Download or read book Mod lisation et analyse de syst mes embarqu s written by KORDON Fabrice and published by Lavoisier. This book was released on 2013-04-01 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les systèmes embarqués rendent un nombre de services grandissant et font partie de notre vie quotidienne : ascenseurs, transports, téléphonie, médecine, énergie, industrie, etc. Ainsi, si l’on parle de plus en plus de systèmes embarqués, il s’agit avant tout d’un ensemble complet et intégré (matériel + logiciel). Le point central de leur développement est leur interaction avec leur environnement et les conséquences associées en termes de sécurité et de fiabilité. Cet ouvrage dresse un état de l’art du développement des systèmes embarqués. Il se concentre particulièrement sur leur modélisation et leur analyse. Il s’agit d’opérations cruciales qui détermineront la fiabilité du futur système. L’apparition récente des techniques basées sur l’ingénierie des modèles pourrait révolutionner le développement de ces systèmes en assurant une continuité entre le niveau conceptuel et l’implémentation de la partie logicielle. L’ouvrage expose trois approches parmi les plus utilisées : SysML (aspects ingénierie système), UML/MARTE et AADL (conception/analyse).

Download or read book Conception syst mique pour la conversion d nergie lectrique 1 gestion analyse et synth se written by ROBOAM Xavier and published by Lavoisier. This book was released on 2012-11-06 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le contexte actuel mène les concepteurs vers des systèmes toujours plus complexes et performants, intégrant un grand nombre d’éléments souvent fortement couplés et appartenant à divers champs de la physique énergétique. Après une présentation de l’approche systémique de conception, ce premier volume rassemble les points-clés permettant de modéliser et de caractériser efficacement des systèmes multiphysiques (formalismes graphiques, Bond Graphs, GIC/REM), d’analyser la qualité et la stabilité des réseaux et de contribuer à la robustesse en conception intégrée. La gestion de l’énergie des systèmes énergétiques hybrides incluant du stockage est également largement détaillée et différentes méthodes statistiques permettant de dimensionner les réseaux ou de caractériser leur sûreté de fonctionnement sont proposées (par exemple, la méthode de Monte-Carlo). Les techniques d’analyse, de synthèse et de gestion présentées dans cet ouvrage participent à l’optimisation des systèmes énergétiques. Elles sont complétées par des approches spécifiquement orientées vers la conception par optimisation, objets du second volume.

Download or read book Analyse et conception des syst mes lectriques embarqu s written by Franck Barruel and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les réseaux embarqués, au même titre que les réseaux de distribution, subissent de profondes mutations dues à l'essor de l'électronique de puissance. La tendance est claire : la puissance doit être intégrée au maximum sous forme électrique aux dépens de l'hydraulique et de la mécanique. Cette intégration de puissance est rendue possible par l'utilisation de convertisseurs d'électronique de puissance, fiables, modulaires et garantissant une grande souplesse de fonctionnement. C'est ce qui se passe actuellement pour les avions civils gros porteurs. L'insertion massive de ces convertisseurs dans les réseaux embarqués pose cependant quelques problèmes, principalement à cause la prolifération des harmoniques et à l'introduction de nouvelles dynamiques. Pour pouvoir quantifier et s'affranchir de ces problèmes, on doit utiliser des méthodes d'analyse et de conception adaptées. Dans ce contexte, le premier chapitre du mémoire fait un tour d'horizon de l'évolution des réseaux embarqués au cours des dernières décennies. Dans la deuxième partie, une méthodologie de conception des systèmes embarqués est proposée. Les deux chapitres suivants sont les premières applications de la méthodologie dans le contexte du contrat européen Power Optimized Aircraft. L'un est consacré à l'étud dynamique d'un système embarqué haute tension continue. L'approche modale, couplée au modèle moyen généralisé, est détaillée. L'accent est particulièrement mis sur les facteurs de participation et de sensibilité. Le dernier chapitre concerne la dépollution harmonique optimale où l'on propose de minimiser le volume des organes de filtrage par l'intermédiaire d'optimisations sous contraintes.

