Download or read book Etude exp rimentale de l coulement autour d une marche descendante en d rapage written by Emmanuel Le Huu Nho and published by . This book was released on 1994 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Etude exp rimentale d un coulement turbulent en aval d une marche descendante written by Muhammad Sya Badri Kusuma and published by . This book was released on 1993 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Une étude expérimentale sur l'écoulement turbulent décollé et recollé au passage d'une marche descendante est réalisée. Cette étude est destinée à produire des mesures de référence sur la structure turbulente de ce type de l'écoulement, en particulier dans les cas de la paroi rugueuse et de l'écoulement incident du type jet pariétal qui n'avaient pas encore été étudiés expérimentalement. Les expériences sont développées pour comprendre les effets des rugosités de la paroi (nikuradse) et de la turbulence extérieure dans la zone de recirculation et de recollement. Les expériences préliminaires sont réalisées en faisant des mesures qualitatives (visualisation laser) et quantitatives (fil chaud simple) dans une petite soufflerie a jet pariétal, et les expériences finales sont réalisées en faisant des mesures utilisant deux fils chauds parallèles dans une grande soufflerie a couche limite. Les mesures portent sur les vitesses moyennes longitudinales et les fluctuations de vitesses longitudinales. La définition géométrique des expériences correspond à la proposition de la conférence de Stanford (AFOSR, 1981). les mesures sont exploitées par trois méthodes: le lissage des gradients de vitesses moyennes près de paroi pour définir la longueur de recollement, les longueurs caractéristiques de la turbulence en coordonnées de Westphal pour analyser le comportement des grandes structures, la loi universelle logarithmique (couche limite) et l'affinité des profils de vitesses moyennes (jet pariétal) pour analyser la zone de recollement. L’analyse spectrale a été faite dans le cas de la couche limite sur paroi rugueuse. Les résultats de mesure dans la zone de recirculation sont validés par la visualisation. Les résultats de cette étude doivent contribuer a construire les modélisations et la simulation numérique de ce type d'écoulement

Download or read book Etude de l coulement en aval d une marche descendante confin e par diff rentes m thodes optiques quantitatives written by Grégory Croisier and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les écoulements décollés-recollés ont reçu une attention toute particulière car ils sont présents dans de nombreuses applications pratiques. Parmi eux, l'écoulement en aval d'une marche descendante a fait l'objet de nombreux travaux. Outre l'intérêt suscité par l'écoulement lui-même, il est encore un enjeu pour les méthodes numériques qui rencontrent des difficultés à prédire les grandeurs statistiques telles que la longueur de recollement. Il possède de plus une large gamme de vitesses et de fluctuations qui convient parfaitement à l'analyse des possibilités et des limitations des methodes expérimentales. On étudie dans le présent travail l'écoulement hydrodynamique en aval d'une marche descendante confinée en utilisant différentes méthodes optiques quantitatives. Les caractéristiques géométriques de la marche font que l'écoulement est uniforme en amont de celle-ci et tridimensionnel en aval. Cette étude expérimentale a deux objectifs : le premier est la caractérisation de l'écoulement en vue d'une comparaison avec des simulations numériques directes, le second est la mise en oeuvre de la vélocimétrie holographique. On se limite a deux nombres de Reynolds (basés sur la hauteur de marche) caractéristiques valant respectivement 5675 et 22230. Après quelques visualisations, on quantifie l'écoulement moyen par vélocimétrie laser à franges (vlf). On utilise la vélocimétrie par images de particules (piv) pour déterminer des cartes instantanées de vitesse et de vorticité. En réalisant un grand nombre de cartes instantanées de vitesse, on calcule des grandeurs statistiques moyennes et on les compare à celles obtenues par vlf. On analyse également des cartes de corrélation spatiale issue de la zone décollée. D'autre part, on adopte une approche holographique afin de mesurer les trois composantes de vitesse à un instant donné. Dans l'eau, on utilise un montage de Gabor dans deux directions orthogonales qui permet d'obtenir une information précise dans un volume. Dans l'air, on réalise un enregistrement holographique d'un cliché de piv afin d'en étudier la faisabilité. Cette dernière expérience est menée sur un jet en vue d'une application à l'écoulement qui nous concerne.

