Search results

Defect engineering for SIMOX processing R.
For O implantation a "good match" of combinations of ion energy (E) and ion fluence (Φ) was reported for which the materials parameters were at the best and for which the lowest fluence was found to form a continuous oxide layer [11-13].
However, defect engineering brings about narrow BOX oxide layers outside the good matching as well.
Experimental In this study a cavity layer was applied for defect engineering.
Nagatake, Microelectronic Engineering 66(2003) 400

Fabrication of scaffold for bone regeneration by taylor made stereolithography K.KUMAGAI1 a, T.ASAOKA2 b,K.FURUKAWA3 C,T.USHIDA4 d 1Course of intelligent Mechanical Engineering, Graduate School of Science and Engineering, Tokyo Denki University, Ishizaka Hatoyama Hiki Saitama 350-0394, Japan. 2Department of Intelligent Mechanical Engineering , School of Science and Engineering, Tokyo Denki University, Ishizaka Hatoyama Hiki Saitama 350-0394, Japan. 3 Univ.of Tokyo,7-3-1,Hongo,Bunkyo-ku,JAPAN,113-86564Division of Biomedical Materials and Systems, center for Disease Biology and Integrative Medicine, School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan a11rmk14@ms.dendai.ac.jp, basaoka@mail.dendai.ac.jp, cfurukawa@mech.t.u-tokyo.ac.jp, dushida@mech.t.u-tokyo.ac.jp Keyword: tissue engineering,stereolithography,rapid prototyping,TCP,scaffold,PCR Abstract Recently, regenerative medicine attracts very wide attention.
Tissue engineering seeks to resolve these problems through the generation of new tissues from autologous cells.
Stereolithography is characterized by high mold-forming accuracy and a low volume of materials use [1].
In view of these requirements, we used b-TCP (Ca3(PO4)2), DPCA60, and an polymer as the lithographic materials.
Fig. 1 Stereolithography apparatus　Fig.2Hardening range 3.2 Lithographic materials The lithographic materials used in this study were mixtures of b-TCP with either DPCA60 or an polymer, as shown in Tables 1 and 2.

Conclusions Basic mechanical characteristics of MHS materials under uniaxial compression, which can have important engineering applications, are obtained using experimental, numerical and analytical approaches.
Zhao: Submitted to Materials Science and Engineering A (2005) [6] W.S.
Gibson: Materials Science and Engineering A Vol. 347 (2003), p. 70
Gibson: Materials Science and Engineering A Vol. 352, (2003) p.150
Bréchet: Materials Science and Engineering A Vol. 379 (2004), p. 240

Analysis on Sealing Method and Sealing Materials of Gas Drainage Borehole YE Qing1,2, a, JIA Zhen-zhen1, b, PI Yan1, WANG Hai-zhen1 1 School of Energy & Safety Engineering, Hunan University of Science & Technology, Xiangtan HuNan 411201, China 2 Hunan Key Lab of Safety Mining and Technology of Coal Mines, Xiangtan HuNan 411201, China acumtyeqing@126.com, bjiazhenzhen1982@126.com Keywords: Gas drainage of coal seam; Borehole-sealing method; Borehole-sealing materials; Borehole-sealing technology.
The gas flow law and borehole sealing mechanism are briefly described, the borehole sealing technologies of different materials are analyzed and the requirements are obtained as follows: ①Sealing materials shall have permeability. ②Sealing materials shall have expansion. ③The strength and hardness of sealing material can not be too high. ④Sealing materials are compact; sealing materials shall have certain strength. ⑤Sealing materials can be obtained easily and their price shall be low. ⑥Sealing process is simple and is constructed easily.
At present, the polymer foam materials used in coal mine include commonly polyurethane, Ma -Lisan and aner sealing material.
COAL ENGINEER, N3, 1996:14-18
Coal engineer, 2003,N8:47-49

Development of Electrode Materials for Semiconductor Devices Masanori Murakami1,a, Yasuo Koide 2,b , Miki Moriyama 3,c, and Susumu Tsukimoto 1,d １Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan 2 Advanced Materials Laboratory, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan 3 TOYODA GOSEI CO., LTD.
However, ohmic contact materials which are key elements for GaAs devices have been, unfortunately, developed on a trial-and-error basis.
The primary purpose of the present article is to review extensively recent progress of ohmic contact materials for GaAs devices, which have been carried out mainly in our laboratories based on materials science.
(No.15206069) References [ 1 ] M.Murakami, Materials Science Report 5(1990) 273
Conf. on Solid State Device Materials, D-2-3(1988)283

