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Proprietes Statiques Et Dynamiques Des Chaines Aimants
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Book Synopsis Propriétés statiques et dynamiques des chaînes aimants by : Vivien-Maxime Pianet
Download or read book Propriétés statiques et dynamiques des chaînes aimants written by Vivien-Maxime Pianet and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans le domaine du stockage de l'information, la miniaturisation de l'unité magnétique portant l'information est un enjeu capital. Ainsi, la découverte de molécules possédant des propriétés de relaxation lente de leur aimantation, comparables à celles des aimants classiques, constitue une avancée majeure suscitant l'espoir de pouvoir un jour stocker l'information à l'échelle moléculaire.Cette thèse a pour but d'étudier les propriétés magnétiques des chaînes aimants. Ces chaînes sont constituées d'unités magnétiques liées par des interactions magnétiques au sein d'un réseau unidimensionnel. Au delà de leurs potentielles applications, les chaînes aimants sont parfaitement adaptées à l'étude fondamentale des chaînes de spins. Le premier chapitre de ce manuscrit constitue un rappel des propriétés statiques et dynamiques des chaînes aimants connues à ce jour. Le deuxième chapitre décrit les propriétés statiques des parois séparant les différents domaines d'aimantation dans des chaînes de spins de topologies magnétiques variées. Le troisième chapitre de ce manuscrit décrit les propriétés dynamiques des chaînes de spins d'Ising. Bien que seul le modèle de Glauber soit utilisé dans la littérature associée aux chaînes aimants, il existe une infinité de modèles dynamiques d'Ising.Grâce à l'étude détaillée de trois modèles, il est montré dans ce chapitre que l'application d'un champ magnétique permet de révéler différentes dynamiques de relaxation de l'aimantation pour chacun des modèles considérés. Ces résultats permettent enfin de proposer deux protocoles expérimentaux à même de déterminer le modèle dynamique le plus adapté à l'étude des chaînes aimants.
Book Synopsis Molecular Magnetic Materials by : Barbara Sieklucka
Download or read book Molecular Magnetic Materials written by Barbara Sieklucka and published by John Wiley & Sons. This book was released on 2017-01-17 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of this rapidly expanding interdisciplinary field of research. After a short introduction to the basics of magnetism and molecular magnetism, the text goes on to cover specific properties of molecular magnetic materials as well as their current and future applications. Design strategies for acquiring molecular magnetic materials with desired physical properties are discussed, as are such multifunctional materials as high Tc magnets, chiral and luminescent magnets, magnetic sponges as well as photo- and piezo-switching magnets. The result is an excellent resource for materials scientists, chemists, physicists and crystal engineers either entering or already working in the field.
Book Synopsis Statique et dynamique d'assemblées de nanoparticules magnétiques en interactions by : Mohand Azeggagh
Download or read book Statique et dynamique d'assemblées de nanoparticules magnétiques en interactions written by Mohand Azeggagh and published by . This book was released on 2007 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nous avons étudié l'effet des interactions dipôle-dipôle (DDI) sur les propriétés statiques et dynamiques d'assemblées de nanoparticules magnétiques, tenant compte des distributions de volume et des axes d'anisotropies et du champ magnétique. Nous avons obtenu des expressions analytiques (approchées) de l'aimantation en fonction du champ, de l'anisotropie et des DDI que nous avons confrontées au calcul numérique (Monte Carlo). Nous avons montré qu'à cause des deux dernières contributions, l'aimantation ne peut être décrite par la loi de Langevin, fréquemment utilisée. Le comportement dynamique de l'assemblée a été étudié en tenant compte de l'effet des DDI sur le temps de relaxation longitudinale et sur l'aimantation zero-field-cooled (ZFC). Nous avons montré que les DDI diminuent le volume critique de l'assemblée qui sépare entre les populations de particules superparamagnétiques et bloquées. Il a été montré que le maximum de Tmax(H) subit un déplacement vers les basses valeurs du champ appliqué quand les DDI sont augmentées. Ce qui explique les observations expérimentales correspondantes et, en particulier, la modification du comportement de cette fonction d'une courbe en cloche à celle d'une fonction monotone décroissante avec les DDI. Nous avons souligné l'importance du rôle joué par l'amortissement en présence d'un champ transverse. De plus, en comparant les résultats obtenus sur des assemblées à anisotropie orientée avec celles à anisotropie aléatoire, nous avons montré l'importance de la texture sur la variation du volume critique d'une assemblée en interaction. Finalement, en utilisant des travaux récents sur la modélisation des effets de surface par une approche effective, nous avons étudié la compétition entre cette dernière et les DDI et avons fourni une explication plausible du phénomène observé.
