Search results

Introduction Most of heterogeneous and anisotropic materials are elastic-brittle solids (such as rock, ceramic and concrete).
But, Wong et al. [3-6] conducted later the experiments on open type of 3-D surface flaw using PMMA, glass and real rock materials including gabbro, sandstone, granite and marble.
Wong (A-PE31, and A-PG46) and the National Natural Science Foundation of China to W.S.
Journal of Geophysical Research, 90(B4) (1985), p.3105-3125 [2] C.K.
Li, 6th European Conference of Fracture Failure Analysis of Nano and Engineering Materials and Structrures, Greece, July, (2006), Paper N.264 [6] R.H.C.

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.

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.

Because lead-core can dissipate seismic energy and increase stiffness under load simultaneously, most of the requirements of the Seismic isolation system can be satisfied , the material-device has been found widespread application prospect in bridge Engineering.
Hysteretic curve is determined mainly dynamic parameters of LRB including post-yield , pre-yield stiffness and yield strength，major factor which affects the parameters is the size of rubber, diameter and height of lead plug and shear modulus of LRB, the three parameters of LRB can be resolved after identifying dimension and material characteristics of LRB.
equivalent bilinear model of hysteretic characteristics of LRB is established, calculation method and reasonable varying range of design parameter of the seismic isolation device is presented, and calculation results show that: (1) Dynamic responses of bridge are trending up with the increase of speeds of train and earthquake strength, but the changes were not linear; (2) Compared to common bearings, LRB can reduce displacement of top of pier, bending moment and shear force of bridge, which possesses excellent seismic isolation ability; (3) The selection of dynamic parameters of LRB is vital to reduce dynamic responses of structure; moreover, the parameter optimization of seismic isolation device of bridge should be emphasized in further study; Acknowledgments This study is a part of an ongoing research project at Central South University and was supported by Minster of Railways of China under Grant No. 2008G031-17 and 2009G - 024, the study was supported by NSFC (National Natural Science
Journal of Structural Engineering. 2004, 9(1):95-100

Experimental 1.1 Materials and instruments The insect waxes were purchased from Emei Insect Wax Institute.
[2] Genwang Zhang: Journal of the Chinese Cereals and Oils Association, Vol.14 (1999), p.31-35
[4] Qiongfen Duan, Liyi Ma, Hua Zhen, et al: Journal of Chemical Industry of Forest Products, Vol.39 (2005), p.42-47
Beijing: Chinese academy of medical sciences, Peking union medical college hospital, 2012
[15] Yulin Li, Wei Mao, Xueyong Zhao, et al: ENVIRONMENTAL SCIENCE, Vol.31 (2010), p.1716-1725.

This study investigated charcoal briquettes as a solar absorber material to accelerate the evaporation rate.
The heat was localised in graphite and carbon foam materials and floated on the water surface.
Then, prepare all the tools and materials, record the parameters that need to be examined to program the Arduino mega in data acquisition, and prepare all the measuring tools and materials needed. 1.
Faturahman, “Pengaruh Kekasaran Material Pada Laju Penguapan Air Laut Dalam Proses Desalinasi Dengan Panas Matahari,” Pros.
Classification, Study Parameters and Future Enhancements," The Egyptian International Journal of Engineering Sciences and Technology, Vol. 30 (2020) 66–78 [5] H.

Materials CGM was kindly supplied by Luzhou Group of China.
Liu: Food Science, Vol. 29 (2008), p. 152 (in Chinese) [5] H.B.
Chen: Food Science, Vol. 31 (2010), p. 145 (in Chinese) [7] S.
Liu (2003): Food Science, Vol. 24 (2003), p. 75 (in Chinese) [10] T.X.
Jiang (2005): Journal of Agricultural Sciences, Vol. 26 (2005), p. 26 (in Chinese) [13] A.

Parameter Forecast and Parameter Optimization of High Inner-pressure Hydro-forming Tees Based on Genetic Algorithms and Back Propagation Algorithms Jian Zhang1,2,a,Tan LI1, Xu CHEN1, Li GU1, Zhihua WANG1,2,b, Hongxiang CUI1,3 1School of Materials Science & Engineering, Tianjin University of Technology, Tianjin 300384, China 2Key Laboratory of Display Materials & Photoelectric Devices (Tianjin University of Technology), Ministry of Education, Tianjin 300384, China 3Tianjin Key Lab for Photoelectric Materials & Devices, Tianjin 300384, China aJian Zhang, E-mail: zhang_jian_99999@126.com(Correspondence Author); bZhihua WANG, E-mail: wzhtj2008@sina.com(Correspondence Author).
In the filleting part, material can’t flow to the branch-tube in time in the deformation process, it accumulated in the filleting part, then this part showed the increased thickness.
Acknowledge This work was supported by Ministry of industry and information Technology of the People’s Republic of China support project under Grant No. 2009ZX04014-063-03, and Tianjin scientific and technical support project under Grant No. 08ZCKFGX02200 and 09ZCKFGX02700, and Tianjin Key Subject for Materials Physics and Chemistry.
Journal of Changsha Communications University.
Chinese Medicine Science and Technology Press 2005 [5] Zhou Ming,Sun Shudong. 1st version．Beijing：National Defense Industry Press 1999 [6] Zhou Hongbao,Mo Dexiu.

Introduction Considering the serious serving condition of aluminum alloy pistons in high power density engine, the chosen aluminum alloy materials should own excellent room-temperature and high-temperature mechanical properties.
Hence, those aluminum alloy piston materials are usually manufactured by squeezing casting method with the addition of Si, Cu, and Ni elements.[1].
Presently, it is urgent to find the ways to enhance the wear and corrosion resistances of new aluminum alloy materials in service term by improving the surface properties of alloys.
Journal of the Chinese ceramic society. 35(2007) 731-735
[10] Weichao Gu, Guohua Lv, Huan Chen,et, Characterization of ceramic coatings produced by plasma electrolytic oxidation of aluminum alloy,Materials Science and Engineer A. 447 (2007) 158-162

Experimental Research on Durabilities of Coal Gangue Concrete Jinmin Guo 1, a,* and Lingli Zhu 2,b 1 Department of Transportation Engineering, Henan University of Urban Construction, Pingdingshan, Henan, China, 467044 2 Scool of materials Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan, China, 454000 agjm89wzy@yahoo.com.cn, bzhull@hpu.edu.cn, *correspondence Authors Keywords: orthogonal design; integrated balance method; coal gangue concrete; compression strength; modulus of elasticity; durability Abstract.
Whether open up the application space of construction materials is a new idea, a new approach and a new method of expanding gangue turning waste into treasure, which is the only way of the national sustainable development.
This new type of green building materials is wanted to be used in the wall fill, drain and cover and so on.
Raw materials Cement.
Chen: submitted to Journal of South China University of Technology (Natural Science Edition) (2011).