中国科学院机构知识库网格系统: 检索

Fostering public climate change discussions from a social interaction perspective 期刊论文 OAI收割
FRONTIERS IN PSYCHOLOGY, 2023, 卷号: 14, 页码: 9
作者: Tian, Jianchi; Zheng, Xiaoqing; Sun, Yan

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收藏 | 浏览/下载：20/0 | 提交时间：2023/10/20

climate change discussion social interaction social norm response efficacy self-efficacy

Technological innovation of semi-airborne electromagnetic detection method 期刊论文 OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2021, 卷号: 64, 期号: 9, 页码: 2995-3004
作者: Lin Jun; Xue GuoQiang; Li Xiu

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收藏 | 浏览/下载：28/0 | 提交时间：2021/11/01

Semi-airborne electromagnetic method Deep exploration Innovative technology Analysis and discussion

The relationship between failure mechanism of nickel-rich layered oxide for lithium batteries and the research progress of coping strategies: a review 期刊论文 OAI收割
IONICS, 2021, 页码: 36
作者: Zhu, Boyuan; Yu, Zhihui; Meng, Long; Xu, Ziyang; Lv, Caixia

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收藏 | 浏览/下载：117/0 | 提交时间：2021/08/31

Lithium-ion battery Nickel-rich layered oxide Mechanism discussion Modification strategy Density functional theory simulation

Twitter Discussions and Emotions About the COVID-19 Pandemic: Machine Learning Approach 期刊论文 OAI收割
JOURNAL OF MEDICAL INTERNET RESEARCH, 2020, 卷号: 22, 期号: 11, 页码: 14
作者: Xue, Jia; Chen, Junxiang; Hu, Ran; Chen, Chen; Zheng, Chengda

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收藏 | 浏览/下载：54/0 | 提交时间：2021/03/01

machine learning Twitter data COVID-19 infodemic infodemiology infoveillance public discussion public sentiment Twitter social media virus

Communication synchronization in wireless optical link (EI CONFERENCE) 会议论文 OAI收割
2012 International Conference on Control Engineering and Communication Technology, ICCECT 2012, December 7, 2012 - December 9, 2012, Shenyang, Liaoning, China
作者: Guo J.; Guo J.; Wang H.; Wang H.; Wang H.

收藏 | 浏览/下载：36/0 | 提交时间：2013/03/25

An FPGA based transceiving synchronization method is demonstrated for Free Space Optical (FSO) communication system which is discussed separately as the transmitting protocol and the receiving protocol. During the discussion of these two parts the co-operation of them is also discussed. The transmitting protocol interfaces the outer input data with a parallel port buffers the input data encodes the input data stream serializes the parallel data and outputs the serialized data. It also has an output management unit to manage the activity of each part of the transmitting protocol. The receiving protocol filters and synchronizes the input serial data stream parallels the serial data stream decodes the input data checks received error handles transmission exception and interfaces 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 users 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 a working solution at a certain bit rate scale. 2012 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.

Non-contact and on-line cone diameter measuring based on high speed linear CCD (EI CONFERENCE) 会议论文 OAI收割
2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 2, 2005 - November 5, 2005, Zian, China
Guohui Z.; Jianhua W.

收藏 | 浏览/下载：46/0 | 提交时间：2013/03/25

The remarkable improvement of sensing and processing hardware performance makes the non-contact on-line high accuracy and high speed measuring possible by means of linear CCD. The goal of this pager is to describe the key questions on designing the cone diameter detecting system by linear CCD. This paper first describes the detecting scheme. In particular the factors affecting accuracy such as resolution voltage difference between neighbor pixels detecting rate and so on are analyzed and the quantitative estimation equations are provided. CCD takes on the photoelectric translation and measuring component double functions so the waveform of CCD output signal and the affecting factors merit deep discussion. On the basis of discussion several principles that can be used to improve the boundary recognition accuracy are presented.

The signal extraction of fetal heart rate based on wavelet transform and BP neural network (EI CONFERENCE) 会议论文 OAI收割
Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics, November 29, 2004 - December 1, 2004, Singapore, Singapore
Hong Y. X.; Cheng Z. B.; Dai F. H.

收藏 | 浏览/下载：31/0 | 提交时间：2013/03/25

This paper briefly introduces the collection and recognition of bio-medical signals the other threading is analyzing data. Using the method designs the method to collect FM signals. A detailed discussion on the system hardware it is broaden to analyze the signal in real-time. Wavelet transform to remove the main interference in the FM and by adding time-window to recognize with BP network structure and functions is also given. Under LabWindows/CVI Finally the results of collecting signals and BP networks are discussed.8 pregnant women's signals of FM were collected successfully by using the sensor. The correctness rate of BP network recognition is about 83.3% by using the above measure. the hardware and the driver do compatible the hardware equipment work properly actively. The paper adopts multi threading technology for real-time analysis and makes use of latency time of CPU effectively expedites program reflect speed improves the program to perform efficiency. One threading is collecting data

关于Skyrme模型的一些新结果(英文) 期刊论文 OAI收割
中国科学技术大学学报, 1988, 期号: 5, 页码: 510-514
作者: 李炳安; 沈齐兴; 阎沐霖

收藏 | 浏览/下载：17/0 | 提交时间：2015/12/10

topological Skyrme discussion comes compatible continue determ soliton 石丁 quantities

TWO-NUCLEON ABSORPTION MECHANISM OF PION IN FLIGHT 期刊论文 OAI收割
A Monthly Journal of Science, 1982, 期号: 6, 页码: 939-943
作者: Jiang HQ(姜焕清); Li YG(李扬国)

收藏 | 浏览/下载：19/0 | 提交时间：2015/12/10

spite earlier stopped inclusive discussion absorbed encouraging gross momentum slowdown