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Online since: June 2014
Authors: Jian Lin, Yuan Yuan Gu, Guo Xing Wu, Hui Lu, Yan Cui
The comparison to education conception between American Private Universities and Chinese Private Higher Education Yuanyuan Gu1, a, Guoxing Wu1, b, Hui Lu1,c,Yan,Cui1,d, Jian Lin2, e 1Tianhua College of Shanghai Normal University, Section of Practice and Training, Shanghai, China 2Tongji University, School of Materials Science and Engineering, Shanghai, China ahannuo0615@163.com, bxhwuguoxing@hotmail, ccomjanetluck@126.com, dhellokitty@163.com,elin_jian@tongji.edu.cn Key word: American Private Universities, education conception, talent training mechanism, Chinese Private Higher Education Abstract.
Personnel training of Private Universities in United States thanks to its abundant human and material resources, but also benefited from the scientific, systematic personnel training system.
Online since: September 2013
Authors: Jin Luo, Chun Liu, Yi Wang, Su Ming Duan, Ji Wei Hu, Miao Jia, Xian Fei Huang, Li Ya Fu, Zhi Bin Li
Guizhou Provincial Key Laboratory for Information Systems of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, P.
Materials and Methods Instruments and Reagents.
The Sb standard solution was purchased from the National Standard Material Research Center.
Weng: water and wastewater engineering Vol. 30 (2004), p. 86 (in Chinese) [3] Y.
Online since: March 2008
Authors: Yutaka Kobayashi, Masanori Kikuchi, Akiyuki Takahashi
Phase Field Simulation of Rafting Behavior of γγγγ' Phase in Nickel Base Superalloy Akiyuki Takahashi1, a, Yutaka Kobayashi1,b and Masanori Kikuchi1,c 1 Department of Mechanical Engineering, Faculty of Science and Technology, Tokyo University of Science, 2641, Yamazaki, Noda, Chiba, 278-8510, JAPAN a takahash@me.noda.tus.ac.jp, byutaka@me.noda.tus.ac.jp, ckik@me.noda.tus.ac.jp Keywords: Phase Field, Rafting, Nickel base Superalloy, Interfacial Dislocation Network.
Introduction Nickel base superalloys have an excellent high temperature creep strength, and are used as a material of gas turbine blades.
The morphology of the γ' phase must be affected by the interfacial dislocation networks, and must be an element that controls the material property.
The material constants cij of the γ phase and the γ' phase at 1023K are (in the unit of GPa) γ11c =112.4, γ12c =67.2, γ44c =56.9, '11 γ c =166.7, '12 γ c =106.5, and '44 γ c =99.2 [1].
Therefore, one of the key parameters in the rafting behavior is the lattice misfit, which is defined by ( ) γγγ δ 00 ' 0 aaa −= .
Online since: September 2013
Authors: Xiao Ming Wang, Qiang Li
The behavior of the system can be effectively controlled to ensure the service quality by analyzing the structure of students support service system with “the learners as the center” and setting up the intervention points at the six key links of “teaching work supporting service,” “management supporting service,” “practice supporting service,” “resources supporting service,” “learning-assisted supporting service” and “technique supporting service” [7].
There are not only various characteristics of the natural material world in the learners’ thinking, emotions, will, and behavior, but also other advanced and complex features, that there are not above.
For this reason, there must be an exchange of materials, energies and information between the system and the outside world and the input from outside, to which the system opens, reaches a certain threshold.
Systems Science and Engineering: Theories and Applications, Shanghai Science and Technology Education Press, Shanghai, 2001.4, pp506-511
Online since: January 2009
Authors: Yu Liu, Xian Zheng Gong, Zhi Hong Wang, Wei Liu, Zuo-Ren Nie
Multiple Imputation for Missing Data in Life Cycle Inventory Yu LIU, Xianzheng GONG, ZhiHong WANG, Wei LIU, Zuoren NIE* School of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China zrnie@bjut.edu.cn Keywords:life cycle assessment; multiple imputation; missing data Abstract.
Introduction Life cycle assessment is a compilation and evaluation of the inputs, outputs and the potential environmental impacts of a product system throughout its life cycle including consecutive and interlinked stages of a product system from raw material acquisition or generation of natural resources to final disposal [1].
Acknowledgement This work was financially supported by the National Natural Science Foundation of China (NSFC, Project No.50525413), National 863 Project (2007AA03Z432), National 973 Project (2007CB613206) and National Key Technology R&D Program (No.2006BAE04B09 and No.2006BAF02A23).
