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All materials are homogeneous, continuous and isotropic.
Surrounding rock using Mohr-Coulomb yield material simulation, sprayed concrete, steel and secondary lining with the beam element simulation, and bolt use truss unit (stem cells) to simulate.
Table 2 Calculation model parameters Materials Category Modulus of elasticity E (Mpa) Poisson's ratio μ Bulk density γ (kN/m3) Cohesive force c (MPa) Friction angle j (°) Strongly weathered granite 1500 0.34 22 0.063 28 shotcrete 23000 0.2 23 Secondary lining concrete 29500 0.2 23 Steel arch 210000 0.2 78.5 Bolt 210000 0.2 78.5 Finite element analysis constitutive relation is elasto-plastic, using Mohr - Coulomb yield criterion, Partial meshing map is shown in Fig. 1.
Wang, Finite element numerical simulation of underground structures excavation, Journal of Wuhan University of Science and Technology (Natural Science Edition), 25 (2002) 10-12
Zheng, Shallow short bench tunneling construction numerical simulation analysis, Journal of Dalian Jiaotong University, 4 (2012) 43-47

Construction of high-quality p-type ZnSe nanowires/n-type Si heterojunctions and their nano-optoelectronic applications Min Lu1, a, Xingzhi Zhao1, Xiangan Wang1, Yongbin Ren1, Li Wang1*, b 1 School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei Anhui 230009, P.
Introduction As an important II–VI compound semiconductor with wide direct band-gap of ~2.70 eV (~460 nm) at room temperature, ZnSe is deemed to be a promising optoelectronic material and it has been widely used in diverse areas, such as light-emitting diodes, photodetectors, and photovoltaic devices [1-2].
So the ZnSe/Si heterojunctions is supposed to be one of the potential materials in the silicon-based optoelectronic integration.
Jhin-Wei, C., Nano-Structured ZnSe/CIS Heterojunction Solar Cells with ZnSe/ZnO Coaxial Nanowires, Journal of the Electrochemical Society. 158 (2011)
Y., Surface induced negative photoconductivity in p-type ZnSe:Bi nanowires and their nano-optoelectronic applications, Journal of Materials Chemistry, 21 (2011) 6736

Per unit length of the pipe network construction costs is mainly composed of two parts: Piping materials cost and pipe layout charges [3].
For solving of the sewage pipe network layout problem in towns, the cost data from the materials and construction of sewage pipeline in the surrounding towns and villages of Shanghai was investigated.
Various diameters of pipe material correspond to different cost.
Ribeiro, M.C.Cunha: Journal of Hydroinformatics Vol. 4 (2002), p.115
Wu: Wuhan University Journal of Natural Sciences, Vol. 34(1) (2009), P.60

It appears that the current magnesium based materials are meeting the conditions of such solutions to an increasing extent [1].
In this way it is possible to significantly improve the quality of the surfaces covered with different materials [12, 13].
O. lafsson, Journal of Alloys and Compounds, 446–447 (2007) 530–533
Zhou, Materials & Design, 45 (2013) 336-342
Zheng, Materials Science and Engineering C, 33 (2013) 618-625

Canadian Geotechnical Journal, 15: 113-122 (1978)
Canadian Geotechnical Journal, 35(2): 299-311 (1998)
Journal of Geotechnical Engineering, ASCE, 121: 43-56 (1995)
Canadian Geotechnical Journal, 39: 924-937 (2002)
Canadian Geotechnical Journal, 40(2): 403-418 (2003)

Up to date, the coefficients for various ME materials have been reported [7].
Among the ME materials, layered composites have become a central issue, since they possess stronger ME properties in comparison with the single-phase materials or particulate composites [3,4].
Thestarting materials were of reagent grade BaCO3 (>99%), TiO2 (>99.2%), Co2O3 (>99.5%) and Fe3O4 (>99.7%).
Journal of Magnetism and Magnetic Materials Vol.310 (2007), p.1157 [4] C.L.
Journal of Magnetism and Magnetic Materials Vol.316 (2007), p.624

Włosiński, The production and application of metal matrix composite materials, Journal of Materials Processing Technology 106 (2000) 58–67
Clyne, A simple development of the shear lag theory appropriate for composites with a relatively small modulus mismatch, Materials Science and Engineering: A 122 (1989) 183–192
Conference on Materials Engineering London (1985)
Singer, Temconex® - Continuous powder extrusion – Part I: Material flow and pressure generation, Journal of Materials Processing Technology (to be published)
Syngellakis, Shear lag models for discontinuous composites: fibre end stresses and weak interface layers, Materials Science and Engineering: A 270 (1999) 270–277.

Therefore, it shows an incomparable excellent performance when cutting alloy materials with high hardness at high speed, and becomes a relatively idealistic coated cutting tool when milling materials with high hardness at high speed, especially has good application prospect in manufacturing products with high precision [1].
But TiAlN coated cutting tool has its unique milling characteristics and rule in milling materials with high hardness and high strength at high speed.
Guo: Science Technology and Engineering (2009) No.22, p.6647-6650, 6672
Yang: Journal of Shanghai Jiaotong University (2005) No.11, p.5-9
[5] Dolinsek S: Materials Processing Technology (2003) No.133, p.63-70.

., (2010) “Performance Check of Biodiesel Application on Boiler Used in Biodiesel Pilot Plant” UNSRI, Proceeding of Sriwijaya International Seminar on Energy Science and Technology
Journal of Mechanical Engineering and Sciences, 4, 373-382 [10] Sierens R. and Rosseel E.: The computation of the apparent heat release for a hydrogen fuelled engine, Proceedings, ASME Fall Technical Conference, ICE 27- 3:99–108, 1996 [11] Espey, C., Pinson, J., and Litzinger, T., "Swirl Effects on Mixing and Flame Evolution in a Research DI Diesel Engine," SAE Technical Paper 902076, 1990, doi: 10.4271/902076
[27] Amir Khalid, “Effect of Ambient Temperature and Oxygen Concentration on Ignition and Combustion Process of Diesel Spray”, Asian Journal of Scientific Research, 2013.pp.1-11
Manshoor, Izzuddin Zaman, Azwan Sapit, Mutalib Leman, “Effects of storage duration on biodiesel properties derived from waste cooking oil”, Applied Mechanics and Materials, Volume 554, 2014, Pages 494-499, DOI: 10.4028/www.scientific.net/AMM.554.494
Manshoor, “Analysis of Mixture formation and Flame Development of Diesel Combustion using a Rapid Compression Machine and Optical Visualization Technique”, Applied Mechanics and Materials, Trans Tech Publications, Vols. 315, pp 293–298, (2013)

Chemical Reaction Model Generally, the vanadium based catalysts used as the catalyst in the SCR reactors, which consists of vitriol-contained materials, just like V2O5/WO3/TiO2.
Acknowledgement This study was supported by National Natural Science Foundation of China (Grant No:51109049).
Canova, “Two-level nonlinear model predictive control for lean NOx trap regenerations” ASME Journal of Dynamic Systems, Measurement and Control, Vol. 132, 041001 (13 pages), 2010
Clem: submitted to Journal of Materials Research (2003) [10] Maruthi N.
“Experimental and Theo-retical Investigation of the Dynamics of the SCR-DeNOx Reaction” Chemical Engineering Science, 51(11):2965–2970, 1996.