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Online since: September 2014
Authors: Min Sheng Zheng, Zhan Weng, Shun Wen Ji
The filling materials of dam mainly comes from the spillway and diversion system excavation, as well as the natual riverbed sandy and gravel.
As a viscoelastic plasticity material, the measured strain of concrete includs stress strain and non-stress strain, such as autologous volumetric deformation, creep, temperature deformation, etc.
J., Concrete Face Rockfill Dam(Huazhong University Of Science And Technology Press,Wuhan 1993) (in Chinese)
Chinese Journal of Geotechnical Engineering, Vol. 30(11) (2008), p.1651-1656
Chinese Journal of Geotechnical Engineering, Vol. 34(12) (2010), p. 2299-2306(in Chinese).
Online since: October 2012
Authors: Xia Chen, Hua Quan Yang, Jian Jun Yan
Materials and Methods The chemical compositions of 42.5 medium-heated Portland cement and chemical components of class I fly ash by mass volume of 35 per cent used for test were listed in Table1.Crushed basalt fine and four coarse aggregates correlated with DL/T 5144-2001, including artificial basalt, diorite, limestone and natural aggregates as shown in Fig.1 and table 2, were used to make concrete.
Journal of Wuhan University of Technology, 2010,32(19):50-54
Computational Material Science, 2008, 43(1):119-126
Journal of hydro power, 2010, 29(5): 98-101
Online since: May 2011
Authors: Y.K. Vijay, Subodh Srivastava, Sumit Kumar, Vipin Kumar Jain
Vijay Thin Film and Membrane Science Lab, Department of Physics, University of Rajasthan, Jaipur-302055, INDIA asubodhphy@gmail.com Key words: Polyaniline (PANI), MWNT-PANI composite, Chemiresistor sensor, H2 gas sensing, Atomic force microscopy (AFM), X-ray diffraction (XRD).
In the present work chemiresistor type gas sensor containing several pairs of Cu-Interdigited electrodes (Cu-IDE) coated with a sensing film of composite material has been fabricated.
Thin senstive films of synthesized materials were deposited onto cleaned Cu-IDE epoxy glass substrates using the spin coating technique at a speed of 2000 rpm for 2 min.
Vijay, Characterization of gas sensing behavior of multi walled carbon nanotube polyanniline composite films, Int. journal of hydrogen Energy 34(2009) 8444-8450
Vijay, TiO2/PANI and MWNT/PANI Composites thin films for Hydrogen Gas Sensing, AIP journal proccedings, 1313 (2010), 253-255
Online since: September 2013
Authors: Xue Song Liang, Feng Qing Zhao, Li Xia Hao
Research on Stability of Synthetic Folic Acid Liang Xue-song1, a, Zhao Feng-qing1, 2,b, Hao Li-xia1, 3 1Department of Chemical Engineering, Hebei University of Science & Technology, Shijiazhuang 050018 P.R.
Experiment Materials: Folic acid (purity: 98 %), Methanol (HLPC grade), Ultrapure water (HLPC grade), Sodium carbonate anhydrous (AR), Potassium dihydrogen phosphate (AR), Dipotassium hydrogen phosphate trihydrate (AR).
Advanced material research Vol. 549(2012), p.74 [2] M.
Journal of the American Medical Association Vol. 302(2009), p. 2119 [3] E.
International Journal of Cancer Vol. 126 (2009), p.16 [4] Chuanmao Wu , Fatang Jang.
Online since: January 2015
Authors: Xin Yan Wu, An Ping Luo, Jian Jun Huang
The material of the walking-slab and movable joint is aluminum, and the cross-scissor bars and are made of carbon fibre complex materials.
Acknowledgement In this paper, the research was sponsored by the Community Fund Project of Science and Technology of Zhejiang Province (Project No. 2014C33052).
Langbecker, Kinematic analysis of deployable scissor structures, International Journal of Space Structures 14 (1) (January 1999) 1–15
Dong, A new design conception for large span deployable flat grid structures, International Journal of Space Structures 17 (4) (2002) 293–299
Online since: May 2011
Authors: Hai Jing Liu, Jia Yan Zheng
The surrounding rock of the tunnel is considered to be ideal elastic-plastic material following non-associated Drucker-Prager yield law while the liner is considered to be isotropic elastic material.
Table 1 Material property for the numerical model The contact force, frictional force, load on the tunnel liner can be calculated and the safety factor of tunnel liner can be analyzed with the numerical model of tunnel by contact method.
