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基于城市断裂点模型的黔中经济区范围界定 被引量:7
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作者 雷箐青 白明 《商业时代》 北大核心 2011年第29期141-142,共2页
经济区和经济区划分既是经济地理学研究的传统课题之一,也是一个具有实践性的规划问题,是生产力合理布局与区域经济合作的重要依据。鉴于贵阳市在全省和黔中经济区的地位,本文运用城市断裂点模型方法,结合贵州各地实际情况,对黔中经济... 经济区和经济区划分既是经济地理学研究的传统课题之一,也是一个具有实践性的规划问题,是生产力合理布局与区域经济合作的重要依据。鉴于贵阳市在全省和黔中经济区的地位,本文运用城市断裂点模型方法,结合贵州各地实际情况,对黔中经济区的合适范围进行研究,并得出相关结论。 展开更多
关键词 城市断裂点模型 经济区划分 经济区范围
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工业钨丝在中温范围(0.25~0.36T/Tm)的变形性能
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作者 田上耕司 吕向红 《国外稀有金属》 1990年第3期28-33,共6页
关键词 工业钨丝 变形性能 范围
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“双减”背景下新课标范围中构建初中音体美创新教学的理念、任务及实践保障
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作者 侯新梅 《中文科技期刊数据库(全文版)教育科学》 2023年第4期119-122,共4页
为促进素质教育实施,中共中央办公厅、国务院办公厅发布对中小学生实施“双减”政策。随着新课改的不断推进,在提升学生综合素质方面提出了更高的要求,这就意味着在中学教学活动中,除了常规的分科教学以外,还可以采用创新教学的方式,将... 为促进素质教育实施,中共中央办公厅、国务院办公厅发布对中小学生实施“双减”政策。随着新课改的不断推进,在提升学生综合素质方面提出了更高的要求,这就意味着在中学教学活动中,除了常规的分科教学以外,还可以采用创新教学的方式,将多学科结合进行有效的结合,通过多种学科的融合教学开拓学生的视野。将创新教学融入音体美教学中,将三者相融合,启发学生在充分的感受艺术和健康的魅力。这也需要教师在教学方法、教学模式以及教学思维方面进行较好的创新,更好的满足教育改革要求。本文以培养学生素养能力为核心目标,分析当前双减背景下新课标范围内初中音体美创新教学存在的问题,为学生能在提质减负的同时加强德育和美育教育,增强初中音体美学科知识的联系,培养初中生的创新能力、实践能力和综合解决问题的能力,提升学生的综合素质,符合我国素质教育的基本要求。 展开更多
关键词 “双减”背景下 新课标范围 音体美创新教学的理念 任务及实践保障
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由同一道习题变化来的几个例子
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作者 刘瑞美 《中学数学教学》 1997年第S1期134-134,共1页
题目的变化是多种多样的,在整个初中阶段,由于学生的思维能力正在逐步发展,因此用题目的变化来培养学生的能力是切实可行的。为此想就一道习题的变化在初中范围的应用举几个例子。
关键词 外角平分线 角的平分线 发散思维能力 举几个例子 题目的 培养学生 阶段 内角平分线 中范围 外接
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元代北方饥荒的时空分布特点及救荒措施 被引量:8
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作者 陈明 《古今农业》 2001年第4期23-33,共11页
饥荒,也叫做饥谨或灾荒。《尔雅·释天》云:“谷不熟为饥,蔬不熟为馑。”也就是指谷菜不收,黎民挨饿的情况。饥荒本身并非一种自然灾害,它常是天灾人祸并行的结果。一旦饥荒发生,常常是大量人民冻饿而死,或被迫逃荒,流徙各地。由此... 饥荒,也叫做饥谨或灾荒。《尔雅·释天》云:“谷不熟为饥,蔬不熟为馑。”也就是指谷菜不收,黎民挨饿的情况。饥荒本身并非一种自然灾害,它常是天灾人祸并行的结果。一旦饥荒发生,常常是大量人民冻饿而死,或被迫逃荒,流徙各地。由此,饥荒也常是社会动乱的肇端,所以不可不加以重视。 展开更多
关键词 《元史》 饥荒 元代北方 时空分布特点 书省 河南行省 《元典章》 常平仓 中范围 饥民
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关于农业银行利用外资、开办外汇业务的几个问题
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作者 钟勇 《广西农村金融研究》 1989年第6期28-30,共3页
随着我国在国际上的威望日趋提高,1980年恢复了我国在国际金融组织中的合法地位,为中国金融业走向世界广交朋友提供了客观条件。几年来,中国农业银行在外交上取得了重大进展,先后加入了亚太地区农业发展基金协会,联合国粮农组织银行家... 随着我国在国际上的威望日趋提高,1980年恢复了我国在国际金融组织中的合法地位,为中国金融业走向世界广交朋友提供了客观条件。几年来,中国农业银行在外交上取得了重大进展,先后加入了亚太地区农业发展基金协会,联合国粮农组织银行家协会、国际信贷联合会,并同廿多家外国银行签订了业务协议书,表明了中国农业银行在国际上的声誉是高的。但是,经济建设需要我们进一步改善内部环境、引进外资,借助他国的经济、技术力量促进发展我国经济。广西,地处祖国的南部边疆,属经济不发达地区,“八山一水一分田” 展开更多
关键词 经营外汇业务 国农业银行 利用外资 代理行 几个问题 广西 项目贷款 农行 中范围 外管局
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VARIATION OF THE EAST ASIAN SUBTROPICAL WESTERLY JET AND ASSOCIATED QUANTIFIED OBJECTIVE INDEXES 被引量:2
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作者 金荣花 李维京 +2 位作者 闫彩霞 李艳 张博 《Journal of Tropical Meteorology》 SCIE 2011年第4期345-351,共7页
In order to understand the role of East Asian subtropical westerly jet (EASWJ) in forecasting summer precipitation in East China,interseasonal pentad characteristics of the EASWJ and their relation to summer precipita... In order to understand the role of East Asian subtropical westerly jet (EASWJ) in forecasting summer precipitation in East China,interseasonal pentad characteristics of the EASWJ and their relation to summer precipitation in East China are analyzed with the daily reanalysis data provided by National Centers for Environmental Prediction (NCEP,USA) and daily precipitation data from 714 Chinese meteorological stations during the period 1960-2009.In addition,the daily evolution of the EASWJ and objective quantification of the EASWJ are investigated for the Meiyu season over the middle and lower reaches of the Yangtze River valley.It is found that the EASWJ and summer precipitation bands in East China move simultaneously.Especially,the stationary state and northward shift of the EASWJ are closely associated with the beginning,ending and stabilization of the annually first raining season in South China and Meiyu over these reaches.Analysis on the characteristics of the EASWJ in typical (atypical) Meiyu years over these reaches shows that the EASWJ swings steadily around its climatological position in meridional orientation (with large amplitude).Numerical experiments on an example in 2005 shows that indexes proposed in this study can depict the EASWJ well and should be valuable for application in the operation. 展开更多
