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An FPGA-based face recognition using combined 5/3 DWT with PCA methods

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通讯和计算机（中英文版） 2009年第10期6卷 1-7,22页

作者： dake chen HAN Jiu-qiang School of Electronics and Information Engineering Xi ＇an Jiaotong University Xi ＇an 710049 China

Improving Arctic Sea-Ice Thickness Estimates with the Assimilation of CryoSat-2 Summer Observations

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Ocean-Land-Atmosphere Research 2023年第1期2卷 298-308页

作者： Chao Min Qinghua Yang Hao Luo dake chen Thomas Krumpen Nabir Mamnun Xiaoyu Liu Lars Nerger School of Atmospheric Sciences Sun Yat-sen Universityand Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)ZhuhaiChina Alfred Wegener Institute Helmholtz Centre for Polar and Marine ResearchBremerhavenGermany

Rapidly shrinking Arctic sea ice has had substantial impacts on the Earth ***,reliably estimating the Arctic sea-ice thickness(SIT)using a combination of available observations and numerical modeling is urgently ***,for the first time,we assimilate the latest CryoSat-2 summer SIT data into a coupled ice-ocean *** particular,an incremental analysis update scheme is implemented to overcome the discontinuity resulting from the combined assimilation of biweekly SIT and daily sea-ice concentration(SIC)*** with improved estimates of sea-ice volume,our SIT estimates corrected the overestimation of SIT produced by the reanalysis that assimilates only SIC in summer in areas where the sea ice is roughest and experiences strong deformation,e.g.,around the Fram Strait and *** study suggests that the newly developed CryoSat-2 SIT product,when assimilated properly using our approach,has great potential for Arctic sea-ice simulation and prediction.

关键词： prediction Arctic CryoSat

Share Promising Ideas,Explore New Frontiers

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Ocean-Land-Atmosphere Research 2022年第1期1卷 71-72页

作者： dake chen Robert W.Howarth Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519082China Cornell University IthacaNY 14853-2701USA

The ocean is the foundation of life and plays a key role in the Earth’s changing climate and ecosystem,but its vast span and complex workings are still far from being fully *** is intrinsically a multidisciplinary science,aiming at understanding the physical,biological,chemical,and geological processes in the ocean,as well as the interactions among them.

关键词： ocean Earth climate

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厄尔尼诺-南方涛动研究新进展

科学通报 2020年第35期65卷 4001-4003页

作者：陈大可连涛自然资源部第二海洋研究所卫星海洋环境动力学国家重点实验室杭州310012 南方海洋科学与工程广东省实验室(珠海) 珠海519000 上海交通大学海洋学院上海200240

厄尔尼诺-南方涛动(ENSO)是地球气候系统中最强烈的年际振荡,对包括我国在内的全球大部分地区的天气及气候有举足轻重的影响,因而长期以来一直是海洋与大气科学研究的焦点.在National Science Review(《国家科学评论》)2018年第5卷第6期... 详细信息

厄尔尼诺-南方涛动(ENSO)是地球气候系统中最强烈的年际振荡,对包括我国在内的全球大部分地区的天气及气候有举足轻重的影响,因而长期以来一直是海洋与大气科学研究的焦点.在National Science Review(《国家科学评论》)2018年第5卷第6期的ENSO专题上,多位科学家对ENSO的理论、预测、影响等方面的研究进展做了全方位的综述[1~3],并探讨了ENSO在古气候和全球变暖背景下的变化、ENSO与热带气旋的相互作用、ENSO观测系统的建设与改进等前沿科技问题[4~7].

