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Commande Adaptative Indirecte Des Systemes Lineaires Sans Lintroduction Des Signaux Dexcitation
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Book Synopsis Commande adaptative indirecte des systemes lineaires sans l'introduction des signaux d'excitation by : Dionisio Antonio Suarez-Cerda
Download or read book Commande adaptative indirecte des systemes lineaires sans l'introduction des signaux d'excitation written by Dionisio Antonio Suarez-Cerda and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Commande adaptative indirecte des systèmes linéaires sans l'introduction des signaux d'excitation by : Dionisio Antonio Suarez-Cerda
Download or read book Commande adaptative indirecte des systèmes linéaires sans l'introduction des signaux d'excitation written by Dionisio Antonio Suarez-Cerda and published by . This book was released on 1996 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans cette thèse, nous avons exploite les propriétés de l'inverse de la matrice de covariance de la méthode d'estimation des moindres carrés pour résoudre certains problèmes de commande adaptative. Ces propriétés sont une alternative plus pratique que celle de l'application d'excitation permanente dans les schémas de commande adaptative. Le mécanisme consiste à trouver une projection des estimes de façon à ce que les paramètres utilisés, lors de la synthèse de la loi de commande, respectent la structure du procédé. Dans le premier des algorithmes, nous traitons le problème de relaxation de la connaissance a priori de la borne supérieure de la perturbation qui agit sur un système linéaire qui peut être à déphasage non minimal. La projection nous permet de garantir la stabilité et la convergence de tous les signaux de la boucle fermée, et d'assurer que le comportement du système adaptatif est à la limite celui d'un système qui a ses pôles placés à des positions choisies librement par l'utilisateur. Dans le second algorithme présenté, le mécanisme d'adaptation a comme fonction celle d'améliorer la performance transitoire des systèmes positifs réels. Le schéma employé est un schéma qui possède des excellentes propriétés de robustesse même dans sa version non adaptative. Il s'agit d'un régulateur LQG-dissipatif en boucle fermée avec le système positif réel. Ce schéma est toujours stable. Ainsi la fonction de l'adaptation n'est pas celle de stabiliser la boucle fermée mais d'améliorer la performance transitoire. A cet effet, nous utilisons la projection de paramètres afin de garantir à chaque instant l'existence d'un régulateur LQG-dissipatif.
Book Synopsis COMMANDE ADAPTATIVE DES SYSTEMES A DEPHASAGE NON-MINIMAL by : XIAO HUI.. ZHAO
Download or read book COMMANDE ADAPTATIVE DES SYSTEMES A DEPHASAGE NON-MINIMAL written by XIAO HUI.. ZHAO and published by . This book was released on 1993 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: LA COMMANDE ADAPTATIVE DES SYSTEMES A DEPHASAGE NON-MINIMAL QUI UTILISE LA TECHNIQUE DE PLACEMENT DES POLES EST UNE APPROCHE PERMETTANT D'ATTAQUER LE PROBLEME DE COMPENSATION DES POLES ET ZEROS DANS LE CAS D'UN SYSTEME A PARAMETRES INCONNUS. ON PEUT RENCONTRER DES PROBLEMES DES SINGULARITES DANS LA LOI DE COMMANDE, PLUS PRECISEMENT LE MODELE ESTIME DU SYSTEME PEUT DEVENIR NON COMMANDABLE, LORSQUE L'EXCITATION SUR LE SYSTEME N'EST PAS SUFFISAMMENT RICHE, ET EN CONSEQUENCE L'ENTREE DE COMMANDE NE PEUT PAS ETRE CALCULEE. ON SAIT QUE CES PROBLEMES SONT TRES IMPORTANTS, SIGNIFICATIFS, ET INTERESSANTS DANS LE DEVELOPPEMENT DE LA THEORIE DE LA COMMANDE ADAPTATIVE. CETTE THESE PRESENTE UN SCHEMA DE COMMANDE ADAPTATIVE DE PLACEMENT DES POLES POUR LES SYSTEMES LINEAIRES, NON NECESSAIREMENT A MINIMUM DE PHASE. LE SCHEMA DE COMMANDE REALISE ASYMPTOTIQUEMENT LE PLACEMENT DES POLES ADAPTATIFS SANS INTRODUIRE LES SIGNAUX D'EXCITATION PERSISTANTE DANS LES SYSTEMES ET SANS SUPPOSER AUCUNE CONNAISSANCE A PRIORI SUR LES PARAMETRES DU SYSTEME. L'ORDRE DU SYSTEME EST LA SEULE CONNAISSANCE A PRIORI NECESSAIRE POUR CONSTRUIRE LA LOI DE COMMANDE ADAPTATIVE. NOTRE LOI DE COMMANDE ADAPTATIVE ELIMINE LES SINGULARITES DANS LE SENS QUE LE MODELE DU SYSTEME ESTIME EST TOUJOURS COMMANDABLE. LES SINGULARITES SONT SURMONTEES PAR UNE MODIFICATION CONVENABLE DES PARAMETRES ESTIMES QUI EST BASEE SUR LES PROPRIETES DE LA MATRICE DE COVARIANCE DE L'ALGORITHME DES MOINDRES CARRES. L'ANALYSE DE LA STABILITE ET DE LA CONVERGENCE GLOBALE DES SYSTEMES EN BOUCLE FERMEE SONT DONNEES EN DETAIL POUR LES SYSTEMES DISCRETS ET LES SYSTEMES CONTINUS. NOUS AVONS MONTRE L'UTILITE ET L'EFFICACITE DE CETTE TECHNIQUE POUR RESOUDRE LES PROBLEMES DES SINGULARITES. NEANMOINS, NOTRE APPROCHE RESTE NON OPTIMALE DANS LE SENS DE LA LOURDEUR DU CALCUL QU'ELLE NECESSITE
Book Synopsis Dynamique Non-linéaire Et Le Chaos by :
