Download or read book Concevoir des circuits s curis s tr s faible consommation written by Grégoire Gimenez and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Depuis ses débuts, l'industrie micro-électronique est confrontée au diptyque réduction des coûts et amélioration des performances. Mais la 3ème révolution digitale et l'avènement du « tous, tout, partout, tout le temps connectés » ont subversivement redéfini les enjeux et les défis auxquels cette industrie fait face. Ainsi la consommation et la sécurité sont des problématiques, hier encore limitées à des applications très spécifiques, qui aujourd'hui gagnent en importance et viennent contraindre la majorité des circuits intégrés. Si pendant des années la loi de Moore et l'échelle de Dennard ont observé une augmentation continue du nombre de calculs par unité d'énergie, celles-ci s'essoufflent et les limites physiques et économiques semblent avoir pris le dessus. Par ailleurs, ces deux enjeux sont très souvent en opposition, et la sécurité ne se fait généralement qu'au détriment de la consommation. Dans ce manuscrit nous proposons d'étudier une alternative se basant sur de la logique dîtes asynchrone, ou sans horloge. Nous nous attachons particulièrement à montrer que le principal a priori vis-à-vis de ces circuits -- leur complexité de conception -- peut être contourné en utilisant les outils de CAO standards, faisant d'eux une solution accessible aux concepteurs synchrones. Nous montrons aussi que ces circuits permettent de construire des primitives de sécurité - PUF et TRNG - très performantes. Nous étudions leurs failles et proposons des contremesures adaptées. Finalement, sans prêcher un changement radical vers les circuits auto-séquencés, nous plaidons pour une intégration progressive de la logique asynchrone en commençant par les éléments sensibles à la consommation et à la sécurité.
Download or read book CONCEPTION DES CIRCUITS INTEGRES POUR LA BASSE CONSOMMATION written by Gabor Kelemen and published by . This book was released on 1997 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE THESE S'INSCRIT DANS L'AXE DE RECHERCHE CIRCUIT INTEGRE TRES BASSE CONSOMMATION. L'OBJECTIF DE CETTE THESE EST DE DEFINIR UNE STRATEGIE DE REDUCTION DE LA TENSION D'ALIMENTATION, AINSI QU'UNE FAMILLE LOGIQUE (TRAITEMENT MULTIVALUE) PERMETTANT DE REDUIRE LE PLUS POSSIBLE LA CONSOMMATION DES CIRCUITS NUMERIQUES DE TYPE TRAITEMENT DE SIGNAL. CE SUJET DE THESE SE PLACE DANS L'HYPOTHESE OU L'ON POURRAIT SIMPLEMENT SUBSTITUER DES PORTES LOGIQUES QUI CONSOMMERAIENT MOINS (VIA LA REDUCTION DE LA TENSION D'ALIMENTATION ET LE CHANGEMENT DE LA LOGIQUE) AUX PORTES LOGIQUES ACTUELLEMENT UTILISEES. DANS UN PREMIER TEMPS, NOUS ETUDIERONS LES LIMITES EN PERFORMANCE, THEORIQUES ET PRATIQUES, DE LA LOGIQUE CMOS EN TERMES DE PUISSANCES DISSIPEE, LES EVOLUTIONS DE CES PERFORMANCES LIMITES COMPTE TENU DE L'EVOLUTION PREVISIBLE DE LA TECHNOLOGIE ELLE-MEME (REDUCTION DES GEOMETRIES ET DE LA TENSION D'ALIMENTATION). ENSUITE, NOUS SITUERONS LA LOGIQUE CMOS PAR RAPPORT AUX AUTRES LOGIQUES (LOGIQUE DYNAMIQUE, A PRECHARGE, DOMINO, LOGIQUE MULTIVALUEE) DANS L'ESPACE CONSOMMATION/VITESSE, CE QUI NOUS PERMETTRA DE CHOISIR LA MEILLEURE FAMILLE LOGIQUE POUR LE TRAITEMENT ET LA TRANSMISSION DES DONNEES POUR LES CIRCUITS DE TRAITEMENT DU SIGNAL. LA LOGIQUE MULTIVALUEE, BIEN QUE TOMBEE EN DESUETUDE, PERMET D'AUGMENTER LA PUISSANCE DE TRAITEMENTS POUR UN NOMBRE DE TRANSISTORS DONNE. IL EST POSSIBLE QUE LA REDUCTION DES CAPACITES PARASITES PAR BIT D'INFORMATION TRAITE PERMETTE DE REDUIRE LA CONSOMMATION D'UN CIRCUIT DONNE. NOUS EVALUERONS DONC L'INTERET DE TELLES LOGIQUES, REVUE SOUS L'ANGLE DE LA REDUCTION DE LA CONSOMMATION. ENFIN, NOUS AVONS EXPLOITE LES AVANTAGES DE LA REDUCTION DE LA TENSION D'ALIMENTATION DANS UN CIRCUIT EN VUE DE LA BASSE CONSOMMATION. NOUS AVONS REGARDE DANS QUELLE MESURE ON POUVAIT RENDRE INDEPENDANTE LES TENSIONS D'ALIMENTATION INTERNES DES TENSIONS EXTERNES NORMALISEES ET COMMENT GENERER CES TENSIONS D'ALIMENTATION INTERNES. NOUS AVONS ETUDIE LA CONSOMMATION DES GENERATEURS DE TENSION INTERNES ET DES TRANSLATEURS DE NIVEAUX QUI ASSURENT LA COMMUNICATION ENTRE LES PARTIES DU CIRCUIT ALIMENTEES DIFFEREMMENT. LE DEVELOPPEMENT D'UN CIRCUIT DE VALIDATION A PERMIS D'EVALUER LES GAINS OBTENUS.
