نتایج جستجو برای: main network

تعداد نتایج: 1220173  

Wireless sensor networks are often located in areas where access to them is difficult or dangerous. Today, in wireless sensor networks, cluster-based routing protocols by dividing sensor nodes into distinct clusters and selecting local head-clusters to combine and send information of each cluster to the base station and balanced energy consumption by network nodes, get the best performance ...

M. Hariri, N. Mozayani, S. B. Shokouhi,

Dealing with uncertainty is one of the most critical problems in complicatedpattern recognition subjects. In this paper, we modify the structure of a useful UnsupervisedFuzzy Neural Network (UFNN) of Kwan and Cai, and compose a new FNN with 6 types offuzzy neurons and its associated self organizing supervised learning algorithm. Thisimproved five-layer feed forward Supervised Fuzzy Neural Netwo...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ادبیات و زبانهای خارجی 1393

for several years, researchers in familiarity of efl teachers with post-method and its role in second and foreign language learners’ productions have pointed out that the opportunity to plan for a task generally develops language learners’ development (ellis, 2005). it is important to mention that the critical varies in language teaching was shown is the disappearances of the concept of method ...

ژورنال: علوم آب و خاک 2014
امیر تائیدی, , علیرضا مسجدی, ,

Floor intake is one of the best options for diverting mountain rivers' flow. Determination of discharge diverted in different conditions of flow in main channel is one of the main objectives for intake under rack floor condition. Gradient and shape of grid rod floor can affect the discharge deviated. In this experiment, placement and gradient of grid rods and also their effects on the discharge...

Journal: :سنجش از دور و gis ایران 0
علی اکبر متکان دانشگاه شهید بهشتی علیرضا شکیبا دانشگاه شهید بهشتی امین حسینی اصل دانشگاه شهید بهشتی فردین رحیمی دهگلان دانشگاه شهید بهشتی

runoff is one of the major components of calculating water resource processes and is the main issue in hydrology. many concept models are used to predict the amount of runoff, which in most cases depend on topographical and hydrological data. conventional models are not appropriate for areas in which there is little hydrological data. changes in runoff are nonlinear, meaning it is time & space ...

Journal: :پژوهشنامه ایرانی سیاست بین الملل 0

public diplomacy is an idiom that has been noticed increasingly in last decades due to extension of internet and satellite news networks. this type of diplomacy be used related to influence, guidance and mobilization of public opinion for the aims of governmental and non-governmental agents. in this article, the author tried to give analytical answer to this question: in spite of being newest, ...

Journal: :journal of advances in computer research 2014
elham imaie abdolreza sheikholeslami roya ahmadi ahangar

according to this fact that wind is now a part of global energy portfolio and due to unreliable and discontinuous production of wind energy; prediction of wind power value is proposed as a main necessity. in recent years, various methods have been proposed for wind power prediction. in this paper the prediction structure involves feature selection and use of artificial neural network (ann). in ...

Journal: :محیط شناسی 0
مهرداد هادی پور استادیار گروه محیط زیست، دانشکدة کشاورزی و منابع طبیعی، دانشگاه اراک شراره پورابراهیم دانشگاه اراک، دانشکدة کشاورزی و منابع طبیعی، استادیار گروه محیط زیست،

increasing urban network has both positive (accessibility) and negative (air pollution) impacts. in this research air quality is chosen as key elements with respect to their critical roles in quality of life and urban health. the overall objective of this study is to develop a mathematical model to plan appropriate locations for residential land uses and urban transportation network development...

In recent years, the sampling problem in massive graphs of social networks has attracted much attention for fast analyzing a small and good sample instead of a huge network. Many algorithms have been proposed for sampling of social network’ graph. The purpose of these algorithms is to create a sample that is approximately similar to the original network’s graph in terms of properties such as de...

The main problem of vehicle vibration comes from road roughness. An active suspension systempossesses the ability to reduce acceleration of sprung mass continuously as well as to minimizesuspension deflection, which results in improvement of tire grip with the road surface. Thus, braketraction control and vehicle maneuverability can be improved consider ably .This study developeda new active su...

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