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Numerical Modeling and Simulation Analysis of Temperature Field Of Disc Brake on Trains Guoshun Wang1, a, Rong Fu2, b and Liang Zhao3, c 1School of Mechanical Engineering, Dalian Jiaotong University, Dalian, 116028, China 2School of Materials Science and Engineering, Dalian Jiaotong University, Dalian, 116028, China 3School of Mechanical Engineering, Dalian Jiaotong University, Dalian, 116028, China awanggsfur@yahoo.com.cn, bfur@djtu.edu.cn, czhl@djtu.edu.cn Keywords: Disc Brake, Temperature Field, ABAQUS Software, Finite Element Analysis Abstract: The simulation calculation on the temperature field of the disc brake system on high-speed trains under the working condition of constant speed at 50Km/h is made.
In the process of simulation, the heat flow between the brake disc and the brake pad is set in the proportion of 8 to 2, the friction factor can be obtained by actual measurement, and the friction factor at 50km/h is 0.35; the brake disc is made of 4Cr5MoV1Si, the brake pad is made of Cu-based powder as metallurgy material.
The parameters of the materials used are shown in Table 2.
Table 1 Dimensions of model Size of brake disc Size of brake pad Inner radius 160 Outer radius 320 Friction radius 240 Thickness 20 Radius of wheel 445 Radius of brake pad 20 Height of brake pad 20 Table 2 Material parameter Brake disc Brake pad Density (kg·m-3) 7800 5500 Coefficient of heat conduction (W·(m·K)-1) 61 74 Specific heat (kJ·(kg·K)-1) Coefficient of heat expansion (／K-1) 745 1.16e-5 436 1.1e-5 Result and analysis by simulation calculation Changes of temperature distribution on disc surface as friction time changes.
References [1] Qun Ding, Jilong Xie Journal of the China Railway Society 2002,21(6):35-38(In Chinese) [2] Junyi He, Xiangdu Lin Numerical methods applied in nonlinear structure engineer Beijing: National Defence Industry Press 1994:68-72(In Chinese) [3] Fanhua Zhou Calculation of Disc Brake Temperature in 15-Cycle Braking Automotive Engineering 2001, 23(6):411-418(In Chinese)

A preliminary investigation on friction stir spot welding of steel / Mg Xijing Wanga , Changqing Zhangb, Boqiang Li c and Tian Li 1State Key Laboratory of Advanced Non-ferrous Materials, Lanzhou University of Technology, Lanzhou 730050, CHINA awangxj@lut.cn, bzcq4321@yahoo.cn, cliboqiangdy@163.com Keywords: Friction Stir Spot Welding, Rotating tool without pin, process parameters, atomic diffusion, microscopic analysis Abstract.
WE-100 universal materials testing machine was applied to test the shear force of joint.
Swartzendruber: Binary Alloy Phase Diagrams, ASM international, Materials Park,OH, p.1722 [2] guohong luan,guang li weibing wang etc:friction flow welding technology,vol.31(2010),p.1 [3] haitao wang,qingjie song,chunli yang etc: study of wetting and spreading out of HS201 in cold matrix hot-wireTIG welding,production Theme,vol.12(2008),p.40 [4] shichun li, TFDC phase map, Progress in Natural Science,vol.13(2003),p.1154 [5] yuqiang song,shichun li, study of Mg powder and Zn powder sintered to form intermetallic compounds, Chinese Journal of Rare Metals vol30(2006),p.12

Influence of experimental parameters on the synthesis of gold nanoparticles by electroless deposition Mikhael Bechelany*1,2, a, Jamil Elias2,b , Jihane Hankache2,c, Pierre Brodard2,d, Laetitia Philippe2,e and Johann Michler2,f 1 Institut Européen des Membranes (UMR CNRS 5635), Université Montpellier 2, Place Eugène Bataillon, 34095 MONTPELLIER, France 2 EMPA, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Mechanics of Materials and Nanostructures, Feuerwerkerstrasse 39, CH-3602 Thun (Switzerland) amikhael.bechelany@iemm.univ-montp2.fr, bjamil.elias@empa.ch, c jihane.hankache@chemie.uni-goettingen.de, dpierre.brodard@empa.ch, elaetitia.philippe@empa.ch, fjohann.michler@empa.ch Keywords: Gold, nanoparticles, nanorings, nanocrowns, natural lithography, saccharin, gelatin Abstract.
Christiansen, Journal of Crystal Growth, 312, (2010), 2887–2891 [6] J.
Gauthier, ACS Applied Materials & Interfaces, 6, (2010), 1630–1636 [8] W.

In: Applied Mechanics and Materials, 13th International Conference on Industrial, Service and Humanoid Robotics, Štrbské Pleso, Slovakia, Vol. 613 (2014), p. 292-298. - ISBN 978-303835202-0 - ISSN 1660-9336 [3] Poppeová, V. – Čuboňová, N. – Uríček, J. – Kumičáková, D.: Automatizácia strojárskej výroby.
In: MM Science Journal. - ISSN 1803-1269(P). – Special Edition: Proceedings of the RAAD 2011. 20th International Workshop on Robotics in Alpe - Adria-Danube Region (RAAD), October 5-7, 2011, Brno, Czech Republic., 2011, s. 78-83 [5] Binka, J., Hricko, J.: Compliant Mechanisms Exploited as Micro-Grippers.
Setting up a work centre based on the Profibus network, In.Applied Mechanics and Materials, Vol. 282 (2013),pp. 51-58
Applied Mechanics and Materials, Vol. 282, ISSN 1660-9336, pp. 1-6. (2013)

