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Introduction The vegetation factor C is hard to be calculated through the ratio of the covered land soil loss to the standard contrast area soil loss, because it need long term field observation which is a big problem both on maneuverability and materials.
Journal of soil and water conservation, 2004, 18(5):75-79 (Ch)
Journal of soil erosion and soil conservation, 1996, 2(1):1-9 (Ch)
Chinese journal of soil science, 1997, 28(6): 251-253 (Ch)
Journal of tsinghua university, 2006, 46(9):1526-1529 (Ch)

This process is chosen over other traditional methods because of the advent of composite and high strength materials, multifaceted parts and also because of its elevated precision.
Investigation and text lacks much to say about the setting of input process parameters for machining copper materials by using WEDM.
[5] Anand Pandey, Shankar Singh (2010), ‘Current Research Trends in variants of Electrical Discharge Machining: A Review’, International Journal of Engineering Science and Technology, Volume 2(6), Pages: 2172-2191
Journal of Engineering Science and Technology’ Volume 2(10), Pages 5175-5186
[9] J.Prohazka, A.G.Mamlis, N.M.Vaxevanidis, (1997), ‘ The effect of electrode material on machinablility in Wire electro discharge machining’, Journal of Materials Processing Technology, 69 (1997), pages 233-237

The materials of the lower sheet flow into the die and the rivet shank flares, thus forming a mechanical interlock between the substrates.
Ship Science and Technology Vol.31(2009), P. 110, in Chinese
[3] Pickin C G, Young K, Tuersley I: Materials and Design Vol.28(2007), P.2361 [4] Abe Y, Kato T, Mori K: Journal of Material Processing Technology Vol.177(2006), P. 417 [5] He Xiaocong, Peason Ian, Young Ken: Mater Process Technology Vol.199(2008), P. 27 [6] X.C.
[7] He Xiaocong: Sci Res Essays Vol.6(2011), P. 6850 [8] He X C, Pearson I, Young K:Journal of Material Processing Technology Vol.199(2008), P. 27 [9] B.Y.
ZENG: Materials Review Vol.2(2013), P. 135, in Chinese.

Regional materials and mixing ratio in Datong region are used to make the concrete testing blocks.
Concrete: microstructure, properties and materials [M].New York: MeGraw Hill,2005
Journal of Materials in Civil Engineering, 2003, 15 (3) : 210-211
Journal of Shanxi Datong University(Natural Science), 2012, 28(4):55-57.
Journal of Shanxi Datong University(Natural Science), 2011, 27(4):69-71.

The photocatalytic activity of the materials were also tested for methylene blue degradation.
Shangguan, Photocatalytic energy storage ability of TiO2-WO3 composite prepared by wet-chemical technique, Journal of Environmentall Sciences 22 (2010) 454-459
Wang, Ordered mesoporous tungsten oxide and titanium oxide composite and their photocatalytic degradation behavior, Progress in Natural Science: Materials International 22 (2012) 654-660
Xiao, Jide Wang, “Synthesis of TiO2–WO3 nanocomposites as highly sensitive benzene sensors and high efficiency adsorbents”, Journal of Materials Chemistry 22 (2012) 123914-13917
Manolache, Optical Properties and Chemical Stability of WO3 and TiO2 Thin Films Photocatalysts, Romanian Journal of Information Science and Technology 10 (2007) 269-277.

The experiment results indicate that the crystal structure of the samples is fcc structure as same as that of the bulk materials.
References [1] Gleiter H., Nanocrystalline Materials, Prog.
[5] Gleiter H., Materials with ultrafine microstructures: retrospectives and perspectives, Nanostruct.
[9] Karthikeyan J., Berndt C.C. and Tikkanen J., Plasma spray synthesis of nanomaterial powders and deposits[J], Materials Science and Engineering, 1997, A238:275
[15] Chen D.H.and He X.R., Synthesis of nickel ferrite nanoparticles by sol-gel method, Materials Research Bulletin, 2001,36: 1369

Journal of Mechanical Science and Technology, 26(11), 3555-3563
Journal of Mechanical Science and Technology, 27(7), 2035-2041
Engineering Science and Technology, an International Journal, 17(4), 279-283
Journal of the Brazilian Society of Mechanical Sciences and Engineering, 40(3), 141
[48] Li, L., Li, X. and Hu, Y. (2016), "Free vibration analysis of nonlocal strain gradient beams made of functionally graded material", International Journal of Engineering Science., 102, 77-92

One factor that most affect the performance of this device is the wetting properties of the wick material, whereby a hydrophilic wick material is required to transport the liquid from the evaporator to the condenser.
The wetting properties must be owned by the wick material whereby a hydrophilic wick material is required to transport the liquid in capillary system from the evaporator to the condenser.
Hamid, "Thermal performance of biomaterial wick loop heat pipes with water-base Al2O3 nanofluids," International Journal of Thermal Sciences, vol. 76, pp. 128-136, 2// 2014
Irwansyah, "Effect of Concentration and Loading Fluid of Nanofluids on the Thermal Resistance of Sintered Powder Wick Heat Pipe," Advanced Materials Research, vol. 651, pp. 728-735, 2013
Xu, "Fabrication of superhydrophilic Cu< sub> 2 O and CuO membranes," Journal of membrane science, vol. 286, pp. 279-284, 2006

In 1950s, fracture mechanics as a branch of solid mechanics was developed as a discipline studying the strength of materials and structures containing cracks[1].
Erdogan and Gupta have obtained the analytic solution of composite materials containing crack in the interlayer by using integral transform[3].
Journal of Solid Mechanics and Material Engineering,2002,45(3): 371-378
(Natural Science Edition),2009.37(1):61-64.
Fracture and Fatigue Analysis of Functionally Graded and Homogeneous Materials Using Singular Integral Equation Approach[D].

:Marine Sciences, 2005(10):23~26
[4] X.Y.Zhang, Y.L.Du, L.Q.Zheng: Materials Protection, 1998(1):3~6
[5] B.Liu, K.X.Guo: Journal of Changsha University of Electric Power (Natural Science), 1998(3):296~301
[6] B.Liu: Materials for Mechanical Engineering, 2001(9):18~21
[8] K.W.Gao, W.Y.Chu: Chinese Journal of Material Research, 1999(4):337~342.