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Contribution A Letude Et A Linterpretation Des Processus Daimantation Des Ferromagnetiques
Download Contribution A Letude Et A Linterpretation Des Processus Daimantation Des Ferromagnetiques full books in PDF, epub, and Kindle. Read online Contribution A Letude Et A Linterpretation Des Processus Daimantation Des Ferromagnetiques ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Contribution à l'étude et à l'interprétation des processus d'aimantation des ferromagnétiques by : Jacques Guilmart
Download or read book Contribution à l'étude et à l'interprétation des processus d'aimantation des ferromagnétiques written by Jacques Guilmart and published by . This book was released on 1971 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bibliography of Magnetic Materials and Tabulation of Magnetic Transition Temperatures by : T. F. Connolly
Download or read book Bibliography of Magnetic Materials and Tabulation of Magnetic Transition Temperatures written by T. F. Connolly and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: This referenced compilation of magnetic transition temperatures represents (with the Addendum) papers actually received by the RMIC through May 1972 and consists of two lists (alphabetical by compounds), one for Curie and one for Neel temperatures. Where different values appeared in the literature for a single compound, all are listed with sepa rate references given for each. There is no attempt at critical evaluation, which, except for a few welt-studied and well characterized materials, would hardly be worth the effort. All that one can say for most of the compounds is that for a given material with a certain (or all too often uncertain) history of preparati'on and treatment, stoichiometry, homoge neity, and chemical or structural purity a magnetic transition was indicated at the temperature(s) listed. Only when the reasons for different values are explicitly stated in the literature do they appear as brief comments in the body of the lists. In order to include the most recent data, and to eliminate the delay involved in recomposition of the lists, an addendum is provided. While this requires the perusal of two lists rather than one, it does ensure that the compilation represents the entire RMIC collection at the moment of going to press. The 2478 references are restricted to those papers specifying a Curie or Neel temperature and do not reflect the complete magnetics literature even for the materials listed.
Book Synopsis CONTRIBUTION A L'ETUDE DE L'AIMANTATION IMPULSIONNELLE D'UN MATERIAU FERROMAGNETIQUE MASSIF by : MOKRANE.. SAADI
Download or read book CONTRIBUTION A L'ETUDE DE L'AIMANTATION IMPULSIONNELLE D'UN MATERIAU FERROMAGNETIQUE MASSIF written by MOKRANE.. SAADI and published by . This book was released on 1994 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE THESE PRESENTE UNE ETUDE THEORIQUE ET EXPERIMENTALE DE L'AIMANTATION D'UN MATERIAU FERROMAGNETIQUE CONDUCTEUR MASSIF, ET PLUS PARTICULIEREMENT L'AIMANTATION D'UN RAIL DE VOIE FERREE, EN VUE DE LA LOCALISATION DES TRAINS SUR CETTE VOIE. L'EXPERIMENTATION, SUR UNE MAQUETTE STATIQUE PUIS SUR UNE MAQUETTE SIMULANT LE DEFILEMENT RELATIF DU RAIL, NOUS A PERMIS, NOTAMMENT EN UTILISANT DEUX IMPULSIONS SUCCESSIVES DE CHAMP MAGNETIQUE POUR L'AIMANTATION, DE VALIDER EN LABORATOIRE LA POSSIBILITE D'UTILISER LE RAIL COMME SUPPORT MAGNETIQUE EN VUE DE CETTE LOCALISATION. AU POINT DE VUE THEORIQUE, UNE PREMIERE SIMULATION NUMERIQUE NOUS A PERMIS D'EVALUER APPROXIMATIVEMENT, DANS LE CAS D'UNE AIMANTATION LENTE, L'INDUCTION RESIDUELLE AUTOUR DE SPHERES OU DISQUES FERROMAGNETIQUES TRES PEU CONDUCTEURS PRESENTANT UNE HYSTERESIS. UNE SECONDE SIMULATION EFFECTUEE AU MOYEN D'UN LOGICIEL INDUSTRIEL D'ELEMENTS FINIS, NOUS A CONDUIT A PRECISER LE ROLE DES COURANTS INDUITS LORSQUE L'AIMANTATION EST RAPIDE. DANS CE CAS, CES COURANTS INDUITS CONDUISENT A LA FORMATION D'UNE BOUCLE DE LIGNES DE CHAMP QUI EST PIEGEE DEFINITIVEMENT DANS LA MASSE DU MATERIAU PAR SUITE DE L'HYSTERESIS. CE PHENOMENE A ETE MIS EN EVIDENCE PAR DES EXPERIENCES
Book Synopsis Contribution à l'étude de rubans ferromagnétiques nanocristallins by : Frédéric Mazaleyrat
