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浏览/检索结果: 共17条，第1-10条 帮助

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Numerical investigation on quasi-dynamic behaviours of fractured rocks under uniaxial compression using new rate-dependent contact models 期刊论文  OAI收割
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS, 2025, 卷号: 176, 页码: 15
作者:  Liu, Liwang;  Li, Haibo;  Wang, Mingyang;  Zhang, Guokai;  Sui, Yaguang
  |  收藏  |  浏览/下载：4/0  |  提交时间：2025/06/27
Dynamical analysis and structural optimisation of angular contact ball bearing 会议论文  OAI收割
ELECTR NETWORK, 2022-11-24
作者:  Luo Shan;  Li Zhiguo;  Cheng Zhiyuan
  |  收藏  |  浏览/下载：14/0  |  提交时间：2023/06/19
Non-contact heart rate and respiratory monitoring based on Imaging Photoplethysmography at fingertip 会议论文  OAI收割
Beijing, PEOPLES R CHINA, 2020-11-30
作者:  Qiao WenLong;  Zhou Liang;  Liu Zhaohui;  Yu Jiangjun;  Sun Xiaoxiao
  |  收藏  |  浏览/下载：32/0  |  提交时间：2021/07/16
生物接触氧化技术低温硝化性能和硝化菌群的研究 学位论文  OAI收割
北京: 中国科学院生态环境研究中心, 2018
作者:  杨思敏
  |  收藏  |  浏览/下载：19/0  |  提交时间：2020/07/29
Analysis of activation and shutdown contact dose rate for EAST neutral beam port 期刊论文  OAI收割
RADIATION PHYSICS AND CHEMISTRY, 2017, 卷号: 141, 页码: 168-171
作者:  Chen, Yuqing
  |  收藏  |  浏览/下载：63/0  |  提交时间：2018/08/16
Effects of goldfish (Carassius auratus) population size and body condition on the transmission of Gyrodactylus kobayashii (Monogenea) 期刊论文  OAI收割
PARASITOLOGY, 2017, 卷号: 144, 期号: 9, 页码: 1221-1228
作者:  Zhou, Shun;  Zou, Hong;  Wu, Shan G.;  Wang, Gui T.;  Marcogliese, David J.
  |  收藏  |  浏览/下载：22/0  |  提交时间：2019/09/17
Deformation, structural changes and damage evolution in nanotwinned copper under repeated frictional contact sliding 期刊论文  OAI收割
Acta Materialia, 2011, 卷号: 59, 期号: 19, 页码: 7311-7324
A. Singh; M. Dao; L. Lu; S. Suresh
收藏  |  浏览/下载：22/0  |  提交时间：2012/04/13
Angular rate of test table based on high-speed non-contact measurement (EI CONFERENCE) 会议论文  OAI收割
9th International Conference on Electronic Measurement and Instruments, ICEMI 2009, August 16, 2009 - August 19, 2009, Beijing, China
作者:  Yang L.;  Zhao Y.;  Zhao Y.;  Zhao Y.;  Yang L.
收藏  |  浏览/下载：148/0  |  提交时间：2013/03/25
This article will introduces a high-speed non-contact method that can measures the angular rate of a test table though an objective perspective. This method adopts a collimator tube that can be measured as a target fixed to the test table  and the target corresponds to the angular position of the test table. In the process of the table rotating  the camera will to keep track of the objective at a high speed. Due to the high sampling frequency of the high-speed camera  instantaneous angular rate of test table can be measured. With pixel subdivision technology  its measuring accuracy can be up to 0.02 pixels. We use this methods measured a low-speed test table's angular rate and analyzed the data. The error analysis shows when the rate of the test table is 0.20/s  the accuracy of the method can achieve 0.0220%. 2009 IEEE.  
A high-speed acquisition and processing system of the laser speckle signal on the magnetic fluid (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, June 17, 2009 - June 19, 2009, Beijing, China
作者:  Sun Y.;  Sun Y.;  Wan Q.-H.
收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25
In order to achieve the dynamical detection and real-time analysis of the movement status of the magnetic fluid  according to the difficulties of the detection of the magnetic fluid  established a high-speed acquisition and processing system of laser speckle signal on the magnetic fluid. First of all  the FPGA (EP2C8T144C8N) drived the linear array CCD(TCD1501D) to scan in the corresponding time sequence given by the computer  collected the laser speckle interferometric image in rapid change on the surface of the magnetic fluid  which followed the movement of the magnetic fluid  and the signal collected by CCD was converted into the digital data through the high-speed A/D convertor and stored into the internal buffer FIFO of the FPGA  whose width and depth were designed by the user as required. Then  the FPGA sent the digital signal of the laser speckle interferometric images into the computer through the USB2.0 highspeed differential bus  whose transmission rate can reach 480Mb/s in theory. Finally  the distribution of the laser speckle on the magnetic fluid was messy and random  which carried certain information about the surface of the magnetic fluid  based on the theories of the statistic correlation and the subdivision of images  analysing and processing the laser speckle interferometric images  indirectly got the movement status of the magnetic fluid under the electromagnetic field. The experimental results show that: the High Speed Acquisition and Processing System has the advantage of full-court  non-contact  non-invasive  high-precision and high reliability and so on. The detection resolution of high speed acquisition and processing system is superior to 1m and the sample rate is 3Msps  which basically meets the requirements of the magnetic fluid movement state detection. 2009 SPIE.  
Surface-Bound Selectin-Ligand Binding Is Regulated By Carrier Diffusion 期刊论文  OAI收割
European Biophysics Journal With Biophysics Letters, 2009, 页码: 701-711
作者:  Sun GY(孙淦云);  Zhang Y(章燕);  Huo B(霍波);  Long M(龙勉);  Long M
收藏  |  浏览/下载：1396/237  |  提交时间：2009/08/03