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Analysis and Modeling of the Thermal Errors of Carriage System of a Precision Machine Tool Driven by Linear Motor Shuai Yuan1,a, Fangyu Peng1,b, Lin Zhou1,c, Peifeng Yao1,d 1 National Numerical Control System Engineering Research Center, Huazhong University of Science and Technology, Wuhan 430074, China axiaoshuaihust@hotmail.com, bzwm8917@263.net, czhoulin_1107@126.com dAlexpdf@163.com Keywords: Linear motor, Thermal model, Thermal key points, Genetic algorithm Abstract.
(8) Where Lg is the thickness of the void space between the contact surfaces of the primary part and carriage, Ac is the real contact of the joint, Av is the void area of the joint, k1, k2, kf are the thermal conductivities of the materials of the two parts and the medium, respectively.
Zhu: Chinese Journal of Mechanical Engineering, Vol. 39 (2003) No 3, pp. 81-84, (In Chinese)
Ziegert: Precision Engineering, Vol. 24 (2000) No 3, pp. 338-346
Lu: Journal of Mechanical Engineering, Vol. 47 (2011) No 13, pp.175-179, (In Chinese)

Robust Design for Steering Mechanism by using Points of Monomial Cubature Rules Donglai Wei a, Su Zhaob, Zhiying Chen, Rongbin Li School of mechanical engineering, Shanghai Dianji University, 88 Wenjing Road, Shanghai, China 200245 aweidl@sdju.edu.cn, bzhaosu@sdju.edu.cn Keywords: Finite element method, Robust design, Steering mechanism, Lock force, Monomial cubature rules.
Steering mechanism is an important part of car driving system and the lock force is a key parameter to protect driver in the case of a frontal impact.
The advantage of the method is to reduce the intensive computational demand of uncertainty propagation by construction of PCE using points of MCRs, and the accuracy is enough for engineering problems.
Both the yield stress of the material and the friction coefficient follow a probabilistic distribution.
Tatang: Direct Incorporation of Uncertainty in Chemical and Environmental Engineering Systems.

Influence Analysis of Crack Depth and Position on Asphalt Pavement Structure with 3D Finite Element WANG Peng1,a 2 Cui Can2,b 1,2School of Water Conservancy and Environment Engineering, Zhengzhou University, Zhengzhou 450002, China awangp@zzu.edu.cn bcuican2008loves@126.com Keywords: highway engineering; surface-initiated cracking; asphalt pavement; finite element method; tire pattern; eccentric load Abstract: In recent years the research on Surface-initiated longitudinal cracking along wheelpath (or Top-Down cracking) is become a fresh hotspot in the field of pavement damage focused by international asphalt pavement engineering.Because the traditional load is the vertical surface load with uniform tire pressure, this loading is applied at only one position and no effort is made to distinguish between tire pattern.The traditional method can’t explain the mechanism of the top-down cracking.
With the increase of the cracks’ depth, the adverse influence of the shear stress becomes weaker and weaker.So the key of controlling the cracks in the surface layer is prevention.
So the key of controlling the cracks in the surface layer is prevention.
Referencr books: [1] Sha Qinglin.Early failure phenomenon and precaution of asphalt pavement of expressway[M].Peking:China communications press,2001 [2] Lu Hui,Sun Lijun.Analysis on asphalt pavement under tyre load by 3D finite element method[J].China civil engineering journal, 2004，37（7）：64-67 [3] Sun Lijun.Theory of behavior of asphalt pavement structure[M].Shanghai:Tongji university press: 2003,109-122 [4] Xie shui-you.
Journal of Chang'an University(Natural Science Edition), 2003,5(3):15－20 [6] Yue，Zhong Qi，Svec，Otto J．.Effects of tire-pavement contact pressure distributions on the response of asphalt concrete pavements[J]．Canadian Journal of Civil Engineering，1995，22(5)：849—860 [7] Sebaaly， Peter，Tabatabaee，Nader．Effect of tire pressure and type on response of flexible pavement[Z]．Transportation Research Record,1989，No．1227：ll5—127 [8] Wang Yang,Liu Zhaojin.The influence of characteristics of vehicle load on pavement structure [J]．Liaoning construction material，2004，3(3)：69-70 [9] Bi Yufeng,Sun Lijun.

Study on Typical Traditional Silk looms in Shanxi Province Lu Wei1, a, Yang Xiaoming2,b 1.2Textile College, Donghua University, Shanghai, 201620, China areed@mail.dhu.edu.cn, bynide@sina.com Key words: traditional loom; textile technology; silk weaving; textile engineering; Abstract.
This thesis focuses on the key parts and functions of silk looms, explains the operation mechanism, and also compares the similar looms in different regions.
Taking the traditional textile industry for example, there are many different bases and centers, for example, raw materials production, silk reeling, silkworm breeding, knit silken, weaving cotton cloth and embroidery.Therefore, the prosperity of the commodity economy push ahead the development of traditional handicraft industry.
According the precious materials, including Tian Gong Kai Wu, Zi Ren Yi Zhi and other scholar’s explanation[2], the laying loom was originated from Ming dynasty, and came down until 1980s.
And it is the important part of Chinese traditional textile engineering.