Download or read book Contribution à l'étude de rubans ferromagnétiques nanocristallins written by Frédéric Mazaleyrat and published by . This book was released on 1996 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les matériaux ferromagnétiques nanocristallins dérives des verres métalliques sont apparus en 1988. Leurs propriétés magnétiques douces particulièrement intéressantes, perméabilité et induction a saturation élevées, faibles pertes electromagnetiques en moyenne fréquence, laissent présager leur prochaine apparition a grande échelle dans les domaines de l'électronique de puissance et de la compatibilité electromagnetique. A terme, la probable baisse de coût, liée a la simplicité de leur élaboration, devrait permettre a ces matériaux de supplanter toute une classe d'alliages fer-nickel, de matériaux amorphes et de ferrites doux. Pourtant, l'origine de leurs propriétés est assez mal connue. Apres une synthèse bibliographique et une introduction a la théorie du ferromagnétisme, nous étudierons certains phénomènes qui accompagnent le ferromagnétisme. Nous étudierons, ensuite, les couplages a l'aide d'un dispositif de mesures thermo-magnetiques original, permettant d'acquérir des cycles d'hystérésis a saturation jusqu'a plus de 600c. Nous proposons, sur cette base, une nouvelle méthode d'évaluation de la fraction cristallisee et nous montrons comment l'analyse thermo-magnetique conduit a une interprétation de l'origine des propriétés magnétiques des nanocristallins en termes d'évolution des couplages dans un système ferromagnétique biphase. Un modèle base sur la théorie semi-quantique est suggère pour la description de ces phénomènes. La mise en évidence d'une transition de couplage en dessous du point de curie de la matrice amorphe, pourrait indiquer une voie pour optimiser les propriétés magnétiques de ces matériaux
Book Synopsis Contribution a l'etude des interactions magneto-mecaniques dans les ferromagnetiques solides by : Mohand Arib
Download or read book Contribution a l'etude des interactions magneto-mecaniques dans les ferromagnetiques solides written by Mohand Arib and published by . This book was released on 1998 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce travail a pour objectif l'étude des interactions entre les phénomènes magnétiques et mécaniques au sein des matériaux ferromagnétiques solides utilisés dans la conception des dispositifs électromagnétiques. L'étude concerne à la fois les interactions intervenants au niveau des lois de conservation de la thermomécanique (via les efforts et l'énergie électromagnétique) et celles intervenants dans les lois de comportement magnéto-mécaniques a introduire (plus connues sous le vocable de magnétostriction). Le mémoire s'articule autour de deux grandes parties. Dans la première partie, on présente les principes généraux de l'interaction du champ électromagnétique avec la matière continue et déformable. Les principaux problèmes liés à l'expression des efforts et de l'énergie électromagnétique dans la matière polarisée et magnétisée, sont illustrés et discutés. Cela a permis de choisir une théorie électrodynamique permettant une formulation cohérente des efforts et de l'énergie électromagnétique. La seconde partie concerne la description des principaux aspects microstructuraux lies à la déformation et a l'aimantation macroscopique des matériaux ferromagnétiques. Un modèle de comportement magnéto-élastique a été développé. Il traduit l'existence et la nature des processus microstructuraux par trois schémas constitutifs : deux pour les phénomènes magnétiques et mécaniques réversibles et un troisième pour l'hystérésis magnétique. La prise en compte du modèle dans la résolution des équations de la mécanique des milieux continus a permis d'évaluer les déformations magnétostrictives globales ainsi que celles dues aux efforts magnétiques au sein d'un dispositif électromagnétique. Enfin, on présente un dispositif expérimentale permettant la mesure simultanée des déformations magnétostrictives et de l'aimantation d'un matériau en fonction du champ magnétique appliqué. Ce qui a permis la vérification de l'aspect prédictif du modèle.
