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2012年第43卷第6期共收錄41篇
1. Accession number:20122915260059
  Title:Process designing method of reconfigurable manufacturing for part family
  Authors:Zhang, Guangpeng1 ; Hu, Xudong1 ; Zhang, Xinyuan1 ; Peng, Lili1 
  Author affiliation:1  School of Mechanical Instrumental Engineering, Xi'an University of Technology, Xi'an 710048, China
  Corresponding author:Zhang, G. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:188-194 206
  Language:Chinese
  ISSN:10001298
  CODEN:NUYCA3
  Document type:Journal article (JA)
  Publisher:Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract:Reconfigurable manufacturing process design was combined with characteristics of reconfigurable machine tools. Beginning with the proposed process unit and process section, the processing information matrix was built through the processing information formulation. Then the processing unit was established and the division method of process section was proposed. Through the cross two-way method, a variety of process schemes which meet the reconfigurable manufacturing requirements were obtained. Based on the similarity judgment model of processing plan, the reasonable processing schemes for the reconfiguration of reconfigurable machine tools were found out, which provided scientific basis for realizing the manufacturing flexibility in part family. Finally, an example of processing design for the cylinder front covers family was given to verify the validity of the proposed processing method.
  Number of references:7
  Main heading:Processing
  Controlled terms:Industrial engineering  -  Machine tools  -  Process design  -  Production engineering
  Uncontrolled terms:Designing methods  -  Information matrix  -  Manufacturing flexibility  -  Part family  -  Process schemes  -  Process unit  -  Processing design  -  Processing method  -  Processing units  -  Reconfigurable machine tool   -  Reconfigurable manufacturing
  Classification code:603.1 Machine Tools, General  -  912.1 Industrial Engineering  -  913.1 Production Engineering  -  913.4 Manufacturing
  DOI:10.6041/j.issn.1000-1298.2012.06.034
  Database:Compendex

2. Accession number:20122915260065
  Title:Profile reconstruction of spatial indexing cam and simulation based on NURBS
  Authors:Xuan, Guantao1 ; Shao, Yuanyuan1 ; Lü, Zhaoqin1 ; Feng, Xianying2 
  Author affiliation:1  Mechanical and Electronic Engineering College, Shandong Agricultural University, Taian 271018, China
                 2  School of Mechanical Engineering, Shandong University, Ji'nan 250061, China
  Corresponding author:Lü, Z. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:226-229 234
  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 construct the spatial cam parametric feature model efficiently and accurately, discrete point cloud data were obtained by profile equation of spatial cam. Non-uniform rational B-splines (NURBS) was adopted to reconstruct the profile of spatial cam. Based on the parametric feature model, the spatial cam indexing mechanism was set up to perform kinematics simulation, and then the manufacturing model was generated to simulate the spatial cam NC machining. Finally, the spatial cam was machined on four-axis CNC machining center by NURBS interpolation method. The results showed the follower motion curves (the maximum velocity and acceleration) were smoother than modified-sine curves. The profile machining error related to the processing route curvature, the maximum was not more than 0.01 mm and located in the maximum of the absolute curvature. Profile reconstruction based on NURBS was liable and effective for design and machining of spatial cam.
  Number of references:10
  Main heading:Interpolation
  Controlled terms:Computer simulation  -  Industrial applications
  Uncontrolled terms:CNC machining centers  -  Discrete points  -  Feature models  -  Indexing mechanisms  -  Kinematics simulation  -  Machining error  -  Manufacturing models  -  Maximum velocity  -  Motion curve  -  NC-machining   -  Non-uniform rational B-splines  -  NURBS  -  NURBS interpolation  -  Processing Route  -  Profile equation  -  Profile Reconstruction  -  Simulation  -  Spatial cams  -  Spatial indexing
  Classification code:723.5 Computer Applications  -  913 Production Planning and Control; Manufacturing  -  921.6 Numerical Methods
  DOI:10.6041/j.issn.1000-1298.2012.06.040
  Database:Compendex

3. Accession number:20122915260030
  Title:Design of control signal reliability for hybrid vehicle electronic shift handle
  Authors:Wang, Dongping1 ; Li, Shunming1 ; Wei, Minxiang1 ; Yu, Haisheng2 
  Author affiliation:1  College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
                  2  Shanghai Maple Automobile Co., Ltd., Shanghai 201501, China
  Corresponding author:Wang, D. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:25-29
  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 control reliability requirement of hybrid vehicle electronic shift handle signal, based on analyzing the structure and signal control logic of the handle, the reliable control method was designed by signal processing and strategy redundancy algorithm. Through the establishment of the system control model with Simulink and the usage of rapid control prototyping approach with MotoTron, the control method of the shift handle signal was tested to verify its reliability. Test results showed that the control method could meet the shifting demand for hybrid vehicle, and the control reliability of the shift handle signal and traffic safety could be ensured.
  Number of references:11
  Main heading:Redundancy
  Controlled terms:Hybrid vehicles  -  Land vehicle propulsion  -  Signal processing  -  Traffic control
  Uncontrolled terms:Control methods  -  Control signal  -  Electronic shifts  -  Handle  -  Rapid control prototyping  -  Redundancy algorithm  -  Reliability design  -  Reliable control  -  Signal control logic  -  Simulink   -  System control model  -  Traffic safety  -  Vehicle electronics
  Classification code:432 Highway Transportation  -  432.4 Highway Traffic Control  -  682.1.2 Locomotives  -  716.1 Information Theory and Signal Processing  -  903 Information Science  -  914 Safety Engineering
  DOI:10.6041/j.issn.1000-1298.2012.06.005
  Database:Compendex

4. Accession number:20122915260040
  Title:Optimal design and experiment of automatic sequencing device for culture bottles
  Authors:Yang, Li1 ; Wang, Liangju1 ; Zhang, Tiezhong1  
  Author affiliation:1  College of Engineering, China Agricultural University, Beijing 100083, China
  Corresponding author:Zhang, T. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:79-85
  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 problem of requiring a large number of labors for transporting culture bottles during the micropropagation period of tissue culture plantlets, a kind of automatic device for lining up culture bottles was designed. The automatic device transported bottles by using two conveyer belts which had opposite motion directions, and guided, assembled and separated bottles by using guiding board, guiding block and separating block respectively. The main factors which influenced sequencing speed and reliability were guiding belt speed v1, separating belt speed v2, dip angle α of guiding board and wedge angle β of guiding block. The sequencing speed and reliability were satisfactory with v1=0.25 m/s, v2=0.4 m/s, α=47° and β=35°. Experiment results showed that the device could sequence automatically different size and shape bottles which were used frequently in plant tissue culture production and the sequencing reliability was more than 94%. The sequencing speed was nearly equal and the reliability was different while lining up bottles with same diameter and different shapes, because the bottles with less mass and lower center of gravity were easier to be lined up. Bigger bottles were easier to be sequenced than smaller ones while lining up bottles with same shape and different diameters.
  Number of references:13
  Main heading:Bottles
  Controlled terms:Belt conveyors  -  Experiments  -  Gravitation  -  Linings  -  Reliability  -  Speed  -  Tissue culture
  Uncontrolled terms:Automatic device  -  Backtrack  -  Center of gravity  -  Conveyer belts  -  Different shapes  -  Different sizes  -  Dip angle  -  Micropropagation  -  Motion direction  -  Optimal design   -  Plant tissue culture  -  Plantlets  -  Sequencing device  -  Wedge angle
  Classification code:931.5 Gravitation, Relativity and String Theory  -  931.1 Mechanics  -  901.3 Engineering Research  -  951 Materials Science  -  694.2 Packaging Materials  -  461.2 Biological Materials and Tissue Engineering  -  421 Strength of Building Materials; Mechanical Properties  -  692.1 Conveyors
  DOI:10.6041/j.issn.1000-1298.2012.06.015
  Database:Compendex

5. Accession number:20122915260031
  Title:Torque control method of multi-parameter integrated for IPMSM in vehicle
  Authors:Wu, Zhihong1 ; Wu, Sibei1 ; Zhu, Yuan2 ; Tian, Guangyu3 
  Author affiliation:1  School of Automotive Studies, Tongji University, Shanghai 201804, China
                 2  Chinese-German School for Postgraduate Studies, Tongji University, Shanghai 200092, China
                 3  State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China
  Corresponding author:Wu, Z. (Zhihong.wu@#edu.cn) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:30-34
  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-parameter integrated control method was proposed. Multi-parameter variation's characteristics were integrated into one parameter to update the control parameters of torque algorithm real-timely. This multi-parameter integrated method was on the base of all states experiment of the motor and online search. It made full account of multi-parameter's nonlinear behavior. Experimental results verified that not only the precise torque control of maximum torque-per-ampere in the low speed, but also the precise torque control in the flux-weakening of high speed were carried out, which met the requirements of the electric vehicle applications.
  Number of references:11
  Main heading:Parameter estimation
  Controlled terms:Electric vehicles  -  Integrated control  -  Saturation magnetization  -  Torque control
  Uncontrolled terms:Control parameters  -  Flux weakening  -  In-vehicle  -  Integrated method  -  IPMSM  -  Low speed  -  Multiparameters  -  Nonlinear behavior  -  Online compensation  -  Online search   -  Vehicle applications
  Classification code:432 Highway Transportation  -  714.2 Semiconductor Devices and Integrated Circuits  -  731.1 Control Systems  -  731.3 Specific Variables Control
  DOI:10.6041/j.issn.1000-1298.2012.06.006
  Database:Compendex

