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Online since: August 2013
Authors: Xiao Wen Zhang, Yan Peng Tan, Jun Wen Lv, Dong Shan Tang, Qin Su
Experimental Materials and Instrumentation.
As seen in Fig. 2(a), Before loaded the colloids surface is rough, uneven, adhered with a large number of sheet-like crystalline material, contain iron oxy-hydroxides such as goethite, akaganeite, ferrihydrite, magnetite and hematite which show high specific surface area and their surface is positively charged at low and circum neutral pH values, which increases the contact area and can improve metal ion adsorption.
Fig. 2(b) shows that after loaded the colloidal surface covered with small size particles of dense which adhere on sheet-like crystalline material and pole to make them disappear or diminish.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (grant no. 10975070, 51074093) References [1] B.C.
Journal of Contaminant Hydrology, Vol. 52 (2001), p. 109-135
Online since: August 2014
Authors: Pavol Božek
Control of a robotic arm on the principle of separate decision of an inertial navigation system Pavol Božek Institute of Applied Informatics, Automation and Mathematics, Faculty of Materials Science and Technology, Slovak University of Technology, Hajdóczyho 1, 917 24 Trnava, Slovakia pavol.bozek@stuba.sk Keywords: INS, gyroscope, accelerometer, dynamic model, PID controller, MATLAB/Simulink Abstract.
These parameters can be calculated via geometry, dimensions and the density of the arm material.
The geometric model is appropriately positioned, the numeric value of the arm material density is assigned (subsequently the program automatically calculates the position of the centre, the weight and moments of inertia to the centre axes), then by the rotation of a geometric bond it is fixed to the stable space and the place of driving moment is prescribed.
Virgala, Modeling of Dynamic Systems in Simulation Environment MATLABSimulink – SimMechanics, American Journal of Mechanical Engineering.
Online since: June 2008
Authors: Jeong Woo Han, Seung Ho Han, Yong Yun Nam
Since both techniques make it possible to give the weld not only a favorable shape, which reduces the local stress concentration, but also a beneficial compressive residual stress to the material surface; the fatigue strength is remarkably increased after the treatment.
The material used in the welded joints was SM490B steel with a yield stress of 352MPa and tensile strength of 514MPa.
Acknowledgement The present study is a part of a project "Technology of Safety and Reliability for Magnetic Levitation Vehicle", being carried out with financial support from the Korea Research Council for Industrial Science & Technology (KOCI), which the authors gratefully acknowledge.
References [1] Haggensen, P.J. : Welding in the World, Vol.47, pp. 43-63 (2003) [2] Haggensen, P.J. et al. : IIW Commission XIII, XIII-1815-00 (2001) [3] Roy, S. et al. : International Journal of Fatigue, Vol.25, pp. 1239~1247 (2003) [4] Statnikov, et al. : IIW Doc.
XIII-1667-97 (1997) [5] Kirkhope, et al. : Marine Structures Vol.12, pp.447-474 (1999) [6] Han, J.W. et al. : Key Engineering Materials Vol.297-300, pp.781-787 (2005) [7] Han, S.H. et al. : International Fatigue Congress 2006, Atlanta, U.S.A., (2006) [8] Lawrence F. et al. : ASTM STP 776, pp.33-43 (1982) [9] Peterson, R. : Notch Sensitivity, McGraw Hill, New York, pp. 293-306 (1959) [10] Smith K. et al. : J.
Online since: September 2013
Authors: Xiang Guang Chen, Lei Wu, Qiang Yang, Han Liu
In order to find the material which can meet the requirements of filter and can be repeatedly used for a long time, we do a lot of experiments, and find the material for filtering finally.
By measuring the refractive index of material to identify the composition or to determine the purity and concentration or to judge the quality, this method called the refraction method.
The legacy cleaning material on the sensor will contaminate or dilute the sample solution.
[2] LImin Hao,Jinxun Sun,Xinhui Xing,Zheng Li,Guotai Zhou, Split pleat fungus mycelium and extracellular polysaccharide fermentation conditions research, Journal of food and fermentation industry,2008,pp.56-62
Engineering in Life Sciences, 2005,pp.35-39
Online since: December 2012
Authors: Zhuang Bin He, Feng Qin, Qiong Nian Huang
Synchronous Surface Composite Structure Dressing Pavement Raw Materials In this experiment, lime stone with 10~15mm of average grain size were prepared, the amount of lime stone was 5.82kg/m2, and each performance index are listed in Table 1.
Acknowledgements Fund Projects: Scientific and Technological Project of Traffic of Guangxi, No. ((2009)95-08); Guangxi Natural Science Fund Projects, No.(2010GXNSFA013037).
