric network analysis - Engines - Fluid dynamics- Hydraulic torque converters - MATLAB - Newton-Raphson method - Torque
  Uncontrolled terms: Accurate analysis  -  Calculating method  -  Cooperating performance  -  Cooperating point  -  Direct extractions  -  Higher orders  -  Hydrodynamic transmissions  -  Input and outputs  -  Least squares  -  MATLAB programs   -  Newton's methods  -  Performance curves  -  Power systems  -  Practical calculations
  Classification code: 723.1.1 Computer Programming Languages  -  723.5 Computer Applications  -  921 Mathematics  -  921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory  -  921.5 Optimization Techniques  -  921.6 Numerical Methods  -  922.2 Mathematical Statistics  -  931.1 Mechanics  -  931.2 Physical Properties of Gases, Liquids and Solids  -  703.1.1 Electric Network Analysis  -  421 Strength of Building Materials; Mechanical Properties  -  602 Mechanical Drives and Transmissions  -  602.1 Mechanical Drives  -  612 Engines  -  617.3 Steam Engines  -  631.1 Fluid Flow, General  -  632.2 Hydraulic Equipment and Machinery  -  654.2 Rocket Engines  -  662.4 Automobile and Smaller Vehicle Components
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

65. Accession number:  20091512029414
  Title: Hybrid machine for implementing given trajectory by fuzzy controller
  Authors: Li, Renjun1 ; Liu, Hongzhao1 ; Li, Pengfei1 
  Author affiliation: 1 Faculty of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China
  Corresponding author: Li, R. (lrjlunwen@163.com) 
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title: Nongye Jixie Xuebao
  Volume: 40
  Issue: 3
  Issue date: March 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: Because of inertia and changing load, the angular velocity fluctuation of constant speed motor (CSM) was generated in hybrid mechanism, and the precision of out put trajectory was reduced. The control strategy which applies servo motor tracking velocity of CSM was put forward, for CSM was uncontrollable. The control platform of hybrid machine was presented. The fuzzy controller was designed by means of the control scheme, and the velocity fluctuation was compensated for accurate implementation given trajectory. The result of experiment indicates that the fuzzy controller was feasible and effective.
  Number of references: 8
  Main heading: Controllers
  Controlled terms: Degrees of freedom (mechanics)  -  Motors  -  Trajectories  -  Velocity
  Uncontrolled terms: Constant speed motors  -  Control platforms  -  Control schemes  -  Control strategies  -  Fuzzy controller  -  Hybrid machine  -  Hybrid mechanisms  -  Servo motors  -  Trajectory generation  -  Velocity fluctuation
  Classification code: 931.1 Mechanics  -  732.1 Control Equipment  -  731.5 Robotics  -  705.3 Electric Motors  -  655.2 Satellites  -  654.1 Rockets and Missiles  -  632.4 Pneumatic Equipment and Machinery  -  632.2 Hydraulic Equipment and Machinery  -  404.1 Military Engineering
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

78. Accession number:  20091512029397
  Title: Effect of alkali treatment on straw forming technology
  Authors: Bai, Hongchun1 ; Sun, Qing1 ; Zhou, Peng1 ; Zhang, Chunmei1 ; Gu, Shiyan1 ; Gao, Wei1 
  Author affiliation: 1 Engineering College, Shenyang Agricultural University, Shenyang 110161, China
  Corresponding author: Sun, Q. (qings2008@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: 3
  Issue date: March 2009
  Publication year: 2009
  Pages: 121-124
  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: Particles of rice straw processed by sodium hydroxide can be used as binder in biomass fuel. The quadratic orthogonal rotation design with three factors was used to study the effects of the mass fraction of NaOH, temperature, and reaction time of alkali treatment on shear bond strength. Functional models of shear bond strength with three factors were established and analyzed by regress method in SPSS13.0 and response method in Matlab 7.1. The results show that the regression equation was effective, and the mathematical model for the simulation was presented. The effect order of three factors was as follows: the processing temperature, the amount of consistency, reaction time. The optimum conditions were 1.5% of consistency, 95°C of temperature and 17 h of reaction time.
  Number of references: 7
  Main heading: Shear strength
  Controlled terms: Binders  -  Biomass  -  Bond strength (materials)  -  MATLAB  -  Rotation  -  Sodium  -  Thermal effects
  Uncontrolled terms: Alkali treatment  -  Biomass fuels  -  Forming technologies  -  Functional models  -  Mass fractions  -  Optimum conditions  -  Processing temperatures  -  Quadratic orthogonal rotation design  -  Reaction time  -  Regression equations   -  Rice straw  -  Shear bond strength  -  Sodium hydroxides
  Classification code: 723.1.1 Computer Programming Languages  -  723.5 Computer Applications  -  803 Chemical Agents and Basic Industrial Chemicals  -  951 Materials Science  -  805.1.1 Biochemical Engineering  -  921 Mathematics  -  931.1 Mechanics  -  821.5 Agricultural Wastes  -  641 Heat and Mass Transfer; Thermodynamics  -  601.1 Mechanical Devices  -  421 Strength of Building Materials; Mechanical Properties  -  422 Strength of Building Materials; Test Equipment and Methods  -  525.1 Energy Resources and Renewable Energy Issues  -  531 Metallurgy and Metallography  -  534.2 Foundry Practice  -  549.1 Alkali Metals
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

79. Accession number:  20091512029413
  Title: Method for dynamic balancing of production line in workshop
  Authors: Hu, Jing1 ; Liu, Mingzhou1 ; Lei, Jingfa2 ; Ge, Maogen1 ; Chen, Chenghe1 
  Author affiliation: 1 School of Mechanical and Automotive Engineering, Hefei University of Technology, Hefei 230009, China
                  2 Department of Mechanical and Electrical Engineering, Anhui University of Architecture, Hefei 230601, China
  Corresponding author: Liu, M. (liumingzhou0551@163.com)
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title: Nongye Jixie Xuebao
  Volume: 40
  Issue: 3
  Issue date: March 2009
  Publication year:  2009
  Pages: 194-198 207
  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: Focusing on the deficiencies in production line balancing of present methods, a new method named production line's dynamic balancing method, which combined heuristic method and visualization simulation together, was proposed. In this method, a double-objective model of line balancing was built up, which ensures the number of workstations and the smoothness index are both minimum. Then an improved particle swarm optimization algorithm was used to solve the problem. The production line system is suitable to build its visualization simulation model by the simulation software of Witness. At last, an instance of this method was discussed.
  Number of references: 10
  Main heading: Heuristic methods
  Controlled terms: Computer software  -  Particle swarm optimization (PSO)  -  Reactive power  -  Visualization
  Uncontrolled terms: Improved particle swarm optimization algorithm  -  Line balancing  -  Objective models  -  Production line's dynamic balancing  -  Simulation on Witness software  -  Simulation softwares  -  Smoothness indices  -  Visualization simulations
  Classification code: 703.1 Electric Networks  -  706 Electric Transmission and Distribution  -  723 Computer Software, Data Handling and Applications  -  902.1 Engineering Graphics  -  921 Mathematics  -  921.5 Optimization Techniques
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

91. Accession number:  20091512029394
  Title: Fragmentation fractal dimensions of cohesive soil under impact and its influencing factors
  Authors: Meng, Fengying1 ; Ding, Qishuo1 ; Lu, Fei1 ; Ding, Weimin1 ; Pan, Genxing1 
  Author affiliation: 1 School of Engineering, Nanjing Agricultural University, Nanjing 210031, China
  Corresponding author: Ding, Q. (qsding@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: 3
  Issue date: March 2009
  Publication year: 2009
  Pages: 108-111 124
  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 scaling definition based on two times scale was provided for soil fragmentation analysis. An experiment was conducted to uncover the relationships among soil fragments fractal dimension and the falling weight, falling height, soil moisture content, and specific fragmentation energy. The result shows that no relation exists among fractal dimension, falling weight and falling height, but obvious correlation appears among soil fractal dimension, moisture content and specific fragmentation energies. A further comparison of fractal dimensions shows that soil under impacting action has a much lower value than that under natural actions.
  Number of references: 27
  Main heading: Fractal dimension
  Controlled terms: Groundwater - Initiators (chemical) - Moisture determination - Partial discharges - Particle size - Particle size analysis - Size distribution - Soil moisture
  Uncontrolled terms: Cohesive soil-Falling weights-Fragmentation analysis-Fragmentation energies-Fragmentation fractal dimensions-Fragments fractal dimensions-  Impact fragmentation - Influencing factors - Moisture contents - Particle size distribution - Soil fragments - Soil moisture contents
  Classification code: 951 Materials Science - 922.2 Mathematical Statistics - 931.2 Physical Properties of Gases, Liquids and Solids - 933.1 Crystalline Solids - 943.2 Mechanical Variables Measurements - 943.3 Special Purpose Instruments - 944.2 Moisture Measurements - 921 Mathematics - 701.1 Electricity: Basic Concepts and Phenomena - 531.2 Metallography - 483.1 Soils and Soil Mechanics - 444.2 Groundwater - 423 Non Mechanical Properties and Tests of Building Materials - 803 Chemical Agents and Basic Industrial Chemicals
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.
 
