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Contribution A Letude De La Transmission Des Ultrasons A Une Interface Solide Gaz Liquide
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Book Synopsis Contribution à l'étude de la transmission des ultrasons à une interface solide - gaz - liquide by : Kevin Paumel
Download or read book Contribution à l'étude de la transmission des ultrasons à une interface solide - gaz - liquide written by Kevin Paumel and published by . This book was released on 2008 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans le cadre de l'inspection ultrasonore des réacteurs au sodium, l’objectif est d’étudier les conditions d’apparition d’un très mauvais couplage acoustique du traducteur avec le sodium liquide. Le non mouillage de la surface du traducteur par le sodium peut provoquer le piégeage de poches de gaz dans la rugosité. Une première analyse quasi-statique permet d'étudier la stabilité de ces poches de gaz vis-à-vis de la température, de la pression hydrostatique, du niveau de saturation en gaz dissous dans le liquide. Afin de mener une étude paramétrique en fonction de la taille et la fraction surfacique des poches de gaz, plusieurs échantillons sont réalisés. Une expérience ultrasonore en eau, utilisant différentes fréquences, permet de mesurer la transmission à travers ces échantillons. Parallèlement, divers modèles décrivant la configuration expérimentale sont proposés, le dernier étant basé sur une description du comportement dynamique d’une poche de gaz de géométrie simple. La comparaison des résultats expérimentaux et analytiques (du dernier modèle) montrent une évolution similaire de la transmission en fonction des différents paramètres.
Book Synopsis Contribution à l'étude de la propagation des ultrasons à une interface liquide-solide composite by : Cécile Lesueur
Download or read book Contribution à l'étude de la propagation des ultrasons à une interface liquide-solide composite written by Cécile Lesueur and published by . This book was released on 2004 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'objectif est d'étudier l'influence, sur la propagation des ultrasons à travers une interface liquide-solide, de la présence à cette interface de cavités non remplies de liquide (interface composite). Le cas des ondes de compression en incidence normale est considéré. L'interface entre le plomb liquide et des substrats modèles en silicium "rugueux" est d'abord étudiée. La nature composite de l'interface liquide-solide est caractérisée par des expériences de mouillage à l'aide de la méthode de pont liquide. Une étude bibliographique permet de proposer un modèle simplifié de la transmission des ondes ultrasonores lorsque l'interface composite est considérée comme un réseau de défauts coplanaires. Une simulation de la propagation des ondes dans des pièces en acier à l'aide d'un code de calcul en éléments finis permet d'étudier le comportement des ultrasons à travers un réseau de créneaux. La partie expérimentale valide les résultats du modèle simplifié et des simulations pour une interface non composite. Lorsque l'interface est composite, la transmission de l'onde chute brutalement. L'origine de cette chute pourrait être la croissance puis la coalescence des poches de phase vapeur présentes à l'interface composite
Book Synopsis Contribution à l'étude expérimentale des écoulements gazeux rapides par les méthodes de perturbation by : Geneviève Dubois
Download or read book Contribution à l'étude expérimentale des écoulements gazeux rapides par les méthodes de perturbation written by Geneviève Dubois and published by . This book was released on 1952 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Contribution à l'étude d'ondes de surface ultrasonores by : Alain Faure
Download or read book Contribution à l'étude d'ondes de surface ultrasonores written by Alain Faure and published by . This book was released on 1976 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Contribution à l'étude des ultrasons by : Robert Mercier
Download or read book Contribution à l'étude des ultrasons written by Robert Mercier and published by . This book was released on 1949 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Contribution à l?étude des ultrasons by : Robert Mercier (Physicist, Switzerland)
Download or read book Contribution à l?étude des ultrasons written by Robert Mercier (Physicist, Switzerland) and published by . This book was released on 1949 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Contribution à l'étude de la propagation des ultrasons dans les bétons by : Alain Durand (auteur d'une thèse de sciences.)
Download or read book Contribution à l'étude de la propagation des ultrasons dans les bétons written by Alain Durand (auteur d'une thèse de sciences.) and published by . This book was released on 1981 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Contribution à l'étude des ultrasons by : Robert Mercier (Ingénieur.)
