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The studies on the esterification of oleic acid using P2O5/CaCl2/Fe3O4 composite catalysts Xiaowei Di 1, a, Nalingaova Li 2 and Jun Zhang 1 1 College of Chemistry and Chemical Engineering, Inner Mongolia University, 235, Daxue Xi Road, Hohhot, 010021, China 2Baotou Environmental Monitering Center, Hudemulin Street, Qingshan District,Baotou,014030, China a cexwdi@imu.edu.cn Keywords: P2O5/CaCl2/Fe3O4 composite catalysts, oleic methyl ester, biodiesel.
A pretreatment esterification step must be considered as mandatory for oils with high content of FFA, such as in waste oils, to eliminate the free acidity, which should be reduced to levels below 1% w/w.[8] One alternative process to produce biodiesel is the esterification of free fatty acid in the presence of a acid used as catalyst. [9] Thus, the improvement of the esterification step could represent one of the key points that need to be studied.
Dissolved about 125mg FAME products and 2.5mL inner standard material, heptadecanonic methyl ester, to the 2.5mL acetic ether in a reagent bottle, and injected 1 ml into GC injection system after thorough mixed.
By adding 1％ catalyst (w/w) against material fatty acid, 50%, 60% and 80% conversions of oleic acid were found by Fe3O4 , CaCl2 and P2O5 respectively.

Research Status of High-pressure Water Jet Incremental Sheet Metal Forming and Research on a New Method of the Straight-walled Sheet Metal Part Forming Lingyun Zhanga, Peng Yuanb Key Laboratory of Digital Manufacturing Simulation and Experimental Technology, Liaoning province, Shenyang Aerospace University, Shenyang, 110136, China azhangly79@163.com, byyuanpengp@163.com Keywords: water jet, incremental forming, sheet metal forming, straight-walled sheet metal part Abstract.
It can also improve the conditions of sheet metal processing, make better use of the material formability than conventional forming technology, raise the sheet metal formability, get more complicated parts [1], achieve to flexible digital manufacturing of sheet metal.
Research status One of the earliest researchers of high-pressure WJISMF is Hideo ISEKI, who worked in department of Mechanical Engineering, Tokyo Institute of technology.
With the forming semi-cone angle reduces, the thickness of sheet metal deformation zone will become thin, when the thickness decreases to a certain extent, material will fracture due to instability.

., the attachment of “chemical functionalities” represents a strategy alluring the materials scientists and the chemists for novel CNTs based applications.
Asim; Key Eng.
Mosadegh; Proceedings of world academy of science, engineering and technology, 37, January (2009), p- 177

Hierarchical structures of silicon oxynitride nanowires formed by a gallium-catalyzed in-situ reactive technique Shi-biao Xiang1, 2, a, Xu Xiang3, b 1 Department of Technical Physics, Zhengzhou Institute of Light Industry, No.5 Dongfeng Road, Zhengzhou 450002, PR China 2 Sias International College, Zhengzhou University, Zhengzhou 451150, PR China 3 State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China ashibiaoxiang@zzuli.edu.cn, bxiangxu@mail.buct.edu.cn Keywords: Silicon oxynitride nanowires; Microstructure; Chemical vapour deposition; Nitrification Abstract.
Introduction The self-assembly or complex superstructures of inorganic materials consisting of primary nano-building blocks e.g., nanowires, nanotubes, nanoplates etc have aroused considerable interests owing to not only their significance in understanding fundamental physical phenomenon and formation process of complex structures, but also their potential applications as integrated nano-devices [1-3].

