نتایج جستجو برای: peer-to-peer systems

تعداد نتایج: 10876794  

Journal: :مهندسی برق و الکترونیک ایران 0
javad taheri mohammad kazem akbari

among structured peer-to-peer systems, chord has a general popularity due to its salient features like simplicity, high scalability, small path length with respect to network size, and flexibility on node join and departure. however, chord doesn’t take into account the topology of underlying physical network when a new node is being added to the system, thus resulting in high routing latency an...

Journal: :journal of advances in computer engineering and technology 2015
mahdi sattarivand

abstract— peer-to-peer ( p2p ) systems have been the center of attention in recent years due to their advantage . since each node in such networks can act both as a service provider and as a client , they are subject to different attacks . therefore it is vital to manage confidence for these vulnerable environments in order to eliminate unsafe peers . this paper investigates the use of genetic ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1392

the present study was an attempt to compare the effect of peer metalinguistic corrective feedback on elementary and intermediate efl learners speaking ability to see which level benefits more from this type of feedback. to this end, 117 female efl learners at grade 3, al-zahra high school in kermanshah, iran were non-randomly chosen. the homogeneity of the participants was attained through a pi...

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

this study attempts to investigate the effect of peers’ revision in comparison to that of the teacher, and whether peers’ comments and teachers’ comments facilitate students’ revision? if yes, which one is more effective? also attempts have been made to see which aspects of language are more highlighted by peers versus teachers when commenting. besides, it is investigating the student’s attitud...

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

کرم واره ها (کرم های کامپیوتری)، به علت قابلیت انتشار مستقل و اثرات مخربی که می توانند بر جای بگذارند، یکی از بزرگترین تهدیدات شبکه محسوب می گردند. روش های تشخیص کرم واره باید از سرعت بالایی برخوردار بوده، نرخ خطای پایینی داشته و قابلیت تشخیص کرم واره ها ی جدید را نیز داشته باشند. شبکه های جدیدی مانند شبکه peer-to-peer (p2p)باعث به وجود آمدن زمینه جدیدی برای فعالیت کرم واره ها شده اند. کرم واره...

Abstract— Peer-to-Peer ( P2P ) systems have been the center of attention in recent years due to their advantage . Since each node in such networks can act both as a service provider and as a client , they are subject to different attacks . Therefore it is vital to manage confidence for these vulnerable environments in order to eliminate unsafe peers . This paper investigates the use of genetic ...

Journal: :Computer Networks 2011

Journal: :international journal of occupational hygiene 0
fereydoun azadeh department of medical library and information sciences, school of allied medical sciences, tehran university of medical sciences, tehran, iran. alireza hemmati center for academic and health policy, tehran university of medical sciences, tehran, iran; institute for humanities and social sciences, academic center for education, culture, and research, tehran, iran. javad ghazi-mir-saeed department of medical library and information sciences, school of allied medical sciences, tehran university of medical sciences, tehran, iran. tania azadi school of allied medical sciences, tehran university of medical sciences, tehran, iran.

since the late 1990s, different web-based submission and peer review systems have emerged, and significant numbers of journals have shifted from their old paper-based systems to the web-based ones. exploring the main features of these online systems might lead to better understand this flow. this study was performed to examine the features and capabilities of online submissions and peer review ...

2004
Hossein Bidgoli

Peer-to-peer systems are bringing Windows-based computers onto the Internet as full participants. Peer-to-peer systems utilize the connectivity and capacity to share resources offered by the Internet without being bound by the constraints imposed by the Domain Name System. Peer to peer systems (P2P) are so named because each computer has the same software as the other – every computer is a peer...

2008
Jussi Kangasharju

Peer-to-peer technologies (or P2P for short) have broken through in recent years as an attractive alternative to the traditional client-server-based architectures and systems. A lot of the attention paid to peer-to-peer systems has been caused by the widespread use of P2P file sharing networks, where (often illegal) media content is being distributed. Recently deployed peer-to-peer systems howe...

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