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Online since: June 2014
Authors: Xing Sheng Tong, Ting Zhang
Experimental Material and treatment specifications.
The material used in this study adopted the 304 austenitic stainless steel with the size of φ8mm×15mm.
Table.1 AISI 304 stainless steel chemical composition Material Cr C Ni Mn Si Fe AISI304 18.30 0.07 9.48 2.1 0.48 bal LTPC took place in the double glow heat treatment furnace, and the samples were placed in the cathode plate,with the sheathed thermocouple to temperature accurately, at the same time, the samples with a perforated thin-walled ring around to ensure the uniformity of temperature.
Acknowledgments The authors greatly acknowledge the Natural Science Foundation of China No.50975210 for financial support.
Journal of Materials Engineering and Performance. 21(2012)388-394 [3] Buhagiar J.
Online since: October 2013
Authors: Ben Ning Qu, Bang Cheng Yang, Ran Guo
Mechanical Calculation Model for L-Shape Traffic Signs Bar with Variable Cross-Section Benning Qu1,a, Bangcheng Yang1,b and Ran Guo1,c 1Kunming University of Science and Technology, Kunming China aqubennin@163.com, byangbc5@163.com, cprof.guo@hotmail.com       Keywords: L-shape traffic signs bar, variable cross-section, thin-wall cross-section of regular octagon, FORTRAN language.
(23) G— shearing modulus of elasticity of material, ,— Cantilever bar and column of the average moment of inertia.
References [1] Hongwen Liu,Advanced Material Mechanics,Higher Education Press, Bejing,1987
[2] S.Timoshenko, J.Gree,Mechanics of Materials, Van Nostrand Reinhold Company.1972
[3]Hua tang, Li zhao,Research on Mechanics Model of Constructing Traffic Sign,Journal of shihezi University,24(2000)746-748
Online since: June 2012
Authors: Yu Mei Zhu, Zhi Hong Li, Xing Fen Lv, Guang Tao Zhao
Lv1, d 1Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, School of Material Science and Engineering, Tianjin University, Tianjin 300072, China acarryzhao@126.com, bzhuyumei@tju.edu.cn, clizhihong@tju.edu.cn, dlvxingfen825@163.com Keywords: vitrified bond, diamond abrasive, sintering temperature, holding time, microstructure Abstract.
Introduction Diamond regarding as the hardest material occupies an irreplaceable position in grinding processing industry [1-2].
Consequently, the two factors becomes the focus to yield outstanding composite material.
Sergio: Journal of Materials Chemistry, vol . 12 (2002) ,p.2843 [6] K.H.
Online since: May 2007
Authors: Yu Chen, Ke Sun, Zhong Wen Lan, Zhong Yu
Density and Mechanical Strength of Ferrite for Inertial Gyroscope Zhong YU a, Zhongwen LAN b, Ke SUN c, Yu CHEN d State Key Lab of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, P.R China a yuzhong@uestc.edu.cn, bzwlan@uestc.edu.cn, cshmily811028@126.com, d phish_yuchen@sohu.com Keywords: inertial gyroscope, Mn-Zn ferrite, density, mechanical strength.
But the properties of magnetic levitation components and sensors are limited because of non-perfect property of magnetic material.
Simultaneously, in order to improve machining property of material, the ferrites must be assured of fine mechanical strength.
Since 1970s hot-pressing and hot isostatic pressing have been applied to prepare high density Mn-Zn ferrite material[1,2,3], but some problems, such as lack of equipments for fabrication, high cost and difficulty of fabrication technology, have not been answered.
Vol. 21(2001), p. 1931 [8] Yu zhong, Lan Zhongwen and Wang Jingmei: Chinese Journal of Materials Research.
Online since: June 2010
Authors: Feng Wu, Shi Chen, Jing Wang, Dao Bin Mu
Effect of Content of Mg on the Electrochemical Performance of La1-xMgxNi2.8Co0.7 (x=0.1, 0.3, 0.5) Hydrogen Storage Alloy Wang Jing 1,2,a* , MU Dao-bin1,2, b , Wu Feng 1,2, c* , Chen Shi1,2,d 1 Beijing Key Laboratory of Environmental Science and Engineering, School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, China; 2 National Development Center of Hi-Tech Green Materials, Beijing 100081, China awangjingbit98@bit.edu.cn,b mudb@bit.edu.cn, cwufeng863@bit.edu.cn, d csbit@bit.edu.cn Key words: Mg; electrochemical; hydrogen storage alloy; Abstract: La1-xMgxNi2.8Co0.7 (x=0.1, 0.3, 0.5) hydrogen storage alloy was synthesized by solid diffusion method.
The negative material of commercial Ni/MH secondary battery is mainly AB5-type hydrogen storage alloy.
Journal of Chinese Rare Earth Society, Vol.5(2006), p.592 [10] Dunlap B D , Viccaro P J , Shenoy G K.
Materials Chemistry and Physics, Vol. 83(2004), p.361
Online since: November 2014
Authors: Yong Jian Li
The Vice Premier Zhu Rongji ever directed: “Science on management is the importance of the country" in 1996 [1].
Other departments of the event should use the manpower, material and financial resources rationally according to the requirement of competition department.
Journal of Shenyang Sport University, NO 1, pp. 1-8, 2009
Three key questions to hi-tech Olympics impel our country science and technology industrial production.
