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But certain differences exist in materials smelting, machining, heat treatment and other aspects between domestic materials gear and ISO6336-1996 test gears[4-8].
The main idea is: there is a certain life of metal materials under alternating stress, and each time of alternating stress causes a small amount of damage.
Flašker, Experimental results of the fatigue crack growth in a gear tooth root, International Journal of Fatigue. 20(1998), P.669-675
[4] Faruk Mendi, Hilal Can, Mustafa Kemal Külekci, Fatigue properties of polypropylene involute rack gear reinforced with metallic springs, Materials & Design. 27(2006), P.427-433
[7] Lu Xi, Investigation of the region of fatigue crack initiation in a transmission gear, Materials Science and Engineering. 527(2010), P.1377-1382

The high performance concrete curing agent based on polyacrylic emulsion with hydroxyl monomer HPMA Rui Wang1,2,a, Lei Li1,2, Hongsong Wang1,2,b , Wenbin Wang1,2,c, Wei Wang1,2,d and Qian Tian1,2 1 State Key Laboratory of High Performance Civil Engineering Materials, Jiangsu Research Institute of Building Science, Nanjing, Jiangsu, China 2Jiangsu Sobute New Materials Co., Ltd., Nanjing, Jiangsu, China awangrui@cnjsjk.cn, bwanghongsong@cnjsjk.cn, cwangwenbin@cnjsjk.cn, dwangw@cnjsjk.cn Keywords: Concrete curing agent, Polyacrylic emulsion, Hydroxyl propyl methacrylate (HPMA) Abstract.
A number of materials have been proposed as concrete curing agents including aqueous dispersions of emulsion polymers such as polyvinyl acetate, polyacrylics or the like [6-7].
Experiment Materials.
Monteiro, Concrete Microstructure, Properties and Materials, (The McGraw-Hill Publications, New York 2005)
Yu, European Polymer Journal, Vol. 43 (2007), p. 1105.

So it is often caused the situation that the teaching materials and teaching special equipment is disconnected
Then following introduces the system implementation process and function according to material sorting system. 4.1 Material sorting system control requirements Material sorting system consists of five cylinder, three sensors, belts and blocks of different materials.
Acknowledgments This work was financially supported by teaching material construction project of Sichuan University of Science & Engineering (JC-1208) and Sichuan Provincial Key Lab of Process Equipment and Control Engineering (GKYY201105).
Journal Harbin UNIV.SCI&TECH. 2004, 9(6): 7-9(In Chinese) [3] Wang Hui-li.
Jiangsu Salt Science & Technology. 2006, (4):17-19(In Chinese) [5] Liu Li.

Internal noises can be divided into four species: photoelectric noises, mechanical noises, material noises and system noises.
Study of Filtering Noise of Image Based on MATLAB[J].Journal of Henan University of Urban Construction,2009
Analysis and Reality on Linear Filter about Numeric Image[J].Journal of Donghua University, Natural Science,2005
Wavelet Filtering Method and Its Application[J].Journal of Electronics & Information Technology, 2007
Journal of Applied Optics, 2011.

[2] TPG - thermal management material, Momentive performance materials, Momentive TPG brochure: http://epp.fnal.gov/DocDB/0005/000507/001/tpg.pdf
Zweden, Advances in Composite Materials for Thermal Management in Electronic Packaging, JOM, 6 (1998), 47-51
Marquis, TMS (The Minerals, Metals and Materials Society (2013), 1371-1377
Eustathopoulos, Wettability of carbon by aluminum and aluminum alloys, Materials Science and Engineering A254 (1998) 99–111
Ganor, The influence of a third element on the interface reactions in metal–matrix composites (MMC): Al–graphite system, Materials Science and Engineering A281 (2000) 239–247.

Solder joint technology materials, properties and reliability.
Materials Science and Engineering A, 2012, 556: 816-823
Journal of Alloys and Compounds, 2012, 541: 6-13
Materials Science and Engineering A, 2011, 528: 2686-2693
Materials Chemistry and Physics, 2008, 111: 17-19

Experimental Details Materials Analytical grade chemicals of CuSO4.5H2O, NiSO4.XH2O, MnSO4.H2O, H3Bo3 (Boric acid), C6H8O7 (Citric acid), HCl, H2SO4, NaCl and distilled water were used.
Bio-fouling-The Journal of Bio-adhesion and Bio-film Research, Vol. 1(1), pp. 79-96, (2009)
Sneddon, D.Kirkwood, The influence of fouling upon corrosion rates of steels and copper-nickel alloys in seawater, Construction and Building materials Vol.3 (1), pp.35-39(1989)
Journal of the Electrochemical Society 2000 147: 3311-3318
Journal of Applied Electrochemistry (2003) 33: 733. https://doi.org/10.1023/A:1025049802635 [13].

Effect of Silicon Sol on Anodic Oxidation Film of Titanium Alloys Huicong Liua , Liqun Zhub, Weiping Li c School of Materials Science and Engineering, Beihang University, 100191, China a liuhc@buaa.edu.cn, bzhulq@buaa.edu.cn, cliweiping@mse.buaa.edu.cn Keywords: titanium alloys, silicon sol, anodic oxidation Abstract: In this paper, the anodic oxidation film was prepared in the 1~3mol/L NaAlO2 solution with and without silicon sol added.
The authors are grateful to the key laboratory fund in School of Materials Science and Engineering, Beihang University.
Materials Characterization(2007), Vol.58(2), p114
Journal of University of Science and Technology Beijing(2006), Vol.13(5), p450
Functional materials(2005), Vol.36(6), p923.

Experimental Section Raw Materials and Measuring Apparatus.
Journal of Applied Polymer Science, 2002, 83(14), 2961-2966
Journal of Applied Polymer Science, 2008, 110, 908-914
Journal of Applied Polymer Science, 2014, 131(16), 40636
Dannhauser, Polymers: chemistry and physics of modern materials. 1974

It has been paid much attention as transparent semiconductor material and gas sensing material in the late 1990s [5-8].
After filtering the copper oxalate precipitation, the filter cake was mixed with Sr(NO3)2 solution to get slurry solution of materials.
When the n-semiconductor and p-semiconductor materials are well joined together, the Fermi level of the two semiconductors will be at the same level.
Honaga, and S Fujitsu: Journal of the European Ceramic Society Vol. 25 (2005) ,p.2167 [9] D.S.
Lokhande: Applied Surface Science Vol.254 (2008),p. 3269 [10] M.