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Study of pressure characteristics in PWM controlled variable rate spraying system Haihong Liu1, a, Xinhua Wei1, b*, Jinfeng Du1, c and Jiabao Huang2, d 1Key Laboratory of Modern Agriculture Equipment and Technology, Ministry of Education, Jiangsu University, Zhenjiang 212013, China 2 Shandong Academy of Agricultural machinery sciences, Jinan 250100, China a liuhhjiayou@163.com, b wei_xh@126.com, c 991505972@qq.com, d 9362746@qq.com Keywords: PWM, Variable Rate Spraying, Solenoid Valve, Hydraulic Impacts, Simulation Abstract: When solenoid valves operate continuously to adjust spraying quantities, it generates hydraulic impacts in PWM controlled variable rate spraying system.
Materials PWM controlled variable rate spraying system.
Acknowledgments This work was financially supported by the National Natural Science Foundation of China (51275215), Jiangsu Province Science and Technology Support Program (BE2013401) and A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions .
Journal of Bionics Engineering, 2010, 7(3): 276-283
Journal of Engineering Thermophysics, 2012, 33(6): 957-960.

Wuhan Environmental Protection Science Research Institute, Wuhan, China. 430015; 3.
The aim of this study is to explore the character of nitrogen release in sediments and promote the work of remediation. ③ ① Materials and methods ② Study area and sampling Sediments were collected at the center of Guozheng Lake(G) and Miao Lake(M), in addition of South Lake(S), the sample sites are shown in Fig1.
Journal of Great Lakes Research, 27, 84–97
Journal of Shandong JianZhu University, 2010, 25(1):1673-7644
Shanghai Environmental Science, 2010, 29(5):197-201

Journal of Materials Science, 16(9), 2485-2494
IEEE Transactions on Nuclear Science, 32(6), 3916-3920
Journal of Vacuum Science & Technology, 20(3), 743-746.

Simulation and Analysis of a Motorcycle Engine Production Cell Xiao-dong Zhang1, a, Dong-fang Zhao2, b, Xun-de Xie2, c, Tian Yu2, d 1School of Economics and Management, University of science & technology Beijing Beijing, P.
(3) Model execution: Based on the simulation model, simulation can be executed in the software platform, by setting up running parameters such as production orders, materials, and running time.
This paper is based upon research work supported by the National Natural Science Foundation of China No. 70971146 and Program for New Century Excellent Talents in University of China (NCET-08-0608).
Journal of Applied Sciences-Electronics and Information Engineering, Vol. 26 (2008), p.100-105
International Journal of Operations &Production Management, Vol. 19(1999),p. 1318-1334.

Morphology of Primary Silicon and its Growth Mechanism in Hypereutectic Al-Si Alloys during Melt Overheating Treatment Rong Zhang 1,a, Zhilong Zhao 1,b, Taiwen Huang 1.c, Lin Liu 1,d 1 School of Science, Northwestern Polytechnical University, Xi'an 710072, P.
Acknowledgments This research was sponsored by National Natural Science Foundation of China (NSFC) with grant No.50395102 and State Key Fundamental Research Plan with grant No. 2000067202.
Cao, and L.Liu: The Chinese Journal of Nonferrous Metals Vol.10 (2000), p. 91 [5] R.
Journal of Aeronautical Materials Vol. 15 (1995), p. 39 (In Chinese) [6] N.
Min: The Physical Basis of Crystal Growth, (Shanghai Science and Technology Press, Chinese 1982) [7] J.C.