Recent Developments on Life Cycle Assessment of Building Materials Ning Liu1,a, Yu Liu1,2,b*, Xianzheng Gong1,c, Liwei Hao3,d, Feng Gao1,2,e, Xiaoqing Li1,f, Yan Zheng1,g 1National Engineering Laboratory for Industrial Big-data Application Technology, Beijing 100124, China 2Beijing University of Technology, the Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing 100124, China 3Beijing Building Materials Academy of Sciences Research / State Key Laboratory of Solid Waste Reuse for Building Materials, Beijing 100041, China aliuning07200@163.com, b*liuyu@bjut.edu.cn, cgongxianzheng@bjut.edu.cn, dhaoliwei@bjut.cn, egaofeng@bjut.cn, flixiaoqing@bjut.cn, gzhengyan@bjut.cn Keywords: Life cycle assessment, Building materials Abstract.
Moreover, the typical LCA case studies of cement, glass, ceramics, wall materials, insulation materials and other building materials were reviewed.
China is a big country in production and consumption of building materials, its output and consumption of cement, ceramics, glass, wall materials, insulation materials and other major building materials have ranked first in the world for many years.
Wall Materials.
Other Building Materials.

Fujian Building Materials, 2010, 1:4-5
Guangdong Building Materials, 2009, 3:10-12
Sub grade Engineering, 2012, 3:24-27
Construction and Building Materials, 2012, 36:630-637
Engineering Mechanical, 2000：901-905

China 2 College of Mechanical & Material Engineering, China Three Gorges University, Yichang 443002, P.
As the sandwich structure materials extensively used in the engineering field, the existing sandwich structure materials can not meet the requirements of engineering design gradually.
Applied Composite Materials, 19(2012) 117-126
Biomedical Engineering, 28(5): p. 262-264, 1994
Master Science and Engineering., A110 (1989) 1-36

Yang1, d 1State Key Laboratory of Solidification Processing, School of Materials Science, Northwestern Polytechnical University, Xi’an 710072, PR China azhangpeipei916916@126.com, bzhanmei@nwpu.edu.cn Keywords: High-strength TA18 tube; Material parameters; Spring-back; Numerical simulation; Sensitivity analysis Abstract.
Spring-back is one of the key factors affecting the forming quality of the NC bending of high-strength TA18 tubes (TA18-HS tubes).
DONG et al. [7] carried out the sensitivity analysis of materials parameters on spring-back of 3A21 thin-walled rectangular tube, eliminated the non-sensitivity parameters, and simplified the analysis procedure of the effect of material parameters on spring-back.
According to the engineering technical manual or the practical experiences, the choice of the reference parameter set is different for the specific problem.
Table 2 Material parameters of numerical simulation Parameters Values Initial yield stress(Mpa) 717.300 757.150 797.000 836.860 876.700 Elastic modulus (Gpa) 94.868 100.139 105.409 110.679 115.950 Strength coefficient(Mpa) 1135.372 1198.448 1261.524 1324.600 1387.676 Strain hardening exponent 0.069 0.073 0.077 0.081 0.085 Results and Discussion Applying the numerical simulation method, the springback angle corresponding to different values of the materials parameters are obtained (Fig. 2).

So this new equivalent load identification algorithm based on least-squares in frequency domain is much more combing with the engineering practice.
Otherwiles, location of equivalent load landing shoud be changed or number of equivalent load landing points shoud be increased until response errors for vibration signals of key examination points meet the engineering precision requirement of 3db.
N Y Y N N Y Calculate auto-power spectrum of, ， Choose equivalent load landing method and get number of equivalent load points key examination points meet the engineering precision requirement ?
Equivalent load has already found，its auto-power spectrum is Using (3) to calculate equivalent load Using (4) to calculate response of key examination points Can equivalent load landing method realize in engineering?
We adopted Hypermesh to model, meshed, set materials, and imported them into VAone.