92. Accession number: 20091512029374
  Title: Design and performance experiment of vehicle-borne strapdown 3-DOF stabilization platform
  Authors: Man, Yiming1 ; Gong, Jianwei1 ; Chen, Huiyan1 ; Qi, Jianyong2 ; Zhao, Xin3 
  Author affiliation: 1 Intelligent Vehicle Research Center, Beijing Institute of Technology, Beijing 100081, China
                 2 Beijing Keeven Aviation Instrument Co. Ltd., Beijing 100081, China
                 3 Research Institute of 210, China North Industries Group Co., Beijing 100089, China
  Corresponding author:  Man, Y. (manyiming0419@sina.com) 
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title: Nongye Jixie Xuebao
  Volume: 40
  Issue: 3
  Issue date: March 2009
  Publication year: 2009
  Pages: 16-20
  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 configuration feature and function demand of vehicle-borne line-of-sight (LOS) stabilization platform, a strap-down stabilization platform system was schemed. Combined with communication protocol between upper computer and lower computer of the stabilization platform control system, adopted the multithread and multimedia timer technology, an upper computer soft was compiled with visual C , which was used to acquire and send gimbals position information real-time. To validate the real-time communication function of platform control system, the dynamic performance test was carried out. The results indicate that the real-time communication capability of stable platform control system satisfie semploy requirements.
  Number of references: 8
  Main heading: Identification (control systems)
  Controlled terms: Communication  -  Concurrency control  -  Control system analysis  -  Experiments  -  Multimedia systems  -  Multitasking  -  Stabilization  -  Systems analysis  -  Vehicles
  Uncontrolled terms: Communication protocols  -  Configuration features  -  Dynamic performance  -  Line of sights  -  Multi threads  -  Performance experiments  -  Platform controls  -  Platform systems  -  Position informations  -  Real-time communications   -  Stable platforms  -  Strap-down stabilization platform  -  Upper computers  -  VISUAL C
  Classification code: 961 Systems Science  -  951 Materials Science  -  912.3 Operations Research  -  901.3 Engineering Research  -  731.3 Specific Variables Control  -  731.1 Control Systems  -  723.5 Computer Applications  -  723.3 Database Systems  -  722.4 Digital Computers and Systems  -  716 Telecommunication; Radar, Radio and Television  -  432 Highway Transportation
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

93. Accession number:  20091512029411
  Title: Study on VOC classification approach based on MPM
  Authors: Tu, Li1, 2 ; Zhang, Shuyou1 
  Author affiliation: 1 College of Mechanical and Energy Engineering, Zhejiang University, Hangzhou 310027, China
                  2 Department of Mechanical Engineering, Zhejiang Mechanical and Electrical College, Hangzhou 310053, China
  Corresponding author: Zhang, S. (zsy@cmee.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: 3
  Issue date: March 2009
  Publication year: 2009
  Pages: 184-188
  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 the classification problem of the complex product voice of customers with a large number of catalogs and data volumes, a heuristic strategy was proposed to resolve the coding designing problem by using output of a probability minimax machine and sample interval attribute. An algorithm with less iterative step s of optimization was taken as a "weak" algorithm while preserving its other characteristics like large margin and geometric properties. The nonlinear mapping was applied for "weak" algorithms' output (vector) to work in high dimensional spaces and improve the performances. At last, the experiments with the propose d algorithm were described to show that the approach was more effective than others by using forklift VOC.
  Number of references: 11
  Main heading: Volatile organic compounds
  Controlled terms: Algorithms
  Uncontrolled terms: Classification approaches - Complex products - D algorithms - Data volumes  -  Geometric properties  -  Heuristic strategies  -  High-dimensional spaces  -  Interval attributes  -  Mini maxes  -  MPM   -  Multiclass classification  -  Non-linear mappings  -  Output code  -  VOC  -  Voice of customers
  Classification code: 451.1 Air Pollution Sources  -  723 Computer Software, Data Handling and Applications  -  804.1 Organic Compounds  -  921 Mathematics
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

106. Accession number: 20091512029392
  Title: Finite element method for hydraulic design of drip irrigation submain units with virtual emitter system
  Authors: Zhang, Zhixin1 ; Wang, Jiandong2 ; Li, Xin3 ; Zhao, Yuefen4
  Author affiliation: 1 Key Laboratory of Modern Precision Agriculture System Integration Research, China Agricultural University, Beijing 100083, China
 
2 Department of Irrigation and Drainage, China Institute of Water Resources and Hydropower Research, Beijing 100044, China
　　　　　　　　　3 Changping Water Resource Bureau, Beijing 102200, China
　　　　　　　　　4 Beijing Land-star Planning and Design Institute, Beijing 100080, China
  Corresponding author: Zhang, Z. (zhzhixin@163.com) 
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title: Nongye Jixie Xuebao
  Volume: 40
  Issue: 3
  Issue date: March 2009
  Publication year: 2009
  Pages: 99-102
  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 hydraulic calculation of drip irrigation submain units plays a key role in the system design. The finite element method with virtual emitters can compute the head loss of each submain and capillary. The ways to reduce computational errors were suggested by selecting a certain amounts of elements in order to meet drip irrigation design need. Moreover, finite element method with virtual emitters can re duce computational work and memory demands dramatically. The research method put forward in this study provides a new way for hydraulic design of large drip irrigation system.
  Number of references: 6
  Main heading: Finite element method
  Controlled terms:  Design - Hydraulics - Irrigation - Water piping systems
  Uncontrolled terms:  Computational errors  -  Computational works  -  Drip irrigation  -  Drip irrigation systems  -  Head loss  -  Hydraulic analysis  -  Hydraulic calculations  -  Hydraulic designs  -  research methods  -  Submain unit   -  System designs  -  Virtual emitter
  Classification code: 921.6 Numerical Methods  -  902.1 Engineering Graphics  -  821.3 Agricultural Methods  -  802.1 Chemical Plants and Equipment  -  643.2 Space Heating Equipment and Components  -  632.1 Hydraulics  -  619.1 Pipe, Piping and Pipelines  -  446.1 Water Supply Systems  -  408 Structural Design
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

107. Accession number:  20091512029396
  Title: Compression property analysis of plant straw packaging container
  Authors: Gao, De1 ; Jing, Quanrong2 ; Xu, Feng1 
  Author affiliation: 1 Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, China
                 2 Chinese Academy of Agricultural Mechanization Sciences, Beijing 100083, China
  Corresponding author: Gao, D. (gaode63@163.com) 
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume: 40
  Issue: 3
  Issue date: March 2009
  Publication year: 2009
  Pages: 117-120 129
  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 basic parameters of plant straw packaging container, such as Poiss on ratio, elastic modulus and so on, were gained by means of static compression test. The mechanical model was established from the force-deformation curve, and the packaging container was also analyzed through finite element method (FEM) based upon parameters and the model above. Some parameters such as the stress distribution law, stiffness and breaking strength under compression load were obtained and the easy-crackled position was also determined. It is proved that the calculation results are in accord with the experimental results. The research is the foundation for study on crack damage of tableware and provides evidence for the structure design and mould development.
  Number of references: 12
  Main heading: Finite element method
  Controlled terms: Compression testing-Containers-Elastic moduli- Stress concentration
  Uncontrolled terms: Basic parameters  -  Breaking strengths  -  Compression loads  -  Compression properties  -  Crack damages  -  Finite element analysis  -  Finite-element methods  -  Force-deformation curves  -  Mechanical model  -  Plant straw   -  Static compressions  -  Stress distributions  -  Structure designs
  Classification code: 943 Mechanical and Miscellaneous Measuring Instruments  -  921.6 Numerical Methods  -  694 Packaging  -  951 Materials Science  -  691 Bulk Handling and Unit Loads  -  422 Strength of Building Materials; Test Equipment and Methods  -  421 Strength of Building Materials; Mechanical Properties  -  422.2 Test Methods
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

140. Accession number: 20091512029388
  Title: Analysis of kinematic principle of transplanting mechanism with eccentric gears and non-circular gears
  Authors: Yu, Gaohong1 ; Qian, Mengbo1 ; Zhao, Yun1 ; Wu, Chuanyu1 
  Author affiliation: 1 College of Machine and Automation Controlling, Zhejiang Sci.-Technol. University, Hangzhou 310018, China
  Corresponding author: Zhao, Y. (zhaoyun@zist.edu.cn) 
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title: Nongye Jixie Xuebao
  Volume:  40
  Issue:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  81-84
  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 type of rotary transplanting mechanism with planetary gears, which is used to transplant seedlings for high-performance rice transplanter, was introduced. Work principle and structural feature of the mechanism were analyzed, and its kinematic models were established. Parameters optimization software based on Visual Basic 6.0 was programmed. Kinematic property was analyzed and simulated, based on the optimization method of human-computer conversation, then structural parameters of the transplanting mechanism were obtained, which could meet the demands of transplanting seedlings, such as, e=3 mm, R=19 mm, α0=-40°, φ0=36°, S=155 mm, H=180 mm.
  Number of references:  7
  Main heading:  Gears
  Controlled terms:  Kinematics  -  Optimization
  Uncontrolled terms:  Eccentric gears and non-circular gears  -  High-performance rice transplanter  -  Human-computer conversations  -  Kinematic models  -  Kinematic properties  -  Optimization methods  -  Parameters optimizations  -  Planetary gears  -  Rotary transplanting mechanism  -  Structural features   -  Structural parameters  -  Visual Basic 6.0  -  Work principles
  Classification code:  601.2 Machine Components  -  921.5 Optimization Techniques  -  931.1 Mechanics
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

