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Author: Philippe Alexandre Publisher: ISBN: Category : Languages : fr Pages : 216
Book Description
CE TRAVAIL PRESENTE LA MODELISATION DU PHENOMENE DE CHARRIAGE EN TORRENTS D'UN POINT DE VUE THEORIQUE, EXPERIMENTAL ET NUMERIQUE. UN MODELE DIPHASIQUE DE SAINT-VENANT DECRIVANT LE TRANSPORT SOLIDE PAR CHARRIAGE EST PRESENTE. AUX EQUATIONS DE L'HYDRAULIQUE A SURFACE LIBRE, ON COUPLE UN SYSTEME D'EQUATIONS SIMILAIRE REGISSANT LA PHASE GRANULAIRE, DEVELOPPE EN VARIABLES VITESSE-CONCENTRATION GRANULAIRE, A PARTIR DES PRINCIPES DE CONSERVATION ET DES TRANSFERTS DE MASSE ET D'ENERGIE ENTRE LE LIT ET LE FLUIDE. LA FORMATION DES STRUCTURES MORPHOLOGIQUES DE TYPE BANCS ALTERNES EST CONSIDERE ICI COMME UN PHENOMENE D'INSTABILITE INDUIT PAR L'INTERACTION LIT-ECOULEMENT. UNE ANALYSE DE STABILITE LINEAIRE S'APPUYANT SUR UN MODELE DE TRANSPORT SOLIDE PSEUDO-INSTATIONNAIRE (COUPLANT L'HYDRAULIQUE A UNE EQUATION D'EVOLUTION DU LIT) EST ALORS COMPAREE A DES EXPERIENCES SUR MODELES REDUITS ET PERMET DE DETERMINER LES CRITERES PHYSIQUES CARACTERISANT LE PHENOMENE DE MEANDREMENT. DEUX MODELES NUMERIQUES DE TRANSPORT SOLIDE 1D ET 2D SONT DEVELOPPES EN DIFFERENCES FINIES. LE MODELE 1D EST VALIDE SUR DIVERS CAS EXPERIMENTAUX : RUPTURES DE PENTE, RETRECISSEMENTS ET ELARGISSEMENTS DE CANAUX. LE MODELE 2D CONTIENT NOTAMMENT UNE FORMULATION ORIGINALE DES EQUATIONS DE L'HYDRAULIQUE A SURFACE LIBRE EN REGIME PERMANENT, BASEE SUR L'EXISTENCE D'UNE FONCTION DE COURANT QUI VERIFIE PAR DEFINITION L'EQUATION DE CONSERVATION DE LA MASSE. UNE METHODE NUMERIQUE REPOSANT SUR CETTE FORMULATION EST PROPOSEE ET FOURNIT DES RESULTATS TRES SATISFAISANTS. SON COUPLAGE AVEC L'EQUATION DE TRANSPORT SOLIDE 2D CONDUIT NUMERIQUEMENT A UNE DESTABILISATION DU LIT ET A LA FORMATION DE BANCS ALTERNES DANS UN CAS SIMPLIFIE.
Author: Philippe Alexandre Publisher: ISBN: Category : Languages : fr Pages : 216
Book Description
CE TRAVAIL PRESENTE LA MODELISATION DU PHENOMENE DE CHARRIAGE EN TORRENTS D'UN POINT DE VUE THEORIQUE, EXPERIMENTAL ET NUMERIQUE. UN MODELE DIPHASIQUE DE SAINT-VENANT DECRIVANT LE TRANSPORT SOLIDE PAR CHARRIAGE EST PRESENTE. AUX EQUATIONS DE L'HYDRAULIQUE A SURFACE LIBRE, ON COUPLE UN SYSTEME D'EQUATIONS SIMILAIRE REGISSANT LA PHASE GRANULAIRE, DEVELOPPE EN VARIABLES VITESSE-CONCENTRATION GRANULAIRE, A PARTIR DES PRINCIPES DE CONSERVATION ET DES TRANSFERTS DE MASSE ET D'ENERGIE ENTRE LE LIT ET LE FLUIDE. LA FORMATION DES STRUCTURES MORPHOLOGIQUES DE TYPE BANCS ALTERNES EST CONSIDERE ICI COMME UN PHENOMENE D'INSTABILITE INDUIT PAR L'INTERACTION LIT-ECOULEMENT. UNE ANALYSE DE STABILITE LINEAIRE S'APPUYANT SUR UN MODELE DE TRANSPORT SOLIDE PSEUDO-INSTATIONNAIRE (COUPLANT L'HYDRAULIQUE A UNE EQUATION D'EVOLUTION DU LIT) EST ALORS COMPAREE A DES EXPERIENCES SUR MODELES REDUITS ET PERMET DE DETERMINER LES CRITERES PHYSIQUES CARACTERISANT LE PHENOMENE DE MEANDREMENT. DEUX MODELES NUMERIQUES DE TRANSPORT SOLIDE 1D ET 2D SONT DEVELOPPES EN DIFFERENCES FINIES. LE MODELE 1D EST VALIDE SUR DIVERS CAS EXPERIMENTAUX : RUPTURES DE PENTE, RETRECISSEMENTS ET ELARGISSEMENTS DE CANAUX. LE MODELE 2D CONTIENT NOTAMMENT UNE FORMULATION ORIGINALE DES EQUATIONS DE L'HYDRAULIQUE A SURFACE LIBRE EN REGIME PERMANENT, BASEE SUR L'EXISTENCE D'UNE FONCTION DE COURANT QUI VERIFIE PAR DEFINITION L'EQUATION DE CONSERVATION DE LA MASSE. UNE METHODE NUMERIQUE REPOSANT SUR CETTE FORMULATION EST PROPOSEE ET FOURNIT DES RESULTATS TRES SATISFAISANTS. SON COUPLAGE AVEC L'EQUATION DE TRANSPORT SOLIDE 2D CONDUIT NUMERIQUEMENT A UNE DESTABILISATION DU LIT ET A LA FORMATION DE BANCS ALTERNES DANS UN CAS SIMPLIFIE.
Author: Kolumban Hutter Publisher: Springer Science & Business Media ISBN: 9783540008491 Category : Technology & Engineering Languages : en Pages : 448
Book Description
