Download or read book Etude des d fauts des machines lectriques tournantes par analyse du champ magn tique de fuite written by Vincent Fedida and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diagnostiquer et identifier des défauts dans des machines électriques (moteur asynchrone monophasé à condensateur en priorité) à l'aide de mesures sur le champs électromagnétiques et acoustiques.
Download or read book Diagnostic des machines lectriques par l analyse du champ magn tique de fuite Application l identification de d fauts rotoriques d un alternateur vide written by Viet Phuong Bui and published by . This book was released on 2007 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: Une méthode de diagnostic des machines électriques basée sur l'analyse du champ magnétique de fuite et sur l'approche inverse est proposée. Nous avons développé unoutil de modélisation direct en 3D permettant de calculer le champ magnétique de fuite de la machine. Plusieurs méthodes numériques ont été étudiées (éléments finis, moments magnétiques, intégrales de frontières...). Un modèle précis, léger et original a été développé. L'approche inverse a consisté en fonction des mesures du champ à l'extérieur, de retrouver la répartition du flux dans l'entrefer. Nous avons montré que cette approche permet la discrimination, la localisation et la quantification de l'importance des défauts. Finalement, notre approche a été validée expérimentalement grâce à l'instrumentation d'une maquette de machine synchrone (30kVA, 4 pôles) associée à un système de capteurs de champ magnétique Fluxgate.
Download or read book M thodes non invasives de diagnostic de d fauts et d analyse thermique des machines synchrones p les saillants written by Mauricio Andrés Cuevas Salvatierra and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce travail a pour objectif de développer des techniques de surveillance non-invasives sur des machines électriques tournantes de sorte que leurs mises en place soient aisées en environnement industriel. A cet effet, deux méthodes indépendantes sont décrites dans ce mémoire : un diagnostic de défaillances électriques dans des alternateurs connectés au réseau et une étude exploratoire afin d'évaluer la température interne de machines électriques industrielles.La première méthode repose sur l'analyse de deux grandeurs physiques : le champ magnétique rayonné à l'extérieur de la carcasse et les vibrations de la machine tournante. Des modèles mathématiques ont été développés afin de corréler des phénomènes magnétiques et mécaniques qui interviennent dans trois états de la machine : sain et en deux défauts de courts-circuits au stator et au rotor. Ces résultats ont ensuite été validés expérimentalement en laboratoire ainsi que sur des machines de grande puissance en environnement industriel. Un prototype de diagnostic capable de réaliser un examen de défaillance de courts-circuits sur des machines à fort courant a été proposé.Dans un deuxième temps, la méthode d'estimation de la température s'appuie sur des constats relatifs à la variation des caractéristiques des matériaux qui composent un enroulement lorsque la température augmente. Ainsi, la localisation des fréquences de résonances de l'impédance sont impactées. Ce dernier constat a été vérifié expérimentalement.Ce travail de thèse a permis de vérifier la faisabilité des méthodes de diagnostic et de surveillance en ligne dans des machines tournantes avec un minimum d'intrusivité, ceci dans un environnement industriel.
Download or read book In Vessel Melt Retention and Ex Vessel Corium Cooling IAEA Tecdoc No 1906 written by International Atomic Energy Agency and published by International Atomic Energy Agency. This book was released on 2020-08-06 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication results from a technical meeting on phenomenology and technologies relevant to in-vessel melt retention (IVMR) and ex-vessel corium cooling (EVCC). The purpose of the publication is to capture the state of knowledge, at the time of that meeting, related to phenomenology and technologies as well as the challenges and pending issues relevant to IVMR and EVCC for water cooled reactors by summarizing the information provided by the meeting participants in a form useful to practitioners in Member States.
Download or read book Modern Surface Organometallic Chemistry written by Jean-Marie Basset and published by John Wiley & Sons. This book was released on 2009-07-10 with total page 725 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering everything from the basics to recent applications, this monograph represents an advanced overview of the field. Edited by internationally acclaimed experts respected throughout the community, the book is clearly divided into sections on fundamental and applied surface organometallic chemistry. Backed by numerous examples from the recent literature, this is a key reference for all chemists.
Download or read book Immersion in the Visual Arts and Media written by and published by BRILL. This book was released on 2015-10-27 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: Taking an interdisciplinary approach, this volume brings together contributions by distinguished experts from different disciplinary fields for a multidimensional view on immersion in the visual arts and media. In the current media debate, immersion has frequently been linked to the advent of digital technology and its capacity to provide vivid sensations of being placed in or surrounded by an artificial space. The idea of ‘liquidity’ contained in this promise to plunge into another world informs wide areas of contemporary cultural imagination, referring to a myriad of phenomena that relate to experiences of uncertainty and instability, of complexity and change. Considering the fact, however, that the idea of ‘liquid’ spaces appeared long before the digital creation of augmented or virtual environments, the contributors to this volume trace its reemerging throughout the history of the visual arts and media. By focusing on selected works of painting and architecture, photography and cinema, video installation and media art, they explore the variability of immersive experiences according to the different media environments and interfaces that constitute the actual sites of historically shifting relations between media and users. Contributors are: Matthias Bauer, Jörg von Brincken, Robin Curtis, Burcu Dogramaci, Thomas Elsaesser, Ole W. Fischer, Gundolf S. Freyermuth, Ursula Frohne, Henry Keazor, Matthias Krüger, Katja Kwastek, Fabienne Liptay, Karl Prümm, Martin Warnke.