Download or read book Dynamique Non-linéaire 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 ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Book Synopsis Before We Visit the Goddess by : Chitra Banerjee Divakaruni
Download or read book Before We Visit the Goddess written by Chitra Banerjee Divakaruni and published by Simon and Schuster. This book was released on 2017-04-25 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A new novel from the author of Oleander Girl, a novel in stories, built around crucial moments in the lives of 3 generations of women in an Indian/Indian-American Family"--
Book Synopsis Narratives of Fear and Safety by : Kaisa Kaukiainen
Download or read book Narratives of Fear and Safety written by Kaisa Kaukiainen and published by . This book was released on 2020 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: The essays in this edited volume, written in English and French, tackle the intriguing problems of fear and safety by analysing their various meanings and manifestations in literature and other narrative media. The articles bring forth new, cross-cultural interpretations on fear and safety through examining what kinds of genre-specific means of world-making narratives use to express these two affectivities. The articles also show how important it is to study these themes in order to understand challenges in times of global threats, such as the climate crisis, and - to imagine a better future. The main themes of the book are approached from various theoretical perspectives as related to their literary and cultural representations. Recent trends in research, such as affect and risk theory, serve as the basis for the discussion. Many of the articles in the volume discuss apocalyptic and dystopian narratives that currently permeate the entire cultural landscape. Dystopian narratives do not only deal with future threats, such as totalitarianism, technocracy, or environmental disasters, but also suggest alternative ways of being and new hopes in the form of political resistance. The articles in the volume also draw from disciplines such as gender studies and trauma studies to examine the threats posed by collective fears and aggression on individuals' lives and propose ways of coping with fear. These themes are addressed also in articles analysing new adaptations of old myths that retell stories of the past.
Book Synopsis Mechanical Vibration by : William John Palm
Download or read book Mechanical Vibration written by William John Palm and published by . This book was released on 2007 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt: Model, analyze, and solve vibration problems, using modern computer tools. Featuring clear explanations, worked examples, applications, and modern computer tools, William Palm's Mechanical Vibration provides a firm foundation in vibratory systems. You'll learn how to apply knowledge of mathematics and science to model and analyze systems ranging from a single degree of freedom to complex systems with two and more degrees of freedom. Separate MATLAB sections at the end of most chapters show how to use the most recent features of this standard engineering tool, in the context of solving vibration problems. The text introduces Simulink where solutions may be difficult to program in MATLAB, such as modeling Coulomb friction effects and simulating systems that contain non-linearities. Ample problems throughout the text provide opportunities to practice identifying, formulating, and solving vibration problems. KEY FEATURES Strong pedagogical approach, including chapter objectives and summaries Extensive worked examples illustrating applications Numerous realistic homework problems Up-to-date MATLAB coverage The first vibration textbook to cover Simulink Self-contained introduction to MATLAB in Appendix A Special section dealing with active vibration control in sports equipment Special sections devoted to obtaining parameter values from experimental data
Book Synopsis Second International Conference on Artificial Neural Networks, 18-20 November 1991 by :
Download or read book Second International Conference on Artificial Neural Networks, 18-20 November 1991 written by and published by . This book was released on 1991 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Second International Conference on Artificial Neural Networks was held November 1991 in the UK. Among the topics: theory, implementations, images, engineering applications, dynamical systems, control and robotics, hybrids, speech and natural language, medical applications, character recognition. No index. Annotation copyrighted by Book News, Inc., Portland, OR.
Download or read book Turbulent Mirror written by John Briggs and published by HarperCollins Publishers. This book was released on 1989 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores the many faces of chaos and reveals how its laws direct most of the familiar processes of everyday life.