A "Sonderforschungsbereich" (SFB) is a programme of the "Deutsche For schungsgemeinschaft" to financially support a concentrated research effort of a number of scientists located principally at one University, Research La boratory or a number of these situated in close proximity to one another so that active interaction among individual scientists is easily possible. Such SFB are devoted to a topic, in our case "Deformation and Failure in Metallic and Granular M aterialK' , and financing is based on a peer reviewed proposal for three (now four) years with the intention of several prolongations after evaluation of intermediate progress and continuation reports. An SFB is terminated in general by a formal workshop, in which the state of the art of the achieved results is presented in oral or I and poster communications to which also guests are invited with whom the individual project investigators may have collaborated. Moreover, a research report in book form is produced in which a number of articles from these lectures are selected and collected, which present those research results that withstood a rigorous reviewing pro cess (with generally two or three referees). The theme deformation and failure of materials is presented here in two volumes of the Lecture Notes in Applied and Computational Mechanics by Springer Verlag, and the present volume is devoted to granular and porous continua. The complementary volume (Lecture Notes in Applied and Com putational Mechanics, vol. 10, Eds. K. HUTTER & H.
Author: Sven Boermeester Publisher: ISBN: 9781949677072 Category : Languages : en Pages :
Book Description
Innovate Bristol highlights and celebrates those companies and individuals that are actively working at building a better tomorrow for all. Innovation Ecosystems thrive through the involvement and support of companies and individuals from all industries, which is why the Innovate series not only focuses on the innovators but also those people whom the Innovation Ecosystem, would not be able to thrive without.
Author: Bruno Voituriez Publisher: UNESCO ISBN: Category : Science Languages : en Pages : 132
Book Description
El Nino, caprice of the heavens, scapegoat for every calamity? The general public cannot really understand what is behind the El Nino phenomenon. The book offers a tour of the Earth's climate to understand one of its normal but extreme components.
Author: Hermann Schlichting (Deceased) Publisher: Springer ISBN: 366252919X Category : Technology & Engineering Languages : en Pages : 814
Book Description
This new edition of the near-legendary textbook by Schlichting and revised by Gersten presents a comprehensive overview of boundary-layer theory and its application to all areas of fluid mechanics, with particular emphasis on the flow past bodies (e.g. aircraft aerodynamics). The new edition features an updated reference list and over 100 additional changes throughout the book, reflecting the latest advances on the subject.
Author: M. Albu Publisher: Springer Science & Business Media ISBN: 9401158460 Category : Science Languages : en Pages : 460
Book Description
Is it not generally believed that our town is a healthy place . . . a place highly com mended on this score both for the sick andfor the healthy? . . And then these Baths - the so-called 'artery' of the town, or the 'nerve centre' . . . Do you know what they are in reality, these great and splendid and glorious Baths that have cost so much money? . . A most serious danger to health! All that filth up in Melledal, where there's such an awful stench - it's all seeping into the pipes that lead to the pump-room! Henrik Ibsen, An Enemy of the People, 1882 Henrik Ibsen gave the 'truth about mineral water' more than 100 years ago in An Enemy of the People. His examples came not from the decadent bathing spas of Bohemia or Victorian Britain, but from the very edge of polite society, subarctic Norway! His masterpiece illustrates the central role that groundwaters and, in particular, mineral waters have played in the history of humanity: their economic importance for towns, their magnetism for pilgrims searching for cures, the political intrigues, the arguments over purported beneficent or maleficent health effects and, finally, their contami nation by anthropogenic activity, in Ibsen's case by wastes from a tannery. This book addresses the occurrence, properties and uses of mineral and thermal groundwaters. The use of these resources for heating, personal hygiene, curative and recreational purposes is deeply integrated in the history of civilization.
