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.% FFA, for used as a raw material to produce biodiesel in the second-step transesterification process.
Furthermore, there are few researches towards the study on the POME as a raw material for produce the biodiesel using heterogeneous acid catalyst of Amberlyst-15.
Materials and Methods Materials.
Acknowledgments This research was supported by National Science, Research and Innovation Fund (NSRF) and Prince of Songkla University (Grant No ENG6505020S).
Journal of Environmental Chemical Engineering Vol. 8 (2020), p. 103538

Study on the High Carbon Dioxide in Repeated Mining Coal Seam of Tangshan Zhongqiang Sun1,a, Jinfeng Zhang2,b, Kun Zhou3,c 1,2College of environment science and engineering Hebei University of Science and Technology Shijiazhuang, China 3 Hebei Chemical & Pharmaceutical Vocational Technology College Shijiazhuang, China asunzhongqiang80@126.com, btianqibucuo134@126.com, c45443957@qq.com Keywords: carbon dioxide; repeated mining; spontaneous combustion Abstract.
It has a large number of goaf and a variety of no recovery wooden support and some carbon-containing organic material.
Journal of Mining ＆ Safety Engineering, vol. 26, pp.1-14,2009.
China Safety Science Journal,vol.14,pp. 47-50, 2004.
Journal of China Coal Society, vol.34, pp. 726-729, 2009.

Assembly Sequence Generation and Optimization for Compliant Assemblies Based on Genetic Algorithm Yan-feng Xing a, Yan-song Wang b, Xiao-yu Zhaoc School of Automotive Engineering, Shanghai University of Engineering Science, Shanghai, 201620 a xyf2001721@sina.com.cn, b jzwbt@163.com, c zhaoxiaoyu@sues.edu.cn Key words: Assembly sequence, compliant assembly, genetic algorithm, optimization Abstract.
Mutation is applied to alter the genetic material of a very small number of individuals in a random number, enhancing the diversity of the population and expanding the volume of the current search space.
Acknowledgement This work was supported by Shanghai university scientific selection and cultivation for outstanding young teachers in special fund (gjd09015), the national natural science foundation of china (51045007), Shanghai Natural Science Foundation(11ZR1414700) and Dr start-up fund research of Shanghai University of Engineering Science.
Chen: Journal of Mechanical Design, Vol. 127(2005), p. 347

The Study on the Communication of the Multi-robot Polishing system by the ACO Mode Miao Yu1,a, Xin An2,a,Jing Ji2,a 1Changchun University, Jilin Changchun, China 2Changchun University of Science and Technology Institute of Mechanics Engineering, Jilin Changchun, China aMiao263@163.com Keywords: Multi-robot communication; ACO(ant colony optimization) mode; Blackboard structure Abstract.
Figure 1 The system of multi-robot Strategy of the cooperation for the robot polishing system with the ant colony optimization By means of a material that is called a pheromone, an ant can guide its direction of motion in the foraging.
Acknowledgement This research is sponsored by the fund of Jilin Science Commission (201215114).
[3] Zhang Jie: Multi-Agent technology application In the advanced manufacturing (Science press, Beijing 2004), in Chinese
[7] LI Yu-jian, LIU Guo-dong: Journal of Southern Yangtze University(Natural Science Edition) Vol.16(2007), p. 132-135

Application of the Fuzzy-AHP Method in Bridge Crane Safety Evaluation Gang Shen1,a, Dong Xiang1,b, Nan Liu2,c, Peng Mou1,d and Yong Yang3,e 1Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China 2POL Research Institute of General Logistics Department of PLA, Beijing 102300, China 3College of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, China ashengangxz@gmail.com, bxd@mail.tsinghua.edu.cn, cliunanchina@gmail.com, dmoupeng@mail.tsinghua.edu.cn, eyang816yong@qq.com Keywords: Bridge crane, Membership grade, Weight coefficient, Safety evaluation, Fatigue test Abstract.
Table 1 Evaluation index factors of bridge crane Layers Factors Target layer F-Safety grade of main girder Criteria layer V1-Working environment V2-Design parameter V3-Manufacturing technology V4-Maintenance Index layer M11-Environment temperature M21-Dynamic stiffness M31-Material quality M41-Service time M12-Environment humidity M22-Static stiffness M32-Welding quality M42-Maintenance frequency M13-Acid-base property M23-Camber M33-Stress distribution M43-Operating M14-Corrosion degree M24-Horizontal bending M34-Crack surface M44-Loading M25-Stress amplitude M35 -Machining error M45-Lifting position M26-Web buckling M46-Working frequency M27-Maximum stress The target layer is F, namely safety grade of main girder.
Acknowledgment It is a project supported by National Natural Science Foundation of China(Project No. 51205221 and No. 51275258), and the National Science and Technology Support Program(Project No.2011BAF11B02).
Journal of Safety Science and Technology, 2011,No.2