The key technologies of SOI micro-accelerometer front release process ZHANG Zhao-yun, SHI Zhi-gui, HE Xiao-ping, DU Lian-ming, ZHANG Hui, PENG Bo* Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621900, China Keywords –MEMS; SOI; Micro-accelerometer; Positive release process.
This paper discusses the key technical issues of the front release process, and successfully developed this process.
Through the study, we obtain the following conclusions[6]: with different materials as the substrate material, the corrosion resistance of the metal electrode is not the same, Tiw as a Substrate material the corrosion resistance of the metal electrode can be better than Cr, Mo as a primer material.
SOI Micro-accelerometer fabrication with anti-footing technique［J］.Nanotechnology and Precision Engineering, 2010, 8(4): 330-334
Nanotechnology and Precision Engineering，2007，5（3）：169-172 [9] WU Changju,MA Huilian,JIN Zhonghe.

of paper materials according to the children’s experience.
Result in the same performance, paper materials take 20% to 30% work of the wooden ones, thus high portability can be manifested by paper materials.
Financially thrifty.The financial advantage of paper material is another part of its green feature, the function of recycle and reuse of paper material is the key to its economical character.
On the other hand, paper materials are environmental friendly, economically green and convenient, these principles are key to choose the right materials when designing furniture.
Dihu Xiao, On Green Indoor Design [D]Shanghai, Chinese academy of metallurgy Shanghai. 2000 [2] Shaoshi He, On Designing and Producing paper furniture [D] Chengdu: Art and Media department, Southwest Jiaodao University.2008 [3] Catharine Fishel,Designing for Children: Marketing design that speaks to kids [M]Shangai People’s Fine Arts Publishing House, 2003 [4]Bijuan Luo, Humanity Design in Children Products [J] Package Engineering [5] Shengyou Huang, Xiansan Zhang, Liping Lin.

EFFECTIVE MANAGEMENT OF ENGINEERING PROJECTS USING 4Es MODEL George Agyekum-Mensah1*,a, Andrew Knight1,b, Christine Pasquire1,c and Christopher Coffey1,c *Corresponding Author, 1School of Architectural, Design and the Built Environment, Nottingham Trent University, Burton Street, NG1 4BU, UK ageorge.mensah@ntu.ac.uk, bandrew.knight@ntu.ac.uk, cchristine.pasquire@ntu.ac.uk and dchristopher.coffey@ntu.ac.uk Keywords: Engineering, Management, Project, TCQ and 4Es Abstract.
Time, Cost and Quality (TCQ) has become the de facto of managing projects, including engineering projects and it is also used as performance assessment model.
In this response, this study develops a conceptual model ‘4Es’ (Effective, Economic, Efficient, Ethics) for effective managing engineering projects and for performance assessment.
Introduction In this study, a project denotes architecture, engineering and construction (AEC) projects.
Thus achieving VfM in operation management based on spending less (economic), effective and efficient use of material and resource [A-M].

Comparative Analysis of Gaussian Minimum Shift Keying and Binary Differential Phase Shift Keying Signalling Schemes with Maximal Ratio Combiner over Rayleigh Environment Z.K.
Materials and Methods Mobile radio channel simulation was used because the system tests and evaluation which are less expensive and more reproducible than field trials can be easily carried out.
Izz Eldin : Performance of Orthogonal Frequency Division Muiltiplexing (OFDM) under the effect of wireless transmission System Drawbacks, Sudan Engineering Society JOURNAL Vol. 52, no 49, (2007) p. 17-26 [5] M.
Mohana : Simulation of Flat Fading Using MATLAB for Classroom Instruction, Electrical and Computer Engineering, Drexel University.
Adeyemo : ‘Performance of Binary Phase Shift keying(BPSK) and Quartenary Phase Shift Keying (QPSK) Signalling Schemes in Fast and Frequency Non- Selective Rayleigh fading channel with Decision Feedback Equalizer (DFE) at the Receiver’ Advanced Materials Research, Trans Tech Publications, Switzerland, vols.62-64, (2009) p.99-104

The method of surveying data processing about engineering distortion was investigated.
Introduction In general, the engineering geometric distortion is measured by surveying.
Usually surveying data of engineering distortion is discrete.
It is to say that entropy concealing in surveying data can help us reveal the relation between error and distortion of engineering surveying data.
Acknowledgements This work was financially supported by the project of Hunan Province Department of education (09C089) and Open Fund of Key Laboratory of Road Structure and Material of Ministry of Transport ( Changsha University of Science & Technology) (kfj100205).

Therefore the aim of the experiment is to test the adsorption capacity of RE nanophase composite materials for metal substrate at high temperature.
This is the evaluation of friction of materials and the key performance index of repairing on the surface.
Nano surface engineering [M].
China Surface Engineering, 2004 (2) : 37-40 [3] Xu Bin-Shi, Liang Xiu-Bing, Dong Shi-Yun etal .
Progress of nano-surface engineering [J].