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For the manufacture material used in this study, it is found that the proper value of σ lies between 10 and 20
The material used in the experiment was graphite.
Acknowledgment This study is supported by National Science Council of the Republic of China under the grant number NSC 97-2622-E-2221-E-033-028 and the project of the specific research fields in the Chung Yuan Christian University, Taiwan under grant CYCU-98-CR-ME.
Doherty-Bigara, "Development and implementation of visual feedback technology in automotive windscreen manufacture", Journal of Materials Processing Technology, 139 (2003), pp. 357-361
Kopac, "New approach in tool wear measuring technique using CCD vision system", International Journal of Machine Tools & Manufacture, 45 (2005), pp. 1023-1030

Even if the person is an established researcher in a given field, finding valuable and pertinent material can be a difficult and time-prohibitive process.
File information to promote the management informationization, material equipment construction and the team's construction and so on all has the important practical significance.
In short, records originating from one office or individual form a distinct body of material, which is to be kept separate and inviolate.
Journal of changchun university of science and technology, 2007, 21 (4) : 128-130
Journal of software, 2003 (1)

Materials and methods Reactor Set-up The granular bio-film reactor was constructed as showed in Fig.1.
Journal of Hazardous Materials. 190 (2011) 260-267 [6] Cameron Staib, Paul Lant.
Biochemical Engineering Journal. 34 (2007) 122-130 [7] State environmental protection administration of china.
Beijing: China Environmental Science Press, 2004

Materials and Equipments.
Acknowledgements This work is supported by the Natural Science Foundation of Guangdong Province (No. 8451170003000408) and the Dongguan Municipal Project of Science & Technology Plan (No. 200910814042).
Mishing, in: Diffusion Processes in Advanced Technological Materials, edtied by D.
Schäfer, volume 2 of Sustainability Science and Engineering, chapter, 6, Elsevier B.V.
Mestre: Journal of Membrane Science Vol. 280 (2006), p. 536

Introduction Magneto-rheological fluid (MRF) has developed rapidly as a new type of smart materials in the last decades, which has tremendous potential application in providing environmental safety, simple structure, good credibility and a rapid response interfaces between electronic controls and mechanical systems.
Achnowledgment This paper is based on the work sponsored by the National Natural Science Foundation of China (No. 50775043) and the Natural Science Foundation of Guangdong Province (No. 8151009001000005).
Ren: Mechanical Science & Technology, Vol. 21(2002), p. 11 [4] Q.
Gao: International Conference on Smart Materials and Nanotechnology in Engineering (2007)
Park: Journal of Intelligent Material Systems and Structures Vol.20 (2009), p.181 [6] Ali Sk.

In this study, two kinds of semiconductor materials WO3 and TiO2 nanotubes were combined to fabricate WO3/TiO2 nanotube array (WO3/TNAs) photoelectrodes.
It was easy for TiO2 to absorb different electrical materials which was beneficial for the degradation reaction [12].
Water Science and Technology,Vol.53(2006), p.99-107 [4] S.
Chinese Journal of Environmental Engineering, Vol.10(2011), p.2181-2185 [9] Y.
Acta Science Circumstiae, Vol.02(2009), p.1049-1055 [12] X.

While laboratory techniques are various, which are Widely used to analyze the materials and characteristics etc[9-11].
[7] Zhongmin Ding, Laiming Wu, Fangong Kong, Cultural Relics protection technology research of X-ray photography technology, Sciences of Conservation and Archaeology, 2006, 18(1), 38-46. [8] Junchang Yang, Rufen Han, applications technology of X light in cultural relics and archaeological research, Sciences of Conservation and Archaeology, 2001, 13(1), 55-61. [9] Almeida E.
Progr.Org.Coat, 2002, 44:233-314. [10] Bomin Su, Aimin Zhang, Zhide Hu etc, the application of Chromatographic method in ancient Chinese painting cementing material in analysis[J], Dunhuang Research, 2000(1):82-86. [11] Chiavari G, Fabbri D, Prati S.
Analysis of fatty materials used in painting layers by in situ pyrolusis and silylation[J].
Journal of Instrumental Analysis, 2004, 23(3): 1-4.

