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Online since: February 2012
Authors: Yue Zhang, Chun Hui Gao, Wei Li, Cheng Guo Jia
A Practical Synthetic Method for 7-ATCA
Chunhui Gao1,a, Yue Zhang1,b, Wei Li2,c and Chengguo Jia2,d
1School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
2Department of R & D, Brant Pharmaceutical Co., Ltd., Shijiazhuang 052260, China
achgao1986@163.com, b*yuezhang@hebust.edu.cn, cliweihb@gmail.com, dcgjia@hotmail.com
Keywords: GCLE, 4-methyl-5-thiazolaldehyde, trichloroacetic acid, PGA
Abstract. 7-ATCA is a major intermediate of Cefditoren pivoxil.
As shown in Table 1, a great number of substrates could obtain high yield and ratio of Z-isomer, but excrescent materials would pollute environment.
Feng: Chinese Journal of New Drugs.
As shown in Table 1, a great number of substrates could obtain high yield and ratio of Z-isomer, but excrescent materials would pollute environment.
Feng: Chinese Journal of New Drugs.
Online since: November 2012
Authors: Chao Long Li, Li Ping Xiong, Hong Liu, Li Ting Xiong, Wei Wang
Tribological Study of Xanthate-containing Acetic Ester as Additives in Hydrogenated Oil
Li Chaolong 1, Xiong Liping1,Liu Hong1, Xiong Liting2, Wang Wei1
1School of Basic Science, Eastchina Jiaotong University, Nanchang 330013, PR China
2School of computer science and software engineering, Nanchang Institute of Technology, Nanchang 330013, PR China
Keywords: Acetic ester derivative; additive; hydrogenated oil; tribological mechanism
Abstract.A novel ester derivative, dodecyl xanthate acetic dodecyl xanthate ester(DXAD) was synthesized and it’s tribological behaviors as additives in hydrogenated oil, were evaluated using a four-ball tester.
In the paper, we use xanthate as raw material, to synthesis a kind of xanthate-containing ester derivative, which accord with biodegradable request of lubricating oil additive.
The protective film formed during sliding processes contributed to the increase in the wear resistance and friction reduction Acknowledgements The work reported here were supported financially by the Chinese Natural Science Foundation (No:21063007,21163006); Jiangxi Provincial Natural Science Foundation (No:2010GZH0030); Jiangxi Provincial Science and Technology Department Projects of China (No:2010BGB00602); Jiangxi Education Department Foundation of China (Grant No: GJJ10442).
References [1] He Zhongyi, Zhan Weiqiang, etal, Study of the synergistic effect of a triazine-dithiocarbamate derivative with TCP in vegetable oil, Journal of Synthesis Lubrication, 2005,21(4),287-297 [2] Milner J L, Phillips R L, Ozbalik N, et al.
In the paper, we use xanthate as raw material, to synthesis a kind of xanthate-containing ester derivative, which accord with biodegradable request of lubricating oil additive.
The protective film formed during sliding processes contributed to the increase in the wear resistance and friction reduction Acknowledgements The work reported here were supported financially by the Chinese Natural Science Foundation (No:21063007,21163006); Jiangxi Provincial Natural Science Foundation (No:2010GZH0030); Jiangxi Provincial Science and Technology Department Projects of China (No:2010BGB00602); Jiangxi Education Department Foundation of China (Grant No: GJJ10442).
References [1] He Zhongyi, Zhan Weiqiang, etal, Study of the synergistic effect of a triazine-dithiocarbamate derivative with TCP in vegetable oil, Journal of Synthesis Lubrication, 2005,21(4),287-297 [2] Milner J L, Phillips R L, Ozbalik N, et al.
Online since: August 2013
Authors: Gong Di Xu, Jin Zhao Hu, Zhao Hui Huang, Da Dong Zhan, Chong Li, Ji Hua Chen
College of Science and Engineering ,Qiongzhou University,Sanya, Hainan, 572022, P.
College of Environmental Science and Engineering, Donghua University, Shanghai 200051, P.
Wastewater material.
Journal of Environmental Management[J],2003,65,253-261 [3] Yang Gao,Liang Mao,Chi-yuan Miao,Pei Zhou,Jie-jun Cao,Yue-er Zhi ,Wan-jun Shi.
Science of the Total Environment[J],2010,408,3251-3260 [4] Bin Zhaoa,Urs Kreuter,Bo Li,Zhijun Ma, Jiakuan Chen, Nobukazu Nakagoshi.
College of Environmental Science and Engineering, Donghua University, Shanghai 200051, P.
Wastewater material.
Journal of Environmental Management[J],2003,65,253-261 [3] Yang Gao,Liang Mao,Chi-yuan Miao,Pei Zhou,Jie-jun Cao,Yue-er Zhi ,Wan-jun Shi.
