Search results

The acquisition of data pair.According to the part contents of site material and referencing the experiment results of similar materials[4～6],considering the high rock-filled embankment engineering features,the E-B model parameter values in calculation is shown in Table1.Determine the upper and lower ranges of the parameters to be retrieved by Table 1.
References [1] ZHANG Mengxi; LI Gang: Rock and Soil Mechanics,Vol. 29 (2008), p.1243-1248 [2] ZHANG Zhijun1, DING Dexin: Journal of Central-south Institute of Technology, Vol.19 (2005) , p.1-5
[3] ZHONG Shoubin, ZHAO Minghua:Guangxi Communication Science & Technology, Vol.28 (2003) , p.63-65 [4] CHEN Changfu; LI Gang; CAO Wengui: Carsologica Sinica, Vol.24 (2005), p.119-123 [5] LIU Xiaosheng, WANG Xiaogang: Chinese Jounal of Geotechnical Engineering, Vol.26 (2004), p.601-606 [6] XIAO Huawen: Journal of Yangtze River Scientific Research Institute, Vol.21 (2004), p.41-45

The natural frequency of the dynamics of engineering structures is the function of structural geometry and material characteristic parameters, which is a complex non-linear relationship with a number of factors.
Sample selection Through finite element analysis software to get the standard sample library of GA-ANN, the number of standard input dimension and the group are nine, specific parameters are: elastic modulus 9 ( 10 )E × , material density ρ ,the segment length il and diameter id ,qualitym , 1 2 3[ , , ]ω ω ω and standard output library is for the former third-order natural frequency.
References [1] Tang Kelun, Gao Shuying and Liang Zhangquan: The improving of the finite element method for the calculation of Rotor system natural frequency(Chinese), Journal of Sichuan Institute of Light Chemical Engineering.
[3] Zhao Yucheng, Yangjing: BP neural network method for the rolling rotor system natural requency identification (Chinese), Journal of Applied Mechanics .Vol.25(2008),p.146-150
Putatundask: A neural fuzzy logic approach to material processing.

Selection of treatment for the waste propellant and the wastewater (1) The waste propellant With the gradual discarding of the incineration and explosion for the waste composite solid propellant, current treatments for it mainly include: 1) oxidation and degradation, to make the propellant non-energetic material; 2) recovery of oxidizer, aluminum powder, and other additives in the propellant; 3) turn the propellant into industrial explosives, incendiary, booster, pyrotechnic composition and fuel for boiler.
Chinese Journal of Energetic Materials, 2011, 19(4): 410-414 (in Chinese) [4] WANG Jun, LIN Xiangyang, PAN Renming.
Chinese Journal of Explosives & Propellants, 2011, 34(4): 70-74 (in Chinese) [5] HE Yuanhang, YU Hongtao, ZHANG Qingming.
Environmental Science&Technology, 2009, 32(2): 87-90 (in Chinese)

Friction and wear behavior of Micro-arc Oxidation Ceramic Coating On Pure Magnesium Surfaces Fei Chen1, a, Hai Zhou1,b ,Fanxiu Lv2,c 1Enginerring Education Center, Beijing Institute of Petro-chemical Technology, Beijing 102617, China 2School of Materials Science and Engineering, University of Science and Technology, Beijing 100083, China achenfei@bipt.edu.cn, bzhouhai@bipt.edu.cn, cfxlu@mater.ustb.edu.cn Keywords: pure magnesium ; microarc oxidation; tribological behavior Abstract.
Introduction Magnesium is a metal with the lightest weight among all the structural materials.
Ceramic has become the third generation of engineering materials to follow steel and aluminum for its special physical and chemical features, but its poor property in hardness and machinability limit its application.
In this paper, a dense ceramic oxide coating was prepared on a pure magnesium through microarc oxidation in a Na2SiO3-Na2WO4-KOH-Na2EDTA electrolytic solution. 1 Experimental 1.1 Experimental materials and method Experimental material adopts pure magnesium.
Journal of American Ceramic Socity, Vol. 81(5) (1998), p. 1365 [7] S.V.

Department of Chemical Engineering and Materials Science, University of California, Irvine, CA, 92697-2575, USA. 3.
INTRODUCTION Composite materials with intermetallic reinforcement have engendered scientific and technical interest due to their uniform interface, which in some instance has been documented to improve mechanical properties [1].
Materials Processing Technology, vol. 64, 1997, p. 335-341
[2] May, J., Journal of Metals, vol.
Proc. of Materials Science Forum, vol.

Introduction Cu-Cr-Zr alloys, due to a series of good performances such as mechanical properties, corrosion resistance, wear resistance, casting property, plastic processing properties, welding properties and so on, have become one of the most important materials in modern industry [1, 2].
Both materials were ground with different emery papers up to 1200 #.
As a consequence of their relative movement, the softer material breaks, leaving voids in the Cu alloy and transferring some material to the steel ring.
Berge, A new high strength, high conduetivity copper alloy wire, Wire Journal International 11(1991) 62-80
Rams, Dry sliding wear behavior of AM50B magnesium alloy, Materials and Design 56(2014) 549-556

Test materials and methods Types of filling.Test using clay soil as backfill material, main indexes such as shown in Table 1,Table2.
Moisture content on reinforcement soil interface effect.Reinforced materials using two geogrid EG65R and ER3030, respectively, one-way grille and two-way grid, each test choose the fixed drawing speed 5mm / min, water content in 10% and 15% ,when the test results are shown in Fig.6.
Acknowledgement This research work was supported by Grant No. 50909032 from the Natural Science Foundation of China and Grant No.
E2009000054 by Natural Science Foundation of Hebei Province of China.
Chinese Journal of geotechnical engineering, 1997, 19 ( 6): 56 – 61, In China

Ridley Manchester Materials Science Centre The University of Manchester and UMIST Grosvenor Street, Manchester, M1 7HS, UK Keywords: Superplasticity, SUPRAL100, in-situ deformation, microstructural evolution, continuous dynamic recrystallisation, geometrical dynamic recrystallisation, EBSD.
The material and specimens.
It was observed that:  No recrystallization occurred during pre-annealing of the material at 450°C for one hour.  The prior annealed material contained both HAGB's and LAGB's
Brough: Journal of Microscopy.
Bate: Materials Science Forum.

In many practical cases, such extremely fast rates are not desired for the formation of structural materials.
Therefore, dilution of the reaction mixture with an inert material (usually product of the reaction) is needed.
Merzhanov, Combustion and Plasma Synthesis of High Temperature Materials, Eds.
(Russian Academy of Science, 2000). 10.
Puszynski, Journal of Powder Technology, Vol. 156 (2-3), (2005), p. 164 16.

This material has many outstanding properties that allow it to be used as a transparent conducting oxide, dye sensitized solar cell, chemical sensors, photocatalyst and UV photosensors [1, 2, 3].
Acknowledgements This work has been supported by King Mongkut’s Institute of Technology Ladkrabang (KMITL) research fund and the National Nanotechnology Center (NANOTEC), NSTDA, Ministry of Science and Technology, Thailand, through its program of Center of Excellence Network.
Chen, High efficiency and stability of quasi-solid-state dye-sensitized ZnO solar cells using graphene incorporated soluble polystyrene gel electrolytes, Journal of Power Sources. 272 (2014) 485-490
Zhang, A novel photoconductive UV detector based on ZnO/RGO composite with enhanced photoresponse performance, Materials Letters. 150 (2015) 126-129
Lian, Synthesis and optical properties of flower-like ZnO nanorods by thermal evaporation method, Applied Surface Science. 257 (2011) 5083-5087