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Online since: October 2008
Authors: Yu Hao Li, Jing Chun Feng, Yu Han Wang, Y. Li
Examples
Fig. 5 and Fig. 6 show the CNC milling machine with a triangular-profile cutter used to cut a fractal
tree out of an acrylic stock material.
Acknowledgement This research was supported by the National Natural Science Foundation of China (No.50575138).
Yu: International Journal of Advanced Manufacturing Technology, Vol. 19 (2002), pp. 32
Acknowledgement This research was supported by the National Natural Science Foundation of China (No.50575138).
Yu: International Journal of Advanced Manufacturing Technology, Vol. 19 (2002), pp. 32
Online since: November 2011
Authors: Bi Zhen Bao, Hu Wen Cao, Ping Yang
Design of Bending Fatigue Machine for Flexible Electronics
Hu-wen Caoa, Ping Yangb and Bi-zhen Baoc
Department of Mechatronics Engineering, University of Electronic Science and Technology of China, Chengdu, China
acaohuwen@163.com, bping@uestc.edu.cn, cbaobizhen2006@126.com
Key words: Flexible Electronics; Bending Fatigue; SCM; stepper motor.
At present, the research of material, Structure and mechanical property of flexible electronics mainly concentrates on limit analysis, just like the damage analysis of flexible electronics in the limit temperature and humidity conditions, limit load analysis of tension or torsion etc.
“The present situation and prospects for the fatigue/fracture reliability study, ” Journal of mechanical strength, 1995,Vol.17(3),61~80.
At present, the research of material, Structure and mechanical property of flexible electronics mainly concentrates on limit analysis, just like the damage analysis of flexible electronics in the limit temperature and humidity conditions, limit load analysis of tension or torsion etc.
“The present situation and prospects for the fatigue/fracture reliability study, ” Journal of mechanical strength, 1995,Vol.17(3),61~80.
Online since: June 2012
Authors: Yi Xian Shen, Shi Xin Ma, Xin Wu Chen
It behaves some regular changes in light intensive, and we always found them in all kinds of application fields including fingerprints, iris, feathers, clothes, leaves, material, zebra, worm, etc.
Acknowledgements This paper is supported by the High Level Science Research Starting Fund of Xinyang Normal University, and Project of The Education Department of Henan Province (2010B120009).
Journal of Image and Graphics.
Acknowledgements This paper is supported by the High Level Science Research Starting Fund of Xinyang Normal University, and Project of The Education Department of Henan Province (2010B120009).
Journal of Image and Graphics.
Online since: July 2011
Authors: Fu He Wang, Xu Wang, Chun Ying Zhao
Accordingly, the improvement of the poor oxidation resistance of γ-TiAl by Nb doping may be caused by suppressing the diffusion of oxygen atom in γ-TiAl.
1 Introduction
γ-TiAl is a promising intermetallic as a high temperature candidate material.
Acknowledgement This work was supported by the National Natural Science Foundation of China under grant No. 50871071 References [1] Y.W.Kim and J.Miner: Met.
A Vol.27A (1996),p.3993 [15] C.Y.Zhao, X.Wang, F.H.Wang, J.X.Shang, and Y.S.Zhou: submitted to Journal of Physics: Condensed Matter (2011) [16] G.Kresse and J.Furthmuller: Phys.
Acknowledgement This work was supported by the National Natural Science Foundation of China under grant No. 50871071 References [1] Y.W.Kim and J.Miner: Met.
A Vol.27A (1996),p.3993 [15] C.Y.Zhao, X.Wang, F.H.Wang, J.X.Shang, and Y.S.Zhou: submitted to Journal of Physics: Condensed Matter (2011) [16] G.Kresse and J.Furthmuller: Phys.
Online since: November 2010
Authors: Chao Ching Ho, Tzu Hsin Kuo, Tsung Ting Tsai
Introduction
During the operation of a machine tool, the material characteristics of the processed workpiece, the
addition of the cutting fluid, and other practical processing situations may directly affect the
processing quality.
Acknowledgement The work was supported by the National Science Council, Taiwan, R.O.C.
Aini: International Journal of Machine Tools and Manufacture, Vol. 42 (2002), p. 1223
Acknowledgement The work was supported by the National Science Council, Taiwan, R.O.C.
Aini: International Journal of Machine Tools and Manufacture, Vol. 42 (2002), p. 1223
Online since: September 2003
Authors: Taro Nishiguchi, Makato Sasaki, Shigehiro Nishino, Satoru Ohshima, H. Tanaka
Citation &
Copyright (to be inserted by the publisher )
Uniformization of Radial Temperature Gradient
in Sublimation Growth of SiC
H.Tanaka, T.Nishiguchi, M.Sasaki, S.Ohshima and S.Nishino
Department of Electronics and Information Science, Kyoto Institute of Technology
Matsugasaki, Sakyo, Kyoto 606-8585, Japan
Keywords: Sublimation; Temperature gradient; Tantalum; Diameter expansion
Abstract.
Introduction Silicon carbide (SiC) has been expected as a material for high power, high temperature, high frequency and low-loss devices.
Journal Title and Volume Number (to be inserted by the publisher) 3 In the case of a convex bulk crystal, a different of impurity density can be generated in a wafer, since a convex bulk crystal may have large difference in the growth rate between the central region and the edge region.