Book Synopsis The Cambridge History of Philosophy of the Scientific Revolution by : David Marshall Miller
Download or read book The Cambridge History of Philosophy of the Scientific Revolution written by David Marshall Miller and published by . This book was released on 2022-01-06 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of cutting-edge scholarship on the close interaction of philosophy with science at the birth of the modern age.
Book Synopsis The telephone, the microphone, and the phonograph. Transl by : comte Théodore Achille L. Du Moncel
Download or read book The telephone, the microphone, and the phonograph. Transl written by comte Théodore Achille L. Du Moncel and published by . This book was released on 1879 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Catalogue of Scientific Literature [1901-1914] by :
Download or read book International Catalogue of Scientific Literature [1901-1914] written by and published by . This book was released on 1902 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A History of Thermodynamics by : Ingo Müller
Download or read book A History of Thermodynamics written by Ingo Müller and published by Springer Science & Business Media. This book was released on 2007-07-16 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers an easy to read, all-embracing history of thermodynamics. It describes the long development of thermodynamics, from the misunderstood and misinterpreted to the conceptually simple and extremely useful theory that we know today. Coverage identifies not only the famous physicists who developed the field, but also engineers and scientists from other disciplines who helped in the development and spread of thermodynamics as well.
Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Book Synopsis Design and Modeling of Mechanical Systems—III by : Mohamed Haddar
Download or read book Design and Modeling of Mechanical Systems—III written by Mohamed Haddar and published by Springer. This book was released on 2017-11-25 with total page 1225 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a collection of original peer-reviewed contributions presented at the 7th International Congress on Design and Modeling of Mechanical Systems (CMSM’2017), held in Hammamet, Tunisia, from the 27th to the 29th of March 2017. It reports on both research findings, innovative industrial applications and case studies concerning mechanical systems and related to modeling and analysis of materials and structures, multiphysics methods, nonlinear dynamics, fluid structure interaction and vibroacoustics, design and manufacturing engineering. Continuing on the tradition of the previous editions, this proceedings offers a broad overview on the state-of-the art in the field and a useful resource for academic and industry specialists active in the field of design and modeling of mechanical systems. CMSM’2017 was jointly organized by two leading Tunisian research laboratories: the Mechanical, Modeling and Manufacturing Laboratory of the National Engineering School of Sfax and the Mechanical Engineering Laboratory of the National Engineering School of Monastir..
Book Synopsis Innovate Bristol by : Sven Boermeester
Download or read book Innovate Bristol written by Sven Boermeester and published by . This book was released on 2019-12 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Bond Graph Modelling of Engineering Systems by : Wolfgang Borutzky
Download or read book Bond Graph Modelling of Engineering Systems written by Wolfgang Borutzky and published by Springer Science & Business Media. This book was released on 2011-06-01 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: The author presents current work in bond graph methodology by providing a compilation of contributions from experts across the world that covers theoretical topics, applications in various areas as well as software for bond graph modeling. It addresses readers in academia and in industry concerned with the analysis of multidisciplinary engineering systems or control system design who are interested to see how latest developments in bond graph methodology with regard to theory and applications can serve their needs in their engineering fields. This presentation of advanced work in bond graph modeling presents the leading edge of research in this field. It is hoped that it stimulates new ideas with regard to further progress in theory and in applications.
