Download or read book L Application de la commande adaptative certaines classes de syst mes nonlin aires written by Hongbing Zhang and published by . This book was released on 1993 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE TRAVAIL SE SITUE DANS LE CADRE DE L'APPLICATION DE LA COMMANDE ADAPTATIVE A CERTAINS SYSTEMES NON LINEAIRES, PLUS PARTICULIEREMENT AUX SYSTEMES ROBOTIQUES ET AUX ALTERNATEURS. NOUS NOUS SOMMES INTERESSES A DES METHODES DE LA COMMANDE ADAPTATIVE QUI PEUVENT ETRE REELLEMENT EXPLOITEES POUR LES PROCESSUS INDUSTRIELS TOUT EN PRESERVANT LA STABILITE DU SYSTEME. NOUS PRESENTONS LA PARAMETRISATION MINIMALE POUR LE SYSTEME ROBOTIQUE. CECI NOUS PERMET DE REDUIRE LE NOMBRE DE CALCUL A LA METHODE DU REGROUPEMENT DES PARAMETRES QUI ELIMINE CEUX N'AFFECTANT PAS LA DYNAMIQUE DU ROBOT. SUITE A UNE ANALYSE COMPLETE DE LA MATRICE QUI DETERMINE LA RICHESSE DE LA TRAJECTOIRE DU ROBOT, NOUS AVONS PROUVE QUE LA CONVERGENCE DES PARAMETRES MINIMAUX EST PLUS FACILEMENT OBTENUE QUE CELLE DES PARAMETRES NON MINIMAUX. ENFIN, LA DERNIERE PARTIE DE CE TRAVAIL DONNE UNE APPLICATION REELLE DE LA COMMANDE ADAPTATIVE EFFECTUEE DANS UNE USINE DE FABRICATION DES CONTROLEURS D'ALTERNATEUR. EN EFFET, APRES LA COMPARAISON DES PLUSIEURS METHODES, NOUS EN AVONS RETENU UNE QUI GARDE AUSSI BIEN LA STABILITE DU SYSTEME QUE LA QUANTITE DU CALCUL PERMETTANT D'IMPLANTER CETTE METHODE. DES TESTS REALISES SUR SITE NOUS MONTRENT UNE NETTE AMELIORATION DE LA PERFORMANCE DU SYSTEME

Download or read book ADAPTATIVE CONTROL OF MULTIVARIABLE LINEAR SYSTEMS written by Luc Dugard and published by . This book was released on 1984 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: ETUDE DES SCHEMAS DE COMMANDE ADAPTATIVE POUR LES SYSTEMES LINEAIRES INVARIANTS DANS LE TEMPS. ON PRESENTE QUELQUES METHODES D'ANALYSE ET DE SYNTHESE ET DES SCHEMAS DE COMMANDE POUR LES SYSTEMES MONOVARIABLES. ON ETUDIE ENSUITE LES SYSTEMES MULTIVARIABLES EN PRESENTANT DES NOTIONS ESSENTIELLES TELLES QUE LA MATRICE INTERACTEUR. ON DEVELOPPE QUELQUES SCHEMAS DE COMMANDE POUR DES SYSTEMES NON DECOUPABLES PAR RETOUR D'ETAT, EN MINIMISANT LES HYPOTHESES DE CONNAISSANCE A PRIORI SUR LA MATRICE INTERACTEUR. ON PRESENTE EGALEMENT L'ETAT DE L'ART EN COMMANDE ADAPTATIVE MULTIVARIABLE