关键词 medium-range characteristics statistical analysis East Asian subtropical westerly jet
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Land Use and Soil Organic Carbon in China’s Village Landscapes 被引量:3
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作者 JIAO Jia-Guo YANG Lin-Zhang +3 位作者 WU Jun-Xi WANG Hong-Qing LI Hui-Xin E. C. ELLIS 《Pedosphere》 SCIE CAS CSCD 2010年第1期1-14,共14页
Village landscapes, which integrate small-scMe agriculture with housing, forestry, and a host of other land use practices, cover more than 2 million square kilometers across China. Village lands tend to be managed at ... Village landscapes, which integrate small-scMe agriculture with housing, forestry, and a host of other land use practices, cover more than 2 million square kilometers across China. Village lands tend to be managed at very fine spatial scales (≤ 30 m), with managers both adapting their practices to existing variation in soils and terrain (e.g., fertile plains vs. infertile slopes) and also altering soil fertility and even terrain by terracing, irrigation, fertilizing, and other land use practices. Relationships between fine-scale land management patterns and soil organic carbon (SOC) in the top 30 cm of village soils were studied by sampling soils within fine-scale landscape features using a regionally weighted landscape sampling design across five environmentally distinct sites in China. SOC stocks across China's village regions (5 Pg C in the top 30 cm of 2 ×10^6 km^2) represent roughly 4% of the total SOC stocks in global croplands. Although macroclimate varied from temperate to tropical in this study, SOC density did not vary significantly with climate, though it was negatively correlated with regional mean elevation. The highest SOC densities within landscapes were found in agricultural lands, especially paddy, the lowest SOC densities were found in nonproductive lands, and forest lands tended toward moderate SOC densities. Bue to the high SOC densities of agricultural lands and their predominance in village landscapes, most village SOC was found in agricultural land, except in the tropical hilly region, where forestry accounted for about 45% of the SOC stocks. A surprisingly large portion of village SOC was associated with built structures and with the disturbed lands surrounding these structures, ranging from 〉 18% in the North China Plain to about 9% in the tropical hilly region. These results confirmed that local land use practices, combined with local and regional variation in terrain, were associated with most of the SOC variation within and across China's village landscapes and may be an important cause of regional variation in SOC. 展开更多
关键词 AGRICULTURE land cover change land use change soil carbon sequestration spatial heterogeneity
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Compact Scanning Tunneling Microscope with Large Scale Searching Capability for Mmultidisciplinary Applications
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作者 孟文杰 王琦 +2 位作者 张晶 侯玉斌 陆轻铀 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2016年第5期523-526,I0001,共5页
We present the design and performance of a home-built scanning tunneling microscope (STM), which is compact (66 mm tall and 25 mm in diameter), yet equipped with a 3D atomic precision piezoelectric motor in which ... We present the design and performance of a home-built scanning tunneling microscope (STM), which is compact (66 mm tall and 25 mm in diameter), yet equipped with a 3D atomic precision piezoelectric motor in which the Z coarse approach relies on a high simplic-ity friction-type walker (of our own invention) driven by an axially cut piezoelectric tube. The walker is vertically inserted in a piezoelectric scanner tube (PST) with its brim laying at on the PST end as the inertial slider (driven by the PST) for the XZ (sample plane) motion. The STM is designed to be capable of searching rare microscopic targets (defects, dopants, boundaries, nano-devices, etc.) in a macroscopic sample area (square millimeters) under extreme conditions (low temperatures, strong magnetic elds, etc.) in which it ts. It gives good atomic resolution images after scanning a highly oriented pyrolytic graphite sample in air at room temperature. 展开更多