Logic Analysis of Event-based Emergency Handling Jinjun YUAN 1,2,3,a, Quan Yi HUANG 2,3,b, Hong Yong YUAN 2,3,c 1Key Laboratory of Mine Spatial Information Technologies of SBSM,Jiaozuo,China 2Research Institute on Public Safety Emergency Response of Tsinghua University, Beijing, China 3Department of Engineering Physics Tsinghua University, Tsinghua University, Beijing, China alanduseyuan@sohu.com,bqyhuang@tsinghua.edu.cn,chyyuanthu@gmail.com Keywords: Emergency,Emergency handling,Logic Analysis Abstract.
Emergency response and safeguard resources mainly include emergency institution, emergency human resources, emergency materials and equipment, emergency telecommunications, emergency health service, emergency shelters and emergency financial support, etc.
Acknowledgements The work is sponsored by Open Research Program of Key Laboratory of Mine Spatial Information Technologies of SBSM(KLM201113).

Introduction Fluid-conveying pipes are widely used in irrigation facilities, petrochemical industry, mechanical industry, marine engineering and other fields.
Newmark method is a step-by-step integration method, and the key is to establish the recursion relations of the state vectors from time to time .
The fluid was room temperature water, and the pipe material was rolled copper.
The simulation parameters of pipe system were taken as follows: pipe length m, pipe inner diameter m, pipe wall thickness m, pipe material density Kg.m-3, Poisson’s ratio , friction factor , fluid density Kg.m-3, pipe modulus GPa, fluid bulk modulus GPa, fluid pressure MPa, fluid flow rate m.s-1.

Adsorption of Volatile Phenol in Coking Wastewater by Diatomite Qiyuan Gu1, a, Gen Wu2,b and Xining Lu1 1School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China 2 Basic Research Service, MOST, Beijing 100862, China aguqiyuan1984@gmail.com, bwugen0991@gmail.com, Keywords: diatomite; volatile phenol; coking wastewater; adsorption Abstract.
Materials and Methods Wastewater Real coal coking wastewater used in this study was collected from the full-scale wastewater treatment facility of a coke plant, Henan in China.
Acknowledgment The authors would like to thank the supported by State Key Lab of Urban Water Resource and Environment(HIT, Grant No.

A Computable Model for PCB Assembly Optimization Based on Polychromatic Sets Du Xuan, Yu Gang College of Mechanical & Material Engineering of China Three Gorges University, Yichang, Hubei Province, China, xdu@ctgu.edu.cn Keywords: Polychromatic set, PCB assembly optimization, Computable model.
Computable model based on Polychromatic Set The key of PCB assembly optimization with multiple tasks and machines is able to formulate an integrated model which can describe complex constraint relationships and dynamic characteristics.
The changes of internal production environment refer to the change of PCB assembly system caused by disturbance of unpredicted event (e.g. machine failure, material shortage).

Design and Simulation of Brushless Direct Current Motor Drive Meng Wei1, a, Meng Lei2, b 1School of Automation, Wuhan University of Technology, Wuhan 430070, China; 2School of Information Engineering, Wuhan University of Technology, Wuhan 430070, China amengwei514@gmail.com, bmenglei1986@gmail.com Key words: BLDCM, fuzzy adaptive PID control strategy, MATLAB/SIMULINK, simulation Abstract.
Chen: Proceedings of the Second International Conference on Intelligent Processing and Manufacturing of Materials (HI, USA, Jul. 10-15, 1999), vol. 2 (1999), p. 901-907

Study on Preparation and Property of Regenerated Liquid Reactive Dyes Regenerated Magenta Honglin Yang 1, a, Wei Xiang 1,b and Guangjie Chen 2,c 1 Institute of Textile Engineering, Zhejiang Industry Polytechnic College, North of railway station, Shaoxing, Zhejiang 312000, PRC 2 Zhejiang Jishan Printing & Dyeing Co., Ltd., Zhejiang Shaoxing, 312064 a 47108809@qq.com, ballice-xw@163.com, ccgj477@126.com Keywords: waste ink, regenerated liquid dye, stability, reactive dye ink.
Introduction In the development of digital inkjet printing processes, the preparation of printing ink was the key technique.
Experimental Materials Reactive dyes: reactive ink Jettex R Magenta was bought from DyStar Company and the Regenerated Magenta was made in laboratory.