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Material model Machine tool unit is kg-m-s, Column is HT300 whose material is orthogonality isotropic material.
The relevant material coefficients are as follow.
The finite element method in engineering: Beijing: science press(1991)， p.262-273
Dynamics analysis of special structure of milling-head machine tool, Chinese Journal of Mechanical Engineering (English Edition), Vol. 21, 2008
The Finite Element Method ： Beijing: science press,1985.

hardness to yield strength ; represents material property; is real contact area; is critical contact area; is the total contact load. , , , are all dimensionless expressions.
This paper is for the friction pair between cast iron and steel, the main material parameters are showen in Table 1.
However, due to the dimensional change index and size change index may be related to materials of contact surface, processing methods, roughness and other factors, it is very difficult to determine them directly in theory, therefore, this paper will identify two parameters through experiments. 4.1 Test scheme This paper used APE500 surface morphology and UMT-3 pin-on-disk wear apparatus as experiment equipments, took the cast iron pins of UMT-3 pin-on-disk experiments as specimens, they are shown in Figure 1.
Journal of tribology, 1988,110(1):57-63. 3.
Journal of University of Science and Technology Beijing, 2002, 9(5): 360-362. 11.

Result also shows that some raw materials are lost or damages, making it unable to be used for production such as having a mark on the product since there is no process in separating products in separate categories.
Categorising Job No. percentage of total value percentage of demand quantity A 14,2 84.44 35.54 B 1,4,3 14.83 63.06 C 6,5,10,7 0.73 1.41 According to Table 2, raw materials in group A include STATIC SHIELDING BAG (METAL IN) and STATIC CONTROL RUBBER MAT according to the overall value, products under this category have relatively high total value (84.44 %).
,McGraw Hlill, New York, 2005 [3] Shih-Pin Chen, Yann-Horng Ho, Optimal inventory policy for the fuzzy newsboy problem with quantity discounts, Information Sciences 228 (2013) 75–89
Jeunet, Randomized multi-level lot-sizing heuristics for general product structures, European Journal of Operational Research 148 (2003) 211–228
[6] Bo Huang, Wei Dong Meng and Yu Yu Li, EOQ Model with Controllable Lead Time, Setup Cost and Backordering Rate , Advanced Materials Research 204 - 210 (2011) 464-469.

Finally, we are going to extend such analysis to other defects in SiC and other technologically relevant materials like gallium nitride (GaN).
Materials Science Forum.
Journal of Physics: Photonics 2.2 (2020): 022001
“QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials.”
Journal of physics: Condensed matter 21.39 (2009): 395502

Study on the ionic conductivity of PAALi-g-PEO polymer electrolyte Xiaowei Guo1,a, Shutang Wen1,b, Ming Qiao1,c and Xiaolin Jia2,d 1 School of Chemistry and Chemical Engineering, Xinxiang University, Xinxiang, China 453003 2 School of Material Science and Engineering, Zhengzhou University, Zhengzhou, China 450052 aguoxxxwei@163.com, bwensttnn@163.com, cjsb1616@163.com, djiaxxxlin@163.com Keywords: Pouring method, PAALi-g-PEO, Ionic conductivity Abstract.
There are two possible mechanisms: the first is ceramic materials provides a cross-linked center for the PEO segment, which reduces PEO segments reforming trend, and modifies chain structure, so this effect makes the surface of ceramic particles to be Li+ channels; the second is as Lewis acid the ceramic material reacts with Lewis alkali species in electrolyte, which reduces the ion-ion coupling, and promote salt dissociation through the formation of a" ion - Ceramic Complex".
Gu: Journal of Functional Polymers Vol. 12 (1999), p. 497
Dong: Chemical Journal of Chinese Universities Vol. 22 (2001), p. 1403
Li: Advanced battery materials (Chemical Industry Press, Beijing 2004)

Compared to the concrete, brick and steel, the lumber is the best sustainable development material, which has many merits such as environmental protection, energy conservation, material renewably and so on.
Journal of Structural Engineering, 2008, 134(8):1353-1363
Shanghai: Market manage central station of Shanghai building materials industry, 2009. ( in Chinese) [4] Qifang Xie, Xilin Lu, Haibei Xiong.
Journal of Building Structures, 2010, 31(SUPPL.2): 350-354. ( in Chinese) [5] Qifang Xie, Haibei Xiong, Xilin Lu.
Advanced Material Research, 2011(163-167):2234-2239 [6] American Society for Testing and Materials.

Study on Sub-Pixel Techniques for Accurate Image Measurement of displacement Zhedong Xie1, a, Xinjie Zhang2,b 1 College of Engineering and Technology, Jilin Agricultural University, Changchun, Jilin Province, 130018, China. 2 Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences，Changchun, Jilin Province, 130033，China azhedongxie@163.com, b elvis_jlu@yahoo.com.cn Keywords: Image Measure, Sub-pixel Location, Video Capture, Pixel resolving ability Abstract.
A method for measuring material deformation with linear CCD detectors [J].
IEEE Journal of Robotics and Automation, 1987, RA-3(4):323-344 [3] Q.f.
Journal of Astronautics,1999,3(20):38-42 [4] J.M.Wang, Z.B.Pu, H.Zhao, Z.Z.Lu.
Journal of Harbin Institute of Technology,2000,3(32):37-41 [5] Z.H.He，B.G.Wang，Y.B.Liao.

These two material mixed in certain proportion we can get Fluid-H, which can instead R134a applying in minicab refrigeration cycle, like as automotive air conditioner, and so on.
Science Press, Beijing,China，(2007).
Regulation(EC) Official Journal of the European Union,(2006)
International Journal of Refrigeration，Forum Vol.25 (2002), p.293–305 [7] Yuanyuan Duan, Mingshan Zhu, Lin Shi, Lizhong Han: Study on Thermophysical Properties for Enviroment-Friendly Refrigerants of Trifluoroiodomethane and Difluoromethane (D).
International Journal of Refrigeration，Forum Vol.33(2010)，p.553-557

References [1] Meysam Shadkam and Hamed Mojallali, Speed control of DC motor using Extended Kalman Filter based Fuzzy PID, International Journal of Information and Electronics Engineering 3 (2013) 109-112
[2] Senthilkumar.M and Vijayarangan.S, Design of LQR controller for active suspension system, Indian Journal of Engineering & Material Sciences 13 (2006) 173-179
[7] K.Rajeswari, P.Lakshmi, Simulation of suspension system with sliding mode observer and control, Journal of Electrical Enginering 11 (2011) 76-83

At the same time, it considers the storage material storage and release ability.
Acknowledgments The paper is supported by the Key Project of Chinese Ministry of Education (No.212007) and Tianjin City High School Science& Technology Fund Planning Project (No.20100420).
Journal of Chemical industry and Engineering, 53(11) (2002) 1182-1187
Chinese Journal of Chemical Engineering, 12(1) (2004) 1-7
Journal of Shanghai Jiao Tong University. 34(9) (2000) 1187-1190