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Welding Seam Turbulent Tracking Technique for Spiral Welded Pipe Ultrasonic Flaw Detection Wenjie Zhang University of Science and Technology Liaoning, Anshan, Liaoning, 114051, China zhangwenjie889@sina.com Keywords：Turbulent tracking, Servo control, Sensor Abstract.
However, when the external ferromagnetic materials distribute unevenly, it can make the distribution of magnetic field lines within the core mutate, so VA≠VB.
Research Progress in Electromagnetic Tracking Method Chinese Journal of Medical Instrumentation2011.2:119-122 [4] F.

Fiber-optic sensors can be embedded in concrete, carbon fiber reinforced plastic and various composite materials for testing stress relaxation, stress and dynamic load of construction so as to assess the stress of short-term bridge, the construction phase and long-term operating performance of the structures.
References [1] GAO Xian-jun,LI De-xin,LI Na,CHEN Chao,“Algorithm for Frequency-Hopping Signals Detection Based on Suppressing Power Spectrum”, Journal of Jilin University(Information Science Edition),03,2008

Study of MFCS with Disturbances Shujing Wu a and Dazhong Wang Shanghai University of Engineering Science Songjiang, Shanghai 201620, China awushujing168@hotmail.com Keywords: MFCS (Model following control system), disturbances, time-delay.
Okubo, The state predictive model following control system for the linear time-delays, International Journal of Automation and Computing, 4(2007)100-106
Okubo, Design of MFCS with time-delay for chemical processing system, Key Engineering Materials, 467-469(2011)1456-1461

Introduction In the recent industrial settings, pneumatic conveying systems are used in a vivid manner to convey different materials [1-3].
[5] C.Colebrook, C.White, Experiments with fluid friction in roughened pipes, Proceedings of the Royal Society of London, Series A, Mathematical and Physical Sciences. 161 (1937) 367-381
[6] T.Serghides, Estimate friction factor accurately, Chemical Engineering Journal. 91 (1984) 63-64.

Table 1 The loess physical nature indicators table Soil samples category proportion Optimum moisture content（%） Maximum dry density（g/cm3) Liquid limit Plastic limit Soil samples named A 2.704 10 1.998 27.3 21.1 Low liquid limit silt B 2.63 10 1.952 32.3 20.9 C 2.695 11.4 1.925 30.8 15.5 B The optimum moisture content and maximum dry density of soil samples Soil optimum moisture content and maximum dry density which deciding to the compaction characteristics are the important index influencing the soil base material strength and modulus of the size and the important factor[2] .The compacting curve of the three kinds of soil samples is shown in fig 1.
Summary (1) Improving the compaction degree to a certain extent can greatly improves the strength of roadbed and road surface material
The discuss on the highway engineering degree of compaction test evaluation ".shanxi science& technology of communications
"China and Japan highway soil roadbed compaction standard methods ".journal of foreign highway.

Numerous studies have shown that increasing the spindle speed reduces the cutting force [5, 6], and an increase in spindle speed results in a reduced amount of material being removed per cut.
The principal reason for this is related to the material properties of the polystyrene foam.
Journal of Xi'an Jiao Tong University,2007,41 (3):344-382 [2] Xiang Dong, Lost Form Casing of Complex Case CAD / CAE [D], Wuhan: Huazhong University of Science and Technology, 2009:2-3 [3] Xu Yan, Huang Tianyou, Kang Jinwu, Chen Yaojian, Development of CAD Software System Used for Expendable Pattern Casting Process [J], Special Casting & Nonferrous Alloys,2004 , (4): 58 -59 [4] Fang Liang, Sun Kun, XuXuewu, Rapid Prototyping Methods and Processing Equipment of Styrofoam Model: China, ZL031344100 [P], 2006,(03):15 [5] Liu Fang, Cutting Force Analysis and Optimal Process Parameters of CNC [J], Digital Technology and Applications, 2011,12:25 [6] Li Maowei, Tao Hua, Liu Xiaozhi, The Impact of Cutter Overhang Amount and Spindle Speed on Cutting Force [J], Modular Machine Cutter & Automatic Manufacturing Technique 2010, (9): 23-26 [7] Liu Kuainan, Research on WPC Cutting Force and Surface Roughness [D], Nanjing: Nanjing Forestry University, 2012:21-23 [8] Wu Wenti, Liu Xiaoting, Determining

High-speed machining time model prediction of combination framework based on BP neutral network Zhenbo Wanga , Shuzhi Lib , Liang Zhangc Harbin university of science and technology of China awzb3328@163.com, bzjlsz123@126.com，czlhkcx09@126.com Keywords：BP neural network, High-speed NC machining, Analysis Abstract：The process parameter prediction and analysis of high-speed NC machining of cast aluminum combination framework is one of the important research directions of mechanical processing.
Materials protection, 2003, 4 (9) : 1-4
Journal of engineering technology, 2008, (2) : 1-2

Extraction of β-Sitosterol from Jatropha Seed Oil Shuyu Liu1, a, Hao Lu1,b , Lijie Sun1,c , Xin Guo 1,d 1Shanghai University of Engineering Science, Shanghai 201620, People’s Republic of China ashuyuliu1219@yahoo.com.cn, blu041406227@yahoo.com.cn, csunlijie1990@126.com, d1107627479@qq.com Keywords: Jatropha seed oil, Extraction, β-Sitosterol Abstract.
Material and Methods Plant material.
L: Journal of Instrumental Analysis Vol.22 (2003), p.98, In Chinese.

Removal of Ammonia Nitrogen by Combining the Ammonia Stripping with Electrochemical Oxidation Xiujuan Yu*a, Lihong Ning b 1Department of Environmental Science and Engineering, Heilongjiang University, Harbin, china,150080 2Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion, Harbin, China yuxiujuan@hlju.edu.cn, ningxiaosi@126.com Keywords: Ammonia nitrogen wastewater; Ammonia stripping; Electrochemical oxidation Abstract.
Lopes: Journal of Hazardous Materials 186 (2011), 1033–1041

Acknowledgment The authors would like to thank the staffs from Electronic Research Center (ERC) that have been helpful for this research, which was funded by Thailand Graduate Institute of Science and Technology (TGIST) References [1] Athirot Mano, Santi Chatruprachewin, Laddawan Supadee, Chaba Suriyaammaranon and Wisut Titiroongruang, Independent Directional Magnetic Field Measurement Technique, Proceeding of the 33rd Electrical Engineering Conference(EECON-33)(2010), (in Thai), pp. 1369-1372, (2010)
[2] Athirot Mano, Narin Atiwongsangthong and Wisut Titiroongruang, Improvement of Independent Directional Magnetic field Measurement Technique with Hall sensors in Journal of Advanced Materials Research, Vol. 811, pp. 347-352, (2013)