 153. Accession number:  20091512029415
  Title: Multi-physics analysis of an electrostatically actuated microcantilever in viscous fluids
  Authors: Lin, Xiezhao1, 2 ; Ying, Ji1 ; Chen, Zichen1 
  Author affiliation:  1 College of Mechanical and Energy Engineering, Zhejiang University, Hangzhou 310027, China
 2 College of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350002, China
  Corresponding author: Ying, J. (yingji_zju@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:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  203-207
  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 dymamical behavior of MEMS devices is strongly affected by viscous fluid damping effects from the surrounding. These damping effects have to be carefully considered for the design and optimization. For predicting the hydrodynamic loading of an electrostatical device in viscous fluids, it is necessary to build an electrostatic-mechanical-fluidic coupled model, where the flows characteristics were described by Navier-Stokes equations. Comprehensive analyses of the static/dynamic closing behaviors of the microswitch in viscous fluids were performed. Compared with published work of other researchers available in the literature, the numerical model was validated. After that, the static/dynamic closing voltages of the microswitch in the air and deionized water were calculated. The transient behaviors of microswitch under different action voltages were also simulated, including the squeeze-film damping pressure distribution as well. The results show that the difference between the static and the dynamic pull-in voltage in the deionized water is smaller than that in air.
  Number of references:  8
  Main heading:  Navier Stokes equations
  Controlled terms:  Actuators  -  Computer simulation  -  Damping  -  Deionized water  -  Electrostatic actuators  -  Fluid dynamics  -  Fluidics  -  Fluids  -  Microelectromechanical devices  -  Viscous flow
  Uncontrolled terms:  Comprehensive analysis  -  Coupled models  -  Damping effects  -  Design and optimizations  -  Electrostatical actuator  -  Hydrodynamic loadings  -  Mems devices  -  Micro cantilevers  -  Micro switches  -  Multi-physics analysis   -  Numerical models  -  Pull-in voltages  -  Squeeze-film damping  -  Transient behaviors  -  Viscous fluids
  Classification code:  714 Electronic Components and Tubes  -  723.5 Computer Applications  -  731.2 Control System Applications  -  704.1 Electric Components  -  732.1 Control Equipment  -  931.1 Mechanics  -  932.2 Nuclear Physics  -  921.2 Calculus  -  704 Electric Components and Equipment  -  601.1 Mechanical Devices  -  602.1 Mechanical Drives  -  631 Fluid Flow  -  445.1 Water Treatment Techniques  -  631.1 Fluid Flow, General  -  632.5 Fluidics  -  701.1 Electricity: Basic Concepts and Phenomena  -  632 Hydraulics, Pneumatics and Related Equipment, and Fluidics
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

154. Accession number:  20091512029380
  Title: Design and experiment on the electric control system based on EPR for the CNG engine
  Authors:  Wang, Du1 ; Song, Junhua1 ; Mao, Xiaojian1 ; Zhuo, Bin1 
  Author affiliation: 1 School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China
  Corresponding author: Wang, D. (wangdu@sjtu.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title: Nongye Jixie Xuebao
  Volume:  40
  Issue:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  46-50 45
  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 meet the stage-IV emission standard in China, a electric control system based on EPR (electronic pressure regulator) for the lean-burn turbocharging heavy-duty automotive CNG engine was developed. The configuration and control principle of the CNG supply system, the intake management system and the ignition system were analyzed. By comparing with the multi-points injection system and single-point injection system, the principle and advantage of the EPR were analyzed. The Experiment indicates that the maximal power and the maximal torque of the CNG engine are close to those of the original diesel engine, and the emissions meet the stage-IV emission standard in China.
  Number of references:  6
  Main heading:  Engines
  Controlled terms:  Diesel engines  -  Electron resonance  -  Electron spin resonance spectroscopy  -  Experiments  -  Ignition systems  -  Paramagnetic resonance  -  Pressure regulators  -  Quantum theory
  Uncontrolled terms:  CNG engine  -  Control principles  -  Electric control systems  -  Electronic pressures  -  Emission standards  -  EPR  -  Injection systems  -  Lean burn  -  Management systems  -  Multi-points   -  Point injections  -  Supply systems  -  Turbocharging
  Classification code:  701.2 Magnetism: Basic Concepts and Phenomena  -  732.1 Control Equipment  -  801 Chemistry  -  901.3 Engineering Research  -  931.3 Atomic and Molecular Physics  -  931.4 Quantum Theory; Quantum Mechanics  -  932.2 Nuclear Physics  -  654.2 Rocket Engines  -  521.1 Fuel Combustion  -  522 Gas Fuels  -  612 Engines  -  612.1 Internal Combustion Engines, General  -  612.2 Diesel Engines  -  617.3 Steam Engines  -  619.1 Pipe, Piping and Pipelines
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

155. Accession number:  20091512029404
  Title: Plant leaf disease recognition based on kernel K-means clustering algorithm
  Authors:  Wang, Shouzhi1, 2 ; He, Dongjian3 ; Li, Wen2 ; Wang, Yanchun1 
  Author affiliation: 1 College of Mechanical and Electronic Engineering, Northwest A and F University, Yangling 712100, China
                 2 Mechanical and Electronic Engineering Department, Weihai Vocational College, Weihai 264210, China
                 3 College of Information Engineering, Northwest A and F University, Yangling 712100, China
  Corresponding author:  Wang, S.
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title: Nongye Jixie Xuebao
  Volume:  40
  Issue:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  152-155
  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 features of plant disease image, vector median filter was firstly applied to remove noise of the acquied color images of grape leaf with disease. Then texture features and color features of color image of leaf with disease were extraccted as feature vector. And by using Mercer kernel functions, the data in the original space was maped to a high-dimensional feature space in which the data has been clustered efficiently. The precision of four kinds of experimental maize diseases recognition is 82.5%, and kernel K-means clustering algorithm suited the plant leaf disease classification recognition.
  Number of references:  14
  Main heading: Clustering algorithms
  Controlled terms: Color  -  Color image processing  -  Support vector machines  -  Water supply systems
  Uncontrolled terms:  Color features  -  Color images  -  Feature vectors  -  High-dimensional feature spaces  -  Kernel K-means clustering algorithm  -  Mercer kernel functions  -  Plant disease  -  Plant leaf  -  Remove noise  -  Texture features   -  Vector median filters
  Classification code:  446.1 Water Supply Systems  -  721 Computer Circuits and Logic Elements  -  723 Computer Software, Data Handling and Applications  -  741.1 Light/Optics  -  903.1 Information Sources and Analysis
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

172. Accession number:  20091512029383
  Title: Design and experiment of precision magnetic cylinder-seeder
  Authors: Hu, Jianping1 ; Zheng, Sainan1 ; Liu, Wendong1 
  Author affiliation: 1 Jiangsu Provincial Key Laboratory of Modern Agricultural Equipment and Technology, Jiangsu University, Zhenjiang 212013, China
  Corresponding author:  Hu, J. (hujp@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:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  60-63
  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:  In order to solve the problem of small seed's precision seeding, such as vegetable and flower seeds, a new type of magnetic cylinder-seeder was developed according to the magnetic seed-metering principle. By analyzing and comparing magnetic field route and intensity of one row suction head in the case of two kinds of polarity arrangements, the designed project was ascertained that four rows of magnetic suction head were assembled in the cylinder inner and its pole was arranged according to gap way. To improve the metering performance of this device, the orthogonal experiment was conducted with test object of rapeseed coated with magnetic powder, test factors of cylinder rotation rate and suction head's electric current. Variance analysis of the experiment results indicates that the suction head's electric current is the main factor and the optimization of two factors are the suction head's electric current of 230 mA and the cylinder rotation rate of 15 r/min. Under such working conditions, the single seed index is 93.6%, multi-seed index is 2.2%, and the seed-metering efficiency could achieve 3600 rows per hour, so it proves that this machine has higher sowing precision and better adaptability to small seeds.
  Number of references:  11
  Main heading:  Seed
  Controlled terms:  Cylinders (shapes)  -  Electric current measurement  -  Electric currents  -  Electric network analysis  -  Electric power supplies to apparatus  -  Experiments  -  Magnetic fields  -  Magnetic materials  -  Pneumatic materials handling equipment  -  Rotation
  Uncontrolled terms:  Cylinder rotations  -  Magnetic cylinder  -  Magnetic powders  -  Magnetic seeds  -  Orthogonal experiments  -  Seed-metering device  -  Suction heads  -  Test objects  -  Variance analysis  -  Working conditions
  Classification code:  942.2 Electric Variables Measurements  -  708.4 Magnetic Materials  -  713.5 Other Electronic Circuits  -  715.2 Industrial Electronic Equipment  -  821.4 Agricultural Products  -  901.3 Engineering Research  -  931.1 Mechanics  -  703.1.1 Electric Network Analysis  -  701.1 Electricity: Basic Concepts and Phenomena  -  691.1 Materials Handling Equipment  -  632.4 Pneumatic Equipment and Machinery  -  601.1 Mechanical Devices  -  408.2 Structural Members and Shapes  -  701.2 Magnetism: Basic Concepts and Phenomena
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