Download or read book Systemic Design Methodologies for Electrical Energy Systems written by Xavier Roboam and published by John Wiley & Sons. This book was released on 2012-12-17 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book proposes systemic design methodologies applied to electrical energy systems, in particular analysis and system management, modeling and sizing tools. It includes 8 chapters: after an introduction to the systemic approach (history, basics & fundamental issues, index terms) for designing energy systems, this book presents two different graphical formalisms especially dedicated to multidisciplinary devices modeling, synthesis and analysis: Bond Graph and COG/EMR. Other systemic analysis approaches for quality and stability of systems, as well as for safety and robustness analysis tools are also proposed. One chapter is dedicated to energy management and another is focused on Monte Carlo algorithms for electrical systems and networks sizing. The aim of this book is to summarize design methodologies based in particular on a systemic viewpoint, by considering the system as a whole. These methods and tools are proposed by the most important French research laboratories, which have many scientific partnerships with other European and international research institutions. Scientists and engineers in the field of electrical engineering, especially teachers/researchers because of the focus on methodological issues, will find this book extremely useful, as will PhD and Masters students in this field.

Download or read book Analyse et conception des syst mes lectriques embarqu s written by Franck Barruel and published by . This book was released on 2005 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les réseaux embarqués, au même titre que les réseaux de distribution, subissent de profondes mutations dues à l'essor de l'électronique de puissance. La tendance est claire : la puissance doit être intégrée au maximum sous forme électrique aux dépens de l'hydraulique et de la mécanique. Cette intégration de puissance est rendue possible par l'utilisation de convertisseurs d'électronique de puissance, fiables, modulaires et garantissant une grande souplesse de fonctionnement. C'est ce qui se passe actuellement pour les avions civils gros porteurs. L'insertion massive de ces convertisseurs dans les réseaux embarqués pose cependant quelques problèmes, principalement à cause la prolifération des harmoniques et à l'introduction de nouvelles dynamiques. Pour pouvoir quantifier et s'affranchir de ces problèmes, on doit utiliser des méthodes d'analyse et de conception adaptées. Dans ce contexte, le premier chapitre du mémoire fait un tour d'horizon de l'évolution des réseaux embarqués au cours des dernières décennies. Dans la deuxième partie, une méthodologie de conception des systèmes embarqués est proposée. Les deux chapitres suivants sont les premières applications de la méthodologie dans le contexte du contrat européen Power Optimized Aircraft. L'un est consacré à l'étud dynamique d'un système embarqué haute tension continue. L'approche modale, couplée au modèle moyen généralisé, est détaillée. L'accent est particulièrement mis sur les facteurs de participation et de sensibilité. Le dernier chapitre concerne la dépollution harmonique optimale où l'on propose de minimiser le volume des organes de filtrage par l'intermédiaire d'optimisations sous contraintes.

Download or read book M thodologie de Conception de Syst mes Embarqu s written by Manai-Y and published by Omn.Univ.Europ.. This book was released on 2018-02-28 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les travaux d velopp s dans ce livre concernent l' tude des syst mes embarqu s dont les sp cificit s sont d taill es: h t rog n it des composants constituants, embarquement et int gration dans un syst me complet, sp cification suivant les applications impl ment es et les aspects conomiques. Ces travaux ont permis, en particulier, de d gager quelques principaux probl mes apparaissant dans la conception des syst mes embarqu s, savoir le partitionnement du syst me entre les aspects mat riels et logiciels, ainsi que les tapes de v rification et de validation indispensables au passage la phase de raffinement et d'impl mentation. Le processus de conception appara t ainsi fractionn en plusieurs phases dont chacune requiert une validation locale avant la validation globale du syst me complet, rendant ainsi difficile sa v rification fonctionnelle et temporelle. Cette complexit a conduit proposer une nouvelle m thodologie de conception ainsi de d veloppement d'un outil bas sur le concept orient objet et utilisant l'approche Design Pattern afin de r soudre galement le probl me de la r utilisation d' l ments tels que les blocs IP mat riels et logiciels.