Reference [1] Feng QIN, Hui-ming BAO, Journal of Guilin University of Technology, Application of Synchronized Crushed Stone Seal Coat New Technology, 01 (2007) 69-72.
Pennsylvania Dept of Transportation, Harrisburg.Bureau of Constructionand and Materials.
Online since: June 2012
Authors: Gan Qing Zuo, Song Wang, Chao Xie, Yang Wang, Yan Hui Shi, Jian Zhu Ye
Acknowledgements This project is supported by the National Natural Science Foundation of China (Grant No. 50777014) and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20040214003).
[3] Jiaxiang Yang and Xiaochun Chi: Theories on Physical Characteristics for Electrical and Electronic Materials (Ministry of Mechanics, Beijing, 1996) [in Chinese] [4] Thomas Meissner and Frank J.
Kassem: Materials Letters Vol. 57 (2003), p. 1595
Lyashchenko: Russian Journal of Inorganic Chemistry.
Online since: May 2003
Authors: Suk Young Kim, S.H. Oh, J.W. Kim, Tae Hoon Choi, Sang Young Lee, Chang Kuk You
Journal Citation (to be inserted by the publisher ) Copyright by Trans Tech Publications Hydroxyapatite Coated Porous Alumina as a New Orbital Implant C.K.You 1,4, S.H.Oh 1, J.W.
Lee 2, and S.Y.Kim 1 1 School of Materials Science Eng, Yeungnam University, Kyongsan, KOREA, sykim@yu.ac.kr 2 School of Ophthalmology, Yonsei Medical University, Seoul, KOREA, sylee@yumc.yonsei.ac.kr 3 Department of Ceramic Eng., Taegu Technical College, Daegu, Korea, cth39@chollian.net 4 Lucid Korea Co.
Materials and Method Polyurethane (PU) sponges with different pore size ranging approximately from 400 µm to 1.2 mm were ultrasonically treated in 10% NaOH solution before using, and were cleaned in flowing water.
Online since: December 2009
Authors: Bai Ping Xu, Yue Jun Liu, Jin Ping Qu
Periodic Mixing Performance in a Square Cavity for Different Frequencies XU Baiping1,a, LIU Yuejun2,b, QU Jinping3,c* 1Chemical Engineering Department of Guangdong Industry Technology College, Guangzhou, 510300, Guangdong, China 2Key Laboratory of New Material and Technology for Package, Zhuzhou Institute of Technology, Zhuzhou, 412008, Hunan,China 3The National Engineering Research Center of Novel Equipment for Polymer Processing, The Key Laboratory of Polymer Processing Engineering of Ministry of Education, South China University of Technology, Guangzhou 510640, China axubaiping2003@yahoo.com.cn, byjliu_2005@126.coml, cjpqu@scut.edu.cn Keywords: Fluid mechanics, Laminar flow, Interface tracking, Numerical analysis, Nonlinear dynamics Abstract.
In the past few years, the theory of the chaotic mixing has been mature and widely used in the real engineering, especially in the mixing of high viscosity fluid such as polymer blending, and in the processing of delicate shear-sensitive materials [2-4].
In the language of dynamical system, the results of geometric and statistical properties imply that in the chaotic zones material is stretched along one dimensional unstable manifold with the self-similar structure related to topological entropy rather than Lyapunov exponent [3, 4].
Aref: Journal of Fluid Mechanics.
Muzzio: Chemical Engineering Science, Vol.56(2001), p. 4893
Online since: July 2011
Authors: Xiang Qiang Zhong, Li Dong Liang
It can put a series of irregular parts in given materials, find out the optimal nesting of parts, have a highest material utilization ratio, so as to save material and improve the economic efficiency.
Acknowledgements This work was financially supported by the Mechanical Manufacturing & Automation Anhui Provincial Key Subject, Anhui University Provincial Science Research Project (KJ2011B015).
[7] Bullnheimer B, Hartl R F, Strauss C.: Gentral European Journal for Operations Research and Economics, Vol. (7) (1999), p.25-38.
Online since: September 2013
Authors: Kai Zhang, Jie Wang
Photovoltaic cell mathematic model Photovoltaic cells are produced by photovoltaic effect of semiconductor materials, the so-called photovoltaic effect refers to semiconductor materials that absorb light energy generates electromotive force phenomenon, so photovoltaic cell is itself an P-N node, its equivalent circuit composes of photogenerated current source and some resistance [4].
Journal of solar energy, 2010,33 (3): 478-484
Beijing: Science Press, 2010: 20-28
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