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Online since: May 2016
Authors: Mamoru Aizawa, Nobuyuki Kanzawa, Hiroki Takano, Masahiro Takahara, Kei Yasuda
AFS was used here to study its utility for soft-tissue engineering.
Introduction A variety of three-dimensional scaffolds for cell culture have been used in tissue-engineering applications.
Heart tissue engineering is one of the most attractive targets for cell-based regenerative medicine using induced pluripotent cells and/or embryonic stem cells.
Materials-based engineering strategies for cardiac regeneration have also been used to improve cell survivability in a multi-layered artificial tissue [7].
Materials and Methods Materials: The green compacts of HAp-fibers mixed with carbon beads were fired at 1300°C for 5 hours as described previously [1].
Online since: June 2009
Authors: Jin Ji Gao, Li Dong He, Wei Min Wang, Hong Xu
The engineering self-recovery theory is different from engineering cybernetics.
Engineering Self-recovery Theory.
Theory Category of Engineering Self-recovery Theory Category of Engineering Cybernetics [3, 4, 6].
Comparison between Engineering Self-recovery Theory and Engineering Cybernetics.
Summary 1) Similar to the engineering cybernetics, engineering self-recovery theory also comes from engineering practice by continuous generalization and summation.
Online since: January 2011
Authors: Zhi Gang Zhang, Xiao Yong Li
Experimental Study on Engineering Performance of Portland Cement Stabilization of Soil-Bentonite LI Xiaoyong1, a, ZHANG Zhigang1,b 1 College of Architecture, North China University of Technology, Beijing 100144, China aleexy1970@126.com, bsd555811@126.com Keywords: Cement, engineering performance, bentonite, test Abstract.
Material Performance Cement.
Dosage of materials is seen in Table 5.
Table 5 Dosage of materials Number Bentonite (g) Cement content(g) Water content(g) Water/cement ratio A1 300 500 1000 2 A2 300 250 1000 4 A3 300 167 1000 6 A4 300 125 1000 8 B1 400 500 1000 2 B2 400 250 1000 4 B3 400 167 1000 6 B4 400 125 1000 8 Specimen Preparation.
[10]CN Yang and SL Ding, Removal of Ni2+ from containing wastewater by bentonite of Handan, Journal of Hebei University of Engineering (244) (2007), p. 63–66.
Online since: January 2012
Authors: Jin Li, Hong Yi
Ship manufacturability evaluation is one of the most important works in concurrent engineering researches.
Introduction Shipbuilding is a complex system engineering, which involves painting, hull construction and outfitting.
The cost items of manufacturability are: cost of purchased parts, materials costs, labor costs, manufacturing costs, assembly costs, tooling costs.
Engineering Manufacture, p.1203
China Mechanical Engineering, Vol.12 (2001), p. 756
Online since: May 2015
Authors: Shou Mian Chen, Yu Hang Zhao, Min Zhong, Ming Li, Shao Hai Zeng, Wei Zhang
Raised SiGe S/D plays a critical role in strain engineering.
Introduction Due to the continuing trend of downscaling of semiconductor devices, strain engineering is now widely adopted in complementary metal–oxide–semiconductor (CMOS) device fabrication.
It has also been reported that a raised SiGe S/D can play a critical role in strain engineering [5], i.e., the SiGe film is overfilling the S/D trench after the SiGe deposition process.
Key features of the deposited SiGe films and the Si cap layer.
However, it should be noticed that due to the large range of stress proximity effects in CMOS materials, the modeling of an isolated devices is not sufficient to predict the final circuit behavior.
Online since: July 2014
Authors: Ai Ping Fu, Chang Ke Tian, Cheng Yan Zhao, Feng Hui Tian, Yun Bo Duan, Zong Hua Wang
Theoretical investigation on the role of amine bases in stabilizing the key intermediate of proline enamine carboxylate in proline-catalyzed asymmetric reactions Changke Tiana, Aiping Fub*, Chengyan Zhaoc, Fenghui Tiand, Yunbo Duane, and Zonghua Wangf Institute for Computational Science and Engineering, Laboratory of New Fiber Materials and Modern Textile, the Growing Base for State Key Laboratory, College of Chemical and Environmental Engineering, Qingdao University, Qingdao 266071, China b email: faplhl@eyou.com Keywords: Organocatalysis, Amine bases, Enamine carboxylate, DFT Abstract.
Quantum mechanical calculations have been performed to study the equilibrium among the key intermediates (iminium ion, oxazolidione, and enamine) in the proline-catalyzed reactions under base-free and base-present conditions.