However, the present realization of these materials cannot be used to increase the structural properties thus limiting its future use in these applications.
An alternative to groundbreaking material improvements is the elimination of mass by employing materials systems that accomplish multiple tasks.
The prediction of the axial properties of unidirectional composite materials is fairly well established and verified experimentally.
Rethwisch, Materials science and engineering: an Introduction, John Wiley & Sons, 2009
Browning, On short-beam shear tests for composite materials, Exp.

Influence of Cement Particle Size Distribution on Strength of Hardened Cement Paste ZHU Baolin1, 2,a, HUANG Xin1,a, GUO Ye1,a 1School of Transportation Science and Engineering, Beihang University, Beijing 100083, China; 2China Academy of Transportation Sciences, Ministry of Communication, Beijing 100029, China azhubaolin_2000@163.com Key words: cement paste; particle size distribution; packing density; degree of hydration; strength Abstract: On the basis of the principle for the highest filling degree of cement hydrates, it is synthetically considered that a matching connection between hydration of cement, volume increment of solid phase and packing density of cement paste, a calculation method for a connection between cement continuous particle size distribution and strength of hardened cement paste is developed and tested by experiment.
Cement strength test methods and test results Test the new cement plant with production of Wuhan Huaxin, laser particle size analyzer measured the size distribution shown in Figure 6 Limited production of building materials on SP-8CR (polycarboxylate, retarding) super plasticizer.
Research on packing density of cement in paste with continuous grain size distribution [J].Journal of Building Materials,2006,9(4): 447-452.
Jensen, Effects of cement particle size distribution on performance properties of cementbased materials, Cem.
（in Chinese） [9] Yuan Run-Zhang editor, cementitious materials science [M].

Heat Treatment Effect on Pitting Corrosion of Super Duplex Stainless Steel UNS S32750 GTA Welds In-June Moon1, Bok-Su Jang1,2 and Jin-Hyun Koh1,a 1Department of Materials Engineering, Korea University of Technology & Education, Cheonan, Korea, 330-708 2Jeong-woo Industrial Machine Co.
References [1] Hua Tan, Yiming Jiang, Bo Deng, Tao Sun, JuliangXu, Jin Li : Effect of annealing temperature on the pitting corrosion resistance of super duplex stainless steel UNS S32750, MATERIALS CHARACTERIZATION 60 (2009) 1049–1054 [2] L.H.
GOOCH : "Corrosion Behavior of Welded Stainless Steel", Supplement to The Welding Journal, MAY 1996, 145s-154s [5] J.
Nilsson : "Super duplex stainless steels", Materials Science and Technology, August 1992 Vol.8, 685-700 [6] Chan-Jin Park and Hyuk-Sang Kwon: “Effects of Tungsten on the precipitation Kinetics of Secondary Phases and the Associated Susceptibility to Pitting Corrosion in Duplex Stainless Steels”, Corrosion Science and Technology, Vol.5, No.6(2006), pp.189~195 [7] Yong-Soo Park, Soon-Tae Kim, In-Sung Lee and Chi-Bok Song: “Effects of Rare Earth Metals Addition and Aging Treatment on the Corrosion Resistance and Mechanical Properties of Super Duplex Stainless Steels, Metals and Materials International, Vol.8, No.3(2002), pp.309~318 [8] Soon-HyeokJeon, Soon-Tae Kim, In-sung Lee, Ji-Soo, Kim, Kwang-Tae Kim and yong-Soo Park: “Effect of Aging Time on Resistance to Localized Corrosion of Hyper Duplex Stainless Steel, Corrosion Science and Technology, Vol.9, No.5(2010), pp.209~215 [9] Gi-Hyon Kwon, Tong-Sang Na, Wee-Do Yoo, Jong-Hoon Lee and yong-Ho Park: “Effects of the cooling Rate After