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Online since: October 2024
Authors: Pankaj Shivaji Wanjari, Manu Saxena, Butchi Bharadwaj, Vivek Srivastava, Shavi Agrawal, Sumit Kumar Gahlyan
Logé. 2018, Progress in Materials Science, Vol. 92, pp. 284-259
Misiolek, P.T Wang. 2005, Journal of Materials Science, Vol. 40, pp. 3861-3863
Montheillet. 2000, Materials Science and Engineering A, Vol. 283, pp. 274–288
Hutchinson, Bevis. 2012, Materials Science Forum, Vols. 702-703, pp. 3-10
Trond Furu, Hans Erik Vatne. 2000, Materials Science Forum, Vols. 331-337, pp. 843-848
Online since: February 2011
Authors: Xue Jiang Liu, Hai Sheng Liu, Jing Liu, Hui Gang Wang
Numerical Simulation of Plate Bender Bending Process Xuejiang Liu 1, a, Haisheng Liu 1,2,b, Jing Liu 3,c and Huigang Wang1d 1 Department of Mechanical Engineering, Tang Shan College, Tang Shan, Hebei, 063000,China 2 School of Mechanical Engineering, University of Science and Technology Beijing, Beijing, 100083,China 3Department of mechanical engineering, Tangshan Industrial vocational technical college, tangshan, Hebei,063000,China alxjiang2001@163.com, btsxy2008@yeah.net, ckuanmu@sohu.com,dchaochao1997@sohu.com Keywords: Plate Bender; Finite Element Analysis; Stress And Strain; Bending Velocity; Feeding Location.
The main technical parameters of the plate bender and material property of the plate are shown in table 1 and table 2 separately.
According to mechanics of materials, the pressure stress and tensile stress of the plate is equal and the stress of the plate surface is the biggest.
References [1] Shutian Fan and Su-fei Meng: Machinery Design & Manufacture, (in China, 2007, 6) p.82-84 [2] Yu-hong Ren,Research of process and equipment for three roller plate coiling of level adjust below [D],Tianjin University, Department of Mechanical Manufacturing and Automation, (2006) [3] Zhong-cai Wei: Zhongzhou coal(in China,2006,5) p.26-27 [4] Hong-wen Liu: mechanics of materials(in China, Higher Education Press,2000) [5]F.
Williamson.Jr.: A Historical Note on the Finite Element Method, International Journal for Numerical Methods in Engineering,Vol.15, No.6, 1980, p. 930-934
Online since: June 2011
Authors: Zhi Qin Huang, Xiao Hui Fan, Gai Ling Zheng
The Establishment of Mathematical Model of LED Based on Monte Carlo Method Huang Zhiqin1, a, Fan Xiaohui2,b and Zheng Gailing3,c 1School of science, University of Jinan, China, 250022 2 School of mathematics and quantitative economics, Dongbei university of finance and economics, China, 116025 3 Taiyuan no.48 high school, Taiyuan, China, 030012 ahzq-1230@163.com, bfxhsunny@163.com, css_huangzq@ujn.edu.cn Key words: Monte Carlo method;LED structure;Mathematics Model.
Fifty years ago, they've known the basic knowledge that semiconductor material can produce light ray, the first commercial diode is produces in 1960.
LED is the abbreviation of English light emitting diode, its basic structure is a electroluminescent semiconductor materials which is placed a lead on the shelf and then sealed with epoxy resin around, which is as a role of protecting the internal HPVV, therefore LED’s antiknock characteristic is good.
In the simulation, the column only needs to be described with the column's surface equation, and then to define various properties of epoxy resin materials in the column surface, and the LED side column's characteristic can be simulated.
Chinese Journal of Luminescence,2004,25(1): p. 90~93
Online since: July 2013
Authors: J. Yang, X.Q. Jiao, R. Zhang, H. Zhong, Y. Shi, B. Du
Du2, f 1State Key Laboratory of Electronic Thin Films and integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China 2China Electronics Technology Group Corporation - No.26 Institute, Chongqing 400060, China a yjie656@gmail.com, b xqjiao2008@163.com, c windzr@qq.com, d h.zhong@163.com, e shiyu_aaa@163.com, f duboyoulong@163.com Keywords: Aluminum nitride (AlN); Thin films; Water cooling; C-axis; Sputtering Abstract.
Introduction Highly c-axis oriented aluminum nitride is a promising material for surface acoustic wave(SAW) devices [1], bulk acoustic wave(BAW) devices [2] and electromechanical system (MEMS), due to its high acoustic velocity (6000m/s), high piezoelectric coefficient d31 (2.65pm/V) and d33 (5.53pm/V), chemical resistance, thermal stability, and compatibility with conventional Si manufacturing technologies [3].
Despite the lattice mismatch between AlN (002) and Mo (110) is very small (0.87%) [15], the lattice structure difference between two materials causes the distortion of AlN prisms on the Mo film.
Journal of Electronic Materials. 39 (2010) 1146-51
Online since: August 2013
Authors: Ling Mei Zhang
Figure 1: Unilateral cost and boundary cost coefficient and the relation curve of architectural layers Factors which affect project cost mainly includes the structure design of the choice of building material, building structure, etc.
