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CORC

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Experimental study on waterflood development in large–scale karst structures 期刊论文
Journal of Petroleum Science and Engineering, 2019, 卷号: Vol.175, 页码: 838-851
作者:  Yi-Long Li;  Feng Wu;  Xiao-Ping Li;  Xiao-Hua Tan
收藏  |  浏览/下载：4/0  |  提交时间：2019/12/13
Large-scale rockfall impact experiments on a RC rock-shed with a newly proposed cushion layer composed of sand and EPE 期刊论文
ENGINEERING STRUCTURES, 2018, 卷号: Vol.175, 页码: 386-398
作者:  Zhao, Peng;  Xie, Lingzhi;  Li, Liangpu;  Liu, Quan;  Yuan, Song
收藏  |  浏览/下载：32/0  |  提交时间：2019/02/25
Crowd density estimation using wireless sensor networks 会议论文
作者:  Yuan, Yaoxuan;  Qiu, Chen;  Xi, Wei;  Zhao, Jizhong
收藏  |  浏览/下载：4/0  |  提交时间：2019/12/10
White-light spectral scanning interferometry for surface measurement system (EI CONFERENCE) 会议论文
6th International Symposium on Precision Engineering Measurements and Instrumentation, August 8, 2010 - August 11, 2010, Hangzhou, China
Wang C.; Cao N.; Lu J.; Guan J.
收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25
The paper introduces the white-light spectral scanning interferometry for surface measurement. This interferometry can be used to measure the roughness of both smooth surfaces and those with large step heights. This real-time surface measurement can be achieved using acousto-optic tuneable filtering (AOTF) technique without mechanical scanning. At first  the structure and principle of this interferometry is introduced. Then the algorithm of the surface roughness measurement is proposed. What's more  the experiment with standard test piece is conducted. Compared with the traditional laser-light interferometry  the data shows that the proposed method has a higher accuracy which is proved to be nano-scale. A conclusion is given at last in which the superiorities and the limitations of the proposed system were discussed. 2010 SPIE.  
Optimizing control mode of optical payloads based on multi-population genetic algorithm (EI CONFERENCE) 会议论文
2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009, August 9, 2009 - August 12, 2009, Changchun, China
Xu W.; Jin G.
收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25
Optimizing the control mode of optical payload could improve the payload's work efficiency. When the mathematic model of payload's control mode was established  optimization problems could be boiled down to seek the maximal value of the function with many variables. This paper put forward a calculational method to base the mathematic model  the calculational method was multi-population genetic algorithm (MPGA). After the 0-1 variables and real multidimensional ones had been coded separately  the algorithm established the populations independently  made the multidimensional variables as the centrosome and combined 0-1 ones to work out the maximal value of the function which was established to describe the control mode of the optical payload. Moreover  the emulational experiment had been done with the material arithmetic operators. The result indicates that the method using MPGA can hurdle the disadvantage of traditional ones which calculate slowly and get into local best value trap easily . It has the characters that not only fits large scale area scout  but also gets the best value in full scale rapidly  so this algorithm can better satisfy the technology demand for the intelligent control of optical payload. 2009 IEEE.  
Study on characteristics of frictional resistance of a novel dry fracturing fluid 期刊论文
Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics, 2009, 卷号: 30, 期号: 9, 页码: 1513-1516
作者:  Lu, You-Lian;  Wang, Shu-Zhong;  Sun, Xiao;  Bai, Yu;  Song, Zhen-Yun
收藏  |  浏览/下载：2/0  |  提交时间：2019/12/18
Using one-dimensional nonlinear photonic crystal for dynamical addressing optical interconnection (EI CONFERENCE) 会议论文
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
Chen M.; Li C.; Xu M.; Wang W.; Ma S.; Xia Y.; Chen S.; Liu D.
收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25
Optical interconnection is the key technique of high-speed optical information process and optical communication. A lot of approaches for optical interconnection have been proposed since Goodman in Stanford University firstly proposed the optical interconnection for very large scale integrated circuits technology. A dynamical addressing device for optical interconnection was designed and fabricated in this paper. This optical device is based on one-dimensional nonlinear photonic crystal made on the planar waveguide. The nonlinear materials ZnS and ZnSe  which have large nonlinear refractive index coefficients  were alternately deposited on the waveguide to form one-dimensional photonic crystal. The Bragg condition is changed when the input power of the control light increased due to the nonlinear characters of the materials  thus the reflective angle of the signal light can be changed with the input power change of the control light. In our experiment  when increasing the power density of control light from 0 to 2.60X105W/cm 2  the angle of the signal beam can be changed about 20. The interconnection characteristics were investigated in theory and in experiment. The testing data agree well with theoretical predictions. This kind of devices is promising to use in the all-optical interconnection  optical information processing and optical communication.  

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