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Online since: December 2010
Authors: Hai Liang Wang, Tong Wei Gao
Characteristics of Multi-Storied Brick-and-Concrete Buildings Response to Blasting Vibration of Tunnel Excavation Hailiang Wanga ,Tongwei Gaob, Key Laboratory of Mine Disaster Prevention and Control, Shandong University of Science and Technology, Qingdao, 266510, Shandong, China aTLGCBP@263.net, btongwei_gao@126.com Keywords: Tunnel; Blast; Particle Vibration Velocity; Amplification Effect; Brick-Concrete Structure Abstract.
Response characteristic of ground high building to tunnel excavation blasting vibration is related to building structure, building material, geological, blasting parameter, spatial relationship of tunnel and building, monitoring equipment and so on
Acknowledgements (1)National Natural Science Foundation (10672091) (2) Education Department Technology Planned Project of Shandong Province (011541803) Reference [1] Hailiang Wang: Engineering Blasting.
Chinese Journal of Underground Space and Engineering.
Online since: October 2011
Authors: Xu Guang Sun, Xiao Ling Sun, Jing Sha He, Qiu Ge Yang
The Route Algorithm of Post-Disaster Road Monitoring System Xu-guang Sun1,3,a, Jing-sha He2,b, Xiao-ling Sun3,c and Qiu-ge Yang4,d 1School of Computer Science, Beijing University of Technology, Beijing,China 2School of Software Engineering, Beijing University of Technology, Beijing,China 3Department of Disaster Information Engineering, Institute of Disaster Prevention, Sanhe,China 4Department of Disaster Information Engineering, Institute of Disaster Prevention, Sanhe,China asd_xgsun@163.com, bjhe@bjut.edu.cn, csxlliqi@163.com,dyangqiuge@yahoo.cn, Keywords: wireless sensor networks; earthquake; road monitoring; route established; route forwarding Abstract: The post-disaster road monitoring system provides an interesting application area for wireless sensor networks.
Introduction After the earthquake, roads and bridges are damaged, transmission and communication are interrupted, so the manpower and material for rescue can not be implemented in the first time to the disaster-affected area.
Acknowledgements This paper is supported by the Teacher Research Fund of China Earthquake Administration (20100116), the Youth Science and Technology Foundation of Disaster Prevention and Mitigation (200910).
XiBei Seismology journal, 2008,30(1):88-93
Online since: August 2011
Authors: Wei Zhou, Xiao Lin Chang, Xing Hong Liu
Simulation of concrete temperature cracking process based on EFGM Liu Xing-hong1, a, Chang Xiao-lin 2, b , Zhou Wei2, c 1 School of Civil Engineering and Architecture, Wuhan University Wuhan 430072,China 2 State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China a liuxhphd@163.com, bchangxl@whu.edu.cn, c zw_mxx@163.com Keywords: element-free Galerkin method; concrete; temperature crack; numerical simulation.
The governing equation of heat conduction: (1) ; ; (2) Where is temperature, is heat transmission coefficient andis density of material, is the given temperature on boundary and is the given heat flux on, h is coefficient of heat convection, is ambient temperature,n is unit vector of outer normal of associated boundary.
Acknowledgements This work was sponsored by the National Natural Science Foundation of China (No. 50909078).
International Journal for Numerical Methods in Engineering, 1994, 37(2): 229-256 [2] Belytschko T, Lu Y Y, Gu L.
Online since: March 2015
Authors: Issakul Tumanov, Seitzhan Orynbayev, Birzhan Baibutanov, Alexey Kruglikov, Piotr Kacejko
The resistance depends on the geometry of the modeled section and is defined by the following relation: R = g/(mu0*mur*CSA) (3) where g - the thickness of the section or air gap; mu0 – constant permeability; mur - relative permeance of the material; CSA - sectional area.
Tumanov, Parametric electromagnetic exciter of low frequency mechanical oscillations for systems of monitoring and dispensing of multifractional liquid products, Russian Electrical Engineering Journal (Elektrotekhnika), Moskow - 8(2013), pp.48-52 [2] I.E Tumanov, Multi-module vibratory drive based on the electromagnetic exciter of low frequency oscillations, Dissertation for the degree of candidate of technical sciences, Almaty (2001), p 210
Orynbayev and others, Electromagnetic exiter of low frequency oscillations for vibro distortion systems, Collected works of Second international science conference “High technologies – cornerstone of sustainable development”, KazNTU, Almaty - 2(2013), pp 47-52
Online since: November 2010
Authors: Chun Fu Jin, Peng Niu, Shi Yan
During the numerical simulation, Drucker-Prager (D-P) yield criterion and the elastic-plastic material model are applied.
Acknowledgment The reported research is supported by Shenyang Science Foundation of Large-scale Instrument Sharing Service (2009), China.
Hubei Science and Technology Press (1987) [3] A.
Morris: International Journal of Space Structures.
Online since: December 2012
Authors: Fei Tang, Xiao Hao Wang, Xiao Jun Sun
A Practical Algorithm for Ball-end Mill using a Five-axis CNC Grinding Machine Xiaojun Sun1,2, Fei Tang2, Xiaohao Wang2 1School of Electronics and Computer Science and Technology, North University of China, Taiyuan, Shanxi, 030051, China 2State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments and Mechanology, Tsinghua University, Beijing, 100084, China tangf@mail.tsinghua.edu.cn Keywords: Ball-end Mill, Algorithm, Mathematical model, Simulation processing Abstract.
