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Preparation of size and morphology controlled Gold Nanoparticles in Micro-emulsion and in Aqueous Yanbiao Zhang 1, a, Xiaohui Zhang 2,b, Hongzong Yin 3,c 1,2,3 College of Chemistry and Material Science, Shandong Agricultural University, Tai’an271018, China azhangyanbiaomc@126.com, bzhxiaohui16@163.com, chzyin@sdau.edu.cn (corresponding author) 3 Corresponding Author.
Materials and Reagents All reagents were analytical grade, and water was double distilled.
All materials and reagents were used without further purification.
Giersig, Formation of colloidal silver nanoparticles: capping action of citrate, The Journal of Physical Chemistry B 103 (1999) 9533-9539
Capek, Preparation of metal nanoparticles in water-in-oil (w/o) microemulsions, Advances in Colloid and Interface Science 110 (2004) 49-74

The Orderly and Direction Study of Grinding Wheel Grits Based on Geomorphologic Feature Xi Jing Cao1, a Ke Peng Zhang1, b Ming Zhang2 1 Shaanxi University of Science and Technology, Weiyang District, Xi’an, Shaanxi Province, China 2 The fifth Grinding wheel Factory, LinTong District, Xi’an, Shaanxi Province, China bnetwodeshijie@126.com Keywords: Grinding Wheel Topography, Grits Distribution, Composite Electroplating, CNC Grinding Abstract.
The grinding efficiency and service life of grinding wheel rather closely related to the materials and the distribution of grits on the grinding wheel surface.
The material of the grinding wheel should have high hardness, a certain toughness, mechanical strength, thermal stability, chemical stability and so on.
CBN is a kinds of hardness second only to diamond synthetic super hard materials, micro hardness HV 7500 to 9000, having a particularly good thermal and chemical stability, withstanding 1900℃ high temperature.
Xu: Journal of Applied Sciences (In Chinese), Vol 35 (2001) No. 1, p.48-52

In this paper, the reserve factor for the material strength is defined as . , refer to the intensity parameter after the weakening of strength.
When working out the reserve factor of material strength, we have (5) (5) is the constraint condition of the yielding equation on the structural surface .
Numerical example Fig.2 The rock slope of wedge Fig.3 Sliding block of wedge The calculation model and the material parameter.
Acknowledgements It is a project supported by National Natural Science Foundation of China (NSFC program number: 51009074).
[5]Ren Qingwen, Yu Tiantang: Chinese Journal of Rock Mechanics and Engineering, Vol.20-1, (2001), p.20-24, in Chinese

That way, analysis-related data, such as material data or boundary conditions, which can be assigned to the corresponding features and later used to create a simulation model for the two shot molding process.
These attributes can consist of material, constraints, boundary conditions, type of analysis and process parameters like the temperature of the mold and the cast, gate location or injection period.
The term two shot molding designates the molding of two plastic materials on the top of each other [2].
Acknowledgment The research presented in this paper is partially supported by National Natural Science Foundation of China (50975241) and the Natural Science Foundation of Fujian Province (2009J01266).
International Journal of Computer Integrated Manufacturing, 18 (7), pp.550-560 (2005)

Normally the hollow sucker rod’s material is 35CrMo.
Material parameters are shown in table 2.
Table 2 Material physical parameters Materials grades elastic ratio Poisson's ratio Density Tensile strength Yield strength 35CrMo 2.13E+5 0.286 7870 980 835 Mises Stress Analysis Under the three conditions, Mises stress distribution of two kinds of the joint is basically similar.
Acknowledgements This work was financially supported by the Nature Science Foundation of China (51004083) and the China Postdoctoral Science Foundation(20100481384).
Analyses of the fatigue crack propagation process and stress ratio effects using the two parameter method .International Journal of Fatigue, 2005, Volume 27 (Issues 10-12) : 1314-1318

With the awareness of environment, ecology, and pollution control increasing, the application of biopolymers on textile materials is gaining popularity all over the world.
Experimental and methods Materials.
Erra: Journal of the Society of Dyers and Colourists.Vol.116(2000), p.62 [10] J.
Milligan,“Wool Science.
The Chemical Reactivity of the Wool Fiber”, p.89-107,Science Press, Marrickville, 1981