173. Accession number:  20091512029400
  Title: Optimum technology on extraction and decoloration of lentinan by composite enzyme method
  Authors: Zou, Donghui1 ; Liang, Min2 ; Yang, Yong1 ; Wang, Wenxia1 
  Author affiliation: 1 Key Laboratory of Processing Agricultural Products, Qiqihar University, Qiqihar 161006, China
2 Chemistry and Chemical Engineering Institute, Qiqihar University, Qiqihar 161006, China
  Corresponding author:  Zou, D. (zoudongh99@sina.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  135-138 134
  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 optimum processing conditions of the lentinan enzymatic extraction and the decoloration method of mushroom polysaccharides were discussed. By using papain and cellulose enzyme complex processing method, the ratio of the volume, temperature, the optimum pH value and role of time for orthogonal experiment were determined respectively. The optimum technology of enzymatic extraction of lentinan was as follows: the quality proportion of papain and cellulose enzyme was 2, the enzyme reaction temperature was 55°C, pH value was 6.5, the reaction time was 3 h. The extraction rate reached 16.1 percent under this condition. The optimum condition of decoloration technology by orthogonal experiment was as follows: quantity of activated carbon w as 2.0%, temperature of decoloration was 30°C, pH value was 4.0, the adsorption time was 90 min.
  Number of references:  6
  Main heading:  Activated carbon
  Controlled terms:  Adsorption  -  Biopolymers  -  Cellulose  -  Enzymes  -  Experiments  -  pH effects  -  Polysaccharides  -  Processing  -  Technology
  Uncontrolled terms:  Adsorption time  -  Decoloration technology  -  Enzymatic extraction  -  Enzyme complexes  -  Enzyme reactions  -  Extraction rates  -  Lentinan  -  Mushroom polysaccharides  -  Optimum conditions  -  Optimum pH   -  Optimum processing  -  Orthogonal experiment  -  pH values  -  Reaction time
  Classification code:  901.3 Engineering Research  -  901 Engineering Profession  -  815.1.1 Organic Polymers  -  815.1 Polymeric Materials  -  811.3 Cellulose, Lignin and Derivatives  -  913.4 Manufacturing  -  804.1 Organic Compounds  -  802.3 Chemical Operations  -  801.2 Biochemistry  -  801.1 Chemistry, General  -  461.2 Biological Materials and Tissue Engineering  -  804 Chemical Products Generally
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

174. Accession number:  20091512029390
  Title: Experiment on atomizing properties of Helmholtz pulse combustor
  Authors: Yang, Deyong1 ; Xie, Xiangyan2 ; Liu, Xiangdong1 
  Author affiliation: 1 College of Engineering, China Agricultural University, Beijing 100083, China
2 Beijing Institute of Quality Technical Supervision Information, Beijing 100013, China
  Corresponding author: Yang, D. (ydy@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:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  90-92
  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 oscillating hot air that generated by a pulse combustor can be used to atomize and dry liquid materials. It has many advantages, such as low operation cost, high drying quality, and simple structure of the dryer. A small Helmholtz pulse combustor was used in this research. An optical analyzer was employed for measuring the mean diameters of atomized droplets and droplets size distribution. The feed rate and viscosity of liquid material, frequency of oscillating hot air are the main factors affecting the atomizing properties. The experimental results indicated that the uniform droplet size distribution could be obtained under the conditions of a low feed rate, high-frequency pulsating flow and moderate viscosity.
  Number of references:  8
  Main heading:  Combustion
  Controlled terms:  Atomization  -  Combustors  -  Drop formation  -  Liquids  -  Size determination  -  Size distribution  -  Thermochemistry  -  Viscosity
  Uncontrolled terms:  Atomized droplets  -  Droplet size distributions  -  Drying qualities  -  Feed rates  -  Helmholtz  -  High frequencies  -  Hot airs  -  Liquid materials  -  Mean diameters  -  Operation costs   -  Optical analyzers  -  Pulsating flows  -  Pulse combustion  -  Pulse combustors  -  Simple structures
  Classification code:  943.3 Special Purpose Instruments  -  933.1 Crystalline Solids  -  931.2 Physical Properties of Gases, Liquids and Solids  -  922.2 Mathematical Statistics  -  802.3 Chemical Operations  -  802.1 Chemical Plants and Equipment  -  801.4 Physical Chemistry  -  641.1 Thermodynamics  -  631.1 Fluid Flow, General  -  531.2 Metallography  -  521.2 Combustors  -  521.1 Fuel Combustion  -  423 Non Mechanical Properties and Tests of Building Materials
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

175. Accession number:  20091512029371
  Title: Modeling and simulation of general 3D virtual stochastic road model
  Authors: Peng, Jia1 ; He, Jie1 ; Cong, Ying2 ; Li, Xuhong1 ; Chen, Yikai1 
  Author affiliation: 1 Transportation College, Southeast University, Nanjing 210096, China
　　　　　　　　 2 Nantong Urban Planning and Research Center, Nantong 226006, China
  Corresponding author:  Peng, J. (21201119@163.com) 
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  1-4 25
  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 provide the research of virtual prototype a complex 3-D virtual road environment, a 3-D FFT stochastic road model was established based on the single-point FFT model, and then the simulation result was gained by Matlab. What's more, based on the theory of triangle network, a general 3-D virtual road model with the arithmetic of nodes and elements was created. Then a specified 3-D virtual road file was imported into Adams to form the 3-D virtual road. Finally, a C-level virtual road was generated for the riding performance simulation of virtual vehicle. By comparing the simulation result with the GB/T 13441-92, the virtual vehicle's reasonable time under t he ride performance requirement was obtained.
  Number of references:  13
  Main heading:  Virtual reality
  Controlled terms:  Fast Fourier transforms  -  MATLAB  -  Packet networks  -  Random processes  -  Roads and streets  -  Stochastic models  -  Three dimensional
  Uncontrolled terms:  3D virtual stochastic road  -  Modeling and simulations  -  Performance simulations  -  Ride performance  -  Road environments  -  Road models  -  Simulation  -  Simulation results  -  Virtual prototypes
  Classification code:  921.3 Mathematical Transformations  -  921 Mathematics  -  902.1 Engineering Graphics  -  723.5 Computer Applications  -  723.1.1 Computer Programming Languages  -  922.1 Probability Theory  -  723 Computer Software, Data Handling and Applications  -  718 Telephone Systems and Related Technologies; Line Communications  -  717 Optical Communication  -  716 Telecommunication; Radar, Radio and Television  -  406.2 Roads and Streets  -  721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

193. Accession number:  20091512029385
  Title: Design and research on rice precision needle-like vacuum seeder
  Authors: Zhang, Xiaohui1 ; Song, Jiannong2 
  Author affiliation: 1 Center of Agriculture Machinery Extension, MOA, Beijing 100079, China
2 College of Engineering, China Agricultural University, Beijing 100083, China
  Corresponding author: Song, J. (songjn@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:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  69-71 68
  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: Structure and seeding theories of the rice precision needle-like vacuum seeder was introduced. The experimental results for hybrid rice indicate that the seeder is capable to meet the requirement of precision seeding and low rate of damaged seed. The analyses of the experimental results indicate that the vacuum value is the most important factor, the angle of the needle top and rotate speed of the roller follow. The optimum operation condition with the level of factors as follows: vacuum value 4.8 kPa, the angle of the needle top surface 30° and rotate speed of the roller 5 r/min.
  Number of references:  7
  Main heading:  Needles
  Controlled terms: Grain (agricultural product)  -  Pneumatic materials handling equipment  -  Rollers (machine components)  -  Seed  -  Vacuum
  Uncontrolled terms:  Hybrid rice  -  Low rates  -  Needle-like suction theory  -  Optimum operation conditions  -  Precision seeding  -  Rotate speed  -  Seed-metering device  -  Top surfaces
  Classification code:  821.4 Agricultural Products  -  819.6 Textile Mills, Machinery and Equipment  -  691.1 Materials Handling Equipment  -  633 Vacuum Technology  -  632.4 Pneumatic Equipment and Machinery  -  601.2 Machine Components  -  462.1 Biomedical Equipment, General
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

194. Accession number:  20091512029379
  Title: Numerical simulation of working process in the cylinder of diesel engine
  Authors: Shi, Aiping1 ; Ye, Lihua2 ; Yan, Mingde3 ; Ding, Zhongyi4 
  Author affiliation: 1 School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China
2 School of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China
3 Chinese Academy of Agricultural Mechanization Sciences, Beijing 100083, China
　　　　　　　　　4 Wuxi Fuel Injection Equipment Research Institute, Wuxi 214000, China
  Corresponding author: Shi, A. (shap@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:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  40-45
  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: Multi-dimensional transient numerical simulation was done for induction, compression, combustion process of YD490ZL diesel engine by AVL_Fire. The gas flow, heat transfer in cylinder wall, fuel spray, particle formation and so on in different time of entire working process were analyzed for providing certain reference for optimization design of diesel engine cylinder. Combustion will be more sufficient and fuel economy will be higher if the relative distance between the center of combustion chamber and cylinder at X direction is adjusted. The heat transfer coefficient changes with the space position as well as time. The distribution of heat transfer coefficient and temperature at different time and position was provided by multi-dimensional transient calculation which provided the best boundary condition for finite element calculation. Intake swirl was formed obviously during the intake process; ring movement of gas flow in combustion chamber was still existed near the top dead center while it was influenced by squish flow.
  Number of references:  8
  Main heading:  Engine cylinders
  Controlled terms:  Aerodynamics  -  Combustion  -  Combustion chambers  -  Computer simulation  -  Cylinders (shapes)  -  Diesel engines  -  Engines  -  Flow of gases  -  Fuel economy  -  Heat exchangers   -  Heat transfer coefficients  -  Mathematical models  -  Smoke  -  Thermochemistry
  Uncontrolled terms:  Combustion process  -  Cylinder walls  -  Diesel engine cylinders  -  Finite element calculations  -  Fuel sprays  -  Gas flows  -  Intake swirls  -  Multi-dimension  -  Numerical simulation  -  Optimization designs   -  Particle formations  -  Relative distances  -  Top dead centers  -  Transient calculations  -  Transient numerical simulations  -  Working process
  Classification code:  631.1.2 Gas Dynamics  -  641.1 Thermodynamics  -  641.2 Heat Transfer  -  651.1 Aerodynamics, General  -  921 Mathematics  -  654.2 Rocket Engines  -  801.3 Colloid Chemistry  -  801.4 Physical Chemistry  -  804 Chemical Products Generally  -  723.5 Computer Applications  -  617.3 Steam Engines  -  616.1 Heat Exchange Equipment and Components  -  408.2 Structural Members and Shapes  -  451.1 Air Pollution Sources  -  521 Fuel Combustion and Flame Research  -  521.1 Fuel Combustion  -  525.2 Energy Conservation  -  612 Engines  -  612.1.1 Internal Combustion Engine Components  -  612.2 Diesel Engines
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

