نتایج جستجو برای: source and destination countries

تعداد نتایج: 16888888  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1389

there are two major theories of measurement in psychometrics: classical test theory (ctt) and item-response theory (irt). despite its widespread and long use, ctt has a number of shortcomings, which make it problematic to be used for practical and theoretical purposes. irt tries to solve these shortcomings, and provide better and more dependable answers. one of the applications of irt is the as...

Journal: :journal of advances in computer research 0
fatemeh tavakoli department of computer engineering, aligudarz branch, islamic azad university, aligudarz, iran meisam kamarei university of applied science& technology (uast), tehran ,iran gholam reza asgari department of computer engineering, aligudarz branch, islamic azad university, aligudarz, iran

in this paper, an efficient fault-tolerant routing algorithm for mobile ad-hoc networks (manets) is presented. the proposed algorithm increases the network fault-tolerance using natural redundancy of ad-hoc networks. this algorithm is carried out in two stages; 1) the selection of backup nodes 2) the selection of backup route(s). in the first stage, the proposed algorithm chooses nodes with the...

2010
S. André F. Fleischmann

from Different Countries of Origin in EU Member-States S. André, J. Dronkers & F. Fleischmann Last updated: July 20 , 2010 Abstract Drawing on 71593 respondents of the second and third wave of the European Social Survey, we analyse the perceptions of in-group discrimination of 7034 immigrants from 177 different countries of origin in 14 EU-countries. In addition to testing the effects of indivi...

Journal: :CoRR 2013
Amir Sonee Ghosheh Abed Hodtani

THIS PAPER IS ELIGIBLE FOR THE STUDENT PAPER AWARD. In this paper, we study relay networks with orthogonal components in presence of noncausal channel state information (CSI) available at the source. We propose an upper bound on the capacity of the discrete memoryless model (DM) for the case in which just the source component intended for the destination is encoded against the CSI known non-cau...

2012
Sonam Jain Sandeep Sahu

Mobile Ad hoc Networks are consisting of mobile nodes having limited radio range and bandwidth without having any fixed infrastructure. Thus to deliver the message from source to destination does not only require to establish the shortest route for message delivery to the destination. But also to establish such a route that can deliver the message with minimum delay so that the message can be s...

1992
Thomas D. C. Little F. Kao

Delivery of multimedia traffic from distributed sources to a single destination relies on an accurate characterization or guarantee of the behavior of each involved system component. If anticipated bandwidth, delay, and loss characteristics are violated, statistical scheduling approaches fail, resulting in the loss of established source-to-destination synchronization and the introduction of int...

2016
Xiaomeng Li Hongzhong Xu Jiawei Chen Qinghua Chen Jiang Zhang Zengru Di

Human migration is responsible for forming modern civilization and has had an important influence on the development of various countries. There are many issues worth researching, and "the reason to move" is the most basic one. The concept of migration cost in the classical self-selection theory, which was introduced by Roy and Borjas, is useful. However, migration cost cannot address global mi...

Journal: :CoRR 2007
Lifeng Lai Hesham El Gamal H. Vincent Poor

In this work, the role of noisy feedback in enhancing the secrecy capacity of the wiretap channel is investigated. A model is considered in which the feed-forward and feedback signals share the same noisy channel. More specifically, a discrete memoryless modulo-additive channel with a full-duplex destination node is considered first, and it is shown that a judicious use of feedback increases th...

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