Download or read book Visuality Materiality written by Divya P. Tolia-Kelly and published by Routledge. This book was released on 2016-02-11 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two of the key theoretical shifts over the past two decades of critical work have been the 'visual turn' and the 'material turn'. This book argues that these hitherto distinct fields should be understood as in continual dialogue and co-constitution and focuses on reconceptualising the visual as an embodied, material, and often politically-charged realm. This edited volume elaborates this conceptual argument through a series of contemporary case studies, drawn from the disciplines of Architecture, Sociology, Media Studies, Geography and Cultural Studies. The case studies included are paired around four themes: consumption, translation, practice and ethics. As well as exploring the bringing together of visuality and materiality studies, the contributors raise questions of social identity and social critique, and also focus on the ethics of material visualities.
Download or read book Virtual Voyages written by Jeffrey Ruoff and published by Duke University Press. This book was released on 2006-01-24 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: DIVThe different forms that travelogues have taken (documentaries, IMAX, home movies, ethnographic films) from the 1800s to the present./div
Download or read book Shivers Down Your Spine written by Alison Griffiths and published by Columbia University Press. This book was released on 2013-04-23 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the architectural spectacle of the medieval cathedral and the romantic sublime of the nineteenth-century panorama to the techno-fetishism of today's London Science Museum, humans have gained a deeper understanding of the natural world through highly illusionistic representations that engender new modes of seeing, listening, and thinking. What unites and defines many of these wondrous spaces is an immersive view-an invitation to step inside the virtual world of the image and become a part of its universe, if only for a short time. Since their inception, museums of science and natural history have mixed education and entertainment, often to incredible, eye-opening effect. Immersive spaces of visual display and modes of exhibition send "shivers" down our spines, engaging the distinct cognitive and embodied mapping skills we bring to spectacular architecture and illusionistic media. They also force us to reconsider traditional models of film spectatorship in the context of a mobile and interactive spectator. Through a series of detailed historical case studies, Alison Griffiths masterfully explores the uncanny and unforgettable visceral power of the medieval cathedral, the panorama, the planetarium, the IMAX theater, and the science museum. Examining these structures as exemplary spaces of immersion and interactivity, Griffiths reveals the sometimes surprising antecedents of modern media forms, suggesting the spectator's deep-seated desire to become immersed in a virtual world. Shivers Down Your Spine demonstrates how immersive and interactive museum display techniques such as large video displays, reconstructed environments, and touch-screen computer interactives have redefined the museum space, fueling the opposition between public and private, science and spectacle, civic and corporate interests, voice and text, and life and death. In her remarkable study of sensual spaces, Griffiths explains why, for centuries, we keep coming back for more.
Download or read book Jet Age Aesthetic written by Vanessa R. Schwartz and published by Yale University Press. This book was released on 2020-02-21 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: A stunning look at the profound impact of the jet plane on the mid-century aesthetic, from Disneyland to Life magazine Vanessa R. Schwartz engagingly presents the jet plane’s power to define a new age at a critical moment in the mid-20th century, arguing that the craft’s speed and smooth ride allowed people to imagine themselves living in the future. Exploring realms as diverse as airport architecture, theme park design, film, and photography, Schwartz argues that the jet created an aesthetic that circulated on the ground below. Visual and media culture, including Eero Saarinen’s airports, David Bailey’s photographs of the jet set, and Ernst Haas’s experiments in color photojournalism glamorized the imagery of motion. Drawing on unprecedented access to the archives of The Walt Disney Studios, Schwartz also examines the period’s most successful example of fluid motion meeting media culture: Disneyland. The park’s dedication to “people-moving” defined Walt Disney’s vision, shaping the very identity of the place. The jet age aesthetic laid the groundwork for our contemporary media culture, in which motion is so fluid that we can surf the internet while going nowhere at all.