195. Accession number:  20091512029377
  Title: Optimization of energy management strategy for a parallel-series HEV
  Authors: Shu, Hong1 ; Liu, Wenjie2 ; Yuan, Jingmin1 ; Gao, Yinping1 
  Author affiliation: 1 State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, China
                 2 Hunan CSR Times Electric Vehicle Co. Ltd., Zhuzhou 412001, China
  Corresponding author: Shu, H. (shuhong@cqu.edu.cn) 
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  31-35 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 driving modes of a parallel-series hybrid electric vehicle (HEV) were analyzed. The system efficiency models for the HEV at the charging and discharging mode were proposed based upon the engine efficiency map, motor/generator efficiency map and battery efficiency map. The optimization of energy management strategy for the hybrid system was studied, whose optimization target is the maximum of discharging efficiency at the discharging mode, and the maximum of charging efficiency, the maximum of charging efficiency and charging power at the charging mode with the different state of charge of battery, and the optimal control torque and speed for engine, motor and generator were obtained under the different driving conditions. The simulation of fuel economy shows that the decreasing ratio of fuel consumption of the hybrid system reaches 36.95%.
  Number of references:  5
  Main heading:  Charging (batteries)
  Controlled terms:  Automobile engines  -  Electric automobiles  -  Electric grounding  -  Energy management  -  Fuel economy  -  Hybrid computers  -  Optimal control systems  -  Optimization  -  Secondary batteries
  Uncontrolled terms:  Charging efficiencies  -  Driving conditions  -  Driving modes  -  Energy management strategy  -  Engine efficiencies  -  Hybrid electric vehicle  -  Optimal controls  -  State of charges  -  System efficiencies
  Classification code:  731.1 Control Systems  -  722.5 Analog and Hybrid Computers  -  706 Electric Transmission and Distribution  -  704 Electric Components and Equipment  -  702.1.2 Secondary Batteries  -  921.5 Optimization Techniques  -  701.1 Electricity: Basic Concepts and Phenomena  -  661.1 Automotive Engines  -  525.2 Energy Conservation  -  525 Energy Management and Conversion  -  521 Fuel Combustion and Flame Research  -  662.1 Automobiles
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

196. Accession number:  20091512029408
  Title: Calculation of the refinement curve length of shrimp and its correlation with weight
  Authors: Pan, Pengmin1 ; Li, Jianping1 ; Fu, Li1 ; Lu, Gulai1 ; Yang, Hui1 
  Author affiliation: 1 School of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310029, China
  Corresponding author:  Li, J. (jpli@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:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  172-175
  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: Refinement curve length of shrimp is an important factor in its weight prediction. Morphological filter was required to reduce branches of the refinement curve in order to get this value. The existence of branches was correctly judged by 3 × 3 neighborhood analysis of every pixel on the refinement curve. Then the length of refinement curves which contain branches could be calculated by erasing the endpoints to remove branches and average compensation method. The conclusion showed that the correlation was obvious, with the correlation coefficient of 0.894 between its refinement curve length and weight, 0.939 between the size and weight, and prediction correlation coefficient of 0.954 between comprehensive details both of the length and size of shrimp and the weight after modeling. The results indicate that it's promising to increase the predicting accuracy with refinement curve length.
  Number of references:  11
  Main heading:  Weighing
  Controlled terms:  Computer vision
  Uncontrolled terms:  Branch  -  Compensation methods  -  Correlation coefficients  -  Morphological filters  -  Refinement  -  Shrimp  -  Weight
  Classification code:  723.5 Computer Applications  -  731.6 Robot Applications  -  741.2 Vision  -  943.3 Special Purpose Instruments
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

197. Accession number:  20091512029401
  Title:  Applications and preparation of natural fruit wax with natamycin
  Authors:  Hu, Yunfeng1 ; Xing, Yage1 ; Feng, Li1 ; Li, Xihong1 ; Zhu, Zhiqiang1 
  Author affiliation: 1 Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
  Corresponding author: Li, X. (lixihong606@163.com) 
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  139-142
  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:  Effects of different additive on physical properties and natamycin on antibacterial property of natural fruit wax were studied, and the preparation technology of preservative fruit wax was proposed which was composed of shellac 120 g/L, morpholine 20 mL/L, propanediol 10 mL/L, ammonia 12 mL/L, the emulsion time was 30 min, and 0.6 g/L natamycin was added when the temperature was down to 60°C. The glorious orange and grapefruit were with good quality and appearance after being coated by this preservative wax under 5-10°C and 60%-65%RH for 45 d, furthermore, the weight loss rate was about 70% lower than uncoated fruits and the good quality rate was enhanced to 65%.
  Number of references:  6
  Main heading:  Fruits
  Controlled terms:  Emulsification  -  Waxes
  Uncontrolled terms:  Antibacterial properties  -  Morpholine  -  Natamycin  -  Preparation technologies  -  Preservation  -  Propanediol  -  Shellac  -  Weight loss rates
  Classification code:  802.3 Chemical Operations  -  804.1 Organic Compounds  -  821.4 Agricultural Products
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

213. Accession number:  20091512029416
  Title: Static actuating characteristics of intelligent pneumatic muscle
  Authors: Wang, Binrui1 ; Zhou, Weiyi1 ; Xu, Hong1 
  Author affiliation: 1 School of Mechanical and Electrical Engineering, China Jiliang University, Hangzhou 310018, China
  Corresponding author:  Wang, B. (wangbinrui@163.com) 
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  208-212 193
  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:  Deformation of shape memory alloy (SMA) fiber shell was studied and the intelligent pneumatic muscle (IPM) with SMA shell was proposed to improve actuating characteristics. Output force equation of IPM was established through axial and radial static force equilibrium analysis between fiber stress and external force. The equation between temperature and contraction ratio of SMA wire was deduced by analyzing the volume ratio of martensite to austenite during crystalline structure shift between two different phases. This ratio was adopted to analyze the contraction ratio, contraction force and variable stiffness of intelligent pneumatic muscle. SMA deformation and characteristics test simulations were conducted in Matlab and different pneumatic muscles' characteristics were compared. The results show there is hysteresis in SMA deformation and IPM can get greater bias angle and more flexible stiffness variation by adjusting SMA contraction ratio. The greater the SMA contraction ratio is, the bigger the contraction force of IPM is.
  Number of references:  10
  Main heading:  Muscle
  Controlled terms:  Alloys  -  Deformation  -  MATLAB  -  Permanent magnets  -  Pneumatic control  -  Pneumatic equipment  -  Robotics  -  Shrinkage  -  Stiffness
  Uncontrolled terms:  Characteristics tests  -  Contraction forces  -  Crystalline structures  -  External forces  -  Fiber stress  -  Output forces  -  Pneumatic muscle  -  Shape memory alloy  -  Shape memory alloy fibers  -  Simulation   -  Sma wires  -  Static forces  -  Stiffness variations  -  Variable stiffness  -  Volume ratios
  Classification code:  704.1 Electric Components  -  708.4 Magnetic Materials  -  723.1.1 Computer Programming Languages  -  951 Materials Science  -  723.5 Computer Applications  -  731.5 Robotics  -  921 Mathematics  -  731.1 Control Systems  -  632.4 Pneumatic Equipment and Machinery  -  632.3 Pneumatics  -  421 Strength of Building Materials; Mechanical Properties  -  422 Strength of Building Materials; Test Equipment and Methods  -  461.2 Biological Materials and Tissue Engineering  -  461.3 Biomechanics, Bionics and Biomimetics  -  531.1 Metallurgy  -  537.1 Heat Treatment Processes
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

214. Accession number: 20091512029387
  Title: Load spectrum compiling and fatigue life estimation of the cutter shaft of the whole-straw recycling machine
  Authors:  Ge, Yiyuan1 ; Wang, Jinwu1 ; Li, Shiwei1 ; Sun, Wenyi2 
  Author affiliation: 1 Engineering College, Northeast Agricultural University, Harbin 150030, China
2 No.49 Research Institute, China Electronics Technology Group Corporation, Harbin 150001, China
  Corresponding author:  Wang, J. (jinwuw@163.com) 
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  77-80
  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: By using the DH5937 stress measurement system and sensor technology, the data of the bending moment and torque of the cutter shaft were simulated and measured, and a combined load spectrum of the bending torsion coupling of the cutter shaft was complied. Meanwhile, an estimated formula of the fatigue life of the cutter shaft bearing combined stresses was deduced by using Miner liner cumulative dam age theory, and the fatigue life of the cutter shaft was estimated to be 443 h longer than the designed life by using the load spectrum of bending torsion coupling.
  Number of references:  8
  Main heading:  Bending (deformation)
  Controlled terms:  Compressive stress  -  Fatigue of materials  -  Recycling  -  Torsional stress
  Uncontrolled terms:  Combined stresses  -  Cutter shaft  -  Fatigue life  -  Load spectrum of bending torsion coupling  -  Whole-straw recycling
  Classification code:  408.1 Structural Design, General  -  421 Strength of Building Materials; Mechanical Properties  -  422.2 Test Methods  -  452.3 Industrial Wastes  -  951 Materials Science
  Database: Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

