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Online since: August 2013
Authors: De Fa Zhang, Yi Cong Gao
Automatic stop and cut bottom, side line), with cutter sewing machine; from the use of, it has a sewing tents, seat cushions, bags, belts and other thick material type, special purpose machine body, thin seam material and material models. 2 The industrial sewing machine structure and characteristics of an AC servo system Industrial sewing machine servo system working principle is through the pedal board to control the motor running, the drive and driven by a belt shaft, crank slide mechanism, make the thread-taking-up mechanism and feeding mechanism, complete the sewing process.
The power conversion efficiency of the system and large torque output enable sewing machine with short-term overload capacity of 3 - 4 times, can penetrate the 4 layers of 0.8mm leather, thin material, thick material is good, it is a multifunctional. 3 Simulation design and development three, industrial sewing machine motion system To meet the servo motor profile and mechanism is connected, the cam follower mechanism, groove follower or a gear pair connection request, simulation of mechanism motion.
Acknowledgments: This work was supported by the Science and Technology Project of Zhejiang Province (approval no. 2012C21045).
Journal of electric machines and control, 2003 02
Huazhong University of Science and Technology, 2011.
Online since: August 2010
Authors: Sheng Li Wang, Hui Lai Mu, Zhen Xia Li, Wen Zhong Xu, Xia Xiang
When the concentration reaches a certain value, it adsorbed the surface of the material, impeded the chemical reaction, and then delayed for polishing.
The higher the concentration of surfactant, the more inadequate the slurry contacts with the material, and the lower the removal rate.
Acknowledgements This work supported by the Natural Science Foundation of Hebei Province, China ( No.
E2010000077)and Science and Research Project for Education Office of Hebei Province, China (No.2007429).
Chinese Journal of Semiconductors. 12(2004), p.1726-1729 [2] Huang Bo: Solid Material and it's Applications.
Online since: February 2006
Authors: Lin Geng, Hong Mei Wei, Xue Xi Zhang
Zhang 1,c 1 School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P.R.
The objective of this paper is to investigate the solidification processing of SiCw/Al-18Si composite, concentrating on the use of SEM and TEM to investigate the nucleation of Si phase, and the use of DSC to compare the processing conditions to characterize the resulting material microstructure.
Surappa: Journal of Materials Processing Technology Vol. 63 (1997), p. 325-333 [4] C.R.
Cantor: Proceedings: Mathematical, Physical and Engineering Science Vol. 452 (1996), p. 2141-2160 Fig.5 SEM photographs of Al-Si eutectic in the SiCw/Al-18Si composites, (a) C1, (b) C2 a) E) Fig.4 SEM photographs of primary Si in the SiCw/Al-18Si composites, (a) C1, (b) C2 a) E)
Online since: October 2011
Authors: Li Mei Wang, Jun Bo Liu, Bao Xin Huang
Microstructure and Performance of plasma cladding multi-lap-Joint coating has been studied in this paper. 2 Experimental Material and Methord 2.1 Experimental Equipment and Material Multiple tracks experiment of plasma cladding was DFR-II plasma cladding equipment, The plasma cladding process parameters were: Output power: 15×103W, beam diameter: 10mm, scanning speed: 500mm/min, lap-joint proportion is 50%.Low-carbon steel (Q235A) was used as a substrate material, the dimensions of the substrate were 100mm×50mm×10mm.
The Plasma Jet is high-temperature and high energy Jet, it is easy for the material be burned in the sustain high-temperature .
Acknowledgements Supported by National Science Foundation of China (No. 51004077 ) and Scientific and Technological Project of Shandong Province(No. 2007GG30003003) References: [1] J.B.Liu, J.H.Huang, L.M.Wang.
Science, Vol. 200 (2002), p. 203 [3] M.
Laser Journal, Vol. 28-5(2006), p. 64 [5] J.
Online since: May 2015
Authors: Abdul Hakim Abdullah, Nik Roselina Nik Roseley, Mohamad Syafiq Abdul Khadir
Natural fibres reinforced in polymer composite materials can provide significant function and as well sustainable benefits, ranging from acceptable mechanical strength, cost saving features and biodegradable composites.
Tan δ is a measurement of the damping of the material meanwhile The Storage Modulus is the intimation of the stiffness of the material.
The Tan Delta often relates to the damping characterises, a measure of the energy dissipation of a material.
Journal of Applied Polymer Science, 107 (2007),4045-4050
Composites Science and Technology, 65 (2005)1077-1087.
