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For the physical mechanism of the dielectric relaxation, it was found that the effect of grain sizes for the high-k materials’ structure mainly originates from higher surface stress in smaller grain due to its higher concentration of grain boundary.
Introduction Oxide materials with larger dielectric constants (so-called high-k dielectrics) than 3.9 (SiO2’s dielectric constant) have attracted much attention due to their potential use as gate dielectrics in MOSFETs to overcome the gate leakage problem [1].
Materials, 5 (2012) 1005
Journal of Nanomaterials, 2011 (2011) Article ID 241470
Journal of Applied Physics, 105 (2009) Article ID 044102

Fig.2 showed the calculation method of the material removal volume.
The material removal speed was calculated by Eq.1.
Journal of Materials Processing Technology, Vol.160 (2005), p 15-23
International Journal of Machine Tools & Manufacture, Vol.47 (2007), p 2273-2281
Zhao, Mechanism analysis of electrical discharge machining in gas, Journal of Harbin Institute of Technology, Vol.36 (2004), p 359-362

Actually, bio oil contains many compounds, such as hydroxyl acetone, furfural, phenols, levoglucosan, etc., some of which are the important intermediate product for food, medicine or the other materials.
In order to obtain advantage materials, people have tried many approaches to transform the bio mass into some certain species, which are mainly phenols and carbon acids [2-4].
Methods Raw Material.
Cheng: Journal of Analytical and Applied Pyrolysis, Vol.88 (2010), p73 [7] R.
Zheng: Journal of Analytical and Applied Pyrolysis, Vol.80 (2007), p30 [9] P.

ACI Materials Journal, March-April (1998), p. 113-120 [4] Y.
Journal of Materials in Civil Engineering, February (1999), p. 58-65 [5] M.
Jouanal of Materials in Civil Engineering, May (1996), p. 63-69 [6] K.
Journal of Materials in Civil Engineering, May/June (2005), p. 264-275 [8] S.
Jouanal of Materials Science, 33 (1998), p. 5111 - 5118 [12] K.

Journal of Environmental Science and Engineering B 6, pp. 387-390, 2017
Journal of Material ProcessingTechnology 1998; 79: 30-40
Journal of Materials Processing Technology2008;195:160–170
Wang, The application on power mixed EDM in rough machining, Journal of Materials Processig Technology 129 (2002) 30-33
Journal of Materials Processing Technology 2010; 210: 631–641.

Ren, Material removal mechanisms of cemented carbides machined by ultrasonic vibration assisted EDM in gas medium, journal of materials processing technology 209, 1742–1746, (2009) [6] M.
Machining and Machinability of Materials, Vol. 19, No. 1, (2017)
Puertas, Grain Refinement Of Pure Copper By Ecap, Materials Science Forum Vols. 584-586 , Pp 393-398, (2008)
Fundamentals of superior sproperties in bulk nanoSPD materials.
Materials Research Letters. 2015:1-21.

Castro, M.F. de Campos: Journal of Magnetism and Magnetic Materials Vol. 328 (2013), p. 53
Schroeder: Journal of Magnetism and Magnetic Materials Vols. 104–107 (1992), p. 1712
[22] M.F. de Campos, J.A. de Castro: Materials Science Forum Vol. 727–728 (2012), p. 140
[23] M.F. de Campos: Materials Science Forum Vols. 530-531 (2006) p. 146
Missell: Journal of Magnetism and Magnetic Materials Vol. 320 (2008), p. e73

Moreover, it was found out that the jet is not formed at the angles of collapse less than some critical one, whose values depend on the materials of cumulative liner.
Lavrentyev, Cumulative charge and its action, Mathematical sciences progress, 12 (1957) 41–56
Innovative technology of creating hypercumulative shaped charges jet, 17th International Seminar New Trends in Research of Energetic Materials: Properties of Energetic Materials – Prediction and Reality, University of Pardubice, Pardubice, Czech Republic, April 9–11 (2014) 346-350
Technical sciences, 6 (2006) 380 - 389
Mech. - Science Press, USA, July 10-12, Nanjing, China, (2013) 45-55

Recently, carbon materials have been wide used as adsorbent.
Graphene nanoplatelets (N008-N) was purchased from Angstron Materials.
The XRD pattern of Fe3O4 and NGP materials were also plotted.
Preparation, Characterization and Photocatalytic Activity of Multifunctional Fe3O4/ZnO/CuO Hybrid Nanoparticles, Materials Science Forum 827 (2015) 37-42
Wang, Characteristics of equilibrium, kinetics studies for adsorption of fluoride on magnetic-chitosan particle, Journal of Hazardous Materials 143 (2007) 296–302.

The Material model of surrounding rock and ore body was coulomb-mohr model, The excavation and filling section parts used zero element model,gravity effect was considered in the process of simulation.mesh of slope induced by goaf was shown in fig.1.
References: [1] Hongbao Chai, Ping Cao, Guowu Chai, Hang Lin:Journal of Central South University:Science and Technology.
Vol. 41 (2010), p. 1528-1534 [2] Hongyong Li:Journal of Wuhan University of Technology.
Vol. 32 (2011), p. 3312-3318 [6] Shirong Shi, Linjie Chen, Chao Yu:Journal of ChongQing JiaoTong University(Natural Science).
Vol. 30 (2011), p. 273-276 [7] Yuli Liu, Haibo Liu, Dachao Lin, Shengjun Miao:Journal of Henan University (Natural Science).