Book Synopsis Molecular Materials by : Duncan W. Bruce
Download or read book Molecular Materials written by Duncan W. Bruce and published by John Wiley & Sons. This book was released on 2011-04-04 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: “... the book does an excellent job of putting together several different classes of materials. Many common points emerge, and the book may facilitate the development of hybrids in which the qualities of the “parents” are enhanced.” –Angew. Chem. Int. Ed. 2011 With applications in optoelectronics and photonics, quantum information processing, nanotechnology and data storage, molecular materials enrich our daily lives in countless ways. These materials have properties that depend on their exact structure, the degree of order in the way the molecules are aligned and their crystalline nature. Small, delicate changes in molecular structure can totally alter the properties of the material in bulk. There has been increasing emphasis on functional metal complexes that demonstrate a wide range of physical phenomena. Molecular Materials represents the diversity of the area, encapsulating magnetic, optical and electrical properties, with chapters on: Metal-Based Quadratic Nonlinear Optical Materials Physical Properties of Metallomesogens Molecular Magnetic Materials Molecular Inorganic Conductors and Superconductors Molecular Nanomagnets Structured to include a clear introduction, a discussion of the basic concepts and up-to-date coverage of key aspects, each chapter provides a detailed review which conveys the excitement of work in that field. Additional volumes in the Inorganic Materials Series: Low-Dimensional Solids | Molecular Materials | Porous Materials | Energy Materials
Book Synopsis Music and the Occult by : Joscelyn Godwin
Download or read book Music and the Occult written by Joscelyn Godwin and published by . This book was released on 1995-01-01 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: Occultism and esotericism flourished in 19th-century France as they did nowhere else. Many philosophers sought the key to the universe, and some claimed to have found it. In the unitive vision that resulted, music invariably played an important part.
Book Synopsis Célébrons Nos Réussites Féministes by : Karen Blackford
Download or read book Célébrons Nos Réussites Féministes written by Karen Blackford and published by University of Ottawa Press. This book was released on 1999 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abuses by international corporations, withdrawal of social services and implementation of regressive legislation continue to impoverish women and reduce the quality of their everyday lives: women have reason to be demoralized. Recognizing this challenging and difficult situation, this volume reviews women's successes at feminizing Canadian institutions. It is intended to hearten the women's movement and show the potential for feminist change and suggest ways to realize this potential. Bilingual edition.
Book Synopsis Climate, Earth Processes and Earth History by : Richard J. Huggett
Download or read book Climate, Earth Processes and Earth History written by Richard J. Huggett and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today, climate-related processes and problems are referred to as Global Change by nearly everyone including scientists, politicians, and economists; citizens worldwide are anxious about the often ob served disorientation of our environment under the influence of man. Better information on the Earth's natural systems and their possible alterations is necessary. The topic itself is so wide that sound scien tific descriptions of it as a whole are rare. For the non-specialist infor mation from relevant fields is not easy to obtain; and often, the pro gnostic models presented are contradictory and even for specialists difficult to evaluate. Therefore, this book on Climate, Earth Processes and Earth History by Richard Huggett fills an important gap. It discusses the great, climate-related areas of the Earth's environment. The atmosphere, the hydrosphere, the sediments as products of weathering and geomorphic processes, the relief as landforms and soils, and the biosphere are thoroughly treated as the prominent sub systems which are greatly affected by climate. These subsystems not only control the visual and internal aspects of our landscapes, but they are themselves especially influenced by climatic changes which can be due to either changes in the natural system or anthropogenic changes. Thus, our landscapes will be subject to significant altera tions, if climatic variations exceed certain thresholds. The plan for the present book by Richard Huggett was originally discussed in regard to the Springer Series on Physical Environment.
Book Synopsis Masters Theses in the Pure and Applied Sciences by : Wade H. Shafer
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer. This book was released on 1985-03 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1 957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 28 (thesis year 1 983) a total of 10,661 theses titles from 26 Canadian and 197 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 28 reports theses submitted in-1983, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Book Synopsis A German-English Dictionary for Chemists by : Austin McDowell Patterson
Download or read book A German-English Dictionary for Chemists written by Austin McDowell Patterson and published by . This book was released on 1935 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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