Online since: July 2013
Authors: Lin Li, Ren Yu Fu, Chao Bin Huang, Mei Zhang, Wei Ming Zeng
Recrystallization Behavior of 0.11% Ti-added Complex Phase Steel During Hot Compression Mei Zhang1,a, Chao-bin Huang, Wei-ming Zeng, Ren-yu Fu1,b, Lin Li1,c 1School of Materials Science and Engineering, Shanghai University, 200072, China azhangmei3721@shu.edu.cn, bfury@staff.shu.edu.cn, cliling@shu.edu.cn, Keywords: Ti-microalloyed complex phase steel, recrystallization, non-isothermal hot deformation Abstract.
The generalized equation is [10]: (1) where ,and are the corresponding flow stress values taken, in this case, for 2% plastic strain and represent the flow stresses for work hardened, completely recrystallized and partially recrystallized material respectively.
Acknowledgement This work is financially supported by National Key Basic Research and Development Project of China “973 Program” (Grant No. 2010CB-630802) and the National Natural Sciences Foundation of China (Grant Nos. 50934011 and 50971137).
Online since: August 2013
Authors: Zan Dong Han, Kun Zhang, Ke Yi Yuan
Long range inspection of rail-break using ultrasonic guided wave excited by pulse string ZHANG Kun1, a, HAN Zandong1,b and YUAN Keyi1,c 1 Dept of Mechanical Engineering, Tsinghua University, Beijing, 100084, China a zhangkun.19890612@163.com, bhanzd@tsinghua.edu.cn, cyuankeyi@gmail.com Keywords: Ultrasonic guided wave; rail-break inspection; pulse string; phase-shift superposition Abstract.
For above detection, inspection distance is a key evaluating indicator, which is usually required up to hundreds of meters.
Generally, angle transducer is used for generating SH guided wave, which is composed of PZT piezoelectric wafer, wedge, backing material and accessories.
As for new designed transducer, the backing material was canceled for it would absorb wave energy which would be detrimental to long range inspection.
The rail-break inspection system would be linear if ignoring material nonlinearity, so superposition theorem suits the system.
Online since: August 2017
Authors: Ze Kai Zhang, Si Si Han, Dong Li, Yin Fei Chen
Fabrication of TiO2 by Rotating Horizontal Anodization and its CO2 Photoreduction Activity Sisi Han1,a, Dong Li1,b, Yinfei Chen1,c and Zekai Zhang1,d* 1College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18, 310014 Hangzhou, China a1042762202@qq.com, b1666295541@qq.com, cyfchen@zjut.edu.cn, dzzk@zjut.edu.cn Keywords: ZnO; anodization; CO2; photoreduction; rotating horizontal electrode.
The key factor to obtain uniform tubules on the Ti foil is the uniform distribution of the processing conditions (current density, potential, electrolyte and temperature) in the zone of two electrodes.
Fig.1 Schematic diagram of vertical and horizontal anodization Fig.2 SEM top-view image of TiO2 nanotube arrays anodized by vertical manner, the inserts are digital images Materials and methods For the vertical electrode manner, the detailed process can be seen in elsewhere [17].
Grimes, A review on highly ordered, vertically oriented TiO2 nanotube arrays: Fabrication, material properties, and solar energy applications, Sol.
Online since: February 2019
Authors: N.S. Yousef, Z.F. Ghatass, Mohamed S. Badawi, M.M. Mohamed, Mostafa Elkhatib, Ahmed M. El-Khatib
The important key in the adsorption process is to find cheap adsorbent materials capable of removing dyes with high efficiency [10].
Finally, Kinetic models, Adsorption isotherms, and adsorption mechanisms were tested for the previous nano materials to identify the potential of adsorption process.
Materials and Methods Materials All reagents used were of analytical grade (AR) chemicals.
Weiner, Robin Matthews, Environmental Engineering, Fourth Ed., Butterworth-Heinemann, 2003, pp.102
[19] Qingchun Chen, Qingsheng Wu, Preparation of carbon microspheres decorated with silver nanoparticles and their ability to remove dyes from aqueous solution, Journal of Hazardous Materials, J.
Online since: November 2010
Authors: A. Sarkar, S.S. Pradhan
In this paper, an attempt has been made to prepare complex materials from biological ingredients.
The resulting new complex molecules are supposed to be supra-molecular / large molecular materials.
Here central interest is with new materials for what it does, rather than what it is.
Conventional solar cells are built from inorganic silicon-like materials.
Sarkar, Materials Science and Engineering.
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