关键词：大气科学研究热带气旋观测系统年际振荡 ENSO 前沿科技全球变暖古气候

Intelligent Swift Ocean Observing System

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Ocean-Land-Atmosphere Research 2023年第1期2卷 264-266页

作者： Chao Dong dake chen Dongxiao Wang Wen Xu Tao Lian Shilu Dai Yunfei Zhang Ce Zheng Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519000China Key Laboratory of Marine Environmental Survey Technology and Application Ministry of Natural ResourcesGuangzhou 510300China Second Institute of Oceanography Ministry of Natural ResourcesHangzhou 310012China School of Marine Science Sun Yat-sen UniversityZhuhai 519000China Zhejiang Provincial Key Laboratory of Ocean Observation-Imaging Testbed Ocean AcademyZhejiang UniversityZhoushan 316021China School of Automation Science and Engineering South China University of TechnologyGuangzhou 510641China Zhuhai Yunzhou Intelligence Technology Co.Ltd. Zhuhai 519000China

Field observations are essential for the advancement of marine science and *** all breakthroughs in the history of oceanography were propelled by innovations in observing *** example,the invention of deep-sea submersibles led to the discovery of hydrothermal vents and associated dark biosphere[1,2],the launch of ocean observing satellites made it possible to view the state and variability of global surface ocean in a quasi-simultaneous fashion[3,4],and the construction of the global network of Argo profiling floats greatly improved monitoring,understanding,and prediction of the large-scale ocean circulation and climate change[5].Nevertheless,existing ocean observing technologies are still far from fully meeting the needs of scientific research and engineering application,and new innovations are constantly in demand.

关键词： ocean prediction Swift

Advances in research of the mid-deep South China Sea circulation

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Science China Earth Sciences 2019年第12期62卷 1992-2004页

作者： Dongxiao WANG Qiang WANG Shuqun CAI Xiaodong SHANG Shiqiu PENG Yeqiang SHU Jingen XIAO Xiaohui XIE Zhiwei ZHANG Zhiqiang LIU Jian LAN dake chen Huijie XUE Guihua WANG Jianping GAN Xinong XIE Rui ZHANG Hui chen Qingxuan YANG State Key Laboratory of Tropical Oceanography South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China School of Marine Science and Technology Tianjin UniversityTianjin 300072China State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of OceanographyMNRHangzhou 310012China Key Laboratory of Physical Oceanography MOEOcean University of ChinaQingdao 266003China Department of Ocean Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Institute of Atmospheric Sciences Fudan UniversityShanghai 200438China Department of Mathematics and Division of Environment Hong Kong University of Science and TechnologyHong Kong 999077China College of Marine Science and Technology China University of GeosciencesWuhan 430074China College of Oceanic and Earth Xiamen UniversityXiamen 361102China

The South China Sea(SCS)is a large marginal sea connecting the Indian and Pacific *** the factors of monsoons,strait transport,and varied bathymetry,the SCS presents a three-layer structure and strong diapycnal mixing which is far greater than that in the open *** analysis and observations reveal that internal tides,internal solitary waves,and strong winds are the sources of the strong mixing in the northern SCS.A major consequence of the strong mixing is an active mid-deep circulation *** system promotes exchange of water between the SCS and adjacent oceans,and also regulates the upper layer of wind-driven circulation,making the 3 dimensional SCS circulation clearly different from that in other tropical and subtropical marginal *** mass transport capacity of the mid-deep circulation has a substantial impact on marine sedimentation,the biogeochemical cycle,and other processes in the *** paper summarizes the recent advances in middeep sea circulation dynamics of the SCS,and discusses the opportunities and challenges in this area.

关键词： Mid-deep South China Sea circulation Diapycnal mixing Multi-scale processes interaction

基于MATLAB的定点DSP小波变换程序设计方法

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数据采集与处理 2006年第B12期21卷 86-89页

作者：陈大科韩九强西安交通大学电子与信息工程学院西安710049

在Matlab/Simulink环境下,用图形方式设计数字信号处理器(Digital signal processors,DSP)的程序,以及采用多比率滤波函数(Multirate filters)实现DWT及IDWT的Mallat算法,简化了DSP的小波变换程序设计。文中给出了设计实例,用Matlab作辅助工具,设计db2小波变换,并对DSP的A/D转换结果进行滤波处理,再将设计的文件转换成C语言程序,经修改编译后在DSP目标板上运行。设计的程序在TMS320LF2407A处理器上运行正确,实现了小波滤波功能。

