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海岸与陆架沉积:动力过程、全球变化影响和地层记录 被引量:22
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作者 高抒 《第四纪研究》 CAS CSCD 北大核心 2010年第5期856-863,共8页
文章试图在海岸与陆架沉积的基本动力过程、全球变化影响和地层记录等方面提出新的科学问题和基础研究建议。在基本动力过程研究上,底部边界层过程的垂向尺度和悬沙浓度影响、陆架环流和水团运动的悬沙输运效应、河口与陆架密度流形成... 文章试图在海岸与陆架沉积的基本动力过程、全球变化影响和地层记录等方面提出新的科学问题和基础研究建议。在基本动力过程研究上,底部边界层过程的垂向尺度和悬沙浓度影响、陆架环流和水团运动的悬沙输运效应、河口与陆架密度流形成机理、大型河流的水下三角洲和斜坡沉积的形成过程、浊流运动特征以及物理海洋过程响应等是值得重视的问题;在全球变化影响方面,需深入研究流域变化和生物礁演化与碳埋藏的关系、沉积环境的系统状况转换及动力过程变异、沉积体系演化的定量模拟方法等问题;在地层记录方面,应加强陆架与海岸沉积体系中全球变化记录的高分辨率信息提取、多种沉积记录信息的整合方法、沉积体系和记录形成的数值模拟、气候变化效应的地层记录模拟、沉积体系的信息分析模型等研究。 展开更多
关键词 浅海动力过程 底部边界层 密度流 碳埋藏 沉积环境系统转换 全新世地层记录形成 沉积信 息分析模型
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Field analysis of metallogenic information and its application 被引量:3
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作者 毛先成 胡超 +3 位作者 周尚国 张宝一 汪凡云 曾文波 《Journal of Central South University》 SCIE EI CAS 2011年第1期196-207,共12页
Focusing on the issue to deal with inadequate extraction of metallogenic information especially geological information,a new method of extracting metallogenic information based on field model,i.e.the field analysis me... Focusing on the issue to deal with inadequate extraction of metallogenic information especially geological information,a new method of extracting metallogenic information based on field model,i.e.the field analysis method of metallogenic information,was proposed.In addition,a case study by using the method of the extraction of metallogenic information from the west Guangxi and southeast Yunnan district as an example was performed.The representation method for the field models of metallogenic information,including the metallogenic influence field model and the metallogenic distance field model,was discussed by introducing the concept of the field theory,based on the characteristic analysis of the distance gradualness and the influence superposition of metallogenic information.According to the field theory superposition principle and the spatial distance analysis method,the mathematical models for the metallogenic influence field and the metallogenic distance field of point,line and area geological bodies were derived out by using parameter equation and calculus.Based on the metallogenic background analysis,the metallogenic information field models of synsedimentary faults and manganese sedimentary basins were built.The relationship between the metallogenic information fields and the manganese mineralization distribution was also investigated by using the method of metallogenic information field analysis.The instance study indicates that the proposed method of metallogenic information field analysis is valid and useful for extracting the ore-controlling information of synsedimentary faults and manganese sedimentary basins in the study area,with which the extraction results are significant both statistically and geologically. 展开更多
关键词 metallogenic information field model metallogenic prognosis manganese ore
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Stability Analysis of Information Spreading on SNS Based on Refined SEIR Model 被引量:2
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作者 WANG Chao HU Yuanping +2 位作者 LIU Chengyuan LIU Zhihong MA Jianfeng 《China Communications》 SCIE CSCD 2014年第11期24-33,共10页
Investigating the stability of information spreading over SNS helps to understand the principles inherent in the spreading behavior.This paper explores the mechanisms of information spreading including stifling mechan... Investigating the stability of information spreading over SNS helps to understand the principles inherent in the spreading behavior.This paper explores the mechanisms of information spreading including stifling mechanism,latent mechanism and forgetting mechanism,establishes a refined SEIR model,and builds the corresponding mean-field equations.The methods of the differential dynamics and the next generation matrix are used to calculate the equilibriums and the basic reproductive number,and the asymptotical stability of the network equilibriums are proved theoretically.Simulation experiments are carried out to analyze the effect of the spreading mechanisms on the information spreading process and the results support our conclusions. 展开更多
关键词 SNS information spreadingmodel asymptotical stability basic reproduction number
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Design of Multi-attribute Knowledge Base Based on Hybrid Knowledge Representation 被引量:1
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作者 唐志杰 杨保安 张科静 《Journal of Donghua University(English Edition)》 EI CAS 2006年第6期62-66,共5页
Based on the knowledge representation and knowledge reasoning, this paper addresses the creation of the multi-attribute knowledge base on the basis of hybrid knowledge representation, with the help of object-oriented ... Based on the knowledge representation and knowledge reasoning, this paper addresses the creation of the multi-attribute knowledge base on the basis of hybrid knowledge representation, with the help of object-oriented programming language and relational database. Compared with general knowledge base, multi-attribute knowledge base can enhance the ability of knowledge processing and application; integrate the heterogeneous knowledge, such as model, symbol, case-based sample knowledge; and support the whole decision process by integrated reasoning. 展开更多
关键词 Hybrid knowledge multi-attribute knowledge base knowledge representation knowledge reasoning object-oriented method.