Download or read book ETUDE PAR SIMULATION DES GRANDES ECHELLES D UN ECOULEMENT DECOLLE written by FRANCK.. DELCAYRE and published by . This book was released on 1999 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'ECOULEMENT TURBULENT EN AVAL D'UNE MARCHE DESCENDANTE EST ETUDIE PAR SIMULATION NUMERIQUE DES GRANDES ECHELLES. UNE ETUDE PREALABLE SUR LA CARACTERISATION DES TOURBILLONS COHERENTS DANS DIVERS ECOULEMENTS ACADEMIQUES EST REALISEE. ELLE A CONCLU A LA SUPERIORITE DU CHAMP DU SECOND INVARIANT DU TENSEUR DES GRADIENTS DE VITESSE POUR ISOLER CES TOURBILLONS ET PERMETTRE AINSI UN MEILLEUR SUIVI DE LA DYNAMIQUE TOURBILLONNAIRE. LA PARTIE IMPORTANTE DE CET OUVRAGE EST CONSACREE A L'ETUDE DE LA MARCHE DESCENDANTE. UNE REVUE DES PRINCIPALES ETUDES REALISEES NOUS A PERMIS DE CHOISIR UNE CONFIGURATION BIEN DOCUMENTEE EN DONNEES STATISTIQUES AFIN DE VALIDER LE CALCUL REALISE. CETTE VALIDATION AYANT ETE EFFECTUEE, NOTRE INTERET S'EST PORTE ENSUITE SUR LES SPECIFICITES DES ECOULEMENTS DECOLLES QUE L'ON RETROUVE DANS DES COMPORTEMENTS ATYPIQUES DE CERTAINES GRANDEURS MOYENNES. L'EXAMEN DES TOURBILLONS COHERENTS A FAIT L'OBJET D'UNE ATTENTION PARTICULIERE. LE COMPORTEMENT DE TOURBILLONS DE KELVIN-HELMHOLTZ A ETE MIS EN PARALLELE AVEC CELUI OBSERVE DANS LES COUCHES DE MELANGES PLANES AVEC ALTERNANCE DE TROIS REGIMES D'APPARIEMENTS DISTINCTS. DE PLUS, LA GENERATION DE TOURBILLONS EN FORME DE A PU ETRE MISE EN LUMIERE. CES TOURBILLONS, GENERES JUSTE EN AVAL DE LA MARCHE, SE REFLECHISSENT SUR LA PAROI INFERIEURE, ET SONT TRANSPORTES VERS L'AVAL TEMOIGNANT DE LA PERSISTANCE DE STRUCTURES DE GRANDE ECHELLE EN AVAL DU RATTACHEMENT. FINALEMENT, TROIS FREQUENCES DOMINANTES ONT PU ETRE CARACTERISEES ET CORRESPONDENT AUX MODES FONDAMENTAL, SOUS-HARMONIQUE ET DE BATTEMENT.

Download or read book Singing Poets written by Dimitris Papanikolaou and published by MHRA. This book was released on 2007 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book shows how the model of singing poets becomes then an organizing principle for a system of national popular music. It responds to the growing call for the teaching of the textual networks of popular music within the domains of literary and cultural studies.

Download or read book Imagining Contagion in Early Modern Europe written by Claire L. Carlin and published by Springer. This book was released on 2005-10-14 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ideological underpinnings of early modern theories of contagion are dissected in this volume by an integrated team of literary scholars, cultural historians, historians of medicine and art historians. Even today, the spread of disease inspires moralizing discourse and the ostracism of groups thought responsible for contagion; the fear of illness and the desire to make sense of it are demonstrated in the current preoccupation with HIV, SARS, 'mad cow' disease, West Nile virus and avian flu, to cite but a few contemporary examples. Imagining Contagion in Early Modern Europe explores the nature of understanding when humanity is faced with threats to its well-being, if not to its very survival.

