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Online since: March 2010
Authors: Ze Kun Yao, Hong Zhen Guo, Chun Qin, Jing Xia Cao
Both strong and light materials are usually needed in order to meet this demand.
For example, the compressor disk can be made into dual alloy disk (DAD) with higher strength and lighter weight materials [1-3].
References [1] J.C.Williams, Aerospace Thermal Structures and Materials for a �ew Era, edited by Earl A.
McColvin: Materials Science and Technology, Vol. 21 (2005), p. 218 [3] F.
Gene: Advanced Materials & Processes, May, 2005, 35
Online since: March 2010
Authors: Jie Zhou, Song Xue
Study on the differential thickness ratio effect on formability of TWB based on numeric simulation Xue Song 1,2, a, Zhou Jie 1,b 1 College of Material Science and Engineering, Chongqing University Chongqing, China 2 School of Manufacturing, Southwest University of Science and Technology, Sichuan, China a xuesong2004@126.com, ba65105410@cta.cq.cn Keywords: tailor-welded blank; differential thickness ratio; numeric simulation; square box Abstract.
Introduction Tailor welded blanks (TWBs) are composed of more than two materials with similar or different strengths or thicknesses joined together to form a single part before the forming operation.
The material type of punch, die and blank holder choose rigid material.
The material type of sheet chooses elastic-plastic material and adopts Belytschko-Tsay shell element.
The parameters of the two materials are shown as Table1.
Online since: August 2014
Authors: Jaime Duque, Erika Ruiz, William Aperador
The tribo corrosion is associated with the degradation of the materials when the effect of wear and corrosion are combined simultaneously [6].
-Il Kim: Materials Science and Engineering: C, Vol 32 (2012), p 1564 [3] W.
Hui: Materials & Design, Vol 37, (2012), p. 161 [4] C.
Szpunar: Materials Science and Engineering: C, Vol. 28 (2008), p. 94
Amaya: Journal of Physics and Chemistry of Solids, Vol 71 (2010), p. 1754
Online since: October 2012
Authors: Ying Zhang, Qiao Zhou
Managers should put more human resources, material resources and money into the conservation and sustainable development of the tourist attractions.
Acknowledgements This work was supported by Major International Joint Research Program of the National Natural Science Foundation of China (71020107027), National High Technology Research and Development Major Program of China (Program 863) (2008AA04A107), Project 985 and 211 of Sichuan University, and Special Research Fund Program of Higher Education of China for the Doctoral Subject (20110181110034).
Journal of Huazhong normal university(nat. sci).
Journal of Henan University of science and technology (social science).
Online since: January 2012
Authors: Jin Lan Li, Quan Sheng Liu
Introduction Due to the complexity and unpredictable of geotechnical engineering, the material parameters determination of geotechnical engineering has become a major obstacle for people to quantitatively recognize the various behavior and phenomenon of the engineering field.
* This work is supported by China National Natural Science Foundation (Grant No.: 50574087), and knowledge innovation project of Chinese Academy of Sciences (Grant No.: kzcx2-yw-116) References [1] Yang Zhifa, Xiong Shuncheng, Wang Cunyu.
Some Consideration of the Back-analysis from Displacements [J], Chinese Journal of Rock Mechanics and Engineering, 1995,14(1)11-16
Back Analysis of Viscoelastic-plastic Parameters of Surrounding Rock in Underground Engineering[J], Journal of Hydraulic Engineering, 1990,(9)11-15
FEM Calculation of Non-stationary Creep Constitutive Model of Rock Mass and Displacement Back Analysis[D],Qingdao, Shandong University of Science and Tecnology,2005
Online since: October 2013
Authors: Can Cui, Rong Bin Li
Comparison and Research of Thermocouple Measuring Temperature Curve and Theoretical Temperature Curve in Grinding Li Rongbin1, a, Cui Can2, b 1School of Mechanical Engineering,Shanghai DianJi University,Shanghai,China 2School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai,China alirb@sdju.edu.cn, b823514305@qq.com Keywords: thermocouple;grinding temperature;influencing factor Abstract: A Thermocouple temperature measurement test of grinding for steel 45 was done to analyse the reason of errors between experimental temperature curve and theoretical temperature curve derived by triangular distribution heat source model.It was shown that,errors of influencing factors,such as grinding heat flow,thermal conductivity,density,specific heat capacity,limited grinding energy and effective abrasive contact radius,have certain effect on temperature measured by thermocouple.It was found that the influence of grinding heat flow into a workpiece is the biggest
Acknowledgements This work was supported by the National Natural Science Foundation of China(51072113),the Innovation Program of Shanghai Municipal Education Commission(13ZZ143) and Shanghai University Knowledge Service Platform Project of Shanghai Municipal Education Commission(ZF1225).
