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However, because of their hardness and chemical inertness, polishing of these materials is difficult.
The transformed materials are then removed mechanically by the rubbing between the disk and PCDC.
Rabinowicz, Friction and wear of materials, 2nd ed., John Wiley & Sons, 1995
Murty, et al.: Journal of materials Science 8 (1973) 437-442
Kosaca, et al.: Diamond and Related Materials 7(8) (1998) 1108-1117

One of the raw materials that have the potential to be biodiesel is Waste Cooking Oil (WCO).
Materials and Methods Materials The materials used are distilled water, fly ash from local plantation, NaOH pellets (Merck), methanol 98% (Merck), ethanol 98% (Merck), and used waste cooking oil.
Consequently, the measurement of FFA levels in WCO as raw materials must be carried out.
Journal of Taibah University for Science. 11(6): pp. 1019–1029
ALEXANDRIA ENGINEERING JOURNAL

In rolling method, plastic property of bamboo and rolling force are important factors.Bamboo is an unidirectional composite materials that is made up of the fiber and the matrix[4].
Materials and methods Materials The bamboo used in this experiment harvested at 1 years of age from Linan city in Zhejiang province .
Kyoto Japan, (2007) 3 Zhang Wei, Li Wenbin,Yao Wenbin:Journal of Beijing Forestry University.
DAS: Journal of Materials Science.Vol. 40(2005), p.5249 5 Zhang Wei: Theoretical and Experimental Research of Mechanical Method for Processing Bamboo Fiber. chapter,4,Beijing Forestry University,(2009).
The authors would like to express our special appreciation for Fund Committee and Science and Technology Department of Zhejiang Province.

Mechanism research Using cavity expansion theory, the elastic-plastic solutions of expansion problem of Coulomb material circular hole are available as follows.
Geological material parameters as shown in table 1.
Table 1 Parameters of materials No. materials E(MPa) (KN/m3) C(MPa) () 1 silty clay 28.0 0.28 1530 45 30.0 2 lining 3450 0.17 2540 Fig. 1 The numerical calculation model and meshes Computational simulation procedure In order to study the influence of shield tunnel backfill grouting pressure, revealing to the plastic deformation, stress and surface subsidence of tunnel surrounding rock, in the process of simulation set 6 kinds of state of grouting pressure to reveal the mechanism of grouting.
Acknowledgements This work was financially supported by China Postdoctoral Science Foundation (No. 20100480647) ; and Hebei construction science and technology research projects (2010-246).
International Journal of Rock Mechanics & Mining Sciences, 2002, (39): 905-916 [2] Xie Zitao, Jiang Yusheng; Liu Pin, Numerical Simulation Study on Surface Settlement and Surrounding Rock Deformation Caused by Backfill Grouting Pressure in Shield Tunneling.

Fracture of the material has not been modeled in these simulations.
Worswick, “Hot forming of boron steels using heated and cooled tooling for tailored properties,” Journal of Materials Processing Technology, vol. 212, no. 11, pp. 2386–2399, Jul. 2012
Wells, “A strain rate sensitive constitutive model for quenched boron steel with tailored properties,” International Journal of Impact Engineering, vol. 50, pp. 49–62, 2012
[7] Bardelcik, A., Worswick, M.J., Wells, M., The Influence of Martensite, Bainite and Ferrite on the As-Quenched Constitutive Response of Simultaneously Quenched and Deformed Boron Steel - Experiments and Model, submitted to Materials and Design, July 4, 2013
Impact Testing of a Hot-Formed B-Pillar with Tailored Properties, SAE International Journal of Materials and Manufacturing, 2013-01-0608, 6, pp. 157-162, 2013 [10] L. ten Kortenaar, A.

The 2A70 is materials of forged aluminum alloy, which can be mainly used in aviation, aircraft engine piston, impeller, compressor blades and other components and other used under high temperature parts because of its good machining and heat treatment enhanced features.
The material of tool is YG6X series ultra fine gain carbide, Ф10 mm end mill, the tool helix angle is 30˚, the number of teeth is three.
Chen: Journal of Shanghai Jiao Tong University, Vol.43(2009) No.1, pp.25-26.
Budak, Y.Altintas and Armarego:Transactions of the ASME Journal of Manufacturing Science and Engineering, Vol.118(1996), pp.216-224
Song: Chinese Journal of Mechanical Engineering, Vol.43(2007) No.4, pp.104-105.

Materials and methods Wood samples Two typical plantation wood species, Chinese fir (Cunninghamia lanceolata) and eucalyptus (Eucalyptus Pellita), were chosen in this work.
Journal of Wood Science, 2003,49(1):29-35
Discriminant analysis of wood-based materials using near-infrared spectroscopy.
Journal of Wood Science, 2003, 49(3): 275-280
Journal of Wood Science, 1999, 45(1): 30-37

(In Chinese) [2] Yuzhao Hao, Zhenqiu Cang, Fengyu Zhang.Journal of Anyang Institute of Technology, Vol.9(2009), p. 64.
Chinese Journal of Engineering Geophysics, Vol.7(2010) , p. 151.
(In Chinese) [5] Shaojie Feng, Shiguo Sun, Yuguo Lv,et al.Research on the Height of Water Flowing Fractured Zone of Fully Mechanized Caving Mining in Extra-thick Coal Seam,First International Symposium on Mine Safety Science and Engineering.(2011), p. 499 [6] Shiguo Sun, Hong Yang, Shaojie Feng,et al.Study for Deformation Control Technology of Bottom Slope of Conveyor belt in Open Pit Mine,2011 International conference on energy,evironment and sustainable development.(2011), p.1657 [7] Shiguo Sun, Zhiyi Bo, Jing Chen, Xiaofang Li.Research of prediction method in large slope for three dimensional object deformation.Advanced Materials Research, Vol.402 (2011), p.337 [8] Liang Tan, Shiguo Sun, Qifa Ran, et al.
Journal of University of Science and Technology Beijing.
Space properties of effects of slope stability by underground mining, Advanced Materials Research.

Materials and Methods Materials.
Zhou: Journal of Applied Polymer Science.
Bonizzoni: Applied Surface Science.
Zheng: Journal of Applied Polymer Science.
Maekawa: Textile Research Journal.

Validation cases also included more complex load cases such as different levels of loading, overloading and spectrum loading, different crack configurations and different materials.
Shown in Fig. 5 are two CGAP/FASTRAN predictions using two separate sets of material crack growth rate data.
The improved analysis incorporates new material crack growth rate data obtained during the 2010 SMP review.
Conclusion CGAP is a Windows-based and modularized computer model developed at the Defence Science and Technology Organisation of Australia for fatigue life and crack growth analyses of aircraft structures.
"The stress-level effect on fatigue-crack growth under constant-amplitude loading" International Journal of Fatigue. 29(9-11): p. 1608-1615