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Different surfaces with different materials have different reflective properties; a good lighting condition should consider not only the lighting level of the surface but also a reasonable luminance level of corresponding observation point.
We simplify the working surface, based on the material, into mirror reflection and diffuse reflection, and in this way we can accurately get the luminous flux distribution emitted by the light source in the anterior-posterior direction, it will be helpful to meet the needs to reach a comfortable , safe, energy saving lighting condition .
Meanwhile, diffuse reflection is represented by reflection coefficient; for indoor working surface, varies from 0.1 to 0.9 depending on materials, which should be calculated specifically.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China(51278309); Foundation of Shenzhen Science and Technology Innovation Committee（CXC201006040018A）.
[2]X.W.Chu.China Illuminating Engineering Journal, 2011(5): 42-46,57

Kim 2,d 1 School of Materials Science and Engineering, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751, Korea 2 Advanced Materials R&D Center, Korea Institute of Industrial Technology, 994-32 Dongchundong, Yeonsu-gu, Incheon 406-130, Korea 1,ajtk0134@hanmail.net, 1,c mskim@inha.ac.kr Keywords: Al alloy, melt spinning, spray forming, microstructure, mechanical property Abstract.
In this study, we therefore have tried to produce a bulk Al-Fe-TM (TM: Mo, V, Zr) material by means of melt spinning and subsequent hot extrusion.
Sano: 87' International Syposium&Exhibition on Science and Technology of Sintering held at Tokyo, on Nov. 4~6, (1987) [3] Won-Yong Kim, Jae-Sung Park, Mok-Soon Kim and Tae-Yeub Ra: Journal of Rare Earths, Vol. 22(2004), P. 65-68 [4] J.S.

Study on the Thermal Stability of MUF Co-polymerization resin Yunwu ZHENG 1, a, Libin ZHU 1,b, Jiyou GU 1,c, Yanhua ZHANG 1,d 1College of Material Science and Engineering of Northeast Forestry University, Harbin, China azyw85114@163.com, bzhulb600@vip.sina.com, cdldgujy@yahoo.cn, dzyhnefu@163.com Keywords: MUF resin; Thermal Stability; Co-polymerization; TGA.
Introduction Urea-formaldehyde (UF) resin is a polymeric condensation product of the chemical reaction of formaldehyde with urea, possessing some advantages such as the rich source of raw materials, good bonding performance in wood panels, water solubility, and a lower price.
Different resin materials with different curing system in the whole temperature range are to comply with a decomposition reaction.
Acknowledgements The authors gratefully acknowledge the financial assistance of Environmental Protection Industry Special Funding Project (Grant No.200809120); Harbin Natural Science Committee Foundation (Grant No. 2008AA4BG006).
And the Northeast Forestry University Young Scientific Research Fund (Grant No. 09013) References [1] Libin Zhu, Jiyou Gu, Xiangli Weng: Journal of Northeast Forestry University Vol. 32(2004), p. 32-34 [2] Jiyou Gu, Libin Zhu, ONO Hirokuni: Chemistry & Industry of Forest Products Vol. 25(2005), p. 11-16 [3] A Pizzi, L Lipschtiz, J Valenzuela: Holzforschung Vol. 48(1994), p. 254-261 [4] Dongbin Fan, Janzhang Li, ZhenLei Lu, Wenrui Zhou, An Mao: China Adhesives Vol. 15(2006), p. 1-5 [5] K.

Relationship between the Conductivity of Supernatant of 3Y-TZP Powder and Sintering Properties of Its Ceramics Xiaobo Wu1,a, Dazhi Sun1,b, Danyu Jiang2, Haifang Xu2, Dexin Huang2 and Bing Xu2 1 Shanghai Normal University, Shanghai 200234, China 2 Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China a wxb0515@126.com, b sundazhi@shnu.edu.cn Keywords: Conductivity; Supernatant; Sintering properties; 3Y-TZP Abstract.
Introduction Owing to its high strength and toughness, 3mol% yttria-doped tetragonal zirconia polycrystals (3Y-TZP) is one of the most interesting ceramic materials for structural applications [1,2].
Experimental Procedure 3Y-TZP, used as the raw material, was prepared by gel-solid state synthesis technique [5, 6].
Acknowledgements The authors would like to thank the National Science Foundation of China (60807036) and the Leading Foundation of Shanghai (08JC1417200) for supporting the research.
Sun: Journal of Inorganic Materials.

