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Online since: February 2009
Authors: Xiao Ming Jia, Fei Wang
(3)
According to principle of electrochemistry erosion, when metal materials undergo electrochemistry
erosion, cathode reaction and anode reaction must react equally at the same time, when one reaction is
inhibited, the other is impossible to go on.
SEM figure of cemented carbide piece soaked in solution containing 0.6% triethanolamine and 0.25% benzotriazole is showed in Fig.3, It can be seen that benzotriazole and cobalt form complex compound, it covers on surface of cemented carbide in form of film and protects the material from rusting,thus the cobalt leaching of the cemented carbide is inhibited.
Brutto: Journal of Cutting Tool Engineering, (1996), NO.12, pp.50-56
Su : Engineering Inorganic Chemistry.( East China University of Science and Technology Publisher, Shanghai 2002)
Journal of Corrosion and Protection, Vol.25 (2004), NO.7, pp.318-319.
SEM figure of cemented carbide piece soaked in solution containing 0.6% triethanolamine and 0.25% benzotriazole is showed in Fig.3, It can be seen that benzotriazole and cobalt form complex compound, it covers on surface of cemented carbide in form of film and protects the material from rusting,thus the cobalt leaching of the cemented carbide is inhibited.
Brutto: Journal of Cutting Tool Engineering, (1996), NO.12, pp.50-56
Su : Engineering Inorganic Chemistry.( East China University of Science and Technology Publisher, Shanghai 2002)
Journal of Corrosion and Protection, Vol.25 (2004), NO.7, pp.318-319.
Online since: December 2014
Authors: You Wei Sun, Ni Men
Table 1 Model Parameters
(kg/m3)
E
(GPa)
C
(MPa)
(°)
Bedrock
2500
7
0.25
1
35
Sliding mass
1800
0.005
0.3
0.05
25
The finite element method (FEM), the most widely used numerical analysis method, ensures its popularity for the abilities of handling multiple materials in a single model, accommodating readily non-linear constitutive behaviors and model complex boundary conditions, etc.
Fig. 1 Slope Finite Element Model In this paper, the slope model is calculated as a simple elastic-plastic material with Druker-Prager failure criterion.
Acknowledgements This work was financially supported by Colleges and universities basic scientific research special funds by central government, Young teacher funding program (ZY20120204) and National Natural Science Foundation of China (50978237).
References [1] Jianhai Zhang,Jingwei Fan,Jiangda He (1999), “Dynamic safety evaluation of slopes or dam foundation using rigid body spring element method,” Chinese Journal of Rock Mechanics and Engineering, 18(4):387-391.
(in Chinese) [2] Boyan Zhang,Houqun Chen,Xiuli Du, et al (2000), “Arch dam abutment aseismatic stability analysis,” Journal of Hydraulic Engineering, 31(11):55-59.
Fig. 1 Slope Finite Element Model In this paper, the slope model is calculated as a simple elastic-plastic material with Druker-Prager failure criterion.
Acknowledgements This work was financially supported by Colleges and universities basic scientific research special funds by central government, Young teacher funding program (ZY20120204) and National Natural Science Foundation of China (50978237).
References [1] Jianhai Zhang,Jingwei Fan,Jiangda He (1999), “Dynamic safety evaluation of slopes or dam foundation using rigid body spring element method,” Chinese Journal of Rock Mechanics and Engineering, 18(4):387-391.
(in Chinese) [2] Boyan Zhang,Houqun Chen,Xiuli Du, et al (2000), “Arch dam abutment aseismatic stability analysis,” Journal of Hydraulic Engineering, 31(11):55-59.
Online since: January 2012
Authors: You Li Ma
The material used here was medium carbon steel S45C (be equal to No.45 steel in China).The chemical composition and mechanical properties are shown in table 1 and table 2 individually.
Journal of Harbin Institute of Technology (New Series), 2005, 12 (4): 351—357
Journal of the Society of Materials Science.
Journal of Harbin Institute of Technology (New Series), 2005, 12 (4): 351—357
Journal of the Society of Materials Science.
Online since: August 2010
Authors: Tian Ran Ma, Hao Nan Liang, Zhong Chen Xiang, Rui Xue Liu, Tian Zhang, Xian Lei Shan
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.
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.
Online since: January 2013
Authors: Z. Mansurov, N.Sh. Akimbekov, Y.O. Doszhanov, Y.K. Ongarbaev, A.A. Zhubanova
Material and methods
In the present work are given results of laboratory experiments on investigation of biodegradation’s hydrocarbons of diesel fuels and individual hydrocarbons processes in soil before and after the bring into aerobic oiloxidative microorganisms by method of chromato-mass-spectrometry.
Summer brands of diesel fuels of joint stock company “PetroKazakhstan Oil Products”, Pavlodar petrochemical factory (PPCF) and Russian refinery “LukOil” were chosen as hydrocarbon raw materials.
News of the National Academy of Sciences RK, biological series, 6 (1995), p. 64-68
ACC Journal “Wissenschaftliche Abhandlungen”.
Eurasian Chemico-Technological Journal, 11 (2009), p. 69-75.
Summer brands of diesel fuels of joint stock company “PetroKazakhstan Oil Products”, Pavlodar petrochemical factory (PPCF) and Russian refinery “LukOil” were chosen as hydrocarbon raw materials.
News of the National Academy of Sciences RK, biological series, 6 (1995), p. 64-68
ACC Journal “Wissenschaftliche Abhandlungen”.