Introduction Silicon carbide (SiC) has been expected as a material for high power, high temperature, high frequency and low-loss devices.
Journal Title and Volume Number (to be inserted by the publisher) 3 In the case of a convex bulk crystal, a different of impurity density can be generated in a wafer, since a convex bulk crystal may have large difference in the growth rate between the central region and the edge region.
Online since: September 2003
Authors: Hiroyuki Matsunami, Adolf Schöner, Tsunenobu Kimoto, Keiko Fujihira
Matsunami2
1
ACREO AB, Electrum 236, Isafjordsgatan 22, SE - 164 40 Kista - Stockholm, Sweden
2
Department of Electronic Science and Engineering, Kyoto University, Yoshidahonmanchi,
Sakyo, Kyoto 606-8501, Japan
Keywords: Deep impurities, HT-DLTS, epitaxial layers, Z1-center, hotwall CVD-reactor, chimney
CVD-reactor
Abstract.
Temperature (K) 200 300 400 500 600 700 800 Fourier coefficients (pF) 0.00 0.05 0.10 0.15 0.20 0.25 n-type 4H-SiC y = a1,tot+ b1,tot+ a2,tot+ b2,tot Z1-center DET = 630 meV sT = 2.5·10 -16 cm 2 NT = 5·10 13 cm -3 deep center DET = 1900 meV sT = 7·10 -14 cm 2 NT = 3·10 13 cm-3 a1,tot b1,tot a2,tot b2,tot a1,tot b1,tot a2,tot b2,tot Journal Title and Volume Number (to be inserted by the publisher) 3 Experiment We investigated with respect to deep traps epitaxial layers from two reactors for CVD growth, a hotwall reactor in detail described in ref. [1] and a chimney reactor presented in ref. [2].
For this study we used 4H-SiC material with different surface orientations ((0001) with 8° off angle, (11-20), and (03-38)) as substrate for the growth.
Temperature (K) 200 300 400 500 600 700 800 Fourier coefficients (pF) 0.00 0.05 0.10 0.15 0.20 0.25 n-type 4H-SiC y = a1,tot+ b1,tot+ a2,tot+ b2,tot Z1-center DET = 630 meV sT = 2.5·10 -16 cm 2 NT = 5·10 13 cm -3 deep center DET = 1900 meV sT = 7·10 -14 cm 2 NT = 3·10 13 cm-3 a1,tot b1,tot a2,tot b2,tot a1,tot b1,tot a2,tot b2,tot Journal Title and Volume Number (to be inserted by the publisher) 3 Experiment We investigated with respect to deep traps epitaxial layers from two reactors for CVD growth, a hotwall reactor in detail described in ref. [1] and a chimney reactor presented in ref. [2].
For this study we used 4H-SiC material with different surface orientations ((0001) with 8° off angle, (11-20), and (03-38)) as substrate for the growth.
Online since: September 2013
Authors: Xiu Mei Qiu, Run Bo Bai, Zong Mei Xu
The material parameters: elastic modulus E=206GPa, Poisson's ratio μ=0.3, Density ρ=7860kg/m3.
Acknowledgments This study was supported by the Open Foundation of State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering (2011490111) and Shandong Provincial Science & Technology Development Project (2012GNC11203).
Cao: submitted to International Journal of Solids and Structures (2008) [8] M.J.
Acknowledgments This study was supported by the Open Foundation of State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering (2011490111) and Shandong Provincial Science & Technology Development Project (2012GNC11203).
Cao: submitted to International Journal of Solids and Structures (2008) [8] M.J.
Online since: October 2014
Authors: Marius Daniel Roman, Raluca Andreea Felseghi
If a combination of a suitable luminophore and a suitable wavelength of light is chosen, the intensity of the luminescence and the time it takes to fade are dependent on the oxygen concentration around the material.
[4] Fändriks, I., Alternative Methods for Evaluation of Oxygen Transfer Performance in Clean Water, Printed at the Department of Earth Sciences, Uppsala, 2011, pp. 8-10
Biochemical Engineering Journal, 23, (2005), 277–289.
[4] Fändriks, I., Alternative Methods for Evaluation of Oxygen Transfer Performance in Clean Water, Printed at the Department of Earth Sciences, Uppsala, 2011, pp. 8-10
Biochemical Engineering Journal, 23, (2005), 277–289.
Online since: August 2013
Authors: Ju Zhong Li, Wei Li, Kai Chen, Qi Chun Peng, Sheng Peng, Dan Ping Fan
The influence of hot rolling process on the performance of HG70C
Qi-chun Peng1,a, Sheng Peng1,b, Dan-ping Fan1, Kai Chen1, Ju-zhong Li2, Wei Li2
1Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081;
2Wuhan Iron and Steel Corporation, 430080
aemail: pengqichun1964@163.com, bemail: 316291960@qq.com
Keywords: HG70C; Yield strength; Tensile strength; Under pressure; Banded structure;Martensite
Abstract.
Experimental material Take low alloy high strength steel HG70C casting blank sample in a steel mill, the HG70C smelting process for: 250t converter-RH refining-CC-hot rolling.
Welding Journal. 2004.25 (3): 117~120.
Experimental material Take low alloy high strength steel HG70C casting blank sample in a steel mill, the HG70C smelting process for: 250t converter-RH refining-CC-hot rolling.
Welding Journal. 2004.25 (3): 117~120.