A cylindrical core of material containing the reference hole is trepanned free of the rest of the component using a electric discharge machine (EDM).
These mainly relate to the uncertainty due to calibration of the airprobe and uncertainty due to material constants.
Smith, "Measurement of through-thickness stresses using small holes," Journal of Strain Analysis, vol. 37, pp. 125-139, 2002
Taylor, "An introduction to Error Analysis," University Science Books, vol. second edition 1997
Wimpory, "Residual stress and microstructural variations in thick aluminium alloy forgings", Materials Science Forum Vols. 571-572 (2008) pp 45-50.

First-principles Calculation of Carbides in Niobium Microalloyed Medium and High Carbon Steels Dong Wanga, Jianchun Caob, Xiaolong Zhouc, Dongwei Zhaod, Lei Denge School of Material Science and Engineering, Kunming University of Science & Technology, Kunming Yunnan, 650093, China awd6543@163.com, bnmcjc@163.com, ckmzxlong@163.com, dzdw181@163.com, esxdenglei@163.com Keywords: Carbide, Niobium steel, First-principle, binding energy, formation energy, density of state Abstract: The binding energies, formation energies and DOS (density of state) of several carbides (Fe3C, Fe2C, Fe5C2, NbC) in Nb micro-alloyed steels are investigated using the first-principle pseudo potential plane-wave method.
Calculation Methods and Basic Parameters Calculation work is achieved by CASTEP (Cambridge Serial Total Energy Package) module in MS (Material Studio) software.
Gaochao Wang: Material & heat treatment technology, Val.38 (2009), p.42, in chinese [6] Xiang Li, Yonglin Kang, Kejin Gu: Journal of iron and Steel Research, Val.16 (2004), p44, in chinese [7] Peidong Ren: Gansu Metallurgy, Val.30 (2008),p.8, in chinese [8] Jones R O, Gunnarsson O.
Reviews of Modem Physics, Val.61 (1989), p689 [9] Langreth D C, Perderw J P: Physical Review B, Val.21 (1980), p5469 [10] Dianwu Zhou: Rare metal materials and engineering, Val.6 (2006) p.871, in chinese [11] Y.J.Shi, Y.L.Du, G.Chen: Physics Letters A, Val.368 (2007), p495 [12] L Z Peng, Y F Wang,Gray M F: Physica B: Val.403 (2008) p2344-2348

Influence of processing parameters of warm compaction on green density of molybdenum powder and compact defect analysis Jian Li1, a, Binting Yang1，b 1 College of Material Science and Engineering, Northwestern Polytechnical University, 127 Youyi Xilu, Xi’an 710072, China a ljnpu@126.com, bybt2006abc@163.com Keywords: molybdenum powder; warm compaction; processing parameter; density; defect Abstract.
When the mo powder approximate to density materials, the energy required to press the powder increasing significantly.
References [1] P.F.Feng and J.Sun: China Molybdenum Industry Vol.34(2010),p.39-45 [2] T.Zhang,B.J.Zhao etal: Journal of Matericals Engineering .Vol.5(2009),p.68-72 [3] S.S.M.
[6] S.J.Guo,R.Chi etal:Materials Science and Engineering of Powder Metallurgy Vol.11(2006), p.24-27

Sintering, along with pelletizing, is one of the most effective ways to prepare iron ore materials for blast furnace smelting.
Baykov, Russian Academy of Sciences, 1995
Xu, Softening-melting behavior of mixed burden based on low-magnesium sinter and fluxed pellets, International Journal of Minerals, Metallurgy and Materials, 28 (2021), 621-628
Chesnokov, Methodical basis of investigation of influence of the iron ore materials and coke metallurgical characteristics on the blast furnace smelting efficiency, Advanced Materials Research, 602-604 (2013), 365-375
Prikhodko, The role of chemical composition of iron ore materials in the formation of their metallurgical properties, Preparation of raw materials for metallurgical conversion and pig iron production, Chermetinformatsiya, Moscow, 5 (1987), 1-25