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Investigation on the Simulation System of GTAW Operation Based on Virtual Reality Technology Zhenxin LIANG 1,a , Jianxun ZHANG 1,b , Yi PEI 1,c 1 Material Science and Engineering School, Xi'an Jiaotong University, Xi'an, China a liangzhenxin@163.com, b jxzhang@mail.xjtu.edu.cn,cpeiyi@mail.xjtu.edu.cn Keywords: Welding Training, Virtual Reality, Stereoscopic vision Abstract.
Gas shield Tungsten Arc Welding (GTAW) is an important process method in material processing.
There is unnecessary with welding material and welding energy in virtual environment simulated by computer.
It was fewer requirements to welding field and environment, and less consumption of welding material and energy.
:Information technologies for the welding industry - Opportunities for training and education.International Journal for the Joining of Materials.Vol.13(2001),p1-4 [2] Johnsen, M.R.; Cullison:A.Multimedia sources of welding information.Welding Journal.Vol. 81(2002),p26-30 [3] Mark Shelbourn,Ghassan Aouad,Mike Hoxley.Multimedia in construction education:new dimensions.Automation in Construction.Vol.10(2001),p265-274

Preparation of a Novel Night Vision Imaging System Filter for Display Applications Feng Dai1, a, Xaogu Huang1, b, Qitu Zhang1, c College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, China adaifeng20@126.com, bnthxg@126.com,czqt@njut.edu.cn Keywords: Night Vision Imaging System (NVIS), Compatibility, Near-infrared Absorber, NVIS Filter Abstract.
Polymer materials have several advantages that can not realized by the optical glass.
Polymer materials can be readily machined into complex shapes with high precision and high yields.
Experimental Materials.
Vol. 4(1995), p.37 [2] Kecong Ai: Journal of Applied Optics.

Madhu Kumar1 1 Post Graduate Department of Physics, Government Science College, Chitradurga- 577 501, India. 2 Dr.
Nanocrystalline ferrite materials are attracting an increasing interest nowadays.
Owing to the small characteristic size of their nanostructure, they exhibit novel properties which differ from those of materials with micron-sized features.
Aruna, “ Chemistry of Nanocrystalline Oxide Materials, Combustion synthesis, Properties and Applications” World Scientific Publishing, 2008
Grossinger, Journal of Applied Physics, 109 (2011) 093704-1-8

Rotor material is alloy steel.
The following conclusions can be drawn from simulation results: 1) Rotor material, accessory size and spacing of bearings have great impact on first critical speed. 2) Rotation speed, rotor material and accessories have great impact on vibration mode. 3) Rotation speed, accessory size, unbalance and number of bearings have great impact on amplitude.
Yang: Advanced Materials Research.
Ye: Key Engineering Materials.
Chen: Journal of Changchun University of Science and Technology.

Many methods have been used for measuring the electromagnetic properties of the materials [11].
Pardavi-Horvath, Characterization of nanostructured magnetic materials, J.
Sáha, Magnetic materials based on manganese-zinc ferrite with surface-organized polyaniline coating, J.
Selleri, Characterization of Dielectric Materials with the Finite-Element Method, IEEE Trans.
Composite Materials 46 (2011) 1497-1501

The nonlinear mechanical properties of SMA materials is determined by internal phase transition which caused by the specific temperature and transformation conditions.
Acknowledgements This work was financially supported by the Jiangxi province science and technology support project (20123BBE50088), the Education Department of Jiangxi province science and technology research project (GJJ13746).
(Natural Science Edition), 2008,36(S1): 111-113 [3] HANG Guanrong, WANG Zhenlong, LI Jian, WANG Yangwei.
One. dimensional thermome chanical constitutiv e relat ions for shape memory materials.
Journal of Intelligent Material Systems and Structures, 1990, 1(2) : 207-234

Materials and Methods Experiment is carried out at Shenyang Agricultural University Rice Research Institute.
Thirty-eight materials, including 29 accessions of weedy rice and 9 varieties of cultivated rice are used (Table 1).
SLTI reveals the great variation in drought tolerance among the materials, ranging from 0.29 to 0.71 for weedy rice, and from 0.29 to 0.56 for cultivated rice.
World Academy of Science, Eng.Technol.49: 105-106
Journal of China Agricultural Uniersity, 2001, 6(3): 16-20 [11] Molna´ r, I., L.

The constant ‘1.5’ is the specific volume of the gas (in m3/kg) calculated at standard temperature and pressure (T=298K, P=101.325kPa) Results and discussion The results are obtained for the following input values [3, 4, 10] Mass of the adsorbent (ms), kg 1 Specific heat capacity of the adsorbent (Cs), J/kg K 650 Thermal conductivity of the solid adsorbent (), W/(m K) 0.243 Specific mass flow rate of the gas (), g/s/kg 0.054 – 1.08 Constant (Kso), s-1 11×10-2 Energy of activation (Ea), J/mol 6000 Inner radius of adsorbent bed (ri), m 0.003 Bed thickness (th), m 0.008 Reactor wall material Steel Enhancement material Graphite Fin efficiency () 0.8 Total porosity () 0.8 Contact conductance between bed and the wall (hin), W/ (m2 K) 1000 External convective heat transfer coefficient (hout), W/ (m2 K) 8 Initial bed temperature (Ti), K 308 External fluid temperature (), K 308 Area ratio for fins (Ar
Mauran: Dynamic discharge and performance of a new adsorbent for natural gas storage, AIChE Journal Vol. 47 (2001), p. 2819–2830
Rabetsky: Adsorbed natural gas storage and transportation vessels, International Journal of Thermal Sciences Vol. 39 (2000), p. 1047–1055 [5] X.D.
Zhou: Performance simulation of adsorbed natural gas storage cylinders during charge, Journal of Chemical Industry and engineering (China) Vol. 54 ( 2003), p.1418–1423 [9] A.
Ng: On thermodynamics of methane + carbonaceous materials adsorption, International Journals of Heat and Mass Transfer Vol. 55 (2012), p. 565 – 573

Chinese Journal of Rock Mechanics and Engineering, 2007, 26: 3257~3269
Journal of the China Railway Society, 1999, 21(1): 62~66
China Civil Engineering Journal, 2006, 39(7): 99~103
Bei jing: Science Press, 2005: 116~123
China Civil Engineering Journal, 2000, 33(2): 101~106.

Surface Decontamination of Chemical Agent Surrogates Using Atmospheric Pressure Air Flow Plasma Jet．Plasma Science & Technology, 15(2013) 696-701 [2] Z.
Journal of Hazardous Materials, 195(2011) 30-54 [4] F.
Journal of Electrostatics, 57(2003) 313-323 [6] Y.
Journal of Hazardous Materials, 261(2013) 669-674 [15] Z.
Journal of Electrostatics, 68(2010) 390-393 [16] X.