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Online since: June 2013
Authors: Ling Lin Li, Jin Peng Tang
Calculate manufacturing demand for the raw materials required, and in accordance with the demand of the raw material procurement.
Acknowledgements The research was supported by Science and technology projects in Hunan Province (Project No. 2011FJ4132), and Science and technology projects in Hunan Province (Project No. 2011Fj9782), Scientific Research Foundations of Hunan Provincial Education Department (Project No. 12C1076), Scientific Research Foundations of Hunan Provincial Education Department (Project No. 11C0496) References [1] Joel Colloc, Christine Sybord.
Journal of Cleaner Production,Vol:12,工ss:8-10,2004:1059-1071 [3] Obyung Kwon, Kun Chang Lee.
Online since: June 2011
Authors: Yong Bin Zhao, Lan Wang, Tong Rang Fan
A Discrete Data Fitting Models fusing Genetic Algorithm Tongrang Fan1,a, Yongbin Zhao 1,b and Lan Wang 1,c 1 School of Information Science and Technology, Shijiazhuang Tiedao University, China afantr2009@126.com, bzhaoyb1101@yahoo.com.cn, cwanglan1130@126.com Keywords: discrete data; data fitting; Least Median of Squares Regression; Genetic Algorithm Abstract.
Introduction Performance curve with discrete date fitting is important in test data processing of many research fields, such as electromotor, sensor, materials and so on.
It's used to design and improve products, reflect product design, related material quality and processing technology.
Acknowledgements This work is supported by Hebei Natural Science Foundation (No F2009000927) and The Project of the Network Platform for Measuring the Motor Parameters (No 08108141A).
Liu: Journal of Biomedical Engineering, 2006, 23(4) pp. 873-877
Online since: October 2004
Authors: Ruo Yu Huang, Chang Chun Wu
The piezoelectric tensor depends on the magnitude of the remanent polarisation linearly, that is ( ) 0R satP=d P d (8) Where RR R = ⋅ P P P , satP is the saturation value of remanent polarisation, 0d is the dielectric tensor when the material attains polarisation saturation.
The material PLZT is subjected to cycled applied electric field [ ]0.8,0.8 MV/m E ∈ − .
Acknowledgements The support of National Natural Sciences Foundation of China No.10172078 is gratefully acknowledged.
Journal of them Mechanics and Physics of Solids, 2001, 49:785-811
International J Engineering Science, 2002, 40(14):1553-1577
Online since: August 2011
Authors: Han Xin Chen, Xu Bing Chen, Yang Song
Introduction Oil is the strategic energy and basic raw material of modern industrial society.
According to their base materials, PDC drill bits are classified as matrix bodies and steel bodies.
Acknowledgements The work is supported by National Natural Science Foundation of China under Grant No. 50835004 and 50905131, and the Hubei NSF under Grant No. 2009CDB251.
Science in China Series E.
Journal of Mechanical Engineering.
Online since: February 2013
Authors: Li Ping Qiu, Kai Huang, Jin Feng Meng, Dong Wang
Material and Methods The all experiments were performed by using septic tank wastewater which adjusted KH2PO4, MgCl2, NH4Cl according to the desired reactants molar ratio.
Acknowledgments This study was partly supported by National Natural Science Foundation of China (50978121, 51278225) and Shandong Provincial Natural Science Foundation (ZR2011EEM018).
Journal of Hazardous Materials. vol. 176, pp. 1083-1088, Apr. 2010
Online since: September 2017
Authors: Xue Mei Ding, Li Min Zou, Meng Jiao Zhou, Bao Kai Wang
Moreover, since the liquid crystal material driven down, low-power, easy miniaturization [6], etc., this method has great potential for development.
Acknowledgment This work was supported by the Natural Science Foundation of Heilongjiang Province under Grant E201423 and National Natural Science Foundation of China under Grant 51575142.
Key Engineering Materials, 2008, 381: 287-290
Journal of Applied Optics, 2010, 3: 012
Online since: August 2012
Authors: Mutellip Ahmat, Jing Luo, Qiang Gao, Li Chao Ren
Static surface Pressure inlet Pressure outlet Dynamic surface Periodic boundary Periodic boundary Fig. 1 The numerical model and boundary conditions of the fluid-film The meshed model of the fluid-film was led from the GAMBIT software into the FLUENT software.The materials and the boundary conditions of the calculation within the region of the numerical model.Opening the RNGk-epsilon turbulent model and non-standard wall functions[6].The pressure-velocity coupling equation and the second-order upwind scheme were used to solve the numerical model.
The properties and boundary conditions of the fluid -film was shown in Table 1: Table.1 The material properties and boundary conditions Spindle Speed Rpm 1500 Density kg/m 886 Pressure Inlet Mpa 4 Cp j/kg-k 1700 Pressure Outlet Mpa 0.1 Thermal Conductivity W/m-K 0.12 Medium Temperature ℃ 120 Viscosity kg/m-s 0.12 After calculation results of the iteration was obtained, the iteration result of the fluid-film was exported from Fluent into the post-processing software Tecplot.
Acknowledgements This paper is supported by the National Natural Science Foundation of China(51165043) and the University Scientific Research Projects Fund of Xinjiang Autonomous Region(XJEDU2010I15).
Science and Culture (Publishing House, China 2002).