关键词 Scanning tunneling microscope Large scale searching Air STM Electrochemical STM
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Opera Translation and Globalization of Chinese Local Culture: A Case Study of Wuxi Opera 被引量:2
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作者 ZANG Hui-qian SUN Zhi-xiang XIANG Yu-xin 《Journal of Literature and Art Studies》 2017年第8期1031-1038,共8页
Against the background of a rigorous campaign of globalization of Chinese culture, the global dissemination of local operas has drawn attention from the government, art performers, translators and scholars. This paper... Against the background of a rigorous campaign of globalization of Chinese culture, the global dissemination of local operas has drawn attention from the government, art performers, translators and scholars. This paper takes Wuxi Opera, a precious cultural treasure in Jiangsu province, China, for example. We will discuss the difficulties in spreading Wuxi Opera globally and learn the successful globalizing experience from other operas, such as Peking Opera, Kunqu Opera and Sichuan Opera. Considering the important status and rich resources of Peking Opera, we will analyze Peking Opera thoroughly and the most important aspects of Sichuan Opera and Kunqu Opera. By analyzing their translations and globalization process, we believe that Wuxi Opera should make efforts especially in four aspects to make progress in its globalizing campaign. 展开更多
关键词 Wuxi Opera GLOBALIZATION Chinese culture opera translation
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Global Major Progress and Trends in the Implementation of Agenda 21 被引量:1
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作者 Guo Risheng 《Chinese Journal of Population,Resources and Environment》 2012年第2期3-11,共9页
This paper summarizes, from a global perspective, the major progress in the implementation of the Agenda 21 since the UN Conference on Environment and Development. The results show that global economy has achieved a s... This paper summarizes, from a global perspective, the major progress in the implementation of the Agenda 21 since the UN Conference on Environment and Development. The results show that global economy has achieved a substantial growth, and positive progress has been made in poverty eradication, urbanization, and conservation and intensive use of natural resources. However, relevant international conventions and commitments have not yet been completely fulfilled. The paper further analyzes the current major challenges and future trends of global sustainable development. It is argued that there are three major challenges:1) fatal global environmental issues posing an increasing threat to human survival; 2) more and more severe global competition for developing spaces; and 3) issues highlighting global people's livelihood. There are four trends of global sustainable development:1) sustainable development will further turn from concept into global action; 2) green will be the main trend of global development; 3) emerging developing countries will become the main driving force of global sustainable development; and 4) international relations in the field of sustainable development will turn to competitive co-operation. 展开更多
关键词 Agenda 21 implementation progress CHALLENGE TREND
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A Comparative Study of Methods for Delineating Sphere of Urban Influence: A Case Study on Central China 被引量:6
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作者 WANG Hao DENG Yu +1 位作者 TIAN Enze WANG Kaiyong 《Chinese Geographical Science》 SCIE CSCD 2014年第6期751-762,共12页
