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The hysteresis curve of PTFE sliding rubber bearing is a stress- train relation of perfect elastic-plastic material.
Acknowledgment The authors would like to acknowledge National Natural Science Foundation of Chain (No 51078306); Special Fund of Higher Education Doctor Program (No 20106120110004); the Youth Foundation of XAUAT (No QN0743); the Innovatory Foundation of the grand science and technology of XAUAT (No ZX0901); and the Major Subject Construction Foundation of Shanxi province (No E01004) for their financial supports.
Engineering Structures, 2006,28: 1149~1161 [3] Dong-sheng WANG, Qi-min FENG, Guo-xin WANG, Engineering mechanics, 2004,21(2),157-165 (In chinese) [4] Trochalakis P, Eberhard M O, Stanton J F, Journal of Structural Engineering, 1997,123(4):469-478

Ultrasonic Fatigue Performance of welded joints in 16Mn steel Liangchen Wu1, a, Dongpo Wang1,b 1 School of Material Science and Engineering, Tianjin University, Tianjin 300072, China a ulc_fj@126.com, b wangdp@tju.edu.cn Keywords: Ultrasonic Fatigue, Welded Joint, Fatigue Performance, Super Long Life Abstract.
[3] Wang qing yuan, Journal of Sichuan University, 34(2002) 6-11
[4] Yan Gui ling, China Railway Science, 25(2004) 78-81.

Isolation and Identification of A Cellulolytic Bacterium from the Huguang Maar Lake Lihong Cui1,a , Jihua Li1,b*, Xiaoyi Wei1,c, Donghui Han1,d, Yuliang Zhang2,e 1 Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture, Agriculture Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524001, China 2 Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China aciana_312@yahoo.com.cn, bfoodpaper@126.com, cweixywei@163.com, dhzauhandonghui@163.com, eyuliang1017@126.com Keywords: Cellulose hydrolysis, Cellulase, Bacteria, Screen, 16s rDNA Abstract.
It can be hydrolyzed to glucose and other soluble sugars which can be further converted to ethanol and other biofuels by fermentation, thereby it is an attractive raw material for producing bioenergy.
Koo: World Journal of Microbiology and Biotechnology.

Introduction With the development of economy and the progress of science and technology, Chinese industry develops more and more rabidly.
The first layer, around separated by insulating material, is hardware layer, where a sensor node and a wireless routing node are placed.
Acknowledgements This work was supported by a grant from the National Natural Science Foundation of China (No. 51275149) References [1] Yunze MA.
[J]: IEEE Sensors Journal, 2011(5):1145–1151

Surface Passivation of Silicon Wafers by Iodine-Ethanol (I-E) for Minority Carrier Lifetime Measurements Jingwei Chen a, Lei Zhao b, Hongwei Diao, Baojun Yan, Su Zhou, Yehua Tang and Wenjing Wang c Key Laboratory of Solar Thermal Energy and Photovoltaic System of Chinese Academy of Sciences, Institute of Electrical Engineering, the Chinese Academy of Sciences, Beijing 100190, China achenjingwei@126.com, bzhaolei@mail.iee.ac.cn, cwangwj@mail.iee.ac.cn Keywords: The effective minority carrier lifetime；the bulk lifetime of minority carriers；μPCD; iodine-ethanol passivation Abstract.
Introduction The bulk lifetime of minority carriers (τb) in Si is one of the most important material parameters in the design and fabrication of Si-based solar cells.
Kimerling: Journal of the Electrochemical Society Vol.142 (1995), p.2833 [6] B.

Raw materials and preparation of samples Raw materials.
Materials engineering, 2008, (6): 76-80
Aerospace materials and technology, 2008, (5): 75-77
In: ADVANIS, SHONAIKE G, Editors, Advanced Polymeric Materials.
Journal of aeronautical materials, 2008, 28(4): 101-106

Mat Science and Appl.
At longer carrier decay times, multiple trapping events dominate that can be described by a stretched exponent approach, typical of disordered materials.
This implies a need for the materials characterization of thin semiconductor layers.
In case MOSFETs are available on an SOI substrate, several device-based techniques have been developed for materials' characterization [2].
A detailed analysis reveals that the asymptotic carrier decay is composed of multiple trapping events that can be described in a similar way as for disordered materials [1].

Preamble With the fast growth of the global economy, cement, as one of the chief building materials, maintains a steady growth trend in terms of the demand; the cement industry, affected by the change of the world economic pattern and restrained by the raw materials for production and the environment protection, is confronted with the upgrading of the industrial structure and the adjustment of the production bases, so it calls for the sustained increase of its scale of investment.
H5 Compensation for breach of contract: the improper provisions for the ceiling fines or penalties and the excessive undertaking of the compensation risks [5]. 2.3 Risk of Business Operation [6,7] I1 Company Registration: Different risks confronted and by whatever means to engage in engineering projects in the country of the engineering project; I2 Service Licensing and Visa Handling: the ratio of labor services export, procedures, visa, quantity and other problems; I3 Import and export of equipment and materials: the import and export of equipment and materials for production and construction and authentication system for production equipment; I4 Insurance business: Different insurance systems, taxes, premium rates, limitation of liability and indemnity clauses, etc; I 5.
Acknowledgements This work is supported by the Soft Science project (No. 2011B070300135) of Guangdong Science and Technology Department, and the Soft Science project (No. 2011-R3-34) of the Ministry of Housing and Urban-Rural Development.
Journal of Capital University of Economics and Business, 2009（5）:86-89 [5] Chunsheng Cai.
Modern Management Science, 2007（8）:110-111 [7] Shuhe Wu.

In recent decades, due to the progress in modern science and technology, especially the appearance of new progress and the associated instruments of gas geochemistry and isotope geochemistry, it has promoted the inorganic gas hypothesis to develop to the modern inorganic gas hypothesis science-based.
Granite Zone The granite zone is the product from crust-mantle material syntexis or crust material syntexis when plate tectonics evolves to a certain stage.
Journal of Railway Eengineering Society,2009, Vol.133,No.10:84-89.In Chinese [5] Mingji Liu, Zhizhong Diao, zhenggui Zhang.
Beijing,Science Press, 1995. 1-10. .In Chinese [13] Zhanqian Guo, Xingke Yang.
Oil & Gas Geology , 2000, Vol.21,No.1: 50-52.In Chinese [14]Guanming Ren, Zhixiang Zhao, dexing Nie,etc..Journal of Mountain Science,2002,Vol.20,No.1:122-125.In Chinese

Although PAS has been extensively applied in studying defects in semiconductors and synthetic materials, yielding quantitative data on their microscopic properties its potential in medical imaging could significantly enhance diagnostic methodologies.
Ps, in particular ortho-Ps (o-Ps), has the potential to infer properties of materials, such as voids, pores, oxygen concentration [14].
Advances in Positron Annihilation Spectroscopy for Medical Imaging PAS has been widely used for the inspection of mesoporous materials, metal alloys, semiconductors, and solar cells.
Vallery, Positron annihilation as a method to characterize porous materials, Ann.
Kraft, RBE for carbon track-segment irradiation in cell lines of differing repair capacity, International Journal of Radiation Biology, 75 (1999) 1357-1364