第40卷第5期共收录47篇31

1、2009年第40卷第5期共收录47篇3. Accession number: 20092412122983 Title: Calibration transfer of NIRS on silage by slope/bias and local centering technique Authors: Liu, Xian1 ; Dong, Suxiao1 ; Han, Lujia1 ; Yang, Zengling1 ; Xu, Chuncheng1 Author affiliation: 1 College of Engineering, China Agricultural Univer

2、sity, Beijing 100083, China Corresponding author: Han, L. ( ) Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery Abbreviated source title: Nongye Jixie Xuebao Volume: 40 Issue: 5 Issue date: May 2009 Publication year: 2009 Pages: 153-157 Langu

3、age: Chinese ISSN: 10001298 CODEN: NUYCA3 Document type: Journal article (JA) Publisher: Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China Abstract: With the aim to demonstrate the feasibility of calibration transfer of near-infrared spectroscopy on si

4、lage, two types of near-infrared spectrometer of Nicolet ANTARIS (master) and FOSS 6500 (slave), and two methods of slope/bias and local centering were studied. Results show that after calibration transferring the determination coefficient of calibration (R2) and determination coefficient of cross v

5、alidation (Rcv2) were all greater than 0.85. The standard error of prediction and bias were 20.27 g/kg and -3.75, 27.67 g/kg and -6.17 for slope/bias and local centering technique respectively, which were comparable with the standard error of prediction value (20.60 g/kg) and bias value (-1.04) of t

6、he original model of FOSS 6500 spectrometer. These results were greatly improved from the standard error of prediction value (39.65 g/kg) and bias value (-33.60) before calibration transferring. Both of the two methods of calibration transfer worked successfully. Number of references: 20 Main headin

7、g: Infrared spectroscopy Controlled terms: Calibration - Infrared spectrometers - Spectrometry - Spectroscopic analysis - Spectrum analysis - Standards - Textiles Uncontrolled terms: Calibration transfer - Cross validation - Determination coefficients - Local centering - Near infrared spectrometer -

8、 Original model - Silage - Slope/bias - Standard error of prediction Classification code: 944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments - 943 Mechanical and Miscellaneous Measuring Instruments - 942 Electric and Electronic Measuring Instruments - 941.4 Optical Variables

9、 Measurements - 941 Acoustical and Optical Measuring Instruments - 931.2 Physical Properties of Gases, Liquids and Solids - 922.2 Mathematical Statistics - 921 Mathematics - 902.2 Codes and Standards - 819 Synthetic and Natural Fibers; Textile Technology - 801 Chemistry - 741.3 Optical Devices and S

10、ystems - 741.1 Light/Optics Database: Compendex Compilation and indexing terms, ? 2009 Elsevier Inc. 19. Accession number: 20092412122978 Title: Flavonoids ultrasonic extraction from Lycium barbarum L. Authors: Jia, Shaoqian1 ; Wu, Caie1 ; Li, Yanxia2 Author affiliation: 1 College of Forest Resource

11、s and Environment, Nanjing Forestry University, Nanjing 210037, China 2 Research Center of Agricultural Resources and Environments, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China Corresponding author: Wu, C. (sxwucaie163 ) Source title: Nongye Jixie Xuebao/Transactions of the Chines

12、e Society of Agricultural Machinery Abbreviated source title: Nongye Jixie Xuebao Volume: 40 Issue: 5 Issue date: May 2009 Publication year: 2009 Pages: 130-134 Language: Chinese ISSN: 10001298 CODEN: NUYCA3 Document type: Journal article (JA) Publisher: Chinese Society of Agricultural Machinery, No

13、. 1 Beishatan Deshengmen Wai, Beijing, 100083, China Abstract: In order to improve the extraction effect of flavonoids from Lycium barbarum L., ultrasonic was used to extract flavonoids of Lycium barbarum L. Through single fraction experiments and orthogonal experiments, the optimal technological pa

14、rameters were determined. The result expresses the optimal technological parameters are the concentration of ethanol 80%, liquid to solid ratio 50 mL/g, ratio of ultrasonic run and interim time 3 s/1 s, ultrasonic power 500 W, extracting 50 min, the extraction rate was 89.87%. Number of references:

15、12 Main heading: Ultrasonics Controlled terms: Ethanol Uncontrolled terms: Concentration of - Extraction rate - Flavonoids - Liquid to solid ratio - Lycium barbarum - Lycium barbarum L. - Orthogonal experiment - Technological parameters - Ultrasonic extraction - Ultrasonic power Classification code:

16、 523 Liquid Fuels - 753.1 Ultrasonic Waves - 804.1 Organic Compounds Database: Compendex Compilation and indexing terms, ? 2009 Elsevier Inc. 20. Accession number: 20092412122962 Title: Design of dual-sensor for measuring soil water characteristic curve Authors: Ren, Shujuan1 ; Sun, Yurui1 ; Ren, Tu

17、sheng2 Author affiliation: 1 Research Center for Precision Agriculture, China Agricultural University, Beijing 100083, China 2 College of Resources and Environmental Sciences, China Agricultural University, Beijing 100083, China Corresponding author: Sun, Y. ( ) Source title: Nongye Jixie

18、Xuebao/Transactions of the Chinese Society of Agricultural Machinery Abbreviated source title: Nongye Jixie Xuebao Volume: 40 Issue: 5 Issue date: May 2009 Publication year: 2009 Pages: 56-58+91 Language: Chinese ISSN: 10001298 CODEN: NUYCA3 Document type: Journal article (JA) Publisher: Chinese Soc

19、iety of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China Abstract: Based on a commercialized tensiometer, a dual-sensor was presented that it was able to simultaneously determine soil matric suction and volumetric water content, and therefore obtain soil water character

20、istic curve (SWCC) directly. Soil volumetric water content was measured by employing the metallic tube of the tensiometer as an antenna, whose radiating impedance varied as soil water content. Soil samples of three texture classes (sand, sandy-loam, and clay-loam) were tested and compared with the d

21、ata from the sand box and pressure chamber methods. The results indicate that for all the three soils, the RMSE of the dual sensor was less than 0. 05, the results of the dual-sensor agreed to that of classical method. Number of references: 8 Main heading: Water content Controlled terms: Clay minera

22、ls - Humidity control - Sensors - Soil moisture - Soil structure interactions - Underwater soils Uncontrolled terms: AS-soils - Classical methods - Dual-sensor - Matric suction - Metallic tubes - Pressure chamber - Soil matric suction - Soil sample - Soil-water characteristic curve - Volumetric wate

23、r content - Water characteristic curve Classification code: 801 Chemistry - 732.2 Control Instrumentation - 643.3 Air Conditioning - 483.2 Foundations - 483.1 Soils and Soil Mechanics - 482.2 Minerals - 471.1 Oceanography, General - 444 Water Resources - 402 Buildings and Towers Database: Compendex

24、Compilation and indexing terms, ? 2009 Elsevier Inc. 30. Accession number: 20092412122957 Title: Multidimensional vibration isolation device of vehicles and its simulation Authors: Yu, Daguo1 ; Ma, Lzhong1 ; Yang, Qizhi1 Author affiliation: 1 School of Mechanical Engineering, Jiangsu University, Zhe

25、njiang 212013, China Corresponding author: Yu, D. (yudaguo12qq ) Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery Abbreviated source title: Nongye Jixie Xuebao Volume: 40 Issue: 5 Issue date: May 2009 Publication year: 2009 Pages: 29-33 Language: Chines

26、e ISSN: 10001298 CODEN: NUYCA3 Document type: Journal article (JA) Publisher: Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China Abstract: The impact and vibration of vehicles often occurs in three directions along or around axes, which need multidimens

27、ional vibration isolation. If the technology was applied on one dimensional vibration isolation into multidimensional vibration isolation simply, the vibration isolation device would interfere. So a multidimensional vibration isolation device of vehicles was developed. It is composed of two Stewart

28、mechanisms: down platform and up platform. The two Stewart mechanisms with six degrees of freedom lead to the same degrees of freedom of the device. Damping and springs installed in joints of the two Stewart mechanisms isolate the vibration of vehicles. Dynamics simulations by ADAMS show that when t

29、he down platform is given an impulse, 6 accelerations of up platform are less than those of down platform obviously, and they decline rapidly. The shocking time, damping coefficient, stiffness coefficient of springs were simulated. Number of references: 10 Main heading: Vibrators Controlled terms: D