Book Synopsis Nordic Narratives of Nature and the Environment by : Reinhard Hennig
Download or read book Nordic Narratives of Nature and the Environment written by Reinhard Hennig and published by Rowman & Littlefield. This book was released on 2020-07-06 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many contemporary environmental risks and global environmental changes occurring today are unprecedented in the history of human life on earth. However, the images and narratives through which humans relate to these phenomena are built on existing cultural tropes and narrative models. Cultural, social, and historical contexts strongly influence how we construct images and narratives of nature and the environment. It is therefore highly important to study such narratives in works of literature, film, and other forms of cultural expression in relation to the specific circumstances from which they arise. Nordic Narratives of Nature and the Environment is the first English language anthology that presents ecocritical research on northern European literatures and cultures. The contributors examine specifically Nordic narratives of nature and the environment, with a focus on the cultures and literatures of the modern northern European countries Denmark, Finland, Norway, and Sweden, including Sápmi, which is the land traditionally inhabited by the indigenous Sami people. Covering northern European literatures and cultures over a period of more than two centuries, this anthology provides substantial insights into both old and new narratives of nature and the environment as well as intertextual relations, the variety of cultural traditions, and current discourses connected to the Nordic environmental imagination. Case studies relating to works of literature, film, and other media shed new light on the role of culture, history and society in the formation of narratives of nature and the environment, and offer a comprehensive and multi-faceted overview of the most recent ecocritical research in Scandinavian studies.
Book Synopsis The End of the World by : Marcia Sa Cavalcante Schuback
Download or read book The End of the World written by Marcia Sa Cavalcante Schuback and published by Rowman & Littlefield. This book was released on 2017-03-29 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume attempts to show that it is vital that we address the motif of the 'end' in contemporary world – but that this cannot be done without thinking it anew.
Book Synopsis Forest Fire Research by : Universidade de Coimbra
Download or read book Forest Fire Research written by Universidade de Coimbra and published by . This book was released on 2010 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experiences of Depression by : Matthew Ratcliffe
Download or read book Experiences of Depression written by Matthew Ratcliffe and published by International Perspectives in. This book was released on 2015 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiences of Depression is a philosophical exploration of what it is like to be depressed. In this important new book, Matthew Ratcliffe develops a detailed account of depression experiences by drawing on work in phenomenology, philosophy of mind, and several other disciplines. In so doing, he makes clear how phenomenological research can contribute to psychiatry, by helping us to better understand patients' experiences, as well as informing classification, diagnosis, and treatment. Throughout the book, Ratcliffe also emphasizes the relevance of depression to philosophical enquiry. He proposes that, by reflecting on how experiences of depression differ from 'healthy' forms of experience, we can refine our understanding of both. Hence phenomenological research of this kind has much wider applicability. He further shows how the study of depression experiences can inform philosophical approaches to a range of topics, including interpersonal understanding and empathy, free will, the experience of time, the nature of emotion and feeling, what it is to believe something, and what it is to hope. This book will be of interest to anyone seeking to understand and relate to experiences of depression, including philosophers, psychiatrists, clinical psychologists, therapists, and those who have been directly or indirectly affected by depression.
Book Synopsis Cognitive Literary Science by : Michael Burke
Download or read book Cognitive Literary Science written by Michael Burke and published by Oxford University Press. This book was released on 2016-12-01 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together researchers with cognitive-scientific and literary backgrounds to present innovative research in all three variations on the possible interactions between literary studies and cognitive science. The tripartite structure of the volume reflects a more ambitious conception of what cognitive approaches to literature are and could be than is usually encountered, and thus aims both to map out and to advance the field. The first section corresponds to what most people think of as "cognitive poetics" or "cognitive literary studies": the study of literature by literary scholars drawing on cognitive-scientific methods, findings, and/or debates to yield insights into literature. The second section demonstrates that literary scholars needn't only make use of cognitive science to study literature, but can also, in a reciprocally interdisciplinary manner, use a cognitively informed perspective on literature to offer benefits back to the cognitive sciences. Finally, the third section, "literature in cognitive science", showcases some of the ways in which literature can be a stimulating object of study and a fertile testing ground for theories and models, not only to literary scholars but also to cognitive scientists, who here engage with some key questions in cognitive literary studies with the benefit of their in-depth scientific knowledge and training.
Download or read book Anxiety written by S Rachman and published by Psychology Press. This book was released on 2013-08-21 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anxiety is a complex phenomenon and a central feature of many psychological problems. This thoroughly revised edition of Anxiety has been updated to include astonishing developments in the in the clinical implementation of knowledge about anxiety. In particular, this edition updates the reader with: A new chapter on health anxiety A fully updated chapter on obsessive compulsive disorders, including the concept of mental contamination and the causes of obsessions An account of advances in therapeutic techniques. Unique in combining an introduction to the subject with comprehensive coverage of the latest developments in research and practice, this book provides excellent breadth and depth of coverage which all practicing and trainee clinical psychologists, and students of clinical psychology, will find extremely informative.
Download or read book Cultures of Fear written by Uli Linke and published by Pluto Press. This book was released on 2009-12-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Cultures of Fear, a truly world-class line up of scholars explore how governments use fear in order to control their citizens. The "social contract" gives modern states responsibility for the security of their citizens, but this collection argues that governments often nurture a culture of fear within their contries. When people are scared of "terrorist" threats, or "alarming rises" in violent crime they are more likely to accept oppressive laws from their rulers. Cultures of Fear is and interdisciplinary reader for students of anthropology and politics. Contributors include Noam Chomsky, Slavoj Zizek, Jean Baudrillard, Catharine MacKinnon, Neil Smith, Cynthia Enloe, David L. Altheide, Cynthia Cockburn and Carolyn Nordstrum.