6. Accession number:20122915260056
  Title:Moisture content measurement for plant material powder based on capacitive humidity sensor
  Authors:Ge, Zhenyang1 ; Yu, Yingjie1 ; Zhang, Mengzhu1 
  Author affiliation:1  Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650500, China
  Corresponding author:Ge, Z. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:174-177
  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 measuring moisture content for plant material powder based on HM1520LF capacitive humidity sensor was introduced. The raw data sequence of moisture content was acquired by measurement system which consists of capacitive humidity sensor and data acquisition card. After excluding alternative singular by one rank difference method, inertia filtering method was employed to process the data sequence. By accordingly comparing 13 measured values of moisture content with corresponding true values from the baking oven, the maximal relative error of moisture content between measured values and true values was 1.61%, and the average relative error was 0.76%, both less than 5% (confidence interval 95% for 5 samples). As a result, the method can be used to determine the low moisture content of plant material powder.
  Number of references:8
  Main heading:Moisture determination
  Controlled terms:Humidity sensors  -  Moisture
  Uncontrolled terms:Average relative error  -  Baking oven  -  Capacitive humidity sensors  -  Confidence interval  -  Data acquisition cards  -  Data sequences  -  Filtering method  -  Measurement system  -  Moisture content measurement  -  Plant material   -  Powder-based  -  Rank differences  -  Relative errors
  Classification code:643 Space Heating, Ventilation and Air Conditioning  -  732 Control Devices  -  801.4 Physical Chemistry  -  944.2 Moisture Measurements
  DOI:10.6041/j.issn.1000-1298.2012.06.031
  Database:Compendex

7. Accession number:20122915260057
  Title:Centralized remote monitoring system for bred fish in offshore aquaculture cage
  Authors:Zhang, Xiaokang1 ; Xu, Xiaomei1 ; Peng, Yangming1 ; Hong, Huasheng1 
  Author affiliation:1  Key Laboratory of Underwater Acoustic Communication and Marine Information Technology, Ministry of Education, Xiamen University, Xiamen 361005, China
  Corresponding author:Xu, X. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:178-182 187
  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 monitor the aquatic environment and fish state in offshore aquaculture cage farm daily, a centralized remote monitoring system for bred fish was developed. The system was composed of remote detecting node (RDN) and local monitor and control center (LMCC). RDN based on the techniques of multi-beam detection and multi-path signal process was placed in the center of a cage to scan the inner cage and measure the aquatic environment. LMCC based on LabVIEW was placed in the office to manage all the remote detecting nodes remotely and show fish state. The communication between LMCC and RDN depended on GPRS wireless data transmission technology. The system prototype was tested in the field of offshore aquaculture cage farm in Quanzhou, Fujian province. The results show that the system is reasonable design, simple operation, easy placement, and robust under different environmental conditions. It can real-time monitor the aquatic environment and fish activity remotely, provide users with a variety of information such as fish amount, fish growth in the offshore fish cage, and give an alarm in the time when net clothing damage or fish escape.
  Number of references:9
  Main heading:Fish
  Controlled terms:Aquaculture  -  Monitoring  -  Remote control  -  Signal processing
  Uncontrolled terms:Aquatic environments  -  Environmental conditions  -  Fujian Province  -  LabViEW  -  Monitor and control  -  Offshore aquaculture  -  Offshore fish cage  -  Real-time monitor  -  Remote monitoring system  -  Signal process   -  Simple operation  -  System prototype  -  Virtual instrument  -  Wireless data transmission
  Classification code:943 Mechanical and Miscellaneous Measuring Instruments  -  942 Electric and Electronic Measuring Instruments  -  941 Acoustical and Optical Measuring Instruments  -  822 Food Technology  -  821.3 Agricultural Methods  -  944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments  -  821 Agricultural Equipment and Methods; Vegetation and Pest Control  -  716.1 Information Theory and Signal Processing  -  471.5 Sea as Source of Minerals and Food  -  471 Marine Science and Oceanography  -  461 Bioengineering and Biology  -  731.1 Control Systems
  DOI:10.6041/j.issn.1000-1298.2012.06.032
  Database:Compendex

8. Accession number:20122915260028
  Title:Dynamics research of hydraulic clamp traction transmission device
  Authors:Shen, Chujing1 ; Yuan, Shihua1 ; Wei, Chao1 ; Chen, Xing1 ; Liu, Hong1 
  Author affiliation:1  National Key Lab. of Vehicular Transmission, Beijing Institute of Technology, Beijing 100081, China
  Corresponding author:Yuan, S. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:15-18
  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 elasto-hydrodynamic lubrication theory was used for setting up transmission characteristics of traction calculation model. The dynamic simulation model of this system was established by using Matlab. From simulation results, traction friction pair was equivalent to traditional role of main gearbox or torque converter with a buffer function in the transmission process. When gave a input speed and a loading force, the smaller the speed ratio was, the greater the output speed was. But the time of achieving stabilization was longer at the same time, the response time of output torque and output angular acceleration was longer. The simulation results reflected the dynamics characteristic of traction transmission devices. It is provided an accurate method for hydraulic clamp traction transmission devices.
  Number of references:9
  Main heading:Dynamics
  Controlled terms:Computer simulation  -  MATLAB  -  Torque converters
  Uncontrolled terms:Angular acceleration  -  Buffer functions  -  Continuously variable transmission  -  Dynamics characteristic  -  Friction pair  -  Hydraulic clamps  -  Loading force  -  Output torque  -  Speed ratio  -  Traction calculation   -  Transmission characteristics
  Classification code:662.4 Automobile and Smaller Vehicle Components  -  723.5 Computer Applications  -  931.1 Mechanics
  DOI:10.6041/j.issn.1000-1298.2012.06.003
  Database:Compendex

9. Accession number:20122915260042
  Title:Behavior and kinetics analysis on chicken dung pyrolysis
  Authors:Jiang, Enchen1 ; Zhao, Chuang1 ; Xu, Xiwei1 ; Du, Yanhong1 ; Xiong, Leiming1 ; Chen, Liangguang1 
  Author affiliation:1  College of Engineering, South China Agricultural University, Guangzhou 510642, China
  Corresponding author:Jiang, E. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:92-96
  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 thermochemical characteristics and kinetics of chicken dung were studied on thermogravimetric apparatus at different heating rates. It was showed that five steps were included in the pyrolysis process of chicken dung: losing water, pre-pyrolysis, main pyrolysis, second pyrolysis and carbonization. As heating rate increased, the most weight loss rate increased greatly, and the characteristic temperature became higher. With Malek method, reaction model could be determined, which indicated that pyrolysis mechanism of chicken dung was random nucleation and later growth. As the activation energy and frequency factor were estimated by bringing into pyrolysis reaction, the results were similar with the consequence calculated by Ozawa method, which showed that activation energy E was 180.83 kJ/mol, frequency factor lgA was 14.27 s-1 and activation series n was 1/3. By conventional pyrolysis experiment and analyzing the solids product ratio at the certain temperature, the result was in accordance with the residual carbon from TG test, which proved that result from TG test was reliable.
  Number of references:17
  Main heading:Animals
  Controlled terms:Activation energy  -  Carbonization  -  Experiments  -  Heating rate  -  Kinetics  -  Machinery
  Uncontrolled terms:Activation energy E  -  Characteristic temperature  -  Chicken dung  -  Frequency factors  -  Kinetic analysis  -  Kinetics analysis  -  Mechanisation  -  Ozawa method  -  Product ratios  -  Pyrolysis mechanism   -  Pyrolysis process  -  Pyrolysis reaction  -  Random nucleation  -  Reaction model  -  Residual carbon  -  Thermochemical characteristics  -  Thermogravimetric apparatus  -  Weight loss rates
  Classification code:931.3 Atomic and Molecular Physics  -  931 Classical Physics; Quantum Theory; Relativity  -  901.3 Engineering Research  -  822 Food Technology  -  821 Agricultural Equipment and Methods; Vegetation and Pest Control  -  814 Leather and Tanning  -  641.2 Heat Transfer  -  601 Mechanical Design  -  471 Marine Science and Oceanography  -  461 Bioengineering and Biology  -  445.1 Water Treatment Techniques
  DOI:10.6041/j.issn.1000-1298.2012.06.017
  Database:Compendex

10. Accession number:20122915260037
  Title:Analysis on trafficability of 3WZ-700 orchard sprayer
  Authors:Qiu, Wei1 ; Ding, Weimin1 ; Shen, Baoying1 ; Shi, Qingchun1 ; Wan, Nancheng1 ; Gu, Jiabing1 
  Author affiliation:1  Key Laboratory of Intelligent Agricultural Equipment in Jiangsu Province, Nanjing Agricultural University, Nanjing 210031, China
  Corresponding author:Ding, W. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:63-67 146
  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:According to modern orchard planting pattern and dynamic center of gravity of orchard sprayer, a mathematical model was established by theoretical calculation and test. The trafficability of large carton orchard sprayer was analyzed. The obstacle height curve with dosage was obtained. In the dosage range of 0~200 L, the front wheels crossed obstacles reduced from the 200 mm to 84 mm. In the dosage range of 200~400 L, the front wheels crossed obstacles reduced from the 84 mm to 53 mm. Rear wheel obstacle height was independent of machine parameters. Experimental were consistent with theoretical calculations. The results showed that the sprayer had outstanding trafficability in orchard.
  Number of references:19
  Main heading:Orchards
  Controlled terms:Experiments  -  Mathematical models  -  Vehicles  -  Wheels
  Uncontrolled terms:Center of gravity  -  Cross obstacles  -  Front wheels  -  Machine parameters  -  Rear wheels  -  Theoretical calculations  -  Trafficability
  Classification code:432 Highway Transportation  -  601.2 Machine Components  -  821.3 Agricultural Methods  -  901.3 Engineering Research  -  921 Mathematics
  DOI:10.6041/j.issn.1000-1298.2012.06.012
  Database:Compendex

11. Accession number:20122915260046
  Title:Design of automatic orientation system of blunt and tip sides of eggs
  Authors:Jiang, Song1 ; Wang, Guojiang1 ; Qi, Hong1 ; Lü, Riqin1 ; Zhu, Ting1 ; Jiang, Yuxiang1 
  Author affiliation:1  School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
  Corresponding author:Jiang, S. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:113-117
  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 ensure the consistency in the direction of fresh eggs under package, a device for automatic orientation of the blunt and tip sides of eggs, which is composed of the roller delivery system, veering system and regulator drive system was developed. Based on the principles of mechanical transmission, the design methods for the axial motion and the oriented roll were established, also the construction parameters of the device were determined. The experimental results showed that the axial motion of eggs was stable. The roll over the length was fluent and the attitude was reliable, besides. The accuracy of the orientation was 100%. The egg-orientation speed of the device in single channel was 0.87~1.22 eggs per second. The nominal egg-orientation speed (in two channels) was 7200 eggs per hour.
  Number of references:13
  Main heading:Design
  Controlled terms:Agricultural engineering  -  Mechanical engineering
  Uncontrolled terms:Automatic direction  -  Axial motions  -  Construction parameter  -  Delivery systems  -  Design method  -  Device  -  Drive systems  -  Eggs  -  Mechanical transmission  -  Single channels   -  Two channel
  Classification code:408 Structural Design  -  608 Mechanical Engineering, General  -  821 Agricultural Equipment and Methods; Vegetation and Pest Control
  DOI:10.6041/j.issn.1000-1298.2012.06.021
  Database:Compendex

12. Accession number:20122915260044
  Title:Modeling of moisture balance during pig slurry reactor composting
  Authors:Wang, Yongjiang1 ; Huang, Guangqun1 ; Han, Lujia1  
  Author affiliation:1  College of Engineering, China Agricultural University, Beijing 100083, China
  Corresponding author:Han, L. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:102-106
  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:Simulation models regarding moisture content were developed respectively by law of conversation of mass and first order assumption with respect to the quality of moisture content. Approaches by law of conversation of mass to moisture content prediction was based on an analysis of biologically produced water, exit gas content and inlet air content, with the biological water estimated from yield factors based on biodegradable volatile solid degradation. The other approach to moisture content prediction based on first order moisture evaporation kinetics was developed by an analysis of composting pile moisture content and aeration rate. An aerobic composting process of pig slurry and wheat straw was conducted in order to verify the models constructed. The experimental results showed that modeling results gave good accuracy, and the relative standard error of law of conservation of mass model and first order assumption model were respectively 8.01% and 8.86%.
  Number of references:20
  Main heading:Factor analysis
  Controlled terms:Computer simulation  -  Degradation  -  Mathematical models  -  Moisture  -  Moisture determination  -  Piles  -  Slurry pipelines
  Uncontrolled terms:Aeration rate  -  Aerobic composting  -  Biological water  -  Composting piles  -  Conservation of mass  -  First order  -  Gas content  -  Inlet air  -  Modeling results  -  Moisture balance   -  Moisture evaporation  -  Pig slurries  -  Prediction-based  -  Produced water  -  Relative standard error  -  Volatile solid  -  Wheat straws
  Classification code:922.2 Mathematical Statistics  -  921 Mathematics  -  802.2 Chemical Reactions  -  944.2 Moisture Measurements  -  801.4 Physical Chemistry  -  723.5 Computer Applications  -  408.2 Structural Members and Shapes  -  801.3 Colloid Chemistry
  DOI:10.6041/j.issn.1000-1298.2012.06.019
  Database:Compendex

13. Accession number:20122915260027
  Title:Power flow experiment and analysis of driving states on six-wheel electric drive articulated vehicle
  Authors:Zhong, Heng1 ; Chen, Shuxin1 
  Author affiliation:1  School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China
  Corresponding author:Zhong, H. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:8-14
  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 qualitative analysis of system power flow was made for articulated vehicle which had six independently-electric-driving wheels running in parallel under different driving states without following control. The system power flow model and wheel-motor power matrix were established. System power flow was described by using power bond graph and normalized power matrix. Taking torque as the control target, the test was performed to simulate the power flow state of permanent magnet synchronous motors running in parallel by means of adjusting voltage. Test analysis showed that the traction and braking power of the wheel-motor on both sides were equal when driving and electric braking straightly. The outside wheel-motors ran into regeneration state and produced braking torque when steering angle was large, then inside wheel-motors' load were aggravating and theirs slip ratio increased. Speed ratio kn increased with the increasing of steering angle, but power ratio kP decreased at the same time. The severity of load had little effect on kn, Torque ratio kT of the rear axle was larger than the front axle and overload state was larger than light load state.
  Number of references:10
  Main heading:Vehicle wheels
  Controlled terms:Automobile steering equipment  -  Braking  -  Electric drives  -  Electric traction  -  Graph theory  -  Steering  -  Synchronous motors
  Uncontrolled terms:Articulated vehicle  -  Bond graph  -  Braking torque  -  Control target  -  Driving state  -  Electric braking  -  Following control  -  Light loads  -  Permanent Magnet Synchronous Motor  -  Power flow model   -  Power flows  -  Power matrix  -  Power ratio  -  Qualitative analysis  -  Running-in  -  Six-wheeled independently-driving  -  Slip ratio  -  Speed ratio  -  Steering angles  -  Test analysis
  Classification code:601.2 Machine Components  -  602 Mechanical Drives and Transmissions  -  663.2 Heavy Duty Motor Vehicle Components  -  705 Electric Generators and Motors  -  705.3.1 AC Motors  -  921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory
  Database:Compendex

14. Accession number:20122915260055
  Title:Image segmentation algorithm for overlapping fruits based on disparity map
  Authors:Peng, Hui1 ; Wu, Pengfei1 ; Zhai, Ruifang2 ; Liu, Shanmei1 ; Wu, Lanlan3 ; Jing, Xiu1  
  Author affiliation:1  College of Science, Huazhong Agricultural University, Wuhan 430070, China
                 2  Institute of Computer Application, Huazhong Agricultural University, Wuhan 430070, China
                 3  College of Engineering, Huazhong Agricultural University, Wuhan 430070, China
  Corresponding author:Jing, X. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:167-173
  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 problem of segmentation for overlapping fruits, an image segmentation algorithm based on disparity map was developed. Firstly, binocular stereo images were obtained by binocular stereo vision system. Then, these images were preprocessed and rectified. Thirdly, stereo matching for rectified images pair to get disparity values for every pixel was made. At last, the disparity map was generated. Distance information in 3-D space was added to algorithm besides color, shape and texture information in 2-D space, so the fruits with different distances in actual space were segmented better in disparity map than in normal image. Experimental results showed that the accuracy of segmentation for disparity map by area-based method was 0.90, and the edge detection error was 5.74%. The proposed method was valid for segmentation of overlapping fruits.
  Number of references:12
  Main heading:Image matching
  Controlled terms:Edge detection  -  Fruits  -  Image segmentation  -  Image texture  -  Three dimensional
  Uncontrolled terms:2-D space  -  3-D space  -  Area-based  -  Binocular stereo  -  Binocular stereo vision  -  Binocular stereo vision system  -  Detection error  -  Disparity map  -  Distance information  -  Image segmentation algorithm   -  Stereo matching  -  Texture information
  Classification code:716 Telecommunication; Radar, Radio and Television  -  723.2 Data Processing and Image Processing  -  723.5 Computer Applications  -  821.4 Agricultural Products
  DOI:10.6041/j.issn.1000-1298.2012.06.030
  Database:Compendex

15. Accession number:20122915260050
  Title:Fermentation and aroma analysis of Jingbai pear wine
  Authors:Song, Jian1 ; Li, Demei2 ; Deng, Xiaoming1 ; Zhang, Lihua3 ; Chen, Shangwu1 ; Ma, Huiqin4 
  Author affiliation:1  College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
                2  Food Science and Engineering College, Beijing University of Agriculture, Beijing 102206, China
                3  Limin-Henghua Agriculture Science and Technology Co., Ltd., Beijing 102488, China
                4  College of Agriculture and Biotechnology, China Agricultural University, Beijing 100094, China
  Corresponding author:Chen, S. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:133-138 132
  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 aromatic compounds in perry were evaluated by combining SPME with GC-MS and GC-O methods on the basis of fermentation in Jingbai pear. Before fermentation, the sugar degree of Jingbai pear juice was adjusted by pear juice concentrate, granulated sugar and autumn pear grease separately. It was confirmed that pear wine adjusted to 16°Brix by granulated sugar, gained the best sensory quality and more affluent volatile components, comparing to the raw juice and pomace. The Jingbai pear wine pilot scale fermentation was carried on based on the laboratory parameters. The key aroma components included 1-butanol, 3-methyl-, acetate; hexanoic acid, ethyl ester; acetic acid, hexyl ester; octanoic acid, methyl ester; butanedioic acid, diethyl ester; octanoic acid, ethyl ester; acetic acid, 2-phenylethyl ester; ethyl 9-decenoate; decanoic acid, ethyl ester; 1-butanol, 3-methyl-; 1-hexanol; phenylethyl alcohol; 3-buten-2-one, 4-(2, 6, 6-trimethyl-2-cyclohexen-1-yl). These aroma components were compared in different pear wines. The results illustrated a new way for the quality Jingbai pear wine improvement through the fermentation by different perspectives on the analysis of aroma components.
  Number of references:26
  Main heading:Quality control
  Controlled terms:Acetic acid  -  Alcohols  -  Aromatic compounds  -  Esterification  -  Esters  -  Fermentation  -  Fruit juices  -  Fruits  -  Mass spectrometry  -  pH   -  Saturated fatty acids  -  Sugars  -  Wine
  Uncontrolled terms:1-butanol  -  1-hexanol  -  Aroma components  -  Butanedioic acid  -  Decanoic acid  -  Diethyl ester  -  Ethyl esters  -  Hexanoic acids  -  Methyl esters  -  Octanoic acids   -  Pilot scale  -  Sensory qualities  -  Solid-phase  -  Volatile components
  Classification code:913.3 Quality Assurance and Control  -  822.3 Food Products  -  821.4 Agricultural Products  -  804.1 Organic Compounds  -  802.2 Chemical Reactions  -  801.1 Chemistry, General  -  801 Chemistry
  DOI:10.6041/j.issn.1000-1298.2012.06.025
  Database:Compendex

