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中国地学会与科学地理的构建(1909—1911) 被引量:5
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作者 谢皆刚 《中山大学学报(社会科学版)》 CSSCI 北大核心 2016年第4期73-82,共10页
光宣之际新学萌发,旧学陵替,构建新知识成为学界当务之急。中国地学会舍旧谋新,倡言构建能与世界争先并进的科学地理。为此,其定调查为会员的义务,以植学术根基。基于新学眼光,中国是科学方兴的后进,引入东西学理是迎头赶上的前提,地理... 光宣之际新学萌发,旧学陵替,构建新知识成为学界当务之急。中国地学会舍旧谋新,倡言构建能与世界争先并进的科学地理。为此,其定调查为会员的义务,以植学术根基。基于新学眼光,中国是科学方兴的后进,引入东西学理是迎头赶上的前提,地理又是地域性较强的学科,借助外来基本原理与方法解释中国材料是发展学术的必然之路。囿于时代与出身,学会同人在讲求科学新知的同时,仍然深受固有学术的影响,试图以西学地理系统条理中学,贯通中西建立中国地理学统系。学术内外种种因素的叠加,致使科学地理的构建举步维艰,终因时局的变动而中止。 展开更多
关键词 中国地学会 科学地理 构建
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基于新课标的跨学科主题学习活动设计——以生命科学和地理学科为例
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作者 闫颖 《现代教学》 2023年第1期109-110,共2页
本文针对目前跨学科主题学习活动设计中的“跨什么”和“如何跨”的问题,以生命科学和地理学科为例,结合新课标进行了跨学科主题学习活动设计,综合考量了新课标对目标、内容、实施和评价的要求,设计了进阶式的跨学科实践活动“探索治水... 本文针对目前跨学科主题学习活动设计中的“跨什么”和“如何跨”的问题,以生命科学和地理学科为例,结合新课标进行了跨学科主题学习活动设计,综合考量了新课标对目标、内容、实施和评价的要求,设计了进阶式的跨学科实践活动“探索治水密码”,从而引导学生综合运用生物学原理、方法与地理工具创造性解决问题,并形成保护环境、与自然和谐发展的生态观念。 展开更多
关键词 新课标 跨学科设计 生命科学地理
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Molecular Phylogeny and Phylogeography of Suidae 被引量:1
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作者 吴桂生 庞峻峰 张亚平 《Zoological Research》 CAS CSCD 北大核心 2006年第2期197-201,共5页
Although the Suidae animals were one of the most prosperous mammals, their taxa and phylogeny were poorly studied. To bridge this research gap, the complete mitochondrial DNA cyt b sequences (1140 bp)of one red rive... Although the Suidae animals were one of the most prosperous mammals, their taxa and phylogeny were poorly studied. To bridge this research gap, the complete mitochondrial DNA cyt b sequences (1140 bp)of one red river pig ( Potamochoerus porcus ), one bearded pig ( Sus barbatus ), and several Eurasian wild boars ( Sus scorfa ) were determined with direct PCR sequencing method. Incorporated with the sequences of other Suidae species obtained from GenBank, the phylogentic trees of Suidae species were constructed by Neighbor-Joining and Most Parsimony method. Our resuits showed that the babirousa was sister group of all other species. The African species clustered into a single clade, while the Eurasian species formed the other clade. The phylogenetic positions of the Sus species were consistent with their geographical distribution. Based on our phylogeographical results, the Sus species could be classified into three groups: (1) the relatively primitive animals from Philippine Islands (such as S. cebifrons and S. philippensis ), Sulawesi and it's adjacent islands (S. celebensis), (2) the Eurasian wild boars (S. scrofa and the mysterious S. salvanius), and (3) other pigs (such as S. barbatus and S. verrucosus), which might further diverged as the islands type (such as S. barbatus from Sumatra and Borneo) and the continental type (such as Malay Peninsula wild boar). 展开更多
关键词 SUIDAE PHYLOGENY PHYLOGEOGRAPHY Mitochondrial DNA Cytochrome b PIGS
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An Approach to Computer Modeling of Geological Faults in 3D and an Application 被引量:10
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作者 ZHU Liang-feng HE Zheng PAN Xin WU Xin-cai 《Journal of China University of Mining and Technology》 2006年第4期461-465,共5页
3D geological modeling, one of the most important applications in geosciences of 3D GIS, forms the basis and is a prerequisite for visualized representation and analysis of 3D geological data. Computer modeling of geo... 3D geological modeling, one of the most important applications in geosciences of 3D GIS, forms the basis and is a prerequisite for visualized representation and analysis of 3D geological data. Computer modeling of geological faults in 3D is currently a topical research area. Structural modeling techniques of complex geological entities contain- ing reverse faults are discussed and a series of approaches are proposed. The geological concepts involved in computer modeling and visualization of geological fault in 3D are explained, the type of data of geological faults based on geo- logical exploration is analyzed, and a normative database format for geological faults is designed. Two kinds of model- ing approaches for faults are compared: a modeling technique of faults based on stratum recovery and a modeling tech- nique of faults based on interpolation in subareas. A novel approach, called the Unified Modeling Technique for stratum and fault, is presented to solve the puzzling problems of reverse faults, syn-sedimentary faults and faults terminated within geological models. A case study of a fault model of bed rock in the Beijing Olympic Green District is presented in order to show the practical result of this method. The principle and the process of computer modeling of geological faults in 3D are discussed and a series of applied technical proposals established. It strengthens our profound compre- hension of geological phenomena and the modeling approach, and establishes the basic techniques of 3D geological modeling for practical applications in the field of geosciences. 展开更多