References [1] TANG Yanling,HUANG Hui,Present Situation and Development in the Research of Grinding Temperatures,Superhard Material & Gem,2003,15(4) ,pp.29-32
[3] XIE Guizhi,HUANG Han,XU Xipeng and HUANG Hongwu,Study on the Temperature in the High Efficiency Deep Grinding of Silicon Nitride,Chinese Journal of Mechanical Engineering,2009,45(3),pp.109-114
[9] Xipeng Xu,Stephen Malkin,Comparison of Methods to Measure Grinding Temperatures,Journal of Manufacturing Science and Engineering,2001(123) ,pp.191-195.
Online since: October 2010
Authors: Xia Wang, Shi Lei Sun
According to famous international market investigation and study company AC the Nielsen company (ACNielsen) in 2007 investigates the material to demonstrate that the alliance success ratio has 30% probably.
Therefore, whether can the enterprise the ability to select software outsourcing alliance, need to establish set of systems, the science evaluating indicator system, adopts the science the assessment method, constructs the reasonable decision model.
Acknowledgement: This work is supported by Soft Science Project of Hebei Province: Research on IT outsourcing service ability of the structure and the dynamic evolution model elements( G2010000166) ; Fig.4 Using ANP model ability software outsourcing alliance decision-making not weighting super matrix Fig.5 Using ANP model ability software outsourcing alliance decision-making limit super matrix Fig.6 software outsourcing alliance decision-making priority sorting result Reference [1] Bill Vassiliadis et al.
Transaction attributes and software outsourcing success: an empirical investigation of transaction cost theory [J].Information System Journal, 2002, 12(2): 153-181 [5] Hafeez K et al.
International Journal of Information Management, 2006, 26(3): 249-256 [7] William R.
Online since: September 2013
Authors: Wen Huan Yang, Hai Xu Chen, Chun Ren Fang, Shuang Xie
New type of two degree of freedom motor three-dimensional tooth layer field application and solution YANG Wenhuan a, CHEN Haixu b, XIE Shuang c, FANG Chunren d School of Optical-Electrical and Computer Engineering University of Shanghai for Science and Technology, Shanghai, China a ywh1ywh@sina.com, b hesue_chan@126.com Keywords: two-degree of freedom, 3d teeth layer parametric database, FEM, Quasi-Newton method, Non-linear equations Abstract.
Introduction With the development of science and technology, electromechanical system becomes more complicated, some precision device for driving performance requirements are higher and higher, the single degree of freedom motor is difficult to meet their needs, therefore, research and development of new type of multi degree of freedom motor has a high theoretical and practical significance.
Assuming that the motor is the same material, and some tooth profile of stator in line is as same as that of stator in rotation.
Journal of Applied Science, 2007, 7(22) : 3400- 3409 [6] STEIN D, SCHEINERMANER, CHIRIKJIAN GS.
Journal of Applied Physics.
Online since: February 2012
Authors: Xue Jing Liu, Xiao Fei Gao, Bao An Li
Study on Calcium and Magnesium Fouling of Vacuum Membrane Distillation Baoan Li 1, a, Xuejing Liu 2,b and Xiaofei Gao 3,c 1State Key Laboratory of Chemical Engineering, and Tianjin Key Laboratory of Membrane Science and Desalination Technology Tianjin University Tianjin 300072, PR China 2,3Chemical Engineering Research Center, School of Chemical Engineering and Technology Tianjin University Tianjin 300072, PR China abaoan.li@gmail.com, bliuxuejing2003@163.com, cgaoxiaofei041148@yahoo.com.cn Keywords: vacuum membrane distillation (VMD); calcium and magnesium fouling; desalination; hollow fiber Abstract.
Material PP Thickness/μm 220 Inner Diameter/μm 610 Out diameter/μm 1050 Mean pore size/μm 0.2 porosity/% 50-60 Tab.1.Details of the Hollow Fiber Membrane Tab.2.Details of the Rectangular Module Effective Fiber length/mm 65 Effective membrane area/m2 0.0334 Filling fraction/% 17 Module Form Internal pressure type Fig.1.Experimental setup for vacuum membrane distillation.
Journal of Membrane Science, 1996, 120, 123-133 [2] David Wirth, Corinne Cabassud.
Sirkar, Novel membrane and device for vacuum membrane distillation-based desalination process[J], Journal of Membrane Science, 2005, 257: 60-75 [5] S.
Online since: June 2011
Authors: Ya Juan Chen, Yan Yang, Ye Qin Wang
Only fresh eggs are edible and can be used as raw material, while stale eggs should be discovered in time and removed at last. (2) The size of egg.
Acknowledgment The research reported in this paper is supported by the Projects in the Huaian City Science & Technology Pillar Program (Grant No.SN0965) and the Natural Science Foundation of the Jiangsu Higher Education Institutions of China (Grant No. 10KJD520001).
[3] Youxian Wen,Qiaohua Wang,”Study on Detecting Dilapidation of Duck Egg by Audio Signal”, Journal of Huazhong Agricultural, Papers 21 (3), 285-287 (2002)
CGP,1980, (13):222-241 [10] Yikui Liao,Zhiwen Wang.”A New Method for Feature Extraction of Color Image and Its Application”Journal of Guangxi University For Nationalities(Natural Science Edition),Papers 9 (3), 48-52 (2003).