Author: Christopher Gill Publisher: OUP Oxford ISBN: 0191502421 Category : Philosophy Languages : en Pages : 308
Book Description
Christopher Gill provides a new translation and commentary on the first half of Marcus Aurelius' Meditations, and a full introduction to the Meditations as a whole. The Meditations constitute a unique and remarkable work, a reflective diary or notebook by a Roman emperor, that is based on Stoic philosophy but presented in a highly distinctive way. Gill focuses on the philosophical content of the work, especially the question of how far it is consistent with Stoic theory as we know this from other sources. He argues that the Meditations are largely consistent with Stoic theory—more than has been often supposed. The work draws closely on core themes in Stoic ethics and also reflects Stoic thinking on the links between ethics and psychology or the study of nature. To make sense of the Meditations, it is crucial to take into account its overall aim, which seems to be to help Marcus himself take forward his own ethical development by creating occasions for reflection on key Stoic themes that can help to guide his life. This new edition will help students and scholars of ancient philosophy make sense of a work whose intellectual content and status have often been found puzzling. Along with volumes in the Clarendon Later Ancient Philosophers series on Epictetus and Seneca, it will help to chart the history of Stoic philosophy in the first and second century AD. The translation is designed to be accessible to modern readers and all Greek and Latin are translated in the introduction and commentary.
Author: C. R. Thorne Publisher: ISBN: Category : Science Languages : en Pages : 1038
Book Description
Describes and quantifies the movement and storage of sediment in rivers with gravel-bed material, based upon scientific and engineering principles. Papers based on theory and experiment are interspersed with case studies. Until recently, gravel-bed rivers have been under-researched, when compared with sand-bed rivers. There is a heightened interest in these rivers now, due to pressure from water resources, forestry and recreational development in upland areas.
Author: Martin Lindstrom Publisher: Currency ISBN: 0385523890 Category : Business & Economics Languages : en Pages : 274
Book Description
NEW YORK TIMES BESTSELLER • “A fascinating look at how consumers perceive logos, ads, commercials, brands, and products.”—Time How much do we know about why we buy? What truly influences our decisions in today’s message-cluttered world? In Buyology, Martin Lindstrom presents the astonishing findings from his groundbreaking three-year, seven-million-dollar neuromarketing study—a cutting-edge experiment that peered inside the brains of 2,000 volunteers from all around the world as they encountered various ads, logos, commercials, brands, and products. His startling results shatter much of what we have long believed about what captures our interest—and drives us to buy. Among the questions he explores: • Does sex actually sell? • Does subliminal advertising still surround us? • Can “cool” brands trigger our mating instincts? • Can our other senses—smell, touch, and sound—be aroused when we see a product? Buyology is a fascinating and shocking journey into the mind of today's consumer that will captivate anyone who's been seduced—or turned off—by marketers' relentless attempts to win our loyalty, our money, and our minds.
Author: Gary J. Brierley Publisher: John Wiley & Sons ISBN: 111868530X Category : Science Languages : en Pages : 424
Book Description
This book outlines a generic set of procedures, termed the River Styles Framework, which provides a set of tools for interpreting river character, behavior, condition, and recovery potential. Applications of the framework generate a coherent package of geomorphic information, providing a physical template for river rehabilitation activities. management and restoration of rivers is a rapidly growing topic for environmental scientists, geologists and ecologists - this book provides a learning tool with which to approach geomorphic applications to river management describes the essential geomorphological principles underlying river behaviour and evolution demonstrates how the River Styles Framework can turn geomorphic theory into practice, to develop workable strategies for restoration and management based on real case studies and authors extensive experience applicable to river systems worldwide synthesises fluvial geomorphology, ecology and management
Author: Philippe Alexandre
Author: Philippe Alexandre
Author: Kolumban Hutter
Author: Sven Boermeester
Author: Bruno Voituriez
Author: Hermann Schlichting (Deceased)
Author: M. Albu
Author: Christopher Gill
Author: C. R. Thorne
Author: Martin Lindstrom
Author: Gary J. Brierley