Download or read book Simon Denny written by Simon Denny and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Simon Denny's new body of work for Portikus ranks among the most ambitious the artist has developed to date. Over the period of one year, the artist researched and developed an intricate project that has grown to considerable dimensions -- both physically and in terms of its critical content. For two months, the monumental gallery space is turned into an homage to technology, communication, and the relentless need for innovation. Simon Denny has produced an embracing and multi-faceted installation that functions as a documentary of the South Korean technology giant Samsung and its global success story. The exhibition's title, "New Management", refers to the legendary management philosophy that Lee Kun-hee, Chairman of the Samsung Group, infamously introduced in the early nineties."--Publisher's website.

Download or read book From Antiquities to Heritage written by Anne Eriksen and published by Berghahn Books. This book was released on 2014-05-01 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eighteenth-century gentleman scholars collected antiquities. Nineteenth-century nation states built museums to preserve their historical monuments. In the present world, heritage is a global concern as well as an issue of identity politics. What does it mean when runic stones or medieval churches are transformed from antiquities to monuments to heritage sites? This book argues that the transformations concern more than words alone: They reflect fundamental changes in the way we experience the past, and the way historical objects are assigned meaning and value in the present. This book presents a series of cases from Norwegian culture to explore how historical objects and sites have changed in meaning over time. It contributes to the contemporary debates over collective memory and cultural heritage as well to our knowledge about early modern antiquarianism.

Download or read book The Heidegger Change written by Catherine Malabou and published by SUNY Press. This book was released on 2011-12-01 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: Elaborates the author’s conception of plasticity by proposing a new way of thinking through Heidegger’s writings on change.

Download or read book Existential Monday written by Benjamin Fondane and published by New York Review of Books. This book was released on 2016-05-17 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: Benjamin Fondane—who was born and educated in Romania, moved as an adult to Paris, lived for a time in Buenos Aires, where he was close to Victoria Ocampo, Jorge Luis Borges’s friend and publisher, and died in Auschwitz—was an artist and thinker who found in every limit, in every border, “a torture and a spur.” Poet, critic, man of the theater, movie director, Fondane was the most daring of the existentialists, a metaphysical anarchist, affirming individual against those great abstractions that limit human freedom—the State, History, the Law, the Idea. Existential Monday, the first selection of his philosophical work to appear in English, includes four of Fondane's most thought-provoking and important texts, "Existential Monday and the Sunday of History," "Preface for the Present Moment," "Man Before History" (co-translated by Andrew Rubens), and "Boredom." Here Fondane, until now little-known except to specialists, emerges as one of the enduring French philosophers of the twentieth century.

Download or read book In the Flow written by Boris Groys and published by Verso Books. This book was released on 2016-02-16 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the early 20th century, art and its institutions came under critique from a new democratic and egalitarian spirit. In an age of secularism and materialism, artworks would be understood as merely things among other things. This meant an attack on the techniques of realism, and the traditional mission of the museum, both designed shield a small class of objects from the entropic fate awaiting everything else-and the development of an approach that Boris Groys calls "direct realism": an art that would not produce objects, but practices that could enter the flow of time to live and die like the rest of us. But for more than a century now, every advance in this direction has been quickly followed by new means of preserving art's distinction. In this major new work, Groys, one of the world's leading art theorists, charts the paradoxes produced by this tension, which continues to structure the production and reception of new art. The internet, the latest medium through which artists have attempted to disavow this special status, inverts the most notorious consequence of early modernist developments. If the techniques of mechanical reproduction gave us objects without aura, digital production generates aura without objects, transforming all its materials into vanishing markers of the transitory present.

Download or read book Cinepoems and Others written by Benjamin Fondane and published by New York Review of Books. This book was released on 2016-05-17 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Benjamin Fondane was that rarest of poets: an experimental formalist with a powerful lyric poetic voice; a renegade surrealist who was also a highly original existential philosopher; a self-consciously Jewish poet of diaspora and loss, whose last manuscripts made it out of Drancy in 1944 just before his deportation to Auschwitz-Birkenau, where he was murdered, yet whose poetry speaks of an overflowing plenitude. This bilingual selection is the first volume of Fondane’s poetry to appear in English, and it includes a broad sample of his work, from the coruscating and comic cinepoems of his surrealist years, to philosophical meditations, to poems that in their secular and mystical Judaism confront the historical calamity—and imaginative triumph—of European Jewry.