16. Accession number:20122915260034
  Title:Remote control spraying system based on unmanned helicopter
  Authors:Ru, Yu1 ; Jia, Zhicheng1 ; Fan, Qingni1 ; Che, Jun1 
  Author affiliation:1  College of Mechanical and Electronic Engineering, Nanjing Forest University, Nanjing 210037, China
  Corresponding author:Ru, Y. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:47-52
  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 remote control spray system based on the helicopter from German VARIO company was designed. The spray system including the tank, control box, pump, pipeline system, cantilever and centrifugal nozzle were set on un-manned helicopter. The remote control system reserved for aerial spraying was developed. The spraying system can be operated by remote control units. By carrying out the theory research on main influence facts of centrifugal atomizing spray effect and the tests for nozzle performance, the optimal operating parameters of centrifugal atomizing nozzle were obtained, that is, rotary speed of 6000 r/min, flow rate of 48 L/h, VMD of 138.558 μm, and spray swath of 3.42 m.
  Number of references:17
  Main heading:Spray nozzles
  Controlled terms:Centrifugation  -  Control theory  -  Flight control systems  -  Helicopters  -  Remote control
  Uncontrolled terms:Aerial spraying  -  Atomizing nozzle  -  Centrifugal atomizing  -  Control box  -  Operating parameters  -  Pipe-line systems  -  Remote-control units  -  Rotary speed  -  Spray swath  -  Spray systems   -  Spraying system  -  Unmanned helicopter
  Classification code:631.1 Fluid Flow, General  -  652.4 Helicopters  -  731.1 Control Systems  -  802.3 Chemical Operations
  DOI:10.6041/j.issn.1000-1298.2012.06.009
  Database:Compendex

17. Accession number:20122915260045
  Title:Microwave-vacuum drying characteristics and kinetics model of litchi pulp
  Authors:Li, Hui1 ; Lin, Hetong1 ; Yuan, Fang1 ; Lin, Yifen1 ; Chen, Yihui2 
  Author affiliation:1  College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
                 2  Institute of Postharvest Technology of Agricultural Products, Fujian Agriculture and Forestry University, Fuzhou 350002, China
  Corresponding author:Lin, H. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:107-112
  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 microwave-vacuum drying characteristics of litchi pulp were studied and the effects of microwave power, relative pressure and loading capacity on drying rate of litchi pulp were investigated. The results showed that the drying rates of litchi pulp were markedly affected by microwave power and loading capacity, whereas, there was no obviously affected by relative pressure. The experimental drying data of litchi pulp were used to fit twelve available drying models, and coefficients of models were determined by non-linear regression analysis. It showed that Modified Henderson and Pabis model had higher correction coefficient R2, lower square sum of error (SSE) value and root mean square error (RMSE) value and could exactly describe and predict the moisture dynamics of litchi pulp during microwave-vacuum drying process.
  Number of references:18
  Main heading:Fruit juices
  Controlled terms:Drying  -  Food technology  -  Loading  -  Mean square error  -  Microwave generation  -  Microwave heating  -  Microwave power transmission  -  Regression analysis
  Uncontrolled terms:Correction coefficients  -  Drying characteristics  -  Drying model  -  Drying rates  -  Kinetics models  -  Loading capacities  -  Microwave power  -  Microwave-vacuum drying  -  Moisture dynamics  -  Non-linear regression analysis   -  Root mean square errors  -  Square sum
  Classification code:822.3 Food Products  -  822 Food Technology  -  714.2 Semiconductor Devices and Integrated Circuits  -  922.2 Mathematical Statistics  -  711.1 Electromagnetic Waves in Different Media  -  672 Naval Vessels  -  642.1 Process Heating  -  706.1.1 Electric Power Transmission
  DOI:10.6041/j.issn.1000-1298.2012.06.020
  Database:Compendex

18. Accession number:20122915260058
  Title:Testing equipment design of thermal resistant characteristics for pests based on AVR single-chip microcomputer
  Authors:Guo, Wenchuan1 ; Yang, Chenchen1 ; Zhao, Zhixiang1 ; Li, Qunzhuo1 ; Wang, Shaojin1 
  Author affiliation:1  College of Mechanical and Electronic Engineering, Northwest A and F University, Yangling, Shaanxi 712100, China
  Corresponding author:Guo, W. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:183-187
  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 thermal resistant characteristics of pests in agricultural products are important to determine the lethal temperature and time for thermal disinfestation methods. Therefore, a set of research system was designed and built to obtain the given heating rate and temperature required by thermal controls of pests. The temperature detection and control circuits were mainly developed by using AVR Atmega16 single chip microcomputer (SCM) as controller, Pt100 as temperature sensor, and pulse width modulation as temperature control method. The C language and VB software were used to control SCM procedure and personal computer monitoring/data acquisition, respectively. The running results showed that the temperature measurement and control accuracy was 0.2°C and 0.1°C for heating up to 10~70°C. The heating rate could be achieved over the range of 0~15°C/min.
  Number of references:11
  Main heading:C (programming language)
  Controlled terms:Agricultural products  -  Computers  -  Controllers  -  Heating rate  -  Personal computers  -  Temperature control  -  Temperature measurement
  Uncontrolled terms:ATmega16  -  C language  -  Control circuits  -  Heating up  -  Lethal temperature  -  Measurement and control  -  Pest  -  Research system  -  Single chip microcomputers  -  Temperature control methods   -  Temperature detection  -  Testing equipment  -  Thermal control  -  Thermal resistant characteristic
  Classification code:944.6 Temperature Measurements  -  821.4 Agricultural Products  -  732.1 Control Equipment  -  731.3 Specific Variables Control  -  723.1.1 Computer Programming Languages  -  723 Computer Software, Data Handling and Applications  -  722.4 Digital Computers and Systems  -  722 Computer Systems and Equipment  -  641.2 Heat Transfer
  DOI:10.6041/j.issn.1000-1298.2012.06.033
  Database:Compendex

19. Accession number:20122915260041
  Title:Pyrolysis characteristics of corncob dilute-acid hydrolysis residue
  Authors:Huang, Yanqin1 ; Wei, Zhiguo1, 2 ; Yin, Xiuli1 ; Wu, Chuangzhi1 
  Author affiliation:1  Key Laboratory of Renewable Energy and Natural Gas Hydrate, Chinese Academy of Sciences, Guangzhou 510640, China
                 2  Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  Corresponding author:Yin, X. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:86-91
  Language:Chinese
  ISSN:10001298
  CODEN:NUYCA3
  Document type:Journal article (JA)
  Publisher:Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract:The mass loss characteristic of corncob acid hydrolysis residue (CAHR), corncob and lignin isolated from CAHR (CAHL) were analyzed by using a thermal-gravimetric analyzer (TGA). The evolution of main volatile products pyrolyzed from CAHL was characterized by TGA coupled to Fourier transform infrared spectrometry (TGA-FTIR). Pyrolysis behavior of CAHR and corncob was then investigated on a self-designed pyrolysis apparatus, furthermore, component of pyrolysis gas and char reactivity were also examined. Results of TGA showed that an abrupt mass loss stage for corncob was observed within narrow temperature zone from 250°C to 450°C, while the CAHR and CAHL decomposed gradually from 180°C to 800°C. It was indicated by TGA-FTIR that methanol and phenols were released at low temperature of 200~420°C, and that CO and CO2 mainly released after 400°C. The char yield (30.35%~42.64%) from CAHR at 550~850°C was much higher than that (19.18%~26.40%) from corncob, and CO2 gasification reactivity of CAHR char was lower than that of corncob char. The yield of CO, CO2 was higher compared with that of H2 and CH4, and H2 yield was notably enhanced at pyrolysis temperature over 650°C.
  Number of references:19
  Main heading:Pyrolysis
  Controlled terms:Carbon dioxide  -  Fourier transform infrared spectroscopy  -  Hydrolysis  -  Lignin  -  Methanol  -  Phenols
  Uncontrolled terms:Acid hydrolysis  -  Char reactivity  -  Char yield  -  Corncob  -  Dilute-acid hydrolysis  -  Fourier transform infrared spectrometry  -  Gasification reactivity  -  Low temperatures  -  Mass loss  -  Pyrolysis temperature   -  Residual lignins  -  Temperature zone  -  TGA-FTIR  -  Volatile products
  Classification code:801 Chemistry  -  802.2 Chemical Reactions  -  804.1 Organic Compounds  -  804.2 Inorganic Compounds  -  815.1.1 Organic Polymers
  DOI:10.6041/j.issn.1000-1298.2012.06.016
  Database:Compendex

20. Accession number:20122915260029
  Title:Navigation of vision-guided intelligent vehicle based on adaptive navigation parameters
  Authors:Li, Jin1 ; Chen, Wuwei2 
  Author affiliation:1  School of Mechanical Electronic and Automobile Engineering, Anhui Science and Technology University, Chuzhou 233100, China
                 2  School of Mechanical and Automotive Engineering, Hefei University of Technology, Hefei 230009, China
   Corresponding author:Li, J. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:19-24 152
  Language:Chinese
  ISSN:10001298
  CODEN:NUYCA3
  Document type:Journal article (JA)
  Publisher:Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract:In order to obtain better robustness and real-time processing of path recognition, the binary segmentation image, noise searching and filtering procedures were employed. The whole path was classified into far part and near part, and the difference between the two parts was used as a threshold for selecting target road. So the navigating parameters were adapted to the changing path. Based on a model of four-wheel intelligent vehicle, a path tracking simulation was performed. Then, the navigation system based on path tracking was designed by using two digital signal processors. The experiments showed the accuracy and robustness of the system.
  Number of references:14
  Main heading:Intelligent vehicle highway systems
  Controlled terms:Navigation systems  -  Signal processing
  Uncontrolled terms:Adaptive navigation  -  Binary segmentation  -  Filtering procedures  -  Path recognition  -  Path tracking  -  Realtime processing  -  Vision navigation
  Classification code:434.4 Waterway Navigation  -  716.1 Information Theory and Signal Processing  -  723.5 Computer Applications
  DOI:10.6041/j.issn.1000-1298.2012.06.004
  Database:Compendex