Science of the Total Environment[J],2010,408,3251-3260 [4] Bin Zhaoa,Urs Kreuter,Bo Li,Zhijun Ma, Jiakuan Chen, Nobukazu Nakagoshi.
Online since: October 2012
Authors: Yin Bai, Yong Jiu Shi, Yuan Qing Wang, Jian Lei Zhai
The type of steel is Q235, and assuming that the meterial is elasto-plastic material, conforming Von Mises yield criterion and using the Prandtl.Reuss incremental relationship as the plastic constitutive relation.
(Eds), Proceeding of the Tenth International Symposium on Structural Engineering for Young Experts, Science Press, Beijing, 2008, pp. 1966-1969
Shi, Elasto-plastic stability bearing capacity calculation for K8 single-layer reticulated shells under fire conditions, Beijing University of Technology Journal
Zhou , Haishun Wang, Analysis of the influence of joint's rigidity on the ultimate bearing capacity of single-layer spherical reticulated shell, Advances Structure Engineering: Theory and Applications, Science Press, Beijing, 2006
Chen, Stability of reticulated shell structures, Science Press, Beijing, 1999 (in Chinese).
(Eds), Proceeding of the Tenth International Symposium on Structural Engineering for Young Experts, Science Press, Beijing, 2008, pp. 1966-1969
Shi, Elasto-plastic stability bearing capacity calculation for K8 single-layer reticulated shells under fire conditions, Beijing University of Technology Journal
Zhou , Haishun Wang, Analysis of the influence of joint's rigidity on the ultimate bearing capacity of single-layer spherical reticulated shell, Advances Structure Engineering: Theory and Applications, Science Press, Beijing, 2006
Chen, Stability of reticulated shell structures, Science Press, Beijing, 1999 (in Chinese).
Online since: May 2014
Authors: Song Jie Gong, Xue Mei Zhang
China is the world's largest spam victim, had been the foreign media as "spam, spam filtering hotbed." treatment costs huge human and material resources.
Programs Supported by Ningbo Natural Science Foundation (Grant No. 2013A610072).
Science Direct Computer Networks,2007,51( 10) : 2616-2630
An outlook on network hone-ypot[C]/ /Proc of International Conference on Computer Science and Service System. 2011: 48-52
Journal of Network and Computer Applications,2008,31( 4) : 966-985.
Programs Supported by Ningbo Natural Science Foundation (Grant No. 2013A610072).
Science Direct Computer Networks,2007,51( 10) : 2616-2630
An outlook on network hone-ypot[C]/ /Proc of International Conference on Computer Science and Service System. 2011: 48-52
Journal of Network and Computer Applications,2008,31( 4) : 966-985.
Online since: September 2013
Authors: Yi Tang, Guo Yan Ren, Guo Mei Ren
Introduction
Chongqing University of Science and Technology aims at fostering qualified talent, developing science and serving society.
Section II describes how the course is taught in the Chongqing University of Science and Technology, and in Section III typical projects are discussed in detail, Section IV contains the effect of teaching, Finally, Section V make conclusions.
The whole teaching material for this course include teaching courseware ( PPT file, contains graphic images ), some commonly used electrical animation courseware, a complete teaching plan, teaching syllabus, curriculum evaluation norm theory, practice teaching evaluation standard, PLC experimental guide books, PLC project design guide book and test paper database.
Effect Of Teaching Since 2004, we have 8 years of PLCs teaching practice on the undergraduate students after the Chongqing university of Science and Technology established through the incorporation of former Chongqing Polytechnic College and Chongqing Petroleum College.
“Engineering Education:Inovation Through Integration”,Journal of Engineering Education,Vol.82 Issue 1, pp..3-8, January 1993
Section II describes how the course is taught in the Chongqing University of Science and Technology, and in Section III typical projects are discussed in detail, Section IV contains the effect of teaching, Finally, Section V make conclusions.
The whole teaching material for this course include teaching courseware ( PPT file, contains graphic images ), some commonly used electrical animation courseware, a complete teaching plan, teaching syllabus, curriculum evaluation norm theory, practice teaching evaluation standard, PLC experimental guide books, PLC project design guide book and test paper database.
Effect Of Teaching Since 2004, we have 8 years of PLCs teaching practice on the undergraduate students after the Chongqing university of Science and Technology established through the incorporation of former Chongqing Polytechnic College and Chongqing Petroleum College.
“Engineering Education:Inovation Through Integration”,Journal of Engineering Education,Vol.82 Issue 1, pp..3-8, January 1993
Online since: January 2011
Authors: Shu Kun Cao, Li Song, Zhi Ming Sui, Chang Zhong Wu, Jia Jia
Introduction
With the development of science technology and the improvement of aesthetic awareness, people's requirements of mechanical products streamlined appearance are more and more high.
