نتایج جستجو برای: differentiatedservices network

تعداد نتایج: 672072  

Journal: :journal of advances in computer research 0
reza fotohi department of computer engineering, germi branch, islamic azad university, germi, iran roodabe heydari department of computer engineering, germi branch, islamic azad university, germi, iran shahram jamali department of computer engineering, mohaghegh ardabili university, ardabil, iran

mobile-ad-hoc-networks (manets) are self-configuring networks of mobile nodes, which communicate through wireless links. the infrastructure of a mobile ad hoc network (manet) has no routers for routing, and all nodes must share the same routing protocol to assist each other when transmitting messages. the main issues in manets include the mobility of the network nodes, the scarcity of computati...

Fast and accurate network traffic identification is becoming essential for network management, high quality of service control and early detection of network traffic abnormalities. Techniques based on statistical features of packet flows have recently become popular for network classification due to the limitations of traditional port and payload based methods. In this paper, we propose a metho...

Journal: :مرتع و آبخیزداری 0
عبدالمطلب رضائی استادیار دانشکدة اقتصاد و توسعة کشاورزی دانشگاه تهران سید محمود حسینی استاد دانشکدة اقتصاد و توسعة کشاورزی دانشگاه تهران علی اسدی استاد دانشکدة اقتصاد و توسعة کشاورزی دانشگاه تهران

social network analysis used to study the relationship between stakeholders and actors in natural resource management has become a scientific approach. the purpose of this study was analysis of information exchange network among organizations engage in the sustainable management of natural resources. results of social network analysis revealed that there is weak relationship among organizations...

Journal: :international journal of optimaization in civil engineering 0
r. mansouri m. mohamadizadeh

for any agency dealing with the design of the water distribution network, an economic design will be an objective. in this research, central force optimization (cfo) and differential evolution (de) algorithm were used to optimize ismail abad water distribution network. optimization of the network has been evaluated by developing an optimization model based on cfo and de algorithm in matlab and ...

Journal: :فیزیک زمین و فضا 0
علیرضا حاجیان مربی، گروه فیزیک، دانشگاه آزاد اسلامی واحد نجف آباد، ایران وحید ابراهیم زاده اردستانی دانشیار، گروه فیزیک زمین، مؤسسة ژئوفیزیک دانشگاه تهران و قطب علمی مهندسی نقشه برداری و مقابله با سوانح طبیعی، تهران، ایران کار لوکاس استاد، دانشکده برق وکامپیوتر دانشگاه تهران وقطب علمی کنترل وپردازش هوشمند ،تهران،ایران

the method of artificial neural network is used as a suitable tool for intelligent interpretation of gravity data in this paper. we have designed a hopfield neural network to estimate the gravity source depth. the designed network was tested by both synthetic and real data. as real data, this artificial neural network was used to estimate the depth of a qanat (an underground channel) located at...

Journal: :journal of sciences, islamic republic of iran 2013
g. h. shirdel shirdel

in the maximum flow network interdiction problem, an attacker attempts to minimize the maximum flow by interdicting flow on the arcs of network. in this paper, our focus is on the nodal interdiction for network instead of the arc interdiction. two path inequalities for the node-only interdiction problem are represented. it has been proved that the integrality gap of relaxation of the maximum fl...

Journal: :پژوهش های جغرافیای طبیعی 0
علی نصیری مجتبی یمانی

estimation of pure runoff is a house virtually is complex and different methods of calculation have been proposed. modern methods of solving problems in river engineering and water homes and assess the flow method is used, is that the artificial network pattern of human brain neural network training process, while implementation of the internal relationships between the data and discover for ot...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1390

introruction khawf in(iran)-herat and mazaresharif and shirkhan bandar in (afghanistan)-dushanbe in (tajikistan)_(kirgizstan)-kashghar in(china) project railway network is under construction that it is as a significant corridor for revitalizing silk road corridor in the region .at the present there are three different gauge in the region central asia with 1,520 mm gauge and turkey-islamic repu...

Journal: :journal of computer and robotics 0
hamid reza bakhshi electrical engineering department, shahed university, tehran, iran maryam benabbas electrical engineering department, shahed university, tehran, iran

a wireless sensor network consists of many inexpensive sensor nodes that can be used toconfidently extract data from the environment .nodes are organized into clusters and in each cluster all non-cluster nodes transmit their data only to the cluster-head .the cluster-head transmits all received data to the base station .because of energy limitation in sensor nodes and energy reduction in each d...

Journal: :international journal of information science and management 0
m. keshtgary ph.d. , department of computer engineering shiraz university of technology, shiraz a. h. jahangir ph.d. , department of computer engineering sharif university of technology, tehran

society is growing increasingly dependent upon large-scale, highly distributed systems that operate in unbounded open network environments. unless safeguards are incorporated in the system, a failure of even a single component, e.g. a link or a node, can significantly impact the network performance and can cause highly expensive damages. the discipline of survivability attempts to ensure that n...

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