Download or read book Dynamique Non lin aire Et Le Chaos written by and published by . This book was released on 1993 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal of Dynamic Systems Measurement and Control written by and published by . This book was released on 1974 with total page 996 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optimization Optimal Control and Partial Differential Equations written by Viorel Barbu and published by Springer Science & Business Media. This book was released on 1992 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Variational methods in mechanics and physical models.- Fluid flows in dielectric porous media.- The impact of a jet with two fluids on a porous wall.- Critical point methods in nonlinear eigenvalue problems with discontinuities.- Maximum principles for elliptic systems.- Exponential dichotomy of evolution operators in Banach spaces.- Asymptotic properties of solutions to evolution equations.- On some nonlinear elastic waves biperiodical or almost periodical in mechanics and extensions hyperbolic nonlinear partial differential equations.- The controllability of infinite dimensional and distributed parameter systems.- Singularities in boundary value problems and exact controllability of hyperbolic systems.- Exact controllability of a shallow shell model.- Inverse problem: Identification of a melting front in the 2D case.- Micro-local approach to the control for the plates equation.- Bounded solutions for controlled hyperbolic systems.- Controllability and turbulence.- The H? control problem.- The H? boundary control with state feedback; the hyperbolic case.- Remarks on the theory of robust control.- The dynamic programming method.- Optimality and characteristics of Hamilton-Jacobi-Bellman equations.- Verification theorems of dynamic programming type in optimal control.- Isaacs' equations for value-functions of differential games.- Optimal control for robot manipulators.- Control theory and environmental problems: Slow fast models for management of renewable ressources.- On the Riccati equations of stochastic control.- Optimal control of nonlinear partial differential equations.- A boundary Pontryagin's principle for the optimal control of state-constrained elliptic systems.- Controllability properties for elliptic systems, the fictitious domain method and optimal shape design problems.- Optimal control for elliptic equation and applications.- Inverse problems for variational inequalities.- The variation of the drag with respect to the domain in Navier-Stokes flow, .- Mathematical programming and nonsmooth optimization.- Scalar minimax properties in vectorial optimization.- Least-norm regularization for weak two-level optimization problems.- Continuity of the value function with respect to the set of constraints.- On integral inequalities involving logconcave functions.- Numerical solution of free boundary problems in solids mechanics.- Authors' index

Download or read book Terra 2008 written by Leslie Rainer and published by Getty Publications. This book was released on 2011-06-14 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthen architecture constitutes one of the most diverse forms of cultural heritage and one of the most challenging to preserve. It dates from all periods and is found on all continents but is particularly prevalent in Africa, where it has been a building tradition for centuries. Sites range from ancestral cities in Mali to the palaces of Abomey in Benin, from monuments and mosques in Iran and Buddhist temples on the Silk Road to Spanish missions in California. This volume's sixty-four papers address such themes as earthen architecture in Mali, the conservation of living sites, local knowledge systems and intangible aspects, seismic and other natural forces, the conservation and management of archaeological sites, research advances, and training.

Download or read book Airborne Early Warning Radar written by William C. Morchin and published by . This book was released on 1990 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first chapters introduce the subject and define the nature of the targets that radar is expected to detect and track and the natural environment--the atmosphere and clutter with which radar must deal. Subsequent chapters are devoted to the analysis and design formulation of airborne early warning radars. Emphasis is on information appropriate to radar bands that are conventionally used or considered for long-range surveillance. Annotation copyrighted by Book News, Inc., Portland, OR

Download or read book Fields Medallists Lectures written by Michael Atiyah and published by World Scientific. This book was released on 1997-10-13 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the Fields Medal does not have the same public recognition as the Nobel Prizes, they share a similar intellectual standing. It is restricted to one field - that of mathematics - and an age limit of 40 has become an accepted tradition. Mathematics has in the main been interpreted as pure mathematics, and this is not so unreasonable since major contributions in some applied areas can be (and have been) recognized with Nobel Prizes. The restriction to 40 years is of marginal significance, since most mathematicians have made their mark long before this age.A list of Fields Medallists and their contributions provides a bird's eye view of mathematics over the past 60 years. It highlights the areas in which, at various times, greatest progress has been made. This volume does not pretend to be comprehensive, nor is it a historical document. On the other hand, it presents contributions from 22 Fields Medallists and so provides a highly interesting and varied picture.The contributions themselves represent the choice of the individual Medallists. In some cases the articles relate directly to the work for which the Fields Medals were awarded. In other cases new articles have been produced which relate to more current interests of the Medallists. This indicates that while Fields Medallists must be under 40 at the time of the award, their mathematical development goes well past this age. In fact the age limit of 40 was chosen so that young mathematicians would be encouraged in their future work.The Fields Medallists' Lectures is now available on CD-ROM. Sections can be accessed at the touch of a button, and similar topics grouped together using advanced keyword searches.

Download or read book Fruit flies of economic importance 84 written by C.V. Cavalloro and published by CRC Press. This book was released on 1986-06-01 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of a meeting organised by the Commission of the European Communities and the International Organisation for Biological ad Integrated Control. It includes full communications by experts from 17 different countries and 3 international organisations. The work of the IOBC/WPRS Working Group 'Fruit flies of economic importance is also reported.