The general mechanism of the proline-mediated reactions of aldehydes or ketones has been envisaged to involve three key intermediates as iminium ions/enamines/oxazolidinones and the enamine intermediates were proposed to hold the key to the mechanism.
As reported by Gschwind et al. in their experiments, there exists the tautomeric equilibrium among the three key intermediates of enamine, iminium ions, and oxazolidiones.
Summary DFT study have been performed to explore the equilibrium among the key intermediates (iminium ion, oxazolidione, and enamine) in the proline-catalyzed reactions.
Online since: January 2005
Authors: Ivi Smid
Zinkle: Fusion Engineering and Design Vol. 61-62 (2002), p. 13 [3] S.J.
Ying et al.: Fusion Engineering and Design Vol. 54 (2001), p. 181 [12] I.
Ghoniem: Fusion Engineering and Design Vol. 51-52 (2000), p. 55 [18] R.
Schedler: Fusion Engineering and Design Vol. 58-59 (2001), p. 743 [19] J.
Scheerer et al.: Fusion Engineering and Design Vol. 42 (1998), p. 511
Online since: March 2010
Authors: Hui Hui Li, Yong Yang, Guang Yao Meng
Study on Prediction of Machining Distortion for Titanium Alloy Aircraft Monolithic Component by FEM Yong Yang a, Huihui Li b and Guangyao Meng c School of Mechanical Engineering, Qingdao Technological University, Qingdao, Shandong, 266033, China a yangyong913@gmail.com, blihuihui313@163.com, cgymeng1963@163.com Keywords: Aircraft monolithic component, Titanium alloy, Machining distortion, FEM.
Several key technologies, such as material constitutive model, material removal methodology of machining process, determination and application of cutting loads, have been implemented to improve the accuracy of finite element simulation.
Key technologies of FEM Material constitutive model.
To improve the accuracy of the FEM, several key technologies have been implemented. 2.
Sun: Chinese Journal of mechanical engineering Vol. 68-71 (2005), p. 117-122 (In Chinese) [5] Z.J.
Online since: July 2013
Authors: Xi Yin Lou
Research on the Selection and Evaluation Content Of Green Materials Lou Xi-yin Department of Mechanical & Electronic Engineering, Huzhou Vocational Technology College, Huzhou 313000, China Key Words: Green design; Green materials; Selection; Evaluation content Abstract: In this paper, the material selection in green design is the product design as far as possible to choose green materials; green material selection must be strict with.
Green material is in the human to realize the protection of the ecological environment is particularly important strategic significance and countries around the world to take the road of sustainable development under the background mentioned, is the development trend of Engineering Materials Science in china.
Process materials that material processing difficulty degree.
In ensuring product usage and technology under the premise, should use cheaper materials, at minimum cost to obtain the greatest economic benefits, make the product has the strongest in the market competition. 2.5 The principle of the environment Principle of environment for selection, should be based on environmental criteria: material selection as little as possible with or without raw materials, toxic, and the use of low energy consumption, low cost, less pollution materials; preferred easy processing and material without pollution or contamination of minimum in the process; preferred in the whole life cycle process no side effects on the ecological environment with low energy consumption; materials; materials; to avoid or reduce the need for high energy extraction and processing of materials used; as far as possible the use of raw materials without any coating; material as far as possible the use of renewable[3].
Mechanical Science and Technology for Aerospace Engineering.2012 (9):1439-1444
Online since: July 2008
Authors: Ze Zhong Jiang, Tao Xie, Yan Jun Qiu, Bo Lan
Crack Propagation Behavior of Asphalt Concrete Part I: A Study into Influence of Different Materials Tao XIE 1,a , Zezhong JIANG 2,b, Yanjun QIU 2,c and LAN Bo 3,d 1 College of Civil and Architecture Engineering, Guizhou University, Guiyang 550003, China 2 College of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China 3 Department of Transportation of Sichuan Province, Chengdu 610041, China a xie_tao96@163.com,b qmrjzz@yahoo.com.cn, cpublicqiu@163.com, dsclb2008@163.com Keywords: asphalt concrete, crack propagation behavior, CT, material Abstract: The fracture resistance of asphalt materials significantly influences the service life of asphalt pavements and consequently affects the maintenance and rehabilitation costs of the pavement network.
The specially designed loading system is the necessary accessory for the CT machine at the State Key Laboratory of Frozen Soil Engineering of China.
The CT test was carried out in the State Key Laboratory of Frozen Soil Engineering from Aug.24 to Sept.10, 2006.The asphalt concrete samples were used to study the crack propagation law under uniaxial compression with CT real-in time scanning test.
The Crack Propagation Behavior is influenced by the materials of it's.
Dissertation, School of Civil Engineering, Southwest Jiaotong University, Chengdu, 2006
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