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运动的目标圆盘的轮廓和圆心提取方法研究

激光杂志 2010年第4期31卷 24-26页

作者：金涛贾宏志 NAGAL Norihiro FUJII Yusaku MARU Koichi SHIMADA Kazuhito 上海市现代光学系统重点实验室上海理工大学光电信息与计算机工程学院上海200093 Department of Electronic Engineering Faculty of Engineering Gunma University Gunma 276- 8515 Japan Medical Operations Japan Aerospace Exploration Agency （JAXA） JAXA Houston Office Houston 77058 USA

文章研究了在运动状态下提取目标匹配点圆盘及其圆心的方法。对视频流采用背景差和相邻帧差法获得运动物体的运动参数,采用随机Hough变换对较小区域进行圆检测,检测的结果中包含真圆和假圆。在运动过程中随着光照和位置的变化真假圆圆... 详细信息

文章研究了在运动状态下提取目标匹配点圆盘及其圆心的方法。对视频流采用背景差和相邻帧差法获得运动物体的运动参数,采用随机Hough变换对较小区域进行圆检测,检测的结果中包含真圆和假圆。在运动过程中随着光照和位置的变化真假圆圆内的灰度也发生变化,因为本文结合圆内灰度值统计来判别目标圆。并根据判别出的目标圆来计算出圆盘的圆心。实验验证了上述方法的有效性,给出了检测结果并统计了目标圆心在整个视频中的像素运动轨迹。

关键词：光学测量运动估计随机Hough变换圆形检测灰度变化

温度测量结果表明日本东北地区近海断层存在低速同震摩擦

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国际地震动态 2015年第8期36卷 3-8页

作者： P M Fulton E E Brodsky Y Kano J Mori F Chester T Ishikawa R N Harris W Lin N Eguchi S Toczko 343T和KR13-08勘查队科技人员王林 Department of Earth and Planetary Sciences University of California Disaster Prevention Research Institute Kyoto University Center for Tectonophysics Department of Geology and GeophysicsTexas A&M University Kochi Institute for Core Sample Research Japan Agency for Marine-Earth Science and Technology Oregon State University Center for Deep Earth exploration Japan Agency for Marine-Earth Science and Technology 福建省地震局

断层在滑动时的摩擦阻力控制了地震动力学。地震期间摩擦过程释放热量。因此,地震后的断层温度反映了摩擦程度。日本海沟快速钻井项目(japan Trench Fast Drilling Project,JFAST)(综合海洋钻探计划((Integrated Ocean Drilling Program... 详细信息

断层在滑动时的摩擦阻力控制了地震动力学。地震期间摩擦过程释放热量。因此,地震后的断层温度反映了摩擦程度。日本海沟快速钻井项目(japan Trench Fast Drilling Project,JFAST)(综合海洋钻探计划((Integrated Ocean Drilling Program,IODP)343和343T勘探)在2011年3月日本东北地区近海MW9.0地震16个月后,在海沟附近的断层带上钻孔安装了钻孔温度观测仪,该断层带在地震中滑动了约50m。运行9个月后,回收了全部的传感器组。结果发现板块边界断层的异常温度为0.31℃,相当于地震时每平方米释放了27 MJ热量。该研究结果的表面摩擦系数0.08明显小于大多数岩石的静态值。

关键词：温度测量摩擦过程日本海沟东北地区断层带近海 Program 低速

Three-dimensional in situ stress determination by anelastic strain recovery and its application at the Wenchuan Earthquake Fault Scientific Drilling Hole-1(WFSD-1)

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Science China Earth Sciences 2014年第3期57卷 1212-1220页

作者： SUN DongSheng LIN WeiRen CUI JunWen WANG HongCai CHEN QunCe MA YinSheng WANG LianJie Institute of Geomechanics Chinese Academy of Geological Sciences Key Laboratory of Neotectonic Movement and Geohazard Ministry of Land and Resources Kochi Institute for Core Sample Research Japan Agency for Marine-Earth Science and Technology (JAMSTEC) State Key Laboratory for Continental Tectonics and Dynamics Institute of Geology Chinese Academy of Geological Sciences

