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The performance of energy systems is reduced with time due to the degradation of materials.
Photovoltaic systems undergo alterations of their electrical parts and of their stacked materials [3].
Iyuke, Mathematical Modelling and Simulation of Supercapacitors, Nanomaterials in Advanced Batteries and Supercapacitors, Nanostructure Science and Technology, pp. 515-562
Hwang, (2010), Oxidized low density polyethylene: A potential cost-effective, stable, and recyclable polymeric encapsulant for photovoltaic modules, Solar Energy Materials & Solar Cells, 94, pp. 955–959
Master of Science Thesis, Chalmers University of Technology, Göteborg, Sweden, 2009

Reflector is a key function unit of THz radar systems, which often is made of metal materials.
It can directly manufacture large-scale optical mirror and some other complex curved surfaces (depth aspheric, off-axis aspheric, etc.) from a variety of materials (such as nonferrous metals, infrared materials and KDP, etc.), being a big challenge for traditional non-deterministic processing technology and equipments.
For different surfaces and materials, the optimal parameters are different.
Liu: China Basic Science (2006)
Nandi: Journal of Material Processing Technology (2006)

Experimental Materials and instrument.
It did not much suit for improving rigidity of materials.
Durbach: Materials Chemistry and Physics Vol. 111 (2008), p. 218-224 [4] L.L.
Hu: Journal of Applied Polymer Science Vol. 103 (2007), p. 3370-3376 [7] W.
Materials Characterization Vol. 60 (2009), p. 1127-1132 [9] R.M.

In particular, five tool pin profiles, five tool materials and three tool shoulder diameters were used to fabricate the joints.
Balasubramanian, Selection of FSW tool pin profile, shoulder diameter and material for joining AZ31B magnesium alloy - An experimental approach, Materials and Design 30 (2009) 2647-2656
Fratini, A continuum based FEM model for friction stir welding - model development, Materials Science and Engineering: A 419/1-2 (2006) 381-388
Vilac, Material flow in heterogeneous friction stir welding of thin aluminium sheets: Effect of shoulder geometry, Materials Science Engineering A 498 (2008) 384-391
Bhadeshia, Recent advances in friction-stir welding – Process, weldment structure and properties, Progress in Materials Science 53 (2008) 980-1023.

The evaluation of video surveillance system can provide real and effective data material to the users and the decision makers for better design and improvement in the future.
Journal of Chinese People’s Public Security University.2006 (4) 94-97
Chinese Journal of Management Science [J].
Applied Mechanics and Materials Vols.651-653:2301-2305(2014).

Treatment Dyeing Organic Wastewater by Titanium Dioxide Prepared with Ion Liquids For Environmental Protection Jie Yang1,a, Yilu Liu2*,b , Qihua Wu2,c 1 Jiangxi University of Traditional Chinese Medicine, Nanchang 330006, China 2 College of Science, Foshan University, Foshan 528000, China a yangmao2001@126.com, b lyl1300@sina.com,c sky402690789@qq.com Corresponding author: YiLu Liu, lyl1300@sina.com Keywords: Titanium Dioxide; Nickel foam; electrolyze; ion liquid Abstract.
Ion liquid has become a new and indispensable kind of functional material and solvent whose electrochemical behaviors of substance can be studied, and it has also become a kind of binder and modifier which can support the electrolyte and can prepare and modify the electrode and Electrochemical Biosensor[2].
Experiment 1. materials 70PPI nickel foam, stainless steel coupon, dyeing wastewater from Foshan wastewater treatment center 2. methods Colored wastewater samples were collected from Foshan textile dyeing and printing industry located on Guangdong Province,China.
Journal of chemical industry and engineering, 2003, 24 ( 4): 39-41 [2] Liu Yan. ion liquid in electrochemical biosensor applications [J].
Journal of Harbin Institute of Technology, 2004, 36 ( 4) :450-455

It is obvious that from the strain value corresponding to 65% up to 100% of a yield strain there is a significant difference between recalculated value of a stress obtained by the individual material models that are usually used.
Journal of Mechanical Engineering. 43 (1992) 472-478 [4] V.
Margetin, A Critical Review on Multiaxial Fatigue Life Estimation of Metallic Materials.
Academy of Sciences of the Czech Republic (2011) 35-38
American International Journal of Contemporary Research. 4 (2014) 50-55

Introduction Gray cast iron is a kind of traditional metal materials [1].
Thus, compared with other iron and steel materials, gray iron has a lower strength.
Materials Science and Engineering, Vol. 18(2000), p. 137-139
Materials Science and Engineering, Vol. 13(2005), p. 334-338
Journal of Japan institute of light metals, Vol. 44(1994), p. 28-34

Use of magnesium alloys as biodegradable implants may offer many advantages over conventional implant materials (namely, stainless steels, titanium alloys and Co-Cr alloys), such as: (1) possibility of avoiding second surgery owing to their biodegradability, (2) avoiding stress shielding problem, and (3) being cheaper as compared to traditional implant materials.
Journal of Materials Science Letters: Vol. 11 (1992), p.1039
Metallurgical and Materials Transactions A: Vol. 6 (1975), p.1155
Materials Science and Engineering: A: Vol. 480 (2008), p.529
Materials Science and Engineering: A: Vol. 488 (2008), p.339

Multiple source-detector reflected wave method in the intercity high-speed rail tunnel application Xianghong Liu1, a, Pingsong zhang 2,b Linhua Sun 3,c Song Chen 4,d 1School of Earth Sciences and Engineering, Suzhou University, Suzhou 234000, China 2Department of Resources and Environmental Engineering，Anhui University of Science and Technology，Huainan，Anhui 232001，China 3,4School of Earth Sciences and Engineering, Suzhou University, Suzhou 234000, China aliuxianghong10@163.com,bpszhang71@163.com,csunlinh@hotmail.com, dchensong830321@163.com Keywords: Multiple source-detector reflected wave method; Advanced detection; geological disaster; data acquisition; migration imaging.
A studyof tunnel advanced detection technology and its application[J].Chinese Journal of Engineering Geophysics，2004,1(4):293–298.
Chinese Journal of Rock Mechanics andEngineering,2003，22(8):1 399–1 402(in Chinese) [8] DAI Qianwei,HE Gang,FENG Deshan.
International Journal of Rock Mechanics and Mining Sciences,2001,38(6):833–841
Chinese Journal of Rock Mechanics and Engineering[J].2007,26(1):2847-2851.