Download or read book Journal de physique written by and published by . This book was released on 1974 with total page 1098 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pathophysiology of Renal Disease by : Eberhard Ritz
Download or read book Pathophysiology of Renal Disease written by Eberhard Ritz and published by . This book was released on 1980 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Magnetism and Accelerator-Based Light Sources by : Hervé Bulou
Download or read book Magnetism and Accelerator-Based Light Sources written by Hervé Bulou and published by Springer Nature. This book was released on 2021-02-17 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book collects the contributions of the seventh school on Magnetism and Synchrotron Radiation held in Mittelwihr, France, from 7 to 12 October 2018. It starts with an introduction to the physics of modern X-ray sources followed by a general overview of magnetism. Next, light / matter interaction in the X-ray range is covered with emphasis on different types of angular dependence of X-ray absorption spectroscopy and scattering. In the end, two domains where synchrotron radiation-based techniques led to new insights in condensed matter physics, namely spintronics and superconductivity, are discussed. The book is intended for advanced students and researchers to get acquaintance with the basic knowledge of X-ray light sources and to step into synchrotron-based techniques for magnetic studies in condensed matter physics or chemistry.
Book Synopsis Magnetism and Synchrotron Radiation by : Eric Beaurepaire
Download or read book Magnetism and Synchrotron Radiation written by Eric Beaurepaire and published by Springer Science & Business Media. This book was released on 2010-03-12 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in the synthesis of new materials with often complex, nano-scaled structures require increasingly sophisticated experimental techniques that can probe the electronic states, the atomic magnetic moments and the magnetic microstructures responsible for the properties of these materials. At the same time, progress in synchrotron radiation techniques has ensured that these light sources remain a key tool of investigation, e.g. synchrotron radiation sources of the third generation are able to support magnetic imaging on a sub-micrometer scale. With the Fifth Mittelwihr School on Magnetism and Synchrotron Radiation the tradition of teaching the state-of-the-art on modern research developments continues and is expressed through the present set of extensive lectures provided in this volume. While primarily aimed at postgraduate students and newcomers to the field, this volume will also benefit researchers and lecturers actively working in the field.
Book Synopsis Thermodynamics, Diffusion and the Kirkendall Effect in Solids by : Aloke Paul
Download or read book Thermodynamics, Diffusion and the Kirkendall Effect in Solids written by Aloke Paul and published by Springer. This book was released on 2014-07-16 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book basic and some more advanced thermodynamics and phase as well as stability diagrams relevant for diffusion studies are introduced. Following, Fick’s laws of diffusion, atomic mechanisms, interdiffusion, intrinsic diffusion, tracer diffusion and the Kirkendall effect are discussed. Short circuit diffusion is explained in detail with an emphasis on grain boundary diffusion. Recent advances in the area of interdiffusion will be introduced. Interdiffusion in multi-component systems is also explained. Many practical examples will be given, such that researches working in this area can learn the practical evaluation of various diffusion parameters from experimental results. Large number of illustrations and experimental results are used to explain the subject. This book will be appealing for students, academicians, engineers and researchers in academic institutions, industry research and development laboratories.
