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体能系统结构要素间相互关系的理论研究 被引量:8
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作者 陈月亮 赵玉华 《武汉体育学院学报》 CSSCI 北大核心 2009年第7期56-60,共5页
采用文献资料法和逻辑分析法,对体能系统的结构层次进行了剖析,对体能系统内部各要素间及外部影响因素间的相互关系进行了理论阐述。认为:体能系统有其固有的内在结构和功能,在具体专项中体能的外在表现与专项特征紧密相关,专项体能是... 采用文献资料法和逻辑分析法,对体能系统的结构层次进行了剖析,对体能系统内部各要素间及外部影响因素间的相互关系进行了理论阐述。认为:体能系统有其固有的内在结构和功能,在具体专项中体能的外在表现与专项特征紧密相关,专项体能是身体形态、生理机能和运动素质与专项特殊要求相结合的综合产物,与专项技战术、心理和智能呈现出相互影响,相互制约的互动关系。 展开更多
关键词 体能系统结构 体能系统要素 运动素质的整体性 专项能力
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同场对抗性球类项目运动员体能系统结构及表现内涵 被引量:2
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作者 车晓波 《中国体育教练员》 2006年第4期52-53,共2页
运用文献综述法、专家访谈法和逻辑分析法,对同场对抗性球类项目运动员体能的系统结构进行研究,提出了运动员体能系统结构是由专项要素子系统、精神意识子系统和环境子系统共同构成的综合生物体系统结构模型的概念,具体分析了3个子... 运用文献综述法、专家访谈法和逻辑分析法,对同场对抗性球类项目运动员体能的系统结构进行研究,提出了运动员体能系统结构是由专项要素子系统、精神意识子系统和环境子系统共同构成的综合生物体系统结构模型的概念,具体分析了3个子系统的框架结构和内涵以及对运动员体能的影响。 展开更多
关键词 体能系统结构 专项要素子系统 精神意识子系统 环境子系统 表现内涵
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The Study of Farmland Information Management System based on Wireless Sensor Networks 被引量:2
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作者 余华 吕宁波 《Agricultural Science & Technology》 CAS 2010年第7期183-185,188,共4页
To satisfy the need of good quality and high yield primary production,the farmland information management system based on wireless Sensor Network has been proposed.We give priority to analyzing the basic function of t... To satisfy the need of good quality and high yield primary production,the farmland information management system based on wireless Sensor Network has been proposed.We give priority to analyzing the basic function of the system,building the systematic structure of applied system and network system,and implementing the energy control and safety design of system.The system can reduce manpower operation and the error of manual measuration in the course of practical production,reduce the cost of agricultural production,and realize automatization of agricultural production to the largest extent to provide an effective way to realize good quality and high yield primary production,which has an important realistic meaning. 展开更多
关键词 Wireless Sensor Network System structure Energy control System safety
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Smart Service System(SSS):A Novel Architecture Enabling Coordination of Heterogeneous Networking Technologies and Devices for Internet of Things 被引量:6
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作者 yongan guo hongbo zhu longxiang yang 《China Communications》 SCIE CSCD 2017年第3期130-144,共15页
In Internet of Things(IoT), the devices or terminals are connected with each other, which can be very diverse over the wireless networks. Unfortunately, the current devices are not designed to communicate with the col... In Internet of Things(IoT), the devices or terminals are connected with each other, which can be very diverse over the wireless networks. Unfortunately, the current devices are not designed to communicate with the collocated devices which employ different communication technologies. Consequently, the communication between these devices will be realized only by using the gateway nodes. This will cause the inefficient use of wireless resources. Therefore, in this paper, a smart service system(SSS) architecture is proposed, which consists of smart service terminal(SST), and smart service network(SSN), to realize the Io T in a general environment with diverse communication networks, devices, and services. The proposed architecture has the following advantages: i) the devices in this architecture cover multiple types of terminals and sensor-actuator devices; ii) the communications network therein is a converged network, and will coordinate multiple kinds of existing and emerging networks. This converged network offers ubiquitous access for various sensors and terminals; iii) the architecture has services and applications covering all smart service areas. It also provides theadaptability to new services and applications. A SSS architecture-based smart campus system was developed and deployed. Evaluation experiments of the proposed smart campus system demonstrate the SSS's advantages over the existing counterparts, and verify the effectiveness of the proposed architecture. 展开更多
关键词 Internet of Things network architecture clean slate evolutionary approach network heterogeneity reconfiguration
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Trajectory Control of Scale-Free Dynamical Networks with Exogenous Disturbances
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作者 杨洪勇 张顺 宗广灯 《Communications in Theoretical Physics》 SCIE CAS CSCD 2011年第1期185-192,共8页
In this paper, the trajectory control of multi-agent dynamical systems with exogenous disturbances is studied. Suppose multiple agents composing of a scale-free network topology, the performance of rejecting disturban... In this paper, the trajectory control of multi-agent dynamical systems with exogenous disturbances is studied. Suppose multiple agents composing of a scale-free network topology, the performance of rejecting disturbances for the low degree node and high degree node is analyzed. Firstly, the consensus of multi-agent systems without disturbances is studied by designing a pinning control strategy on a part of agents, where this pinning control can bring multiple agents' states to an expected consensus track. Then, the influence of the disturbances is considered by developing disturbance observers, and disturbance observers based control (DOBC) are developed for disturbances generated by an exogenous system to estimate the disturbances. Asymptotical consensus of the multi-agent systems with disturbances under the composite controller can be achieved for scale-free network topology. Finally, by analyzing examples of multi-agent systems with scale-free network topology and exogenous disturbances, the verities of the results are proved. Under the DOBC with the designed parameters, the trajectory convergence of multi-agent systems is researched by pinning two class of the nodes. We have found that it has more stronger robustness to exogenous disturbances for the high degree node pinned than that of the low degree node pinned. 展开更多
关键词 multi-agent systems exogenous disturbances scale-free networks trajectory control pinning control disturbance observers
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Test Bench for Robotics and Autonomy: Overview and Test Results
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作者 Andrea Merlo Andrea Biggio +1 位作者 Giuseppe Casalino EnricaZereik 《Journal of Mechanics Engineering and Automation》 2013年第6期378-386,共9页
In this paper, the TAS-I (Thales Alenia Space-Italy) Test Bench for Robotics and Autonomy (TBRA) is presented. It is based on a flexible and modular software architecture (Framework Engine), in which each functi... In this paper, the TAS-I (Thales Alenia Space-Italy) Test Bench for Robotics and Autonomy (TBRA) is presented. It is based on a flexible and modular software architecture (Framework Engine), in which each functional module (representing the GNC subsystems) implements a key functionality of the GNC (Guidance Navigation and Control). Modules communicate by means of standardised interfaces designed for exchange of necessary information among the modules composing the entire system. This approach permits the interchange-ability of each subsystem without affecting the overall functionalities of the GNC system. In this paper, the TBRA system, together with the implemented functional modules will be described. Tests results will be reported and future development will be discussed. 展开更多
关键词 Autonomous exploration rover test bench for robotics and autonomy framework engine.