Download or read book High Level Synthesis written by Philippe Coussy and published by Springer Science & Business Media. This book was released on 2008-08-01 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an excellent collection of contributions addressing different aspects of high-level synthesis from both industry and academia. It includes an overview of available EDA tool solutions and their applicability to design problems.
Download or read book Corpus written by Jean-Luc Nancy and published by Fordham Univ Press. This book was released on 2009-08-25 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: How have we thought “the body”? How can we think it anew? The body of mortal creatures, the body politic, the body of letters and of laws, the “mystical body of Christ”—all these (and others) are incorporated in the word Corpus, the title and topic of Jean-Luc Nancy’s masterwork. Corpus is a work of literary force at once phenomenological, sociological, theological, and philosophical in its multiple orientations and approaches. In thirty-six brief sections, Nancy offers us at once an encyclopedia and a polemical program—reviewing classical takes on the “corpus” from Plato, Aristotle, and Saint Paul to Descartes, Hegel, Husserl, and Freud, while demonstrating that the mutations (technological, biological, and political) of our own culture have given rise to the need for a new understanding of the body. He not only tells the story of this cultural change but also explores the promise and responsibilities that such a new understanding entails. The long-awaited English translation is a bold, bravura rendering. To the title essay are added five closely related recent pieces—including a commentary by Antonia Birnbaum—dedicated in large part to the legacy of the “mind-body problem” formulated by Descartes and the challenge it poses to rethinking the ancient problems of the corpus. The last and most poignant of these essays is “The Intruder,” Nancy’s philosophical meditation on his heart transplant. The book also serves as the opening move in Nancy’s larger project called “The deconstruction of Christianity.”
Download or read book Notebooks written by Paul Valéry and published by Peter Lang Gmbh, Internationaler Verlag Der Wissenschaften. This book was released on 2000 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Cahiers/Notebooks of Paul Valéry are a unique form of writing. They reveal Valéry as one of the most radical and creative minds of the twentieth century, encompassing a wide range of investigation into all spheres of human activity. His work explores the arts, the sciences, philosophy, history and politics, investigating linguistic, psychological and social issues, all linked to the central questions, relentlessly posed: 'what is the human mind and how does it work?', 'what is the potential of thought and what are its limits?' But we encounter here too, Valéry the writer: exploratory, fragmentary texts undermine the boundaries between analysis and creativity, between theory and practice. Neither journal nor diary, eluding the traditional genres of writing, the Notebooks offer lyrical passages, writing of extreme beauty, prose poems of extraordinary descriptive power alongside theoretical considerations of poetics, ironic aphorisms and the most abstract kind of analysis. The concerns and the insights that occupied Valéry's inner voyages over more than 50 years remain as relevant as ever for the contemporary reader: for the Self that is his principal subject is at once singular and universal.
