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Interfacial Crack Effect on Thermal-Mechanical Behavior of Solder Bump for Flip-Chip Package: A Numerical Analysis Yunpeng Mu 1,2, Wugui Jiang1,* and Hongping Zhao2, * 1 School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, China 2 Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P.
Material Sn4.0Ag0.5Cu Al Cu Density (Kg/m3) 7390 2710 8900 Specific heat (J/(Kg*K)) 219 902.1 385.
That’s the key difference between them.

The Research progress of Biosyufactants on the Degradation of Antibiotics during the Compost Process Yunlong Zhao1, 2, a, Su Chen2,b, Lina Sun2,c, Lanshu Jin1,d, Lei Chao3,e 1 Shenyang Agricultural University, Shenyang 110866, China 2 Key Laboratory of Regional Environment and Eco-Remediation, Shenyang University, Ministry of Education, Shenyang 110044, China 3 Liaoning Academy of Environmental Sciences, Shenyang 110031, China a email: 421239903@qq.com, bemail: mailchensu@aliyun.com, cemail: mailsydx@yahoo.com.cn, demail: ara168@163.com, eemail: mailchaolei@yahoo.com.cn Keywords: Antibiotics; Degradation; Composting; Biosurfactants Abstract.
With compost techniques become more sophisticated, domestic and foreign scholars [7] generally believe that the essence of compost microbial metabolism under suitable conditions, soluble organic substances in the organic waste through the cell wall and membrane of microorganisms microorganisms absorption, solids and colloidalde composition of organic matter is first attached to the micro-organisms in vitro, and then in the microorganisms secrete extracellular enzyme soluble substances, and then penetrate the interior of the cell; microorganisms through its own life activities --- redox and biosynthetic process, a portion is absorbed oxidation of organic matter into simpler inorganic substances, and the release of the growth of microorganisms, the activities require energy to another part of the organic compounds into the synthesis of new cellular material, so that microbial growth and reproduction, to produce more objects [8].
Currently, the rapid development of biosurfactants, widely used in the oil industry, food industry, paper industry, bio-medical, environmental engineering [10].
Wang: Chemical Industry and Engineering Technology Vol. 6 (2005), p. 23-26 [10]J.L.

Design and Construction of High-Formwork and Large Span Formwork Supports System Dahua Li 1, a, Anhui Wang2, b, Yanmei Chen3,c 1, 2 School of Mechanical and Electrical Engineering, Anhui University of Architecture, Hefei, 230601, China 3China Construction First Division Group Construction Development Co.
Selection of Material The tall template supporting system for the project using Ф48 × 3.0 fastener-style steel pipe as upright tube and main joist, template panel using 15mm and 18mm thick general multilayer slab.
The key positions and aspects of the inspection and supervision may not be implemented; the safety and quality assurance system of part of the construction project department is not perfect, accountability is not implemented and workers do not perform their duties conscientiously; the support system which on-site erection does not meet the requirements.
Acknowledgment It is a project supported by the Plan Project of Chinese Ministry of Housing and Urban-rural Development (Grant No.2009-K6-32) and the Quality Engineering Project of Anhui Ministry of Education (Grant No.20100774).

Zhang c College of Electrical and Information Engineering,Lanzhou Univ. of Tech., Lanzhou, 730050,China.
Firstly, we can get the key system parameters from the voltage-current transformer and speed sensor (speed signal can be directly received by QEP pin of event management module), and these parameters pass through the analog-digital interface to the DSP built-in A / D module, then the control quantity is given by programming controller through algorithm program.
And those traditional methods have series disadvantages which are wasting a lot of human and material resources, long developing cycle, debugging environment unstable, and so on.
References [1] Huang Manlei, Tang Jiaheng, Guo Zhenming: Journal of Harbin Engineering University Vol. 18(6) (1997), p. 20 [2] M.A.Rahman et al: IEEE Transactions on Energy Conversion No. 11 (1996), p. 324 [3] Sun Jianhe: Electrical Switches No. 6 (1999), p. 14 [4] He Wei, Chen Gang: Mobile Power and Vehicles No. 3 (2002), p. 17 [5] Zhou Wei, Bai Li-xin: Journal of inner Mongolia polytechnic university No. 3 (2002), p. 227 [6] Xu Ming: Controller design of diesel generator sets based on DSP, Master thesis, (Nan Chang University, NanChang 2005)

LI 1 (1 College of Electromechanical Engineering, Qingdao University of Science & Technology, Qingdao 266061, China ; 2 School of Polymer Science and Engineering, Qingdao University of Science & Technology Qingdao, 266042, China) a Jared_w@163.com Keywords: pressure function method, tyre, structure design, inflated shape, balance outline Abstract: The pressure function method being different from traditional (experienced) design method.
Its algorithm is similar to the structure model of calculating. 4.4 Solution of the differential equations The key of the calculation of the tire structure model and the inflated shape is how to solve the differential equations.
Material mechanics [M].Beijing: higher education press, 1990