Research on Outdoor Positioning Based on Ray Tracing Method Xianqiang Peng College of Computer Science and Technology, Chongqing University of Posts and Telecommunications, Chongqing, 400065, China pxq198411@yeah.net Keywords: Ray tracing, Outdoor Positioning, Path Loss.
In fact, the outdoor cell environment is very complex in the practical situations, involving multiple regions positioned cell, and the shape, height, and material in each cell is not identical to the building, which will more or less affect the results of tracking radiation.
Acknowledgements This work was partly supported by the National Scholarship Fund, the Natural Science Foundation of Chongqing (No. cstc2012jjA40064) and the National Natural Science Foundation of China (No. 61075019).
Cao: submitted to Chinese Journal of Radio Science (2002)

Journal Citation (to be inserted by the publisher) Copyright by Trans Tech Publications Development of an Environmental Sensor for Heavy Metal Ion Detection by Surface Plasmon Resonance Spectroscopy Jungwoo Moon 1, Taewook Kang 1, Seokil Oh 1, Soonwoo Chah 2, Kyunghee Choi3 and Jongheop Yi1* 1 School of Chemical Engineering, Seoul National University, San 56-1 Shilimdong Kwanak-Gu Seoul, 151-744, Korea (*corresponding author : jyi@snu.ac.kr) 2 Department of Chemistry, Stanford University, Stanford CA 94305-5080, USA 3 National Institute of Environmental Research, Environmental Research Complex, Kyungseo-Dong Seo-Gu Incheon, 404-170, Korea Keywords: surface plasmon resonance, environmental sensor, heavy metal ion, platinum ion, 1,6-hexanedithiol.
Materials and Method 1,6-hexanedithiol (HDT, Aldrich) was used as an adsorption-inducing chemical.
Yi: Studies in Surface Science and Catalysis, Vol. 146 (2003), pp. 527-530.

Journal of Shaanxi University of Technology(Nature Science Edition) ,2010
Study of Gear Profile Curve Equation for Less-teeth Gear Transmission, Applied Mechanics and Materials Vols. 26-28 (2010) pp 476-482 [6] Sun Huan, etc.

Evaluation of the Capacitances by Using High Frequency Roll-Off Fitting to the Second Order Approximation Hsin-Chia Yang1, a, Mu-Chun Wang1, b 1Ming-Hsin University of Science and Technology, Hsin-Chu, Taiwan Department of Electronic Engineering ahcyang@must.edu.tw, bmucwang@must.edu.tw Keywords: the equivalent dielectric (oxide) thickness, the size roll-off capacitance, leakage current, mechanism of current conduction.
By selecting C1=1.130×10-5 nF/mm2 and k2 = 2.48 × 103 Ω2 with Ao = 100 mm2, the corresponding teff =30.5 Å and the reasonable effective resistivity 3.13 × 10-5 Ω-m reveal the reliable fabricated devices with the promising materials.
References [1] Hsin-Chia Yang and Yi-Chang Cheng, Japanese Journal of Applied Physics, vol. 44, No. 4A. 2005. pp1711-1716

Debili Laboratory of Magnetism and Spectroscopy of Solids LM2S, Department of Physics, Faculty of Science, Badji-Mokhtar Annaba University, BP12 23200 Annaba Keywords: Al-Cu Alloy, Resistivity, Sputtering, Strain, Thin Film Abstract This work deals with Al-Cu thin films, deposited onto glass substrates by RF (13.56MHz) magnetron sputtering, and annealed at 773K.
The role of these compounds can have a particular interest in the improvement of the intrinsic properties of a material by conferring on it a better thermal stability and a good corrosion resistance.
Using bulk material minimizes oxygen introduction into the films.
Harper IBM Journal of Research and Development, 3 (1998) 42V 2.