30、amping - Degrees of freedom (mechanics) - Steel bridges - Vehicles Uncontrolled terms: Damping coefficients - Degrees of freedom - Dynamics simulation - Impulse - Multidimensional vibrations - Simulation - Six degrees of freedom - Stewart mechanism - Stiffness coefficients - Vibration isolation - Vi

31、bration isolations Classification code: 752.1 Acoustic Devices - 731.5 Robotics - 691.1 Materials Handling Equipment - 931.1 Mechanics - 601.1 Mechanical Devices - 432 Highway Transportation - 401.1 Bridges - 545.3 Steel Database: Compendex Compilation and indexing terms, ? 2009 Elsevier Inc. 42. Ac

32、cession number: 20092412122992 Title: Modification of raceway control theory on the dynamic equations group of high-speed ball bearing Authors: Zhao, Chunjiang1, 2 ; Wang, Jianmei1 ; Huang, Qingxue1 ; Ma, Lifeng1 Author affiliation: 1 College of Material Science and Engineering, Taiyuan University o

33、f Science and Technology, Taiyuan 030024, China 2 College of Mechanical Science and Engineering, Jilin University, Changchun 130025, China Corresponding author: Zhao, C. (zhaochunjiang2009126 ) Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery Abbreviate

34、d source title: Nongye Jixie Xuebao Volume: 40 Issue: 5 Issue date: May 2009 Publication year: 2009 Pages: 199-202 Language: Chinese ISSN: 10001298 CODEN: NUYCA3 Document type: Journal article (JA) Publisher: Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083,

35、 China Abstract: Based on the analysis of ratio of revolution and rolling on high-speed ball bearing, the shortage of raceway control theory was put forward. Then a precise relationship between inner and outer raceway control parameter was established according to the equilibration of frictional for

36、ce and gyro moment on rolling ball. The semi-empirical formula about friction factor between rolling element and raceway was introduced into the calculation process. To avoid the shortage of raceway control theory, the attitude angle of rolling ball decided by raceway control theory is substituted b

37、y the one obtained from the analysis of D Alembert principle. So the friction factor and attitude angle of rolling ball are depended on normal load of rolling ball, and then an accurate form was provided and make sure it could be solved with dynamic equations group of high-speed ball bearing. At las

38、t, an example was given to compare the results from body matter with the ones from existing method, and indicates that the method of body is accurate and more closing to the practice. Number of references: 9 Main heading: Ball bearings Controlled terms: Control system analysis - Friction - Speed - S

39、pheres - System theory - Tribology Uncontrolled terms: Attitude angle - Calculation process - Control parameters - DAlembert principle - Dynamic equations - Existing method - Friction factors - Frictional forces - High-speed - High-speed ball bearing - Modification - Normal loads - Raceway control t

40、heory - Rolling balls - Rolling elements - Semi-empirical formulas - Semi-empirical friction factor Classification code: 931.2 Physical Properties of Gases, Liquids and Solids - 931.1 Mechanics - 931 Classical Physics; Quantum Theory; Relativity - 912.3 Operations Research - 961 Systems Science - 73

41、1.4 System Stability - 631 Fluid Flow - 601.2 Machine Components - 461.1 Biomedical Engineering - 731.1 Control Systems Database: Compendex Compilation and indexing terms, ? 2009 Elsevier Inc. 43. Accession number: 20092412122984 Title: Design of conveyer and turnover mechanism of apple grader Autho

42、rs: Li, Jing1 ; Zhang, Dongxing1 ; Liu, Bao1 Author affiliation: 1 College of Engineering, China Agricultural University, Beijing 100083, China Corresponding author: Li, J. () Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery Abbreviated source title: No

43、ngye Jixie Xuebao Volume: 40 Issue: 5 Issue date: May 2009 Publication year: 2009 Pages: 158-161+157 Language: Chinese ISSN: 10001298 CODEN: NUYCA3 Document type: Journal article (JA) Publisher: Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China Abstrac

44、t: The method and principle of apple orientation and turnover were described. An apple conveyer and turnover mechanism were specially designed to accomplish the orientation of different diameter apples and turn them over by the approximately same angular speed in order to collect and process the ima

45、ges of apples for apple grading in next step. Experiment results indicate that the mechanism could accomplish apple orientation and turnover, image collection results can meet grading requirement. Number of references: 7 Main heading: Fruits Controlled terms: Conveyors - Grading - Machine design Unc

