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Robot-Oriented 6G Satellite-UAV Networks: Requirements, Paradigm Shifts, and Case Studies 被引量:1
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作者 Peng Wei Wei Feng +2 位作者 Yunfei Chen Ning Ge Wei Xiang 《China Communications》 SCIE CSCD 2024年第2期74-84,共11页
Networked robots can perceive their surroundings, interact with each other or humans,and make decisions to accomplish specified tasks in remote/hazardous/complex environments. Satelliteunmanned aerial vehicle(UAV) net... Networked robots can perceive their surroundings, interact with each other or humans,and make decisions to accomplish specified tasks in remote/hazardous/complex environments. Satelliteunmanned aerial vehicle(UAV) networks can support such robots by providing on-demand communication services. However, under traditional open-loop communication paradigm, the network resources are usually divided into user-wise mostly-independent links,via ignoring the task-level dependency of robot collaboration. Thus, it is imperative to develop a new communication paradigm, taking into account the highlevel content and values behind, to facilitate multirobot operation. Inspired by Wiener’s Cybernetics theory, this article explores a closed-loop communication paradigm for the robot-oriented satellite-UAV network. This paradigm turns to handle group-wise structured links, so as to allocate resources in a taskoriented manner. It could also exploit the mobility of robots to liberate the network from full coverage,enabling new orchestration between network serving and positive mobility control of robots. Moreover,the integration of sensing, communications, computing and control would enlarge the benefit of this new paradigm. We present a case study for joint mobile edge computing(MEC) offloading and mobility control of robots, and finally outline potential challenges and open issues. 展开更多
关键词 closed-loop communication mobility control satellite-UAV network structured resource allocation
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Generalized Pareto Distribution Model and Its Application to Hydrocarbon Resource Structure Prediction of the Huanghua Depression 被引量:1
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作者 Liu Xiaoping Jin Zhijun +1 位作者 Chen Shanyong Liu Lifang 《Petroleum Science》 SCIE CAS CSCD 2006年第2期22-27,共6页
The generalized Pareto distribution model is a kind of hydrocarbon pool size probability statistical method for resource assessment. By introducing the time variable, resource conversion rate and the geological variab... The generalized Pareto distribution model is a kind of hydrocarbon pool size probability statistical method for resource assessment. By introducing the time variable, resource conversion rate and the geological variable, resource density, such model can describe not only different types of basins, but also any exploration samples at different phases of exploration, up to the parent population. It is a dynamic distribution model with profound geological significance and wide applicability. Its basic principle and the process of resource assessment are described in this paper. The petroleum accumulation system is an appropriate assessment unit for such method. The hydrocarbon resource structure of the Huanghua Depression in Bohai Bay Basin was predicted by using this model. The prediction results accord with the knowledge of exploration in the Huanghua Depression, and point out the remaining resources potential and structure of different petroleum accumulation systems, which are of great significance for guiding future exploration in the Huanghua Depression. 展开更多
关键词 Generalized Pareto distribution model hydrocarbon resource assessment hydrocarbon resource structure Huanghua depression
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System analysis of structure of water resources and eco-environment in Yellow river delta,China
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《Global Geology》 1998年第1期60-60,共1页
关键词 System analysis of structure of water resources and eco-environment in Yellow river delta China
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IRP/DSM and Sustainable Development
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作者 胡兆光 《Electricity》 2001年第1期31-33,共3页
This paper introduces the energy consumption status in China, elaborate the affects of the unreasonable energy consumption structure on energy environment and sustainable development of economy. Simultaneously, it poi... This paper introduces the energy consumption status in China, elaborate the affects of the unreasonable energy consumption structure on energy environment and sustainable development of economy. Simultaneously, it points out the solution, i.e., to implement integrated resources planning (IRP)/demand side management (DSM), and gives some recommendations on the way of implementing IRP/DSM. 展开更多
关键词 energy consumption structure energy environment sustainable development integrated resources planning (IRP) demand side management (DSM)
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Enhancing Navigability:An Algorithm for Constructing Tag Trees 被引量:1
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作者 Chong Chen Pengcheng Luo 《Journal of Data and Information Science》 CSCD 2017年第2期56-75,共20页
Purpose: This study introduces an algorithm to construct tag trees that can be used as a userfriendly navigation tool for knowledge sharing and retrieval by solving two issues of previous studies, i.e. semantic drift... Purpose: This study introduces an algorithm to construct tag trees that can be used as a userfriendly navigation tool for knowledge sharing and retrieval by solving two issues of previous studies, i.e. semantic drift and structural skew.Design/methodology/approach: Inspired by the generality based methods, this study builds tag trees from a co-occurrence tag network and uses the h-degree as a node generality metric. The proposed algorithm is characterized by the following four features:(1) the ancestors should be more representative than the descendants,(2) the semantic meaning along the ancestor-descendant paths needs to be coherent,(3) the children of one parent are collectively exhaustive and mutually exclusive in describing their parent, and(4) tags are roughly evenly distributed to their upper-level parents to avoid structural skew. Findings: The proposed algorithm has been compared with a well-established solution Heymann Tag Tree(HTT). The experimental results using a social tag dataset showed that the proposed algorithm with its default condition outperformed HTT in precision based on Open Directory Project(ODP) classification. It has been verified that h-degree can be applied as a better node generality metric compared with degree centrality.Research limitations: A thorough investigation into the evaluation methodology is needed, including user studies and a set of metrics for evaluating semantic coherence and navigation performance.Practical implications: The algorithm will benefit the use of digital resources by generating a flexible domain knowledge structure that is easy to navigate. It could be used to manage multiple resource collections even without social annotations since tags can be keywords created by authors or experts, as well as automatically extracted from text.Originality/value: Few previous studies paid attention to the issue of whether the tagging systems are easy to navigate for users. The contributions of this study are twofold:(1) an algorithm was developed to construct tag trees with consideration given to both semanticcoherence and structural balance and(2) the effectiveness of a node generality metric, h-degree, was investigated in a tag co-occurrence network. 展开更多
关键词 Semantic coherence structural balance Tag tree resources navigation Algorithm
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The Feasibility Analysis of Delayed Retirement in Northwest China --Taking Gansu Province as an Example
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作者 ZHOU Zhou 《International English Education Research》 2017年第3期87-89,共3页
Gansu Province in the northwest of China, so the research on the impact of delay retirement in Gansu province have a certain representation. This paper analyzes the current situation of human resources in Gansu provin... Gansu Province in the northwest of China, so the research on the impact of delay retirement in Gansu province have a certain representation. This paper analyzes the current situation of human resources in Gansu province the proportion of the labor force is relatively low, the age structure of aging, education, human resources quality is still not high, the use of theoretical analysis method of overlapping generations model and AHP method to verify the proposed implementation. The delay retirement policy to increase the effective adjustment of Gansu province to improve the structure of human resources, better solve the problem of human resources structure in Gansu Province, so as to enhance Gansu's core competitive advantage. 展开更多
关键词 Delayed retirement: human resource structure overlapping generations model: AHP method
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The Influence of the Structural Transformation of Chinese Society on Methods of Resource Allocation
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作者 李培林 《Social Sciences in China》 1997年第1期98-105,190,共9页
关键词 The Influence of the structural Transformation of Chinese Society on Methods of resource Allocation
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