Search results

The aim of this work was to synthesize Ag-TiO2 nanocomposites and to characterize them in order to contribute to the understanding of the preparation of nanocomposite materials.
Introduction The nanomaterials obtained large importance in the last decades because these materials have large fraction of surface atoms, high surface energy, spatial confinement and reduced imperfections, which do not found in the corresponding bulk materials.
Mostly, the reactions utilize silver nitrate (AgNO3) and titanium alkoxides as the starting material.
Suppi et al: Journal of Hazardous Materials Vol 286 (2015), p. 75
Šileikaitė et al: Materials Science (Medžiagotyra) Vol. 15 (2009), p. 21

The technological optimization of closed multiple-ram forging for draw rod Chundong Zhu1, a ,Tailiang Dai2, b , Hui Wang3, c 1,2,3 School of Material Science and Engineering, Wuhan University of Technology, Wuhan, China a email:zcdzcd6252@sina.com, b email:lianghappyhoho@sina.com, cemail:saiwaiguxue@163.com Key words: draw rod; closed multiple-ram forging; plunger chip; optimization Abstract Draw rod is one of the main mechanical parts of vehicle steering system，which is required extremely high quality.
As can be seen from Fig. 8, in Plan (a) there are obvious folding areas at the channel of draw rod; in Plan (b) the end of channel of the draw rod is not fully filled with metal materials and the surface of the end cylinder is quite rough; in Plan (c) the forge piece is excellent.
In the whole process, the metal materials flows in disorder; consequently, there are some defects in the forge pieces.
Journal of materials processing technology, 2001, 111:2～9
Journal of materials processing technology, 2004, 150: 56～61

Introduction Non-degradable metals, such as Titanium (Ti) and its alloys, are commonly used materials for orthopedic fixation devices [1].
Materials and Methods Mg Substrate Preparation and Characterization.
Magnesium alloys as implant materials--principles of property design for Mg-RE alloys.
Journal of Biomedical Materials Research Part A. 2006;77A:534-41
The development of binary Mg-Ca alloys for use as biodegradable materials within bone.

Specifically in materials science, polycrystalline microstructures are commonly represented by using Voronoi diagram because of its shape, distribution and irregularity [8].
Eckstein, Microforming-from basic research to its realization, Journal of Materials Processing Technology. 125(2002) 35-44
Liu, Modeling of grain size effect on micro deformation behavior in micro-forming of pure copper, Materials Science and Engineering: A. 527-24(2010) 6638-6648
Manabe, Modelling of size effects in microforming process with consideration of grained heterogeneity, Computational Materials Science. 77(2013) 44-52
Cizelj, Automatic parallel generation of finite element meshes for complex spatial structures, Computational Materials Science. 50-5(2011) 1606-1618.

According to the experimental data, this paper measured by the node of ultimate bearing capacity, getting rid of the stress of abdomen and stirrup based on actual strength of materials and theoretical formula calculation, after linear regression, gains.
Acknowledgement This paper sponsored by National Natural Science Foundation of China (Grant No. 50868001).
Compositing structures of steel and concrete .( Science Press, China 2001) [3] Xingu Zhong, Xiaojuan Shu:Civil engineering journal, Vol.35(2002),P.73-78.
(in Chinese) [5] Zhiheng Deng, Hegong Chen, Shaoming Lin:Journal of Guangxi University (Natural science edition), Vol.35(2010) ,P.12-16(in Chinese) [6] Liu Wei.
[10] ASCE Guidelines:Journal of Structural Engineering,Vol.120(1994),P.2330-2357.

But by the 90 s, Russia has been able to take advantage of Hydro forming technology to shape lower plastic materials such as titanium alloy and high-strength steel [2].
On other media of research, Henan Science and Technology University had "elastic-plastic force transmission media analysis of three pipes under axial compression expansion technology" [4],Polyurethane rubber-elastic materials, including wax, graphite mixed plastic materials transfer medium, and respectively started technology testing in copper T-shaped tube and hard aluminum T-shaped tube subjected to axial compression bulging, analysis the effects of different transfer mediums on bulge forming process, but the results of their experiment is elasticity of polyurethane rubber material used for bulging falls short of height to diameter ratio greater than 1 of support pipes.
Henan: Henan University of science and technology, 2004.
In Chinese [4] Mustafa Ahmetoglu,Jiang Hua,Srikanth Kulukuru,Taylan Altan.Hydroforming of Sheet Metal Using a Viscous Pressure Medium.Journal of Materials Processing Technology,2004,146:97～107 [5] Mingwang Fu, Shiqiang Lu, Maoheng Huang.
Journal of plastic engineering, 1999,L6 (3): 46~48.

