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The Direct Oxidation of CO on the Highly Active Pt-Skin Pt3Ni(111) Surface: a First Principles Study
Online since: February 2011
Authors: Zong Xian Yang, Xiao Hu Yu, Zhan Sheng Lu, Xian Qi Dai
The direct oxidation of CO on the highly active Pt-skin Pt3Ni(111) surface: A first principles study
Zongxian Yang1, a, Xiaohu Yu2,b, Zhansheng Lu1,c, Xianqi Dai1,d
1College of Physics and Information Engineering, Henan Normal University, Xinxiang, Henan 453007, China
2State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
ayzx@htu.cn, byuxiaohu950203@126.com, cluzhansheng1688@126.com, dxqdai@htu.cn
Keywords: CO, oxidation, Pt-skin Pt3Ni(111), first principles, DFT
Abstract.
Understanding how the Pt-based compounds increase CO tolerance will help design better catalytic materials.
The top three layers of the slab and adsorbates are relaxed until the forces on the atoms are less than 0.03 eV/Ǻ, while the atoms in the bottom three layers are fixed at the optimized geometry of the bulk material to mimic the bulk.
Understanding how the Pt-based compounds increase CO tolerance will help design better catalytic materials.
The top three layers of the slab and adsorbates are relaxed until the forces on the atoms are less than 0.03 eV/Ǻ, while the atoms in the bottom three layers are fixed at the optimized geometry of the bulk material to mimic the bulk.
Online since: November 2010
Authors: Jie Liu, Yan Jun Li, Ze Honɡ Wanɡ, Xing Guo Su, Hong Qian Yuan, Xiao Ge Xu
Shear Flocculation and Flotation of Hematite
Xingguo SU 1,a, Yanjun LI 1,a, Jie LIU 1,b, Hongqian YUAN 1,c, Zehong WANG 1,d Xiaoge XU 2,a
1School of Resources and Civil Engineering,
Northeastern University, Shenyang, Liaoning, 110004, China
2Qidashan Iron Mine,
Anshan Iron and Steel Group Corporation, Anshan, Liaoning, 114043, China
a liyanjun@mail.neu.edu.cn; bliujie@mail.neu.edu.cn;
cyuanhongqian627@126.com; dwangzehong@mail.neu.edu.cn;
Key words: Hematite, Sodium slkylsulfonate, Shear Flocculation, Flotation
Abstract.
The chemical analysis for materials in this test were shown from table 1.
[6] Wei Dezhou: Solid material separation, (Metallurgical Industry Press, Beijing 2000)
The chemical analysis for materials in this test were shown from table 1.
[6] Wei Dezhou: Solid material separation, (Metallurgical Industry Press, Beijing 2000)
Online since: December 2013
Authors: Anna Yu. Godymchuk, Elena Yunda, Svetlana Senatova, Natalia Kosova, Denis V. Kuznetsov
This increase is caused by a high market share of the existing nanomaterials, as well as by constant development of new materials and applications [1].
Surface acid-base characteristics which are identified by measuring the pH value (value of acidity of the environment) play a key role in sorption activity of the surface [19].
In this project, two types of nanoparticle samples were examined: electroexplosive zinc nanopowder (Zn, surface area 13.58 m2/g, manufacturer – Advanced Powder Technologies, LLC, Russia) and zinc oxide nanopowder manufactured by using plasma-chemical synthesis (ZnO, surface area 26 m2/g, manufacturer – Nanostructured & Amorphous Materials, Inc., USA).The phase composition of nanopowders was determined by X-ray phase analysis by a powder diffractometer XRD-7000 (Shimadzu).
Industrial production quantities and uses of ten engineered nanomaterials for Europe and the world.
Ecotoxicity of selected nano-materials to aquatic organisms.
Surface acid-base characteristics which are identified by measuring the pH value (value of acidity of the environment) play a key role in sorption activity of the surface [19].
In this project, two types of nanoparticle samples were examined: electroexplosive zinc nanopowder (Zn, surface area 13.58 m2/g, manufacturer – Advanced Powder Technologies, LLC, Russia) and zinc oxide nanopowder manufactured by using plasma-chemical synthesis (ZnO, surface area 26 m2/g, manufacturer – Nanostructured & Amorphous Materials, Inc., USA).The phase composition of nanopowders was determined by X-ray phase analysis by a powder diffractometer XRD-7000 (Shimadzu).
Industrial production quantities and uses of ten engineered nanomaterials for Europe and the world.
Ecotoxicity of selected nano-materials to aquatic organisms.
Online since: July 2018
Authors: Markus Brandmeier, Jörg Franke, Norbert Eckl, Daniel Weberling
The functionalities of the existing systems include analysis functions such as various diagram types, trend analyzes and the formation of company key figures. [3] The software systems available on the market are able to archive and analyze energy data and to visualize them.