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Analysis on Key Technology of "Cloud Computing"
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作者 Wang Bei 《International Journal of Technology Management》 2014年第6期88-90,共3页
This paper introduces the background of cloud computing, takes analysis of key technology, analysis of cloud computing and traditional competitive intelligence information model for comparative study, for the security... This paper introduces the background of cloud computing, takes analysis of key technology, analysis of cloud computing and traditional competitive intelligence information model for comparative study, for the security of cloud computing, function and service of the following aspects to elaborate, to explore the influence of cloud computing on the information. 展开更多
关键词 cloud computing cloud security cloud services information technology
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The impact of information technology on human resource management mode and the selection factors
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作者 Yi Shi 《International Journal of Technology Management》 2015年第7期22-24,共3页
With the continuous development of information technology, information technology has penetrated into all walks of society, which has a growing influence on the socio-economic management including the impact of human ... With the continuous development of information technology, information technology has penetrated into all walks of society, which has a growing influence on the socio-economic management including the impact of human resource management. From the nature of information processing and analysis of information technology, this thesis probes into the impact of information technology on human resource management model and builds a closed-loop model of modem human resources management with the support of information technology. This paper also analyzes the effect of the closed-loop model of modem human resources management supported by the information technology, as well as the requests of IT application in the future, which is designed to help people understand the human resource management from the perspective of IT applications. 展开更多
关键词 IT human resources MODE FACTOR
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Study on Microblog Dissemination Law in View ol Forwarding
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作者 CHEN Xia JIA Yuan GUO Longfei 《China Communications》 SCIE CSCD 2014年第2期128-137,共10页
Forwarding is a major means of information dissemination on the Microblog platform.The article,combining static analysis and dynamic analysis,takes Microblog forwarding as the object of study,and studies the network t... Forwarding is a major means of information dissemination on the Microblog platform.The article,combining static analysis and dynamic analysis,takes Microblog forwarding as the object of study,and studies the network topology of grass-roots Microblog forwarding users.It also studies the correlation between characteristic quantity and forwarding times of Microblog network topology.Furthermore,it conducts modification on virus transmission model,builds and verifies the Microblog forwarding dynamical model.The study finds out that Microblog postings present qute strong dissemination capacity on the initial stage,and some Microblog postings with many forwarding times and long duration of forwarding process due to the dynamic growth of the forwarding user network and the joining of strong nodes make network infection density decrease in some phases. 展开更多
关键词 Microblog dissemination law social network dissemination dynamics Microblog forwarding
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Research on the Applications of Probability Model and Matrix Transformation in Data Analysis and Management under the Environment of Information Time
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作者 Ying Cao 《International Journal of Technology Management》 2015年第7期152-154,共3页
In this paper, we research the probability theory and matrix transformation based technique to manage the data for processing and analysis. Clustering analysis research has a long history, over the decades, the import... In this paper, we research the probability theory and matrix transformation based technique to manage the data for processing and analysis. Clustering analysis research has a long history, over the decades, the importance and the cross characteristics with other research direction to get the affirmation of the people. The probability theory and linear algebra act as the powerful tool for analyzing and mining data. The experimental result illustrates the effectiveness. In the near future, we plan to conduct more theoretical analysis on the topic. 展开更多
关键词 Probability Model Matrix Transformation Data Analysis and Management.
