Contribution à l'étude d'un réseau local à fibre optique à standard réparti PDF Download

Author: Ethon Odysseus Narlis
Publisher:
ISBN:
Category :
Languages : fr
Pages : 148

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LE BUT DE LA THESE CONSISTE A ETUDIER LES COUPLEURS PASSIFS ET ACTIFS EN BRANCHEMENT CASCADE SUR LA FIBRE. CETTE ETUDE EST FAITE POUR POUVOIR REALISER UN RESEAU OPTIMAL A FIBRE OPTIQUE SANS STANDARD. EN PREMIERE ETAPE, LES AUTEURS ONT ETUDIE UN RESEAU PILOTE A SPECTRE ETALE AFIN DEVERIFIER LE BIEN FONDE DE L'APPLICATION DE CE TYPE DE MULTIPLEXAGE. EN SECONDE ETAPE, ILS ONT ETUDIE LA FAISABILITE D'UN RESEAU A COUPLEURS OPTOELECTRONIQUES ACTIFS. UNE MODELISATION DU REPETEUR EST AUSSI PROPOSEE, TENANT COMPTE DU NOMBRE D'ABONNES, DU GAIN EN PUISSANCE OPTIQUE, DE LA BANDE PASSANTE, DE LA STABILITE ET DU RAPPORT SIGNAL SUR BRUIT

Author: GHAVAMEDDIN.. RAZAVIZADEH
Publisher:
ISBN:
Category :
Languages : fr
Pages :

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LES RESEAUX A TRES HAUT DEBIT (SUPERIEUR A 100 MBITS/S) DEMANDENT TOUJOURS DES ATTENTIONS PARTICULIERES TANT EN ETUDE QU'EN ARCHITECTURE. CETTE THESE CONTIENT L'ARCHITECTURE EN COUCHES OSI D'UN RESEAU A TRES HAUT DEBIT. AINSI, LE RESEAU ESCALIBUR QUI EST UN RESEAU D'ENTREPRISE DE DEUXIEME GENERATION EST MINUTIEUSEMENT ETUDIE. SELON LES TERMES DE LA NORME ISO, LE COMMUNICATEUR ESCALIBUR, PARTIE PRINCIPALE DU RESEAU, DOIT REALISER LE NIVEAU PHYSIQUE ET UNE PARTIE DU NIVEAU LIAISON. L'AUGMENTATION DE LA VITESSE DE TRANSMISSION ET LES PROBLEMES QUI Y SONT LIES, AINSI QUE LES METHODES CONCERNANT CETTE AUGMENTATION SONT ETUDIES. POUR REALISER CES OBJECTIFS, PREMIEREMENT, IL FAUT OPTIMISER LES PARAMETRES DU RESEAU (M, TAUX DE BIT ET N, NOMBRE DE FILS), CE QUI EST FAIT PAR COMPARAISON DES DIVERS SUPPORTS DE TRANSMISSION, ET DEUXIEMEMENT DEFINIR LE DEBIT LIMITE DU COMMUNICATEUR, CE QUI EST FAIT PAR COMPARAISON DES DIVERSES TECHNOLOGIES DES CIRCUITS INTEGRES LOGIQUES QUI ABOUTIT AU CHOIX DE LA TECHNOLOGIE ECL, LA TECHNOLOGIE CONVENABLE AU TAUX DE BIT ELEVES. LE SUPPORT DE TRANSMISSION IDEAL POUR CE RESEAU EST LA FIBRE OPTIQUE DONC L'ETUDE DU SYSTEME OPTIQUE ET LA PROPORTION DES COMPOSANTS OPTIQUES (LA DIODE LASER, LA DIODE AVALANCHE, ETC.) SERONT LES DERNIERES ETAPES DE CETTE ETUDE

Author: Sven Boermeester
Publisher:
ISBN: 9781949677072
Category :
Languages : en
Pages :

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Innovate Bristol highlights and celebrates those companies and individuals that are actively working at building a better tomorrow for all. Innovation Ecosystems thrive through the involvement and support of companies and individuals from all industries, which is why the Innovate series not only focuses on the innovators but also those people whom the Innovation Ecosystem, would not be able to thrive without.

Author:
Publisher: Allied Publishers
ISBN: 9780821344620
Category : Juvenile Nonfiction
Languages : en
Pages : 168

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South Asia Rural Development Series. India's economic policies are aimed at increasing economic growth, improving market efficiency and competitiveness, and integrating the Indian economy with global markets. Much of the population and industrial growth is expected to occur in urban centers. Consequently, the demands on the Urban Water Supply and Sanitation sector (UWSS), will be great. Urban Water Supply and Sanitation states the UWSS sector needs urgent attention both to meet these new demands and to ensure that all city-dwellers have access to basic services at reasonable costs. This book outlines the way forward which includes a discussion on institutional reform and financial reform as well an action plan.

