Search results

But because the critical speed is relevant with rotor’s materials, geometric shape, size, structure, supporting and working environment, and many other factors, calculation value and the actual value often exist certain error, thus increasing critical speed calculation accuracy is the emphasis of research [4].
Dou: Journal of Vibration and Shock, Vol. 28 (2009) No.5, p.87
Ai: Journal of Vibration and Shock, Vol.29 (2010) No.11, p.245
Zhang: Journal of Shenyang Institute of Chemical Technology, Vol.21 (2009) No.1, p.74
He: Journal of Propulsion Technology, Vol.21 (2000) No.3, p.40.

Materials and methods The research site is in the upper reaches of the Minjiang River between the Tibetan plateau and Sichuan Basin, situated at latitude 103°10' N and 103°54'N and longitude 31°15'E andl32°32' E.
Journal of Liaocheng University (Nat.
Journal of Henan Normal University (Natural Science), 2009, 37(2): 120-124.
Journal of Jilin Agricultural Sciences, 2011, 36(4):61-64.
Southwest China Journal of Agricultural Sciences, 1996, 9(Special Issue on C.R.): 147-153.

Journal Citation (to be inserted by the publisher) Copyright by Trans Tech Publications Dynamic Response of a Crack in a Functionally Graded Material under an Anti-Plane Shear Impact Load Jan Sladek1, Vladimir Sladek1 and Chuanzeng Zhang 2 1 Institute of Construction and Architecture, Slovak Academy of Sciences, 84220 Bratislava, Slovakia, email: usarslad@savba.sk 2 Department of Civil Engineering, University of Applied Sciences Zittau/Görlitz, D-02763 Zittau, Germany, email: c.zhang@hs-zigr.de Keywords: Meshless method, Local boundary integral equations, Functionally graded materials, Transient dynamic crack analysis, Stress intensity factor.
The spatial variation of material parameters of the FGM can be arbitrary.
Introduction The mechanical properties of functionally graded materials (FGM) are continuously varying in position.
An alternative method to the very established and widely applied FEM is the boundary element method (BEM), which has been proven to be highly accurate and efficient for dynamic crack analysis of homogeneous and linear elastic materials [14-16].
Shukla: Mechanics of Materials, Vol. 31 (1999), p. 579

Materials Science & Engineering C-Materials for Biological Applications (2011), p. 1405-1411
Advanced Materials, 2010
Brazilian Journal of Physics (2006) p. 1318-1343
[18] Soler, J.M., et al., The SIESTA method for ab initio order- N materials simulation.
Journal of Physics: Condensed Matter (2002), p. 2745

Journal of The European Ceramic Society 24 (2004) 1 – 10
[6] German, Randall M .1984. “ Powder Metallurgy Science”.
Iranian Journal of Material Science and Engineering Vol.8.No. 3 (2011) [10] Ramaswarny, Parvati et.al.
Composites Science and Technology. (1997) 81 – 89
[11] A.G Evans, Dr Mumm, JW Hutchinson, G.H.Meier, F.S.Petit, Progress in Materials Science (2001) 505-553 [12] Molly M.

Discussed four kinds factors, which are the pile elastic modulus Ep, the external friction angle σ, the material parameters k1 and the allowable settlement Sa, effect on the effective pile length.
Fig.1 The effect of on Fig.2 The effect of on Fig.3 The effect of on Fig.4 The effect of on The effect of material parameters on the effective pile length .
ZHAO: Journal of the China Railway Society , Vol. 20 (1998), in Chinese, pp. 93-97 [3] X.
HUANG: Chinese Journal of Rock Mechanics and Engineering, Vol. 25 (2002), in Chinese, pp. 76-79 [5] Y.J.
SHEN: Calculation of soil mechanics (Shanghai Science and Technology Press, shanghai 1990), in Chinese

Tellurium Extraction from the Unique Independent Tellurium Ores in China by Bioleaching Yafei Guo1 , Tianlong Deng1,3, Nan Zhang2, Mengxia Liao3 1Tianjin Key Laboratory of Marine Resources and Chemistry Tianjin University of Science and & Technology 2Tianjin Institute of Geology and Mineral Resources Chinese Geological Academy of Sciences Tianjin 300170, China 3College of Materials, Chemistry and Chemical Engineering Chengdu University of Technology Chengdu 610059, China Corresponding author: T.L.
As to the progresses of tellurium recovery in a long time was based on the second-hand raw materials such as from the anode mud of metal smelting plants as the semifinished materials when other metals produced for lacking the independent tellurium deposit resources in the world [3].
Materials and Bacterial Culture X-ray diffraction, scanning electron microscopy, and X-ray probe analysis were employed in the mineralogical identification of the ores.
Renyi HOU, the Board Chairman and the General Director of Sichuan Xinju Mineral Resources Development Limited Company for his kind help and great support in sampling and materials.
Journal of Bacteriology, 1959, 77(2): 642-647

Introduction The application of phase change materials in the building envelope has been paid more and more attention.
Anzhong Deng et al studied the light phase change thermal storage wall which is made of fatty acid composite phase change materials and polystyrene foam board [4].
Journal of Building Materials, 2008, 11(6): 684-689
Journal of Building Materials, 2008, 11(5):51-544
Journal of Building Materials, 2010, 13(2):161-164.

Materials Science and Engineering: A, 2013. 576: p. 346-355
Modelling and simulation in materials science and engineering, 2008. 17(1)
Modelling and Simulation in Materials Science and Engineering, 2017. 25(6)
Modelling and simulation in materials science and engineering, 2007. 15(3): p. 205
Comprehensive Materials Finishing, 2016: p. 408

Synthesis and characterization of poly (methyl methacrylate) -grafted-cellulose nanofiber Chun WANG1,a, Qing LI1, Jianhua YANG1, Junya WADA1, Takahiko KAWAI2,b, Yoshinori KASAI3,c, Hisato HAYASHI3, d, and Shin-ichi KURODA2, e* 1Graduate School of Engineering, Gunma University, Ota, Gunma 373-0057, Japan 2Faculty of Science and Technology, Gunma University, Ota, Gunma 373-0057, Japan 3Nissan Chemical Industries, Ltd., Chiyoda-ku, Tokyo 101-0054, Japan achunwang213@gmail.com, bkawaitakahiko@gunma-u.ac.jp, ckasaiyo@nissanchem.co.jp, dhayashihi@nissanchem.co.jp, eskuroda@gunma-u.ac.jp Keywords: Cellulose nanofibers, PMMA, Graft polymerization, Surface modification, Abstract.
Introduction The production of cellulose nanofibers (CeNFs) and their application in composite materials has gained increasing attention due to their high strength and stiffness combined with low weight, biodegradability, and renewability [1-4].
Puig: Journal of Applied Polymer Science, Vol. 66(2), 339-346 (1997)
Patra: Journal of Applied Polymer Science, Vol.91 (2), 981-990 (2004)
[5] F.Fahma, N.Hori, T.Iwata, A,Takemura: Journal of Applied Polymer Science, Vol.128(3) 1563-1568 (2012)