China 2College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, P.R.
These materials belong to the extensively studied class of relaxor ferroelectrics, for which the characteristics of the ferroelectric phase transition (its smearing and temperature) and, hence, all the parameters are governed by the composition, i.e., the [Sr]/[Ba] concentration ratio [2,3].
C(8)-O(5)-Sr(1) 130.0(13) C(8)-O(5)-Ba(1) 87.5(12) Sr(1)-O(5)-Ba(1) 142.3(6) C(6)-N(1)-Ba(1) 120.8(12) C(2)-N(1)-Ba(1) 120.8(11) C(1)-O(1)-Ba(1) 122.1(12) C(7)-O(3)-Ba(1) 119.2(12) N(1)-C(6)-Ba(1) 39.4(9) C(7)-C(6)-Ba(1) 78.1(10) O(3)-C(7)-Ba(1) 41.9(9) C(6)-C(7)-Ba(1) 76.3(9) N(1)-C(2)-Ba(1) 39.0(8) C(1)-C(2)-Ba(1) 75.3(11) O(1)-C(1)-Ba(1) 39.5(9) C(2)-C(1)-Ba(1) 79.2(11) C(8)-O(6)-Ba(1) 96.7(12) C(9)-N(2)-Sr(1) 121.8(12) _____________________________________________________________ Acknowledgments This study were supported by the Natural Science
ZR2010BL025), Open Project of State Key Laboratory of Supramolecular Structure and Materials (No. sklssm201323)(Jilin University) and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry (No. 2011-13)(Jilin University) References [1] O.
Pavlovskii, Journal of Structural Chemistry, 48, 698(2007).

Moreover, an increasing number of publications in domestic and international journals suggest the important bioactivities of the spores of G. lucidum [6, 7].
Near- infrared (NIR) spectroscopy has become one of the most attractive and used methods for analysis of agricultural-related products and plant materials allowing for the simultaneous, rapid and nondestructive quantification of major components in the food matrix[8-10].
Experimental Materials.
Acknowledgements This work was financially supported by the Special Fund for Quality-Science Research project "doubles strike" key geographical indication protection technology on the origin of Chinese medicinal materials inspection appraisal method (2012104019-5).

Transducer materials are chosen such that the acoustic impedances of the front and back masses match that of the piezoelectric material and therefore minimise internal reflections [5].
In order to avoid unnecessarily complicated models of the joint interfaces and piezoelectric losses, a global damping ratio is used for all materials.
These modal frequency results are in agreement with the FEA results to within 6% and the differences may be ascribed to assumed material specifications, damping estimations and simplifications of the boundary conditions.
Mahdavinejad: Finite Element Dimensional Design and Modeling of an Ultrasonic Transducer, Iranian Journal of Science & Technology, Transaction B, Engineering, 29(B2), (2005).

Ariffin3,c 1 Graduate student, Department of Mechanical and Materials Engineering Universiti Kebangsaan Malaysia, Bangi 43600, Selangor DE, Malaysia 2 Department of Mechanical Engineering, Syiah Kuala University Jl.
Syech Abdul Rauf 7 Banda Aceh, Indonesia 3 Department of Mechanical and Materials Engineering Universiti Kebangsaan Malaysia, Bangi 43600, Selangor DE, Malaysia a syarizal.fonna@gmail.com, b ridha@tdmrc.org, c kamal@eng.ukm.my Keywords: Inverse Analysis, boundary element method, particle swarm optimization, reinforced concrete, corrosion Abstract.
Vrahatis, Information Science Reference, New York (2010)
[5] Kyun Ho Lee, Seung Wook Baek, Ki Wan Kim, International Journal of Heat and Mass Transfer, 51, (2008), p. 2772-2783
Ariffin, Key Engineering Materials, Vols. 462-463 (2011), p. 230-235

Journal Citation (to be inserted by the publisher ) Copyright by Trans Tech Publications Evaluation of Macroporous Biphasic HA-TCP Ceramic as a Bone Substitute K.S.
Bones can regenerate themselves to repair defects up to a certain size but if the defect is too large and severe the suitable implant materials have to be applied to facilitate the bone repair [1].
To overcome the limited availability of natural bone graft materials for hard tissue repair and replacement, various synthetic biomaterials have been developed.
Materials and Methods The biphasic HA-TCP ceramic with macroporous structure was prepared according to N.
Acknowledgement This work was supported by a Grant-in-Aid for Mission Oriented Basic Research Programs from the Korea Science and Engineering Foundation (R01-2001-000-00429-0).

Journal Citation (to be inserted by the publisher ) Copyright by Trans Tech Publications In Vitro Cytocompatibility of Osteoblastic Cells Cultured on Chitosan-Organosiloxane Hybrid Membrane Y.
Title of Publication (to be inserted by the publisher) Materials and Methods Materials preparation An appropriate amount of chitosan (Aldrich ®, high molecular weight) was dissolved in 0.25 M acetic acid aqueous solution to attain a concentration of 2 (w/v) %.
The wettability was assessed by the sessile drop method, using distilled water as the testing liquid and an automatic contact angle meter (Kyowa Interface Science, Model CA-V).
MG63 cells were cultured (10 4 cellcm -2) up to 6 days in control conditions (absence of materials, standard plastic culture plates) and on the surface of the hybrids.