Online since: April 2007
Authors: Chu De Feng, Shi Ming Huang, Li Dong Chen, Xiao Wei Wen
Introduction Lead magnesium niobate-lead titanate (Pb(Mg1/3Nb2/3)O3-PbTiO3) materials exhibit unusual high dielectric permittivity, low dielectric loss and high strain.
It is a very promising material for the applications of multilayer ceramic capacitors as well as ceramic electrostrictive actuators and electro-mechanical transducers [1,2].
In this paper, we investigated the influence of co-doping and incorporating layered Perovskite ferroelectric materials SBN on structure, dielectric and field-stability properties of PMNT ceramics.
Acknowledgements This work was supported by the Ministry of Sciences and Technology of China through 973-project under Grant No. 2002CB613307.
Uchino: Journal of Electroceramics Vol. 6(1) (2001), pp. 13
Online since: October 2012
Authors: Xiao Chen Wang, Fei He, An Rui He, Quan Yang, You Zhao Sun
Based on the material mechanics, the inner bending moment calculated by integration of the inner stress is equal and opposite to the external bending moment shown in Eq. 1
In the simulation model, the material properties of pinch rolls and leveling rolls were set at rigid-body, and the strip was set at the bilinear kinematic hardening.
The material properties of strip are listed in Table 2.
Table 5 The size and material properties of strip products NO.
Huang: Journal of Plasticity Engineering, Vol. 17 (2010) No. 6, p.116.
Online since: October 2013
Authors: Shi Qi Su, Wen Quan Wang
Numerical Simulation of Two-dimensional Flows Using the Feedback Force Immersed Boundary Method Shiqi Su1,a and Wenquan Wang1,b 1Faculty of Civil and Architectural Engineering, Kunming University of Science and Technology, Kunming, 650224, China asushiqi99@126.com, bwwqquan@126.com Keywords: immersed boundary method, feedback force, Navier-Stokes equation, flow over two tandem cylinders Abstract.
Smooth function can solve the equations ( 3) and ( 4). 2.2 Solution of solid force density Solving solid force density in Eq.(3), according to different structural materials to build solid constitutive equation.
Structural materials can be divided into the elastic body and the rigid body, for the elastic body, using super-elastic model, solved by finite element method in the Lagrange coordinate system.
Acknowledgments The authors thank the National Natural Science Foundation of China (NSFC) [Grant no. 11002063 and 11262008] for financial support of this research.
An Immersed Boundary Method with Formal Second-Order Accuracy and Reduced Numerical Viscosity[J].Journal of Computational Physics 160,705-719(2000)
Online since: October 2014
Authors: Ling Bo Kong, Dong Mei Liu, Hong Wu Qin
Besides, while material destruction acoustic waves (AE signals) undergo serious changes when they spread along the survey item.
ACKNOWLEDGEMENTS The work was supported by Jilin Provincial Science and Technology Department (No. 20140414025GH).
The research activities have been funded by Changchun Science and Technology (No. 13GH15).
Journal of Materials Processing Technology. 2001,109:242~247
Time-frequency analysis of impact sound of composite materials.
Online since: February 2013
Authors: Mei Lan, Jia Yuan Zhang, Wei Wei Zhao, Meng Dong, Yong Zhang
Materials and methods.Take carbon sample of 10 ml into a 100 ml-cone bottle, clean surface several times with 0.85% of saline solution to wash away organic matter adsorbed in biofilm surface and impurities loose attachment in order to prevent the measuring error.
This shows VAS value not only include active microbes but also include the inert materials such as polymer of active cells extracellular excretory and some organisms adsorbed by biological membrane.
To ensure the biological activity we must rewash reactor regularly which is useful to remove the attached inert material and aging biofilm, and to promote biofilm adsorbing nutrition and nutrient; at the same time can clean activated carbon surface and internal microporous approach, and recovery the activated carbon adsorption capacity so as to improve the biological activity. 3.
Acknowledgements The financial support of the Natural Science Foundation of Hebei Province (E2010001036) and Education Department of Hebei Province Science and Technology Project (Z2008416) are gratefully acknowledged. 
Abell: British Journal of Nutrition Vol. 100 (2008), p. 138 [4] David Stensel, Gang Xin: Water environment research Vol.80( 2008), p. 2228 [5] Timothy Ford,Jenny Jay: Environmental Health Perspectives Vol. 113 (2005), p. 187 [6] B.A.Knapp, J.Seeber: Bulletin of Entomlogical Research Vol.98(2008), p. 271 [7] Makoto Ikenaga · Rafael Guevara · Amanda L.Dean · Cristina Pisani · Joseph N.