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It includes several infectors, such as, online examination and approval materials situation, online consultation, online information services and the diversification of service channel
Journal of social sciences, Henan, 2012(2):70-74, In Chinese
Journal of intelligence magazine, 2008(6):91-93, In Chinese
Journal of information science, 2009(6):894-899, In Chinese
Science and technology management research, 2009(4):142-145

Rock Thermochemistry Laboratory and NEAT ORU, University of California, Davis, CA 95616, USA 4School of Molecular Sciences and Center for Materials of the Universe, Arizona State University, Tempe AZ 85287, USA ak.essa@jpu.edu.jo, bklilova@asu.edu, cleizhang@ucdavis.edu, dalexnav@asu.edu Keywords: Oxidation States, Complex Refractory Oxides, Mixed Valence Cations, Sodium Molybdate, Titrimetry.
Gaskov, Nanocrystalline complex oxides NixCo3-xO4: cations distribution impact on electrical and gas sensor behavior: Journal of Alloys and Compounds Vol. 828 (2020), p. 154420
[2] Joanna Kozak, Alan Townshend, Titrimetry, Overview, Encyclopedia of Analytical Science (Third Edition) (2019), p.111-120
Chemphyschem: European Journal of Chemical Physics and Physical Chemistry Vol. 12 (2011), p. 2207-15
Barceloux, Molybdenum, Journal of Toxicology: Clinical Toxicology Vol. 37(2) (1999), p. 231–237

Thus, it is better to avoid the materials pile up on the deck; 3) Cantilever state of one-fourth span is most sensitive to design parameters variation, monitoring and regulating related to design parameters approaching this construction stage should be strengthened.
Hamilton: Journal of Structural Engineering.
Journal of Beijing Normal University (Natural Science).
Journal of Wuhan University of Technology.
Journal of Nanjing University of Science and Technology.

The dynamic analysis of multibody systems with uncertain parameters using interval method Wu Jinglai1, a, Zhang Yunqing1,b 1 Center for Computer-Aided Design, School of Mechanical Science & Engineering, Huazhong University of Science & Technology, Wuhan, Hubei 430074, P.R.
Acknowledgement This research was supported by the National Natural Science Foundation of China (No. 11172108).
Huang: Transient waves in composite‐laminated plates with uncertain load and material property, International Journal for Numerical Methods in Engineering, Vol. 75 (2008), p. 253-274
Wang: Non-probabilistic interval analysis method for dynamic response analysis of nonlinear systems with uncertainty, Journal of Sound and Vibration, Vol. 319 (2009), p. 531-540
Bauchau: Review of Classical Approaches for Constraint Enforcement in Multibody Systems, Journal of Computational and Nonlinear Dynamics, Vol. 3 (2008), p. 011004

Evaluation of Inclusions in P/M Superalloy Hua Yuana, Zhou Lib, Guoqing Zhangc, Wenyong Xud and Na Liuc Science and Technology on Advanced High Temperature Structural Materials Laboratory, Beijing Institute of Aeronautical Materials, Beijing 100095, China ayuanhua173@126.com, bzhouli@126.com, cg.zhang@126.com, dxuwenyong@126.com, esnailtree@126.com Keywords: P/M superalloy, Non-metallic inclusion, EB-button.
Materials Review , 2002, 5: 1~4 [2] GUO Weimin, FENG Di ,WU Jiantao et.al.
Research and Development of P/M Superalloy Metallurgic Techniques  Journal of Materials Engineering,2002, 3: 38~42 [3] ZHANG Ying, Production Technology of Powder Metallurgy Superalloy Turbine Disk in Russia .
Journal of Aeronautical Materials ,2006, 3: 244~250 [5] ZHANG Yiwen, SHANGGUAN Yongheng.
Journal of Aeronautical Materials 2005, 8: 1~5

In addition, the difference in kinetic energy ΔE before and after the collision is dissipated by the joule effect and at the surface of the ball, but, this energy cannot be diffused entirely in materials considered as an infinite body.
Zulkiflia, Modeling of vial and ball motions for an effective mechanical milling process, Journal of Materials Processing Technology. 209 (2009) 4312-4319
[11] C.Suryanarayana, Mechanical alloying and milling, Progress in Materials Science. 46 (2001), 1-184
Gaffet, A mathematical and experimental dynamical phase diagram for ball-milled Ni10Zr7 , Journal of Computational Physics. 209 (1994) 351-361
Jones, An introduction to microstructures, processing and design, Engineering Materials 2, Department of Engineering, Cambridge University, 1999.

Journal of physics D: Applied physics. 2002，35：2872-2890
Mechanical science and technology, 2001, 1: 106-107, 109.
ASME Journal of tribology. 1983, 105(3): 598-604
Journal of engineering tribology, 2005, 38(8): 1013-1021
Journal of engineering tribology, 2004, 37: 119-127

Increase students’ retention of the material they have been taught 7.
Facilitate testing of conceptual material 10.
Because various variables of teaching maybe affect the teaching results, such as teachers(engagements, familiar to teaching materials, teaching style, teacher-students connection et al.); students’ background; teaching process(teaching method and materials et al.); assessment methods and tool.
San Francisco：Pearson Education，2005 [3] Clyde Freeman Herreid, “clicker” cases: Introducing case study teaching into large classrooms, Journal of College Science Teaching, Vol. 63,No.2,Octobor 2006:43-47 [4] T.
American Journal of Physics, 76(11), 1066-1069

From these results, the HAZ area did not grow until it reached the base material.
References [1] American Society for Testing and Materials, A.
Journal Material Processing Technology, 84, 122–129 by Yang, W.
Journal of Mechanical Engineering and Sciences 6 (2014): 988-94
International Journal for Research in Applied Science & Engineering Technology (IJRASET), Volume 3 Issue I, January 2015 [8] Talabi, S.

Usually, the load and material properties are regard as constants in design.
And these functions may be deviated by environmental variations from raw materials, manufacturing processes, or operational environments[2].
References [1] Department of Mechanical in Zhengzhou Institute of Technology, Cycloid Pinwheel Planetary Transmission, first ed., Beijing Science Press, Beijing, 1979
Chen , Robust Optimal Design in Engineering, Journal of Machine Design. 15(1998) 6-9
Feng , A Method of Sensitivity Analysis Based on Orthogonal Test, Journal of Machine Design. 5(1997) 4-7.