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Online since: December 2010
Authors: Qing Hua Meng, Yan Ling Zhang, Hong Shun Yu
The material’s admissible stress is 355MPa, and the Chinese standard rules that the max deformation is less than 1.5mm per m under full load.
Thus the stress constraint condition is that the housing’s maximum von Mises stress must be less than the material’s admissible stress.
Because the admissible stress of material used in housing is 355MPa, the stress variable is described as
Acknowledgements The project supported by Zhejiang Provincial Natural Science Foundation of China(Grant No.Y1090199) Reference [1] R.
Sebaaly: Journal of Transportation Engineering.
Online since: January 2015
Authors: Zhong Tao, Wen Lu Wen, Li Chao Zhou
The key issues and considerations of Buckling restrained braces in seismic applications Wenlu Wen1, a, Lichao Zhou1,b , Zhong Tao1,c 1Department of Civil Engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650500, China a455683148@qq.com, beaglezlc@sina.com, ctsy0410km@126.com Keywords: Buckling Restrained Braces, Dissipate energy, Seismic Performance, Installation Abstract.
If it has not properly managed, yield strength range of core material will be very wide.
(2) Where: fy is the yield strength of the core material.
Super steel factor should be considered when calculating ultimate bearing capacity of buckling restrained braces, buckling restrained braces core material will produce a strain hardening effect in the drop-down pressure yield earthquake, after considering the strain hardening, the maximum carrying capacity support is ultimate bearing capacity, ultimate bearing capacity could be calculated according to equation.3:
Canadian Journal of Civil Engineering, 1991, 18(5):839—850
Online since: June 2015
Authors: Toshiyuki Isshiki, Munetoshi Fukui, Takahiro Sato, Yoshihisa Orai, Yoshihiro Ohtsu
Introduction SiC is a promising material for high power devices due to its wide band gap.
Fukui, Materials Science Forum Vols. 778-780 (2014) , pp 358-361 [3] Y.
Ishitani, Journal of Electron Microscopy 53(6), pp.583-588 [5] T.
Online since: September 2011
Authors: Pin Wu Guan, Meng Chen
Experiment background material and theoretical basis can be applied in engineering application [1,2].
According to materials-Tensile testing at ambient temperature>(GB/T 228-2002), the yield strength, ultimate tensile strength, elastic modulus and elongation are all tested in Table1.
Li: Journal of Zhengzhou University (Engineering Science) , Vol. 29 (2008) No.2, p.18.
Online since: October 2011
Authors: Wei Lu, Qing Chun Yang, Ping Li
A numerical sensitivity analysis to bentonite parameters for a long term geochemical evolution of a HLW repository in clay Qingchun Yang1, 2, a, Wei Lu 3, b, Ping Li 4,c 1 Escuela de Ingenieros de Caminos, Universidad de A Coruña, Campus de Elviña, 15192, A Coruña, Spain 2 State key Laboratory of Water Resources and hydropower Engineering Science, Wuhan University, Wuhan, 430072, China 3 Guangzhou Institute of Geography, Guangzhou, 410070, China 4 School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China a qyang@udc.es, b lujingyi2971@yahoo.com.cn, c liping_0224@163.com Keywords: Numerical model, sensitivity analysis, high-level radionuclide waste, bentonite Abstract.
Bentonite is commonly selected as a clay barrier material.
Fig. 1 Scheme of a multibarrier system for a Fig. 2 1-D finite element grid with node number (top) and potential HLW repository in a clay formation element number (below) (ENRESA, 2004) Conceptual model Three material zones are considered in the model: 1) bentonite with 0.75 m for the radial thickness, 2) a 0.3 m concrete sustainment and 3) the clay formation with a thickness about 23.5 m.
Material Hydraulic conductivity (m/s) Initial porosity Effective diffusion coefficient (m2/s) Bentonite 2.75·10-14 0.407 1.66·10-11 Concrete 3.39·10-12 0.085 1.83·10-10 Clay 4.19·10-12 0.37 5.01·10-11 Table 2 Cation exchange reactions and selectivity coefficients in bentonite and clay Cation exchange reactions Bentonite Clay KX + Na+ Û NaX + K+ KNa/K = 0.094 KNa/K = 0.013 0.5 CaX2 + Na+Û NaX + 0.5 Ca+2 KNa/Ca = 0.279 KNa/Ca = 0.081 0.5 MgX2 + Na+Û NaX + 0.5 Mg+2 KNa/Mg = 0.306 KNa/Mg = 0.200 HX + Na+ Û NaX + H+ KH/Na = 3.16·10-5 KH/Na = 3.16·10-5 Model results This paper is aiming at analyzing the sensitivity of geochemical evolution to bentonite parameters.