Download or read book Strap down Inertial Systems written by and published by . This book was released on 1978 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis and Optimization of Systems written by Alain Bensoussan and published by . This book was released on 1986 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preference Learning written by Johannes Fürnkranz and published by Springer Science & Business Media. This book was released on 2010-11-19 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: The topic of preferences is a new branch of machine learning and data mining, and it has attracted considerable attention in artificial intelligence research in previous years. It involves learning from observations that reveal information about the preferences of an individual or a class of individuals. Representing and processing knowledge in terms of preferences is appealing as it allows one to specify desires in a declarative way, to combine qualitative and quantitative modes of reasoning, and to deal with inconsistencies and exceptions in a flexible manner. And, generalizing beyond training data, models thus learned may be used for preference prediction. This is the first book dedicated to this topic, and the treatment is comprehensive. The editors first offer a thorough introduction, including a systematic categorization according to learning task and learning technique, along with a unified notation. The first half of the book is organized into parts on label ranking, instance ranking, and object ranking; while the second half is organized into parts on applications of preference learning in multiattribute domains, information retrieval, and recommender systems. The book will be of interest to researchers and practitioners in artificial intelligence, in particular machine learning and data mining, and in fields such as multicriteria decision-making and operations research.

Download or read book Past Im Perfect Continuous written by Alice Balestrino and published by Sapienza Università Editrice. This book was released on 2021-06-25 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Past (Im)perfect Continuous. Trans-Cultural Articulations of the Postmemory of WWII presents an international and interdisciplinary approach to the comprehension of the postmemory of WWII, accounting for a number of different intellectual trajectories that investigate WWII and the Holocaust as paradigms for other traumas within a global and multidirectional context. Indeed, by exceeding the geographical boundaries of nations and states and overcoming contextual specificities, postmemory foregrounds continuous, active, connective, transcultural, and always imperfect representations of violence that engage with the alterity of other histories and other subjects. 75 years after the end of WWII, this volume is primarily concerned with the convergence between postmemory and underexamined aspects of the history and aftermath of WWII, as well as with several sociopolitical anxieties and representational preoccupations. Drawing from different disciplines, the critical and visual works gathered in this volume interrogate the referential power of postmemory, considering its transcultural interplay with various forms, media, frames of reference, conceptual registers, and narrative structures.

Download or read book Integrated Design and Manufacturing in Mechanical Engineering written by Patrick Chedmail and published by Springer. This book was released on 2012-11-05 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the selected papers of the first I.D.M.M.E. conference on 'Integrated Design and Manufacturing in Mechanical Engineering', held in Nantes from 15-17 April 1996. Its objective was to discuss the questions related to the definition of the optimal design and manufacturing processes and to their integration through coherent methodologies in adapted environments. The initiative of the Conference and the organization thereof, is mainly due to the efforts of the french PRIMECA group (Pool of Computer Resources for Mechanics) started eight years ago. We were able to attract the internationru community with the support of the International Institution for Production Engineering Research (C.I.R.P.). The conference brought together two hundred and fifty specialists from around the world. About ninety papers and twenty posters were presented covering three main topics : optimization and evaluation of the product design process, optimization and evaluation of the manufacturing systems and methodological aspects.

Download or read book Airplane Design VII written by Jan Roskam and published by DARcorporation. This book was released on 1985 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optimal Shape Design for Elliptic Systems written by O. Pironneau and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of optimal shape design can be arrived at by asking the following question: "What is the best shape for a physical system?" This book is an applications-oriented study of such physical systems; in particular, those which can be described by an elliptic partial differential equation and where the shape is found by the minimum of a single criterion function. There are many problems of this type in high-technology industries. In fact, most numerical simulations of physical systems are solved not to gain better understanding of the phenomena but to obtain better control and design. Problems of this type are described in Chapter 2. Traditionally, optimal shape design has been treated as a branch of the calculus of variations and more specifically of optimal control. This subject interfaces with no less than four fields: optimization, optimal control, partial differential equations (PDEs), and their numerical solutions-this is the most difficult aspect of the subject. Each of these fields is reviewed briefly: PDEs (Chapter 1), optimization (Chapter 4), optimal control (Chapter 5), and numerical methods (Chapters 1 and 4).

Download or read book Language and Identity in Cyberspace written by Alexandra Cotoc and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: