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校园网网管体系建设
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作者 胡健 张水平 《南方冶金学院学报》 2001年第1期36-40,共5页
针对校园网网络结构的复杂性、开放性,研究网管体系的构架和建设,阐述网管的定义和内涵,提出一些网管的策略及具体实施办法.同时,对网络的拓展及网络安全问题进行了一些探讨.
关键词 网管 校园 络安全 网管策略 网管体系
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宽带接入网网管系统浅析 被引量:1
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作者 邓志波 《现代电信科技》 2002年第12期6-9,共4页
宽带接入网在中国某些地区已具有相当的规模。对宽带接入网的管理归根结底是对宽带接入设备的管理,宽带接入设备位置分散、数量巨大、标准不统一以及占用大量IP地址资源的特点,决定了对其进行监控与管理具有相当高的难度与复杂性。宽带... 宽带接入网在中国某些地区已具有相当的规模。对宽带接入网的管理归根结底是对宽带接入设备的管理,宽带接入设备位置分散、数量巨大、标准不统一以及占用大量IP地址资源的特点,决定了对其进行监控与管理具有相当高的难度与复杂性。宽带运营商们迫切地希望能找到一个适合于宽带接入网的管理模式,以实现对接入网设备的集中监控与管理。分析了宽带接入网网管系统的需求和3种网管策略,指出分布式网管策略将在宽带接入网网管市场中扮演越来越重要的角色。 展开更多
关键词 宽带接入 络管理 现状 核心交换层 用户接人层 接人汇聚层 分布式宽带网管系统 集中式网管策略
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网络病毒免疫模型
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作者 云晓红 《牡丹江师范学院学报(自然科学版)》 2003年第2期19-21,共3页
对网络病毒传播的形式化描述模型进行了研究,以此为基础,提出了基于网管策略的病毒疫情隔离机制,力图通过该手段防止网络病毒的大面积泛滥,从而达到保护网络基础设施的目的.
关键词 络安全 络病毒 传播模型 免疫模型 网管策略 病毒疫情隔离机制
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A Utility-Based Buffer Management Policy for Improving Data Dissemination in Opportunistic Networks 被引量:5
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作者 Jiansheng Yao Chunguang Ma +2 位作者 Haitao Yu Yanling Liu Qi Yuan 《China Communications》 SCIE CSCD 2017年第7期118-126,共9页
In opportunistic networks, most existing buffer management policies including scheduling and passive dropping policies are mainly for routing protocols. In this paper, we proposed a Utility-based Buffer Management str... In opportunistic networks, most existing buffer management policies including scheduling and passive dropping policies are mainly for routing protocols. In this paper, we proposed a Utility-based Buffer Management strategy(UBM) for data dissemination in opportunistic networks. In UBM, we first design a method of computing the utility values of caching messages according to the interest of nodes and the delivery probability of messages, and then propose an overall buffer management policy based on the utility. UBM driven by receivers completely implements not only caching policies, passive and proactive dropping policies, but also scheduling policies of senders. Simulation results show that, compared with some classical dropping strategies, UBM can obtain higher delivery ratio and lower delay latency by using smaller network cost. 展开更多
关键词 opportunistic networks data dissemination buffer management strategy utility-based
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THE STRATEGY OF RESOURCE MANAGEMENT BASED ON GRID COMPUTING
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作者 Wang Ruchuan Han Guangfa Wang Haiyan 《Journal of Electronics(China)》 2006年第4期554-559,共6页
This paper analyzes the defaults of traditional method according to the resource management method of grid computing based on virtual organization. It supports the concept to ameliorate the resource management with mo... This paper analyzes the defaults of traditional method according to the resource management method of grid computing based on virtual organization. It supports the concept to ameliorate the resource management with mobile agent and gives the ameliorated resource management model. Also pointed out is the methodology of ameliorating resource management and the way to realize in reality. 展开更多
关键词 Virtual organization Control center Grid computing Resource node
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Design of Congestion Control Strategy Based on Pipeline Flux Leak Monitoring Networks 被引量:1
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作者 周鹏 《Journal of Donghua University(English Edition)》 EI CAS 2009年第5期554-558,共5页
Flow against pipeline leakage and the pipe network sudden burst pipe to pipeline leakage flow for the application objects,network congestion avoidance strategy is designed in pipeline leak monitoring.Based on the prop... Flow against pipeline leakage and the pipe network sudden burst pipe to pipeline leakage flow for the application objects,network congestion avoidance strategy is designed in pipeline leak monitoring.Based on the property of Markov chain for network data,a new estimator with particle filter is proposed for congestion control in this paper.The proposed scheme can predict the traffic patterns by the decision-making model.To compare with previous scheme based on fuzzy neural network,the proposed scheme can adaptively adjust the network rate in real-time and reduce the cell loss rate,so that it can avoid the traffic congestion.Simulation results show that network congestion avoidance strategy with particle filter can improve the bandwidth utilization,Transmission Control Protocol (TCP) friendliness and reduce the packet drop rate in Pipeline Flux Leak Monitoring networks. 展开更多