A number of urban and regional plans have been developed with the advancement of urbanization and regional integration, among which the delineation of sphere of urban influence and improvement of integration between t... A number of urban and regional plans have been developed with the advancement of urbanization and regional integration, among which the delineation of sphere of urban influence and improvement of integration between the city and its hinterland have be- come vital important for guiding practices. In terms of delineating sphere of urban influence, existing studies have been focused on static study by using single year data or single method, resulting in a lack of time-series longitudinal analysis or comprehensive analysis based on multiple methods This study emphasizes on comparing two methods from both the theoretical and empirical perspective. Both gravity model and improwd field model are applied to the selected study area for measurements and comparison, to explore their strengths and weaknesses. A research framework for comprehensive analysis on delineating sphere of urban influence is proposed. In the end, the differences of deli:aeating methods are illustrated and the feasibility of comprehensive analysis is discussed. Recommendations are provided for selecting appropriate methods for delineating sphere of urban influence or developing regional hierarchy system plans and urban spatial structure schemes. 展开更多
关键词 gravity model improved field model sphere of urban influence regional planning central China
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China Galileo Test Range and Its Critical Technologies
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作者 刘学林 蔚保国 《Transactions of Tianjin University》 EI CAS 2009年第6期463-470,共8页
With the rapid development of global navigation satellite system (GNSS) and its applications, GNSS test range is becoming the focus of research. This paper, with the cooperation on Galileo Program between Europe and C... With the rapid development of global navigation satellite system (GNSS) and its applications, GNSS test range is becoming the focus of research. This paper, with the cooperation on Galileo Program between Europe and China as background, gives an overview of the development of test ranges for satellite navigation, proposes an implementation plan for China Galileo Test Range (CGTR), presents an analysis of CGTR and describes its overall objective, architecture, function and services, as well as operating modes. Particular analysis and study are given to the critical technologies related to CGTR implementation, including test range simulation and evaluation, time syn-chronizing and keeping, and pseudolite time division multiple access (TDMA) signal design. Research results of this paper can be helpful to GNSS testing and related applications. 展开更多
关键词 CGTR GALILEO satellite navigation test range
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Chinese word segmentation with local and global context representation learning 被引量:2
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作者 李岩 Zhang Yinghua +2 位作者 Huang Xiaoping Yin Xucheng Hao Hongwei 《High Technology Letters》 EI CAS 2015年第1期71-77,共7页
A local and global context representation learning model for Chinese characters is designed and a Chinese word segmentation method based on character representations is proposed in this paper. First, the proposed Chin... A local and global context representation learning model for Chinese characters is designed and a Chinese word segmentation method based on character representations is proposed in this paper. First, the proposed Chinese character learning model uses the semanties of loeal context and global context to learn the representation of Chinese characters. Then, Chinese word segmentation model is built by a neural network, while the segmentation model is trained with the eharaeter representations as its input features. Finally, experimental results show that Chinese charaeter representations can effectively learn the semantic information. Characters with similar semantics cluster together in the visualize space. Moreover, the proposed Chinese word segmentation model also achieves a pretty good improvement on precision, recall and f-measure. 展开更多
关键词 local and global context representation learning Chinese character representa- tion Chinese word segmentation
