نتایج جستجو برای: automobile transmissions

تعداد نتایج: 17886  

Journal: :Trans. Emerging Telecommunications Technologies 2015
Wooyeol Choi Hyuk Lim

In a multi-packet reception (MPR) system, a wireless node can successfully receive multiple packets from simultaneous transmitters. The increase in the number of simultaneous transmissions leads to higher throughput as long as the transmissions can be successfully decoded by the receiver. The maximum number of simultaneous transmissions that the receiver can successfully decode should be determ...

Journal: :Wireless Communications and Mobile Computing 2007
Thomas Nilsson Greger Wikstrand Jerry Eriksson

Compared to unicast traffic, multicast is not protected by any ARQ mechanism in 802.11 networks: collisions with other multicast and unicast transmissions are not detected and senders will not adapt to the contention situation by backing off. This results in an unreliable service for multicast transmissions. We propose early multicast collision detection (EMCD), an algorithm with the purpose of...

2012
Chen Wang Li Yu Yanan Hao

Computer has become the most significant helper and tool around the world. It is used in all kinds of electronic devices and improves their usability much. Automobile is a great example in this topic to show how computer changes the way people interact with an item. During the past decades, more and more mechanical devices in automobile are replaced by electrical substitutions and the interface...

Journal: :Canadian Medical Association Journal 2011

Journal: :Perception & Psychophysics 1969

Journal: :Scientific American 1913

Journal: :International Journal for Research in Applied Science and Engineering Technology 2020

Journal: :Scientific American 1902

Journal: :The Annals of occupational hygiene 2012
Jacques Ameille Nicole Rosenberg Mireille Matrat Alexis Descatha Dominique Mompoint Lounis Hamzi Catherine Atassi Manuela Vasile Robert Garnier Jean-Claude Pairon

PURPOSE Automobile mechanics have been exposed to asbestos in the past, mainly due to the presence of chrysotile asbestos in brakes and clutches. Despite the large number of automobile mechanics, little is known about the non-malignant respiratory diseases observed in this population. The aim of this retrospective multicenter study was to analyse the frequency of pleural and parenchymal abnorma...

Journal: :Environment and Urbanization 1996

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