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Online since: September 2013
Authors: Hai Long Zhang, Yong Heng Chen, Jian Ying Qi, Bi Gui Lin, Jian De Fang
The world bank reported Chinese economy will triple to quadruple its materials consumption over the next 30 to 50 years[1].It means that china will meet a great challenge in disposal those wastes .
Materials and methods Sample collection and digestion Total suspended particulates(TSP) (N=6×3) were collected in 2011 from the surrounding of the Nanshan MSWI in Shenzhen(Fig.1), a mega-city located in southeast China.
[5] Chang M B, Huang C K, Wu H T, et al.Characteristics of heavy metals on particles with different sizes from municipal solid waste incineration[J].Journal of Hazardous Materials.2000. 79(3):229-239
[7] Luo X-S, Ding J, Xu B, et al.Incorporating bioaccessibility into human health risk assessments of heavy metals in urban park soils[J].Science of The Total Environment.2012. 424(0):88-96
Online since: December 2018
Authors: Sho Matsui, Chisato Wakabayashi, Shinji Kodama
Experimental Setup Materials.
The electrodes and specimens were assumed to be elastic perfect plastic materials.
Kariž, Overview of resistance spot welding control, Science and Technology of Welding and Joining. 13:3 (2008) 215-224
Simončič, Poor fit-up condition in resistance spot welding, Journal of Materials processing Technology. 230 (2016) 21-25 [3] M.
Online since: January 2013
Authors: Zhu Wu Zhang, Qin Yao, Ai Ping Wu, Ling Zhu Gong
Material of welding test plate (WTP) is 16MnDR, using manual electric arc welding, 600×380×58 mm size.
Constant stress beam (TJ-2; material is 1Cr13; Young’s modulus E = 216 GPa; Poisson’s ratio ν = 0.28) was used, with the loading weight up to 5 kg.
The electrolytic polishing machine (DP-2) can supply for line intergranular corrosion of metal materials with small DC power (output current: 2-20 A; output voltage: 0-18 V), has two work pattern: constant current and constant voltage.
Besides, in order to test the WRS of pressure vessel, the polishing ratio of more materials should be studied under different polishing current.
Sohn, Effects of Welding Residual Stresses on High Tensile Steel Plate Ultimate Strength: Nonlinear Finite Element Method Investigations, Journal of Offshore Mechanics and Arctic Engineering. 134 (2012) 1-6
Online since: July 2014
Authors: Ahmad Fitri Yusof, Rizalman Mamat, Amir Bin Aziz, W.N. Azeem
Materials and Method The emulsified fuel was produced using a mechanical stirrer machine which is commonly used in the industry for emulsion preparation [9].
[3] Maria, J.R., Abraham, C., Lourdes, R., Rubi, R., Angel, P., Transesterification of sunflower oil over zeolites using different metal loading: a case of leaching and agglomeration studies, Journal of Applied Catalysis A General. 346 (2008) 79–85
Adam Abdullah, Effect of Water Content and Tween 80 to the Stability of Emulsified Biodiesel, Applied Mechanics and Materials. 465-466 (2014) 191-195
[11] Ahmad Fitri Yusop, R.M., Mat Yasin, Mohd Hafizil, Abdul Adam Abdullah, Amir Aziz, Comparative Study of Particulate Matter (PM) Emissions in Diesel Engine Using Diesel-Methanol Blends, Applied Mechanics and Materials. 465 (2014) 1255-1261
[19] Kannan, T.K., et a, Thevetia peruviana biodiesel emulsion used as a fuel in a single cylinder diesel engine reduces NO and smoke, Thermal science. 15 (2011) 1185-1191.
Online since: November 2012
Authors: Chyung Ay, Cheng Chang Lien, Chung Yu Yeh
The cell surface induced charge by the non-uniform electric field under the size of the DEP force generated in this study expressed as [4] : (1) εm : Dielectric constant of the working solution (glucose) εp : Biological particles in dielectric constant σm : Conductivity of working solution (glucose) σp : Conductivity of biological particles τ : Dipole of the charge characteristic time (sec) Cultured cells biomedical material substrate is removed from the cell incubator, the medium removed by adding about 50 μl of solution ( 2% glucose solution), covered with Aluminum & plate, with a signal generator and power amplifier carried out cell-attached measurement of intensity.
Cells affixed to the material on the slender status from flat due to the voltage drive will gradually become round, and then off away from the substrate, then the proceeds of the drive voltage and then into the COMSOL software calculate the governing equations to be attached to power .
Conclusions This study is a set of automated systems to the mechanical force perpendicular to stimulate cell growth through the development of LabVIEW as a man - machine interface which can control the stepper motor to do the cycle of continuous movement , and various control parameters in the program include : frequency, the substrate should be variable , intermittent time , operation time , while the frequency of this vertical force to stimulate cell growth of automated machine movement limit the range between 0.4Hz ~ 2.4Hz substrate strain limits ranged between 0.5% to 9% , simple chondrocyte adhesion force test , the machine stretched cell adhesion force was significantly higher than the control group (non- stretch group) stretch of the cell adhesion force average for 6.25nN , without going through stretching the cell adhesion force average 1.06nN biological materials science , high strength of adhesion force will contribute to cell adhesion on polymer materials and growth proved stretch
Journal of Oral and Maxillofacial Surgery 63(4): 499-504 [3]Kanzaki.H, M.