关键词 3D geological modeling geological faults STRATUM fault data visualization Beijing Olympic Green District
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Photogrammetry Education for Multidisciplinary Geomatics in China
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作者 ZHU Qing 《Geo-Spatial Information Science》 2006年第4期273-280,305,共9页
After briefly reviews the history of photogrammetry education in China, the development of undergraduate and graduate program, and the corresponding curricula design are analyzed by use of the data from Wuhan Universi... After briefly reviews the history of photogrammetry education in China, the development of undergraduate and graduate program, and the corresponding curricula design are analyzed by use of the data from Wuhan University in which the photogrammetry is awarded as the state-level key discipline. The academic educational program of photogrammetry in universities has trained students to perform tasks in all fields of the photogrammetric profession. In recent years, the nature of photogrammetry is changing and multidisciplinary geomatics are developing very rapidly, the educational program of photogrammetry has also changed in new concepts and structures to adapt very new technologies and the extension of the field. Finally, the prospect of photogrammetry education for the requirements of multidiseiplinary geomatics is proposed. The growing interest in fast and accurate 3D spatial data collection (such as city modeling and digital earth) results in the increasing need of photogrammetry as principal tool, photogrammetric courses are therefore requested to be upto date and to become one kind of the fundamental professional courses for university geomatics and remote sensing degree programs. 展开更多
关键词 PHOTOGRAMMETRY EDUCATION remote sensing GEOMATICS China
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Urban Green Space, Uneven Development and Accessibility: A Case of Dalian′s Xigang District 被引量:3
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作者 YANG Jun LI Chuang +3 位作者 LI Yuechen XI Jianhao GE Quansheng LI Xueming 《Chinese Geographical Science》 SCIE CSCD 2015年第5期644-656,共13页
This study examines the socio-spatial context of uneven development and the residential accessibility of green space in Dalian of Liaoning Province, China. The social fairness was analyzed with a community scale as th... This study examines the socio-spatial context of uneven development and the residential accessibility of green space in Dalian of Liaoning Province, China. The social fairness was analyzed with a community scale as the basis. We combined social scientific methods with a GIS method using a behavior accessibility model from the perspectives of fairness of urban green space allocation based on social geography, geographic information science, management science and many other related discipline theories. The results show that: 1) Most of the urban green space distribution presents an unbalanced phenomenon, and it does not match with the population distribution; 2) We found some differences in the accessibility of the population with different attributes and opportunities to use and enjoy the urban green spaces, mainly due to: the dual social and spatial attributes of the residents and the serious stratum differentiation generated were the internal causes; the residential space differentiation and the pursuit of economic and real estate development were the direct causes; and unreasonable planning, in regard to the fact that government policies did not give consideration to efficiency and fairness, was also an important factor. 展开更多
关键词 behavior accessibility fairness of green space behavior accessibility model Xigang District of Dalian GIS
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Fundamental Theories of Spatial Similarity Relations in Multi-scale Map Spaces 被引量:18
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作者 YAN Haowen 《Chinese Geographical Science》 SCIE CSCD 2010年第1期18-22,共5页