230. Accession number:  20091512029406
  Title: GSM-based remote monitoring system of farm field meteorological information
  Authors: Guo, Zhiwei1 ; Zhang, Yunwei1 ; Li, Shuang1 ; Jiang, Haibo1 
  Author affiliation: 1 Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650224, China
  Corresponding author:  Zhang, Y. (zhangyunwei72@gmail.com) 
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title: Nongye Jixie Xuebao
  Volume:  40
  Issue:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  161-166
  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:  On the basis of GSM with strong coverage power, a scheme, which can implement remote collection, transmission, and monitoring of farm field meteorological information, was presented to solve some problems, such as routing difficulty, high cost, distance limitation and restricted network access permission. Its structure and working principle were described in detail, and the software and hardware design was given. Furthermore, a type of application layer protocol, which will be useful for reducing congestion, was defined for more efficient transmission control and data recognition. The experimental results show that the proposed scheme is effective and efficient, and the given software and hardware design is feasible. The established remote monitoring system is flexible to be extended or reduced, and its communication success rate is 93.3%, which can fulfill the actual demand for remote monitoring of farm field meteorological information.
  Number of references:  10
  Main heading:  Wireless networks
  Controlled terms:  Farms  -  Hardware  -  Meteorological problems  -  Monitoring  -  Remote control
  Uncontrolled terms:  Application layer protocols  -  Field meteorological information  -  GSM  -  Hardware designs  -  High costs  -  Network access  -  PDU  -  Remote monitoring  -  Remote monitoring systems  -  Transmission controls   -  Working principles
  Classification code:  944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments  -  943 Mechanical and Miscellaneous Measuring Instruments  -  942 Electric and Electronic Measuring Instruments  -  941 Acoustical and Optical Measuring Instruments  -  821 Agricultural Equipment and Methods; Vegetation and Pest Control  -  731.1 Control Systems  -  722.4 Digital Computers and Systems  -  722.3 Data Communication, Equipment and Techniques  -  716.3 Radio Systems and Equipment  -  605 Small Tools and Hardware  -  443.1 Atmospheric Properties
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

231. Accession number:  20091512029384
  Title: CFD simulation and improvement of air-stream distributive metering device
  Authors: Li, Zhonghua1 ; Wang, Decheng1 ; Liu, Guilin2 ; Yang, Mingshao3 ; Wang, Zhenhua2 
  Author affiliation: 1 College of Engineering, China Agricultural University, Beijing 100083, China
2 Huhhot Branch, Chinese Academy of Agricultural Mechanization Sciences, Huhhot 010010, China
3 College of Engineering, Inner Mongolia Agricultural University, Huhhot 010010, China
  Corresponding author:  Wang, D. (wangdecheng_cau@126.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  64-68
  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 improve the uniformity of the forage seed metering, a 3-D model was built to simulate air-stream distributive metering device using computational fluid dynamics (CFD) method, in which the distribution of airflow field and path curve of the particle phase were simulated using standard k-Ε model and discrete phase model (DPM), respectively. The results of simulation were in good agreement with experimental data. However, in the simulation, a few seeds were left in the distributor due to the air vortex, which impairs the uniformity of seed sowing. Therefore, CFD simulation was conducted to improve the structure of distributor, and vortex-caused seed detention was finally avoided after the improvement.
  Number of references:  12
  Main heading:  Air
  Controlled terms:  Computational fluid dynamics  -  Fluid dynamics  -  Seed  -  Three dimensional  -  Vortex flow
  Uncontrolled terms:  3-d models  -  Air flow fields  -  Cfd-simulations  -  Computational fluid dynamics methods  -  Discrete phase models  -  Experimental datum  -  Forage seed  -  Metering device  -  Particle phase  -  Path curves   -  Seed metering  -  Seed sowing
  Classification code:  931.1 Mechanics  -  921.6 Numerical Methods  -  902.1 Engineering Graphics  -  821.4 Agricultural Products  -  804 Chemical Products Generally  -  723.5 Computer Applications  -  631.1.2 Gas Dynamics  -  631.1.1 Liquid Dynamics  -  631.1 Fluid Flow, General
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

241. ccession number:  20091512029403
  Title: Algorithms of path guidance line based on computer vision and their applications in agriculture and forestry environment
  Authors: Yang, Qinghua1 ; Wu, Jiayi1 ; Bao, Guanjun1 ; Gao, Feng1 
  Author affiliation: 1 Key Laboratory of Mechanical Manufacture and Automation, Zhejiang University of Technology, Hangzhou 310032, China
  Corresponding author:  Yang, Q. (robot@zjut.edu.cn) 
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title: Nongye Jixie Xuebao
  Volume:  40
  Issue:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  147-151
  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 advanced algorithms of generating path guidance line are proposed: the Hough transform-based is to pre-limit the angular value of possible collinear points before peak detection. This enables swift key-info abstraction in orderly-planted fields while offsetting imperfections brought by previous image segmentation, the solution to generate guidance line in forestry environments and locate points of trunk-and-earth intersection, then a dot array in the middle of the two point series is obtained. Then two methods are applied to process the dot array: either to detect a line for guidance using Hough transform or to leas t-square fit the two point series, so a line through the center is acquired to be the guidance path. Simulations and comparisons through Matlab show that the two algorithms are able to robustly recognize paths in their respective fit scenes and effectively process images in batches.
  Number of references:  12
  Main heading:  Forestry
  Controlled terms:  Computer vision  -  Curve fitting  -  Hough transforms  -  MATLAB  -  Timber
  Uncontrolled terms:  Agricultural and forestry environment  -  Dot arrays  -  Least square-fitting  -  Path guidance  -  Peak detections  -  Two points
  Classification code:  921.6 Numerical Methods  -  921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory  -  921.3 Mathematical Transformations  -  921 Mathematics  -  821.0 Woodlands and Forestry  -  922.2 Mathematical Statistics  -  811.2 Wood and Wood Products  -  731.6 Robot Applications  -  723.5 Computer Applications  -  723.1.1 Computer Programming Languages  -  415.3 Wood Structural Materials  -  741.2 Vision
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

242. Accession number:  20091512029409
  Title: Image identification of corn and weed based on fractal dimension
  Authors: Wu, Lanlan1 ; Liu, Jianying1 ; Wen, Youxian1 
  Author affiliation: 1 College of Engineering and Technology, Huazhong Agricultural University, Wuhan 430070, China
  Corresponding author:  Wen, Y. (wenyouxian@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:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  176-179
  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 method of identifying corn and weed using fractal dimension was developed. The obtained original images in the field had to be transformed to the HSI space at first. Image transformation was done using the non-variety of H channel in the HSI space in order to reduce effects from illumination changes, which was in favor of image segmentation. In order to identify corn and weed, three computational formulas of fractal dimension were proposed and compared. Mean fractal dimensions of corn and weed were obtained by fractal software which was programmed using Matlab software. The result shows that the Bouligand-Minkowski method was more effective than other methods, and mean fractal dimension of corn and weed was equal to 1.204 and 1.079 respectively. The identify accuracies of method based on SVM reach 80%.
  Number of references:  13
  Main heading:  Fractal dimension
  Controlled terms:  Image processing  -  Imaging systems  -  Initiators (chemical)  -  MATLAB  -  Partial discharges
  Uncontrolled terms:  Computational formulas  -  Corn  -  HSI spaces  -  Identification  -  Illumination changes  -  Image identifications  -  Image transformations  -  Matlab- softwares  -  Minkowski  -  Original images   -  Weed species
  Classification code:  803 Chemical Agents and Basic Industrial Chemicals  -  746 Imaging Techniques  -  741 Light, Optics and Optical Devices  -  921 Mathematics  -  723.5 Computer Applications  -  723.1.1 Computer Programming Languages  -  701.1 Electricity: Basic Concepts and Phenomena  -  723.2 Data Processing and Image Processing
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

260. Accession number:  20091512029378
  Title: Energy balance analysis of hydraulic confined piston engine
  Authors:  Zhang, Hongxin1 ; Zhang, Tiezhu1 ; Huo, Wei1 ; Zhao, Hong1 
  Author affiliation: 1 College of Mechanical and Electronic Engineering, Qingdao University, Qingdao 266071, China
  Corresponding author:  Zhang, H. (zhx@qdu.edu.cn) 
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  36-39
  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:  Hydraulic confined piston engine (HCPE) integrates traditional internal combustion engine and hydraulic pump into one assembly, which can transform the thermal energy from fuel combustion into hydraulic energy, is a new type of flexible power device. The dynamic model of HCPE was constructed firstly, and then the energy input, dissipation, distribution and output under nominal working condition were simulated. During energy transformation, the loss related to combustion is 57.65%, friction related loss is 6.24%, hydraulic system related loss is 7.78%, effective power output is 26.87%, and the other loss is 1.46%. The curve of effective power ratio shows convexity shape along with increase of rotational speed or throttling.
  Number of references:  8
  Main heading:  Engine pistons
  Controlled terms:  Combustion  -  Energy balance  -  Engines  -  Hydraulic drives  -  Hydraulic equipment  -  Hydraulics  -  Internal combustion engines  -  Pumps  -  Smoke  -  Thermochemistry
  Uncontrolled terms:  Analysis  -  Energy balance analysis  -  Energy inputs  -  Energy transformations  -  Fuel combustions  -  Hydraulic energies  -  Hydraulic pumps  -  Hydraulic systems  -  Internal combustions  -  Piston engines   -  Power devices  -  Power outputs  -  Power ratios  -  Rotational speed  -  Working conditions
  Classification code:  632.1 Hydraulics  -  632.2 Hydraulic Equipment and Machinery  -  641.1 Thermodynamics  -  931 Classical Physics; Quantum Theory; Relativity  -  654.2 Rocket Engines  -  801.4 Physical Chemistry  -  804 Chemical Products Generally  -  801.3 Colloid Chemistry  -  618.2 Pumps  -  617.3 Steam Engines  -  451.1 Air Pollution Sources  -  521.1 Fuel Combustion  -  602.1 Mechanical Drives  -  612 Engines  -  612.1 Internal Combustion Engines, General  -  612.1.1 Internal Combustion Engine Components
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

261. Accession number:  20091512029398
  Title: Air velocity control and energy analysis in forced-air pre-cooling device of longan
  Authors: Yan, Guoqi1 ; Yang, Zhou1 ; Ma, Zheng2 
  Author affiliation: 1 Key Laboratory of Key Technology on Agricultural Machine and Equipment, South China Agricultural University, Guangzhou 510642, China
2 Department of Mechanical Electrical Engineering, Huizhou Industry Science and Technology School, Huizhou 516000, China
  Corresponding author:  Yang, Z. (yangzhou@scau.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  125-129
  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:  According to the characteristics of longan, a forced-air pre-cooling device of longan for test was designed. Based on 7/8 time of pre-cooling, the relationship between air velocity and pressure drop or voltage frequency w as obtained in test, and furthermore, the relationship between air velocity and energy was studied. The results show that the pre-cooling fan works more slowly, but costs a long time with a lower level of energy cost. In reality, a less time consuming method was needed. The method is controlling the increase of the air velocity with the decreased temperature of longan, the relationship between them was described, and the test proves the conclusion is reasonable.
  Number of references:  7
  Main heading:  Cooling
  Controlled terms:  Energy management  -  Velocity
  Uncontrolled terms: Air velocity  -  Energy costing  -  Forced-air pre-cooling  -  Frequency control  -  Longan
  Classification code:  525 Energy Management and Conversion  -  641.2 Heat Transfer  -  802.3 Chemical Operations  -  931.1 Mechanics
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

270. Accession number:  20091512029376
  Title:  Key technologies of auto-body interior layout with case-based reasoning
  Authors:  Li, Di1 ; Xu, Jiachuan1 ; Liu, Yuanyuan1 
  Author affiliation: 1 School of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255049, China
  Corresponding author:  Li, D. (halimuzi@163.com) 
  Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  26-30
  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 characteristic of auto-body interior layout, the object-oriented case presentation models of auto-body interior layout were presented by employing the extended object model, in which the index and solution objects were appended. Constraints of auto-body interior layout were divided into three forms: domain, rule and formulation, and their definitions were described with object models. The nearest neighborhood method was adopted for case retrieval. The strategies for case adaptation, combining parameter substitution with constrain satisfaction, were presented to modify case solution. A test system was developed with UG and VC , and the application shows the validity and feasibility of the presented method.
  Number of references:  9
  Main heading:  Case based reasoning
  Controlled terms:  Steelmaking
  Uncontrolled terms:  Auto-body  -  Case adaptations  -  Case retrievals  -  Constraint satisfaction  -  Extended object models  -  Interior Layout  -  Key technologies  -  Nearest neighborhoods  -  Object models  -  Object-oriented   -  Presentation models  -  Test systems
  Classification code:  545.3 Steel  -  723.4 Artificial Intelligence  -  903.1 Information Sources and Analysis
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

 295. Accession number:  20091512029381
  Title: Simulation and experiment of temperature field on diesel engine cylinder head before and after enhancement of power
  Authors: Zhao, Weimao1 ; Zhang, Weizheng1 ; Yuan, Yanpeng1 ; Liu, Chang1 ; Xiang, Changhu1 
  Author affiliation: 1 School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081, China
  Corresponding author:  Zhao, W. (zhaowm@bit.edu.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  51-55
  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:  Performance simulations of one diesel engine were conducted before and after power enhancement respectively, so the boundary conditions of temperature field simulation were obtained, then 3-D steady state thermal analysis of the cylinder head was conducted with FEA software. The effect on heat transfer between boiling water and cylinder head were taken into account. And the experiment of measuring cylinder head's steady state temperature was made on a one-cylinder diesel engine, the results of simulation and experiment were compared. The rule of setting fire-deck's boundary condition, the relation between steady state temperature and the duty, the difference of temperature field between one-cylinder engine and multi-cylinder engine were obtained respectively.
  Number of references:  9
  Main heading:  Engine cylinders
  Controlled terms: Boundary conditions  -  Computer software  -  Cylinders (shapes)  -  Diesel engines  -  Engines  -  Experiments  -  Thermoanalysis
  Uncontrolled terms:  Before and after  -  Boiling waters  -  Cylinder engines  -  Cylinder head  -  Diesel engine cylinders  -  FEA  -  Fea softwares  -  Multi-cylinder engines  -  Performance simulations  -  Power enhancements   -  Steady-state temperatures  -  Steady-state thermal analysis  -  Temperature field  -  Temperature field simulations
  Classification code:  901.3 Engineering Research  -  801 Chemistry  -  723 Computer Software, Data Handling and Applications  -  654.2 Rocket Engines  -  921 Mathematics  -  617.3 Steam Engines  -  612.1.1 Internal Combustion Engine Components  -  612 Engines  -  408.2 Structural Members and Shapes  -  612.2 Diesel Engines
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

296. Accession number:  20091512029417
  Title: Comparative researches on high-speed solenoids of conical pole and planar pole
  Authors:  Man, Jun1 ; Ding, Fan1 ; Li, Qipeng1, 2 ; Cui, Jian1 ; Li, Yong1 
  Author affiliation: 1 State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China
2 School of Mechanical and Automotive Engineering, Zhejiang University of Science and Technology, Hangzhou 310027, China
  Corresponding author: Ding, F. (fding@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:  3
  Issue date:  March 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:  This paper explored dynamic characteristics of high-speed solenoids considering both attraction and release processes, while the present research was generally limited to the attraction process. An electric-magnet-mechanic coupling dynamic mathematic model of high-speed solenoids was established, and an incremental equation for the dynamic force was derived and analyzed which proved that the dynamic characteristics could be obtained indirectly from the static characteristics. Experiments and simulations of conical pole and planar pole high-speed solenoids were carried out with varied structural parameters respectively. And the comparison of dynamic characteristics of two solenoids indicates their suitable application ranges. The research results provide an effective reference for engineering design of high-speed solenoid.
  Number of references:  9
  Main heading:  Mathematical models
  Controlled terms: Computer simulation-Engineering research- Poles - Solenoids - Speed
  Uncontrolled terms:  Application ranges  -  Comparative researches  -  Conical pole  -  Coupling dynamics  -  Dynamic characteristics  -  Dynamic forces  -  Engineering designs  -  High-speed solenoid  -  Incremental equations  -  Mathematic models   -  Planar pole  -  Release process  -  Research results  -  Static characteristics  -  Structural parameters
  Classification code:  408.2 Structural Members and Shapes  -  704.1 Electric Components  -  723.5 Computer Applications  -  901.3 Engineering Research  -  921 Mathematics  -  931.1 Mechanics
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

306. Accession number:  20091512029412
  Title: Simulation of CNC system dynamic performance based on net theory
  Authors:  Zhao, Li1 ; Wang, Taiyong1 ; Hu, Shiguang1 
  Author affiliation: 1 School of Mechanical Engineering, Tianjin University, Tianjin 300072, China
  Corresponding author:  Zhao, L. (leafyeva@yahoo.cn) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  189-193
  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:  In order to check the realizability of CNC system runtime logic and performance, technology of system dynamic modeling and analyzing based on net theory was introduced. A strategy of conditional equal-transformation of TTPN with inhibitor arc was proposed, which will descend the model dimension and decrease analyzing complexity. An analyzing model of the system motion control-associated processes was built, which was then transformed equivalently according to the foregoing strategy. With that model, a simulation was carried out and the quantitative basis for the system structure adjusting was given. Further simulation illustrates that the adjusted system is able to achieve expected performance.
  Number of references:  13
  Uncontrolled terms:  CNC system  -  Net theory  -  Realizability  -  Runtime  -  Simulation  -  System dynamics  -  System structures
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