Download or read book Your Mindful Compass written by Andrea Maloney Schara and published by . This book was released on 2013-12-01 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Your Mindful Compass" takes us behind the emotional curtain to see the mechanisms regulating individuals in social systems. There is great comfort and wisdom in knowing we can increase our awareness to manage the swift and ancient mechanisms of social control. We can gain greater flexibility by seeing how social controls work in systems from ants to humans. To be less controlled by others, we learn how emotional systems influence our relationship-oriented brain. People want to know what goes on in families that give rise to amazing leaders and/or terrorists. For the first time in history we can understand the systems in which we live. The social sciences have been accumulating knowledge since the early fifties as to how we are regulated by others. S. Milgram, S. Ashe, P. Zimbardo and J. Calhoun, detail the vulnerability to being duped and deceived and the difficulty of cooperating when values differ. Murray Bowen, M.D., the first researcher to observe several live-in families, for up to three years, at the National Institute of Mental Health. Describing how family members overly influence one another and distribute stress unevenly, Bowen described both how symptoms and family leaders emerge in highly stressed families. Our brain is not organized to automatically perceive that each family has an emotional system, fine-tuned by evolution and "valuing" its survival as a whole, as much as the survival of any individual. It is easier to see this emotional system function in ants or mice but not in humans. The emotional system is organized to snooker us humans: encouraging us to take sides, run away from others, to pressure others, to get sick, to blame others, and to have great difficulty in seeing our part in problems. It is hard to see that we become anxious, stressed out and even that we are difficult to deal with. But "thinking systems" can open the doors of perception, allowing us to experience the world in a different way. This book offers both coaching ideas and stories from leaders as to strategies to break out from social control by de-triangling, using paradoxes, reversals and other types of interruptions of highly linked emotional processes. Time is needed to think clearly about the automatic nature of the two against one triangle. Time and experience is required as we learn strategies to put two people together and get self outside the control of the system. In addition, it takes time to clarify and define one's principles, to know what "I" will or will not do and to be able to take a stand with others with whom we are very involved. The good news is that systems' thinking is possible for anyone. It is always possible for an individual to understand feelings and to integrate them with their more rational brains. In so doing, an individual increases his or her ability to communicate despite misunderstandings or even rejection from important others. The effort involved in creating your Mindful Compass enables us to perceive the relationship system without experiencing it's threats. The four points on the Mindful Compass are: 1) Action for Self, 2) Resistance to Forward Progress, 3) Knowledge of Social Systems and the 4) The Ability to Stand Alone. Each gives us a view of the process one enters when making an effort to define a self and build an emotional backbone. It is not easy to find our way through the social jungle. The ability to know emotional systems well enough to take a position for self and to become more differentiated is part of the natural way humans cope with pressure. Now people can use available knowledge to build an emotional backbone, by thoughtfully altering their part in the relationship system. No one knows how far one can go by making an effort to be more of a self-defined individual in relationships to others. Through increasing emotional maturity, we can find greater individual freedom at the same time that we increase our ability to cooperate and to be close to others.

Download or read book Analysis and Control of Linear Systems written by Philippe de Larminat and published by John Wiley & Sons. This book was released on 2013-03-01 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: Automation of linear systems is a fundamental and essential theory. This book deals with the theory of continuous-state automated systems.

Download or read book ESA Bulletin written by European Space Agency and published by . This book was released on 1993 with total page 1006 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dimensionless Physical Quantities in Science and Engineering written by Josef Kunes and published by Elsevier. This book was released on 2012-02-13 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dimensionless quantities, such as p, e, and f are used in mathematics, engineering, physics, and chemistry. In recent years the dimensionless groups, as demonstrated in detail here, have grown in significance and importance in contemporary mathematical and computer modeling as well as the traditional fields of physical modeling. This book offers the most comprehensive and up to date resource for dimensionless quantities, providing not only a summary of the quantities, but also a clarification of their physical principles, areas of use, and other specific properties across multiple relevant fields. Presenting the most complete and clearly explained single resource for dimensionless groups, this book will be essential for students and researchers working across the sciences. Includes approximately 1,200 dimensionless quantities Features both classic and newly developing fields Easy to use with clear organization and citations to relevant works

Download or read book High Temperature Electronics written by F. Patrick McCluskey and published by CRC Press. This book was released on 1996-12-13 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of electronics that can operate at high temperatures has been identified as a critical technology for the next century. Increasingly, engineers will be called upon to design avionics, automotive, and geophysical electronic systems requiring components and packaging reliable to 200 °C and beyond. Until now, however, they have had no single resource on high temperature electronics to assist them. Such a resource is critically needed, since the design and manufacture of electronic components have now made it possible to design electronic systems that will operate reliably above the traditional temperature limit of 125 °C. However, successful system development efforts hinge on a firm understanding of the fundamentals of semiconductor physics and device processing, materials selection, package design, and thermal management, together with a knowledge of the intended application environments. High Temperature Electronics brings together this essential information and presents it for the first time in a unified way. Packaging and device engineers and technologists will find this book required reading for its coverage of the techniques and tradeoffs involved in materials selection, design, and thermal management and for its presentation of best design practices using actual fielded systems as examples. In addition, professors and students will find this book suitable for graduate-level courses because of its detailed level of explanation and its coverage of fundamental scientific concepts. Experts from the field of high temperature electronics have contributed to nine chapters covering topics ranging from semiconductor device selection to testing and final assembly.