21. Accession number:20122915260054
  Title:Navigation line detection of tomato ridges in greenhouse based on least square method
  Authors:Wang, Xinzhong1 ; Han, Xu1 ; Mao, Hanping1 ; Liu, Fei1 
  Author affiliation:1  Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education and Jiangsu Province, Jiangsu University, Zhenjiang 212013, China
  Corresponding author:Wang, X. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  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:The problem of detect navigation line by machine vision under non-structural environment and complex background in greenhouse was addressed. After analyzing the distribution characteristics of the road images in tomato ridges based on HSI color space, a method was proposed for extracting the sensitive region of the heat pipe. Firstly, the binary images were generated from the road images by using Otsu segmentation method based on I-histogram. The discrete set of navigation points was obtained by using edge extraction algorithm in accordance with the binary images. And then, the two sidelines of the heat pipe were obtained by using the least square method to fit the discrete points, on the basis of this, the navigation line detection algorithm was proposed. Finally, the influences of the illumination in homogeneity and the different covering on navigation line detection were investigated. The experimental results indicated that in comparison with Hough transform, the algorithm was simple and fast, as well as robust with illumination in homogeneity, the edge information of target region could be extracted accurately and the recognition correct rate under different covering was 91.67%.
　Number of references:16
  Main heading:Navigation
  Controlled terms:Algorithms  -  Binary images  -  Color image processing  -  Computer vision  -  Fruits  -  Greenhouses  -  Heat pipes  -  Hough transforms  -  Image segmentation  -  Least squares approximations   -  Roads and streets
  Uncontrolled terms:Complex background  -  Discrete points  -  Discrete sets  -  Distribution characteristics  -  Edge extraction  -  Edge information  -  HSI color space  -  Least square methods  -  Line detection  -  Road images   -  Segmentation methods  -  Target regions  -  Tomato  -  Vision navigation
  Classification code:921 Mathematics  -  821.6 Farm Buildings and Other Structures  -  821.4 Agricultural Products  -  741.2 Vision  -  741.1 Light/Optics  -  723 Computer Software, Data Handling and Applications  -  716.3 Radio Systems and Equipment  -  641.2 Heat Transfer  -  406.2 Roads and Streets
  DOI:10.6041/j.issn.1000-1298.2012.06.029
  Database:Compendex

22. Accession number:20122915260064
  Title:Analysis of tapered roller EHL considering moment balance
  Authors:Yang, Ping1 ; Liu, Xiaoling1 ; Yang, Peiran1  
  Author affiliation:1  School of Mechanical Engineering, Qingdao Technological University, Qingdao 266033, China
  Corresponding author:Yang, P. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:220-225
  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:Numerical analysis was carried out for elastohydrodynamic lubrication (EHL) of tapered roller considering moment balance. The equation of moment balance, corresponding to the discrete method and the formula of relative error were given. Position angle of roller changed with the relative error in order to satisfy the moment balance. When considering the moment balance, effects of load, velocity and half-tapered angle on the position angle of roller, pressure and film thickness were analyzed. Results showed that, if load is in the geometrical center of a roller, moment balance could be ignored for the EHL of cylindrical roller. However, it is very important for that of tapered roller. In order to satisfy the moment balance, the position angle of roller would be increased, and large end would be raised. The tiny variation of the position angle would cause severe changes of EHL of tapered roller. The numerical analyses considering moment balance are closer to the real working condition. Meanwhile, the effects are more obvious with the increasing of load, velocity and half-tapered angle.
  Number of references:11
  Main heading:Elastohydrodynamic lubrication
  Controlled terms:Numerical analysis  -  Rollers (machine components)
  Uncontrolled terms:Cylindrical rollers  -  Discrete method  -  Equation of moments  -  Lubricating performance  -  Moment balance  -  Position angle  -  Relative errors  -  Tapered roller  -  Working conditions
  Classification code:601.2 Machine Components  -  607.2 Lubrication  -  921.6 Numerical Methods
  DOI:10.6041/j.issn.1000-1298.2012.06.039
  Database:Compendex

23. Accession number:20122915260033
  Title:Optimal design of rotating disc for intra-row weeding robot
  Authors:Huang, Xiaolong1, 2 ; Liu, Weidong1 ; Zhang, Chunlong1 ; Zhang, Yan1 ; Li, Wei1  
  Author affiliation:1  College of Engineering, China Agricultural University, Beijing 100083, China
                2  Mechanical and Electrical Engineering School, Beijing Information Science and Technology University, Beijing 100192, China
  Corresponding author:Li, W. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:42-46
  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 kinematics model was established for the rotating disc of intra-row weeding robot, and the trajectory of the rotating disc was designed by simulating its working process. Then the virtual orthogonal experiment was made in different factors and different levels. In order to optimize the best operational parameters in combination, the effects of weeding performances of the rotating disc in diverse parameters were analyzed by taking the coverage rate and the inbreaking rate as evaluation indexes. The experiment results verified that the simulation and orthogonal experiment were accurate and efficient with a good operation effectiveness of the prototype, and the weeding rate reached to 88.5%, yet the wounded seedling rate was only 1.6%.
  Number of references:11
  Main heading:Robots
  Controlled terms:Experiments  -  Optimization
  Uncontrolled terms:Coverage rate  -  Evaluation index  -  Intra-row weeding  -  Kinematics models  -  Operational parameters  -  Optimal design  -  Orthogonal experiment  -  Parameter optimization  -  Rotating disc  -  Working process
  Classification code:731.5 Robotics  -  901.3 Engineering Research  -  921.5 Optimization Techniques
  DOI:10.6041/j.issn.1000-1298.2012.06.008
  Database:Compendex

24. Accession number:20122915260061
  Title:Static stiffness analysis of joint of double screw and linear guides
  Authors:Yin, Yiyong1 ; Zhu, Liping2 ; Jia, Zhixin1 ; Zhao, Tong3  
  Author affiliation:1  School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China
                 2  Institute of Tontec, Tontec Technology Investment Group Co., Ltd., Nantong 226400, China
                 3 Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China
   Corresponding author:Zhao, T. ([email protected]) 
   Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:202-206
  Language:Chinese
  ISSN:10001298
  CODEN:NUYCA3
  Document type:Journal article (JA)
  Publisher:Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract:Based on the Hertz contact theory of elastic mechanics, a static stiffness model of double ball screw's joint was built by analyzing the linear stiffness of double linear guide rails and the axial stiffness of double ball screw and ball bearing. The permanent magnet linear synchronous motor's normal force affected the deformation of the feeding system. Based on the static stiffness model, deformation of the tool point was analyzed by finite element method and compared with the experimental results. The simulation results were in good agreement with measured data and indicated the accuracy of the static stiffness model.
  Number of references:8
  Main heading:Stiffness
  Controlled terms:Ball bearings  -  Ball screws  -  Deformation  -  Finite element method  -  Machine tools  -  Screws
  Uncontrolled terms:Axial stiffness  -  Elastic mechanics  -  Feeding system  -  Hertz contact theory  -  Linear guide rail  -  Linear stiffness  -  Normal forces  -  Permanent magnet linear synchronous motor  -  Static stiffness
  Classification code:921.6 Numerical Methods  -  732.1 Control Equipment  -  605 Small Tools and Hardware  -  951 Materials Science  -  603.1 Machine Tools, General  -  422 Strength of Building Materials; Test Equipment and Methods  -  421 Strength of Building Materials; Mechanical Properties  -  601.2 Machine Components
  DOI:10.6041/j.issn.1000-1298.2012.06.036
  Database:Compendex

25. Accession number:20122915260053
  Title:Design and experiment of intelligent mobile fruit picking robot
  Authors:Gu, Baoxing1 ; Ji, Changying1 ; Wang, Haiqing1 ; Tian, Guangzhao1 ; Zhang, Gaoyang1 ; Wang, Ling1 
  Author affiliation:1  College of Engineering, Nanjing Agricultural University, Nanjing 210031, China
  Corresponding author:Ji, C. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:153-160
  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 prototype for intelligent fruit picking operation was developed. It mainly consisted of intelligent mobile platform, picking arm, end-effector, transverse sliding institution and control systems. The system control program and human-machine interface were programmed with VC . The comprehensive experiments of the prototype were carried out in the orchard of Feng county in Jiangsu province. Results revealed that this robot could achieve autonomous navigation, independent picking and autonomous binning operation. The mobile platform, picking arm and end-effector can work coordinately, so the whole system performed very well. The correct rate of ripe fruit recognition and success rate of picking reached to 81.73% and 86.92%, respectively, whereas averagely 9.50 s were required for picking a single apple.
  Number of references:11
  Main heading:Intelligent robots
  Controlled terms:Computer vision  -  Experiments  -  Fruits  -  Machine design  -  Mobile phones
  Uncontrolled terms:Autonomous navigation  -  Fruit recognition  -  Human Machine Interface  -  Jiangsu province  -  Mobile platform  -  Picking robot  -  System control
  Classification code:601 Mechanical Design  -  718.1 Telephone Systems and Equipment  -  731.6 Robot Applications  -  821.4 Agricultural Products  -  901.3 Engineering Research
  DOI:10.6041/j.issn.1000-1298.2012.06.028
  Database:Compendex