 311. Accession number:  20091512029393
  Title: Determining spatial variability of water content and hardness in pastureland
  Authors: Cheng, Qiang1 ; Sun, Yurui1 ; Lin, Jianhui2 ; Zeng, Qingmeng1 ; Schulze, Lammers P3 ; Schellberg, J.4 
  Author affiliation: 1 College of Information and Electronic Engineering, China Agricultural University, Beijing 100083, China
　　　　　　　　　2 School of Technology, Beijing Forestry University, Beijing 100083, China
3 Department of Agricultural Engineering, University Bonn, Bonn 53115, Germany
4 Institute of Crop Science and Resource Conservation, University Bonn, Bonn 53115, Germany
  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:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  103-107 89
  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: As an extension in precision agriculture, it utilizes various high techniques to manage soil and water resources in pasture environment. However, the pastureland, which is different from arable field, does not allow the on-the-go survey with multi-sensor system because of the physical destruction in the field. This study used an innovated dual-sensor penetrometer together with a GPS receiver to collect the information of soil water content and hardness in a pastureland (1.27 hm2). To present the distribution of both parameters in field-scale, firstly, partial least squares (PLS) was employed to mend the set of raw data due to over-hard, and then Kriging interpolating method was used for digital mapping. Moreover, the spatial variability of each parameter associated with the correlation between water content and hardness was preliminary investigated.
  Number of references:  6
  Main heading:  Water resources
  Controlled terms:  Agriculture  -  Computer graphics  -  Curve fitting  -  Global positioning system  -  Hardness  -  Humidity control  -  Sensors  -  Soil moisture  -  Underwater soils  -  Water content
  Uncontrolled terms:  Arable fields  -  Correlation  -  Digital mappings  -  Dual sensors  -  Gps receivers  -  In fields  -  Kriging  -  Multi-sensor systems  -  Partial least squares  -  Pastureland   -  Precision agricultures  -  Soil water contents  -  Spatial variability
  Classification code:  801 Chemistry  -  821 Agricultural Equipment and Methods; Vegetation and Pest Control  -  921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory  -  732.2 Control Instrumentation  -  921.6 Numerical Methods  -  943.3 Special Purpose Instruments  -  951 Materials Science  -  922.2 Mathematical Statistics  -  723.5 Computer Applications  -  421 Strength of Building Materials; Mechanical Properties  -  444 Water Resources  -  471.1 Oceanography, General  -  402 Buildings and Towers  -  483.1 Soils and Soil Mechanics  -  655.2.1 Communication Satellites  -  716.3 Radio Systems and Equipment  -  643.3 Air Conditioning
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

312. Accession number:  20091512029419
  Title: Non-equalization machining method for conical cam with oscillating tapered roller follower
  Authors:  Chen, Junhua1, 2 ; Xin, Yong2 
  Author affiliation: 1 Institute of Mechanical and Electrical Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, China
2 Institute of Mechanical and Electrical Engineering, Nanchang University, Nanchang 330029, China
  Corresponding author:  Chen, J. (cjh@nit.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:  3
  Issue date:  March 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: This paper focuses on the analysis of running conditions and machining processes of conical cam with oscillating follower. Common errors were pointed out in the biased distance cutting. By analyzing the motion of oscillating tapered roller follower of conical cam, a new "3-D curve expansion" model of conical cam was presented trough-outline. Based on this model, a machining method for trochoidal milling was proposed with non-equalization diameter cutter. This new method is a creative and effective way for non-equalization diameter machining for conical cam with oscillating tapered roller follower.
  Number of references:  11
  Main heading:  Machining
  Controlled terms: Cams  -  Cutting  -  Rollers (machine components)  -  Three dimensional
  Uncontrolled terms:  3-D expansion  -  Conical cam  -  Non-equalization diameter machining  -  Oscillating follower  -  Tapered roller
  Classification code:  902.1 Engineering Graphics  -  723.5 Computer Applications  -  606.2 Abrasive Devices and Processes  -  604.2 Machining Operations  -  604.1 Metal Cutting  -  601.3 Mechanisms  -  601.2 Machine Components
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

313. Accession number:  20091512029402
  Title:  Application of subband feature of poultry vocalization for identifying their status
  Authors:  Li, Zhizhong1 ; Teng, Guanghui1 
  Author affiliation: 1 Key Laboratory of Agricultural Bioenvironmental Engineering, China Agricultural University, Beijing 100083, China
  Corresponding author:  Teng, G. (futong@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:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  143-146
  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:  Animal's welfare can be feed back from their vocalism. Some experiments were con ducted to get 35-day-old chicken's vocalization in different environments, including normal environment, light off environment and human disturbance environment. Based on Mel frequency cepstral coefficient (MFCC), a new algorithm for feature extraction-subband Mel spectrum centroid (SMSC) was adopted. Support vector machine (SVM) classification model was used to evaluate the performance of test using different sound parameters. The results show the accuracy of recognition of SMSC was 24% more than MFCC parameter.
  Number of references:  10
  Main heading:  Feature extraction
  Controlled terms:  Support vector machines
  Uncontrolled terms:  Classification models  -  Feed backs  -  Human disturbances  -  Light offs  -  Mel-frequency cepstral coefficients  -  Poultry  -  Subband Mel spectrum centroid
  Classification code:  716 Telecommunication; Radar, Radio and Television  -  723 Computer Software, Data Handling and Applications  -  723.5 Computer Applications  -  741.1 Light/Optics  -  751.1 Acoustic Waves
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

314. Accession number:  20091512029418
  Title:  Algorithm of NC tool path generation for triangular meshing subdivision surface
  Authors:  Sun, Dianzhu1 ; Fan, Shuxin1 ; 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:  3
  Issue date:  March 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:  An algorithm of NC tool path generation for triangular meshing subdivision surface was proposed, which included three steps: first, the tool touching points were obtained through computing the intersection between the meshing model and the section based on the spatial index structure of triangular mesh subdivision surface; second, the cutter location points were generated according to the geometric properties on differential calculus of surface position corresponding to tool touching points; third, the cutter location points were ordered by using the minimum spanning tree algorithm, and which is proved that the algorithm can improve the efficiency of NC tool path generation and process precision effectively.
  Number of references:  7
  Main heading:  Mesh generation
  Controlled terms:  Algorithms  -  Differentiation (calculus)  -  Scanning  -  Surface analysis  -  Trees (mathematics)
  Uncontrolled terms:  Cutter locations  -  Geometric properties  -  Meshing models  -  Minimum spanning trees  -  NC tool path generation  -  Spatial index structures  -  Subdivision surface  -  Surface positions  -  Touching points  -  Triangular mesh surface
  Classification code:  951 Materials Science  -  931.2 Physical Properties of Gases, Liquids and Solids  -  921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory  -  921.2 Calculus  -  921 Mathematics  -  741.3 Optical Devices and Systems  -  723.5 Computer Applications  -  723 Computer Software, Data Handling and Applications  -  423 Non Mechanical Properties and Tests of Building Materials
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

315. Accession number:  20091512029410
  Title: Corn breed recognition based on support vector machine
  Authors: Cheng, Hong1 ; Shi, Zhixing1 ; Yao, Wei1 ; Wang, Lei1 ; Pang, Lixin2 
  Author affiliation: 1 College of Information Science and Technology, Agricultural University of Hebei, Baoding 071001, China
2 Modern Education and Technology Centre, Agricultural University of Hebei, Baoding 071001, China
  Corresponding author:  Shi, Z. (SZX540105@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:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  180-183
  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: Corn varieties Zhengdan958, Liaodan565 and Jingke25 were selected as the research objects. Six general characteristics about color, shape and size were picked up from the digital image of corn seed. Support vector machine (SVM) was used to recognize, and the results were compared with neural network (NN) algorithm. The results indicate that the identification rate of SVM strategy is 92.3%.
  Number of references:  8
  Main heading:  Support vector machines
  Controlled terms:  Image retrieval  -  Neural networks  -  Vectors
  Uncontrolled terms:  Breed  -  Corn  -  Image prosessing  -  Recognition  -  Support vector machine
  Classification code:  461.1 Biomedical Engineering  -  723 Computer Software, Data Handling and Applications  -  723.2 Data Processing and Image Processing  -  723.4 Artificial Intelligence  -  741 Light, Optics and Optical Devices  -  921.1 Algebra
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.

 322. Accession number:  20091512029391
  Title: Design of performance measuring system for agricultural products processing machine
  Authors: Wang, Zhijun1 ; Xie, Fangping2 ; Sun, Songlin2 
  Author affiliation: 1 Hu'nan Agricultural Engineering Research Institute, Changsha 410004, China
2 College of Engineering, Hu'nan Agricultural University, Changsha 410128, China
  Corresponding author:  Wang, Z. (wzj476@126.com) 
  Source title:  Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:  Nongye Jixie Xuebao
  Volume:  40
  Issue:  3
  Issue date:  March 2009
  Publication year:  2009
  Pages:  93-98
  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 performance measuring system of agricultural products processing machine for testing the mechanical performance of rice mill and hammer mill was designed. The measuring system was designed based on mechanical devices, took an industrial control computer as host computer, PLC as main control unit and Kingview 6.5 as software development platform for IPC. It can measure in real time and display data of transducers of the measuring system. The system can analyze, process, display, output and store sampling data to get related main technical performance parameters of the tested machinery accurately and quickly. By performing experiment al test and metrology verification, it is demonstrated that the system runs steadily and every specified control function has been implemented reliably. It should be highlighted that the measuring accuracies of mass, power and temperature a re higher than the design demand by 0.5%, 1.5% and ±1°C, respectively.
  Number of references:  10
  Main heading:  Agricultural machinery
  Controlled terms: Agricultural products  -  Concurrency control  -  Machine design  -  Measurement theory
  Uncontrolled terms:  Control functions  -  Control units  -  Design demands  -  Hammer mills  -  Host computers  -  Industrial control computers  -  Measuring accuracies  -  Measuring system  -  Mechanical devices  -  Mechanical performance   -  Performance  -  Processing machine  -  Real time  -  Rice mills  -  Sampling datum  -  Software development  -  Technical performance
  Classification code:  601 Mechanical Design  -  723.3 Database Systems  -  731.3 Specific Variables Control  -  821.1 Agricultural Machinery and Equipment  -  821.4 Agricultural Products  -  922 Statistical Methods
  Database:  Compendex
  Compilation and indexing terms, ? 2009 Elsevier Inc.