Download or read book Precision Measurement and Fundamental Constants Proceedings written by United States. National Bureau of Standards and published by . This book was released on 1971 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book UCRL written by U.S. Atomic Energy Commission and published by . This book was released on 19?? with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Functional Integration written by Cécile Dewitt-Morette and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: The program of the Institute covered several aspects of functional integration -from a robust mathematical foundation to many applications, heuristic and rigorous, in mathematics, physics, and chemistry. It included analytic and numerical computational techniques. One of the goals was to encourage cross-fertilization between these various aspects and disciplines. The first week was focused on quantum and classical systems with a finite number of degrees of freedom; the second week on field theories. During the first week the basic course, given by P. Cartier, was a presentation of a recent rigorous approach to functional integration which does not resort to discretization, nor to analytic continuation. It provides a definition of functional integrals simpler and more powerful than the original ones. Could this approach accommodate the works presented by the other lecturers? Although much remains to be done before answering "Yes," there seems to be no major obstacle along the road. The other courses taught during the first week presented: a) a solid introduction to functional numerical techniques (A. Sokal) and their applications to functional integrals encountered in chemistry (N. Makri). b) integrals based on Poisson processes and their applications to wave propagation (S. K. Foong), in particular a wave-restorer or wave-designer algorithm yielding the initial wave profile when one can only observe its distortion through a dissipative medium. c) the formulation of a quantum equivalence principle (H. Kleinert) which. given the flat space theory, yields a well-defined quantum theory in spaces with curvature and torsion.
Download or read book Design and Modeling of Mechanical Systems written by Mohamed Haddar and published by Springer Science & Business Media. This book was released on 2013-03-12 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 5th International Congress on Design and Modeling of Mechanical Systems (CMSM) was held in Djerba, Tunisia on March 25-27, 2013 and followed four previous successful editions, which brought together international experts in the fields of design and modeling of mechanical systems, thus contributing to the exchange of information and skills and leading to a considerable progress in research among the participating teams. The fifth edition of the congress (CMSM ́2013), organized by the Unit of Mechanics, Modeling and Manufacturing (U2MP) of the National School of Engineers of Sfax, Tunisia, the Mechanical Engineering Laboratory (MBL) of the National School of Engineers of Monastir, Tunisia and the Mechanics Laboratory of Sousse (LMS) of the National School of Engineers of Sousse, Tunisia, saw a significant increase of the international participation. This edition brought together nearly 300 attendees who exposed their work on the following topics: mechatronics and robotics, dynamics of mechanical systems, fluid structure interaction and vibroacoustics, modeling and analysis of materials and structures, design and manufacturing of mechanical systems. This book is the proceedings of CMSM ́2013 and contains a careful selection of high quality contributions, which were exposed during various sessions of the congress. The original articles presented here provide an overview of recent research advancements accomplished in the field mechanical engineering.
Download or read book Test and Diagnosis of Analogue Mixed signal and RF Integrated Circuits written by Yichuang Sun and published by IET. This book was released on 2008-05-30 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive discussion of automatic testing, diagnosis and tuning of analogue, mixed-signal and RF integrated circuits, and systems in a single source. As well as fundamental concepts and techniques, the book reports systematically the state of the arts and future research directions of those areas. A complete range of circuit components are covered and test issues from the SoC perspective. An essential reference for researchers and engineers in mixed signal testing, postgraduate and senior undergraduate students.
Download or read book 2nd Pan African Symposium on the Sustainable Use of Natural Resources in Africa written by Bihini won wa Musiti and published by IUCN. This book was released on 2003 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bilingual publication results from a four-day symposium aimed at capturing the general directions and analytical issues that characterize approaches to sustainable use in Africa. The papers included in this work are organized under four major headings: modes of use, devolution, scale issues and external issues. Authors explore these themes through the use of case studies and the description of specific regional experiences. External issues are further explored in a series of commissioned policy papers which have also been included.
