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Online since: January 2012
Authors: Xi Ming Li
Continuous Element Determination of Barium-Calcium Based on Single Sample of Ferroalloy Series Li Xi-Ming1, a 1Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, P.R.China aliximing@mail.ustc.edu.cn Keywords: Bath analysis; Alkaline-Earth Metal Determination; Barium-Calcium-Silicon Ferroalloy Abstract.
Multifunctional, it is capable of deoxidizing, slagging and purifying, which makes it play an essential role in the quality control of steel material.
In the determination process of ferroalloy, two elements--barium & calcium are the key ones with direct relationship to diverse characteristic of the agent which need to be considered primarily.
These complex ferroalloys, which are largely used in the high duty production of critical steel mechanical engineering components, have given many good properties such as low temperature strength and stress corrosion cracking resistance to the steel which they have been treated with.
[2] Vogel I., Kucharkowski R., Krabbes G., Titrimetric determination of the stoichiometric composition of ceramic high-temperature superconducting materials, Fresenius J.
Online since: March 2017
Authors: Qi Lin Deng, Wei Fu, Hong Yuan Fang
State Key Lab of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, PR China 2.
School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China afw9106@163.com, bdengqilin@sjtu.edu.cn, chyfang@hit.edu.cn *Corresponding author: Deng Qilin (dengqilin@sjtu.edu.cn) Keywords: directionally solidified blades, laser cladding repair.
The directional solidification technology is established and improved during the development of superalloy, which is used to eliminate the lateral grain boundary, even all grain boundaries, generated during crystallization process in order to improve the high-temperature performance and unidirectional mechanical property of material [1~16].
Solidification and Casting of Metals.The Metals Society,Book 192.London,1979,3 [12] Trivedi R.Interdendriticspacing:PartII.A comparison of theory and experiment.Metallurgical Transactions,1984,15A:977-9821 [13] KurzW, Fisher D J.Fundamentals of Solidification.Trans Tech Publications, 1984 [14] M Gäumann,S.Henry,F.Cléton,etc.Epitaxial laser metal forming:analysis of microstructure formation.Materials Science and Engineering,1999,A271:232-241 [15] M Gäumann,C.BEZENÇON,P.CANALIS,etc.Single-crystal Laser Deposition of Superalloys: Processing-microstructure Maps.Acta Mater, 2001,49:1051-1062 [16] Hunt J.D.Steady state columnar and equiaxed growth of dendrites and eutectic.
Online since: February 2017
Authors: Kui Xian Wei, Ke Qiang Xie, Zhan Wei Liu, Wen Hui Ma, Li Cong Zheng
Thermodynamic Research of S-H2O System in Sodium Aluminate Solution Zheng Licong1, 2, a, Liu Zhanwei1, 2, b, Xie Keqiang1, 2, c *, Ma Wenhui1, 2, d, Wei Kuixian1, 2, e 1The National Engineering Laboratory for Vacuum Metallurgy and State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China 2Key Laboratory for Nonferrous Vacuum Metallurgy of Yunnan Province and Engineering Research Center for Silicon Metallurgy and Silicon Materials of Yunnan Provincial Universities, Kunming University of Science and Technology, Kunming 650093, China azhenglicongydd@163.com, bzhanwei_liu@126.com, cxkqzhh@sina.com, dmwhsilicon@126.com, ekxwei2008@hotmail.com Keywords: High sulfur bauxite, Sodium aluminate solution, S-H2O system, ΔGTθ, thermodynamics Abstract.
In order to discuss the order of oxidizing reaction to different low-valence generating the same material, the reactions are classified by different resulting products containing sulfur as shown in Fig. 4 (a)-(d).
Online since: March 2010
Authors: Chun Jian Yu, Xiao Diao Huang, Cheng Gang Fang, Ke Fang Dai
Damping can be divided by formation mechanism as follows: material damping, viscous damping, joints damping and damping of Coulomb friction and so on [3].
Material damping is caused by internal friction of metal and viscoelastic high polymer material of largr damping, the cost of which is high and easy to be disturbed by external environment, such as vibration frequency and temperature [4].
BE2009167) and Jiangsu Key Laboratory of Digital Manufacturing for Industrial Equipment and Control Technology (Grant No.
[3] Depei DAI, in: The engineering applications of damping technique, chapter, 3, Tsinghua University Press (1991), in Chinese
[10] Chunjian Yu, Xiaodiao Huang: submitted to tool engineering (2008), in Chinese.
Online since: April 2016
Authors: Rong Liu, Yi Fan Xu, Ling Chen Ji, Fei Ye, Hao Guan, Ming Yang
Low-temperature Selective Catalytic Reduction with NH3 Over MnOx-CeO2 Catalysts Supported on Nano Tetragonal Zirconia Rong Liu1,2,a, Yi-fan Xu1,2, Fei Ye1,2, Ling-chen Ji1,2, Hao Guan1,2 and Ming Yang3 1Jangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, School of Geography Science, Nanjing Normal University, Nanjing 210023, China 2Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Controlling, School of Geography Science, Nanjing Normal University, Nanjing 210023, China 3School of Mechanical Engineering, Nanjing Institute of Technology, Nanjing 211167, China a15651909701@163.com Keywords: Tetragonal-phase zirconium, MnOx-CeO2/t-ZrO2 catalysts, Denitration activity Abstract.