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Further Considerations of 100Gbit/s Wavelength Division Multiplexing System Commercial Application
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作者 沈世奎 王光全 +1 位作者 王海军 满祥锟 《China Communications》 SCIE CSCD 2013年第4期1-6,共6页
Along with the emergence and ma- turity of 100Gbit/s technologies, numbers of trial and commercial 100Gbit/s Wavelength Division Multiplexing (WDM) systems have been established worldwide. The research- oriented lab... Along with the emergence and ma- turity of 100Gbit/s technologies, numbers of trial and commercial 100Gbit/s Wavelength Division Multiplexing (WDM) systems have been established worldwide. The research- oriented lab tests of 100Gbit/s WDM systems were done by China Unicorn in 2012. The 100Gbit/s technologies of polarization multi- plex-quadrature phase shift keying with co- herent detection from multiple vendors have been studied. There are some further issues to be specified before the commercial application of 100Gbit/s WDM system is implemented in large scale in backbone network, including optical pertbnnance parameters, optical per- lbrmance monitoring of 100Gbit/s system, protection mechanism, selection of client in- terfhce and comprehensive Operation, Ad- ministration and Maintenance (OAM). 展开更多
关键词 100Gbit/s WDM system opticalperformance monitoring client interface pro-tection mechanism comprehensive OAM
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Hepatocellular carcinoma and industrial epidemics
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作者 Alain Braillon Gérard Dubois 《World Journal of Gastroenterology》 SCIE CAS CSCD 2011年第24期2976-2976,共1页
Worldwide,the burden of the non viral causes of hepatocellular carcinoma(HCC) is usually underestimated.Clearly industrial goods,tobacco,alcohol and processed foods are the agents of new epidemics in modern times whic... Worldwide,the burden of the non viral causes of hepatocellular carcinoma(HCC) is usually underestimated.Clearly industrial goods,tobacco,alcohol and processed foods are the agents of new epidemics in modern times which far outscore the burden of infectious agents on morbidity and mortality.Smoking,a dose-related contributing factor for HCC,receives too little attention in clinical practice.In France,tobacco,hepatitis B and C virus and alcohol are the main risk factors for HCC mortality(33%,31% and 26%,respectively).In developing countries,where tobacco consumption is dramatically increasing,this epidemic may soon surpass hepatitis B.Obesity and diabetes are the contributing factors too.The role of industrial processed foods in the increase of the prevalence of obesity and diabetes cannot be ignored. 展开更多
关键词 Hepatocellular carcinoma TOBACCO ALCOHOL Processed foods Industrial epidemics
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Reading "A Dream in Red Mansions"and Seeing the Holographic Image of Chinese Classical Furniture Art
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作者 Wu Xuejuan Yuan Yuan 《International Journal of Technology Management》 2014年第6期1-3,共3页
The furniture world of "A Dream in Red Mansions" is a microcosm of Qing Dynasty aristocraticc furniture. Its material, shape and decoration are very elegant,which is not only to meet the needs of life,but also meet ... The furniture world of "A Dream in Red Mansions" is a microcosm of Qing Dynasty aristocraticc furniture. Its material, shape and decoration are very elegant,which is not only to meet the needs of life,but also meet the pursuit of aesthetic contentment. On different occasions, coordinated with different furniture, it can form a hamaonious picture with the enviromnent. At the same time, their display range and combination mode also strictly follow different etiquette systems. In the red mansions, it shows the artistic beauty and is in the feudal shadow, and there is no exception in the furniture world. For "A Dream in Red Mansions" , it is how beautiful and how sad it is! 展开更多
关键词 A Dream in Red Mansions classical furniture aesthetic taste
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Nonverbal Language in Intercultural Communication Application