Eurasian Chemico-Technological Journal, 11 (2009), p. 69-75.
Online since: December 2013
Authors: Xin Gao, Hu Cui, Qi Long Han, Zuo Ming Zhu, Xuan Jun Wang, Ai Yu
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)
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)
Online since: September 2013
Authors: Yuan Ying Qiu, Gai Juan Wang, Yang Yang
Fig. 1 Top view of the cable net structure
This set of the cable net hung up on four masts, mainly consists of the main cables, assistant cables and tail lines, and this three kinds of material parameters are shown in Table 1.
Table 1 Three kinds of material parameters Main cable Assistant cable Tail line Elasticity modulus [GPa] 150 63.3 206 Permission tension [KN] 882 68.568 578 Diameter[mm] Φ34.92 Φ23.01 Φ32 Linear density[kg/m] 4.984 0.92 3.9 The establishment of finite element model of the cable net.
Acknowledgement This work was supported by the National Natural Science Foundation of China (No. 51175397).
Zhang, M.Ohsaki M: International Journal of Solids and Structures Vol. 43 (2005), p. 5658 [5] M.
Barnes: Form finding and analysis of tension structures by dynamic Relaxation, The City University London (1999) [6] Yongchang Song: Shape finding analysis of the cable net structure and membrane Structure, University of architecture in Harbin, Harbin (1992) [7] Bin Li, Yinghui Li and Xuegang Ying: Applied Mathematics and Mechanics Vol. 21 (2006), p. 707 [8] Zhaomin Wang: Vibration control the tower structure, Tongji University Press, Shanghai (1996) [9] Xiangting Zhang: The calculation of the wind pressure and wind vibration of the structure, Tongji University Press, Shanghai (1985) [10] Zhou Y, Kareem A and Gu M: Journal of Structural Engineering Vol. 126 (2000), p. 989
Table 1 Three kinds of material parameters Main cable Assistant cable Tail line Elasticity modulus [GPa] 150 63.3 206 Permission tension [KN] 882 68.568 578 Diameter[mm] Φ34.92 Φ23.01 Φ32 Linear density[kg/m] 4.984 0.92 3.9 The establishment of finite element model of the cable net.
Acknowledgement This work was supported by the National Natural Science Foundation of China (No. 51175397).
Zhang, M.Ohsaki M: International Journal of Solids and Structures Vol. 43 (2005), p. 5658 [5] M.
Barnes: Form finding and analysis of tension structures by dynamic Relaxation, The City University London (1999) [6] Yongchang Song: Shape finding analysis of the cable net structure and membrane Structure, University of architecture in Harbin, Harbin (1992) [7] Bin Li, Yinghui Li and Xuegang Ying: Applied Mathematics and Mechanics Vol. 21 (2006), p. 707 [8] Zhaomin Wang: Vibration control the tower structure, Tongji University Press, Shanghai (1996) [9] Xiangting Zhang: The calculation of the wind pressure and wind vibration of the structure, Tongji University Press, Shanghai (1985) [10] Zhou Y, Kareem A and Gu M: Journal of Structural Engineering Vol. 126 (2000), p. 989
Online since: December 2012
Authors: Yan Li, Xuan Zhang, Jian Ke Ren, Nan Zhao, Li Hui Zhou
In the oil field system, equipment corrosion , pipes clogging, non-metal materials aging causing by sulfide are common and the tendency of which has been on the acceleration[1,2,3].
In this experiment continuous flow is used to satisfy the material needs of bacteria growth.
Environmental Science, 2010,31(9): 2159-2165 [6] Miao Li, Ping Guo, et al.
Journal of Safety and Environment 2012,12(1):48-52
Journal of Harbin Institute of Technology, 2009,41(4):85-88
In this experiment continuous flow is used to satisfy the material needs of bacteria growth.
Environmental Science, 2010,31(9): 2159-2165 [6] Miao Li, Ping Guo, et al.
Journal of Safety and Environment 2012,12(1):48-52
Journal of Harbin Institute of Technology, 2009,41(4):85-88
Online since: June 2014
Authors: Mohd Rizal Lias, Mokhtar Awang, T.V.V.L.N. Rao, M. Fadhil
It consists of one pinion and one gear in full teeth with material SCM415 [6].
Khan, "The Stress Distribution of Gear Tooth Due to Axial Misalignment Condition," Journal of Applied Sciences, vol. 12, pp. 2404-2410, 2012
Hua, "Three-Dimensional Analyses of Spur Gear Bending Stresses by Global-Local Finite Element Technique," Applied Mechanics and Materials, vol. 365, pp. 309-313, 2013
Wiktor, "Comparative Analysis of Tooth-Root Strength Using ISO and AGMA Standards in Spur and Helical Gears With FEM-based Verification," Journal of Mechanical Design, vol. 128, pp. 1141-1158, 2005
Khan, "The Stress Distribution of Gear Tooth Due to Axial Misalignment Condition," Journal of Applied Sciences, vol. 12, pp. 2404-2410, 2012
Hua, "Three-Dimensional Analyses of Spur Gear Bending Stresses by Global-Local Finite Element Technique," Applied Mechanics and Materials, vol. 365, pp. 309-313, 2013
Wiktor, "Comparative Analysis of Tooth-Root Strength Using ISO and AGMA Standards in Spur and Helical Gears With FEM-based Verification," Journal of Mechanical Design, vol. 128, pp. 1141-1158, 2005
Online since: January 2011
Authors: Cheng Zhong Yang, Xian Da Xu
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
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