Download or read book Wim Delvoye written by Wim Delvoye and published by Rectapublishers. This book was released on 2001 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Borrowing its name from the ancient sewer in Rome, Belgian conceptualist Wim Delvoye's new and improved "Cloaca" is a room-sized shit-making machine whose bowels process two meals a day, serving up a mouthful of complex themes: scatalogy and disgust, high and low culture, man as machine and vice-versa, and the inversion of art semiotics. Many of these same concerns are processed in Delvoye's other work, like the life-sized carved walnut replica of a cement truck, the wood cabinet stocked with 32 circular saw blades painted with scenes in Delft China blue, and a herd of pigs tatooed by Antwerp's finest needle-men. Feces and other anal subjects are parsed in accompanying essays by such luminaries as Milan Kundera, Gerardo Mosquera, Dan Cameron, Georges Bataille and Salvador Dali.

Download or read book Saharan Frontiers written by James McDougall and published by Indiana University Press. This book was released on 2012-06-08 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Sahara has long been portrayed as a barrier that divides the Mediterranean world from Africa proper and isolates the countries of the Maghrib from their southern and eastern neighbors. Rather than viewing the desert as an isolating barrier, this volume takes up historian Fernand Braudel's description of the Sahara as "the second face of the Mediterranean." The essays recast the history of the region with the Sahara at its center, uncovering a story of densely interdependent networks that span the desert's vast expanse. They explore the relationship between the desert's "islands" and "shores" and the connections and commonalities that unite the region. Contributors draw on extensive ethnographic and historical research to address topics such as trade and migration; local notions of place, territoriality, and movement; Saharan cities; and the links among ecological, regional, and world-historical approaches to understanding the Sahara.

Download or read book Sublime Poussin written by Louis Marin and published by Stanford University Press. This book was released on 1999 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: The eminent scholar and critic Louis Marin considered the paintings and the writings of Nicolas Poussin (1594-1665) an enduring source of inspiration, and he returned to Poussin again and again over the years. The ten major essays in this volume constitute his definitive statement on the painter who inspired his most eloquent and probing commentary. 17 illustrations.

Download or read book Psychoanalysis and Projective Methods in Personality Assessment written by Benoît Verdon and published by Hogrefe Publishing. This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Unique synthesis from the French School of psychoanalytical projective methods This unique book synthesizes the work of leading thinkers of the French School of psychoanalytical projective methods in personality assessment. The French School is a direct successor to Rorschach's and Murray's original approaches using the Rorschach Test and the Thematic Apperception Test (TAT). Underlying this method is the idea of the coexistence of conscious and unconscious processes, of opposite instinctual pairs, and of agents that are ruled by conflicts (Freud). Transitional activity is seen as part of an intermediate space, a mediator space, and bearer of messages between the subject and the clinician (Winnicott). This book brings to life the important contributions of the French School, firstly exploring its theories and methods and then its clinical applications. Detailed case studies from different stages of life examine the psychopathology of everyday life with its severe and disabling states of suffering. Contemporary advances in research and clinical work are presented, and the groundbreaking early work of Nina Rausch de Traubenberg, Vica Shentoub, and Rosine Debray are also critically reread and discussed. Clinical tools adapted for clinicians and researchers in the appendices include a useful schema to facilitate the interpretation of the Rorschach and TAT together, a list of latent solicitations for the TAT, and the current version of the TAT Scoring Grid. This book is essential reading for clinical psychologists, psychiatrists, psychotherapists, researchers, and students interested in applying psychoanalytical theory to projective methods"--

Download or read book Internet Dreams written by Mark Stefik and published by MIT Press. This book was released on 1997 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internet Dreams illuminates not only how "the Net" is being created, but also stories about ourselves as our lives become electronically interconnected. Stefik explores some of the most provocative writings about the Internet to tease out the deeper metaphors and myths. 24 illustrations.