Download or read book Etude de la conception des syst mes embarqu s sur silicium written by François Cloute and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Etude de la conception des syst mes embarqu s sur silicium written by François Cloute and published by . This book was released on 2001 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: La conception des systèmes embarqués représente un défi majeur d'une importance croissante. Les technologies submicroniques permettent de fabriquer des systèmes toujours plus complexes, gagnant de nouveaux marchés dans les domaines des moyens de transport ou des télécommunications, tels que la téléphonie mobile, la télévision numérique, ou le multimédia. Cependant, cette potentialité est de plus en plus sous utilisée, car l'évolution de la capacité à concevoir de tels systèmes n'augmente pas au même rythme. Cette croissante capacité d'intégration accentue le besoin d'une nouvelle méthodologie de conception. L'objectif de cette thèse est de tentes d'apporter des éléments de réponse au problème de la conception des systèmes embarqués. Nous étudions pour ce faire une approche reposant sur la conception concurrente des parties matérielles câblées et des parties logicielles enfouies, en confrontant cette approche à la conception d'un équipement avionique. Cette thèse propose de passer d'une conception de niveau composant vers une conception qui appréhende le problème à partir d'un point de vue plus global : le niveau système. Les bénéfices issus de cette élévation d'abstraction doivent apporter un gain d'optimisation de la conception aussi bien en terme de qualité qu'en terme de productivité. Les étapes d'une méthodologie de codesign incluent au delà de la spécification de l'application au niveau système, un partitionnement matériel/logiciel, une modélisation des architectures potentielles, une sélection de l'architecture, une synthèse concurrente du matériel et du logiciel, et une covérification.
Download or read book Estimation et optimisation de la consommation lors de la conception globale des syst mes autonomes written by Patricia Guitton-Ouhamou and published by . This book was released on 2004 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les systèmes embarqués représentent une part de plus en plus impor-tante du marché semiconducteurs. Les systèmes embarqués visent des applications plus gourmandes en capacité de calcul, augmentant du même coup la surface de sili-cium et l'énergie dissipée. Un des problèmes de la conception système est le patition-nement d'applications qui requiert l'utilisation de méthodes complexes. En effet, le partitionnement sous contraintes de temps, basé sur un algorithme d'ordonnancement avec un objectif de minimisation de la surface de silicium ou de la consommation est un problème NP-difficile. Ce travail de thèse etudie la prise en compte de la consom-mation (énergie et pic de puissance) lors de la conception globale de systèmes autono-mes. Une première étude consiste à estimer la consommation des divers composants d'une architecture SoC. Puis, nous nous sommes intéressés aux deux étapes principa-les des méthodes de partitionnement : l'allocation et l'ordonnancement. En particulier, la technique d'ajustement conjoint de la tension et de la fréquence est considérée dans l'ordonnancement pour minimiser l'énergie. A la suite de ces optimisations, une ges-tion des modes basse consommation est réalisée, ayant pour objectif de mettre les pro-cesseurs en état de repos ou repos profond dès que la possibilité se présente, ce changement de mode permettant de gagner en consommation. Ce travail a été testé sur divers exemples, comme une application de détection de mouvement sur fond d'ima-ges fixes pour caméra embarquée.
Download or read book The Disappearing Computer written by Norbert Streitz and published by Springer. This book was released on 2007-07-20 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines how the computer, as we currently know it, will be replaced by a new generation of technologies, moving computing off the desktop and ultimately integrating it with real world objects and everyday environments. It provides a unique combination of concepts, methods and prototypes of ubiquitous and pervasive computing reflecting the current interest in smart environments and ambient intelligence.
Download or read book AGARD Conference Proceedings written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spacecraft Structures and Mechanical Testing written by Centre national d'études spatiales (France) and published by . This book was released on 1994 with total page 1416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide to Vulnerability Analysis for Computer Networks and Systems written by Simon Parkinson and published by Springer. This book was released on 2018-09-04 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: This professional guide and reference examines the challenges of assessing security vulnerabilities in computing infrastructure. Various aspects of vulnerability assessment are covered in detail, including recent advancements in reducing the requirement for expert knowledge through novel applications of artificial intelligence. The work also offers a series of case studies on how to develop and perform vulnerability assessment techniques using start-of-the-art intelligent mechanisms. Topics and features: provides tutorial activities and thought-provoking questions in each chapter, together with numerous case studies; introduces the fundamentals of vulnerability assessment, and reviews the state of the art of research in this area; discusses vulnerability assessment frameworks, including frameworks for industrial control and cloud systems; examines a range of applications that make use of artificial intelligence to enhance the vulnerability assessment processes; presents visualisation techniques that can be used to assist the vulnerability assessment process. In addition to serving the needs of security practitioners and researchers, this accessible volume is also ideal for students and instructors seeking a primer on artificial intelligence for vulnerability assessment, or a supplementary text for courses on computer security, networking, and artificial intelligence.
