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Etude Des Potentialites Offertes Par Les Technologies De Transmission Optique Flexible Pour Les Reseaux Metro
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Book Synopsis Étude des potentialités offertes par les technologies de transmission optique flexible pour les réseaux métro by : Sofiene Blouza
Download or read book Étude des potentialités offertes par les technologies de transmission optique flexible pour les réseaux métro written by Sofiene Blouza and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'évolution vers de nouveaux services, comme la TV à la demande, nécessitant de grosses bandes passantes remet en question les débits transportés par chaque canal optique d'un réseau WDM. Les débits des canaux ont atteint aujourd'hui les 100 Gbit/s. Cette montée en débit doit être accompagnée par de nouvelles fonctionnalités au sein des réseaux de transport optiques. Améliorer la flexibilité et assurer la transparence des réseaux optiques sont des défis très importants auxquels les opérateurs doivent faire face aujourd'hui. Un réseau optique est dit transparent, si les signaux optiques transportés ne subissent aucune conversion optoélectronique sauf au moment de leur insertion et de leur extraction dans le réseau optique. La flexibilité, quant à elle, concerne principalement les fonctions d'agrégation et de désagrégation optiques. Aujourd'hui ces fonctions d'agrégation et de désagrégation sont réalisées dans le domaine électronique, ce qui avec la montée du débit, va engendrer un coût important pour les opérateurs. Une manière d'y remédier serait de trouver une technologie adaptée à la montée du débit et offrant la possibilité de faire de l'agrégation et de la désagrégation optique des flux de trafics. Dans cette thèse nous proposons d'étudier une technique de commutation tout-optique offrant la possibilité de faire de la commutation optique intra-canal. Cette technique, baptisée multi-bande OFDM, consiste à diviser un canal WDM en plusieurs entités appelées sous-bandes. Le nombre de ces entités dépend des contraintes technologiques des équipements utilisés pour générer le canal multi-bande (les filtres optiques, les convertisseurs analogiques/numérique et numériques/analogiques). Nous comparons la technologie multi-bande OFDM par rapport à des technologies tendancielles mono-bande : le cas mono-bande opaque et mono-bande transparent. Nous démontrons que la technologie multi-bande OFDM peut être un compromis entre ces deux technologies pour les futurs réseaux de télécommunications optiques. Pour ce faire, nous calculons les performances en termes de blocage. Nous étudions l'impact de la conversion de longueurs d'onde sur les réseaux multi-bande OFDM ainsi que l'impact d'augmenter les nombres de sous-bandes sur les performances du réseau. Nous dégageons les limites technologiques de cette approche. Dans une autre partie de l'étude, nous montrons l'intérêt économique de la technologie multi-bande OFDM. Nous exposons le gain en coût des émetteurs/récepteurs obtenu grâce au déploiement de la technologie multi-bande OFDM sur un réseau cœur et un réseau métropolitain.
Book Synopsis Disaster risk reduction in school curricula: case studies from thirty countries by :
Download or read book Disaster risk reduction in school curricula: case studies from thirty countries written by and published by UNESCO. This book was released on 2012 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Agent-based Spatial Simulation with NetLogo, Volume 2 by : Arnaud Banos
Download or read book Agent-based Spatial Simulation with NetLogo, Volume 2 written by Arnaud Banos and published by Elsevier. This book was released on 2016-11-26 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whereas Volume 1 introduced the NetLogo platform as a means of prototyping simple models, this second volume focuses on the advanced use of NetLogo to connect both data and theories, making it ideal for the majority of scientific communities. The authors focus on agent-based modeling of spatialized phenomena with a methodological and practical orientation, demonstrating how advanced agent-based spatial simulation methods and technics can be implemented. This book provides theoretical and conceptual backgrounds, as well as algorithmic and technical insights, including code and applets, so that readers can test and re-use most of its content. - Illustrates advanced concepts and methods in agent-based spatial simulation - Features practical examples developed, and commented on, in a unique platform - Provides theoretical and conceptual backgrounds, as well as algorithmic and technical insights, including code and applets, so that readers can test and re-use most of its content
Book Synopsis Plans and Situated Actions by : Lucille Alice Suchman
Download or read book Plans and Situated Actions written by Lucille Alice Suchman and published by Cambridge University Press. This book was released on 1987-11-26 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: A compelling case for the re-examination of interface design models is presented by this text's assertion that human behavior is not taken into account in the planning model generally favored by artificial intelligence.