Download or read book The Antinomies Of Realism written by Fredric Jameson and published by Verso Books. This book was released on 2013-10-08 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Antinomies of Realism is a history ofthe nineteenth-century realist novel and its legacy told without a glimmer of nostalgia for artistic achievements that the movement of history makes it impossible to recreate. The works of Zola, Tolstoy, Pérez Galdós, and George Eliot are in the most profound sense inimitable, yet continue to dominate the novel form to this day. Novels to emerge since struggle to reconcile the social conditions of their own creation with the history of this mode of writing: the so-called modernist novel is one attempted solution to this conflict, as is the ever-more impoverished variety of commercial narratives – what today’s book reviewers dub “serious novels,” which are an attempt at the impossible endeavor to roll back the past. Fredric Jameson examines the most influential theories of artistic and literary realism, approaching the subject himself in terms of the social and historical preconditions for realism’s emergence. The realist novel combined an attention to the body and its states of feeling with a focus on the quest for individual realization within the confines of history. In contemporary writing, other forms of representation – for which the term “postmodern” is too glib – have become visible: for example, in the historical fiction of Hilary Mantel or the stylistic plurality of David Mitchell’s novels. Contemporary fiction is shown to be conducting startling experiments in the representation of new realities of a global social totality, modern technological warfare, and historical developments that, although they saturate every corner of our lives, only become apparent on rare occasions and by way of the strangest formal and artistic devices. In a coda, Jameson explains how “realistic” narratives survived the end of classical realism. In effect, he provides an argument for the serious study of popular fiction and mass culture that transcends lazy journalism and the easy platitudes of recent cultural studies.
Download or read book Reactor Core Materials written by and published by . This book was released on 1959 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Renewable Hydrogen and Other Sustainable Energy Carriers written by Abdallah Khellaf and published by Springer Nature. This book was released on 2020-08-19 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines a broad range of advances in hydrogen energy and alternative fuel developments and their role in the energy transition. The respective contributions were presented at the International Symposium on Sustainable Hydrogen, held in Algiers, Algeria on November 27-28, 2019. The transition from non-renewable polluting energy to sustainable green energy requires not only new energy sources but also new storage techniques and smart energy management. This situation has sparked renewed interest in hydrogen and alternative fuels, as they could help meet these needs. Indeed, hydrogen can not only be used as a clean energy vector or as an alternative fuel, but also as a storage medium or as an intermediary that enables improved energy management. This text offers a valuable reference guide for those working in the professional energy sector, as well as for students and instructors in academia who want to learn about the state of the art and future directions in the fields of hydrogen energy, alternative fuels and sustainable energy development.
Download or read book Electrostatic Kinetic Energy Harvesting written by Philippe Basset and published by John Wiley & Sons. This book was released on 2016-03-28 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Harvesting kinetic energy is a good opportunity to power wireless sensor in a vibratory environment. Besides classical methods based on electromagnetic and piezoelectric mechanisms, electrostatic transduction has a great perspective in particular when dealing with small devices based on MEMS technology. This book describes in detail the principle of such capacitive Kinetic Energy Harvesters based on a spring-mass system. Specific points related to the design and operation of kinetic energy harvesters (KEHs) with a capacitive interface are presented in detail: advanced studies on their nonlinear features, typical conditioning circuits and practical MEMS fabrication.
Download or read book Review of Fuel Failures in Water Cooled Reactors 2006 2015 IAEA Nuclear Energy Series No Nf T 2 5 written by International Atomic Energy Agency and published by . This book was released on 2019-12-19 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: This updated version of Nuclear Energy Series NF-T-2.1 provides information on all aspects of fuel failures in current nuclear power plant operations.
Download or read book Surface Tension in Microsystems written by Pierre Lambert and published by Springer Science & Business Media. This book was released on 2013-08-31 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes how surface tension effects can be used by engineers to provide mechanical functions in miniaturized products (1 mm). Even if precursors of this field such as Jurin or Laplace already date back to the 18th century, describing surface tension effects from a mechanical perspective is very recent.brThe originality of this book is to consider the effects of capillary bridges on solids, including forces and torques exerted both statically and dynamically by the liquid along the 6 degrees-of-freedom.brIt provides a comprehensive approach to various applications, such as capillary adhesion (axial force), centering force in packaging and micro-assembly (lateral force) and recent developments such as a capillary motor (torque).