26. Accession number:20122915260035
  Title:Wind tunnel experiment of influence on droplet size distribution of flat fan nozzles
  Authors:Zhang, Huichun1, 2 ; Gary, Dorr2 ; Zheng, Jiaqiang1 ; Zhou, Hongping1 
  Author affiliation:1  College of Mechanical and Electronic Engineering, Nanjing Forest University, Nanjing 210037, China
                 2  Faculty of Science, The University of Queensland, Brisbane 4343, Australia
  Corresponding author:Zhang, H. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:53-57 52
  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 research the influence of spray operation parameters on droplet size distribution of flat fan nozzle, experiments were conducted by using an open circuit wind tunnel and a Sympatec laser diffraction analyzer. The droplet size of reference nozzle was tested to classify the nozzles' spray spectra. The droplet size distribution generated by different types of nozzles at different spraying pressure for different wind speed with various distances between the nozzle and the laser beam was analyzed. Experimental results showed that the VMD and percentage of the total volume contained in droplet sizes less than 150 μm increased with the increasing of the spray pressure, wind speed and distances between the nozzle and the laser beam. Moreover, the classifications of nozzle's spray spectrum became lower when the pressure and wind speed rose. The distance between the nozzle and the laser beam and wind tunnel experiment could be used to ensure the accuracy and reliability of measurement results when the laser diffraction analyzer was used to test the droplet size.
  Number of references:13
  Main heading:Spray nozzles
  Controlled terms:Diffraction  -  Drops  -  Experiments  -  Laser beams  -  Size distribution  -  Wind effects  -  Wind tunnels
  Uncontrolled terms:Droplet size distributions  -  Droplet sizes  -  Flat fan nozzle  -  Laser diffractions  -  Measurement results  -  Open circuit wind tunnels  -  Operation parameters  -  Spray pressure  -  Spraying pressure  -  Wind speed   -  Wind tunnel experiment
  Classification code:901.3 Engineering Research  -  744.8 Laser Beam Interactions  -  711.1 Electromagnetic Waves in Different Media  -  651.2 Wind Tunnels  -  631.1 Fluid Flow, General  -  443.1 Atmospheric Properties  -  423 Non Mechanical Properties and Tests of Building Materials
  DOI:10.6041/j.issn.1000-1298.2012.06.010
  Database:Compendex

27. Accession number:20122915260036
  Title:Turning anti-slip control system of hydraulic four-wheel drive high clearance sprayer
  Authors:Mao, Hanping1 ; Ni, Jing1 ; Han, Lühua1 ; Zuo, Zhiyu1 ; Gu, Jian2 ; Zhang, Xiaodong1 
  Author affiliation:1  Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education and Jiangsu Province, Jiangsu University, Zhenjiang 212013, China
                 2  Engineering Training Center, Jiangsu University, Zhenjiang 212013, China
  Corresponding author:Mao, H. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:58-62
  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 linear 2-DOF model of steering for the four-wheel drive high clearance spray chassis was established. Taking front-wheel turning for example, the actual steering angle was calculated. A steering anti-slip control system by using absolute difference of the actual speed ratio and theoretical speed ratio as control object was designed. The device of steering anti-slip electro-hydraulic system was constructed and by experiment the designed system was verified when the turning angel were at 5°, 10°, 15°, 20°, 25°, 30° respectively and turning angle changed in continuous between 0°~30°. The results show that the turning anti-slip control effect for four-wheel drive high clearance sprayer is excellent, the maximum control error is 2.01% and the average value is 1.25%.
  Number of references:11
  Main heading:Four wheel steering
  Controlled terms:Control systems  -  Hydraulic equipment  -  Wheels
  Uncontrolled terms:Absolute difference  -  Anti-slip control  -  Average values  -  Control errors  -  Control objects  -  Electro-hydraulic system  -  Four-wheel drives  -  PID  -  Speed ratio  -  Sprayer   -  Steering angles  -  Test  -  Turning angles
  Classification code:601.2 Machine Components  -  632.2 Hydraulic Equipment and Machinery  -  663.2 Heavy Duty Motor Vehicle Components  -  731.1 Control Systems
  DOI:10.6041/j.issn.1000-1298.2012.06.011
  Database:Compendex

28. Accession number:20122915260048
  Title:Effects of different operation conditions on continuous generation of slightly acidic electrolyzed functional water
  Authors:Li, Fade1 ; Hou, Yatao1 ; Liu, Haijie2 ; Wang, Lijun1 ; Li, Lite2 ; Zhang, Yemin1 
  Author affiliation:1  Mechanical and Electronic Engineering College, Shandong Agricultural University, Taian 271018, China
                 2  College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
  Corresponding author:Li, F. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:122-127
  Language:Chinese
  ISSN:10001298
  CODEN:NUYCA3
  Document type:Journal article (JA)
  Publisher:Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract:The effects of the different operation conditions such as the voltage supplied to the electrodes, the flux of the hydrochloric acid solution, the pH value of the raw water and hydrochloric acid solution concentration on the available chlorine content, the pH value and the electrical conductivity of the slightly acidic electrolyzed functional water (SAEFW) were investigated with a continuous electrolyzed functional water generating system which was independently developed. The results showed that the available chlorine concentration of the SAEFW increased significantly with the increase in the voltage in the range of 3~5 V (P<0.01), but the influences of the voltage on the pH value and the electrical conductivity of the SAEFW were not noticeable (P>0.05). It was also found that the available chlorine and the electrical conductivity of the SAEFW also increased significantly with the increase in the flux of the hydrochloric acid, solution, but the pH value of the SAEFW decreased obviously when the flux of the hydrochloric acid solution increased (P<0.01). In addition, as the pH value of the raw water rose, the pH value and the electrical conductivity of the SAEFW increased and decreased significantly, respectively (P<0.01). However, the effect of the pH value of the raw water on the available chlorine of the SAEFW was not significantly different (P>0.05). At last, the available chlorine concentration and electrical conductivity of the SAEFW increased with the increase of the hydrochloric acid solution concentration, on the contrary, the pH value decreased (P<0.01).
  Number of references:19
  Main heading:pH effects
  Controlled terms:Chlorine  -  Electric conductivity  -  Hydrochloric acid
  Uncontrolled terms:Chlorine concentration  -  Chlorine content  -  Electrical conductivity  -  Functional water  -  Generating system  -  Hydrochloric acid solution  -  Operation conditions  -  pH value  -  Raw water
  Classification code:701.1 Electricity: Basic Concepts and Phenomena  -  801.1 Chemistry, General  -  803 Chemical Agents and Basic Industrial Chemicals  -  804 Chemical Products Generally
  DOI:10.6041/j.issn.1000-1298.2012.06.023
  Database:Compendex

29. Accession number:20122915260039
  Title:Design and experiment on cleaning leaves and breaking tails mechanism of whole-stalk sugarcane harvester
  Authors:Ma, Fanglan1 ; Jiang, Hongmei1 ; Li, Shangping2 ; Xu, Zhiwei1 ; Yang, Bingxin1 ; Fan, Zhida1 
  Author affiliation:1  College of Mechanical Engineering, Guangxi University, Nanning 530004, China
                  2  Qinzhou University, Qinzhou 535000, China
  Corresponding author:Ma, F. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:73-78 7
  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 triangle layout of the mechanism of cleaning leaves and breaking tails based on the force analysis of motion of the sugarcane and its material properties was presented. It successfully achieves the functions of raking and cleaning leaves, and breaking tails. The orthogonal experiment on the self developed experiment platform was carried out to verify the effect of the layout and find out the optimal parameter combination. According to the experiment, the optimal combination is: the rotating speed of the raking roller of 700 r/min, the speed of the cleaning roller of 900 r/min, the interaction depth of the raking teeth of 40 mm, and the interaction depth of the cleaning element of 30 mm. The experiment results show that the inverted goods font layout of the mechanism is effective and feasible.
  Number of references:10
  Main heading:Cleaning
  Controlled terms:Experiments  -  Harvesters  -  Optimization
  Uncontrolled terms:Breaking tails  -  Force analysis  -  Interaction depth  -  Material property  -  Optimal combination  -  Optimal parameter combinations  -  Orthogonal experiment  -  Rotating speed  -  Sugarcane harvesters
  Classification code:802.3 Chemical Operations  -  821.1 Agricultural Machinery and Equipment  -  901.3 Engineering Research  -  921.5 Optimization Techniques
  DOI:10.6041/j.issn.1000-1298.2012.06.014
  Database:Compendex

30. Accession number:20122915260026
  Title:Transmission control mode of electromagnetic power-split hybrid electric vehicle
  Authors:Yu, Haisheng1, 2 ; Zhang, Jianwu1 ; Zhang, Tong2 ; Tang, Xiaolin1 ; Wang, Chen2 ; Wang, Dongping2 
  Author affiliation:1  School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
                 2  Shanghai Maple Automobile Co., Ltd., Shanghai 201501, China
  Corresponding author:Yu, H. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:1-7
  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 electromagnetic power-split (EMPS) hybrid electric vehicle was designed. This system with dual-rotor brush motor could be used to modulate the engine power flow, also can be used as electromagnetic clutch and CVT. The system configuration, working principle, the vehicle control mode and etc were analyzed. The control mode was tested under the NEDC based on the vehicle simulation platform. The dynamic and economic performances of the EMPS HEV were analyzed. The results noted that the designed vehicle control mode of the EMPS HEV worked properly under different cycles. The results also noted that the time from 0 km/h to 100 km/h was 12 s and climbing grade was bigger than 17°, these values were all satisfied with vehicle dynamic target. The average fuel consumption under the NEDC was 4.75 L/(100 km), the fuel can be saved was 41.3% compared with the related conventional vehicle.
  Number of references:9
  Main heading:Hybrid vehicles
  Controlled terms:Control system synthesis  -  Electric power transmission  -  Electromagnetism  -  Secondary batteries
  Uncontrolled terms:Continuously variable transmission  -  Control modes  -  Economic performance  -  Electromagnetic clutch  -  Electromagnetic power-split  -  Engine power  -  Planetary  -  System configurations  -  Transmission control  -  Vehicle Control   -  Vehicle dynamics  -  Vehicle simulation  -  Working principles
  Classification code:432 Highway Transportation  -  701 Electricity and Magnetism  -  702.1.2 Secondary Batteries  -  706.1.1 Electric Power Transmission  -  731.1 Control Systems
  DOI:10.6041/j.issn.1000-1298.2012.06.001
  Database:Compendex