Download or read book Mediarchy written by Yves Citton and published by John Wiley & Sons. This book was released on 2019-11-11 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: We think that we live in democracies: in fact, we live in mediarchies. Our political regimes are based less on nations or citizens than on audiences shaped by the media. We assume that our social and political destinies are shaped by the will of the people without realizing that ‘the people’ are always produced, both as individuals and as aggregates, by the media: we are all embedded in mediated publics, ‘intra-structured’ by the apparatuses of communication that govern our interactions. In this major book, Yves Citton maps out the new regime of experience, media and power that he designates by the term ‘mediarchy’. To understand mediarchy, we need to look both at the effects that the media have on us and also at the new forms of being and experience that they induce in us. We can never entirely escape from the effects of the mediarchies that operate through us but by becoming more aware of their conditioning, we can develop the new forms of political analysis and practice which are essential if we are to rise to the unprecedented challenges of our time. This comprehensive and far-reaching book will be essential reading for students and scholars in media and communications, politics and sociology, and it will be of great interest to anyone concerned about the multiple and complex ways that the media – from newspapers and TV to social media and the internet – shape our social, political and personal lives today.
Download or read book The Panorama written by Stephan Oettermann and published by . This book was released on 1997 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: The significance of panorama painting in the nineteenth century is frequently cited in contemporary debates about visuality and the emergence of the modern spectator. Stephan Oettermann's The Panorama is the first major historical study to appear in English of the rich phenomenon of the panorama, one of the most influential forms of visual entertainment in the nineteenth century. In this richly illustrated book Oettermann gives readers a concrete sense of the structural and experiential reality of the panorama, and the many forms it took throughout Europe and North America--a crucial task given that very few of the original nineteenth-century panoramas survive. At the same time, he outlines the many ways in which these remarkable and often immense 360-degree images were part of a larger transformation of the status of the observer and of popular culture. Thus, the panorama is treated not only as a new kind of image but also as an architectural and informational component of the new urban spaces and media networks.
Download or read book A Midsummer s Nightmare written by Garry Kilworth and published by Gateway. This book was released on 2011-09-29 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sherwood Forest, home of Oberon, Titania, Puck, Cobweb, Peaseblossom and the rest of the mob, has been whittled away by urban development. It's time to move on, the fairies decide. Sid, their captive, a kindly if gruff young car mechanic, teaches Titania to drive, and on Midsummer's Eve the party sets off in a battered and smelly old bus. They're bound for the New Forest, where they hope to be able to regenerate their magic. The fairies' journey is full of excitement. At a village fair, they show the morris dancers how to cut previously undreamt-of capers. Titania falls in love with a human baby and steals her from her pram, starting a nationwide search for the missing infant. The fairies then link up with a group of New Age travellers on their way to Stonehenge, who befriend them almost without question. Finally, a fight to the death between Titania and the terrifying and sadistic Morgan-le-Fey must take place before everyone can settle down into some form of harmony and peace.
Download or read book The Man With the Golden Torc written by Simon R. Green and published by Penguin. This book was released on 2007-06-05 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: New York Times bestselling author Simon Green introduces a new kind of hero, one who fights the good fight against some very old foes in the first novel in the Secret Histories series. The name’s Bond. Shaman Bond. Actually, that's just his cover. His real name is Eddie Drood, but when your job includes a license to kick supernatural arse on a regular basis, you find your laughs where you can. For centuries, his family has been the secret guardian of Humanity, all that stands between all of you and all of the really nasty things that go bump in the night. As a Drood field agent he wore the golden torc, he killed monsters, and he protected the world. He loved his job. Right up to the point where his own family declared him rogue for no reason. Now, the only people who can help Eddie prove his innocence are the people he used to consider his enemies...
Download or read book The Dark Design written by Philip Jose Farmer and published by Tor Books. This book was released on 2010-06-08 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: A New York Times bestsesller, The Dark Design is the third novel in Hugo and Nebula award-winning science fiction legend Philip José Farmer's Riverworld series. Milton Firebrass, once Mark Twain's enemy and now his greatest ally, plans to build a giant airship that can fly to the North Pole of Riverworld. Once there, he hopes to learn the secret of the mysterious tower that dominates the landscape and find the answer to his most urgent question: could the tower contain the Ethicals, the enigmatic beings that created Riverworld? Meanwhile, Jill Gulbirra is challenged for the job of piloting the airship by none other than Cyrano de Bergerac. As if there were not enough challenges facing the crew, they soon suspect there is an agent of the Ethicals among their number, plotting their destruction.... At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.
Download or read book Sweet Silver Blues written by Glen Cook and published by Penguin. This book was released on 1990-05-01 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: It should have been a simple job. But for Garrett, a human detective in a world of gnomes, tracking down the woman to whom his dead pal Danny left a fortune in silver is no slight task. Even with the aid of Morley, the toughest half-elf around, Garrett isn't sure he'll make it out alive from a land where magic can be murder, the dead still talk, and vampires are always hungry for human blood.
Download or read book Shovel Ready written by Adam Sternbergh and published by Broadway Books. This book was released on 2014 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the dirty bomb hit Times Square and the city became a shell of itself, Spademan has become a hitman, not a garbage man. But when he's hired to kill the daughter of a powerful evangelist, his unadorned street life is upended.
