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[2] Guo zheng-ping,Ai hong.Asynchronous motor direct torque control simulation.Beijing:Beijing university of information science and technology,2012,27(3):1-1
[4] Yao dan,Wang bao-zhong.Asynchronous motor direct torque control.Jiangsu,jiangsu university of science and technology,2012,3:7-10
[5] Li yue,Xie da-qin.Three-phase ac motor direct torque control research.Journal of baoji college of arts and science(natural science edition),2013,2:45-48
[9] Nie xiang-ju,Miao xing-lei,Li ping.Asynchronous motor DTC of Matlab simulation.Journal of heilongjiang institute of engineering,2012,6,26(2):50-55
[10] Li xin-yu,Ma ming-zhi,Liao yan-pei.Induction motor direct torque control system.Electric power science and engineering,2013,7,29(7):27-32

Rheological Property of The Regenerable Polyhydroxy Alcohol Fracturing Fluid System Xiaorui Li1,a, Xiaojia Xue1,2,3,b, Huabo Fan2,3,c, Xiaojuan Lai1,d, Lei Wang1,e 1Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry， Ministry of Education，Shanxi University of Science & Technology, Xi'an Shaanxi, China 2Research Institute of Oil&Gas Technology, Changqing Oilfield Branch Company, PetroChina, Xi'an, Shaanxi, China 3National Engineering Laboratory for Exploration and Development of Low Permeability Oil and Gas Fields, Xi'an, Shaanxi, China axxj_cq@petrochina.com.cn,blixr@sust.edu.cn,c282521251@qq.com,d3578466@163.com, e 05wanglei@sust.edu.cn Keywords: Polyhydroxy alcohol fracturing fluid; Crosslinking; Gel breaking; Regeneration; Rheological property Abstract.
Exprimental Materials Poly(vinyl alcohol) (Technica grade, supplied by Sinopec Sichuan Vinylon Works); organic borate crosslinker(Self designed) [7]; slowly releasing acids breaking agent (Self designed); sodium hydroxide (Analytically pure, provided by Zhengzhou Peny Chemical Reagent Co., Ltd.); experimental water is deionized water.
Acknowledgements This work was financially supported by the national natural science foundation of China (51103081), science and technology plan projects of education department of Shaanxi province (11JS023, 12JK0595) and academic leaders cultivation program of Shaanxi university of Science & technology(XSG2010012).
Journal of Xi an Shiyou University(Natural Science Edition), vol.24 (2009), p. 52 [4] X M Cai, G Liao and J Wang.
Journal of East China University of Science and Technology, vol.31 (2005), p. 553

Research of Alcohol Test System with Alcohol Material Based on Wireless Technology Yaohui Li1, a, Hongyu Wu1,b , Yizhong Wu2,c and Shuting Wang 2,d 1College of Electrical and Information Engineering, Xuchang University, Xuchang 461000, China 2School of Mechanical Science & Engineering, Huazhong University of Science & Technology aliyaohui1008@126.com, b6101252@qq.com, ccad.wyz@hust.edu.cn, dwangst@hust.edu.cn Keywords: Alcohol Test System, Wireless Technology, Data Management System.
Acknowledgment The work is supported by the National Natural Science Foundation (No.50975107, No. 51175198).
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In it, the unit for is μm; is the integrated stiffness; is the temperature difference between meshed gears, unit℃, its scope is 8 ~ 15 ℃; is linear expansion coefficient of the gear material, then steel is. 2) The initial value estimation based on ISO formula According to ISO formula, the initial value of gear modification can be estimated, so that they can differentiate the parameters for the model.
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Other material properties were determined according to the original design of this bridge.
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Acknowledgements The paper is supported by Science and Research Program of Educational Department of Liaoning Province, China (2009A312), National Natural Science Foundation of China(71072081)and National Natural Science Foundation of China (70972008).
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Acknowledgements The work was supported by the National Natural Science Foundation of China (No.51175187), the Science & Technology Foundation of Guangdong Province (No.2012B030900034), and the Science & Technology Foundation of Dongguan City (No. 2012108102010).
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