Contribution to Study of Visible Discharge Initiation and Development on the Ice Surface, Contribution À L'étude de L'apparition Et Du Développement Des Décharges Visibles À la Surface de la Glace PDF Download
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Languages : en
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Author:
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Languages : en
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Author: Stephan Brettschneider
Publisher:
ISBN: 9781412300056
Category : Electric discharges
Languages : en
Pages : 534
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Author: François Nzokou Tanekou
Publisher:
ISBN:
Category :
Languages : en
Pages : 280
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Le bris d'un barrage est un événement exceptionnel et rare. Toutefois, lorsqu'il se produit, il peut engendrer de nombreuses pertes aussi bien matérielles qu'humaines. La modélisation de la propagation d'ondes de crue intumescentes issues d'un bris de barrage a fait l'objet d'inombrables études durant les quarante dernières années. À ce jour, il existe de nombreux modèles commerciaux capables de prédire avec satisfaction la propagation d'une onde de crue dans un canal à surface libre. Cependant, ces modèles ne sont pas conçus pour décrire la propagation dynamique des ondes de crue dans le cas des conditions hivernales caractérisées par la présence d'un couvert de glace à la surface des rivières. Pour les analyses de sécurité ou les études d'impact, les gestionnaires d'ouvrages de retenues et d'autres aussi qui s'intéressent aux écoulements fluviaux ont donc besoin de nouveaux outils de prédiction mieux adaptés à ces conditions particulières. Cette thèse se situe dans le cadre des efforts menés actuellement pour palier ce manque. L'objectif spécifique de la présente recherche est d'étudier la propagation des ondes hydrodynamiques dans un canal recouvert d'un couvert de glace. Pour y arriver, l'analyse s'est faite en deux parties. Premièrement, une analyse statique de la réponse du couvert de glace aux vagues de différentes formes est présentée. Cette dernière, faite à l'aide de modèles numériques uni- et bi-dimendionnels, a pour but de formuler des critères simples de bris du couvert de glace en rivière. Dans la seconde partie, un nouveau modèle numérique couplé eau-glace intitulé HYDROBEAM est bâti pour simuler la propagation dynamique des ondes dans un canal recouvert de glace. Pour ce nouveau modèle couplé, les équations de Saint-Venant, sous leurs formes conservatives et en présence d'un couvert flottant, sont reformulées. Les équations de Saint-Venant sont ensuite couplées aux équations décrivant le mouvement d'un couvert de glace semi-rigide. Les résultats du modèle couplé démontrent que la présence du couvert a pour effet d'atténuer et de ralentir les ondes et que l'effet se fait ressentir surtout sur des ondes très courtes (typiquement inférieures à 100 m).
Author: Zsolt Péter
Publisher:
ISBN: 9781412313513
Category : Electric lines
Languages : en
Pages : 686
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Author: Chitra Banerjee Divakaruni
Publisher: Simon and Schuster
ISBN: 1476792011
Category : Fiction
Languages : en
Pages : 240
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Book Description
"A new novel from the author of Oleander Girl, a novel in stories, built around crucial moments in the lives of 3 generations of women in an Indian/Indian-American Family"--
Author: Kaisa Kaukiainen
Publisher:
ISBN: 9789523590144
Category :
Languages : en
Pages : 544
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Book Description
The essays in this edited volume, written in English and French, tackle the intriguing problems of fear and safety by analysing their various meanings and manifestations in literature and other narrative media. The articles bring forth new, cross-cultural interpretations on fear and safety through examining what kinds of genre-specific means of world-making narratives use to express these two affectivities. The articles also show how important it is to study these themes in order to understand challenges in times of global threats, such as the climate crisis, and - to imagine a better future. The main themes of the book are approached from various theoretical perspectives as related to their literary and cultural representations. Recent trends in research, such as affect and risk theory, serve as the basis for the discussion. Many of the articles in the volume discuss apocalyptic and dystopian narratives that currently permeate the entire cultural landscape. Dystopian narratives do not only deal with future threats, such as totalitarianism, technocracy, or environmental disasters, but also suggest alternative ways of being and new hopes in the form of political resistance. The articles in the volume also draw from disciplines such as gender studies and trauma studies to examine the threats posed by collective fears and aggression on individuals' lives and propose ways of coping with fear. These themes are addressed also in articles analysing new adaptations of old myths that retell stories of the past.
Author: E. A. Hailwood
Publisher: Geological Society Publishing House
ISBN:
Category : Science
Languages : en
Pages : 450
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Author: tucson Symposium on the use of analog and digital computers in hydrology
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Category :
Languages : en
Pages :
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Author: Billy Meier
Publisher:
ISBN: 9781481132886
Category :
Languages : en
Pages : 274
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Book Description
The Billy Meier Contact Reports: Book 1This is Book 1 of the long desired series that will eventually contain all of the translated Contact Reports, including corrected versions of the translations done by Wendelle Stevens. The contact numbers will be listed on the cover of each volume, as is the case in the first edition above.This is the perfect way to have your own copies of this invaluable information.
Author: Reinhard Hennig
Publisher: Rowman & Littlefield
ISBN: 1498561918
Category : Literary Criticism
Languages : en
Pages : 259
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Book Description
Many contemporary environmental risks and global environmental changes occurring today are unprecedented in the history of human life on earth. However, the images and narratives through which humans relate to these phenomena are built on existing cultural tropes and narrative models. Cultural, social, and historical contexts strongly influence how we construct images and narratives of nature and the environment. It is therefore highly important to study such narratives in works of literature, film, and other forms of cultural expression in relation to the specific circumstances from which they arise. Nordic Narratives of Nature and the Environment is the first English language anthology that presents ecocritical research on northern European literatures and cultures. The contributors examine specifically Nordic narratives of nature and the environment, with a focus on the cultures and literatures of the modern northern European countries Denmark, Finland, Norway, and Sweden, including Sápmi, which is the land traditionally inhabited by the indigenous Sami people. Covering northern European literatures and cultures over a period of more than two centuries, this anthology provides substantial insights into both old and new narratives of nature and the environment as well as intertextual relations, the variety of cultural traditions, and current discourses connected to the Nordic environmental imagination. Case studies relating to works of literature, film, and other media shed new light on the role of culture, history and society in the formation of narratives of nature and the environment, and offer a comprehensive and multi-faceted overview of the most recent ecocritical research in Scandinavian studies.
