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Influence of pH value and chelating reagent on performance of Li_3V_2(PO_4)3/C cathode material 被引量:2
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作者 向伟 唐艳 +4 位作者 王雁英 钟本和 方为茂 刘恒 郭孝东 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2013年第5期1395-1402,共8页
The Li3V2(PO4)3/C composite cathode material was synthesized via sol-gel method using three different chelating agents (citric acid, salicylic acid and polyacrylic acid) at pH value of 3 or 7. The crystal structur... The Li3V2(PO4)3/C composite cathode material was synthesized via sol-gel method using three different chelating agents (citric acid, salicylic acid and polyacrylic acid) at pH value of 3 or 7. The crystal structure, morphology, specific surface area and electrochemical performance of the prepared samples were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and galvanostatic charge/discharge test. The results show that the effects of pH value on the performance of the prepared materials are greatly related to the chelating agents. With salicylic acid or polyacrylic acid as the chelating reagent, the structure, morphology and electrochemical performance of the samples are greatly influenced by the pH values. However, the structure of the materials with citric acid as the chelating agent does not change as pH value changes, and the materials own uniform particle size distribution and good electrochemical performance. It delivers an initial discharge capacity of 113.58 mA·h/g at 10C, remaining as high as 108.48 mA·h/g after 900 cycles, with a capacity retention of 95.51%. 展开更多
关键词 Li3V2(PO4)3 cathode material sol-gel method chelating agents pH value
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An Analysis of Value Differences in English and Chinese Idioms from the Perspective of Intercultural Communication
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作者 范金玲 杨雁 邹皎 《海外英语》 2018年第4期218-220,共3页
Idioms are the essence and gems of human wisdom and an important carrier of national culture. As a special form of language, they play an important role in intercultural communication. Due to the uniqueness of each cu... Idioms are the essence and gems of human wisdom and an important carrier of national culture. As a special form of language, they play an important role in intercultural communication. Due to the uniqueness of each culture, English and Chinese idioms are different in many aspects, values included. The present paper attempts to analyze the different values in English and Chinese idioms from three aspects: dependence vs independence, past-time orientation vs future-time orientation, and harmony vs competition. And the authors hope that it will be of some practical significance in people's intercultural communication. 展开更多
关键词 English and Chinese idioms value differences time orientation intercultural communication
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An Agent Communication Framework Based on XML and SOAP Technique
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作者 李晓瑜 《科技信息》 2009年第20期I0114-I0115,共2页
This thesis introducing XML technology and SOAP technology,present an agent communication framework based on XML and SOAP technique,and analyze the principle,architecture,function and benefit of it. At the end, based ... This thesis introducing XML technology and SOAP technology,present an agent communication framework based on XML and SOAP technique,and analyze the principle,architecture,function and benefit of it. At the end, based on KQML communication primitive languages. 展开更多
关键词 XML技术 计算机技术 程序设计 网页
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Consensus Seeking for Discrete-time Multi-agent Systems with Communication Delay 被引量:5
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作者 Zhenhua Wang Juanjuan Xu Huanshui Zhang 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI 2015年第2期151-157,共7页
This paper studies the consensus problem for discrete-time multi-agent systems of first-order in the presence of constant communication delay. Provided that the agent dynamics is unstable and the network topology is u... This paper studies the consensus problem for discrete-time multi-agent systems of first-order in the presence of constant communication delay. Provided that the agent dynamics is unstable and the network topology is undirected, effects of two kinds of communication delays on consensus are investigated. When the relative information is affected by delay, we show that the effect of delay can be alleviated by using the historical input information in the protocol design. On the other hand, if the communication delay only influences the actually transmitted information, sufficient condition admitting any large yet bounded delay for consensus is obtained, and the delay in this case is allowed to be unknown and time-varying. Finally, simulation results are provided to demonstrate the effectiveness of the theoretical results. © 2014 Chinese Association of Automation. 展开更多
关键词 Electric network topology
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Consensus Control With a Constant Gain for Discrete-time Binary-valued Multi-agent Systems Based on a Projected Empirical Measure Method 被引量:5
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作者 Ting Wang Min Hu Yanlong Zhao 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2019年第4期1052-1059,共8页
This paper studies the consensus control of multiagent systems with binary-valued observations.An algorithm alternating estimation and control is proposed.Each agent estimates the states of its neighbors based on a pr... This paper studies the consensus control of multiagent systems with binary-valued observations.An algorithm alternating estimation and control is proposed.Each agent estimates the states of its neighbors based on a projected empirical measure method for a holding time.Based on the estimates,each agent designs the consensus control with a constant gain at some skipping time.The states of the system are updated by the designed control,and the estimation and control design will be repeated.For the estimation,the projected empirical measure method is proposed for the binary-valued observations.The algorithm can ensure the uniform boundedness of the estimates and the mean square error of the estimation is proved to be at the order of the reciprocal of the holding time(the same order as that in the case of accurate outputs).For the consensus control,a constant gain is designed instead of the stochastic approximation based gain in the existing literature for binary-valued observations.And,there is no need to make modification for control since the uniform boundedness of the estimates ensures the uniform boundedness of the agents’states.Finally,the systems updated by the designed control are proved to achieve consensus and the consensus speed is faster than that in the existing literature.Simulations are given to demonstrate the theoretical results. 展开更多
关键词 Binary-valued observations CONSENSUS CONTROL CONSTANT GAIN convergence rate multi-agent systems projected empirical measure method
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REDUCING HAIRFALLING AND PILLING STUDY IN RABBIT HAIR/WOOL WORSTED KNITWEAR——CHOOSING AND EVALUATING OF FINISHING AGENT
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作者 王璐 杨冠军 +2 位作者 王俦 曾泳春 陈霞明 《Journal of China Textile University(English Edition)》 EI CAS 1995年第2期8-13,共6页
In the paper, the effects of reducing hairfalling and pilling were compared in rabbit hair/woolworsted knitwear by adding various finishing agents. Reducing rates of hairfalling and pilling wereof 6.7%—66.7% and 9.... In the paper, the effects of reducing hairfalling and pilling were compared in rabbit hair/woolworsted knitwear by adding various finishing agents. Reducing rates of hairfalling and pilling wereof 6.7%—66.7% and 9.3%—73.5% respectively, while fabric handle changed from grade 1 to grade5 in 12 treating method groups. To evaluate the severity of hairfalling and pilling and the conditionof fabric handle of knitwear objectively, quantitatively and comprehensively, we advocated usingthe concept of "geueral evaluating value(GEV)". The results indicated that GEVs of acrylategroups were low, but GEVs of silicone resin groups were high, especially the group with finishingagent solution containing 7% silicone resin No.3 in which reducing rates of pilling and hairfallingwere of 53% (National standard: grade 4.5) and 62%, respectively, and washing stability was verygood, while knitwear’s fabric handle almost did not change. 展开更多
关键词 rabbit hair KNITTED FABRIC PILLING tendency hairfalling finishing agent FABRIC handle general EvaluATING value.
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THE ESTIMATE OF THE EFFECTIVE FUEL COMBUSTION VALUE OF FOREST COMMUNITY IN THE DAXINGAN MOUNTAIN
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作者 刘自强 王希田 +1 位作者 陈大我 张明石 《Journal of Northeast Forestry University》 SCIE CAS CSCD 1994年第1期59-63,共5页
Under the condition of absolute dry, more than thirty forest fuel pararneters,ash content. extract and burning point were measured. By the method of regression step by step. we found an experience formula which can es... Under the condition of absolute dry, more than thirty forest fuel pararneters,ash content. extract and burning point were measured. By the method of regression step by step. we found an experience formula which can estimate effective fuel high combusti on value of forest community from the Daxingan Mountain,and then,By means of modifying moisture content. we gave an approximate formula about actual heat releasing of forest fuels in the forest fire behavior. 展开更多
关键词 Forest community Effective fuel Combustion value
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Distributed Broker-Agent Architecture for Multimedia Communications Traversing NAT/Firewall in NGN
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作者 苟先太 金炜东 《Journal of Southwest Jiaotong University(English Edition)》 2004年第2期123-129,共7页
The forthcoming Next Generation Network (NGN) is an all IP network. Multimedia communications over IP networks are a type of bundled session communications, which cannot directly traverse Network Address Translations ... The forthcoming Next Generation Network (NGN) is an all IP network. Multimedia communications over IP networks are a type of bundled session communications, which cannot directly traverse Network Address Translations (NATs) and firewalls even in NGN. To solve the problem that the existing traversal methods are not suitable for service providers to set up a real system in NGN, a Distributed Broker-agent Architecture (DBA) is addressed. DBA is secure and realizable for service providers and enterprises because it is easy to set up and does not need to upgrade the existing devices like Firewalls, NATs or endpoint devices of subscribers. DBA is composed of two-layer distributed agents, the server proxies and the client agents, in which all multimedia communications use shared tunnels to carry signaling messages and media data between broker-agents, and the call signaling is encrypted over Security Socket Layer (SSL) to guarantee the security of calling. Moreover, the function model and multiplexed connection messages format of DBA are designed, which lays a basis for the protocol in the future NGN. In addition, a simple implementation based on H.323 verifyies the main function of traversing firewalls and NATs. 展开更多
关键词 Broker-agent Next Generation Network Multimedia communication Traversing NAT/firewall
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Analysis of on Intelligent Community Based on Multi-Living Agent
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作者 Bin Li Chao Liu 《Journal of Computer and Communications》 2017年第12期49-56,共8页
A new research method for intelligent community based on multi-living agent was presented. The intelligent community system architecture and the application specific intellectual endowment were analyzed in the paper. ... A new research method for intelligent community based on multi-living agent was presented. The intelligent community system architecture and the application specific intellectual endowment were analyzed in the paper. The prevalence of islands of information on data integration solution was given. This method can improve the integration of intelligent community and accelerate the development speed of the intelligent community. 展开更多
关键词 Multi-Living agent Complex Information Systems Intelligent community WISDOM ENDOWMENT Data Integration
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Optimizing Grey Wolf Optimization: A Novel Agents’ Positions Updating Technique for Enhanced Efficiency and Performance
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作者 Mahmoud Khatab Mohamed El-Gamel +2 位作者 Ahmed I. Saleh Asmaa H. Rabie Atallah El-Shenawy 《Open Journal of Optimization》 2024年第1期21-30,共10页
Grey Wolf Optimization (GWO) is a nature-inspired metaheuristic algorithm that has gained popularity for solving optimization problems. In GWO, the success of the algorithm heavily relies on the efficient updating of ... Grey Wolf Optimization (GWO) is a nature-inspired metaheuristic algorithm that has gained popularity for solving optimization problems. In GWO, the success of the algorithm heavily relies on the efficient updating of the agents’ positions relative to the leader wolves. In this paper, we provide a brief overview of the Grey Wolf Optimization technique and its significance in solving complex optimization problems. Building upon the foundation of GWO, we introduce a novel technique for updating agents’ positions, which aims to enhance the algorithm’s effectiveness and efficiency. To evaluate the performance of our proposed approach, we conduct comprehensive experiments and compare the results with the original Grey Wolf Optimization technique. Our comparative analysis demonstrates that the proposed technique achieves superior optimization outcomes. These findings underscore the potential of our approach in addressing optimization challenges effectively and efficiently, making it a valuable contribution to the field of optimization algorithms. 展开更多
关键词 Grey Wolf Optimization (GWO) Metaheuristic Algorithm Optimization Problems agents’ Positions Leader Wolves Optimal Fitness values Optimization Challenges
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A Comparative Analysis on the Differences between the Chinese and American Family Values
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作者 韩艳玲 《魅力中国》 2011年第14期384-385,共2页
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An Analysis of Cultural Values of Chinese and Foreign Cities' Publicity Videos
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作者 单梦宸 《海外英语》 2015年第6期157-158,共2页
The trend of globalization has a profound impact on the development of the whole world, and there are a lot of events held by several countries. The publicity videos have become a significant tool to disseminate conno... The trend of globalization has a profound impact on the development of the whole world, and there are a lot of events held by several countries. The publicity videos have become a significant tool to disseminate connotation of the city and to attract people all over the world. At the same time, videos also show us different cultural values between China and foreign countries.To analyse different cultural values, the importance of intercultural communication will be deeply understood, and it will be helpful for promoting China's cultural soft power. 展开更多
关键词 CULTURAL values PUBLICITY VIDEOS INTERCULTURAL communication soft power
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设计介入社区更新驱动价值创造的可持续策略探讨
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作者 尤川宝 《城市建筑》 2025年第1期98-102,共5页
作为当前城市更新战略的重要依托,社区更新既要关注物质空间营造,也要响应基层治理的需求,因此设计介入社区更新需要探索系统性介入的可持续策略,从而助力社区复合价值创造。文章结合“制度—生活”的分析范式,解析了社区治理中制度和... 作为当前城市更新战略的重要依托,社区更新既要关注物质空间营造,也要响应基层治理的需求,因此设计介入社区更新需要探索系统性介入的可持续策略,从而助力社区复合价值创造。文章结合“制度—生活”的分析范式,解析了社区治理中制度和生活双向互动的机制,然后结合设计价值体系,分析了设计介入社区驱动价值创造的逻辑。从扩充价值定义、丰富设计产物、拓展价值内容等层面构建了设计介入驱动社区价值创造的途径,并形成了从问题解决到意义构建的全过程。对应上述途径,设计在介入社区更新实践中可通过构建“制度—设计—生活”的共参平台、参与社区公共领域全链路营造、跨专业融合协作等策略,助力空间营造和基层治理同步推进,从而在社区更新中发挥设计的价值驱动和创新作用。 展开更多
关键词 社区更新 制度—生活 设计介入 社区价值
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移动Agent系统通信失效问题研究 被引量:9
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作者 周竞扬 陈韬略 +2 位作者 许平 陆桑璐 陈道蓄 《计算机科学》 CSCD 北大核心 2003年第8期108-111,共4页
The Mobile Agent is thought to be the popular computing model for the next generation's distributed sys-tem. The mobile agent has the following key features: autonomy, collaboration, security and especially mobili... The Mobile Agent is thought to be the popular computing model for the next generation's distributed sys-tem. The mobile agent has the following key features: autonomy, collaboration, security and especially mobility. Agood communication model for mobile agents cooperation is also necessary. In this article, after describing the maincommunication mechanisms, we analyze the methods to solve Agent Tracking and Communication Failure and makeclassification. We also propose a reliable and efficient mechanism named MEFS which uses Detecting methods andthen analyze its performance by giving the experimental data at the end. 展开更多
关键词 移动agent系统 通信失效 人工智能 INTERNET 消息传递
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一种基于黑板模型的多Agent系统通信方法 被引量:29
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作者 王斌 张尧学 陈松乔 《小型微型计算机系统》 CSCD 北大核心 2002年第11期1355-1358,共4页
本文以人工智能领域中的黑板模型为基础 ,提出了在 Internet环境中多 Agent系统 (MAS)的通信方法 .该方法可用于异构的 MAS系统间的通信 .首先把 MAS系统的通信环境划分为不同的层次 ,然后用黑板模型对这些层次进行了描述 .基于这种描... 本文以人工智能领域中的黑板模型为基础 ,提出了在 Internet环境中多 Agent系统 (MAS)的通信方法 .该方法可用于异构的 MAS系统间的通信 .首先把 MAS系统的通信环境划分为不同的层次 ,然后用黑板模型对这些层次进行了描述 .基于这种描述给出了 MAS系统通信用协议和相关参数 .而且 ,还在这些参数中设置了有关服务质量的元素 . 展开更多
关键词 黑板模型 agent系统 通信方法 通信协议
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一种改进的移动Agent通信算法 被引量:24
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作者 冯新宇 陶先平 +3 位作者 曹春 李新 张冠群 吕建 《计算机学报》 EI CSCD 北大核心 2002年第4期357-364,共8页
如何实现远程 Agent通信的位置透明性 ,保证消息不会因为目标 Agent迁移而丢失 ,一直是移动 Agent通信所面临的难题 ,在现有的很多移动 Agent系统中都没有得到解决 .作者在 Mogent系统中提出的通信算法初步实现了通信的位置透明性和可... 如何实现远程 Agent通信的位置透明性 ,保证消息不会因为目标 Agent迁移而丢失 ,一直是移动 Agent通信所面临的难题 ,在现有的很多移动 Agent系统中都没有得到解决 .作者在 Mogent系统中提出的通信算法初步实现了通信的位置透明性和可靠的消息传输 .该文在原有算法的基础上提出了一种改进的适于多种迁移和通信模式的移动 Agent通信算法 ,进一步减少了 Agent的地址注册开销和迁移受到的限制 。 展开更多
关键词 移动agent通信 地址透明性 消息路由 通信失效 算法 INTERNET
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Agent通信语言KQML的实现及应用 被引量:23
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作者 石慧 徐从富 +1 位作者 刘勇 董金祥 《计算机工程与应用》 CSCD 北大核心 2005年第13期94-97,共4页
论文针对KQML语言规范的新变化和实际应用领域的需求,提出了一系列面向Agent通信的KQML实现算法,初步实现了一个较完整的新KQML语言解释器,并将其应用于医疗保健顾问系统中的多Agent通信,收到了较好效果。
关键词 KQML agent 通信
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支持多Agent通信的扩展BDI逻辑 被引量:15
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作者 陈建中 刘大有 +1 位作者 唐海鹰 胡明 《软件学报》 EI CSCD 北大核心 1999年第7期778-784,共7页
BDI(信念、期望和意图)逻辑是当前agent理论研究的热点课题之一,相关研究工作较少涉及对agent间通信的描述.文章旨在提出一个能表示和推理多agent间基于言语行为理论的通信行为的扩展BDI逻辑.该逻辑是一个多... BDI(信念、期望和意图)逻辑是当前agent理论研究的热点课题之一,相关研究工作较少涉及对agent间通信的描述.文章旨在提出一个能表示和推理多agent间基于言语行为理论的通信行为的扩展BDI逻辑.该逻辑是一个多类、带量词并具有分枝时序结构的一阶多模态逻辑,除了包含标准BDI逻辑的模态和时态算子之外,还引入了一些必要的逻辑算子和构造符,用于刻画agent为实现其意图而具有的规划能力,以及对多agent通信给出正确的语用解释.文章讨论了逻辑的语法和语义。 展开更多
关键词 agent通信 言语行为 BDI逻辑 人工智能 DAI
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基于Agent的分布式入侵检测系统模型 被引量:122
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作者 马恒太 蒋建春 +1 位作者 陈伟锋 卿斯汉 《软件学报》 EI CSCD 北大核心 2000年第10期1312-1319,共8页
提出了一个基于 Agent的分布式入侵检测系统模型框架 .该模型提供了基于网络和基于主机入侵检测部件的接口 ,为不同 Agent的相互协作提供了条件 .在分布式环境中 ,按照系统和网络的异常使用模式的不同特征和环境差异 ,可利用不同的 Agen... 提出了一个基于 Agent的分布式入侵检测系统模型框架 .该模型提供了基于网络和基于主机入侵检测部件的接口 ,为不同 Agent的相互协作提供了条件 .在分布式环境中 ,按照系统和网络的异常使用模式的不同特征和环境差异 ,可利用不同的 Agent进行检测 ,各 Agent相互协作 ,检测异常行为 .该模型是一个开放的系统模型 ,具有很好的可扩充性 ,易于加入新的协作主机和入侵检测 Agent,也易于扩充新的入侵检测模式 .它采用没有中心控制模块的并行 Agent检测模式 ,各 Agent之间的协作是通过它们之间的通信来完成的 ,各 Agent之间可以交流可疑信息和进行数据收集 .Agent之间各自独立 ,相互协作 ,合作完成检测任务 .另外 ,模型采用一定的状态检查和验证策略 ,保证了 Agent的自身安全和通信安全 .该模型与特定的系统应用环境无关 ,因此 。 展开更多
关键词 agent 分布式入侵检测系统 网络安全 INTERNET网
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一种高效可靠的移动Agent间通信机制 被引量:17
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作者 周竞扬 陈韬略 +1 位作者 陈道蓄 吕建 《软件学报》 EI CSCD 北大核心 2003年第8期1470-1480,共11页
作为未来分布式系统的一种主流计算模式,移动Agent技术具有广阔的研究前景,协作与通信是移动Agent系统必不可少的组成部分。然而由于Agent的移动性和自主性,现有研究工作所提出的移动Agent间通信机制在可靠性尤其是有效性上存在着一定... 作为未来分布式系统的一种主流计算模式,移动Agent技术具有广阔的研究前景,协作与通信是移动Agent系统必不可少的组成部分。然而由于Agent的移动性和自主性,现有研究工作所提出的移动Agent间通信机制在可靠性尤其是有效性上存在着一定的不足,如不能够在底层理想地解决通信失效等问题,针对上述问题,设计了一种具有高度自适应性的消息传递机制——EMFS(efficiently message forwarding scheme),该协议在Agent寻址上采取指针寻址和集中式寻址相结合的方式;而对于通信失效的解决则采用了以检测法为主,辅以同步的方法,从而能够在彻底解决通信失效的基础上,较大地提高整个通信系统的性能,此外还对协议的主要参数进行了讨论, 从理论上分析比较了EMFS的性能,并给出了模拟实验数据,说明了协议的正确性和高效性。 展开更多
关键词 移动计算 移动agent agent通信 消息传递
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