Book Synopsis Granite: From Segregation of Melt to Emplacement Fabrics by : J.-L. Bouchez
Download or read book Granite: From Segregation of Melt to Emplacement Fabrics written by J.-L. Bouchez and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: viii debate of those earlier days has been beautifully summarized by H. H. Read in his famous "Granite Controversy" (1957). Read's formulation of the controversy occurred at the time when geochemistry was as a new and powerful tool. The new techniques opened era during which emerging an granites were considered mainly from this new viewpoint. Geochemical signatures have shown that mantle and crustal origins for granites were both possible, but the debate on how and why granites are emplaced did not progress much. Meanwhile, structural geology was essentially geometrical and mechanistic. In the early 70's, the structural approach began to widen to include solid state physics and fluid dynamics. Detailed structural maps of granitic bodies were again published, mainly in France, and analysed in terms of magmatic and plastic flow. The senior editor of this volume and his students deserve much of the credit for this new development. Via microstructural and petrofabric studies, they were able to discriminate between strain in the presence of residual melt or in the solid-state, and, by systematically measuring magnetic fabrics (AMS), they have been able to map magmatic foliations and lineations in ever finer detail, using the internal markers within granites coming from different tectonic environments. The traditional debate has been shifted anew. The burning question now seems to be how the necessary, large-scale or local, crustal extension required for granite emplacement can be obtained.
Book Synopsis Alpha-particle Calibrations by : J. M. R. Hutchinson
Download or read book Alpha-particle Calibrations written by J. M. R. Hutchinson and published by . This book was released on 1987 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modern Surface Organometallic Chemistry by : Jean-Marie Basset
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.
Book Synopsis On the Western Circuit by : Thomas Hardy
Download or read book On the Western Circuit written by Thomas Hardy and published by Good Press. This book was released on 2020-12-08 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: On the Western Circuit is a novella by Thomas Hardy. Edith is a rural girl who falls in love with an older man, in this romance where the mistakes of love life are tragically explored and bared naked.
Book Synopsis Large Deviations Techniques and Applications by : Amir Dembo
Download or read book Large Deviations Techniques and Applications written by Amir Dembo and published by Springer Science & Business Media. This book was released on 2009-11-03 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: Large deviation estimates have proved to be the crucial tool required to handle many questions in statistics, engineering, statistial mechanics, and applied probability. Amir Dembo and Ofer Zeitouni, two of the leading researchers in the field, provide an introduction to the theory of large deviations and applications at a level suitable for graduate students. The mathematics is rigorous and the applications come from a wide range of areas, including electrical engineering and DNA sequences. The second edition, printed in 1998, included new material on concentration inequalities and the metric and weak convergence approaches to large deviations. General statements and applications were sharpened, new exercises added, and the bibliography updated. The present soft cover edition is a corrected printing of the 1998 edition.
Book Synopsis Entropy, Large Deviations, and Statistical Mechanics by : Richard.S. Ellis
Download or read book Entropy, Large Deviations, and Statistical Mechanics written by Richard.S. Ellis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has two main topics: large deviations and equilibrium statistical mechanics. I hope to convince the reader that these topics have many points of contact and that in being treated together, they enrich each other. Entropy, in its various guises, is their common core. The large deviation theory which is developed in this book focuses upon convergence properties of certain stochastic systems. An elementary example is the weak law of large numbers. For each positive e, P{ISn/nl 2: e} con verges to zero as n --+ 00, where Sn is the nth partial sum of indepen dent identically distributed random variables with zero mean. Large deviation theory shows that if the random variables are exponentially bounded, then the probabilities converge to zero exponentially fast as n --+ 00. The exponen tial decay allows one to prove the stronger property of almost sure conver gence (Sn/n --+ 0 a.s.). This example will be generalized extensively in the book. We will treat a large class of stochastic systems which involve both indepen dent and dependent random variables and which have the following features: probabilities converge to zero exponentially fast as the size of the system increases; the exponential decay leads to strong convergence properties of the system. The most fascinating aspect of the theory is that the exponential decay rates are computable in terms of entropy functions. This identification between entropy and decay rates of large deviation probabilities enhances the theory significantly.
Book Synopsis Statistical Mechanics of Elasticity by : J.H. Weiner
Download or read book Statistical Mechanics of Elasticity written by J.H. Weiner and published by Courier Corporation. This book was released on 2012-02-10 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced, self-contained treatment illustrates general principles and elastic behavior of solids. Topics include thermoelastic behavior of crystalline and polymeric solids, interatomic force laws, behavior of solids, and thermally activated processes. 1983 edition.