关键词 transmission control protocol congestioncontrol particle filter cell loss rate QoS networks
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Control of Water Supply in Pipe Networks Nonlinear Case
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作者 Nagib G. Nasher Mohammed 《Journal of Mechanics Engineering and Automation》 2011年第4期320-324,共5页
The paper deals with control of supply in pipe networks based on so-called Dynamic Virtual Distortion Method. Making use of the analytical network model of this installation and using presented below, the so-called Vi... The paper deals with control of supply in pipe networks based on so-called Dynamic Virtual Distortion Method. Making use of the analytical network model of this installation and using presented below, the so-called Virtual Distortion Method (VDM), the control of water supply can be performed. Minimization of supply pressure in inlets to the network, subject to inequality constraints imposed on outlet pressure (in chosen nodes) is discussed. Taking advantage of pre-computed influence vectors, the real-time control strategy can be realised with small computational effort and therefore, can be managed with use of hardware-based controllers. Non-linear constitutive relation (water flow vs. pressure head) has been assumed. 展开更多
关键词 Water supply optimal supply control VDM (virtual distortion method) based design.
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Marketing as Innovation Strategy in Non Profit Sector in China: The Network of Influence "Guanxi"
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作者 Antonia Sajardo Moreno Marta Gil Ibafiez Rafael Curras Perez 《Chinese Business Review》 2016年第5期224-238,共15页
In a globalized world, not only the business market is overlapped but also marketing models take shape within economic systems. While there has been a proliferation in the implementation of marketing in the private se... In a globalized world, not only the business market is overlapped but also marketing models take shape within economic systems. While there has been a proliferation in the implementation of marketing in the private sector, this paper provides a useful entry point for the understanding role of marketing within the nonprofit sector focused on China, the second worldwide economic power. A number of senior managers and directors from different Non-Governmental Organizations (NGOs) were interviewed of what they understood marketing to be and how they considered and implemented marketing within organizational strategy. The findings showed that while marketing was identified as an interesting and influential concept, Chinese nonprofit managers generally had a limited understanding of a marketing theory. The article further discusses reasons behind the dynamic based on personalized networks of influence used and the potential implications for nonprofit entities in China, a sector that plays a very noteworthy role in transformative economies. 展开更多
关键词 nonprofit organizations SUSTAINABILITY marketing mix China competitive environment networks ofinfluence GUANXI
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Sustainable Maintenance of Rural Roads in Slovakia
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作者 Lubomir Pepucha Lubos Remek 《Journal of Civil Engineering and Architecture》 2014年第4期486-491,共6页
Systematic approach to the maintenance of rural road network is a very important issue from the viewpoint of public costs. Most countries developed custom PMS (pavement management systems) based on deterministic or ... Systematic approach to the maintenance of rural road network is a very important issue from the viewpoint of public costs. Most countries developed custom PMS (pavement management systems) based on deterministic or probabilistic approach. The main goal is to ensure safety and continuity of road traffic on road network with low intensity and lower technical requirements. Article presents PMS used for Slovakia rural road network based on road construction diagnostics, traffic volume, climate factors and evaluation of maintenance works economics effectives by using of software tools like HDM-4 developed by World Bank. Local road administrators of rural road networks often lack the software equipment, most PMS, however effective, are often cumbersome, demanding in regard to energy, know-how and software equipment. The majority of local road administrators of rural road networks thus resort to non-effective reactive maintenance strategies. This article describes an easy to use method, based on predetermined maintenance repair and rehabilitation standards. A simple method, based on road user cost, is introduced that administrator can use to prepare a list of road section eligible for repair according to their repair priority. 展开更多
关键词 Pavement management system rural roads maintenance repair and rehabilitation.
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