31. Accession number:20122915260038
  Title:Design and experiment of maize root stubble harvester
  Authors:Wang, Junfa1 ; Ma, Liuxuan1 ; Shao, Dongwei1 ; Ge, Yiyuan1 ; Liu, Xinzhu1 
  Author affiliation:1  School of Mechanical Engineering, Jiamusi University, Jiamusi 154007, China
  Corresponding author:Wang, J. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:68-72
  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 type of maize root stubble harvester based on a lot of test was designed. It can complete a serial of task including digging, picking, clearing, guiding, collecting and windrowing along side position in sequence. This harvester was consisted of the digging root stubble device, the clearing and picking device, the chain type transporting device, the suspension and hydraulic system, which was used for digging and collecting corn root stubble such as maize and sorghum. In this harvester, the digging shovel with offset handle and the flexible picking device with flex tooth were developed by self-innovation, which could finish picking process under surface for the root stubble of non-coupling maize. The field test results showed that the rate of non-picking root stubble was less than 2.8%, the productivity was 0.955~1.086 hm2/h, the operation broad width was 2.6 m and the reliability coefficient of the whole machine was 96.8%.
  Number of references:17
  Main heading:Harvesters
  Controlled terms:Design  -  Hydraulic equipment
  Uncontrolled terms:Chain-type  -  Digging shovels  -  Field experiment  -  Field test  -  Hydraulic system  -  Maize roots  -  Whole machine
  Classification code:408 Structural Design  -  632.2 Hydraulic Equipment and Machinery  -  821.1 Agricultural Machinery and Equipment
  DOI:10.6041/j.issn.1000-1298.2012.06.013
  Database:Compendex

32. Accession number:20122915260062
  Title:Modification of normal and tangential stiffness for joint interface with metallic material and experimental validation
  Authors:Tian, Hongliang1 ; Zhao, Chunhua1 ; Zhu, Dalin1 ; Qin, Hongling1 ; Li, Xiang1 ; Mao, Kuanmin2 
  Author affiliation:1  College of Mechanical and Material Engineering, China Three Gorges University, Yichang 443002, China
                 2  School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
  Corresponding author:Tian, H. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:207-214
  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 proximate analytic results of fractal dimension and fractal roughness were derived. Some solutions associated with normal contact stiffness in joint interface were modified. A general Matlab program was compiled to solve the domain extension factor. The analytic expression for the tangential contact stiffness was deduced about joint interface. A joint interface selected as an example in XHK5140 automatic tool-changing CNC vertical boring and milling machine tool in terms of the experimental results about test specimen, the theoretical expressions for normal and tangential contact stiffness were validated via the correlation of similar vibration shape and quantitative comparison tenet of natural frequencies. The theoretical vibration shapes were in good line with the experimental ones. The relative error between the theoretical natural frequencies and the experimental results distributed from -16.8% to 16.8%.
  Number of references:16
  Main heading:Interfaces (materials)
  Controlled terms:Experiments  -  Fractal dimension  -  MATLAB  -  Natural frequencies
  Uncontrolled terms:Contact stiffness  -  Joint interfaces  -  Modification  -  Rough surfaces  -  Tangential contact
  Classification code:711.1 Electromagnetic Waves in Different Media  -  901.3 Engineering Research  -  921 Mathematics  -  951 Materials Science
  DOI:10.6041/j.issn.1000-1298.2012.06.037
  Database:Compendex

33. Accession number:20122915260049
  Title:Effect of low-frequency alternating magnetic field on biomass of Monascus purpurcus solid-state fermentation
  Authors:Deng, Guangwu1 ; Xia, Fan1 ; Wang, Jieya1 ; Gao, Mengxiang1  
  Author affiliation:1  College of Life Science, Yangtze University, Jingzhou 434025, China
  Corresponding author:Gao, M. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:128-132
  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 biomass of Monascus purpurcus solid-state fermentation influenced by low frequency alternating magnetic field (50 Hz, 0~2 mT) was main studied in order to discuss the magnetic field influence on the performance of engineering bacteria fermentation. Results showed that the magnetic treatment could promote Monascus purpurcus biomass producing in the third day with the maximum improving of 29.9% at 0.6 mT. The biomasses of treatment group and control group reach maximum in the eleventh day with the whole procedure of 15 days and magnetic field intensity of 0~2 mT. But the biomass and substrate consumption ratio of treatment group and control group did not show obviously difference. Low-frequency alternating magnetic field could promote Monascus purpurcus growth, then change their metabolic way and enhance the fermentation benefits.
  Number of references:16
  Main heading:Biomass
  Controlled terms:Fermentation  -  Magnetic fields  -  Speed control
  Uncontrolled terms:Alternating magnetic field  -  Control groups  -  Engineering bacteria  -  Low frequency  -  Magnetic field influence  -  Magnetic treatment  -  Magnetic-field intensity  -  Monascus  -  Solid-state fermentation  -  Treatment group
  Classification code:525.1 Energy Resources and Renewable Energy Issues  -  701.2 Magnetism: Basic Concepts and Phenomena  -  731.3 Specific Variables Control  -  802.2 Chemical Reactions
  DOI:10.6041/j.issn.1000-1298.2012.06.024
  Database:Compendex

34. Accession number:20122915260066
  Title:Numerical simulation and experiment of flexible floating clamping in multi-roll stretch forming process
  Authors:Zhang, Haohan1 ; Li, Mingzhe1 ; Fu, Wenzhi1 ; Peng, Heli1 ; Feng, Pengxiao1 
  Author affiliation:1  Dieless Forming Technology Center, Jilin University, Changchun 130025, China
  Corresponding author:Li, M. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:230-234
  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 multi-roll stretch forming process of saddle-shaped surface parts with flexible floating clamping mode were simulated by ANSYS/LS-DYNA. The effect of flexible floating clamping mode was verified. The distribution of stress and strain of formed parts was analyzed. Results indicated that the flexible floating clamping mode was suitable for the process of the multi-roll stretch forming process. The stress and strain of the formed part distributed uniformly. Finally, the corresponding experiment was accomplished. When comparing the results of the numerical simulation and that of the experiment, it was concluded that the two types of results were nearly consistent.
  Number of references:11
  Main heading:Computer simulation
  Controlled terms:Experiments  -  Forming  -  Plate metal
  Uncontrolled terms:Flexible clamping  -  Stress and strain  -  Stretch-forming
  Classification code:535.1.2 Rolling Mill Practice  -  535.2 Metal Forming  -  723.5 Computer Applications  -  901.3 Engineering Research
  DOI:10.6041/j.issn.1000-1298.2012.06.041
  Database:Compendex

35. Accession number:20122915260047
  Title:Feature selection method for apple grading based on machine vision
  Authors:Yin, Yong1 ; Tao, Kai1 ; Yu, Huichun1 
  Author affiliation:1  College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471003, China
  Corresponding author:Yin, Y. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:118-121 127
  Language:Chinese
  ISSN:10001298
  CODEN:NUYCA3
  Document type:Journal article (JA)
  Publisher:Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract:In order to improve the accuracy of apple grading in digital image processing system, the multi-feature information was extracted for describing the apple features. However, this method may result in information redundancy and so on. So, the principal component analysis (PCA) was used to carry out information fusion of the feature parameters, and with the aid of Wilks Λ statistic the principal components (PC) which could promote grading results were selected. Then some features used in grading were selected based on the contribution rate to selected PC. The results of Fisher discriminate analysis (FDA) showed that the grading effect corresponding to the selected features was better than that of all features, and the grading accuracy and the cross-validation accuracy rose by 2.0% and 1.5%, respectively.
  Number of references:12
  Main heading:Grading
  Controlled terms:Computer vision  -  Feature extraction  -  Fruits  -  Principal component analysis  -  Statistics
  Uncontrolled terms:Apple  -  Contribution rate  -  Cross validation  -  Digital image  -  Discriminate analysis  -  Feature parameters  -  Feature selection methods  -  Grade  -  Image  -  Information redundancies   -  Principal component
  Classification code:716 Telecommunication; Radar, Radio and Television  -  723.5 Computer Applications  -  821.4 Agricultural Products  -  913.3 Quality Assurance and Control  -  922.2 Mathematical Statistics
  DOI:10.6041/j.issn.1000-1298.2012.06.022
  Database:Compendex

36. Accession number:20122915260052
  Title:Optimal path planning for agricultural machinery
  Authors:Meng, Zhijun1 ; Liu, Hui2 ; Wang, Hua2 ; Fu, Weiqiang1 
  Author affiliation:1  National Engineering Research Center for Information Technology in Agriculture, Beijing 100097, China
                 2  Information Engineering College, Capital Normal University, Beijing 100048, China
  Corresponding author:Meng, Z. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:147-152
  Language:Chinese
  ISSN:10001298
  CODEN:NUYCA3
  Document type:Journal article (JA)
  Publisher:Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China
  Abstract:A kind of optimal path planning method for complete field coverage in agricultural machinery farming was described. The given convex field was decomposed into sub regions according to typical faming pattern of complete field coverage. Optimal path planning should minimize agricultural machines turns, farming time, route distance or other optimization object. According to the different purpose of path planning above, optimal travel direction could be determined based on topological features of arable lands, turns pattern in the headland and other useful information. Farming path planning software was developed by using this algorithm. The test results from four actual quadrangular fields showed that the optimization object for field operation in optimal travel direction decreased obviously compared with other directions. Each optimal travel direction in those quadrangular fields above was along any edge. Especially for a quadrangle having a larger edge ratio, the optimal travel direction was almost the longest edge.
  Number of references:12
  Main heading:Motion planning
  Controlled terms:Agricultural machinery  -  Optimization
  Uncontrolled terms:Agricultural machine  -  Arable land  -  Complete field coverage  -  Field operation  -  Longest edge  -  Optimal path planning  -  Path planning softwares  -  Sub-regions  -  Topological features
  Classification code:731.5 Robotics  -  821.1 Agricultural Machinery and Equipment  -  921.5 Optimization Techniques
  DOI:10.6041/j.issn.1000-1298.2012.06.027
  Database:Compendex