Similarity relation is one of the spatial relations in the community of geographic information science and cartography.It is widely used in the retrieval of spatial databases, the recognition of spatial objects from i... Similarity relation is one of the spatial relations in the community of geographic information science and cartography.It is widely used in the retrieval of spatial databases, the recognition of spatial objects from images, and the description of spatial features on maps.However, little achievements have been made for it by far.In this paper, spatial similarity relation was put forward with the introduction of automated map generalization in the construction of multi-scale map databases;then the definition of spatial similarity relations was presented based on set theory, the concept of spatial similarity degree was given, and the characteristics of spatial similarity were discussed in detail, in-cluding reflexivity, symmetry, non-transitivity, self-similarity in multi-scale spaces, and scale-dependence.Finally a classification system for spatial similarity relations in multi-scale map spaces was addressed.This research may be useful to automated map generalization, spatial similarity retrieval and spatial reasoning. 展开更多
关键词 similarity relation spatial relation multi-scale map spaces
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On the "good understanding" of the Scientific Spirit: The Use of Metaphors and Images in the Physical Sciences
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《Journal of Philosophy Study》 2011年第5期327-333,共7页
In Bachelard's thought, the understanding "of the other" in scientific thought is given usually by means of empirical or rational discourse. However, it is not unusual to realize the emphasis of scientific thought ... In Bachelard's thought, the understanding "of the other" in scientific thought is given usually by means of empirical or rational discourse. However, it is not unusual to realize the emphasis of scientific thought as rationally justifiable. Certainly, the dynamics of scientific thought throughout history has not been indifferent to other possibilities of epistemological construction. We cannot escape the facts: Science needs linguistic devices to strengthen its principles and criteria for validation. The aim of this paper is to answer, based on a new conception of metaphor, under what conditions metaphor can be a "physical metaphor" and the extent to which the symbolism in general brings a special light gain of sense to the understanding of physical reality that surrounds us. 展开更多
关键词 BACHELARD BENJAMIN physics raetaphor image
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Thermal Anomalies and Earthquakes:Evidence from Wenchuan,China 被引量:1
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作者 Yang Guo'an Mi Yuqin 《Earthquake Research in China》 2009年第1期48-55,共8页
Earthquake prediction is a difficult problem in Earth sciences.Unsuccessful predictions one after another urged people to explore more synthetic and comprehensive methods for earthquake prediction.The Lithosphere-Atmo... Earthquake prediction is a difficult problem in Earth sciences.Unsuccessful predictions one after another urged people to explore more synthetic and comprehensive methods for earthquake prediction.The Lithosphere-Atmosphere-Ionosphere(LAI)coupling theory pays great attention to the processes taking place within the near ground layer of atmosphere.It has achieved great results recently,and can enlighten us about the nature of an earthquake's precursor.Based on the NCEP reanalysis dataset,this paper attempts to track the anomalies of the surface's upward long wave radiation flux(ULWRF),the temperature at the depth of 10cm~20cm below ground surface layer(BGL)and the air temperature at 2 meters above ground surface(AIR)around the time of the strong Wenchuan earthquake.Thermal anomalies were observed before and after May 12,2008,the time of the Wenchuan earthquake.Perhaps the thermal anomaly that occurred prior to the earthquake can be taken as indicators of the earthquake,but in view of the complexity of the earthquake phenomena,using thermal anomaly as a precursor should be done with caution. 展开更多
关键词 Thermal anomaly Earthquake NCEP reanalysis data the Lithosphere- Atmosphere-Ionosphere (LAI) coupling WENCHUAN
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The International Research Group in Geophysics Europe Africa: A Laboratory without Borders in the Earth Science and Environment
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作者 Christine Amory-Mazaudier 《Journal of Life Sciences》 2012年第3期335-341,共7页
It was in 1995 that, at the end of the international project IEEY (International Equatorial Electrojet Year), African and European scientists decided to create the IRGGEA (International Group in Geophysics Europe A... It was in 1995 that, at the end of the international project IEEY (International Equatorial Electrojet Year), African and European scientists decided to create the IRGGEA (International Group in Geophysics Europe Africa) in order to pursue the scientific work started during the IEEY project, The main objective of IRGGEA was to introduce new fields of research in Africa and built teams of African scientists recognized at an international level in these new fields. To reach this goal, we developed days after days methods to manage smoothly a large network of scientists from developed and developing countries. After a short introduction on the field of research developed in the IRGGEA, we present the organization of the work based on sharing practices and the results obtained in terms of scientific publications and socio-cultural aspects as the increase of the number of women and positions for students in their countries. Such an experience is easy to reproduce. 展开更多
关键词 Scientific network ethical rules GEOPHYSICS sustainable research Africa.
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Impact analysis and control of weak intercalation on fly rock
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作者 Chen Bin He Tiezhu +1 位作者 Zhao Mingsheng Kang Qiang 《Engineering Sciences》 EI 2014年第6期58-62,共5页
The cause and mechanism of fly rock in geological condition of weak intercalation are analyzed.According to the features of fly rock caused by weak intercalation,the differences of fly rock caused in weak intercalatio... The cause and mechanism of fly rock in geological condition of weak intercalation are analyzed.According to the features of fly rock caused by weak intercalation,the differences of fly rock caused in weak intercalation and general condition are distinguished.Specific to complicated circumstance of weak intercalation and town,the control measures of fly rock are given.With project examples,the control measures are scientific and rational,and have important project value. 展开更多
关键词 fly rock weak intercalation stemming failure
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Urban Sprawl and Related Problems: Bibliometric Analysis and Refined Analysis from 1991 to 2011 被引量:1
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作者 ZENG Chen LIU Yaolin +1 位作者 LIU Yanfang QIU Liquan 《Chinese Geographical Science》 SCIE CSCD 2014年第2期245-257,共13页
To shed light on the general patterns and trends in urban sprawl research,and to provide reference for future study,bibliometric analysis and refined analysis are conducted for publications in this area from 1991 to 2... To shed light on the general patterns and trends in urban sprawl research,and to provide reference for future study,bibliometric analysis and refined analysis are conducted for publications in this area from 1991 to 2011.The general publication output,the global geographical distribution of the authors,the funding and institutions involved,the research areas,and the source titles are analyzed and discussed.Scholars in the United States and China have produced most of the documents in urban sprawl and these two countries are also the largest contributors in terms of funding and institutions.′Environmental Sciences&Ecology′,′Urban Studies′,and′Geography′are the most common research areas,and the journal titled Urban Studies has contributed the most articles.Furthermore,the refined analyses on the 500 top-cited and most relevant publications have revealed that research on urban sprawl is closely associated with the categories of′Urban form and development′,′Land use/land development′and′environment/ecology/biology′.Conclusions are made with respect to the basic paradigm of research on urban sprawl.The multi-disciplinary research into urban sprawl are expected to be more diversified and integrated. 展开更多
关键词 urban sprawl BIBLIOMETRICS scientific output multi-discipline
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Monitoring open water area changes in a small tarn using historical orthophotomaps and a historical bathymetric map:a case study of the Litworowy Staw lake,the High Tatras
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作者 Juraj KAPUSTA Frantisek PETROVIC Juraj HRESKO 《Journal of Mountain Science》 SCIE CSCD 2018年第10期2089-2102,共14页
According to scientific evidence in general, the disappearance of the Tatras tarns as a result of external geomorphological processes has been accepted since the long term analyses of lake sediments and peat bogs, geo... According to scientific evidence in general, the disappearance of the Tatras tarns as a result of external geomorphological processes has been accepted since the long term analyses of lake sediments and peat bogs, geomorphological mapping, geophysical measurements(– all indirect methods). It is paradoxical that the direct cartographic evidence of such changes has not existed until now. In this paper, we evaluate shore line changes of the small mountain glacial lake in the High Tatras-Litworowy Staw lake using a multitemporal analysis of a series of historical orthophotomaps and a historical map. Over the last 100 years, the tarn has lost 46.4% of open water level area. Significant visual changes were caused by vegetation growth of Carex species(sedges) on the water's surface. The accumulation of fine sediments and dead plant residues in the tarn basin create suitable conditions for this process, all together causing the tarn to become more shallow. 展开更多
关键词 Vegetation growth of tarns Monitoring of changes Alpine lakes The High Tatras The Litworowy Staw lake
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What Is Going on in the Minds of Translators? A Review of Studies on Translation Process
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作者 WANG Bo MA Yuan-yi 《Sino-US English Teaching》 2015年第4期289-293,共5页
Border areas have provided significant new research questions as well as fruitful insights and hypotheses. The cognitive and neuropsychologic study of translation process is a good example of this kind. This paper has... Border areas have provided significant new research questions as well as fruitful insights and hypotheses. The cognitive and neuropsychologic study of translation process is a good example of this kind. This paper has surveyed various researches on translation process. Studies related to "the black box of translation" are divided into two categories, i.e., studies adopting think-aloud protocols, and studies from the physiology and neuroscientific perspectives. It has been noted that those studies on translation process have made some progress in the past years Firstly, the participants have undergone a change from language learners to professional translators or interpreters Secondly, the purposes of the studies have a tendency of gradually becoming specific. Thirdly, more rigorous methodologies have been developed, with more and more new technological approaches being applied 展开更多
关键词 translation process COGNITIVE think-aloud protocols PHYSIOLOGY neuroscientific
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The Istituto Nazionale di Geofisica e Vulcanologia Data Management System for the Arctic Sciences
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作者 Umberto Apponi Vincenzo Romano +7 位作者 Giorgiana De Franceschi Paola Del Carlo Ilaria Isola Patrizia Macri Giovanni Muscari Leonardo Sagnotti Luca Spogli Stefano Urbini 《Journal of Environmental Science and Engineering(B)》 2016年第11期549-556,共8页
The brokering approach can be successfully used to overcome the crucial question of searching among enormous amount of data (raw and/or processed) produced and stored in different information systems. In this paper,... The brokering approach can be successfully used to overcome the crucial question of searching among enormous amount of data (raw and/or processed) produced and stored in different information systems. In this paper, authors describe the Data Management System the DMS (Data Management System) developed by INGV (Istituto Nazionale di Geofisica e Vulcanologia) to support the brokering system GEOSS (Global Earth Observation System of Systems) adopted for the ARCA (Arctic Present Climate Change and Past Extreme Events) project. This DMS includes heterogeneous data that contributes to the ARCA objective (www.arcaproject.it) focusing on multi-parametric and multi-disciplinary studies on the mechanism (s) behind the release of large volumes of cold and fresh water from melting of ice caps. The DMS is accessible directly at the www.arca.rm.ingv.it, or through the IADC (Italian Arctic Data Center) at http://arcticnode.dta.cnr.it/iadc/gi-portal/index.jsp that interoperates with the GEOSS brokering system (http://www.geoportal.org0 making easy and fast the search of specific data set and its URL. 展开更多
关键词 BROKERING ARCA (Arctic Present Climate Change and Past Extreme Events) IADC (Italian Arctic Data Center) GEOSS(Global Earth Observation System of Systems) DMS (Data Management System) data metadata INSPIRE (Infrastructure for SpatialInformation in Europe) ISO (International Organization for Standardization) 19115 and 19119.
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Structural Geology and Tectonics in Marine Science:Perspectives in the Research of Deep Sea and Deep Interior
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作者 LI Sanzhong JIN Chong +7 位作者 SUO Yanhui M.Santosh DAI Liming LIU Xin MA Yun WANG Xiaofei ZHANG Bingkun YU Shan 《Journal of Ocean University of China》 SCIE CAS 2012年第3期257-266,共10页
The fields of structural geology and tectonics have witnessed great progress over the last decade and are poised for further expansion in the future. One of the significant breakthroughs is the establishment of the &#... The fields of structural geology and tectonics have witnessed great progress over the last decade and are poised for further expansion in the future. One of the significant breakthroughs is the establishment of the 'Beyond Plate Tectonics Theory' where a combination of conceptual models and numerical modeling on plume tectonics and plate tectonics has enabled new insights into the structural and tectonic architecture and processes in the deep interior and deep sea. This paper synthesizes developments of structural geology and tectonics from a macroscopic perspective in deep interior and deep sea. Four key techniques are also reviewed: satellite altimetry for surface structures in deep-sea multi-beam sea-floor mapping; tomography for tectonics of the deep interior; diverse modeling approaches and software for unfolding dynamic evolution; and techniques for HT/HP experiments on material rheology and in situ component measurements. 展开更多
关键词 structural geology tectonics deep interior deep sea marine science
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The state-of-the-art of the China Seismo-Electromagnetic Satellite mission 被引量:45
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作者 SHEN XuHui ZHANG XueMin +6 位作者 YUAN ShiGeng WANG LanWei CAO JinBin HUANG JianPing ZHU Xing Hong PIERGIORGIO Picozzo DAI JianPing 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2018年第5期634-642,共9页
The China Seismo-Electromagnetic Satellite(CSES) mission was proposed in 2003 and approved in 2013 after ten years' scientific and engineering demonstrations. To meet the requirement of scientific objectives, the ... The China Seismo-Electromagnetic Satellite(CSES) mission was proposed in 2003 and approved in 2013 after ten years' scientific and engineering demonstrations. To meet the requirement of scientific objectives, the satellite is designed to be in a sunsynchronous orbit with an altitude of 507 km and descending node time of 14:00 LT. The CSES satellite carries 8 instruments,including search-coil magnetometer(SCM), electric field detector(EFD), high precision magnetometer(HPM), GNSS occultation receiver(GOR), plasma analyzer package(PAP), langmuir probe(LAP), high energetic particle package(HEPP) and detector(HEPD), and tri-band beacon(TBB), among which HEPD is provided by Italian Space Agency. The CSES satellite was launched successfully on February 2, 2018, and is planned to operate for 5 years. The CSES mission is the first satellite in China to measure geophysical fields, which will have a lot of application prospects in the study of seismology, geophysics, space sciences, and so on. 展开更多
关键词 China Seismo-Electromagnetic Satellite seismo-ionospheric disturbance lithosphere-atmosphere-ionosphere coupling geomagnetic fields ionosphere
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Tectonomicrobiology:A new paradigm for geobiological research 被引量:1
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作者 Chuanlun ZHANG Jian LIN +3 位作者 Sanzhong LI Hailiang DONG Fengping WANG Shucheng XIE 《Science China Earth Sciences》 SCIE EI CAS CSCD 2018年第4期494-498,共5页
Geomicrobiology is a sub-discipline of geobiology and emphasizes the interaction between microorganisms and their environment on Earth. There is a need to explicitly emphasize the biogeochemical processes performed by... Geomicrobiology is a sub-discipline of geobiology and emphasizes the interaction between microorganisms and their environment on Earth. There is a need to explicitly emphasize the biogeochemical processes performed by microorganisms associated with Earth's tectonic activities, especially under the framework of the modern theory of plate tectonics. Tectonomicrobiology aims to create a better synergy between microbial and active tectonic processes. This explicit synergy should also foster better communications between solid Earth scientists and life scientists in terms of holistic Earth system dynamics at both tectonic and micro-scales. 展开更多