Download or read book Contribution à l'étude des ultrasons written by Robert Mercier (Ingénieur.) and published by . This book was released on 1949 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book L'Industrie Céramique written by and published by . This book was released on 1958 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bulletin de documentation, nos. 96-172, included in 1964-1970 volumes.
Download or read book Properties of UO2 written by J. Belle and published by . This book was released on 1957 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dictionary of Building and Civil Engineering by : Don Montague
Download or read book Dictionary of Building and Civil Engineering written by Don Montague and published by Taylor & Francis. This book was released on 1996 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.
Book Synopsis Gas-cooled Nuclear Reactors by : France. Commissariat à l'énergie atomique
Download or read book Gas-cooled Nuclear Reactors written by France. Commissariat à l'énergie atomique and published by . This book was released on 2006 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis From Microphysics to Macrophysics by : Roger Balian
Download or read book From Microphysics to Macrophysics written by Roger Balian and published by Springer Science & Business Media. This book was released on 2007-06-26 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: This popular, often cited text returns in a softcover edition to provide a thorough introduction to statistical physics and thermodynamics, and to exhibit the universal chain of ideas leading from the laws of microphysics to the macroscopic behaviour of matter. A wide range of applications illustrates the concepts, and many exercises reinforce understanding. Volume II applies statistical methods to systems governed by quantum effects, in particular to solid state physics, explaining properties due to the crystal structure or to the lattice excitations or to the electrons. The last chapters are devoted to non-equilibrium processes and to kinetic equations, with many applications included.
Book Synopsis Constructive Drinking by : Mary Douglas
Download or read book Constructive Drinking written by Mary Douglas and published by Routledge. This book was released on 2013-10-16 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1987, Constructive Drinking is a series of original case studies organized into three sections based on three major functions of drinking. The three constructive functions are: that drinking has a real social role in everyday life; that drinking can be used to construct an ideal world; and that drinking is a significant economic activity. The case studies deal with a variety of exotic drinks
Book Synopsis Four Laws That Drive the Universe by : Peter Atkins
Download or read book Four Laws That Drive the Universe written by Peter Atkins and published by OUP Oxford. This book was released on 2007-09-06 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: The laws of thermodynamics drive everything that happens in the universe. From the sudden expansion of a cloud of gas to the cooling of hot metal, and from the unfurling of a leaf to the course of life itself - everything is directed and constrained by four simple laws. They establish fundamental concepts such as temperature and heat, and reveal the arrow of time and even the nature of energy itself. Peter Atkins' powerful and compelling introduction explains what the laws are and how they work, using accessible language and virtually no mathematics. Guiding the reader from the Zeroth Law to the Third Law, he introduces the fascinating concept of entropy, and how it not only explains why your desk tends to get messier, but also how its unstoppable rise constitutes the engine of the universe.
Book Synopsis FeHEDTA by : Canada. Pest Management Regulatory Agency
Download or read book FeHEDTA written by Canada. Pest Management Regulatory Agency and published by . This book was released on 2010 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: Health Canada's Pest Management Regulatory Agency (PMRA), under the authority of the Pest Control Products Act and Regulations, is proposing full registration for the sale and use of NEU1173H TGAI and the end-use products; NEU1173H RTU with Pull'N Spray Applicator, NEU1173H RTU with Quick Connect Sprayer, NEU1173H RTU, Fiesta Lawn Weed Killer Ready to Spray, Fiesta Lawn Weed Killer, NEU1173H Ready to Spray Large Size, NEU1173H Ready to Spray, NEU1173H Large Size, and NEU1173H, containing the technical grade active ingredient iron present as FeHEDTA (herein referred to as FeHEDTA), to control several broadleaved weed species that commonly occur in turf. This document summarizes PMRA's evaluation. The Overview describes the key points of the evaluation, while the Science Evaluation provides detailed technical information on the human health, environmental and value assessments of NEU1173H TGAI and the end-use products. Before making a final registration decision on FeHEDTA, the PMRA will consider all comments received from the public in response to this consultation document.--Includes text from document.
Author :International Atomic Energy Agency Publisher :International Atomic Energy Agency ISBN 13 :9789201063205 Total Pages :72 pages Book Rating :4.0/5 (632 download)
Book Synopsis In-Vessel Melt Retention and Ex-Vessel Corium Cooling: IAEA Tecdoc No. 1906 by : International Atomic Energy Agency
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.