Arcos, et al.,: Journal of Contaminant Hydrology, vol. 102 (2008) p. 196–209
Online since: April 2015
Authors: Bahareh Haddadi
The piezoelectric devices (PZD) is used for simulating piezoelectric substrate material, and LiNbO3 is used as a substrate in the simulation.
Springer, Science, 324 (2009) 1330–1334
Cooper, Advanced Materials, 23(2011) 1458–1462
Chang, Journal of Applied Physics, 98 (2005) 024903
Online since: March 2004
Authors: Ho Jung Chang, Sang Woo Joo, Cheng Zhu Lu, Dong Un Seo
Introduction Since optical, magnetic, and electronic properties of semiconductors can vary sensitively depending on dimensions, the ability to prepare nanoparticles of any desired size will open significant opportunities in material science [1].
Understanding of the adsorption of organic molecules on semiconductor surfaces should be important, considering that the ability to tailor the properties by self-assembled monolayers can provide a new a functionality of materials.
Our 250 300 350 0.0 0.2 0.4 0.6 (a) Absorbance Wavelength(nm) 250 300 350 0.0 0.2 0.4 0.6 (b) Absorbance Wavelength(nm) Journal Title and Volume Number (to be inserted by the publisher) results indicate that alipathic isocyanides such as pentyl and butyl isocyanides adsorb on ZnO nanoparticle surfaces to arrest the growth.
Online since: November 2012
Authors: Guang Xia Ma, Jin Kun Sun, Min Cheng
Comprehensive evaluation A Technical evaluation B1 Price quotation evaluation B2 Qualification and reputation B3 Main construction scheme C1 Construction schedule C2 quality C3 Equipment,material,staff C4 Overall price quotation C5 Unit price of main item C6 Qualification and finance C7 Achievements and reputation C8 Subcontractor D1 Subcontractor D2 Subcontractor D3 Fig .1.
Table 7 .The value of index of each construction enterprise Enterprise Index D1 D2 D3 Construction scheme 9 8 9 Schedule and time limit 90 97 100 Quality 8 7 8 Equipment, material and staff 9 7 8 Tender sum 86 73 67 Unit price of material 8 8 7 Qualification and finance 9 8 8 Achievements and reputation 8 9 9 Judgement matrix(omitted) is built through the same method, and eigenvector can be calculated
International Journal of Project Management.2001,19(1),P19~27 [3] Weishan Yang, Coastal Enterprises and Science & Technology Vol.10 (2006), p.71 [4] Qiyuan Jiang.Jinxing Xie.Jun Ye Mathematical Model [m] Beijing.
Online since: July 2013
Authors: Zheng Lu, Li Ping, Gao Ji, Zhang Di
Visual Experiment and Analysis of Erythrocyte High-SpeedCollision in Microchannel Lu Zheng1,a, Ping Li2,b, Ji Gao2,c, Di Zhang1,d,* 1Key Laboratory of Thermal-Fluid Science and Engineering, Ministry of Education, Xi'an Jiaotong University, Xi'an, 710049, P.
Lampert et al. [4] carried on the research on the effect of the surfaces of metal and plastic on hemolysis caused by shear stress and reported affinity between the material’s surface energy and its effect on hemolysis.
Williams, Effect of surface materials on shear- induced hemolysis, J.
Liu, et al., Numerical Investigation on Flow Field and Biocompatibility of an Axial Blood Pump, Journal of Xi’an Jiaotong University. 40 (2006) 1290-1294.
Online since: July 2011
Authors: Jian Zhong Wang, Bing Wang, Li Dan Tang
Effect of post-annealing ambient on electrical structural properties and optical properties of ZnO:Al transparent films Lidan Tang 1,a, Bing Wang 1,b, Jianzhong Wang1,c 1Department of Materials science and engineering, Liaoning University of technology, Jinzhou, 121001, China akittytld@yahoo.com.cn, lgclwb@yahoo.com.cnb, clgxzemail@126.com Keywords: ZnO film; RF/DC magnetron sputtering; p-type.transparent film.
Introduction Zinc oxide has attracted much attention as a promising material for short-wavelength optoelectronic devices, such as ultraviolet light emitting diodes and laser diodes, because of its wide band gap (3.37eV) and large exciton binding energy (60meV) [1,2].
Vol.95 (2004) , p.5882 [10] Cao HT, Peia ZL, Gonga J, Suna C, Huanga RF, Wena LS. : Journal of Solid State Chemistry Vol.177 (2004), p. 1480 [11] Perkins CL, Lee SH, Li XN, Asher SE, Coutts TJ. : J Appl Phys Vol.97 (2005), p. 034907
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