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Online since: October 2007
Authors: Paulo Rangel Rios, Martin E. Glicksman
Glicksman
2,b
1
Universidade Federal Fluminense Escola de Engenharia Industrial Metalúrgica de Volta
Redonda, Av. dos Trabalhadores 420, Volta Redonda, RJ, 27255-125,Brasil
2
University of Florida, Materials Science & Engineering Department, Gainesville, FL 32611-6400
USA
a
prrios@metal.eeimvr.uff.br, bmglic@mse.ufl.edu
Keywords: microstructure, grain growth, abnormal grain growth, analytical methods, polycrystals.
Topological and metrical components of grain growth The key assumptions employed in this analysis are that an abnormal grain can be represented topologically as a GNH, and that the linear gauge of the GNH equals the average vertex separation of the grain network.
Topological and metrical components of grain growth The key assumptions employed in this analysis are that an abnormal grain can be represented topologically as a GNH, and that the linear gauge of the GNH equals the average vertex separation of the grain network.
Online since: October 2011
Authors: Meng Lin Qin, Bryce Bushman, Hong Tao Xu
In order to achieve a stable function they must constantly obtain materials and energy from outside their administrative boundaries and create output products and waste.
Human production practices include ecological risk caused by traditional business methods and technologies, risk factors of resource development and utilization (such as biological invasions), ecological risk caused by biological engineering, water pollution, heavy metals, and so on.
Assessing the carrying capacity of the Florida Keys Population and Environment, 2002, 23(4):405 [3] Kreg Lindberg, Stephen McCool, George Stankey.
Human production practices include ecological risk caused by traditional business methods and technologies, risk factors of resource development and utilization (such as biological invasions), ecological risk caused by biological engineering, water pollution, heavy metals, and so on.
Assessing the carrying capacity of the Florida Keys Population and Environment, 2002, 23(4):405 [3] Kreg Lindberg, Stephen McCool, George Stankey.
Online since: October 2010
Authors: Lin Yu, Gui Qiang Diao, Qian Yu, Yong Feng Li, Ming Sun, Ying Min Huang
Study on Reverse Micro emulsion Method Applied in Preparation of Catalyst MnBaAl11O19-δ for Dimethyl Ether Combustion
Qian Yu1, a, Lin Yu 1,b, Guiqiang Diao1,c, Ming Sun1, d, Yingmin Huang1,e, Yongfeng Li1,f
1 Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China
a yuqgdut@126.com, b gych@gdut.edu.cn, c dguiqiang@126.com, d hukis@126.com, earminhon@126.com,fgdliyf@163.com
Keywords: Reverse microemulsion, Dimethyl ether, Catalytic combustion, Hexa-aluminate
Abstract.
Hexa-aluminate material was used as high temperature combustion catalyst, because of its high thermal stability associated with their peculiar layered structure, for example, β-Al2O3 structure or magnetoplumbite (MP) structure, kept apart by mirror planes in which the large cations such as Ba2+, La3+ or Sr2+ was located.
But it was not only expensive but also rigorous operating condition for using alkoxide as material.
Therefore, the adsorbed oxygen may be a key in the ignition time of DME catalytic combustion, this suggested that the catalyst with high surface area favored for the reaction [12].
Hexa-aluminate material was used as high temperature combustion catalyst, because of its high thermal stability associated with their peculiar layered structure, for example, β-Al2O3 structure or magnetoplumbite (MP) structure, kept apart by mirror planes in which the large cations such as Ba2+, La3+ or Sr2+ was located.
But it was not only expensive but also rigorous operating condition for using alkoxide as material.
Therefore, the adsorbed oxygen may be a key in the ignition time of DME catalytic combustion, this suggested that the catalyst with high surface area favored for the reaction [12].