In addition to the match of process and energy data, benchmarks and key figures can be integrated into the data model, in order to determine the resource and energy efficiency of the manufacturing process of a product.
Other process steps are not executed for every product (repair, special test, final assembly) or the energy consumption is not assignable to single products (packaging and material supply).
Fensel, “Knowledge engineering: Principles and methods,” Data & Knowledge Engineering, vol. 25, no. 1-2, pp. 161–197, 1998
Rogalski, “Ontology Supported Intelligent Energy Management System in Buildings,” in The International Conference on Industrial Engineering and Business Management (ICIEBM) 2010: Proceedings, A.
In addition to the match of process and energy data, benchmarks and key figures can be integrated into the data model, in order to determine the resource and energy efficiency of the manufacturing process of a product.
Other process steps are not executed for every product (repair, special test, final assembly) or the energy consumption is not assignable to single products (packaging and material supply).
Fensel, “Knowledge engineering: Principles and methods,” Data & Knowledge Engineering, vol. 25, no. 1-2, pp. 161–197, 1998
Rogalski, “Ontology Supported Intelligent Energy Management System in Buildings,” in The International Conference on Industrial Engineering and Business Management (ICIEBM) 2010: Proceedings, A.
Online since: September 2013
Authors: Rui Nie, Da Wei Li, Jin Hao Qiu, Hong Li Ji
Two New Flow Control Technologies Based on Vibration
Li Da Wei, Qiu Jin Hao*, Nie Rui,Ji Hong Li
State Key Laboratory of Mechanics and Control of Mechanical Structures
(College of Aerospace Engineering,
Nanjing University of Aeronautics & Astronautics, Nanjing, 210016, China.)
Corresponding author: qiu@nuaa.edu.cn Key words: rotational vibration, sinusoidal vibration, lift coefficient, drag coefficient Abstract:This paper aims at study the technology of flow active control to increase the wing lift and weaken the wing drag by using the method of fluid mechanics.
It can reach to 0.003c with the development of flexible skin and smart material.
As a passive control, the bump1 in the ref. 12 is easier to achieve in the engineering application which the smooth transition is not required.
European Congress on Computation Methods in Applied Science and Engineering, (2004)
Corresponding author: qiu@nuaa.edu.cn Key words: rotational vibration, sinusoidal vibration, lift coefficient, drag coefficient Abstract:This paper aims at study the technology of flow active control to increase the wing lift and weaken the wing drag by using the method of fluid mechanics.
It can reach to 0.003c with the development of flexible skin and smart material.
As a passive control, the bump1 in the ref. 12 is easier to achieve in the engineering application which the smooth transition is not required.
European Congress on Computation Methods in Applied Science and Engineering, (2004)
Online since: December 2010
Authors: Guo Xiang Yang, Fa Quan Wu, Jin Yu Dong, Dong Wang
Engineering geology 72(2004)1-8
].
Judging standard on swelling potential of swelling rock has not been unified, which is inconvenient to engineering construction.
So the relationship between then is not linear; generally speaking, if the free expansibility of the material is more than 40% and the montmorillite content is more than 8~10%[[]Yong-xin QU, Zhi-lan WU, Xiao-lan XU. et.c, Study of swelling rocks in east China, Weak rocks engineer, 1991,(1-2):1~13 ].
The engineering classification of mud rock and its rapid forecast of swelling power.
Fig.7 the relationship between swelling force and non-loaded expansive ratio Comprehensive criterion of swelling potential Engineering properties of swelling rock are mainly imbibition, water loss shrinking and intensive disintegrative, the influencing factor is the content of minerals.
Judging standard on swelling potential of swelling rock has not been unified, which is inconvenient to engineering construction.
So the relationship between then is not linear; generally speaking, if the free expansibility of the material is more than 40% and the montmorillite content is more than 8~10%[[]Yong-xin QU, Zhi-lan WU, Xiao-lan XU. et.c, Study of swelling rocks in east China, Weak rocks engineer, 1991,(1-2):1~13 ].
The engineering classification of mud rock and its rapid forecast of swelling power.
Fig.7 the relationship between swelling force and non-loaded expansive ratio Comprehensive criterion of swelling potential Engineering properties of swelling rock are mainly imbibition, water loss shrinking and intensive disintegrative, the influencing factor is the content of minerals.
Online since: August 2012
Authors: Cui'e Wen, James Wang, Arne Biesiekierski
Table 1: Comparison of Young’s moduli (E) of common implant materials [1,4,12,13].
[11] Huiskes, R., Weinans, H., Rietbergen, B., The relationship between stress shielding and bone resorption around total hip stems and the effects of flexible materials.
[31] Wen, C.E., Yamada, Y., Shimojima, K., Chino, Y., Hosokawa, H., Mabuchi, M., Novel titanium foam for bone tissue engineering.