Especially building materials, usually accounts for 70% of the direct costs.
If the changes in the design phase, only need to modify drawings, other fees has not yet occurred, the loss is limited; If the procurement phase changes, not only need to modify drawings, materials and equipment, must also purchase again; If changes in construction stage, in addition to the above fees, have construction project must be demolished, is bound to cause significant change.
Journal of Henan University (Natural Science).Vol.39 No.6(2009.11),P.655 [4] GB 50319-2000,Construction Cost Management.Wuhan University of Technology(China)
Online since: January 2014
Authors: Shun Rao
The new design idea including using the human as the core, following the ecological principles, making use of the environment, creating the environment, improving the service efficiency of the energy and materials and reducing the pollution of the construction on the environment will becomes the mainstream of the development.
Development of 3D Modeling Technology Computer graphics is the computer science which develops with the fastest speed in recent years.
The scale is huge, the drawing of the furniture is made by dividing different MAX files, which not only can save time, but also is easy to render the materials.
The controlling parameters of VRay rendered are not complicated, and are completely embedded into material editor and render settings.
References [1] Wang Zhijun, Yang Chunming, Study on the relationship between architectural design and interior design from the misunderstanding of home decoration , Journal of Hebei Vocational Technical Institute, 2006
Online since: May 2009
Authors: Guo Zhong Chai, Cong Da Lu, Shao Fei Jiang, X.H. Chen
For example customers always give their requirements, such as material or price of modules.
Name material price Value of material Value of price Length of codes 2 2 2 2 Meaning 01.plastic 02.steel 03.stainle ss steel …… 01.highest 02.higher 03.moderate 04.lower 05.lowest 01-0 02- 0.25 03-0.5 …… 09-1 01-0 02- 0.25 03- 0.75 …… 09-1 Fig.5 The interface of searching Conclusions The module encoding structure and regulation developed in this paper provide better support for construction of product information platform.
[6] L.Hou, Y.S.Xu, S.Li: Journal of Machine Design,Vol.19(2002),pp.8-10
[7] C.D.Lu, Z.P.Liao, S.F.Jiang,G.J.Liu:Materials Science Forum,Vol.523-533(2006),pp.11441147.
Online since: August 2007
Authors: Katsuhiko Sasakir, Takuji Kobayashi, Ken-Ichi Ohguchi, Yoshihiro Narita
Experimental and Theoretical Investigation of Viscoplastic Deformation of Solder Alloys for Electronic Packaging T.Kobayashi1, a, K.Sasaki1,b , K.Ohguchi2,c and Y.Narita 1,d 1 Division of Human Mechanical Systems and Design, Hokkaido University, N13,W8, Kita-ku, Sapporo, 060-8628 Japan 2 Department of Material Science and Engineering, Akita University, Tegatagakuen-cho 1-1, Akita, 010-8502 Japan a takuji@mech-me.eng.hokudai.ac.jp, bkatsu@eng.hokudai.ac.jp, cken@ipc.akita-u.ac.jp, d ynarita@eng.hokudai.ac.jp Keywords: Lead-free solder alloys, Electronic Packaging, Ratchetting, Creep, Plasticity, Constitutive modeling, Dislocations Abstract.
A, A1, A2, A3, A4, A5, A6, 0σ , m, n, 0 v ε& , and ξ are the material constants.
The material constants were determined by the method of random search.
The value of the material constants are shown in Table�3.
Material constants (a) lead-containing solder (b) lead-free solder A A1 A2 A3 A4 A5 A6 m n ξ 0v ε& 0σ E [GPa] 0 36 1 10354 83 36 0 4 56 1 1 98 35.7 � A A1 A2 A3 A4 A5 A6 m n ξ 0v ε& 0σ E [GPa] 0 406 1 10285 40 406 0 5.9 58 1 1 52 44.2
Online since: March 2006
Authors: Youn Ho Jung, Young Ho Lee, Hyung Kyu Kim
Introduction Fretting wear corresponds to a situation where a material removal is due to a repetitive sliding contact with small contact loads.
Especially, the wear behavior in a water lubricant condition is sensitively affected by the material/mechanical properties such as a changed hardness of the contacting surfaces, subsurface deformation, etc [1,2].
The fuel rod specimens are prepared with the dimensions of 40 mm in length, 9.5 mm in outer diameter, and 0.6 mm in wall thickness using Zirconium alloy; this commercial alloy has been used as nuclear fuel claddings and for the main components of fuel assembly materials.
Acknowledgements This study has been carried out under the Nuclear R&D Program by Ministry of Science and Technology in Korea.
Jung: KSTLE International Journal Vol.4 (2003), p.31 [4] Y.
Online since: September 2011
Authors: Yi Zhang, Jing Tang
Progresses of rabbit hair industry in 2010 Owing to the impact of global economic crisis and the monetary policy of Unites States, the prices of raw materials went up with the inflation.
Enterprise should develop new products and increase its added value to meet market demand with material processing in small group and more changeable.
Being material processed in small group and more changeable, carding rabbit hair products have been put into market and have wide foreground.
Yang: Published by Science Press, Beijing. (2006) [4] J.
Tang: Journal of Tianjin Polytechnic University. (2010)
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