46、ontrolled terms: Angular speed - Apple - Conveyer and turnover mechanism - Image collection - Image collections - Orientation Classification code: 601 Mechanical Design - 692.1 Conveyors - 821.4 Agricultural Products - 913.3 Quality Assurance and Control Database: Compendex Compilation and indexing

47、terms, ? 2009 Elsevier Inc. 44. Accession number: 20092412122964 Title: Near-infrared spectral detection of soil moisture based on feature extraction of FFT Authors: Li, Xiaoyu1 ; Xiao, Wu1 ; Li, Peiwu2 ; Lei, Tingwu3 ; Wang, Wei1 ; Feng, Yaoze1 Author affiliation: 1 College of Engineering and Techn

48、ology, Huazhong Agricultural University, Wuhan 430070, China 2 Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China 3 Institute of Soil and Water Conservation, Ministry of Water Resources, Chinese Academy of Sciences, Yangling 712100, China Corresponding author

49、: Li, X. ( ) Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery Abbreviated source title: Nongye Jixie Xuebao Volume: 40 Issue: 5 Issue date: May 2009 Publication year: 2009 Pages: 64-67 Language: Chinese ISSN: 10001298 CODEN: NUYCA3

50、Document type: Journal article (JA) Publisher: Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China Abstract: Three kinds of soil from Hubei province was studied, PLS and cross calibration method was employed to establish soil moisture analysis model. The

51、 result indicates that the models decision coefficient was 0.995, and RMSECV was 0.801%, the models forecast decision coefficient was 0.992, the RMSEP was 0.912%. Using the model to forecast loessial soil on Loess Plateau region, the error was greater than 4%. At last, the study of the Hubei yellow

52、brown earth, paddy field soil and alluvial soil samples collected from Fourier transform parameters and characteristics of soil moisture to establish PLS prediction model, model decision coefficient was 0.988, and RMSECV is 1.106%. And the error of model prediction of loessial soil was less than 2%,

53、 the accuracy improved more greatly than traditional model. Number of references: 12 Main heading: Geologic models Controlled terms: Feature extraction - Groundwater - Infrared devices - Moisture determination - Permittivity - Soil moisture Uncontrolled terms: Alluvial soil - Cross calibration - Hub

54、ei Province - Loess Plateau - Model prediction - Near infrared - Paddy field soils - Prediction model - Soil moisture analysis Classification code: 944.2 Moisture Measurements - 751.1 Acoustic Waves - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 723.5 Computer Applications - 716 Telecomm

55、unication; Radar, Radio and Television - 708.1 Dielectric Materials - 701 Electricity and Magnetism - 483.1 Soils and Soil Mechanics - 481.1 Geology - 444.2 Groundwater Database: Compendex Compilation and indexing terms, ? 2009 Elsevier Inc. 45. Accession number: 20092412122967 Title: Effects of the

56、 type of the snapping rolls of vertical corn harvester on harvesting performance Authors: Yan, Hongyu1, 2 ; Wu, Wenfu1 ; Han, Feng1 ; Liu, Feng2 Author affiliation: 1 School of Biological and Agriculture Engineering, Jilin University, Changchun 130022, China 2 Jilin Academy of Agricultural Machinery

57、, Changchun 130022, China Corresponding author: Wu, W. (wwfzlb126 ) Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery Abbreviated source title: Nongye Jixie Xuebao Volume: 40 Issue: 5 Issue date: May 2009 Publication year: 2009 Pages: 76-80 Language: Chi

58、nese ISSN: 10001298 CODEN: NUYCA3 Document type: Journal article (JA) Publisher: Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai, Beijing, 100083, China Abstract: The effects of the type of the snapping rolls of the harvester on harvesting performance are significant. For t

59、he vertical corn harvester, the effects of the type of the snapping rolls on harvesting performance were studied through orthogonal test, while the movement parameters of the interaction were analyzed, to determine the optimal production conditions. The pattern and shape of snapping roll on loss rat

60、e is significant; the roll of dome pattern under the conditions of 1000 r/min can achieve the best results. The influence of roll shape on power is significant; the roll of dome pattern under the conditions of 900 r/min can achieve the lowest power consumption. The relationship between working gap o