关键词：小波变换数字信号处理器 Matlab 阈值消噪

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劳资矛盾预警机制中的政府职能研究

华东理工大学学报（社会科学版） 2012年第1期27卷 103-110页

作者：吴亮陈大可华东理工大学法学院上海200237 上海市浦东新区人力资源与社会保障局上海200000

政府在劳资矛盾预警机制中具有"发现"和"预防"群体性劳资纠纷突发事件的职能。本文提出"预警机制+群体性事件应急处理"的二重结构,旨在协调政府在劳资争议中兼具的"调停者"与"执法者"双重角色。然后,讨论了预警程序的监控对象、启动指... 详细信息

政府在劳资矛盾预警机制中具有"发现"和"预防"群体性劳资纠纷突发事件的职能。本文提出"预警机制+群体性事件应急处理"的二重结构,旨在协调政府在劳资争议中兼具的"调停者"与"执法者"双重角色。然后,讨论了预警程序的监控对象、启动指标及标准。最后,分析了强制调查权的侵权风险,提出确保企业调解委员会的主体合法性、为行政机关设定"保密义务"等规避措施。

关键词：劳资矛盾预警政府职能强制调查权

Review on observational studies of western tropical Pacific Ocean circulation and climate

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Journal of Oceanology and Limnology 2020年第4期38卷 906-929页

作者： HU Dunxin WANG Fan SPRINTALL Janet WU Lixin RISER Stephen CRAVATTE Sophie GORDON Arnold ZHANG Linlin chen dake ZHOU Hui ANDO Kentaro WANG Jianing LEE Jae-Hak HU Shijian WANG Jing ZHANG Dongxiao FENG Junqiao LIU Lingling VILLANOY Cesar KALUWIN Chalapan QU Tangdong MA Yixin Key Laboratory of Ocean Circulation and Waves Institute of OceanologyChinese Academy of SciencesQingdao 266071China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China Pilot National Laboratory for Marine Science and Technology(Qingdao) Qingdao 266237China Scripps Institution of Oceanography University of CaliforniaSan DiegoLa JollaCalifornia 92093USA Ocean University of China Qingdao 266100China School of Oceanography University of WashingtonSeattle WA 98195-7940USA LEGOS Universitéde ToulouseIRDCNESCNRSUPSToulouse 31520France Lamont‐Doherty Earth Observatory Columbia UniversityPalisadesNew York 10027USA State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of OceanographyMinistry of Natural Resources(MNR)Hangzhou 310012China Research and Development Center for Global Change Japan Agency for Marine‐Earth Science and TechnologyYokosuka 237-0061Japan Ocean Circulation and Climate Research Korea Institute of Ocean Science and TechnologyBusan 49111Korea Joint Institute for the Study of the Atmosphere and Ocean University of WashingtonSeattleWashington 98195USA Marine Science Institute University of the PhilippinesDilimanQuezon City 1101Philippines School of Natural and Physical Sciences University of Papua New GuineaPortmoresby 134Papua New Guinea Joint Institute for Regional Earth System Sciences and Engineering University of CaliforniaLos Angeles CA 90095USA

The Western Tropical Pacific(WTP) Ocean holds the largest area of warm water(>28℃) in the world ocean referred to as the Western Pacific Warm Pool(WPWP),which modulates the regional and global climate through strong atmospheric convection and its *** WTP is unique in terms of its complex 3-D ocean circulation system and intensive multiscale variability,making it crucial in the water and energy cycle of the global *** advances have been made in understanding the complexity of the WTP ocean circulation and associated climate impact by the international scientific community since the 1960 s through field *** this study,we review the evolving insight to the 3-D structure and multi-scale variability of the ocean circulation in the WTP and their climatic impacts based on in-situ ocean observations in the past decades,with emphasis on the achievements since *** challenges and open que stions remaining are reviewed as well as future plan for international study of the WTP ocean circulation and climate.

关键词： Western Tropical Pacific(WTP) ocean circulation climate observation