Application of Phase-sensitivity Detector in Air-coupled Ultrasonic Testing Wei Dong1, a, Zhou Ziwei1, b and Zhou Zhenggan2, c 1School of electronic and information engineering, University of Science and Technology Liaoning, Liaoning, China 2Institute for Nondestructive Testing, Beihang University, Beijing, China aasweidong@yahoo.com.cn, bzhouzw@163.com, czzhenggan@buaa.edu.cn Keywords: Phase-sensitivity detector; Super-heterodyne Receiver; Air-coupled Ultrasonic; Ultrasonic imaging.
But there is poor power efficiency of transducer and long time pulse residue, due to the enormous difference consisted in the acoustic impedance between the transducer material and the air.
How to improve the SNR of air-coupled ultrasonic testing echo signal efficiently and reliably is the key problem in air-coupled ultrasonic research, which directly determines whether it can be used for practical testing.
Chinese Journal of Mechanical Engineering, Vol. 44(2008), p.10 [2] Y.

Toughened epoxy adhesive modified with core-shell nanoparticles containing epoxy groups on the surface Xugang Zhang1,2,a, Bin Zhang2,1,b, Mingming Sun2,1,c, Jianhui Li2,d, Lei Wang2,e, Xue Gang2,f 1College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, Heilongjiang, China 2Heilongjiang Institute of Petrochemistry, Harbin, Heilongjiang, China axugangzhang@sohu.com, bzhangbinaaa@sina.cn, csunmm2000@163.com, dljh.exe@163.com, eyongyuan.36@163.com,fqingnihuida@126.com Keywords: Core-shell nanoparticles, Toughened epoxy adhesive, Peel strength, Sheer strength, Mixing methods Abstract.
The mixing methods of CSNPs and the epoxy matrix, and CSNP dispersion degree in the epoxy matrix, will be the key factors to regulate the toughening performance.

THE EFFECT OF HEAT TREATMENT PARAMETERS ON MICROSTRUCTURE AND TOUGHNESS OF AUSTEMPERED DUCTILE IRON (ADI) A.Abedi1, a, S.P.H.Marashi2, b, K.Sohrabi3, c, M.Marvastian3 and S.M.H.Mirbagheri2 1Faculty of Mechanical Engineering, Shahid Rajaee Teacher Training University (SRTTU) Lavizan, Tehran, Iran. 2Mining and Metallurgical Department, Amirkabir University of Technology, Tehran, Iran. email: 3Student of Mining and Metallurgical Department, Amirkabir University of Technology, Tehran, Iran. email: a abedi.amir@gmail.com, b piroozmarashi@maharfan.com, c k.sohrabi@yahoo.com Key words: austempering; austempered ductile cast iron; impact energy; retained austenite Abstract.
Introduction Austempered ductile iron (ADI) is considered to be an important engineering material because of its attractive properties such as good strengths, good wear resistance, fatigue strength and high impact energy (toughness).

Research on anti-backward-tipping device of luffing jib tower crane Li Bin1,a, Cai Bing1,b, LiuHongDa1,c, WangFuMian2,d and ZhangJinSheng2,e 1Traffic and Mechanical Engineering College, Shenyang Jianzhu University, Shenyang Liaoning, China 2Liaoning Academy of Safety Science, Shenyang Liaoning, China abinli2010@sina.com, bice1789123@sina.com,cscore20@163.com, dwfm2126@sina.com, ezjsaky@126.com Keywords: luffing jib tower crane; anti-backward-tipping device; crane jib.
Luffing system generally consists of steel rope and flexile cable, realizing the luffing movement through the coiling and releasing of the steel rope, when unload suddenly, reversing ballistic and wind load acting on the boom, the accident of boom’s retroversion will happen easily, the reasonable design of anti-backward-tipping device is the key in designing luffing jib tower crane.
Acknowledgment This research project was sponsored by grant of Liaoning Province Education department support program (L2010455), Liaoning Province Science and Technology Hall Engineering Center capital program (2010402010) and Public scientific research program of AQSIQ (201010060).
Vol.29 (2003), p. 22-23 [4] Shan Z.H:mechanics of material, (Higher Education Publications, Beijing, 2004)

Heat Generation Characteristics and Heat Dissipation Experiment of CPU Chip Maode Li 1,a, Shuai Wei 1,b 1School of Mechanical and Energy Engineering, Tongji University, Shanghai, China alimaode@tongji.edu.cn, bWsws12341@hotmail.com Keywords: CPU; heat dissipation; fan-cooled radiator Abstract.
Effective thermal analysis, thermal design, efficient use of the thermal control technology to improve chip reliability has become key challenges needed to be solved in electronics manufacturing. 2.
Active heat dissipation can conduct the heat directly by means of the cooling plate made of thermal conductive material(e.g. aluminum , cupper), and then have the heat radiated out in the way of heat radiation and free convection.
[6] Hu Xuegong, The Application of Micro Slot Group Evaporator in Cooling of Electronic Chip [J], Chinese Journal of Chemical Engineering, 2005, 56(3).