Int J Adv Manuf Technol(2009)41:846-857.DOI 10.1007/s00170-008-1554-x ,[] Trung Thanh Pham, Sung Lim Ko: A practical approach for simulation and manufacturing of a ball-end mill using a 5-axis CNC grinding machine, Journal of Mechanical Science and technology 24(2010)159~163 ].In relief grinding, these research can not control normal relief accurately but only orthogonal relief[[] Xiaofeng Yue: A Novel CNC Grinding Method for Relief Surface Based on a CAM System(2011) [4] Yi.Lu,Yoshimi Takeuchi, Ichiro Takahashi and Masahiro Anzai: An integrated system development for ball end mill design, creation and evaluation.
Int J Adv Manuf Technol(2005)25:628-646.DOI 10.1007/s00170-004-2259-4 [5] Caixia Zhao, Fei Tang, Shuzhe Li, Xiaohao Wang: A novel CNC Grinding method about relief surface of corner radius end mill based on a CAM system, Applied Mechanics and Material Vol.120(2012)pp26-31 ], with which could easily led to the problem of a not enough round end of the mill..
Online since: September 2013
Authors: Cui Hong Ma, Jing Zhang, You Liang Yang, Fan Wei Meng
(16) Wherein R is the measurement error covariance matrix, as with the power of the reader in RFID-based positioning system, the measurement error obstructions between the size of the reader and label material, size have relationships ,in the actual calculation of the matrix is difficult to obtain prior information.
Acknowledgment This work came from this project: “Demonstration of Coal Mine Safety Pre-warning System Platform Based on Internet Technology” and was financially supported by the Hebei science and technology project (12276906D) and Tangshan science and technology research and development program (11130203A).
A new TDOA Localization Algorithm in cellular networks based on Taylor series expansion[J].Communications Journal, 2007, 28(6):7-11.
Online since: January 2012
Authors: Ming Hui You, Guo Jun Liu, Xin Gao, Lin Li, Zhi Peng Wei, Mei Li, Lian He Li, Zhan Guo Li, Xiao Hua Wang, Yong Wang
low-density InAs quantum dots growth by molecular beam epitaxy Li Zhan-guo1, You Ming-hui2,Liu Guo-jun1*, GaoXin1 ,Li Lin1, Wei Zhipeng1, Li Mei1, Wang Yong1, Wang Xiao-hua1,Li Lian-he1 1National Key Laboratory on High Power Semiconductor Lasers,Changchun University of Science and Technology,Changchun 130022,China 2 Aviation University of Air Force,Changchun 130022 *Email:lzhg000@126.com Keywords: low-density; molecular beam epitaxy; quantum dots (QDs) Abstract.
No dislocation or QD plastic relaxation was observed, indicating an excellent material quality.
The authors are greatful to the the National Science Foundation of China under Grant No. 60976056,61006039 References [1] P.
Patriarche, et al., Journal of Crystal Growth, 301-302(1)(2007),p 959
Online since: August 2013
Authors: Song Sang, Chang Dong Li, Xiao Shi
The mooring arrangement way and mooring material choice to the platform motion response have certain effect, in this paper, on the basis of further research in the future will be done.
Acknowledgement This work was supported by the National Natural Science Foundation of China(51079135);Qingdao municipal science and technology development project (12-1-4-1-(18)-jch); Opening Foundation of State Key Laboratory of Hydrology- Water Resources and Hydraulic Engineering (2012491011); Opening Foundation of State Key Laboratory of Hydraulics and Mountain River Engineering(1210) References [1] Dunbar C, Cotton J.
Journal of Offshore Mechanics and Arctic Engineering, 1999, 121(3): 194-200
Online since: October 2009
Authors: Yu Mei Huang, Jun Lu, Wen Wen Li, Yang Liu, Hua Zhong
Study on Workpiece Machining Precision PID Control Model in Closed-loop Manufacturing Systems Lu Jun1, 2,a , Huang Yu-mei1,b, Li Wen-wen2,c , Liu Yang2,d and Zhong Hua3,e 1 School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Shaanxi, Xi'an, 710048, China 2 College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Shaanxi, Xi'an, 710021,China 3 School of Electronic and Information Engineering,Hong Kong Polytechnic University,China a lujun@sust.edu.cn, bhuangym@xaut.edu.cn, cliwenwen@sust.edu.cn, dliuyang0730@qq.com, e zhonghuaiver@hotmail.com Keywords: Closed-loop manufacturing system; Workpiece machining precision; PID control model, Error compensation; Processing error Abstract.
CNC machining Fig.2 Error feedback and error compensation based on PID r(k) Proportional Integral Differential e(k) u(k) NC adjectment b(k) Processing errors c(k) Fig.1 Closed-loop Manufacturing Systems CNC machining PID error compe nsation Dimension measurement Processing errors aim dimensi on Workplace dimension NC adjustment If k>1 If k=1 Examples of application Experimental Processing Conditions The sample material is 45 steel after modulation processing.
[3] Su Ai-lin; Wang You-quan; Zhang Chun-lei; Zhao Xue-feng: Journal of Sichuan University (Engineering Science Edition) , Vol.33(2001.01):82.
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