Thermo- and Photo- Degradation of LDPE and PP Films Using Metal Oxides as Catalysts Sarinya Shawaphun1,a, Thara Manangan1,b and Sirirat Wacharawichanant2,c 1 Department of Industrial Chemistry, Faculty of Applied Science, King Mongkut's University of Technology North Bangkok, Bangkok, 10800 Thailand 2 Department of Chemical Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom, 73000 Thailand a sarinya73@yahoo.com, bjxudel@yahoo.com, ciamsirirat@yahoo.com Keywords: pro-oxidants, catalysts, photo-degradation, polyethylene, polypropylene Abstract.
Experimental Materials Virgin grade LDPE (IRPC) and PP (IRPC) were used for the preparation of films.
Acknowledgements The authors would like to thank National Nanotechnology Center (NANOTEC), the National Research Council of Thailand (NRCT) and the Faculty of Applied Science, King Mongkut's University of Technology North Bangkok for the financial support of this project.
Lin, Journal of Applied Polymer Science, Vol. 63 (1997) p. 81 [10] H.
Zhu, Journal of Molecular Catalysis A: Chemical, Vol. 268 (2007), p. 101 [12] H.

From the very beginning, the new technology receives much attention from specialists of science and industry and becomes an important research direction in the field of process tomography.
Theory and Composition of ECT ECT has different dielectric constant according to the measured materials phases.
Acknowledgements This work was supported by the National Natural Science Foundation of China (51179144) .
Q.Sun, A Novel Method of Plotting Sensor Sensitivity Field and Image Reconstruction Algorithm for Electrical Capacitance Tomography System[J], Chinese Journal of Science Instrument,2005.3,26(3):229~231
Shao and Lv Decai, New Calculation Method of Sensitivity Distribution for ECT[J].Chinese Journal of Scientific Instrument,2009.10,30(10):2023～2025

Calculation of rayleigh-wave phase velocities due to models with a high-velocity surface layer:  Journal of Applied Geophysics, v 96, p 1-6, September 2013 [2] A.
Use of rayleigh waves for investigating nonlinear elastic properties of surface layers of structural materials.
Institute of Electric Welding, Academy of Sciences of the Ukraine, Kiev.
Journal of Information Sciences 1998, vol. 108, pp219-240
[7] Zeng Wei, Yanyong Shi.The development and application of virtual instrument technology. western science and technology in China, 2010, 9 (30): 27 ~ 28

Design of Weighing Sensor Used for the Weighing of the Fixed-quantity Bucket Loader in the Main Shaft Lifting Systems Chunhui Liu1, a, Fenglong Zheng2,b 1,2College of Information and Electrical Engineering, Shandong University of Science and Technology, Qingdao, Shandong ,in China, 266590 aXHL79@126.com, bflzheng@sdust.edu.cn Keywords: Weighing sensor, Stable frequency output, Calibration, Error analysis Abstract: The designed weighing pressure sensor can adapt to the coal mine underground complex environment.
The working point of sensor’s deformation material is more lower than its elastic limit, zero drift is more smaller and its stability is better.
Eq.3 is derived in a variety of reasonable hypothesis conditions, but it is not a standard linear relationship between P and Δ(f2) under the influence of the actual factors such as structure type, material properties, heat treatment , processing technology, energizer influence etc.
Acknowledgements This work was financially supported by the Chun Lei Project of Shandong University of Science and Technology.
References [1] Safety Regulations in Coal Mine, (Coal Industry Press, Beijing 2004), In Chinese [2] Fenglong Zheng: submitted to Journal of Instrument Technology and Sensor (1993) [3] Chengying Hua: Basis of Analogue Electronic Technique, (Higher Education Press, Beijing 2006), In Chinese [4] Yuliang Cui:Resonant sensor Theory and Testing Technology, (Coal Industry Press, Beijing 1997), In Chinese [5] Fenglong Zheng: submitted to Journal of Coal Mine Science and Technology (2002)

Materials and Methods Zophobas morio and wheat bran were purchased from DAFA market Harbin.
Acknowledgements This work was financially supported by the special research program for non-profit forestry of State Forestry Administration (201204501) and the Science and Technology of Heilongjiang Province (GA09B203-1), China.
Chinese Journal of Pesticides, Vol.45 (2006), p.8-11(In Chinese)
Foreign Medical Sciences·Section of Pathophysiology and Clinical Medicine, Vol.23 (2003), p.73-75(In Chinese)
Journal of Southwest Agricultural University (Natural Science), Vol.26 (2004), p.423-425.