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We adopt two-layer shell, the inner material is aluminum which can bear the pressure from within and outside, thus can guarantee the tightness of the chamber.
Therefore, it’s necessary to cover some insulative material.
Han, et al: Journal of China Coal Society, Vol. 34 (2009) No.2, p. 275-279
Wu, et al: Chinese Journal of Analytical Chemistry (Science Publishing Company, China 2006), p103-p104
Sun: Journal of Agricultural Mechanization Research, Vol. 33 (2011) No.9, p.105-106.

The transmitted model of folding mechanism We define mechanism materials as steel, and elastic modulus E=2×1011Pa , Poisson's ratio, density , and the quality of  plate is 100kg; set the movement relationship between  each component, set drive on sliding rail, and the sliding velocity is 8mm/s; impose drive on the hydraulic cylinder, and the sliding velocity is 25mm/s; the allowed maximum rotation angle is 130 degree.
(7) Where V is the wear volume, A is the contacting area, KM is abrasion coefficient, N is normal load, L is the sliding distance, and H is material Brinell hardness.
Journal of Central South University.2009,40(5):1245~1251
Journal of Mechnical Strength. 2005,27(3): 381~387
Journal of Nanjing University of Science and Technology. 2002,26(5): 552~556.

If the material of the rollers and races is the GCr15, their yield strength would be 1667~1814Mpa with hardened and tempered treatment [5].
ASME Journal of Mechanical Design Vol. 123(2001)No.9, p.436
ASME Journal of Mechanical Design Vol.125 (2003) No.3, p.186
JSME International Journal Series C, Vol.46(2003) No.4, p.1509
Mechanical design handbook: Common Mechanical Engineering Materials (2010). p.503–513, Beijing Chemical Industry Press.

For milling tool with different materials process different workpiece, when working parameters are determined, the milling force can be calculated by corresponding equation, take milling tool with W18Cr4V and workpiece with 45# for example, the main milling force can be calculated by the following equation: where， is coefficient of milling force, it is 808;is milling width(mm);is milling depth(mm);is the feed of every gear tooth(mm/z);is the outer diameter of milling tool(mm);is tooth number of milling cutter.
However, friction, material non-uniformities and manufacturing and assembly errors in actual systems have very important effects on simulation results.
Dynamics of Machine Tool [M], Beijing：China Machine press，1983 [5] Du yi, The Experimental Modal Analysis Method's Applications in Surface Grinder Type MSY7115 and Its Dynamical Modification[D], Kunming University of science and Technology, Kunming,2002 [6] Mostaka.Yoshimeura.
Study on Dynamic Characteristics of Virtual Axis Hybrid Polishing Machine Tool by Flexible Multibody Dynamics[J].Journal of Engineering Manufacture-Proceeding of the Institution of Mechanical Engineers Part B, 2004, 218(9): 1067-1076 [8] Zhang Guang-peng, Shi Wenhao and Huang Yumei, Modeling and Analysis Method of Dynamical Characteristics for a whole Machine Tool Structure[J], Journal of Shanghai Jiaotong University, Vol.35,No.12,Dec.2001
Locally Linearized Dynamic Analysis of Parallel Manipulators and Application of Input Shaping to Reduce Vibrations[J], Journal of Mechanical Design, 2004, 126(1): 156-168.

Strong seismic events can cause severe inelastic behavior in civil structures, threatening the safety of occupants and resulting in potential human and material losses.
Journal of JSME, 79 (689), 86–91,1976.
Journal of Materials Science and Engineering, 443(2): 16—24, 2007
Journal of Structural Engineering-ASCE, 129(7): 845—856, 2003.

Bio-oil covers a wide application range, to be used as a liquid fuel for heat and power generation, or a raw chemical material for extraction and production of chemicals [4-6].
The aqueous phase contains all the water-soluble materials, while the oil phase generally contains the water-insoluble lignin derivates which is usually referred to as pyrolytic lignin.
Journal of Analytical and Applied Pyrolysis, 52 (1999) :33 [12] B.B.Uzun, A.E.Putun and E.Putun.
Journal of Analytical and Applied Pyrolysis, 2007 [13] H.F.Gercel.
Journal of Analytical and Applied Pyrolysis, 60 (2001) :41 [23] T.Ba, A.Chaala, M.G.Perez, D.Rodrigue and C.Roy.

When reducing the distance between the aircraft and reflective material, signal bending frequency increases.
When the aircraft flew over the reflective material, signal bending disappears.
The introduction of some scattering material, the control system calls directly from the database for the transfer of the algorithm model, the simulation needs to adapt to different environments.
Journal of Wuhan University of Technology Transportation Science & Engineering.
Journal of System Simulation.

Li Xiaoyuan et al.[31] obtained Al/TiO2/Fe2O3, Al/TiO2/Cr2O3, Al/TiO2/Bi2O3 etc. used in the stealth materials by liquid phase deposition.
Acknowledgements This work is supported by the “13115” science and technology innovation project in shaanxi province.
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Coleman, Monotonic and fatigue loading behavior of quasi-isotropic graphite/epoxy laminate embedded with piezoelectric sensor, Smart Materials and Structures, 7(1998) 822-826
Shin, A Study on The Change Between Tensile Loading and Natural Frequency of Carbon-Carbon Composite Materials, in 18th International Committee on Composite Materials (ICCM), Jeju Island, Korea: Ozden Ochoa, 2011
Callus, Delineation of structural damage from piezo-fibre-based sensor degradation, International Journal of Engineering Science and Technology (IJEST), 4(2012) 247-264
Coccia, Performance Assessment and Validation of Piezoelectric Active-Sensors in Structural Health Monitoring, Smart Materials and Structures, 15(2006) 1673-1683
Todd, Diagnostics for piezoelectric transducers under cyclic loads deployed for structural health monitoring application, Smart Materials and Structures, 22(2012) 1-11.

Enhancing the engineering properties of the materials comprising the dams; b.
This method ensures that the liquefiable materials are removed and replaced by non-liquefiable materials.
The added materials may compose of gravel, rockfill or cement mixtures.
Typical embankment section showing zones of liquefiable materials: 2A, 2B and 2C layers.
Several options were considered for the foundation improvement included: (1) excavation and replacement of the liquefiable foundation materials; (2) construction of stone columns; (3) jet grouting and (4) both deep and shallow soil mixing of the foundation materials.