37. Accession number:20122915260060
  Title:Product evolutionary mechanism based on system dynamics
  Authors:Fu, Peihong1 ; Li, Fengping1 ; Zhou, Hongming1 ; Zhou, Yuqing1 ; Li, Pei1 
  Author affiliation:1  College of Mechanical and Electrical Engineering, Wenzhou University, Wenzhou 325035, China
  Corresponding author:Fu, P. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:195-201
  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 conceptual framework for product ecosystem was proposed. System dynamic method was used to analyze the effect of system elements in product survival and evolution. First, similarities between the product environment system and natural ecosystem were analyzed. Then, a model for product ecosystem was constructed, and the key relationships between the product and its environment was analyzed by using system dynamic method for describing the effect of environment in product evolution. Lastly, a phylogenetic analysis of self-priming pump was given as an example.
  Number of references:10
  Main heading:Ecosystems
  Controlled terms:System theory
  Uncontrolled terms:Conceptual frameworks  -  Ecological environments  -  Evolutionary mechanisms  -  Natural ecosystem  -  Phylogenetic analysis  -  Product ecosystems  -  Product environment  -  Product evolution  -  Product evolutionary  -  Self priming pumps   -  System Dynamics  -  System elements
  Classification code:454.3 Ecology and Ecosystems  -  961 Systems Science
  DOI:10.6041/j.issn.1000-1298.2012.06.035
  Database:Compendex

38. Accession number:20122915260063
  Title:Dynamic modeling and experiment of angular contact ball bearing
  Authors:Fang, Bing1 ; Zhang, Lei1 ; Qu, Xingtian1 ; Zhao, Ji1 
  Author affiliation:1  Institute of Mechanical Science and Engineering, Jilin University, Changchun 130025, China
  Corresponding author:Zhang, L. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:215-219 225
  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:Considered structure vibration of angular contact ball bearing, the elastic deformation of rolling elements in form of matrix or vector was defined so as to keep structural integrity and get clear notation, in this way, the elastic deformation of every rolling element could be calculated easily. Combining Hertz contact theory and Lagrange mechanics theory, a 5-DOF dynamic model was built. By using this model, the relationship between the frequency of structure and the preload, the contact angle and ball position was discussed. Experimental results proved that the error of the dynamic equation was less than 15%, which met the requirement of engineering calculations.
  Number of references:15
  Main heading:Ball bearings
  Controlled terms:Contact angle  -  Dynamics  -  Elastic deformation  -  Experiments  -  Models
  Uncontrolled terms:Angular contact ball bearing  -  Dynamic equations  -  Engineering calculation  -  Hertz contact theory  -  Lagrange mechanics  -  Pre loads  -  Rolling elements  -  Structure vibration
  Classification code:931.2 Physical Properties of Gases, Liquids and Solids  -  931.1 Mechanics  -  902.1 Engineering Graphics  -  901.3 Engineering Research  -  818 Rubber and Elastomers  -  601.2 Machine Components  -  421 Strength of Building Materials; Mechanical Properties
  DOI:10.6041/j.issn.1000-1298.2012.06.038
  Database:Compendex

39. Accession number:20122915260032
  Title:Design and experiment of 1 GH-3 inter-row tillage machine
  Authors:Jia, Honglei1 ; Wang, Gang1 ; Jiang, Tiejun1 ; Liu, Hui2 ; Zhuang, Weilin1 
  Author affiliation:1  Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130025, China
                 2  Center of Information of Changchun, Changchun 130022, China
  Corresponding author:Jia, H. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:35-41 160
  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 inter-row tillage machine was developed with standing stubble. Tillage operations were performed in the ridges and furrows alternately which can be used for inter-row shallow-tillage, ridge stubble-breaking or full-width tillage operation through the rational arrangement of blades on the rotor and disassembling in the blades, or one machine for three purposes. The experiments showed that this machine met all the agrotechnical requirements in the three operational states. The determination results of soil compaction caused by the tractor tyres in the inter-row shallow-tillage operation showed that soil compaction had a significant effect on the soil bulk density at the depth of 0~10 cm. The soil bulk density increased by 8.5%, 7.0% and 6.2% when the machine traveled at speeds of 0.50 m/s, 0.65 m/s and 0.92 m/s, respectively. Soil compaction had little effect on the soil bulk density at the depth of 10~20 cm. Soil compaction also caused an increase in the torque of the blade when cutting the soil, but the increase in torque was not significant.
  Number of references:17
  Main heading:Agriculture
  Controlled terms:Agricultural machinery  -  Compaction  -  Experiments  -  Soil mechanics  -  Soils  -  Structure (composition)
  Uncontrolled terms:At-speed  -  Inter-row tillage machine  -  One-machine  -  Operational state  -  Performance  -  Soil bulk density  -  Soil compaction
  Classification code:483.1 Soils and Soil Mechanics  -  536.1 Powder Metallurgy Operations  -  821 Agricultural Equipment and Methods; Vegetation and Pest Control  -  821.1 Agricultural Machinery and Equipment  -  901.3 Engineering Research  -  951 Materials Science
  DOI:10.6041/j.issn.1000-1298.2012.06.007
  Database:Compendex

40. Accession number:20122915260051
  Title:Optimization of soluble whole-cell protein extraction from Alicylobacillus acidoterrestris
  Authors:Yuan, Yahong1 ; Liu, Xiaoke1 ; Yue, Tianli1 ; Gao, Zhenpeng1 
  Author affiliation:1  College of Food Science and Engineering, Northwest A and F University, Yangling, Shaanxi 712100, China
  Corresponding author:Yue, T. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:139-146
  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:The yield of soluble whole-cell protein from Alicylobacillus acidoterrestris DSM 3922T cells is dependent on the effectiveness of cell lysis post fermentation. Various cell lysis approaches were investigated, including ultrasound, SDS, boiling, lysozyme, and cell lysis reagent treatment, and the different samples of soluble protein were determined by SDS protein polyacrylamide gel electrophoresis. The soluble whole-cell protein by one-factor-at-a-time experiments and response surface method was optimized. The results showed that the cell lysis reagent treatment was the most effective in extracting soluble whole-cell protein. The most significant processing parameters, namely incubation temperature, reaction time, and the ratio of cell lysis reagent volume and bacteria weight (A/B ratio), were optimized by using the Box-Behnken with a quadratic regression model built by response surface methodology (RSM). The influence order of factors to protein extraction rate was: A/B ratio, time and temperature. The highest soluble whole-cell protein yield at 161.18 mg/g was attained under optimal time, temperature, and A/B ratio at 37.4 min, 18.9°C, and 27.0 mL/g, respectively. The regression model of soluble whole-cell protein extraction was highly significant (R2=0.9892), the experimental and simulated results were found to be in good agreement, which could be used to forecast.
  Number of references:25
  Main heading:Cells
  Controlled terms:Cytology  -  Electrophoresis  -  Optimization  -  Proteins  -  Regression analysis  -  Surface properties
  Uncontrolled terms:Alicylobacillus acidoterrestris  -  Cell lysis  -  Process parameters  -  Response surface  -  SDS-PAGE  -  Whole-cell protein
  Classification code:461.2 Biological Materials and Tissue Engineering  -  801.3 Colloid Chemistry  -  804.1 Organic Compounds  -  921.5 Optimization Techniques  -  922.2 Mathematical Statistics  -  951 Materials Science
  DOI:10.6041/j.issn.1000-1298.2012.06.026
  Database:Compendex

41. Accession number:20122915260043
  Title:Experiment on agglomeration characteristics during fluidized bed combustion of tobacco stem
  Authors:Zhang, Shihong1 ; Yang, Zixu1 ; Wang, Xianhua1 ; Chen, Hanping1 
  Author affiliation:1  State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China
  Corresponding author:Zhang, S. ([email protected]) 
  Source title:Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery
  Abbreviated source title:Nongye Jixie Xuebao
  Volume:43
  Issue:6
  Issue date:June 2012
  Publication year:2012
  Pages:97-101 106
  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 agglomeration phenomenon of tobacco stems was investigated on a pilot-scale fluidized bed at temperature between 800°C and 900°C with two kinds of bed materials silica sand and cinder, followed by a discussion on the agglomeration mechanism. The results indicated that the inclination of agglomeration for the two bed materials above was different. Severe incineration was found in silica sand which led to defluidization finally, while no agglomeration was discovered during long-term run. The data from X-ray fluorescence and scanning electron microscopy (SEM) and energy-dispersive X-ray (EDX) indicated that Al, Fe contained in cinder could react with alkali metals in the tobacco stem ash to form high-melting compounds, which prevented the agglomerates to grow, therefore inhibit the agglomeration.
  Number of references:16
  Main heading:Agglomeration
  Controlled terms:Alkali metals  -  Combustion  -  Fluidized bed combustion  -  Fluidized beds  -  Incineration  -  Scanning electron microscopy  -  Silica sand  -  Tobacco
  Uncontrolled terms:Bed materials  -  Defluidization  -  Energy dispersive x-ray  -  High-melting  -  Pilot scale  -  Tobacco stems  -  X ray fluorescence
  Classification code:821.4 Agricultural Products  -  812 Ceramics, Refractories and Glass  -  802.3 Chemical Operations  -  802.1 Chemical Plants and Equipment  -  741.1 Light/Optics  -  549.1 Alkali Metals  -  521.2 Combustors  -  521.1 Fuel Combustion  -  483 Soil Mechanics and Foundations
  DOI:10.6041/j.issn.1000-1298.2012.06.018
  Database:Compendex
 
 
 
   
 
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