Download or read book Commandes optimales en temps pour des syst mes diff rentiellement plats written by Côme Raczy and published by . This book was released on 1997 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: POUR QU'UN DISPOSITIF AUTOMATIQUE (UN ROBOT INDUSTRIEL PAR EXEMPLE) AIT UN BON RENDEMENT, IL FAUT LUI FOURNIR DES COMMANDES PROCHES DES SOLUTIONS OPTIMALES POUR L'INDEX DE PERFORMANCE RETENU. CET INDEX PEUT REPRESENTER PAR EXEMPLE LA CONSOMMATION D'ENERGIE OU LA DUREE NECESSAIRE POUR AMENER LE DISPOSITIF DANS L'ETAT FINAL SOUHAITE. PAR AILLEURS, POUR ASSURER UN BON FONCTIONNEMENT, LE SYSTEME DOIT VERIFIER UN ENSEMBLE DE CONTRAINTES QUI TRADUISENT LA SOLIDITE DES MATERIAUX EMPLOYES, LA PUISSANCE DES MOTEURS, ETC. BIEN QU'IL EXISTE DES METHODES GENERALES POUR CALCULER DES COMMANDES OPTIMALES, AVEC DES CONTRAINTES SUR L'ETAT DU SYSTEME, LE PROBLEME RESTE OUVERT POUR DE NOMBREUSES APPLICATIONS CAR CERTAINES NOTIONS SONT DIFFICILES A PRENDRE EN COMPTE. C'EST LE CAS, EN PARTICULIER, LORSQU'ON SOUHAITE PRODUIRE DES COMMANDES LISSES POUR EVITER L'APPARITION DE VIBRATIONS PARASITES. DE PLUS, LES SOLUTIONS GENERALES SONT PEU ALGORITHMIQUES: ELLES REPOSENT SUR DES CALCULS NUMERIQUES QUI PENALISENT LES TEMPS DE CALCUL ET LA FIABILITE DES RESULTATS. IL EST DONC NECESSAIRE DE DEFINIR DES METHODES QUI TIRENT PROFIT DES SPECIFICITES DES SYSTEMES TRAITES, CE QUI EST FAIT DANS CETTE ETUDE. L'OBJECTIF EST DE PROPOSER UNE METHODE DE CALCUL DE COMMANDES OPTIMALES EN TEMPS POUR LES SYSTEMES DIFFERENTIELLEMENT PLATS. LES PROPRIETES DE CES SYSTEMES PERMETTENT DE DECOMPOSER LE PROBLEME EN DEUX ETAPES DISTINCTES: LE CHOIX D'UN CHEMIN GEOMETRIQUE POUR UNE VARIABLE PARTICULIERE LA SORTIE PLATE PUIS LE CALCUL DE LA TRAJECTOIRE OPTIMALE EN TEMPS LE LONG DE CE CHEMIN. CECI SIMPLIFIE CONSIDERABLEMENT LES CALCULS CAR UNE FOIS LE CHEMIN FIXE, TOUS LES CALCULS SONT FAITS DANS UN ESPACE DE DIMENSION 1. LA METHODE PROPOSEE EST UTILISEE POUR DEUX APPLICATIONS. LA PREMIERE CONSISTE A ORIENTER UN SATELLITE AFIN D'EFFECTUER DES PRISES DE VUES DE TRES GRANDE PRECISION. LA SECONDE CONSISTE A DEPLACER UNE CHARGE A L'AIDE D'UNE GRUE EN MAITRISANT LE BALLANT FINAL

Download or read book Advances in the Control of Nonlinear Systems written by Alfonso Banos and published by Springer Science & Business Media. This book was released on 2001-02-19 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is based on the course notes of the 2nd NCN Pedagogical School, the second in the series of Pedagogical Schools in the frame work of the European TMR project, "Breakthrough in the control of nonlinear systems (Nonlinear Control Network)". The school consists of four courses that have been chosen to give a broad range of techniques for the analysis and synthesis of nonlinear control systems, and have been developed by leading experts in the field. The topics covered are: Differential Algebraic Methods in Nonlinear Systems; Nonlinear QFT; Hybrid Systems; Physics in Control. The book has a pedagogical character, and is specially directed to postgraduates in most areas of engineering and applied sciences like mathematics and physics. It will also be of interest to researchers and practitioners needing a solid introduction to the above topics.

Download or read book Commandes optimales en temps pour des systemes differentiellement plats Application aux commandes de satellites et de grues written by Côme Raczy and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Observation and Control for Operator Semigroups written by Marius Tucsnak and published by Springer Science & Business Media. This book was released on 2009-03-13 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book studies observation and control operators for linear systems where the free evolution of the state can be described by an operator semigroup on a Hilbert space. It includes a large number of examples coming mostly from partial differential equations.

Download or read book Dictionary of Building and Civil Engineering written by Don Montague and published by Taylor & Francis. This book was released on 1996 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.

