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Study on single-channel signals of water cherenkov detector array for the lhaaso project 期刊论文  iSwitch采集
Nuclear instruments & methods in physics research section a-accelerators spectrometers detectors and associated equipment, 2017, 卷号: 854, 页码: 107-112
作者:  
Li, H. C.;  Yao, Z. G.;  Chen, M. J.;  Yu, C. X.;  Zha, M.
收藏  |  浏览/下载:44/0  |  提交时间:2019/04/23
Reference channel-based microfluidic resistance sensing for single yeast cell volume growth measurement 期刊论文  iSwitch采集
Microfluidics and nanofluidics, 2017, 卷号: 21, 期号: 3, 页码: 9
作者:  
Sun, Jiashu;  Yang, Juekuan;  Gao, Yandong;  Xu, Dongyan;  Li, Deyu
收藏  |  浏览/下载:40/0  |  提交时间:2019/04/23
Study on single-channel signals of water Cherenkov detector array for the LHAASO project 期刊论文  OAI收割
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2017, 卷号: 854, 页码: 107-112
作者:  
LHAASO Collaboration
  |  收藏  |  浏览/下载:27/0  |  提交时间:2019/08/27
面向窄带通信信道的语音质量增强问题研究 学位论文  OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院大学, 2015
作者:  
收藏  |  浏览/下载:105/0  |  提交时间:2015/09/02
Multi-channel high-speed TDICCD image data acquisition and storage system (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on E-Product E-Service and E-Entertainment, ICEEE2010, November 7, 2010 - November 9, 2010, Henan, China
作者:  
Li Y.;  Li Y.;  Li Y.;  Li Y.
收藏  |  浏览/下载:31/0  |  提交时间:2013/03/25
For multi-channel high-speed image data of certain space remote sensing camera  this paper proposed a new image data acquisition and storage system. First of all  the system uses Field-Programmable Gate Array(FPGA) controlling synchronous dynamic random access memory(SDRAM) array to realize the cache of image data  then according to the received commands  sends certain channel's image data to the acquisition card to write the image data into SCSI hard disk and implements the final storage. A Time Delay Integral Charge Couple Device(TDICCD) image data acquisition and storage system with five channels is developed  pixel clock rate is up to 96MHz  total effective data rate is up to 2.88Gb/s  single channel storage depth is up to 7810 lines. The experimental results indicate that this system work stably  high effectively which can meet the requirement of acquisition and storage of multi-channel high-speed TDICCD image data. 2010 IEEE.  
Transceiving protocol designc for a free space optical communication system (EI CONFERENCE) 会议论文  OAI收割
2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, November 16, 2008 - November 19, 2008, Beijing, China
Hualong W.; Wanxin S.; Zhongbao X.
收藏  |  浏览/下载:61/0  |  提交时间:2013/03/25
A new transceiving protocol is demonstrated for a Free Space Optical (FSO) communication system  and it's discussed in two parts: the transmitting protocol and the receiving protocol. During the discussion of these two parts  the cooperation of them is also discussed. Different from wired communication  an FSO system modulates the data on a narrow beam of laser transmitting through the free space or the atmosphere  and the protocol presented in this paper is mainly optimized for terrestrial Free Space Optical links  in which the signal channel of the system is mainly the atmosphere. Due to the complex composition and activity of the atmosphere  this signal channel brings in great influence on the transmitting laser in it  for example  the absorption and scattering of the atmosphere molecules and aerosols  the scintillation of received laser power caused by the turbulence of the atmosphere  all of which results in a much higher Bit Error Rate (BER) of the communication system. Thus in designing a protocol for an FSO system  more effort should be taken in the encoding of the data stream  the synchronization of the data stream  error checking and exception handling. The main function of the transmitting protocol includes interfacing the outer input data with a parallel port  buffering the input data  encoding the input data stream  serializing the parallel data and output the serialized data. It also has an output management unit to manage the activity of each part of the transmitting protocol. The main function of the receiving protocol includes filtering and synchronizing the input serial data stream  paralleling the serial data stream  decoding the input data  error checking  exception handling and interfacing the outer receiver with a parallel port. The entire transceiving protocol could be programmed into a single FPGA chip to improve system integrity and reduce the system cost. The presented protocol could be taken as "protocol transparent" for outer interfaces  meaning that when interfacing the presented system to an outer system  you don't have to consider what protocol the outer system transceiving data stream is under  for example  the TCP/IP protocol or anything else  in the case that its I/O interface is a parallel port. Simulation and final experiment prove that the protocol presented is working fine at a certain bit rate scale. 2009 SPIE.  
Combined effects of crystallographic orientation, stacking fault energy and grain size on deformation twinning in fcc crystals 期刊论文  OAI收割
Philosophical Magazine, 2008, 卷号: 88, 期号: 24, 页码: 3011-3029
W. Z. Han; Z. F. Zhang; S. D. Wu; S. X. Li
收藏  |  浏览/下载:20/0  |  提交时间:2012/04/13
Influences of crystallographic orientations on deformation mechanism and grain refinement of Al single crystals su ected to one-pass equal-channel angular pressing 期刊论文  OAI收割
Acta Materialia, 2007, 卷号: 55, 期号: 17, 页码: 5889-5900
W. Z. Han; Z. F. Zhang; S. D. Wu; S. X. Li
收藏  |  浏览/下载:17/0  |  提交时间:2012/04/13