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Silver nanoparticles are important materials that have been studied widely.
Silver nanoparticles prepared by using biological materials have the properties of a high surface area, smaller in size and high dispersion.
Materials and Methods Materials.The fresh fruit of M. charantia (Fig.1) was collected from local vegetable garden.
Sorensen, "Synthesis of spherical silver nanoparticles by digestive ripening, stabilization with various agents, and their 3-D and 2-D superlattice formation," Journal of colloid and interface science, 284(2005) 521-526
Sakthivel, "Coriander leaf mediated biosynthesis of gold nanoparticles," Materials Letters, 62(2008) 4588-4590

State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai, 201620, China 2.
College of material science and engineering, Donghua University, Shanghai, 201620, China 3.
Experiment Materials.
All of the materials were used without further purification.
Proceedings of 2005 International Conference on Advanced Fibers and Polymer Materials (Icafpm 2005), Vol 1 and 2 2005:708-712

Aluminum Car Wheel Molding Methods and Numerical Simulation of Forming Process Yinhu Qiao1,2, a , Chunyan Zhang 1,b,Jieping Chen 1,c 1Engineering College, Anhui Science and Technology University, Fengyang 233100, China 2Institute of CIMS, School of Mechanical and Automotive Engineering, Hefei University of Technology Hefei , 230009,China a qyh7926@163.com, b xiangyutianji@sina.com, c chen369100@163.com Keywords: Material; Filling; Solidification; Numerical Simulation; Extrusion Casting Molding Abstract.
Using Anycasting software to numerical simulating the process of car wheel molding filling and solidification, materials selecting and casting process characteristics and defects of the parts are studied, the causes of casting defects are analyzed.
This paper analyzes the materials selection of wheel and processing methods, Application AnyCasting2.4 software to numerical simulation the process of car wheel alloy casting filling and solidification, the filling and solidification process characteristics and defects of the parts are studied.
The materials selecting of vehicle Wheel Conventionally, two-piece steel wheels are manufactured by deep drawing of the disk, profile rolling of the rim, and a subsequent bolting or welding operation to join both parts.
Kim. journal of materials processing technology, Vol.201 (2008), p. 635-639 [8] Zhang Qiang, Huang Zhaohui and Tong Jianmin.

The high-pressure gas is found as the best alternative to TNT material, for reducing the deflection produced.
Urdea, Stress and vibration analysis of a drone, IOP Conference Series: Materials Science and Engineering. 1009 (2021) 012059
Song, Vibration reduction and firing accuracy improvement by natural frequency optimization of a machine gun system, Journal of Mechanical Science and Technology. 29 (2015) 3635-3643
Applied Mechanics and Materials. 574 (2014) 32–35
Journal of Mechanical Science and Technology. 31 (2017) 2663-2670

C-R-03 Can understand that mathematics can be applied to natural or social sciences.
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Test Methods Test materials.
Journal of Engineering Geology, 2006(05):709-714
Materials Science and Engineering, 2003(03): 460- 463
Journal of Geotechnical Engineering, 2000, 22(5): 549- 554
Journal of Geotechnical Engineering, 2001, 23(4): 472- 475

Materials and Method of Holding Research We used polyvinyl acetatcement PVAC and perchlorovinyl XV-161 paints.
Engineering Materials and Technology. 737 (2017) 179-183
Leguillon, Effect of residual stresses on the propagation of interface cracks between dissimilar brittle materials: contribution of two and three-dimensional analyses, European Journal of Mechanics, A/Solids. 35 (2012) 97-110
Ivaschenko, Evaluation of the destruction of the coating depending on its thickness, Research Journal of Applied Sciences. 11 (2016) 891-893
Evans, Delamination of multilayer thermal barrier coatings, Mechanics of Materials. 31(7) (1999) 431-447

Fig.1 The model of the bolt joints structure Fig.2 The finite element model Model Material and Boundary Conditions.
The relevant material constants are shown in Table 1 , and bolts are M6 × 25 standard steel bolts.
Acknowledgements This work was financially supported by the NSAF (10876034), National Science and technology major special Project (2011ZX04002-081) and Postgraduate Innovation Fund Project by Southwest University of Science and Technology (13ycjj44).
Beijing: Science Press, 2001(in chinese)
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