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Analysis on the Security Enhancement Model of Communication System based on Chaotic Encryption and Analytic Hierarchy Process
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作者 Qianfei Huang 《International Journal of Technology Management》 2016年第10期28-30,共3页
In this paper, we conduct research on the security enhancement model of communication system based on the chaotic encryption and analytic hierarchy process. The communication of the information network is completed by... In this paper, we conduct research on the security enhancement model of communication system based on the chaotic encryption and analytic hierarchy process. The communication of the information network is completed by the communication protocol. The communication protocol can be divided into application layer, transport layer, network layer, link layer and physical layer. By using the communication protocol, the security control of the network communication can meet the needs of the information network security communication. This paper integrates the chaos system to further implement the robust system architecture. The algorithm of this paper tries to make the maximum value of the above three parameters in each iteration step by step and the output feedback to dynamically change these parameters. Compared with other algorithms, our method can adopt more related theories to perform the better result. 展开更多
关键词 Security Enhancement Communication System Chaotic Encryption Analytic Hierarchy Process
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IS TECHNICAL ANALYSIS INFORMATIVE IN UK STOCK MARKET? EVIDENCE FROM DECOMPOSITION-BASED VECTOR AUTOREGRESSIVE(DVAR) MODEL 被引量:2
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作者 XIE Haibin BIAN Jiangze +1 位作者 WANG Mingxi QIAO Han 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2014年第1期144-156,共13页
The paper proposes a new approach -- The decomposition-based vector autoregressive (DVAR) model to scrutinize the predictability of the UK stock market. Empirical studies performed on the monthly British FTSE100 ind... The paper proposes a new approach -- The decomposition-based vector autoregressive (DVAR) model to scrutinize the predictability of the UK stock market. Empirical studies performed on the monthly British FTSE100 index over 1984-2012 confirm that the DVAR model does provide informative forecasts for both in-sample and out-of-sample forecasts. Trading strategies based on the DVAR forecasts can Significantly beat the simple buy-and-hold, which demonstrates the valuable information provided by technical analysis in the UK stock market. 展开更多
关键词 DVAR stock market predictability technical analysis UK stock market.
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An analysis of the differentiation rules and influencing factors of venture capital in Beijing-Tianjin-Hebei urban agglomeration 被引量:5
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作者 方嘉雯 《Journal of Geographical Sciences》 SCIE CSCD 2018年第4期514-528,共15页
Under China's innovation-driven development strategy, venture capital has become an important driving force in urban agglomeration integration and collaborative innovation. This paper uses social network analysis ... Under China's innovation-driven development strategy, venture capital has become an important driving force in urban agglomeration integration and collaborative innovation. This paper uses social network analysis to analyze spatiotemporal differences of venture capital in the Beijing-Tianjin-Hebei urban agglomeration for the period 2005–2015. A gravity model and panel data regression model are used to reveal the influencing factors on spatiotemporal differences in venture capital in the region. This study finds that there is a certain cyclical fluctuation and uneven differentiation in the venture capital network in the Beijing-Tianjin-Hebei urban agglomeration in terms of total investment, and that the three centers of venture capital(Beijing, Shijiazhuang and Tangshan) have a stimulatory effect on surrounding cities; flows of venture capital between cities display certain networking rules, but they are slow to develop and strongly centripetal; there is a strong positive correlation between levels of information infrastructure development and economic development and venture capital investment; and places with relatively underdeveloped financial environments and service industries are less able to apply the fruits of innovation and entrepreneurship and to attract funds. This study can act as a reference for the Beijing-Tianjin-Hebei urban agglomeration in building a world-class super urban agglomeration with the best innovation capabilities in China. 展开更多
关键词 venture capital Beijing-Tianjin-Hebei urban agglomeration differentiation influencing factors gravity model
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