Author: Stefano Boccaletti
Publisher: A I P Press
ISBN:
Category : Mathematics
Languages : en
Pages : 384

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The 8th Experimental Chaos Conference again demonstrated the broad spectrum of areas where nonlinear dynamics plays an important role, such as circuits, hydrodynamics, optics, chemistry, fracture dynamics, neuroscience, and cognitive science. Additional contributions outline the trends for development and application of concepts and techniques of nonlinear dynamics.

Author: Martin Lindstrom
Publisher: Currency
ISBN: 0385523890
Category : Business & Economics
Languages : en
Pages : 274

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NEW YORK TIMES BESTSELLER • “A fascinating look at how consumers perceive logos, ads, commercials, brands, and products.”—Time How much do we know about why we buy? What truly influences our decisions in today’s message-cluttered world? In Buyology, Martin Lindstrom presents the astonishing findings from his groundbreaking three-year, seven-million-dollar neuromarketing study—a cutting-edge experiment that peered inside the brains of 2,000 volunteers from all around the world as they encountered various ads, logos, commercials, brands, and products. His startling results shatter much of what we have long believed about what captures our interest—and drives us to buy. Among the questions he explores: • Does sex actually sell? • Does subliminal advertising still surround us? • Can “cool” brands trigger our mating instincts? • Can our other senses—smell, touch, and sound—be aroused when we see a product? Buyology is a fascinating and shocking journey into the mind of today's consumer that will captivate anyone who's been seduced—or turned off—by marketers' relentless attempts to win our loyalty, our money, and our minds.

Author: Don Montague
Publisher: Taylor & Francis
ISBN: 9780419199106
Category : Architecture
Languages : en
Pages : 472

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Book Description
This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.

Author: Wolf, Tobias
Publisher: Universitätsverlag Potsdam
ISBN: 3869564962
Category : Education
Languages : en
Pages : 228

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Higher Education Leadership and Management have become increasingly important throughout the years due to the complexities that have to be addressed by universities worldwide. This can be seen not only in professionalisation in fields such as faculty management or in areas of quality assurance and internationalisation, but also in the need for exchange and training in academic leadership, such as that of deans or study deans, or of university leadership in general. The Dialogue on Innovative Higher Education Strategies (DIES) is addressing this need in emerging countries by building platforms of exchange and offering training courses. Not only is the programme supporting capacity building of human resources, but it is also specifically focusing on inducing change within the universities, such as introducing new instruments or tools in the area of quality assurance and internationalisation, and addressing specific challenges or setting up new structures in the form of projects in the frame of the training. The ‘National Multiplication Trainings’ Programme under DIES is further addressing the sustainability and multiplication of the DIES Programme, that is, alumni are enabled to implement capacity building in higher education leadership and management in their national context. The articles within this volume of the “Potsdamer Beiträge zur Hochschulforschung” (Potsdam Contributions to Higher Education Research) analyse and share the experiences of such training programmes held in Colombia, Democratic Republic of Congo, Guinea, Malaysia, Kenya, and Uganda. They all revolve around the best ways to address the needs and challenges in higher education leadership and management, and in building capacities in these areas.

Author: Martin Maier
Publisher: Cambridge University Press
ISBN: 1139504665
Category : Technology & Engineering
Languages : en
Pages : 276

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The evolution of broadband access networks toward bimodal fiber-wireless (FiWi) access networks, described in this book, may be viewed as the endgame of broadband access. After discussing the economic impact of broadband access and current worldwide deployment statistics, all the major legacy wireline and wireless broadband access technologies are reviewed. State-of-the-art GPON and EPON fiber access networks are described, including their migration to next-generation systems such as OCDMA and OFDMA PONs. The latest developments of wireless access networks are covered, including VHT WLAN, Gigabit WiMAX, LTE and WMN. The advantages of FiWi access networks are demonstrated by applying powerful network coding, heterogeneous optical and wireless protection, hierarchical frame aggregation, hybrid routing and QoS continuity techniques across the optical-wireless interface. The book is an essential reference for anyone working on optical fiber access networks, wireless access networks or converged FiWi systems.

Author: North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development
Publisher:
ISBN: 9789283600046
Category : Aeronautics
Languages : en
Pages :

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