[10] YAN Zhi-yong, HU Jian-fei, XU Hong: Journal of Chinese Society of Power Engineering, 2011, 31(1):58-63
[12] GUAN Hao, GONG Xiang-jun, LIU Rong, YANG Liu: Chinese Journal of Material Research, 2014, 28(2):139-143
Online since: May 2012
Authors: Dian Wen Liu, Shu Ming Wen, Xiao Lin Zhang, Shao Jun Bai, Jian Jun Fang, Bing Liang Xu, Zhi Cong Wei, Wen Bin Zhang
Sulfidisation Promotion Effect of Ammonium Sulfate on Flotation of Copper Oxide Ore Dianwen Liu1,2,3,a, Jianjun Fang1,2,3,b, Xiaolin Zhang1,2,3,c, Shuming Wen1,2,3,d*, Zhicong Wei1,2,3,e, Shaojun Bai1,2,3,f, Bingliang Xu1,2,4,g and Wenbin Zhang1,2,3,h 1Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China 2Engineering Research Centre for High-Efficient Utilization of West-Region Mineral Resources of Chinese Ministry of Education, Kunming, Yunnan 650093, China 3State Key Laboratory Breeding Base of Complex Nonferrous Metal Resources Cleaning Utilization, Kunming, Yunnan 650093, China 4 Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China aldwkust@126.com, bruiyuanju@126.com, cxiaolin6001@sina.com, dshmwen@126.com(Corresponding Author), e13577100486@126.com, fbaishaojun830829@126.com, g81894590@qq.com hzwbkust@163.com Keywords: Sulfidisation promotion
Materials and Method Ore sample Ore sample 1 One sample used in the study is malachite, CuCO3·Cu(OH)2, natural pure mineral, peacock green crystal, obtained as high grade lumps from Tangdan copper deposit, Dongchuan district, Kunming city, southwest of China, was crushed, hand sorted, and crushed again to -16 mesh, then ground to -100µm in an agate mortar.
Online since: May 2012
Authors: Min Liu, Kai Liu, Qing Gu, Ying Chen
Key words: pH; fermentation; hydrogen production; acid production; TOC Abstract: Hydrogen production with waste water can reduce pollution and produce clean energy at the same time.
The essence of biohydrogen production by anaerobic fermentation was the fermentation of organic matter by hydrogen producing bacteria, decomposed organic material into organic acids while releasing H2 and CO2.
Materials and Methods Fig.1 Experimental facility 1-circulating water; 2-acidication pump; 3-base pump; 4-agitator; 5-sampling pump; 6-sampling aperture; 7-computer; 8-gas collection sack; 9-base; 10-batch; 11-acid Reactor and seed sludge The reactor was automatic fermentor (Switzerland, Bioengineering, as Fig.1), significant volume was 3.7L, with automatic control equipment, according to the monitoring pH, it could add acid or alkali automatically. 1L efficient anaerobic acid-genesis fermentation sludge is used as the seed sludge to cultivate, SS=28.4g/l,VSS=19.37g/l.
Journal of Sichuan University (Engineering science edition). 41(2009) 86-90
Environmental Engineering.1(2008) 136-138
Online since: June 2010
Authors: Hai Yan Tan, Li Bin Zhu, Ji You Gu, Yan Hua Zhang, Ying Feng Zuo, Bo Han
Preparation of Water-Resistance Plywood with UF Resin Modified by Emulsifiable Polyisocyanate Libin Zhua , Bo Han b , Jiyou Gu c , Yanhua Zhangd , Haiyan Tane, Yingfeng Zuof College of Material Science and Engineering, Northeast Forestry University, Harbin, 150040,P.
Experimental Materials.
Used XPS analysis the bonding interface, the chemical bonding from by isocyanate adhesive reacts with UF resin and wood was the key to increase bonding strength.
Forestry Engineering, (2001), 28(3)
Online since: September 2011
Authors: Shi Ru Jia, Si Jun Yue, Jin Yao, Yu Jie Dai
Nutritional Analysis of the Wild and Liquid Suspension Cultured Nostoc flagelliforme and Antitumor Effects of the Extracellular Polysaccharides1 Sijun Yue, Shiru Jia, Jin Yao, Yujie Dai Key Laboratory of Industrial Microbiology Ministry of Education, Tianjin University of Science and Technology, No. 29 of the 13th Avenue, TEDA, Tianjin, P.R.
As a result of this prohibition, some of the processes in which N. flagelliforme is utilized as an indispensable material are severely baffled.
Materials and Methods Microorganisms.Colonies of Nostoc flagelliforme that naturally grew in the field were collected from the eastern side of the Helan Mountain in Yinchuan, Ningxia, China.
Characterization of Exocellular Polysaccharide of Nostoc flagelliforme in Liquid Suspension Culture Biotchnology and Bioprocess Engineering, 2007, 12(3): 271−275
Characterization of Exocellular Polysaccharide of Nostoc flagelliforme in Liquid Suspension Culture Biotchnology and Bioprocess Engineering, 2007, 12(3): 271−275
Online since: September 2013
Authors: Zai Lin Piao, Dong Ming Tan, Zhe Yuan Wang, Wei Gang Zheng
The system combines advanced 3G data transmission,professional engineer support in the remote background with collecting information ,it is greatly improved.
As the literature [8] 3.2 The design of navigation algorithm Generally the power grid is a tree structure, with both ring and network structure, so route selection is particularly important thing,bacause a reasonable route choice could shorten the repair time and be convenient deployment of human and material resources to improve the reliability .
Step four: base the order that after the weighted, combination of the polygon, and according the polygon overlay,balance weight ratio,take a combination of at least duplicate lines, is the optimization model of path, the key point is to control the size of the polygon,we seem weight value in the same line as the basis,with a minimum area of polygon as the core,to do the calculation on the adjacent polygons, comparison showed that the total line length, finding optimal path.
Design of wireless real-time video monitoring system based on 3G[J].Computer Engineering and Design,2011,(12)
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