Download or read book Geosimulation written by Itzhak Benenson and published by John Wiley & Sons. This book was released on 2004-08-20 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geosimulation is hailed as ‘the next big thing’ in geographic modelling for urban studies. This book presents readers with an overview of this new and innovative field by introducing the spatial modelling environment and describing the latest research and development using cellular automata and multi-agent systems. Extensive case studies and working code is available from an associated website which demonstrate the technicalities of geosimulation, and provide readers with the tools to carry out their own modelling and testing. The first book to treat urban geosimulation explicitly, integrating socio-economic and environmental modelling approaches Provides the reader with a sound theoretical base in the science of geosimulation as well as applied material on the construction of geosimulation models Cross-references to an author-maintained associated website with downloadable working code for readers to apply the models presented in the book Visit the Author's Website for further information on Geosimulation, Geographic Automata Systems and Geographic Automata Software http://www.geosimulationbook.com
Author :Director Edmond J Safra Center for Ethics and Roy L Furman Professorship of Law Lawrence Lessig Publisher :Createspace Independent Publishing Platform ISBN 13 :9781537290904 Total Pages :378 pages Book Rating :4.2/5 (99 download)
Book Synopsis Code by : Director Edmond J Safra Center for Ethics and Roy L Furman Professorship of Law Lawrence Lessig
Download or read book Code written by Director Edmond J Safra Center for Ethics and Roy L Furman Professorship of Law Lawrence Lessig and published by Createspace Independent Publishing Platform. This book was released on 2016-08-31 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: There's a common belief that cyberspace cannot be regulated-that it is, in its very essence, immune from the government's (or anyone else's) control.Code argues that this belief is wrong. It is not in the nature of cyberspace to be unregulable; cyberspace has no "nature." It only has code-the software and hardware that make cyberspace what it is. That code can create a place of freedom-as the original architecture of the Net did-or a place of exquisitely oppressive control.If we miss this point, then we will miss how cyberspace is changing. Under the influence of commerce, cyberpsace is becoming a highly regulable space, where our behavior is much more tightly controlled than in real space.But that's not inevitable either. We can-we must-choose what kind of cyberspace we want and what freedoms we will guarantee. These choices are all about architecture: about what kind of code will govern cyberspace, and who will control it. In this realm, code is the most significant form of law, and it is up to lawyers, policymakers, and especially citizens to decide what values that code embodies.
Book Synopsis Deaf in America by : Carol A. Padden
Download or read book Deaf in America written by Carol A. Padden and published by Harvard University Press. This book was released on 1990-09-01 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by authors who are themselves Deaf, this unique book illuminates the life and culture of Deaf people from the inside, through their everyday talk, their shared myths, their art and performances, and the lessons they teach one another. Carol Padden and Tom Humphries employ the capitalized "Deaf" to refer to deaf people who share a natural language—American Sign Language (ASL—and a complex culture, historically created and actively transmitted across generations. Signed languages have traditionally been considered to be simply sets of gestures rather than natural languages. This mistaken belief, fostered by hearing people’s cultural views, has had tragic consequences for the education of deaf children; generations of children have attended schools in which they were forbidden to use a signed language. For Deaf people, as Padden and Humphries make clear, their signed language is life-giving, and is at the center of a rich cultural heritage. The tension between Deaf people’s views of themselves and the way the hearing world views them finds its way into their stories, which include tales about their origins and the characteristics they consider necessary for their existence and survival. Deaf in America includes folktales, accounts of old home movies, jokes, reminiscences, and translations of signed poems and modern signed performances. The authors introduce new material that has never before been published and also offer translations that capture as closely as possible the richness of the original material in ASL. Deaf in America will be of great interest to those interested in culture and language as well as to Deaf people and those who work with deaf children and Deaf people.
Book Synopsis Collaboration with Parents of Exceptional Children by : Marvin J. Fine
Download or read book Collaboration with Parents of Exceptional Children written by Marvin J. Fine and published by . This book was released on 1991 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Watsuji Tetsuro's Rinrigaku by : Tetsur? Watsuji
Download or read book Watsuji Tetsuro's Rinrigaku written by Tetsur? Watsuji and published by SUNY Press. This book was released on 1996-01-01 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Watsuji Tetsuro's Rinrigaku (literally, the principles that allow us to live in friendly community) has been regarded as the definitive study of Japanese ethics for half a century. In Japan, ethics is the study of human being or ningen. As an ethical being, one negates individuality by abandoning one's independence from others. This selflessness is the true meaning of goodness.