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作者 Hongmei Yang 《International Journal of Technology Management》 2013年第10期89-91,共3页
Cross-cultural communication mainly refers to communication between people of different cultural backgrounds. Worldwide research on intercultural communication is the rise of a new field of study in recent 30 years. W... Cross-cultural communication mainly refers to communication between people of different cultural backgrounds. Worldwide research on intercultural communication is the rise of a new field of study in recent 30 years. With the deepening of reform and opening up, China' s exchanges with the world are more and more frequent, China approaches to the world, and the world is also approaching the China. China should learn from the advanced experience of foreign countries, to learn all the outstanding achievements of human civilization all over the world, while the splendid Chinese culture will also be introduced to the world. In this way, it relates to the problem of cross-cultural communication. 展开更多
关键词 Nonverbal Language Intercultural Communication. Body language
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Development and research of Human Resource Management under the background of information era
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作者 Zhiping Du Leshi Cai 《International Journal of Technology Management》 2015年第1期126-128,共3页
In the context of economic globalization, the knowledge economy, information networking background, the worldwide human resource management are facing the challenge of change, it shows a series of trends and they are ... In the context of economic globalization, the knowledge economy, information networking background, the worldwide human resource management are facing the challenge of change, it shows a series of trends and they are summarized in this article of the worldwide enterprise human resource management six trends, namely strategy, information technology, professional, people management, and human resources outsourcing and comprehensive human resource management, in order to change the direction of the future, it is still in its infancy inspire and should learn from the human resource management of Chinese enterprises. 展开更多
关键词 BUSINESS TRENDS Human Resource Management
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Earthquake-Affected Time-Space Domain, Recurrence Interval and Effective Preparation Time of Earthquakes
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作者 Wang Shengzu and Zhang ZongchunInstitute of Geology & Laboratory of Tectonophysics, China Seismological Bureau, Beijing 100029, China 《Earthquake Research in China》 2002年第4期380-395,共16页
The study shows that earthquake-affected time-space domain (ETSD), i.e. a time-space range in which strong earthquakes are unable to occur owing to the influence of a prior earthquake occurring, shows a hyperbolic mar... The study shows that earthquake-affected time-space domain (ETSD), i.e. a time-space range in which strong earthquakes are unable to occur owing to the influence of a prior earthquake occurring, shows a hyperbolic margin curve in the t(time)-r(distance) coordinate plane, which has a maximum affected radius r 0 at t=0 and a maximum influence time t 0 (i.e. the in-situ recurrence interval of earthquakes) at r=0. Based on the time-distance distributions of posterior earthquakes relative to prior ones in the regions of North China, Northwest China, Qinghai-Xizang (Tibet) plateau and Southwest China, the optimized and 90%-confidence margin curves are estimated using optimization and statistical analysis methods. This indicates that the concept and method of ETSD with 3-dimension (time-distance-magnitudes) instead of those of “recurrence interval" with 1-dimension (time) or 2-dimension (time-magnitude) provides a new approach to understanding the fluctuation of seismic activities, estimating the effective earthquake-preparation time of potential hypocenters, and therefore improving the medium- and long-term prediction of strong earthquakes. 展开更多
关键词 Earthquake-affected time-space domain Recurrence interval Affected radius Effective earthquake-preparation time
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