Download or read book Speed Management written by European Conference of Ministers of Transport and published by OECD Publishing. This book was released on 2006-10-13 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Speeding is the number one road safety problem in a large number of OECD/ECMT countries. It is responsible for around one third of the current, unacceptably high levels of road fatalities. Speeding has an impact not only on accidents but also on the ...

Download or read book Faecal Sludge Management written by Linda Strande and published by IWA Publishing. This book was released on 2014-08-15 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is estimated that literally billions of residents in urban and peri-urban areas of Africa, Asia, and Latin America are served by onsite sanitation systems (e.g. various types of latrines and septic tanks). Until recently, the management of faecal sludge from these onsite systems has been grossly neglected, partially as a result of them being considered temporary solutions until sewer-based systems could be implemented. However, the perception of onsite or decentralized sanitation technologies for urban areas is gradually changing, and is increasingly being considered as long-term, sustainable options in urban areas, especially in low- and middle-income countries that lack sewer infrastructures. This is the first book dedicated to faecal sludge management. It compiles the current state of knowledge of the rapidly evolving field of faecal sludge management, and presents an integrated approach that includes technology, management, and planning based on Sandecs 20 years of experience in the field. Faecal Sludge Management: Systems Approach for Implementation and Operation addresses the organization of the entire faecal sludge management service chain, from the collection and transport of sludge, and the current state of knowledge of treatment options, to the final end use or disposal of treated sludge. The book also presents important factors to consider when evaluating and upscaling new treatment technology options. The book is designed for undergraduate and graduate students, and engineers and practitioners in the field who have some basic knowledge of environmental and/or wastewater engineering.

Download or read book Vulnerable written by Colleen M. Flood and published by University of Ottawa Press. This book was released on 2020-07-14 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt: The novel coronavirus SARS-CoV-2, which causes the disease known as COVID-19, has infected people in 212 countries so far and on every continent except Antarctica. Vast changes to our home lives, social interactions, government functioning and relations between countries have swept the world in a few months and are difficult to hold in one’s mind at one time. That is why a collaborative effort such as this edited, multidisciplinary collection is needed. This book confronts the vulnerabilities and interconnectedness made visible by the pandemic and its consequences, along with the legal, ethical and policy responses. These include vulnerabilities for people who have been harmed or will be harmed by the virus directly and those harmed by measures taken to slow its relentless march; vulnerabilities exposed in our institutions, governance and legal structures; and vulnerabilities in other countries and at the global level where persistent injustices harm us all. Hopefully, COVID-19 will forces us to deeply reflect on how we govern and our policy priorities; to focus preparedness, precaution, and recovery to include all, not just some. Published in English with some chapters in French.

Download or read book Sensorless Vector and Direct Torque Control written by Peter Vas and published by Oxford, [Eng.] ; New York : Oxford University Press. This book was released on 1998 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first comprehensive book on sensorless high performance a.c. drives. It is essential reading for anyone interestred in acquiring a solid background on sensorless torque-controlled drives. It presents a detailed and unified treatment of sensorless vector-controlled and direct-torque controlled drive systems. It also discusses the applications of artificial intelligence to drives. Where possible, space vector theory is used and emphasis is laid on detailed mathematical and physical analysis. Sensorless drive schemes for different types of permanent magnet synchronous motors, synchronous reluctance motors, and induction motors are also presented. These include more than twenty vector drives e.g. five types of MRAS-based vector drives, and eleven types of direct-torque-controlled (DTC) drives, e.g. the ABB DTC drive. However, torque-controlled switched reluctance motor drives are also discussed due to their emerging importance. The book also covers various drive applications using artificial intelligence (fuzzy logic, neural networks, fuzzy-neural networks) and AI-based modelling of electrical machines. Finally, self-commissioning techniques are also discussed. This is a comprehensive thoroughly up-to-date, and self-contained book suitable for students at various levels, teachers, and industrial readership. Peter Vas is a Professor at the Department of Engineering at the University of Aberdeen, UK, where he is also the Head of the Intelligent Motion Control Group. His previous books published by Oxford University Press are extensively used worldwide.

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 Cybersemiotics written by Søren Brier and published by University of Toronto Press. This book was released on 2008-01-01 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cybersemiotics not only builds a bridge between science and culture, it provides a framework that encompasses them both.