关键词 Geobiology Geomicrobiology Tectonomicrobiology Tectonic activities Microbial evolution
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Impact analysis of the Journal of Geographical Sciences during 2009–2015
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作者 于信芳 赵歆 《Journal of Geographical Sciences》 SCIE CSCD 2016年第12期1785-1791,共7页
Based on Journal Citation Reports^(TM), Web of Science, Springer data and manuscript statistical data, we analyzed the citation indices of the Journal of Geographical Sciences(JGS) from 2009 to 2015. The main indices ... Based on Journal Citation Reports^(TM), Web of Science, Springer data and manuscript statistical data, we analyzed the citation indices of the Journal of Geographical Sciences(JGS) from 2009 to 2015. The main indices include the number and proportion of international manuscripts, published articles, downloads, impact factors, total cites, cited journals, citing journals, and highly cited papers. Up to 2015, the JGS had received manuscripts from authors in 80 countries and published papers from authors in 32 countries. The citation indices of JGS show increasing trends in the last seven years. The impact factor of the JGS increased from 0.518 in 2009 to 1.923 in 2015. Total cites increased from 157 in 2009 to 1276 in 2015. The international full-text downloads of the JGS increased year by year, and the number of downloads in 2015 was about three times that of 2009. The published papers were considered to be influential. The results of this study provide scientific guidance for the development of the Journal of Geographical Sciences and can be used to improve the quality of other Chinese geographical journals. 展开更多
关键词 Journal of Geographical Sciences impact factor total cites cited journal citing journal
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New spatial dimensions of global cityscapes: From reviewing existing concepts to a conceptual spatial approach 被引量:4
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作者 GEORG Isabel BLASCHKE Thomas TAUBENB?CK Hannes 《Journal of Geographical Sciences》 SCIE CSCD 2016年第3期355-380,共26页
Current global urbanisation processes are leading to new forms of massive urban constellations. The conceptualisations and classifications of these, however, are often ambiguous, overlap or lag behind in scientific li... Current global urbanisation processes are leading to new forms of massive urban constellations. The conceptualisations and classifications of these, however, are often ambiguous, overlap or lag behind in scientific literature. This article examines whether there is a common denominator to define and delimitate–and ultimately map–these new dimensions of cityscapes. In an extensive literature review we analysed and juxtaposed some of the most common concepts such as megacity, megaregion or megalopolis. We observed that many concepts are abstract or unspecific, and for those concepts for which physical parameters exist, the parameters are neither properly defined nor used in standardised ways. While understandably concepts originate from various disciplines, the authors identify a need for more precise definition and use of parameters. We conclude that often, spatial patterns of large urban areas resemble each other considerably but the definitions vary so widely that these differences may surpass any inconsistencies in the spatial delimitation process. In other words, today we have tools such as earth observation data and Geographic Information Systems to parameterise if clear definitions are provided. This appears not to be the case. The limiting factor when delineating large urban areas seems to be a commonly agreed ontology. 展开更多
关键词 urban concepts large urban areas CONCEPTUALIZATION urbanization MEGACITY METROPOLIS ribbon development urban sprawl conurbation city region agglomeration megaregion urban corridor
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