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	Viral Characteristics of the Warm Atlantic and Cold Arctic Water Masses in the Nordic Seas 期刊论文 OAI收割 APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 2021, 卷号: 87, 期号: 22, 页码: 18 作者: Gao, Chen; Xia, Jun; Zhou, Xinhao; Liang, Yantao; Jiang, Yong \| 收藏 \| 浏览/下载：29/0 \| 提交时间：2022/01/05 DNA virome Nordic Seas microbial community metagenomics water masses and currents
	Hualong Complex, South Qilian terrane: U-Pb and Lu-Hf constraints on Neoproterozoic micro-continental fragments accreted to the northern Proto-Tethyan margin 期刊论文 OAI收割 PRECAMBRIAN RESEARCH, 2015, 卷号: 266, 页码: 65-85 作者: Yan, Zhen; Aitchison, Jonathan; Fu, Changlei; Guo, Xianqing; Niu, Manlan \| 收藏 \| 浏览/下载：25/0 \| 提交时间：2017/12/07 Hualong Complex Neoproterozoic South Qilian terrane Subduction-accretion Proto-Tethyan Ocean
	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：40/0 \| 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.