The dead material (containing chromium, nickel, molybdenum, manganese, titanium, vanadium, etc.) are often hard to process, so we should use extreme pressure or extreme pressure cutting oil emulsion.
The selection of free-form surface machining process parameters is that user input processing object description in the actual production and processing requirements, then reasonably free-form surface machining program can be obtained based on previous cutting tool material selection and the experience.
Acknowledgment The study is supported by Science and Technology Development Plan of Shandong Province (No. 2009GG10004027).
Journal of Northwestern Polytechnical University. vol. 24, No. 2, p. 255-259, 2006
The dead material (containing chromium, nickel, molybdenum, manganese, titanium, vanadium, etc.) are often hard to process, so we should use extreme pressure or extreme pressure cutting oil emulsion.
The selection of free-form surface machining process parameters is that user input processing object description in the actual production and processing requirements, then reasonably free-form surface machining program can be obtained based on previous cutting tool material selection and the experience.
Acknowledgment The study is supported by Science and Technology Development Plan of Shandong Province (No. 2009GG10004027).
Journal of Northwestern Polytechnical University. vol. 24, No. 2, p. 255-259, 2006
Online since: May 2011
Authors: Guo Qing Yu, Gang Feng Gao, Xin Feng Lin
Identification of Building Envelope Overall Coefficient of Heat Transfer using Recursive Least Squares Algorithm
Guoqing Yu1,a, Gangfeng Gao2,b and Xinfeng Lin1,c
1School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China
2Shanghai KST Energy Conservation Technology Co., Ltd, Shanghai, 201108, China
aguoqing.yu@163.com, bgangfeng_gao@kst-china.com, clin54xin71feng0@163.com
Keywords: Identification, Recursive Least Squares Algorithm, Overall Coefficient of Heat Transfer, Building Envelope.
Acknowledgement The research is supported by National Natural Science Foundation of China (50976073) and by Leading Academic Discipline Project of Shanghai Municipal Education Commission, Project Number: J50502.
Meng, Application of heat transfer coefficient for Building Field Detection, Journal of New Building Materials, 59-61, 2004 (In Chinese)
Acknowledgement The research is supported by National Natural Science Foundation of China (50976073) and by Leading Academic Discipline Project of Shanghai Municipal Education Commission, Project Number: J50502.
Meng, Application of heat transfer coefficient for Building Field Detection, Journal of New Building Materials, 59-61, 2004 (In Chinese)
Online since: December 2011
Authors: Jin Wei Yu
Solution components: TPD-30-MS 100±15ml/L
Operating conditions:a, temperature - 70~74˚C b, processing time - 5-9min
c, PH - 7.2 (7.0~7.4) d, technology equip - swing, pump, filtration, heating, vat material is PVDF or PTFE, cooling, automatic add system, vibration system.
Acknowledgements This work is supported by Shandong Province International Science Technology Cooperation Program(No.201013)and Shandong Province Weifang Science Technology Development Program(No.201001044) References [1] Ho C E,Yang S C,Kao C R.Journal of electronic material, 2007,18 (1-3) :155-174
Acknowledgements This work is supported by Shandong Province International Science Technology Cooperation Program(No.201013)and Shandong Province Weifang Science Technology Development Program(No.201001044) References [1] Ho C E,Yang S C,Kao C R.Journal of electronic material, 2007,18 (1-3) :155-174
Online since: January 2012
Authors: Hu Tian Feng, Qin Guo, Yu Lin Wang, Ying Li
Establishment of Cutting Tools’ Processing Angle Model in Whirling Milling
Qin Guo, Yu-Lin Wang ,Hu-Tian Feng* and Ying Li
School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, China
e-mail: fenght@mail.njust.edu.cn (Hu-Tian Feng); cinderella982@gmail.com(Qin Guo)
Keywords: Whirling milling, Cutting tools, Working angle, Profile design
Abstract.
Acknowledgment This work was supported by the National Specific Key Science and Technology Project 2009ZX04001-171-02, 2009ZX04011-034-02 and Jiangsu Provincial Innovative Scholar Developing Project BK2008050, China.
“In-process tool wear estimation in milling using cutting force model,” Journal of Materials Processing Technology,vol.99,March 2000, pp.113-119
Acknowledgment This work was supported by the National Specific Key Science and Technology Project 2009ZX04001-171-02, 2009ZX04011-034-02 and Jiangsu Provincial Innovative Scholar Developing Project BK2008050, China.
“In-process tool wear estimation in milling using cutting force model,” Journal of Materials Processing Technology,vol.99,March 2000, pp.113-119