Download or read book The Science of metals written by Zay Jeffries and published by . This book was released on 1924 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Distributed Denial of Service DDoS Attacks written by Brij B. Gupta and published by CRC Press. This book was released on 2021-03-01 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: The complexity and severity of the Distributed Denial of Service (DDoS) attacks are increasing day-by-day. The Internet has a highly inconsistent structure in terms of resource distribution. Numerous technical solutions are available, but those involving economic aspects have not been given much consideration. The book, DDoS Attacks – Classification, Attacks, Challenges, and Countermeasures, provides an overview of both types of defensive solutions proposed so far, exploring different dimensions that would mitigate the DDoS effectively and show the implications associated with them. Features: Covers topics that describe taxonomies of the DDoS attacks in detail, recent trends and classification of defensive mechanisms on the basis of deployment location, the types of defensive action, and the solutions offering economic incentives. Introduces chapters discussing the various types of DDoS attack associated with different layers of security, an attacker’s motivations, and the importance of incentives and liabilities in any defensive solution. Illustrates the role of fair resource-allocation schemes, separate payment mechanisms for attackers and legitimate users, negotiation models on cost and types of resources, and risk assessments and transfer mechanisms. DDoS Attacks – Classification, Attacks, Challenges, and Countermeasures is designed for the readers who have an interest in the cybersecurity domain, including students and researchers who are exploring different dimensions associated with the DDoS attack, developers and security professionals who are focusing on developing defensive schemes and applications for detecting or mitigating the DDoS attacks, and faculty members across different universities.
Download or read book Ultra Wide Band Antennas written by Xavier Begaud and published by John Wiley & Sons. This book was released on 2013-03-04 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra Wide Band Technology (UWB) has reached a level of maturity that allows us to offer wireless links with either high or low data rates. These wireless links are frequently associated with a location capability for which ultimate accuracy varies with the inverse of the frequency bandwidth. Using time or frequency domain waveforms, they are currently the subject of international standards facilitating their commercial implementation. Drawing up a complete state of the art, Ultra Wide Band Antennas is aimed at students, engineers and researchers and presents a summary of internationally recognized studies.
Download or read book MIMO written by Alain Sibille and published by Academic Press. This book was released on 2010-12-03 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foreword from Arogyaswami Paulraj, Professor (Emeritus), Stanford University (USA) The first book to show how MIMO principles can be implemented in today’s mobile broadband networks and components Explains and solves some of the practical difficulties that arise in designing and implementing MIMO systems Both theory and implementation sections are written in the context of the most recent standards: IEEE 802.11n (WiFi); IEEE 802.16 (WIMAX); 4G networks (3GPP/3GPP2, LTE)
Download or read book An Introduction to Differential Manifolds written by Jacques Lafontaine and published by Springer. This book was released on 2015-07-29 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an introduction to differential manifolds. It gives solid preliminaries for more advanced topics: Riemannian manifolds, differential topology, Lie theory. It presupposes little background: the reader is only expected to master basic differential calculus, and a little point-set topology. The book covers the main topics of differential geometry: manifolds, tangent space, vector fields, differential forms, Lie groups, and a few more sophisticated topics such as de Rham cohomology, degree theory and the Gauss-Bonnet theorem for surfaces. Its ambition is to give solid foundations. In particular, the introduction of “abstract” notions such as manifolds or differential forms is motivated via questions and examples from mathematics or theoretical physics. More than 150 exercises, some of them easy and classical, some others more sophisticated, will help the beginner as well as the more expert reader. Solutions are provided for most of them. The book should be of interest to various readers: undergraduate and graduate students for a first contact to differential manifolds, mathematicians from other fields and physicists who wish to acquire some feeling about this beautiful theory. The original French text Introduction aux variétés différentielles has been a best-seller in its category in France for many years. Jacques Lafontaine was successively assistant Professor at Paris Diderot University and Professor at the University of Montpellier, where he is presently emeritus. His main research interests are Riemannian and pseudo-Riemannian geometry, including some aspects of mathematical relativity. Besides his personal research articles, he was involved in several textbooks and research monographs.
Download or read book Aeronomy written by P. M. Banks and published by Elsevier. This book was released on 2013-09-24 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aeronomy, Part A is an attempt to make a comprehensive exposition of the processes in aeronomy, the study of composition, movement, and thermal balance of the upper regions of the planetary atmosphere. The text covers topics such as atmospheric regions and atmospheric density, the temperature and molecular mass of the atmosphere; the permanent constituents and the molecular and isotonic composition of the homosphere; and the transition from the homosphere to the heterosphere. Also covered are topics such as the temperature gradient and energies in the thermosphere, conditions at 200km and above 250km, solar radiation and ionization, and aeronomic reactions. The book is recommended for scientists, especially natural physicists, who would like to know more about the field of aeronomy and its advances.
Download or read book Historical Dictionary of Iran written by John Henry Lorentz and published by Historical Dictionaries of Asia, Oceania, and the Middle East. This book was released on 2007 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an overview of specific events, movements, people, political and social groups, places, trends, and chronology. Allows for considerable exploration of a number of historical and contemporary topics and issues. The modern period, defined as 1800-present, is covered extensively.
Download or read book Pervasive Mobile and Ambient Wireless Communications written by Roberto Verdone and published by Springer Science & Business Media. This book was released on 2012-01-02 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reporting the findings of COST 2100, a major European intergovernmental project, this volume offers system designers a good source of guidelines based on channel characterization and measurement-based modeling, as well as worthwhile ideas for future research.
Download or read book Ch 2501 written by Msu Chemistry Department and published by . This book was released on 2023-08-10 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
