Search:

  • Journal of Materials Science

Search Options

Sort by:

Publication Type:

Open access:

Publication Date:

Periodicals:

Search results

Online since: August 2014
Authors: Pavol Božek
Control of a robotic arm on the principle of separate decision of an inertial navigation system Pavol Božek Institute of Applied Informatics, Automation and Mathematics, Faculty of Materials Science and Technology, Slovak University of Technology, Hajdóczyho 1, 917 24 Trnava, Slovakia pavol.bozek@stuba.sk Keywords: INS, gyroscope, accelerometer, dynamic model, PID controller, MATLAB/Simulink Abstract.
These parameters can be calculated via geometry, dimensions and the density of the arm material.
The geometric model is appropriately positioned, the numeric value of the arm material density is assigned (subsequently the program automatically calculates the position of the centre, the weight and moments of inertia to the centre axes), then by the rotation of a geometric bond it is fixed to the stable space and the place of driving moment is prescribed.
Virgala, Modeling of Dynamic Systems in Simulation Environment MATLABSimulink – SimMechanics, American Journal of Mechanical Engineering.
Online since: June 2008
Authors: Jeong Woo Han, Seung Ho Han, Yong Yun Nam
Since both techniques make it possible to give the weld not only a favorable shape, which reduces the local stress concentration, but also a beneficial compressive residual stress to the material surface; the fatigue strength is remarkably increased after the treatment.
The material used in the welded joints was SM490B steel with a yield stress of 352MPa and tensile strength of 514MPa.
Acknowledgement The present study is a part of a project "Technology of Safety and Reliability for Magnetic Levitation Vehicle", being carried out with financial support from the Korea Research Council for Industrial Science & Technology (KOCI), which the authors gratefully acknowledge.
References [1] Haggensen, P.J. : Welding in the World, Vol.47, pp. 43-63 (2003) [2] Haggensen, P.J. et al. : IIW Commission XIII, XIII-1815-00 (2001) [3] Roy, S. et al. : International Journal of Fatigue, Vol.25, pp. 1239~1247 (2003) [4] Statnikov, et al. : IIW Doc.
XIII-1667-97 (1997) [5] Kirkhope, et al. : Marine Structures Vol.12, pp.447-474 (1999) [6] Han, J.W. et al. : Key Engineering Materials Vol.297-300, pp.781-787 (2005) [7] Han, S.H. et al. : International Fatigue Congress 2006, Atlanta, U.S.A., (2006) [8] Lawrence F. et al. : ASTM STP 776, pp.33-43 (1982) [9] Peterson, R. : Notch Sensitivity, McGraw Hill, New York, pp. 293-306 (1959) [10] Smith K. et al. : J.
Online since: July 2003
Authors: Zheng Zhong, Pin Tong, Y. Dai
The material properties of the pavement are 1 The high end of the speed range is higher than the current practice.
The damping ratio depends on the material and the stress level.
The higher stress can cause failure in the foundation material and/or the interfacial attachment, and lead to delamination between the pavement and the foundation.
This is important to the material failure in the foundation or at the interfaces between foundation and the pavement
Atluri, Dynamic response of finite sized elastic runways subjected to moving loads : a coupled BEM/FEM approach, International Journal for Numerical Method in Engineering, Vol. 38, pp.3143-3166, 1995 [4] G.
Online since: October 2013
Authors: S.I. Sidorenko, S.M. Voloshko, S.O. Zamulko, S.I. Konorev, Yu.M. Мakogon, O.P. Pavlov, I.E. Kotenko
Materials and Experimental Procedure The system of Ti/Ni/Si was obtained by the successive condensation of titanium (5 nm) and nickel (24 nm) layers by magnetron sputtering onto single crystal (001) silicide substrates.
Bisi: Materials Science Reports Vol. 9 (1993), p. 141 [6] M.C.
Lee: Journal of the Electrochemical Society, Vol. 151 (2004),p. 452
Online since: September 2013
Authors: Xiang Guang Chen, Lei Wu, Qiang Yang, Han Liu
In order to find the material which can meet the requirements of filter and can be repeatedly used for a long time, we do a lot of experiments, and find the material for filtering finally.
By measuring the refractive index of material to identify the composition or to determine the purity and concentration or to judge the quality, this method called the refraction method.
The legacy cleaning material on the sensor will contaminate or dilute the sample solution.
[2] LImin Hao,Jinxun Sun,Xinhui Xing,Zheng Li,Guotai Zhou, Split pleat fungus mycelium and extracellular polysaccharide fermentation conditions research, Journal of food and fermentation industry,2008,pp.56-62
Engineering in Life Sciences, 2005,pp.35-39