Luan, Khonsari M.M: Journal of Tribology, Vol.128 (2006), pp.559-565.
Online since: February 2011
Authors: Jun Wang, Ying Gang Zhou, Hua Yan
An Electrical Capacitance Tomography System with Double Measurement Channels Hua Yana, Jun Wangb and Yinggang Zhouc School of Information Science and Engineering, Shenyang University of Technology Shenyang 110870, China ayanhua_01@163.com, b309362683@qq.com, c66952508@qq.com Keywords: electrical capacitance tomography; switch coupling capacitance; soft compensation; virtual instrument; double measurement channels Abstract.
Introduction Electrical Capacitance Tomography (ECT) [1-2] is a technique for measuring the permittivity distribution of a mixture of two dielectric materials inside a closed vessel, from which the concentration distribution can be found.
Data acquisition system measures the changes in these capacitances caused by variations in the permittivity of the material inside the vessel.
Acknowledgment This work is supported by National Natural Science Foundation of China (grant no. 61071141) and Liaoning Creative Team Project (grant no. 2007T129).
Zhou, and et al: Chinese Journal of Scientific Instrument, Vol.31 (2010) p. 132 [5] M.
Online since: August 2013
Authors: Yao Zong Xi, Jing Ling Bao, Juan Wen, Yi Chen Zhao
Project Name Capacity Leading projects 1 1,4- Butanediol 3 1 China oil refinery 1300 2 Ethanolamine 4 2 Large oil refinery 1500 3 Glycol ethers 5 3 Large-scale ethylene 120 4 Hydrogen peroxide 20 4 The MTO / steam cracker ethylene 80 5 1,3- Propylene glycol 1.0 5 Aromatics 150 6 Polyisobutylene 1 Ethylene series 7 Methacrylate 9 1 Glycol 80 8 1,2- Propylene glycol 10 2 PVC 30 Engineering plastics and new materials 3 Linear low-density polyethylene 30 1 Isoprene rubber 10 4 EVA 25 2 Poly propylene glycol terephthalate 2 5 High density polyethylene 30 3 Ethylene propylene rubber 8 6 Polystyrene 30 4 Polymethyl methacrylate 9 7 Styrene / propylene oxide 84/40 5 Phenolic resin 5 8 High density polyethylene 30 6 SBS 20 Propylene Series 7 Butyl rubber 10 1 Phenol / acetone 35 8 Polybutylene terephthalate 6 2 Bisphenol A 20 9 Polycarbonate 26 3 Phenol / acetone 35 10 MDI 48 4 Bisphenol 20 11 Polyether 26 5 Propylene oxide 20 Aromatic series 6 Polypropylene 60 1 PTA 480 7 Acrylonitrile
26 2 Polyester 40 Carbon series 3 Copolyester 20 1 Methyl ethyl ketone 10 4 Low melting point polyester 5 2 MTBE 6.5 Other projects 3 Maleic anhydride 6 1 Ionic membrane caustic soda 30 Fine Chemicals Series 2 Residual oil processing and utilization 120 Hazardous waste incineration heat value is about 6500KJ/kg and recycled material content is about 30%.
[2] Z.J.Cui and F.Xie: Solid waste recycling economy - management and planning method and practice,Bei Jing Science Publising (2005), in press (in Chinese)
[3] Saaty.T.L:Services Sciences.
[4] Lawrence C.Leung,Dong Cao:European Journal of Operational Research.Vol.132(2001),p.39
Online since: February 2014
Authors: Qing Feng Zhang
Introduction Continue to expand the battlefield and the future progress of modern science and technology, the world is gradually pushed the aviation and aerospace vehicle moving into one organic combination of direction.
Flow thermal environment of aerodynamic heating and flight speed, altitude, the viscous boundary layer state, is closely related with the aircraft itself complex shape, internal structure, material properties, structural properties.
Aerospace plane flight speed above 10 times the speed of sound, the plane head in front of the gas after the shock compression, block temperature can reach more than 5000K, while the existing metallic thermal protection materials of the highest durable temperature is about 1400K, temperature of the aluminum alloy structure not aircraft more than 450K, the use of lower temperature sensor skin below the.
The domestic research status of aerospace plane is roughly as follows: expanding the battlefield and the future progress of modern science and technology, the world is gradually pushed the aviation and aerospace vehicle moving into one organic combination of direction.
New York: Grawhill book Company, 1998 [3] Murray A l, Lewis C H, Hypersonic three dimensional viscous shock-layer flows over blunt bodies, AIAA, Journal, 1978, 16(12):1279-1286 [4] Helliwell W S, Dickinson R P, Lubard S C, Viscous flow over arbitrary geometries at high angle of attack, AIAA-80-0064 [5] Shanks S P, Sprinivasan G R, Nicolet W E, AFWAL Parabolized navier-stokes code: formalization and user’s manual, 1982, AFWAL-TR-3234 [6] Gnoffo P A, an Upwind-biased point-implicit relaxation algorithm for viscous, Compressible Perfect Gas Flows, NASA, feb 1990,TP-2953 [7] Aerosoft, GASP version 3, the general aerodynamic simulation program, computational flow analysis software for the scientist and engineer, User’s Manual, Aerosoft Inc, Blacksburg, 1996 May, VA,
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