Download or read book Theory and Applications for Control of Aerial Robots in Physical Interaction Through Tethers written by Marco Tognon and published by Springer Nature. This book was released on 2020-06-26 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book studies how autonomous aerial robots physically interact with the surrounding environment. Intended to promote the advancement of aerial physical interaction, it analyzes a particular class of aerial robots: tethered aerial vehicles. By examining specific systems, while still considering the challenges of the general problem, it will help readers acquire the knowledge and expertise needed for the subsequent development of more general methods applicable to aerial physical interaction. The formal analysis covers topics ranging from control, state estimation, and motion planning, to experimental validation. Addressing both theoretical and technical aspects, the book is intended for a broad academic and industrial readership, including undergraduate students, researchers and engineers. It can be used as a teaching reference, or as the basis for product development.

Download or read book Modern Geometry Methods and Applications written by B.A. Dubrovin and published by Springer Science & Business Media. This book was released on 1985-08-05 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Up until recently, Riemannian geometry and basic topology were not included, even by departments or faculties of mathematics, as compulsory subjects in a university-level mathematical education. The standard courses in the classical differential geometry of curves and surfaces which were given instead (and still are given in some places) have come gradually to be viewed as anachronisms. However, there has been hitherto no unanimous agreement as to exactly how such courses should be brought up to date, that is to say, which parts of modern geometry should be regarded as absolutely essential to a modern mathematical education, and what might be the appropriate level of abstractness of their exposition. The task of designing a modernized course in geometry was begun in 1971 in the mechanics division of the Faculty of Mechanics and Mathematics of Moscow State University. The subject-matter and level of abstractness of its exposition were dictated by the view that, in addition to the geometry of curves and surfaces, the following topics are certainly useful in the various areas of application of mathematics (especially in elasticity and relativity, to name but two), and are therefore essential: the theory of tensors (including covariant differentiation of them); Riemannian curvature; geodesics and the calculus of variations (including the conservation laws and Hamiltonian formalism); the particular case of skew-symmetric tensors (i. e.

Download or read book Nocturnal Fabulations written by Érik Bordeleau and published by . This book was released on 2017-03-31 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collective project by Erik Bordeleau, Toni Pape, Ronald Rose-Antoinette and Adam Szymanski is not simply 'about' Apichatpong Weerasethakul, though it does engage his work in detail. It is a book that deeply questions what else might be at stake in setting up the conditions for collaboration across two genres - cinema and writing.

Download or read book MILCOM 2005 written by Institute of Electrical and Electronics Engineers and published by . This book was released on 2005 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Satellite Situation Report written by and published by . This book was released on 1978-12 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Biodiversity and Sustainable Development written by Rabindra Nath Pati and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers presented at the First Global Summit on Sustainable Development and Biodiversity, held at Raipur during 7-9 February 2009.

Download or read book Geosimulation written by Itzhak Benenson and published by John Wiley & Sons. This book was released on 2004-08-20 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geosimulation is hailed as ‘the next big thing’ in geographic modelling for urban studies. This book presents readers with an overview of this new and innovative field by introducing the spatial modelling environment and describing the latest research and development using cellular automata and multi-agent systems. Extensive case studies and working code is available from an associated website which demonstrate the technicalities of geosimulation, and provide readers with the tools to carry out their own modelling and testing. The first book to treat urban geosimulation explicitly, integrating socio-economic and environmental modelling approaches Provides the reader with a sound theoretical base in the science of geosimulation as well as applied material on the construction of geosimulation models Cross-references to an author-maintained associated website with downloadable working code for readers to apply the models presented in the book Visit the Author's Website for further information on Geosimulation, Geographic Automata Systems and Geographic Automata Software http://www.geosimulationbook.com

Download or read book The Algebra of Logic written by Louis Couturat and published by . This book was released on 1911 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Simplexity written by Alain Berthoz and published by Odile Jacob. This book was released on 2018-12-20 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: “Simplexity, as I understand it, is the range of solutions living organisms have found, despite the complexity of natural processes, to enable the brain to prepare an action and plan for the consequences of it. These solutions are simplifying principles that enable the processing of information or situations, by taking into account past experience and anticipating the future. They are neither caricatures, shortcuts, or summaries. They are new ways of asking questions, sometimes at the cost of occasional detours, in order to achieve faster, more elegant, more effective actions.” A. B. As Alain Berthoz demonstrates in this profoundly original book, simplicity is never easy; it requires suppressing, selecting, connecting, thinking, in order to then act in the best way possible. And what if we, in turn, are inspired by the living world to process the complexity that surrounds us? Alain Berthoz is professor at the Collège de France where he is co-director of the Laboratoire de physiologie de la perception et de l’action. [Laboratory for the physiology of perception and action]. He is a member of the French Academy of Sciences, and is the author of Le Sens du mouvement [The Brain's Sense of Movement] and La Décision [Emotion and Reason].