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A Fast Responsive Thermosensivtive P(NIPAM/AA-Na) hydrogel and its Fire suppressing experiment Jia Chun-lei1, 2, a, Wang Qun3, b, Tangkai2, c 1School of Civil and Environment Engineering,University of Science and Technology Beijing,Beijing 10083,China; 2Department of Fire Fighting Command, The Chinese People’s Armed Police Forces Academy, Langfang, Hebei Province 06500,China; 3College of Materials Science and Engineering,Beijing University of Technology,Beijing 100022,China anmjchl@163.com, bwangq@bjut.edu.cn, ctangk427@sohu.com, Keywords: thermosensitive; hydrogels; low critical soluble temperature (LCST); extinguishing agent; extinguishing efficiency Abstract: A fast responsive thermosensitive hydrogel poly((N-isopropy- lacrylamide/Sodium acrylate) (P(NIPAm/AA-Na)) were prepared by free radical polymerization methods.

Study of Permanent Magnet Synchronous Motor Current Robust Control Based on Adaptive Fast Terminal Sliding Mode Control Liang Qi 1, 2,YanzhuYang3 Xu Bai 4, Hongbo Shi 1*,Weiliang Liu3 1.School of Information Science & Engineering, East China University of Science and Technology，Shanghai 200237, China;2.
The proposed control method is testified by computer simulation and improves the robustness of the Permanent Magnet Synchronous Motor control system. 0．Introduction Permanent Magnet Synchronous Motors(PMSM) are widely used in various fields of industrial production , civil life , aerospace and military defense due to the advantages of high power density, high efficiency , high reliability and fast dynamic response.
Though the current feed-forward control method is simple and easy- engineering applications , still the system performance is greatly reduced with bad system robustness in the case of motor parameters unknown; The internal model control has advantages of enhancing system robustness and better decoupling effect.

Optimalization of the heat pump design in the phase of the evaporator selection Petr Vlček1, a*, Marian Formánek1,b, Přemysl Tomáš1, c, Stanislav Jobánek2,d 1Institute ofbuildingServices, Brno University ofTechnology , Facultyof Civil Engineering, Veveří 331/95; 602 00 Brno, Czech Republic 2 NEPA spol. s r.o., Purkyňova 45, 612 00 Brno, Czech republic a vlcek.p@fce.vutbr.cz, b formanek.m@fce.vutbr.cz, c tomas.p@fce.vutbr.cz, d jobanek@nepa.cz Keywords: evaporator, heat pump, design, Abstract.
Applied Thermal Engineering 31, 3713-3719 [5] Shuxue, X., Guoyuan, M., 2011.

Civil and Environmental School of University of Science and Technology, Beijing, 100083, China a Email: xzh63@126.com, b Email: lushouci@gmail.com Keywords: Powder; Electrostatic technology; Dispersion; Particle; Abstract.
Lun Yang, Powder engineering test handbook (in Chinese), Beijing 1987
B.A., Mining Engineering 1978, April, 355

China Civil Engineering Journal, 2003,36(9):59-64(In Chinese) [7] Ralf Dewenter, Justus Haucap, Riardo Luther, Peter Rötzel.
Systems Engineering-Theory & Practice 2010,30(11):1921-1930(In Chinese) [19] Copper M L, Deck L, McConnell K E.

Frame nearby the Sea MIAO Jijun 1,a , QI Bo 1,b and LIU Yanchun1,c 1 School of Civil Engineering， Qingdao Technological University, Qingdao, China a msyu_990421@sina.com,b qb725@163.com,clyc@qtech.edu.cn Abstract The netlike cracks along the rebars at the bottom of concrete slabs as well as the circular cracks around the columns and beams were found in an underground park, which is a cast-in-site concrete frame.
Overview of Engineering Survey An existing residential building with a underground garage was studied in this paper.

Filtering LiDAR Data Using Binary Quadric Trend Surface and Morphological Approaches Feng Li, Ximin Cui, Ling Zhang, Shuwei Shan, Kunlun Song College of Geosciences and Surveying Engineering, China University of Mining and Technology, D11, Xueyuan Road, Haidian District, Beijing, China, 100083 lif1223@yahoo.com.cn Keywords: filtering, LiDAR, trend surface, morphology Abstract.
In the areas of civil works, one of significant applications of laser point clouds is used to produce a DEM (Digital Elevation Model) for imitating terrain surface throughout terrain points separated from object points.
Xie: Photogrammetry Engineering and Remote Sensing. vol. 73(2007), p.175

Telles1,b 1 Programa de Engenharia Civil - COPPE/Univ.
Introduction Meshless methods are increasingly proving to be accurate for the analysis of the most common problems found in engineering applications.
[5] C.A.Brebbia, J.C.F.Telles and L.C.Wrobel: Boundary Element Techniques: Theory and Application in Engineering (Springer, Berlin 1984)

Availability Analysis of Mercator Projection in Nautical Charts’ Compilation in Polar Regions Wen Chao-Jiang*, Bian Hong-wei, Gao Xin, Wang Rong-ying Dept. of navigation, Electric Engineering Academy, Naval University of Engineering Wuhan 430033,China Email:tianjiguizhou@163.com Keywords: Polar navigation; chart compilation; Mercator projection; availability analysis Abstract.
China has not yet published Arctic nautical charts so far, the past five Arctic expeditions mainly supported by foreign civil Arctic nautical charts, compilation of Chinese Arctic Charts is in urgent need [3-4].

Damage Mechanics and Critical Plane Approach to Multiaxial Fatigue Roberto BRIGHENTI 1, a, Andrea CARPINTERI 1, b 1Department of Civil and Environmental Engineering & Architecture University of Parma, Viale delle Scienze 181/A, 43100 Parma, Italy abrigh@unipr.it, bandrea.carpinteri@unipr.it Keywords: Fatigue, multiaxial stress, critical plane, damage mechanics.
Introduction Most of the structural components in the engineering applications are frequently subjected to variable loading: such components are usually operating under combined loads which can be out of phase and with different frequencies.