نتایج جستجو برای: network analysis

تعداد نتایج: 3332024  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی معدن 1386

قابلیت خردایش مواد با استفاده از اندیس کار تعیین می شود که در طراحی مدارهای خدایش به طور گسترده مورد استفاده قرار می گیرد. علی رغم مزیت های زیاد این اندیس تعیین آن خسته کننده وقت گیر، نیاز به حدود 15 کیلوگرم نمونه آماده سازی شده و همچنین نیاز به یک آسیای استاندارد دارد. از اینرو تعیین آسانتر و سریعتر این اندیس مورد توجه بوده است. دراین تحقیق در ادامه کارهای قبلی انجام شده رابطه اندیس باند با خص...

Journal: :نشریه مهندسی عمران و نقشه برداری 0
امیرحسین قربانپور دانشگاه تهران مهدی قاسمیه دانشگاه تهران

composite steel concrete composite floor used mainly in the commercial and office building has lighter weight and is considered very economical. the light weight natures of this type of floor causes some vibration problems when it is subjected to loadings such as human footstep loading. the dynamic characteristics of these floors are dependent on several parameters such as joist span, girder sp...

Journal: :جنگل و فرآورده های چوب 0
الهه علی بابایی عمران دانشجوی کارشناسی ارشددانشگاه تهران مهدی قربانی استادیار دانشگاه تهران محمدرضا مروی مهاجر استاد دانشگاه تهران محمد عواطفی همت استادیار دانشگاه تهران

forest management as one of the important source of production is crucial and critical. in taking over the forest resources as one of the most important of natural resources in the world, it is essential to consider local stakeholders to implement forest action plan for forest co-management. therefore, this study aims at achieving to proper management of forests based on evaluating the stakehol...

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...

Journal: :journal of ai and data mining 2013
mohammad ghasemzadeh

binary decision diagram (bdd) is a data structure proved to be compact in representation and efficient in manipulation of boolean formulas. using binary decision diagram in network reliability analysis has already been investigated by some researchers. in this paper we show how an exact algorithm for network reliability can be improved and implemented efficiently by using cudd - colorado univer...

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...

Journal: :hepatitis monthly 0
vahdat poortahmasebi hepatitis b molecular laboratory, department of virology, school of public health, tehran university of medical sciences, tehran, ir iran mansour poorebrahim department of medical biotechnology, school of advanced technologies in medicine, tehran university of medical sciences, tehran, ir iran; department of medical biotechnology, school of advanced technologies in medicine, tehran university of medical sciences, tehran, ir iran. tel: +98-9120192664 saeideh najafi department of microbiology, tonekabon branch, islamic azad university, tonekabon, ir iran seyed mohammad jazayeri hepatitis b molecular laboratory, department of virology, school of public health, tehran university of medical sciences, tehran, ir iran seyed moayed alavian middle east liver diseases (meld) center, tehran, ir iran seyed shahriar arab department of biophysics, faculty of biological sciences, tarbiat modares university, tehran, ir iran

conclusions our results revealed the possible crucial genes and mirnas involved in the initiation and progression of hcc cells infected with hcv. results based on the topological analysis of mirna-hubgene network, we identified the key hub mirnas. in order to identify the most important common sub-network, we aligned two ppi networks using netal tool. the c-jun gene was identified as the most i...

Journal: :مرتع و آبخیزداری 0
فاطمه سالاری دانشجوی کارشناسی ارشد آبخیزداری، دانشکدة منابع طبیعی دانشگاه تهران مهدی قربانی استادیار دانشکدة منابع طبیعی دانشگاه تهران آرش ملکیان استادیار دانشکدة منابع طبیعی دانشگاه تهران

water resources local governance can is one of the most influential collaborative approach in the water resources management. social monitoring of local stakeholders plays an important role in planning, resources management and water efficient governance. therefore to achieve this goal, social network analysis has been considered as an approach of analysis of the relationship among local stakeh...

Hadi Zare Mahdi Hajiabadi

Community detection is a task of fundamental importance in social network analysis. Community structures enable us to discover the hidden interactions among the network entities and summarize the network information that can be applied in many applied domains such as bioinformatics, finance, e-commerce and forensic science. There exist a variety of methods for community detection based on diffe...

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