[33] Kieback, B., Neubrand, A., Riedel, H., Processing techniques for functionally graded materials.
Key Eng Mater 240-242 (2003) 547-550.
[11] Huiskes, R., Weinans, H., Rietbergen, B., The relationship between stress shielding and bone resorption around total hip stems and the effects of flexible materials.
[31] Wen, C.E., Yamada, Y., Shimojima, K., Chino, Y., Hosokawa, H., Mabuchi, M., Novel titanium foam for bone tissue engineering.
[33] Kieback, B., Neubrand, A., Riedel, H., Processing techniques for functionally graded materials.
Key Eng Mater 240-242 (2003) 547-550.
Online since: March 2014
Authors: Luqman Chuah Abdullah, Russly Abdul Rahman, Maryam Jokar
Journal of Food Engineering 2009:93(1):1-6
Sequential Assembly of Nanocomposite Materials.
Journal of Food Engineering 2009:90:531-539
Journal of Food Engineering 2004:63:9-13
Materials Chemistry and Physics 2008:108:61-66.
Sequential Assembly of Nanocomposite Materials.
Journal of Food Engineering 2009:90:531-539
Journal of Food Engineering 2004:63:9-13
Materials Chemistry and Physics 2008:108:61-66.
Online since: October 2011
Authors: Harwinder Singh, J.S. Khamba
Utilization of Advanced Manufacturing Technologies in an Indian Manufacturing Enterprise
1Harwinder Singh and2 J S Khamba
1Department of Mechanical Engineering, Guru Nanak Dev Engineering College,
Gill Road, Ludhiana. 141006, Punjab, India.
2Department of Mechanical Engineering, University College of Engineering,
Punjabi University, Patiala. 147002, Punjab, India.
1Email: harwin75@rediffmail.com
Keywords- advanced anufacturing technologies; utilization; manufacturing organization.
Managers in manufacturing organizations are experiencing the emergence of AMTs such as-computer-aided design (CAD), computer-aided manufacturing (CAM), computer-aided process planning (CAPP), robotics (RO) and soft technologies such as material requirement planning (MRPI/II), KAIZEN, Just in time (JIT) [7].
· Innovative engineers to utilize the available technologies by modifying the same to suit the local requirements
CONCLUSIONS Advanced manufacturing technologies have been emerged as a key competitive strategy for business organizations in the global marketplace.
Omurtag, “Technology acquisition and utilization model (TAUM)”, Computers and Industrial Engineering, Vol. 33, Nos. 1-2, 1997, pp. 7-10
Managers in manufacturing organizations are experiencing the emergence of AMTs such as-computer-aided design (CAD), computer-aided manufacturing (CAM), computer-aided process planning (CAPP), robotics (RO) and soft technologies such as material requirement planning (MRPI/II), KAIZEN, Just in time (JIT) [7].
· Innovative engineers to utilize the available technologies by modifying the same to suit the local requirements
CONCLUSIONS Advanced manufacturing technologies have been emerged as a key competitive strategy for business organizations in the global marketplace.
Omurtag, “Technology acquisition and utilization model (TAUM)”, Computers and Industrial Engineering, Vol. 33, Nos. 1-2, 1997, pp. 7-10
Online since: December 2012
Authors: Huai Fa Wang, Run Quan Yang, Jian Chao Liu
Joshi, CFD simulations of bubble column reactors: 1D, 2D and 3D approach, Chemical Engineering Science. 60 (2005) 6733-6746
Yarbro, Three-dimensional simulation of a three-phase draft-tube bubble column, Chemical Engineering Science. 55 (2000) 3261-3273
Becker, Modeling and simulation of the dynamic flow behavior in a bubble column, Chemical Engineering Science. 56 (2001) 1737-1747
Wagner, Hydrodynamic simulations of laboratory scale bubble columns fundamental studies of the Eulerian–Eulerian modeling approach, Chemical Engineering Science. 54 (1999) 5091-5099
Eigenberger, Applicability of the Standard k-ε turbulence model to the dynamic simulation of bubble columns: part I detailed numerical simulations, Chemical Engineering Science. 54 (1999) 2273-2284
Yarbro, Three-dimensional simulation of a three-phase draft-tube bubble column, Chemical Engineering Science. 55 (2000) 3261-3273
Becker, Modeling and simulation of the dynamic flow behavior in a bubble column, Chemical Engineering Science. 56 (2001) 1737-1747
Wagner, Hydrodynamic simulations of laboratory scale bubble columns fundamental studies of the Eulerian–Eulerian modeling approach, Chemical Engineering Science. 54 (1999) 5091-5099
Eigenberger, Applicability of the Standard k-ε turbulence model to the dynamic simulation of bubble columns: part I detailed numerical simulations, Chemical Engineering Science. 54 (1999) 2273-2284