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Research on Library Management System based on RFID Technology
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作者 Yingpei WANG 《International Journal of Technology Management》 2015年第3期38-40,共3页
This paper analyses the demand of intelligent bookshelf system, designed the overall structure of intelligent Library shelves system based on RFID and create the system use case model. The analysis and design of the i... This paper analyses the demand of intelligent bookshelf system, designed the overall structure of intelligent Library shelves system based on RFID and create the system use case model. The analysis and design of the intelligent bookshelf system structure from two aspects of hardware and software, puts forward the three layer system structure model of intelligent bookshelf system based on RFID technology. The paper provide the analysis method and the design ideas of library intelligent bookshelf system, has the very high application value, contribute to the realization of library intelligent management and improve the level of library services, provide a useful reference to the development of current book positioning system and intelligent goods shelf system solution. 展开更多
关键词 RFID technology intelligent bookshelf RFID indoor positioning algorithm
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LUCA:Lightweight Ubiquitous Computing Architecture
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作者 孙道清 曹奇英 《Journal of Donghua University(English Edition)》 EI CAS 2009年第3期300-308,共9页
Lightweight ubiquitous computing security architecture was presented. Lots of our recent researches have been integrated in this architecture. And the main current researches in the related area have also been absorbe... Lightweight ubiquitous computing security architecture was presented. Lots of our recent researches have been integrated in this architecture. And the main current researches in the related area have also been absorbed. The main attention of this paper was providing a compact and realizable method to apply ubiquitous computing into our daily lives under sufficient secure guarantee. At last,the personal intelligent assistant system was presented to show that this architecture was a suitable and realizable security mechanism in solving the ubiquitous computing problems. 展开更多
关键词 ubiquitous computing ARCHITECTURE TRUST AWARENESS privacy protection SECURITY
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Containment Control for First-Order Multi-Agent Systems with Time-Varying Delays and Uncertain Topologies 被引量:4
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作者 王付永 杨洪勇 +1 位作者 张淑宁 韩辅君 《Communications in Theoretical Physics》 SCIE CAS CSCD 2016年第8期249-255,共7页
Containment control of first-order multi-agent systems with uncertain topologies and communication timedelays is studied. Suppose system topologies are dynamically changed, a containment control algorithm with time-va... Containment control of first-order multi-agent systems with uncertain topologies and communication timedelays is studied. Suppose system topologies are dynamically changed, a containment control algorithm with time-varying delays is presented. The stability of the control algorithm is studied under the assumption that communication topologies are jointly-connected, and constraint condition of distributed containment control for delayed multi-agent systems is derived with the aid of Lyapunov–Krasovskii function. Simulation results are provided to prove the correctness and effectiveness of the conclusion. 展开更多
关键词 uncertain topologies time-varying delays multi-agent systems containment control jointly-connected
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Lower work function of thermoelectric material by ordered arrays
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作者 Gang Liu Zhenjie Xue +2 位作者 Guiying Xu Cong Yan Tie Wang 《Science China Chemistry》 SCIE EI CAS CSCD 2016年第10期1264-1269,共6页
In this paper, PbTe nanocubes are assembled on Bi_(0.5)Sb_(1.5)Te_3 substrates with both ordered and disordered structures through a straightforward method to form a P-N section. The work function of such semiconducto... In this paper, PbTe nanocubes are assembled on Bi_(0.5)Sb_(1.5)Te_3 substrates with both ordered and disordered structures through a straightforward method to form a P-N section. The work function of such semiconductor system is then measured by the ultraviolet photoelectron spectroscopy. This results show that the work function of orderly arrayed PbTe deposition is much lower than the disordered assemblies. Such change of the work function provides the possibility to tune it in a P-N section system. The change of the work function is attributed to the less surface roughness and easier electron escaping in the ordered structures. 展开更多
关键词 work function PbTe nanocubes Bi0.5Sb1.5Te3 P-N sections
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