Author: Luc Haudot
Publisher:
ISBN:
Category :
Languages : fr
Pages : 0

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Author: SOUMEYA.. GHROUD
Publisher:
ISBN:
Category :
Languages : fr
Pages : 9

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L'ETUDE PORTE SUR L'APPORT DU GENIE LOGICIEL ORIENTE OBJET DANS L'INTEGRATION DES SYSTEMES DE PRODUCTION. LES DEVELOPPEMENTS ONT ETE EFFECTUES DANS LE BUT DE DEFINIR UNE METHODE DE MODELISATION ADAPTEE AUX SYSTEMES INTEGRES DE PRODUCTION (SIP) PUIS DE MODELISER LE SYSTEME DE PILOTAGE D'UNE CELLULE FLEXIBLE EXPERIMENTALE. DE NOMBREUX PROBLEMES SE SONT POSES. ILS SONT LIES ESSENTIELLEMENT AU MANQUE DE RIGUEUR DE CERTAINS FORMALISMES UTILISES, AU RECOURS A LA JUXTAPOSITION DE DIFFERENTS PARADIGMES, AFIN DE COUVRIR TOUTES LES DIMENSIONS DU SYSTEME, SANS SE PREOCCUPER DE LEUR INTEGRATION, A LA NON COUVERTURE DE TOUT LE CYCLE DE VIE, JUSQU'A L'ABSENCE D'UN SUPPORT LOGICIEL. UNE APPROCHE ORIENTEE OBJET POUR LA CONCEPTION DES SIP EST PROPOSEES. LA DEMARCHE DE MODELISATION PRECONISEE PORTE D'ABORD SUR LA DEFINITION D'UNE ARCHITECTURE D'INTEGRATION POUR LE SYSTEME A MODELISER. L'ARCHITECTURE CONCERNE LE SYSTEME DE PILOTAGE AVEC PRISE EN COMPTE DES ASPECTS INFORMATION ET COMMUNICATION. ENSUITE L'ANALYSE ET LA MODELISATION DU SYSTEME SONT EFFECTUEES POUR ABOUTIR FINALEMENT A UN MODELE EXECUTABLE DU SYSTEME. NOTRE CONTRIBUTION SE SITUE AU NIVEAU METHODOLOGIQUE. UNE METHODE COUVRANT TOUT LE CYCLE DE DEVELOPPEMENT, ET BASEE SUR UNE DEMARCHE EN DEUX ETAPES, STRUCTUREE PUIS ORIENTEE OBJET, EST DEFINIE. ELLE SE FONDE DE LA METHODE DES CAS D'UTILISATION QUI PERMET UNE APPROCHE ORIENTEE UTILISATEUR. ELLE UTILISE UN FORMALISME MIXTE ORIENTE OBJET/ RESEAUX DE PETRI ORIGINAL ET QUI EST APPLIQUEE A TROIS NIVEAUX D'ABSTRACTION SUCCESSIFS: INTERFACE, OBJETS ET OPERATIONS. LES AVANTAGES SONT ALORS LA SUPERPOSABILITE DIRECTE ENTRE LE MODELE OBJET ET LE MODELE DYNAMIQUE, LA GARANTIE DE LA TRACABILITE DU MODELE ET AINSI, L'AUTOMATISATION POSSIBLE DU CONTROLE DE COHERENCE ET DE LA GENERATION DE CODE. UNE MISE EN UVRE DE LA METHODE A CONSISTE A DEVELOPPER LE SUPERVISEUR DE LA CELLULE FLEXIBLE DE L'AIPRAO

Author: Soumeya Ghroud
Publisher:
ISBN:
Category :
Languages : fr
Pages : 0

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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: CIKM 13 Conference Committee
Publisher:
ISBN: 9781450326964
Category : Computers
Languages : en
Pages : 938

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Book Description
CIKM'13: 22nd ACM International Conference on Information and Knowledge Management Oct 27, 2013-Nov 01, 2013 San Francisco, USA. You can view more information about this proceeding and all of ACM�s other published conference proceedings from the ACM Digital Library: http://www.acm.org/dl.

Author: Ken Conca
Publisher: Oxford University Press
ISBN: 0199335087
Category : Political Science
Languages : en
Pages : 713

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This handbook is currently in development, with individual articles publishing online in advance of print publication. At this time, we cannot add information about unpublished articles in this handbook, however the table of contents will continue to grow as additional articles pass through the review process and are added to the site. Please note that the online publication date for this handbook is the date that the first article in the title was published online. For more information, please read the site FAQs.

Author: Philip A. Bernstein
Publisher: Addison Wesley Publishing Company
ISBN:
Category : Computers
Languages : en
Pages : 388

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Author: Xavier Begaud
Publisher: John Wiley & Sons
ISBN: 1118586573
Category : Technology & Engineering
Languages : en
Pages : 217

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Ultra Wide Band Technology (UWB) has reached a level of maturity that allows us to offer wireless links with either high or low data rates. These wireless links are frequently associated with a location capability for which ultimate accuracy varies with the inverse of the frequency bandwidth. Using time or frequency domain waveforms, they are currently the subject of international standards facilitating their commercial implementation. Drawing up a complete state of the art, Ultra Wide Band Antennas is aimed at students, engineers and researchers and presents a summary of internationally recognized studies.

Author: Sylvie Charlot
Publisher:
ISBN: 9780753016701
Category : Communication
Languages : en
Pages : 0

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Author: Alain Sibille
Publisher: Academic Press
ISBN: 0123821959
Category : Technology & Engineering
Languages : es
Pages : 385

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Foreword from Arogyaswami Paulraj, Professor (Emeritus), Stanford University (USA) - The first book to show how MIMO principles can be implemented in today's mobile broadband networks and components - Explains and solves some of the practical difficulties that arise in designing and implementing MIMO systems - Both theory and implementation sections are written in the context of the most recent standards: IEEE 802.11n (WiFi); IEEE 802.16 (WIMAX); 4G networks (3GPP/3GPP2, LTE)