نتایج جستجو برای: access to communication channels

تعداد نتایج: 10746512  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1392

the importance of writing as a complex skill in applied linguistics has drawn the attention of many researchers to evaluate textbooks in order to help learners gain self-sufficiency and autonomy in the field of language use and communication. investigations have shown that developments in textbooks evaluation can promote the quality of pedagogies and consequently the learning. this study attemp...

2012
Asma Amraoui Badr Benmammar Francine Krief Fethi Tarik Bendimerad

The increasing demand for wireless communication introduces efficient spectrum utilization challenge. To address this challenge, cognitive radio (CR) is emerged as the key technology; which enables opportunistic access to the spectrum. CR is a form of wireless communication in which a transceiver can intelligently detect which communication channels are in use and which are not, and instantly m...

پایان نامه :0 1375

investigation the archetype of mother can help the reader to understand poes works, especially his fiction, better, if not fully. motivated by internal and external drives to get into the universe in its manifold form poe was impelled to art and, from various modes of art, to symbolism. how much was poe successful to produce works of art has been a matter of dispute among critics. however, ther...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1390

in one pole of the continuum of language learning, theoreticians and practitioners traditionally consider english as english as a second language or english as a foreign language. however, in the other pole of this continuum where english is thought of as the most effective tool for international communication, it is referred to as a lingua franca. those who favor an approach to english growing...

2006
Christian Morbidoni Giovanni Tummarello Michele Nucci Richard Cyganiak

Over the years, a number of studies and practical efforts have proposed technologies to retrieve, publish, cooperatively edit, lookup and query RDF models. Also, other studies and practices have shown that standard communication channels, e.g. e-mail, RSS and IM, can be successfully used in Semantic Web scenarios. In this paper we collectively refer to such technologies as “Semantic Web data ac...

Journal: :Computer Communications 2005
Jenhui Chen Shiann-Tsong Sheu

The IEEE 802.11 standard supports several independent and equal-capacity communication channels, which can be shared simultaneously and accessed by mobile stations in existing wireless local area networks (WLANs). However, under the restriction of one transceiver per network adapter, these mobile stations can only access one of these communication channels and, thus, the remainder channels are ...

Journal: :Serials: The Journal for the Serials Community 1993

1992
Patrick W. Dowd

A multiprocessor system with a large number of nodes can be built at low cost by combining the recent advances in high capacity channels available through optical ber communication. A highly fault tolerant system is created with good performance characteristics at a reduction in system complexity. The system capitalizes of the self-routing characteristic of wavelength division multiple access t...

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