Online since: December 2013
Authors: Pei Xin Shi, Ting Xue, De Fa Cai
These figures show that the consumption of China's energy is in the situation of "high-carbon consumption,", coupled with the number of fossil fuels accounted for 92% of the total energy, of which the coal accounted for 68%, 78% of the production of electricity depends on the coal-fired, meanwhile, the accelerated development of the six large energy-intensive industries (energy, automobile, steel, transport, chemicals, building materials) makes China become a typical representative of the "high-carbon economy".
In 2007, the government promulgated the "National Climate Change Programmer", it makes china become the first country which develops the programs to address climate change in developing countries, simultaneously, and the program defined the objectives, basic principles, key areas and policy measures to address climate change in 2010.
Carbon Tax Regulation Design Low Carbon Economy development is a systematic engineering, which should build up social regulation system of low carbon emissions.
In 2007, the government promulgated the "National Climate Change Programmer", it makes china become the first country which develops the programs to address climate change in developing countries, simultaneously, and the program defined the objectives, basic principles, key areas and policy measures to address climate change in 2010.
Carbon Tax Regulation Design Low Carbon Economy development is a systematic engineering, which should build up social regulation system of low carbon emissions.
Online since: May 2014
Authors: Dong Nyung Lee, Heung Nam Han
The Cube Recrystallization-Texture Related Component in The β-Fiber Rolling-Texture FCC Metals
Dong Nyung Lee1, a and Heung Nam Han1,b
1Department of Materials Science and Engineering & RIAM, Seoul National University, Seoul National University, Gwanak-ro 1, Seoul 151-744, Korea
adnlee@snu.ac.kr, bhnhan@snu.ac.kr
Keywords: Fcc metals, rolling texture, recrystallization texture, strain-energy-release-maximization.
Hong, Key Eng.
Hong, Key Eng.
Online since: January 2015
Authors: Sergei Bovteev, Marina Petrochenko
For this reason the parameter "time" is considered as one of key operated parameters of the project (along with the scope, cost and quality) [9, 10].
According to some materials the main reasons of the interfering application of this method in practice of construction projects, are the need of the explanation in "unknown language", initial prescribing by the Ministry of Defence of the USA of a method for big systems, sometimes unwillingness of the management to know the truth [5].
Combination of project cost forecasts in earned value management (2011) Journal of Construction Engineering and Management, No.137 (11), pp. 958-966
According to some materials the main reasons of the interfering application of this method in practice of construction projects, are the need of the explanation in "unknown language", initial prescribing by the Ministry of Defence of the USA of a method for big systems, sometimes unwillingness of the management to know the truth [5].
Combination of project cost forecasts in earned value management (2011) Journal of Construction Engineering and Management, No.137 (11), pp. 958-966
Online since: May 2014
Authors: Michel Potier-Ferry, Kekeli Kpogan
The elastic constants of the material are E (the Young’s modulus) and (the Poisson’s ratio).
Numerical examples Let us consider a plate made of material whose elastic constants are the Young's modulus E = 210GPa, and Poisson's ratio = 0.3.
Table 2 Dependence of and the wavelength on the global traction Global traction 10 20 50 80 Case of center-waves defects 0.11 0.21 0.51 0.81 amplitude 11.4 9.51 6.01 3.25 wavelength 981.74 872.66 785.4 714 Case of edge-waves defects 0.14 0.25 0.56 0.86 amplitude 12.04 10.63 5.99 2.80 wavelength 981.74 872.66 785.4 714 The global traction plays a key role in rolling process.
Potier-Ferry, Computing finite rotations of shells by an asymptotic-numerical method, Computer Methods in Applied Mechanics and Engineering. 175 (1999) 71-85.
Numerical examples Let us consider a plate made of material whose elastic constants are the Young's modulus E = 210GPa, and Poisson's ratio = 0.3.