In situ stress state becomes more and more significant with in-depth research on geodynamics and energy ***,there has not been an economic and effective method developed to determine deep three-dimensional in situ *** Anelastic Strain Recovery(ASR)method is a newly developed technique that can determine three-dimensional in situ *** the 12 May 2008 Ms8.0 Wenchuan earthquake,the ASR method was used for the first time in China's Mainland to measure the in situ stresses in the WFSD scientific boreholes in Sichuan Province,*** this paper,the basic procedure of the ASR method is introduced in detail and the compliances of ASR for boring cores are *** results show that the maximum principal stress direction was NW64°at a measured depth(MD)of 1173 m(vertical depth 1151 m)in *** ratio of shear mode to the volume mode compliance of ASR was *** the three principal stresses at 1173 m MD in WFSD-1are 43,28 and 25 *** with stress measurement results determined using other in situ measurement methods along the Longmenshan fault zone,the directions of the maximum horizontal principal stress changes from E-W to NEE-SWW to NWW-SEE when moving from NE to SW along the Longmenshan fault *** change is in agreement with the stress regime of the Longmenshan fault zone of the Wenchuan Earthquake,which supports a stress regime consisting predominantly of thrusts in the southwest and strike-slip in the northeast.

关键词： Wenchuan earthquake anelastic strain recovery compliance of anelastic strain recovery three-dimensional in situ stress scientific borehole

Science Missions Using CubeSats

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空间科学学报 2020年第4期40卷 443-461页

作者： SEYEDABADI M E FALANGA M AZAM M BARESI N FLÉRON R JANTARACHOTE V JUAREZ ORTIZ V A JULCA YAYA J J LANGER M MANUTHASNA S MARTINOD N MUGHAL M R NOMAN M PARK J PIMNOO A PRAKS J REYNERI L SANNA A ŞIŞMAN TÇ SOME J ULAMBAYAR T YU Xiaozhou DONG Xiaolong BALDIS L Asia-Pacific Space Cooperation Organization 100070 BeijingChina International Space Science Institute-Beijing 100190 BeijingChina International Space Science Institute 3012 BernSwitzerland Bangladesh Space Research and Remote Sensing Organization 1207 DhakaBangladesh japan Aerospace exploration agency Institute of Space Astronautical Science252-5210 TokyoJapan Technical University of Denmark 2800 LyngbyDenmark Department of Electrical Engineering Faculty of EngineeringPrince of Songkla University90112 SongkhlaThailand National Commission of Aerospace Research and Development 15046 San IsidroPeru Technical University of Munich 80333 MunichGermany Mahanakorn University of Technology 10530 BangkokThailand Swiss Federal Institute of Technology Lausanne 1015 LausanneSwitzerland Institute of Space Technology 44000 IslamabadPakistan Korea Astronomy and Space Science Institute 34055 DaejeonSouth Korea Geo-Informatics and Space Technology Development agency 10210 BangkokThailand Department of Electronics and Nanoengineering Aalto University02150 EspooFinland Department of Electronics and Telecommunications Polytechnic of Turin10129 TurinItaly Department of Physics University of Cagliari09042 MonserratoItaly Department of Astronautical Engineering University of Turkish Aeronautical Association06790 AnkaraTurkey Nanosatellite Development Laboratory National University of Mongolia210646 UlaanbaatarMongolia Dalian University of Technology 116024 DalianChina National Space Science Center 100190 BeijingChina

As the role of missions and experiments carried out in outer space becomes more and more essential in our understanding of many earthly problems,such as resource management,environmental problems,and disaster management,as well as space science questions,thanks to their lower cost and faster development process CubeSats can benefit humanity and therefore,young scientists and engineers have been motivated to research and develop new CubeSat *** very long after their inception,CubeSats have evolved to become accepted platforms for scientific and commercial *** last couple of years showed that they are a feasible tool for conducting scientific experiments,not only in the Earth orbit but also in the interplanetary *** many countries,a CubeSat mission could prompt the community and young teams around the world to build the national capacity to launch and operate national space *** paper presents an overview of the key scientific and engineering gateways opened up to the younger scientific community by the advent and adaptation of new technology into CubeSat *** role of cooperation and the opportunities for capacity-building and education are also ***,the present article also aims to provide useful recommendations to scientists,early-career researchers,engineers,students,and anyone who intends to explore the potential and opportunities offered by CubeSats and CubeSats-based missions.

