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Online since: September 2014
Authors: Jian Ping He
Research and Analysis on rock Acoustic Emission wave characteristics
JianPing He1, a
1Dept. of civil Engineering of Luoyang Institute of Science and Technology,Luoyang,471023,China
ahejp1348@163.com
Keywords: rock mass,AE,wave characteristics
Abstract.
AE signal waveform analysis Acoustic emission sampling points is 1024 for the original signal, which lasted 411. according to the formula of (1), (2) ,the original AE signal decomposition layer 5,to obtained the approximate signal (frequency signal) and the detail signal (high frequency signal) in Figure 3,4.Engineering practice, the useful signal manifests itself in the low-frequency signal or some of the more stable signal, and the signal is manifested in the high-frequency noise signal; acoustic emission signal (useful signal) reflected in part the approximate signal and noise signal (unwanted signals) is reflected in details of the signal section; approximation signal clearly shows acoustic emission of the steady rock is a relatively stationary random signal indicating that the state of rock no new damage internal expansion, rock pressure not exceeding the rocks the ultimate bearing capacity, acoustic emission main frequency is the lower frequency, which is consistent with the statistical
AE signal waveform analysis Acoustic emission sampling points is 1024 for the original signal, which lasted 411. according to the formula of (1), (2) ,the original AE signal decomposition layer 5,to obtained the approximate signal (frequency signal) and the detail signal (high frequency signal) in Figure 3,4.Engineering practice, the useful signal manifests itself in the low-frequency signal or some of the more stable signal, and the signal is manifested in the high-frequency noise signal; acoustic emission signal (useful signal) reflected in part the approximate signal and noise signal (unwanted signals) is reflected in details of the signal section; approximation signal clearly shows acoustic emission of the steady rock is a relatively stationary random signal indicating that the state of rock no new damage internal expansion, rock pressure not exceeding the rocks the ultimate bearing capacity, acoustic emission main frequency is the lower frequency, which is consistent with the statistical
Online since: January 2014
Authors: Rui Jin Zhang, Jin Song Gui, Ming Wei Feng
Explore the Influence of Bottom Friction Parameter and Wave Breaking Parameter on Wave Height and Wave Period by MIKE21 SW Module
Jinsong Gui1, a, Mingwei Feng2, b and Ruijin Zhang 3,c
1,2School of Civil Engineering, Dalian Ocean University, Liaoning, Dalian, 116023,China
3School of Marine Technology and Environment, Dalian Ocean University, Liaoning, Dalian, 116023, China
aguijs@163.com, bfjdfmw@163.com , cruijinz@dlou.edu.cn
Keywords: MIKE21 SW Module, Bottom Friction Parameter, Wave Breaking Parameter.
Introduction MIKE21 is a professional engineering software developed by Danish Hydraulic Institute (DHI Water & Environment).
Introduction MIKE21 is a professional engineering software developed by Danish Hydraulic Institute (DHI Water & Environment).
Online since: December 2010
Authors: Rong Rong Hu, Yu Jiang Dong, Xing Hu Zhang
Analysis for the Shake Table Test of Rammed Earth Wall Panels
Rongrong Hu 1, a, Yujiang Dong 2,b and Xinghu Zhang 2,c
1School of Architecture, Xi’an University of Architecture and Technology, Xi’an, China
2School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, China
ahurongrong@live.xauat.edu.cn, bdongyujiang_123@163.com, czhangxinghu@126.com
Keywords: rammed earth wall; seismic reinforcement; shake table test
Abstract: Traditional Rammed earth houses are still widespread in rural areas of western China.
As is commonly known, however, houses built of earth are highly vulnerable to earthquake and most of the rural houses are non-engineered with poor construction quality.
As is commonly known, however, houses built of earth are highly vulnerable to earthquake and most of the rural houses are non-engineered with poor construction quality.
Online since: February 2011
Authors: Yao Ling Xu, Hong Li Hou
An Analytical Method for 3-Phase Model of Electro-Magneto-Elastic Fiber Composites with Periodically Distributed Reinforced Phases
Yaoling Xua and Hongli Houb
School of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao 066004, P R China
axylysu@163.com, bhou_hongli@163.com
Keywords: Electro-Magneto-Elastic Composites; 3-Phase Model; Periodically Distributed Reinforced Phases; Effective Property.
Lagoudas: International Journal of Engineering Science.
Lagoudas: International Journal of Engineering Science.
Online since: June 2014
Authors: Wen Tong Huang, Guo Yuan Xu
Anti-rutting Performance Analysis of Asphalt Mixture with
Different Natural Asphalt
Wentong HUANG1,a*, Guoyuan XU1,b
1School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, 510640, China
aemail:wthuang@scut.edu.cn, bemail:gyxu@scut.edu.cn
Key words: natural asphalt, modification mechanism, mixture, rutting performance
Abstract: The modification mechanism and high temperature deformation law are obtained by the rutting test of the same matrix asphalt and aggregate gradation with different natural asphalt mixture.
Therefore, the Iran rock asphalt has a wonderful prospect in engineering.
Therefore, the Iran rock asphalt has a wonderful prospect in engineering.
Online since: June 2013
Authors: Rui Jun Liu
Automatic Algorithm of Automotive Stamping Direction based on GA
Liu Ruijun
College of Transportation and Civil Engineering Beihua University Jilin China
tjuliuruijun@163.com
Keywords: Automatic Algorithm ;Automotive; Covering; Stamping Direction; Genetic Algorithm
Abstract.
A piecewise hole filling algorithm in reverse engineering[J].
A piecewise hole filling algorithm in reverse engineering[J].
Online since: January 2012
Authors: Ying Gao, Yue Xin Han, Wenbo Li, Jie Liu
Effect of Roasting Temperature on High Temperature Sintering
Process of Different Mass Ratio of CaCO3/ SiO2
Ying Gao1, a, Yuexin Han1, b,, Wenbo Li1, c , Jie Liu1, d
1College of Resources& Civil Engineering, Northeastern University,
Shenyang, P.
References [1] Yu Lixiu, Sun Yaguang, Zhang Ran: New Chemical Materials, Vol.33 (2005), p.58-60 [2] Kaili Lin, Jiang Chang, Jianxi Lu: Materials Letters, Vol. 60 (2006) p. 3007–3010 [3] Zhou Yongqiang, Xue Linwei, Zhang Jingfeng, Yin Dewu, Guo Xiaowu:Rare Metal Materials and Engineering, Vol.37(2008),p.434-436 [4] Li Nuo, Wang Zhiqiang, Zhang Chengliang, Liu Chengwen, Wang Zhuowei.
References [1] Yu Lixiu, Sun Yaguang, Zhang Ran: New Chemical Materials, Vol.33 (2005), p.58-60 [2] Kaili Lin, Jiang Chang, Jianxi Lu: Materials Letters, Vol. 60 (2006) p. 3007–3010 [3] Zhou Yongqiang, Xue Linwei, Zhang Jingfeng, Yin Dewu, Guo Xiaowu:Rare Metal Materials and Engineering, Vol.37(2008),p.434-436 [4] Li Nuo, Wang Zhiqiang, Zhang Chengliang, Liu Chengwen, Wang Zhuowei.