Online since: October 2011
Authors: Xiang Yang Duan, Zhi Wei Li, Yu Jie Gong, Yang Yang
Introduction Creep belongs to the category of material time-varying and is influenced by two main factors: age and load of concrete.
Conclusions The above analysis and study show that the mainly impacts of creep on Tianjin Tower are as follows: (1) Creep may cause different shrinkage or extension of vertical components of Tianjin Tower; for example, differences in types and areas of cross section of CFST columns, intensity of CFST, steel material of outer tube, loads may lead to different shrinkage of vertical components and result in the change in deformation and inner force of components of the whole structure
[3] Gardner, N.J., and Lockman, M.J..Design Provisions for Drying Shrinkage and Creep of Normal-Strength Concrete [J].ACI Materials Journal, 2001, 98(2): 159-167
Beijing: Science Press. 2006. 25. 34.
Online since: September 2013
Authors: Hui Su, Yu Song Sun, Jian Yan
For instance, to artificialize and channelize natural river by using impervious artificial hard material will impede ecological function and affect the structure integrity of biological system.
Introduction of hinged ecological slope Along with the economic development and social progress, the drawbacks of traditional slope protection in mining raw materials , construction and quality control become increasingly prominent.
Articulated conceret block is a new type of slope protection material, which is made of fine stone concrete pressed by vibrating concrete molding machine.
Acknowledgements This work was financially supported byWater Conservancy Science and Technology Program of Jiangsu Province Water Resources Department(2012070), Jinling Institute of Scientific Research Foundation(Jit-B-201215).
Journal of engineering mechanics, 1998(4): 892-900.
Online since: December 2012
Authors: Zhuang Bin He, Feng Qin, Qiong Nian Huang
Synchronous Surface Composite Structure Dressing Pavement Raw Materials In this experiment, lime stone with 10~15mm of average grain size were prepared, the amount of lime stone was 5.82kg/m2, and each performance index are listed in Table 1.
Acknowledgements Fund Projects: Scientific and Technological Project of Traffic of Guangxi, No. ((2009)95-08); Guangxi Natural Science Fund Projects, No.(2010GXNSFA013037).
Reference [1] Feng QIN, Hui-ming BAO, Journal of Guilin University of Technology, Application of Synchronized Crushed Stone Seal Coat New Technology, 01 (2007) 69-72.
Pennsylvania Dept of Transportation, Harrisburg.Bureau of Constructionand and Materials.
Online since: May 2013
Authors: Xi Jing Zhu, Guo Dong Liu, Ce Guo
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (50975265 and 51275490), Graduate Technology Fund of North University of China (20120904), and Taiyuan University Student Special Innovation and Entrepreneurship Project (120164060) References [1] M.
Shams: Physics Letters A Vol.375(2011), p.2348 [2] Shuyu Lin, Long Xu: Ultrasonics Vol 52(2012), p.103 [3] Zhu XJ, Gao YX: Advanced Materials Research Vol. 24-25(2007), p.165 [4] P.
Pawlus, T.Cieslak, T.Mathia: Journal of Materials Processing Technology Vol. 209(2009), p.6078 [5] GUO Ce, ZHU Xi-jing, LIU Guo-dong,etc: Modular Machine Tool & Automatic Manufacturing Technique Vol.6(2012), p.42
Online since: July 2011
Authors: Gui Bing Li, Yu Gang Guo, Xiao Yan Sun
Introduction Debonding of externally bonded fiber reinforced polymer FRP composite materials used for the repair of reinforced concrete flexural elements is commonly observed.
For the first method: (5) For the second method: (6) Concrete Society TR55 The UK’s Concrete Society Technical Report 55 – Design Guidance on Strengthening Concrete Structures using Fiber Composite Materials (Concrete Society, 2000) uses an approach similar to the first approach in the fib bulletin 14, described in 2.5.3, only with more generalized factors: (7) Italian CNR DT 200 The Italian National Research Council document Guidelines for Design, Execution and Control of Strengthening Interventions by Means of Fibre-reinforced Composites (National 2004) prescribes maximum allowable FRP stress to mitigate both plate end debonding and intermediate crack induced debonding (for a typical design case): (8) Verification of allowable FRP tensile strain in different Code provisions The statistical results of the ratios of the allowable-to-experimental tensile strain in FRP laminate at initial debonding according to different code provisions and models are presented in
[8] Zhang A.H., Jin W.L., and Li G.B., Journal of Zhejiang University SCIENCE A, 2006. 7(3): p. 43.
Showing 89141 to 89150 of 96451 items