关键词： CubeSat Space science Small satellites for space science Education Earth observation

Gravity Survey on the Mizuho Plateau, East Antarctica: SEAL Seismic exploration in 2001-2002

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International Journal of Geosciences 2014年第2期5卷 146-155页

作者： Shigeru Toda Hiroki Miyamachi Masaki Kanao Takeshi Matsushima Masamitsu Takada Atsushi Watanabe Mikiya Yamashita Department of Earth and Environmental Sciences Faculty of Science Kagoshima University Kagoshima Japan Department of Earth Sciences Faculty of Education Aichi University of Education Kariya Japan Earthquake Research Institute The University of Tokyo Tokyo Japan Institute for Research on Earth Evolution Japan Agency for Marine-Earth Science and Technology Yokohama Japan Institute of Seismology and Volcanology Graduate School of Science Hokkaido University Sapporo Japan National Institute of Polar Research Tokyo Japan Shimabara Observatory Institute of Seismology and Volcanology Faculty of Sciences Kyushu University Shimabara Japan

A gravity survey on Mizuho Plateau was carried out in austral summer of 2001-2002 by the 43rd japanese Antarctic Research Expedition (JARE-43), as one of the geophysical measurements of deep seismic exploration. Gravity measurements were conducted at 151 points in approximately 1 km interval along the 150 km profile. Considering the gravity effect from the ice-sheet, Free-air and Bouguer anomalies were calculated by using precise GPS locations. Furrowed and basin-like negative Free-air anomalies were observed in middle and northern parts of the profile. Bouguer anomalies were calculated by two bedrock elevation data obtained from seismic refraction and radio-echo sounding. High resolution model for bedrock elevation by radio-echo sounding was applied in determining the crustal thickness.

关键词： Gravity Survey Mizuho Plateau Bedrock Elevation Bouguer Gravity Anomaly Crustal Thickness

Quaternary primary productivity in Porcupine Seabight,NE North Atlantic

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Science China Earth Sciences 2012年第2期55卷 306-314页

作者： LI XiangHui Akihiro KANO CHEN YunHua Chiduru TAKASHIMA XU WenLi XU BaoLiang WANG RuiJian State Key Laboratory of Enhanced Oil Recovery Institute of Petroleum Exploration&DevelopmentChina National Petroleum CorporationBeijing 100083China Graduate School of Social and Cultural Studies Kyushu University4-2-1 RopponmatsuFukuoka 810-8560Japan School of Earth Sciences and Engineering Nanjing UniversityNanjing 210093China Geological Science Research Institute of Shengli Oilfield SINOPECDongying 257015China Environment Studies Faculty of Culture and EducationSaga University1 Honjo-machiSaga 840-8502Japan Institute of Sedimentary Geology Chengdu University of TechnologyChengdu 610059China Sichuan Research Centre Bureau of Geophysical Prospecting of China National Petroleum CorporationChengdu 610051China State Key Laboratory of Marine Geology Tongji UniversityShanghai 200092China

Biogenic opal and calcium carbonate contents in the Quaternary fine-grained sediments in the deep sea coral mound area (Hole U1317E and Hole U1318B drilled by IODP Expedition 307) in Porcupine Seabight, southwest off Ireland, were measured to estimate the primary productivity (Pp) of the surface seawater in NE Atlantic. The results from the two holes commonly show relatively high Pp values of 10-30 g cm-2 ky-1, having stratigraphic cyclicity reversely correlated with the δ13C profile. The high Pp could be attributed to the oceanic setting controlled by the Eastern North Atlantic (Central) Water and Shelf Edge Current, which have been strongly influenced by the obliquity forcing of the Milankovitch cycle. A positive covariance was observed between high Pp and the mound development in U1317E, implying that the organic matter was the principal food source for the mound coral community. It is proposed that the pelagic marl matrix of the mound sediments provides information of the surface water productivity that is useful for reconstructing the paleoceanography and the paleoclimate in the NW Atlantic.