Acknowledgments Thanks for the financial support from the fund of Key Laboratory of Bridge-Structure Engineering of Ministry of Communications, Chongqing Jiaotong University (No.CQSLBF-Y10-7) and the fund of Key Project of Chongqing committee on science and technology (No.
The application of ground-penetrating radar in non-destructive test of tunnel engineering, Journal of Chengdu University, 2003(3):6-10(in Chinese) [2] Song Ruigang, Zhang Dingli.
Chinese Journal of Geological Disaster and Prevention, 2004(4):69~72, 81(in Chinese) [3] ANSYS Inc.
Online since: February 2014
Authors: Hong Chun Sun, Ling Ling Zhang, Bei Ming Zhao
Data acquisition Fig.1 The FEM crack model Containing different depths of cracks steel rods for Ansys finite element modal analysis, material parameters of steel rods are elastic modulus E = 2.1 × 105MPa, poisson's ratio ε = 0.3, density ρ = 7.85 × 10-6kg / mm3; diameter d = 8mm, total length L = 484mm, the ratio of depth and diameter of crack h / d = 0,0.050,0.075,0.100,0.125,0.150,0.175 seven different depths crack rod for analysis.
Smart Materials and Structures Vol.10( 2001), p.518-527
Journal of vibration and shock Vol.23(2004), p. 1-7
Engineering analysis and application of wavelet transform , Bei Jing,Science Press(1999)
International Journal of Solids and Structures Vol.39(2002), p.1803-1816.
Online since: May 2012
Authors: Chen Liang Zhou, Quan Sheng Liu, Yang Li, Ying Yue Teng, Ke Duan Zhi, Yin Min Song, Run Xia He
Coal is a very complex and heterogeneous material consisting of organic and inorganic materials, therefore, lots of researchers considering that pyrolysis temperature, pressure and time are important factors for organic maturation and hydrocarbon generation[3].
Acknowledgements This work was partially supported by Major Program of Natural Science Foundation of Inner Mongolia, Talented Person Foundation of Inner Mongolia and Program Foundation for Coal Chemistry Preponderant Discipline of IMUT.
Journal of analytical and applied pyrolysis.80(2007), 262-268
International Journal of Coal Geology, 87(2011), 26-32
Online since: August 2011
Authors: Guo Yong Liu, Shao Jun Zhang, Jie Yang, Dong Mei Zhu, Qi Shen Zhu
Study on transverse cooling uniformity in controlled cooling process of copper plate Dongmei Zhu1, Guoyong Liu1, Shaojun Zhang1 , Qishen Zhu2 , Jie Yang1 1School of Mechanical Engineering, University of Science and Technology Beijing, 100083,China 2Nanjing Institute of Industry Technology , Nanjing Jiangsu 210046, China Keywords: copper plate, controlled cooling, cooling uniformity.
It is known from transfer heat theory that the transfer heat differential equation of three-dimension transient temperature field is given by [4] : (1) where is temperature(℃); is material density(kg/m3); is material specific heat(J/(kg.℃)); is conduction temperature coefficient(m2/s); t is time(s).
The material is copper T2, Which has excellent electrical conductivity, thermal conductivity and good corrosion resistance.
Li and Y.Lu: Journal of Gansu University of Technology, (2002) No. 2, p.26.
Li: Journal of iron and steel research, Vol.14(2002) No.3, p.39.
Online since: October 2012
Authors: Tao Wan, Xiu Mei Jin, Shu Juan Xi
The material’s properties are shown in table 1.
Table 1 The parameters of material properties parameters material modulus of elasticity [Mpa] gravity mass [kN/m3] allowable tensile strength [Mpa] girder concrete (C50) 3.45×104 26.5 2.79 pier concrete (40) 3.25×104 26.0 2.43 prestressing tendons 1.95×105 — — Calculation and Discussion The purpose of imposing jacking forces during the closure stage is to adjust the structural alignments and internal forces at the operational stage.
Western China Communications Science & Technology, Vol. 7(2009), p89, In Chinese [2] ZHANG Maolong, YANG Chengbin.
Journal of Hunan Institute of Engineering, Vol. 2(2011), p92, In Chinese [3] Yaxun Yang.
Journal of Anhui Institute of Architecture & Industry, Vol. 2(2010), p58, In Chinese