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In addition, since soil is a multi-phase material, special preocedures are required to deal with hydrostatic and non-hydrostatic pore pressures in the soil.
The safety factor is defined according to the following equation Eq 1 [2]: (Eq 1) where the input parameters refer to the shear resistance values listed in the specifications of the materials, whereas the reduced parameters refer to the reduced values used in the calculation.
Carpathian Journal of Earth and Environmental Sciences, vol. 7, nr. 2, p. 23-36.

Guoc Science and Technology Laboratory on Remanufacturing, Academy of Armored Forces Engineering, China atianxinli719251@sohu.com,bjianquan0514@yahoo.com.cn,cpuzzlele@tom.com Keyword: Engineering ceramics, Texture analysis, Grinding process, Surface roughness, GLCM Abstract.
Some researchers investigated the relationship between roughness and textural features for metallic material, but there is a lack of corresponding research on ceramics.
Table 1 shows their main material performances.
Table 1 The main material performances f experimental objects Parameters Density[g.cm-3] Porosity[%] HRA Strength[MPa] Elastic Modulus[GPa] Poisson Ratio Value 2.7～2.8 11～17 84 50～150 160～180 0.24 All specimens should be ground on an external cylindrical grinding machine, with the defined processing parameters according to an orthogonal test design.
Picard: Journal of Mathematical Imaging and Vision Vol. 2(1992) p. 5 [6] S.

Introduction With the development of magnetic material, power and electronic technology and computer control theory, permanent magnet synchronous motor (PMSM) AC servo system becomes increasingly popular.
Mathematical model of PMSM The assumptions about the PMSM model are as following: ignoring the iron core saturation; excluding eddy current and hysteresis loss; the conductivity of permanent magnet materials is zero; (4) The inductive electromotive force in phase windings is sinusoidal waveform.
Acknowledgement This paper is supported by the National Natural Science Foundation of China (60972092 & 61134003), National 863 Project of China (2011AA11A102) and the Fundamental Research Funds for the Central Universities (2012JBM094) .
International Journal of Innovative Computing Information and Control, vol. 7(2011), p. 1971-1982

But the cold extrusion bulk forming process of little chip or chipless is employed which not only can improve the ratio to material used but also can reduce the machining time to improve production efficiency, and it is more important that cold extrusion forming process can obviously improve the mechanical properties of the blank material to obtain high quality tubular products. [1]So, this type of part is worked more by cold extrusion processing in production.
However, manufacturing of extrusion punch is difficulty in that it must be guided by mandrel in order to effectively prevent the extrusion wall cracking and defective phenomenon to ensure that qualified extrusion parts will be achieved[3].If the solid blank is chosen as the extrusion material, although its shape is not high degree similar to shape of product, the forming process is far more than a hollow blank and more capable of meeting the production flexibility and practicality in contrast with the hollow blank.
Reference [1] R.J.Xu:Shanxi Coking Coal Science & Technology, (2006) No.6 p.35 (In Chinese) [2] D.M.Zhai: Cold Extrusion Technology and Die Design [M].
(Chemical Industry Press , China 2004), 2004 (In Chinese) [3] S.Z.Zhang: Mechanical Bearing (2006 )No.2 p.16 (In Chinese) [4] Z.H.Yu:Henan Mechanical and Electrical Engineering College Journal,(2007).No.5 p.6 (In Chinese) [5] L.L.Jia: Extrusion Technology and Die [M] (Machinery Industry Press, China 2004)(In Chinese)

Effects of Ball Mill Additives on Properties of Bronze powder Yudong Jiang1,a, Xiaolan Cai1,b*, Kaijun Wang1,c 1Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, P.R.China ajydwz123@126.com, bCXL9761@163.com, ckmwkj@tom.com * Corresponding author, Xiaolan Cai, Tel: 86-871-5189592; E-mail address: CXL9761@163.com Keywords: High Energy Milling; Bronze Powder; Additive Abstract.
The important advantages of bronze powder are their very good physical properties as well as the aesthetic appearance of the material.
Journal of Alloys and Compounds, 2009,469(1/2).:539~551
Rare Metal Materials and Engineering,2008,37(1):421~423.

It also affects heat and mass transfer and chemical reaction process between material and gas [1].
The solid phase in the heterogeneous material is called a solid matrix, while the rest space is called voids or pores.
It proves the novel model can successfully replace the distributor model. 7 Acknowledgment The authors gratefully acknowledge the financial support of Liaoning Engineering Research Center of New Material Advanced Prototyping Technology and Equipment Development of China (Project No. 2010402002).
Journal of China University of Mining & Technology, 2004, 23(3): 237-240
Science Press, 1995

Introduction Currently, worldwide scientists focus on developing environmentally friendly technologies, precluding the release of harmful substances into the atmosphere, disposal of available man-made waste, the rational use of non-renewable natural resources, the possibility of processing materials after the end of their operational period.
From above mentioned you can make sure that it is time to introduce clean fuel technology based on this material in Kazakhstan.
CWM: Its Past, Present and Future (International Journal of Coal Preparation and Utilization, London 1999)
Open Science (2013)

The specific simulation process is shown as follows: start Init,,,,,, Update the material properties: thermal conductivity, viscosity, conductivity Adjust the control parameters ,,, Update Convection terms, diffusion coefficient and source terms of UDS equations Solve the mass conservation equations ,momentum conservation equations ,energy conservation equations of ions and electrons, obtain the new variables,,,,,, Solve the electric field, magnetic field equation, obtain the Lorentz force Convergence end Y N Fig.2 Simulation process Results The following figures show several variables in the cross-section.
[3] Michael A.Lieberman and Allan J.Lichtenberg.Principles of Plasma Discharges and Materials Processing(version).Beijing:Science Press,2007
“Numerical Simulation of Effect of Arc Current and Axial Magnetic Field on Low Current Vacuum Arc Characteristics,” Electrotechnical Journal,vol.22 (1), pp.54-61, January 2007

Nadakudurua a Waikato Centre for Advanced Materials, School of Engineering, University of Waikato, Hamilton, New Zealand b EIGSI- Ecole d’Ingénieurs en Génie des Systémes Industriels, La Rochelle- France Keywords: Titanium alloys, powder consolidation, powder compact sintering, induction heating Abstract: Induction heating of powder compacts could be a very effective method for metal powder consolidation to get the final product or as an intermediate consolidation step to produce feedstock for metal powder forging or extrusion.
The latter is likely due to the high oxygen content of the powder, which makes the material brittle.
Acknowledgements: The authors would like to thank the Foundation for Research, Science and Technology, New Zealand, for funding of the research presented in this paper (contract: UOWX0708).
Ohyanagi, Journal of the European Ceramic Society 27 (2007) 301-306 [3] I.

Introduction As a kind of composite polymer material, formed through comibnaiton of inorganic magnetic particle and organic polymer, the magnetic polymer microsphere has not only the properties of inorganic and organic matters but also other special properties, so it has been increasingly concerned by scientific researchers.
Depending on its magnetic properties, the microsphere may also be used as a kind of special separation carrier or positioning carrier under the action of magnetic field, so it plays an important role in cell separation, immobilized enzyme, immunodiagnosis, targeted drug, magnetic shielding materials and acting as the carrier for catalyst, etc. [4].
Journal of Functional Polymers, 1997(1):128-132
Hefei: Press of University of Science and Technology of China, 2003, 1.