关键词： primary productivity biogenic opal calcium carbonate Quaternary IODP 307 Porcupine Seabight North Atlantic

Estimation of aerosol properties over the Chinese desert region with MODIS AOD assimilation in a global model

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Advances in Climate Change Research 2016年第1期7卷 90-98页

作者： YIN Xiao-Mei DAI Tie XIN Jin-Yuan GONG Dao-Yi YANG Jing TERUYUKI Nakajima SHI Guang-Yu State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Chinese Academy of Sciences College of Earth Science University of the Chinese Academy of Sciences Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science and Technology State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric Physics Chinese Academy of Sciences State Key Laboratory of Earth Surface Processes and Resource Ecology (ESPRE) Beijing Normal University Earth Observation Research Center Japan Aerospace Exploration Agency

A Local Ensemble Transform Kalman Filter assimilation system has been implemented into an aerosol-coupled global nonhydrostatic model to simulate the aerosol mass concentration and aerosol optical properties of 3 desert sites(Ansai, Fukang, Shapotou) in northwestern China. One-month experiment results of April 2006 reveal that the data assimilation can correct the much overestimated aerosol surface mass concentration, and has a strong positive effect on the aerosol optical depth(AOD) simulation, improving agreement with observations. Improvement is limited with the?ngstr€om Exponent(AE) simulation, except for much improved correlation coefficient and model skill scores over the Ansai site. Better agreement of the AOD spatial distribution with the independent observations of Terra(Deep Blue) and Multi-angle Imaging Spectroradiometer(MISR) AODs is obtained by assimilating the Moderate Resolution Imaging Spectroradiometer(MODIS) AOD product, especially for regions with AODs lower than 0.30. This study confirms the usefulness of the remote sensing observations for the improvement of global aerosol modeling.

关键词： Aerosol properties Aerosol assimilation Moderate Resolution Imaging Spectroradiometer Multi-angle Imaging Spectroradiometer PM10

Proposal of Lunar GIS with Visualized and Auditory Data of japan＇s Lunar Explorer ＂KAGUYA （SELENE）＂

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通讯和计算机（中英文版） 2010年第1期7卷 63-68页

作者： Shin-ichi Sobue Hiroshi Araki Seiichi Tazawa Hirotomo Noda Izumi Kamiya Aya Yamamoto Takeo Fujita Ichiro Higashiizumi Hayato Okumura japan Aerospace exploration agency Ibaraki 305-8505 Japan National Astronomical Observation of japan Oshu lwate 023-0861 Japan Geographical Survey Institute Ibaraki 305-0811 Japan Remote Sensing Technology Center of japan Tokyo 106-0032 Japan Moonbell Project Tokyo 150-0001 Japan

This paper describes an application of a geographical information system with visualized and signification lunar remote sensing data provided by japan s lunar explorer (SELENE KAGUYA ). Web based GIS is a very powerful tool which lunar scientists can use to visualize and access remote sensing data with other geospatial information. We discuss enhancement of the pseudo-colored visual map presentation of lunar topographical altimetry data derived from LALT and the map of the data to several sound parameters (Interval, harmony, and tempo). This paper describes an overview of this GIS with a sonification system, called Moonbell .

关键词：地理信息系统月球探测器可视化月亮日本听觉空间信息数据数据映射

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全球气溶胶光学特性模式模拟和资料同化

全球气溶胶光学特性模式模拟和资料同化