Table 2 Dependence of and the wavelength on the global traction Global traction 10 20 50 80 Case of center-waves defects 0.11 0.21 0.51 0.81 amplitude 11.4 9.51 6.01 3.25 wavelength 981.74 872.66 785.4 714 Case of edge-waves defects 0.14 0.25 0.56 0.86 amplitude 12.04 10.63 5.99 2.80 wavelength 981.74 872.66 785.4 714 The global traction plays a key role in rolling process.
Potier-Ferry, Computing finite rotations of shells by an asymptotic-numerical method, Computer Methods in Applied Mechanics and Engineering. 175 (1999) 71-85.
Online since: June 2015
Authors: Qun Hui Wang, Hong Zhi Ma, Ying Qun Ma, Ru Xuan Niu, Bo Yue, Yu Fei Yang
Environmental Risk Assessment and Environmental Management of Waste Organic Solvents in Electronics industry
Ruxuan NIU1a, Yingqun MA1b, Qunhui WANG1, 2c, Bo YUE3d, Yufei YANG3e, Hongzhi MA1f
1 Civil and Environmental Engineering Scholl, University of Science and Technology Beijing, Beijing 100083, China
2 Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
3 Chinese Research Academy of Environmental Science, Beijing 100021, China
anrx1987@163.com bmayq0922@163.com cwangqh59@sina.com (corresponding author) dyuebo@craes.org.cn ecqyyf@163.com fmhz527@sina.com
Keywords: Electronics industry; Waste organic solvents; Environmental risk assessment; Environmental management;
Abstract.
Solid wastes are mainly included waste reagent bottle containers, waste ink tank, waste packaging materials, factory office waste, wastewater treatment sludge, waste silicon slag, waste glass, liquid crystal cell waste, waste resin powder, scrap circuit boards, electronic components waste, scrap tin slag, paint residues, etc.
Solid wastes are mainly included waste reagent bottle containers, waste ink tank, waste packaging materials, factory office waste, wastewater treatment sludge, waste silicon slag, waste glass, liquid crystal cell waste, waste resin powder, scrap circuit boards, electronic components waste, scrap tin slag, paint residues, etc.
Online since: July 2011
Authors: V.S. Lysenko, A.O. Podolian, V.V. Kuryliuk, A.B. Nadtochiy, S.V. Kondratenko, O.A. Korotchenkov, Yu.N. Kozyrev, V.K. Sklyar, M.Yu. Rubezhanska
Lysenko3,g
1Faculty of Physics, Taras Shevchenko Kyiv National University, Kyiv 01601, Ukraine
2 Institute of Surface Chemistry, National Academy of Sciences of Ukraine, Kyiv 03680, Ukraine
3 Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, Kyiv 03028, Ukraine
agogi@univ.kiev.ua, bkuryluk@univ.kiev.ua, cnadt@gala.net, dkondr@univ.kiev.ua, eolegk@univ.kiev.ua, fkozyrev@iop.kiev.ua, gLysenko@lab15.kiev.ua
Key words: Ge/Si nanoislands, oxide layer, photovoltage decay.
Introduction Germanium nanostructures on silicon surfaces offer a great simplicity in the bandgap engineering and compatibility with Si-based integrated circuits, and they have been widely used in various systems, including electronic and optoelectronic devices as well as solar cells [1-3].
It is well known that in the heteroepitaxy of materials with a large lattice mismatch to the substrate, such as SiGe alloys on Si, the nucleation of three-dimensional (3D) islands on a smooth surface of the wetting layer is termed by the Stranski-Krastanow growth mode.
Introduction Germanium nanostructures on silicon surfaces offer a great simplicity in the bandgap engineering and compatibility with Si-based integrated circuits, and they have been widely used in various systems, including electronic and optoelectronic devices as well as solar cells [1-3].
It is well known that in the heteroepitaxy of materials with a large lattice mismatch to the substrate, such as SiGe alloys on Si, the nucleation of three-dimensional (3D) islands on a smooth surface of the wetting layer is termed by the Stranski-Krastanow growth mode.