Book Synopsis The Politics of Deafness by : Owen Wrigley
Download or read book The Politics of Deafness written by Owen Wrigley and published by Gallaudet University Press. This book was released on 1997 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lays out the practical steps families can take to adjust to a loved one's hearing loss. The book shows how the exchange of information can be altered at fundamental levels, what these alterations entail, and how they can affect one's ability to understand and interpret spoken communication.
Book Synopsis The Anthropology of Fear by : Andrea Boscoboinik
Download or read book The Anthropology of Fear written by Andrea Boscoboinik and published by LIT Verlag Münster. This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Avoiding the lure of a psychological conceptualisation of fear, all chapters in this volume substantiate the criticism towards specific postmodern trends in anthropology that would rather focus on the individual dimension of fear, thus missing its social aspects. Fear cannot and must not be reduced to an emotional phenomenon, but must rather be regarded by anthropologists as the prime mover of rational management in dangerous or risky situations. The various forms of fear appear to be shaped by societies." -- Christian Giordano, U. of Fribourg (Series: Fribourg Studies in Social Anthropology / Freiburger Sozialanthropologische Studien / Etudes d'Anthropologie Sociale de l'Universite de Fribourg - Vol. 41)
Download or read book Creating Memory written by John Warkentin and published by Becker Associates. This book was released on 2010 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Toronto has over 600 public outdoor sculptures, works of art that provide a sense of the rich variety of life and work in the city, its peoples, cultures and aspirations. Interest in commissioning public sculpture began slowly in the nineteenth and early twentieth century, but increased rapidly after the 1950s.This is a book about the sculptures and how they disclose the city to itself. Creating Memory’s two introductory sections examine the factors behind this expansion over time and the changes in style as one generation of sculptors succeeded another. It looks at the reasons behind the changes as sculptures were conceived, sculpted and erected. More than 10 categories of sculptures are defined and discussed, including Founding the City, Natural Environment, Immigration, Ethnic Groups, Economic Activities, Disaster and Calamity, War And Conflict, Leaders, Ordinary Citizens, Community Life, and Works of the Imagination.
Download or read book Hackers & Painters written by Paul Graham and published by "O'Reilly Media, Inc.". This book was released on 2004-05-18 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: The author examines issues such as the rightness of web-based applications, the programming language renaissance, spam filtering, the Open Source Movement, Internet startups and more. He also tells important stories about the kinds of people behind technical innovations, revealing their character and their craft.
Book Synopsis Public Art in Vancouver by : John Steil
Download or read book Public Art in Vancouver written by John Steil and published by TouchWood Editions. This book was released on 2009 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Featuring more than 500 public art installations, this is the first comprehensive guidebook to explore Vancouver's urban treasures. The character of a city is revealed by the public art that neighborhoods and residents collectively place on streets and walls and in their public spaces. As a city known internationally for its breathtaking cityscapes and mountain backdrop, Vancouver has much to offer visually including the diverse and thriving public art in the city's neighborhoods. Engaging color photos and detailed descriptions that focus on the historical and cultural context of each art piece, its place in modern art and the artist who created it allow for a greater understanding of these urban treasures. Easy-to follow maps take readers to communities and destinations such as False Creek, Chinatown, the West End, Downtown, East Vancouver, VanDusen Garden, Stanley Park and the University of British Columbia. Tour the better known and the unknown art installations that are made from every possible media and include monuments, paintings, murals, tapestries, figures, First Nations art, relics, busts, fountains, gateways, mosaics, sculptures and reliefs.
Book Synopsis Enabling Environments by : Edward Steinfeld
Download or read book Enabling Environments written by Edward Steinfeld and published by Springer Science & Business Media. This book was released on 1999-04-30 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection focuses on methods for measuring the role of the physical environment in the disablement process and the limitations of current theory, knowledge, and research in the field. Linking the chapters is a new paradigm of research on accessibility, which emphasizes that disability is both a social and an individual process and is consistent with recent developments in a disability rights, rehabilitation practice, and environmental design.
Book Synopsis Guidelines for Library Services to Persons with Dyslexia by : Gyda Skat Nielsen
Download or read book Guidelines for Library Services to Persons with Dyslexia written by Gyda Skat Nielsen and published by Hague, Netherlands : IFLA Headquarters. This book was released on 2001 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 1996 Writer's Market by : Mark Garvey
Download or read book 1996 Writer's Market written by Mark Garvey and published by . This book was released on 1995 with total page 1078 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ideal resource for up-and-coming (and already arrived) writers, the Writer's Market features information vital to the success of an author's career. This edition contains the facts on 4,000 opportunities, including up-to-date listings of buyers of books, articles, and stories and listings of contests and awards, plus articles and interviews with top professionals.