Studies in Science of Science, 2007
Online since: December 2015
Authors: Kanchaya Honglertkongsakul, Jiraporn Pongsopa, Pattira Homhuan
Structural and mechanical properties of Ti-W-N thin films by dual unbalanced magnetron sputtering Pattira Homhuan 1, a *, Jiraporn Pongsopa 2,b and Kanchaya Honglertkongsakul3,c 1Faculty of science and technology, Phranakhon Si Ayutthaya Rajabhat University, Thailand 2Faculty of science and technology, Suandusit Rajabhat University, Thailand 3Faculty of Science, Burapha University, Thailand aHpattira@gedu.aru.ac.th, bjira0224@gmail.com, ckanchaya@buu.ac.th Keywords: Ti-W-N, thin film, magnetron sputtering Abstract.
The hardness and reduced modulus were measured using a Micro Material Nano Test in the constant depth mode with a Berkovich pyramid indenter tip.
Honglertkongsakul, Effect of nitrogen on the structural and electrical properties of Ti-W-N thin films, Burapa Science Journal Special volume (2014) 318-327
Oring, Material Science of Thin Films, second ed., Academic Press, San Diego, 2002
Online since: August 2013
Authors: Gen Xiang Shen, Xiao Dan Wang, Ying Zhu, Xiao Yong Qian
Changes of Water Quality and Bacterial Number in Overlying Water during the Wheat-straw returning to field Xiaodan Wang1, a, Genxiang Shen1,b , Ying Zhu1,c and Xiaoyong Qian1,d 1Shanghai Academy of Environmental Sciences, 508 Qingzhou-road, Shanghai 200233, China awangxd@saes.sh.cn, bshengx@saes.sh.cn, czhuy@saes.sh.cn, dqianxy@saes.sh.cn Keywords: Wheat-straw Returning, Water Quality, Bacterial Number Abstract.
Materials and method The amount of wheat straw returning generally is 250 kg/acre.
Acknowledgements This work was financially supported by the Shanghai Environment Protection Bureau Youth Science Fund Project (ZX212307).
References [1] Zhao J and Wang S: Modernizing Agriculture, 1: 30-31. (2007) [2] Hao Y, Yang X and Zhang J, et al.: Chinese Agricultural Science Bulletin, 2l(7):58-60. (2005) [3] Zhang H, Hu D and Chen J, et al.: Environmental Science and Technology, 45: 5477-5482. (2011) [4] Niu X,Liu M and Zhang H, et al.: Soil and Fertilizer Sciences, 6:49-53. (2011) [5] Wang A and Gao W: Chinese Journal of Eco-Agriculture, 11(1):142-144. (2003) [6] Shan Y, Cai Z and Han Y, et al.: ACTA Pedologica Sinica, 43(6):941-948. (2006)
Online since: May 2012
Authors: Bo Xia
The natural environment, building and human as a control system exchange material, energy and information with external environment.
In addition, the building and human as the sub-control system within the "environment-building-human" control system exchange material, energy and information with it, the natural environment as the environment variables for the sub-control system.
Fig. 6 The trombe wall Fig.7 The Rolf Disch’s residence Conclusion Systematology and cybernetics are not specific scientific methods, but the collective scientific methodology including natural science and social science, praised as “the whole science method”.
Acknowledgements This work was financially supported by the Special Fund for Basic Scientific Research of Central Colleges, Chang’an University (CHD2012JC081) and the Natural Science Foundation of China (51178050).
Lerner: Fundamentals of cybernetics, Science Press, Beijing (1980), p.85 [2] Baruch Givoni: Climate Consideration in Building and Urban Design, A Division of International Thomson Publishing Inc., NY (1998), p. 440 [3] Song Dexuan: Cybernetics on Building Environment, Southeast University Publications Limited, Nanjing (2003), p. 165 [4] Terunobu: submitted to World Architecture (2001) [5] Weiping Han, Congjie Wang : submitted to Journal of Shandong Jianzhu University (2005)
Online since: December 2011
Authors: Bo Hyeok Seo, Sun Hyun Kim, Jung Eun Lim, Soon Yong Chun
Study on EEG Feature Extraction under LED Color Exposure to Enhance the Concentration Jung-Eun Lim1, a, Bo-Hyeok Seo2, b, Sun Hyun Kim3, c, Soon-Yong Chun4, d 1School of Electrical Engineering and computer Science, The Graduate School, Kyungpook National University, Korea 2 School of Electrical Engineering and computer Science, Kyungpook National University, Korea 3CHA Medical University, Korea 4Dong Yang University, Korea aeuny1122@knu.ac.kr, bbhsuh@knu.ac.kr, ckshcat1210@hanmail.net,, dcontrol@dyu.ac.kr Keywords: LED, Color Brain Wave (CBW), Concentration, EEG, Intensive EEG Index Abstract.
Introduction As it becomes known that the bodily organ involved in human’s thought, including object cognition and thinking, is the brain and that this brain constitutes a nerve system entangled in a complex form [1], a number of brain science researches on human’s cognition and thought are actively proceeding.
The color table used in the experiment was 90cm in width, 180 cm in length, and 75cm in height, and its top plate was made of the translucent acrylic materials designed to spread the light.
Biological Science, 12(2), pp.65-92, 1977 [10] Jame, W., The principle of psychology, Vol. 1.
Lawson., Therole of the prefrontal lobes in scientific reasoning, The Korea Association for Science Education, 17(4), 525-540, 1997