Introduction The similarity of synthetic hydroxyapatite (Ca10(PO4)6(OH)2, HA) to bone mineral has led to extensive use of HA in materials science and medical fields, especially as a bone substitute material because of its high biocompatibility and osteo-conductivity [1-3].
The limits for its validity differ for different materials.
Lin: Materials Letters Vol. 57 (2002), p. 858 [4] Y.
Fukumori: Materials Science and Engineering B Vol. 148 (2008), p. 162 [5] S.
Rey: Materials Research Bulletin, Vol. 34(1999), p.2279 [13] K.

ACI materials Journal. 102(2005) 49-58
Materials Science and Engineering: A. 123(1990)1-11
Materials & Design. 30(2009)1075-1084
Journal of Aeronautical Materials. 29(2009)88-93
Journal of Materials in Civil Engineering. 22(2009)1-9.

Studies on sprinklers arrangement in sprinkler systems Fanlin Cui1, a, Fang Qu2,b, Yongyi Cui3,c,Lei Mai4,d 1College of Sciences,Northeastern University,Shenyang, China 2,3,4 College of Safety Engineering, Shenyang Aerospace University,Shenyang, China a 441037325@qq.com, b yjhhlj@163.com, c cyybxl@126.com, d 1968136779@qq.com Keywords-Sprinkler systems, Water spray intensity, Sprinklers arrangement, fire pool Abstract—To improve the fire suppressing efficiency and reliability of the sprinkler systems, in this paper we analysis and discuss a problem about sprinklers arrangement.
Due to the influence on fire extinguishing efficiency and reliability which cause by arrangement and selection of sprinklers, many reference materials have carried on deep discussions and propose their own views on sprinklers arrangement [1-8].
REFERENCES [1]Du Kun: Study on Optimizing the Layout of Nozzle in Sprinkler System, Master degree thesis in Chongqing University, China (2010) (In Chinese) [2]Deng Ke-yang: The numerical simulation of the spatial distribution of water spray intensity for ZST-15 sprinklers, journal of China water & wastewater, supplement of Vol.33 (2007) (In Chinese) [3]XU Xiao-ling, YAO Bin, WANG Han-jie and LI Juan: Water density probability distribution and fire control capability of sprinkler system, journal of FIRE SAFETY SCIENCE,Vol.18, No.3 (2009) (In Chinese) [4]Huang Zi-qin, Wu Jiu-jiu: Proper setting of sprayer in auto-spraying fire-extinguishing system, journal of China water & wastewater engineering, Vol.15, No.7 (1999) (In Chinese) [5]Wang Jia-hai: Discussion on Design of the sprinkler systems, journal of China water & wastewater, Vol.20 (2004) (In Chinese) [6]Yang Qi: On the maximum space of nozzles in automatic sprinkling system, journal of China water & wastewater, Vol.23, No.10 (1997
) (In Chinese) [7]Su Wen-long: Studies on the Building Fire Automatic Sprinkler System and Hydraulic Calculation, Master degree thesis in Hefei University of Technology, China (2007) (In Chinese) [8]CAI Gao-tang, WANG Feng: On Standard Limited Value of Sprinkler Head Distance About Automatic Spraying Fire-Extiguishing System, journal of Nanchang College of Water Conservancy and Hydroelectric Power, Vol.19, No.1(2000) (In Chinese) [9] Huang Xiao-jia, Jiang Wen-yuan: Handbook of water-based fire protection systems, [M] China architecture & building press (2006).

Rheology is a study of time-dependent deformation and flow rules of materials under different kinds of stress and strain.
Journal of Fuzhou University(Natural Sciences Edtion), 2005,10:177-181.
Materials and Structures ,2007(40):1001-1012
Guangdong Building Materials.2006(2):15-17.
Materials Science of Concrete VI.Proceedings American Ceramic Society.