Analysis on Steady Temperature of Honeycomb-core Panel Based on Coupled Aerothermal Heating and Honeycomb Conduction Liang Wei a, Fu Yu, Liu Zhenqi, Yang Lulu, Mai Hanchao School of Aeronautics Science and Engineering, Beihang University, Beijing 100191, China a email: liangwei@buaa.edu.cn Keywords: honeycomb-core panel; MTPS; grey body; temperature field Abstract.
The structure and material parameters are as follows: r is the radius, δ is the honeycomb wall thickness, A is the area where the heat transfers along the wall thickness (A=2πrδ), S is the area where the heat radiates in the cavity (S=πr2), k is the material thermal conductivity, ε is the g material ray, h1 is the front plate thickness, h is the honey core thickness and h2 is the rear plate thickness.
The geometric and material parameters of the structure are in agreement with Reference [6].The radius of the honeycomb, selected as circumradius, is 4.7625mm, the honeycomb core thickness is 0.0381mm, the core height is 12.7mm, the front plate thickness is 1.524mm, the rear plate 0.0762mm, the gray of the material is 0.14 and the thermal conductivity is 24.7W/(K·m).
Acknowledgments The research was supported in part by the National Natural Science Foundation of China through the grant 10972021.
Research of the Higher-order Finite Element Arithmetic for Radiation Exchange.Chinese Journal of Aeronautics.9(3):197-202,2006

With this method, people need take structure and component quantity size directly, measure material strength, make structural analysis, determine the actual performance of the structure, and make a comparison with the expected performance of the design to evaluate the reliability of the structure.
However, the static detection method has big workload, and it isn’t easy to test because partial structure is covered by decoration materials and it is likely to cause new damage.
Using this method, it is easy to measure structural dynamic response in engineering structure, and high detection efficiency can be achieved and the test isn’t influenced by decoration materials cover, and this method has broad application prospects.
References [1] Guoqiang Li: the theory and application of the Engineering structural dynamic detection, Science Press, Beijing (2002).
(in Chinese) [2] Maolong Wang, in: Quality Inspection with Dynamic Method for Existing Multi-Floor Brick Houses, volume 31 of Journal of Southeast University(2001).

Experimental Section Materials. n-Butanol was supplied by Ke Long (mass fraction purity ≥0.995). 1,8-Cineole (mass fraction purity 63.661%) was supplied by Songming county of Yunnan province in China.
An appropriate amount of n-butanol and eucalyptus oil were stirred well to a certain percentage as a raw material.
Then the condensate system and vacuum pump were started after pouring the raw material into distillation kettle.
A certain temperature was set up and electrical stove was switched on to heat the material untill the whole system reached steady state.
Acknowledgements This work was financially supported by Natural Science Foundation of China (20966004).

Introduction Conventional monolithic materials have precincts in achieving good combination of strength, stiffness, toughness and density.
To trounce these shortcomings and to meet the ever increasing demand of modern day technology, composites are most promising materials of recent interest.
Materials and Methodology 2.1 Composite Materials Fabrication Aluminum alloy A6063 was used as matrix material and SiC particles were used for the reinforcement materials.
Materials and Design, 2003, 24, pp95–103
Material Science and Engineering, 2001, A315, 217-226

References [1] Chen Xiaojie,Li Lei,Shi XiaoWei,Xie Yongjun.the scale relationship of perfect conductor in half-space, Journal of radio science,2004,21(6),939～943
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[4] Quan Shaohui,He Guoyu,Xu Yongbin,Jian Xianzuo.A high-performance single-reflector compact field, the Journal of BUAA,2003,29(9),767～769
Journal of Nanjing Aeronautics and Astronautics University ,1994,26(6),850～854

The object-oriented programming technique has been shown to significantly improve the extendibility and reusability of software[9] in computer science.
Zhang: Journal of Engineering Design Vol. 14 (2003),. p. 295 [4] H.
Wang: Strojniski Vestnik-Journal of Mechanical Engineering Vol. 55 (2009), p. 645 [6] R.P.
Finistauri: Journal of Mechanical Design Vol. 132 (2010) [7] H.
Hong: Journal of Engineering Design Vol. 21 (2010), p. 75 [8] K.