نتایج جستجو برای: number of nodes

تعداد نتایج: 21180978  

Ali Broumandnia, Om-Kolsoom Shahryari

Distributed mutual exclusion is a fundamental problem of distributed systems that coordinates the access to critical shared resources. It concerns with how the various distributed processes access to the shared resources in a mutually exclusive manner. This paper presents fully distributed improved token based mutual exclusion algorithm for distributed system. In this algorithm, a process which...

The proposed algorithm in this research is based on the multi-agent particle swarm optimization as a collective intelligence due to the connection between several simple components which enables them to regulate their behavior and relationships with the rest of the group according to certain rules. As a result, self-organizing in collective activities can be seen. Community structure is crucial...

Journal: :Journal of Combinatorial Theory, Series B 1983

In this paper, a comprehensive model for hub location-routing problem is proposed which no network structure other than connectivity is imposed on backbone (i.e. network between hub nodes) and tributary networks (i.e. networks which connect non-hub nodes to hub nodes). This model is applied in public transportation, telecommunication and banking networks. In this model locating and routing is c...

مقدم, محمد, سمیعی, لیلا , صفری محمدیه, زهرا , عابدی, بهرام ,

Mint is an important medicinal herb that is cultivated in different parts of the world. In order to investigate the effects of salinity stress on morphological characteristics of spearmint (Mentha spicata L.), an experiment was conducted in 2013, based on complete randomized design, under hydroponic conditions, at Research Greenhouse of Faculty of Agriculture, Ferdowsi University of Mashhad, Ir...

Journal: :archives of breast cancer 0
reza parsaei department of surgery, tehran university of medical sciences, tehran, iran fezzeh elyasinia department of surgery, tehran university of medical sciences, tehran, iran armita aboutorabi research department, kaviani breast disease institute, tehran, iran fatemeh saberi research department, kaviani breast disease institute, tehran, iran

background: time of day can affect the outcome of medical procedures and surgical operations. the current study was designed to assess whether time of day can influence the quality of breast cancer surgery or not. methods: patients who underwent breast cancer surgery and axillary lymph node dissection in tehran, iran between march 2012 and march 2013 were enrolled. surgeries were categorized in...

One of the features of wireless sensor networks is that the nodes in this network have limited power sources. Therefore, assessment of energy consumption in these networks is very important. What has been common practice has been the use of traditional simulators to evaluate the energy consumption of the nodes in these networks. Simulators often have problems such as fluctuating output values i...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1390

one very decisive factor in students’ academic destiny is the result they get at final term examinations. because of its importance, both students and teachers are curiously anxious about them. as normally it is the case, these final term tests are prepared hurriedly in short time by teachers which result in students’ dissatisfaction, complaining on how the test was different from their expecta...

Journal: :Urology journal 2011
Tahir Karadeniz Caner Baran Medih Topsakal Ender Kavukcu

PURPOSE To evaluate the effect of the number of dissected lymph nodes (LNs) during radical cystectomy on survival outcomes. MATERIALS AND METHODS Medical files of 211 patients who underwent cystectomy between 1996 and 2009 were retrospectively evaluated. Seventy-four patients were included in the study and divided into two groups regarding the median number of retrieved LNs (median number = 1...

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