Online since: January 2009
Authors: Jian Zhong Yang, Li Chao Pan, C.L. Kang, Gang Liu, Hui Juan Li, Z. You, D.H. Ren, Y.C. Tian
Tian 2, h 1 Department of Precision Instruments and Mechanology, Tsinghua University, Beijing, CHINA, 100084 1 State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing, CHINA, 100084 2 the National Synchrotron Radiation Laboratory, the University of Science and Technology of China, Hefei, Anhui, CHINA, 230029 a yang-jz@mail.tsinghua.edu.cn, bplc04@mails.tsinghua.edu.cn, cpicnic@mail.ustc.edu.cn, d liugang@ustc.edu.cn, elihuijuan03@mails.tsinghua.edu.cn, fyz-dpi@mail.tsinghua.edu.cn, g rendh@mail.tsinghua.edu.cn, hychtian@ustc.edu.cn Keywords: MEMS, Sensor, Magnetometer, Fluxgate, MEMSMag.
The theory exploited is based on the saturation of ferromagnetic materials.
Due to the nonlinear behaviors of magnetic material, harmonic components of the exciting frequency appear in the faradic signal.
After hard-curing the thick film, a thicker photoresist film was spun to enwrap the bottom conductor layer, about 20um thick, as the insulation material between magnetic core and coils.
Microeng., Vol. 12 (2003), p. 444-449 [12] JianzhongYang, Yiming Wang and Zheng You: 5th ESA Round Table on Micro/Nano Technologies for Space, ESA/ESTEC, Noordwijk, The Netherlands, 3-5 October, (2005) [13] JianzhongYang, Zheng You and Chunlei Kang: 6th ESA Round Table on Micro & Nano Technologies for Space Applications, ESA/ESTEC, Noordwijk, The Netherland, 8-12 October, (2007) [14] YANG Jianzhong, YOU Zhen and LIU Gang: 9th Annual Domestic Conference of China Society of Micro-Nano Technology, CSMNT, SHANGHAI, 20-22 Sept. (2007) [15] YANG Jianzhong, YOU Zhen and LIU Gang: Journal of Functional Materials and Devices, Vol. 14 (2008), No. 2, p.313-318
Online since: September 2011
Authors: Yun Huang, Ying Liu, Zhi Huang, Ya Jie Wang, Yue Zhang
Fig. 1 Grinding machine structure scheme Fig. 2 Grinding machine 3D model 3.Principle of grinding machine structural static analysis and finite element modeling 3.1Principle of grinding machine structural static and dynamic analysis The main components and the whole machine would generate certain deformation and stress inside the material by the various loads.
Through static analysis, each point’s data of the stress, strain, displacement and deformational energy could be calculated within machine, its basic point formula of static analysis is as follows[3]: (1) In Eq.s1, where is the element nodal force, is called the element stiffness matrix, is the stress vector at any point within the unit, is the elastic matrix related to unit material, t is the element thickness, A is the unit area
Solutions can be obtained through finite element calculation after defining material properties, meshing, exerting loads and boundary conditions[5], as shown in figure 3.
Huang, “The Development of Large High Efficient CNC Gantry Grinder for Vessel in Nuclear Power,” Key Engineering Materials vol. 416,pp. 421-425.July 2009
Gao, “Dynamic Finite Element Analysis of Heavy-duty Machine Tool,” Journal of Fuzhou University(Natural Science),Vol. 31 No. 1,pp. 69-72 Jan. 2003
Online since: May 2014
Authors: Hirohiko Takuda, Tsuyoshi Mayama, Takayuki Hama
Because this procedure uses the deformation characteristics in strong-textured materials, this procedure cannot be employed to cast Mg alloys.
Therefore, in the present study the material parameters for the cast Mg alloy sheet were determined as follows.
Table 1 Identified material parameters.
Andar, T.Kuwabara, D.Steglich, Material modeling of AZ31 Mg sheet considering variation of r-values and asymmetry of the yield locus, Mater.
Ohori, Grain refinement of AZ31 magnesium alloy sheets fabricated by rolled and heat treated twin roll cast plate, Journal of Japan Institute of Light Metals, 58 (2008), pp.22-26.
Online since: February 2007
Authors: Ming Bo Wang, Feng Lan Xu, Yu Bao Li, Gang Zhou, Lin Cheng
Materials and Methods The slurry of n-HA prepared by wet method [11] was ultrasonicated to be diffused uniformly in deionized water.
Biocompatibility of the materials was evaluated by implanting in muscle tissue of female rat.
Li: Journal of Materials Science Vol. 39 (2004), p. 5669 [4] G.
Online since: May 2007
Authors: Tong Xing, Yang Fu Jin, Gang Xiang Hu, W. Li, Bao Xiang Qiu
Introduction Titanium alloy is a difficult-to-cut material according to some reasons such as the high grinding temperature and cutting force during grinding process of the titanium alloy.
Because the coefficient of heat conductivity of the difficult-to-cut materials such as titanium alloy is minor, some flaws may be appeared on the workpiece surface [6].
Acknowledgments This project is supported by the Zhejiang science foundation (M503049), Zhejiang technical foundation (2004C21007), Zhejiang Education foundation (20030157) References [1] T.H.
Ren: Grinding on Difficult-to-machine Material (National Defence Industry Publications, China 1999)
Wang: Journal of Shandong University, Vol.33 (2003) No.5, pp.482.
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