Une approche orientee objet dans la simulation des systemes dynamiques semi-continus PDF Download
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Author: Siriki Traoré
Publisher:
ISBN:
Category :
Languages : fr
Pages : 0
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Book Description
Author: Siriki Traoré
Publisher:
ISBN:
Category :
Languages : fr
Pages : 0
Get Book Here
Book Description
Author: SIRIKI.. TRAORE
Publisher:
ISBN:
Category :
Languages : fr
Pages : 236
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Book Description
LE TRAVAIL PRESENTE ICI CONCERNE LA SIMULATION DES SYSTEMES HYBRIDES. IL S'AGIT PRINCIPALEMENT D'ETUDIER LA FAISABILITE D'UNE APPROCHE ORIENTEE OBJET A TRAVERS: 1) UNE REVUE DE L'ETAT DE L'ART, 2) UNE ETUDE APPROFONDIE DES DIFFERENTS PROBLEMES QUI SE POSENT DANS CETTE APPROCHE, 3) UNE PROPOSITION DE REALISATION, BASEE SUR UNE MAQUETTE COMPOSEE D'UN INTERPRETEUR DE DIALOGUE ORIENTE OBJET, RELIE AU SOLVEUR SIRENA. LA PREMIERE PARTIE EXPLICITE LA NOTION DE SYSTEMES DYNAMIQUES SEMI-CONTINUS EN REPLACANT CES SYSTEMES DANS LE CONTEXTE DES MODELES HABITUELLEMENT MANIPULES PAR LES AUTOMATICIENS (EQUATIONS DIFFERENTIELLES, TRANSFORMEES DE LAPLACE OU EN Z, GRAPHES D'ETAT, RESEAUX DE PETRI OU GRAFCET). LA SECONDE PARTIE ABORDE LES PROBLEMES DE FOND QU'IL EST NECESSAIRE DE RESOUDRE POUR ATTEINDRE L'OBJECTIF FIXE, A SAVOIR: 1) LES PROBLEMES DE STRUCTURATION DU MODELE DANS L'APPROCHE OBJET, 2) LES PROBLEMES LIES A L'ASPECT HYBRIDE ET EN PARTICULIER AUX CHANGEMENTS DE STRUCTURE DU MODELE CONTINU, INDUITS PAR L'EVOLUTION DE LA PARTIE DISCRETE. ON S'INTERESSE ALORS AUX PROBLEMES DE CAUSALITE ET AU CALCUL DES CONDITIONS INITIALES. LA REPRESENTATION PAR BOND GRAPH UTILISEE POUR SERVIR DE BASE AU RAISONNEMENT PERMET DE PROPOSER DES SOLUTIONS. LA TROISIEME PARTIE PRESENTE LA PARTIE APPLICATIVE, D'UNE PART A TRAVERS UNE LARGE ETUDE DES ALGORITHMES UTILISES DANS LES SOLVEURS EXISTANT ET D'AUTRE PART A TRAVERS LA PRESENTATION DE L'OUTIL PROPOSE ET DE SON APPLICATION
Author: Sebastian Engell
Publisher: Elsevier
ISBN: 9780080440941
Category : Science
Languages : en
Pages : 406
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Book Description
Before the Riders came to their remote valley the Yendri led a tranquil pastoral life. When the Riders conquered and enslaved them, only a few escaped to the forests. Rebellion wasn't the Yendri way; they hid, or passively resisted, taking consolation in the prophecies of their spiritual leader. Only one possessed the necessary rage to fight back: Gard the foundling, half-demon, who began a one-man guerrilla war against the Riders. His struggle ended in the loss of the family he loved, and condemnation from his own people. Exiled, he was taken as a slave by powerful mages ruling an underground kingdom. Bitterer and wiser, he found more subtle ways to earn his freedom. This is the story of his rise to power, his vengeance, his unlikely redemption and his maturation into a loving father--as well as a lord and commander of demon armies. Kage Baker, author of the popular and witty fantasy, The Anvil of the World, returns to that magical world for another story of love, adventure, and a fair bit of ironic humor. At the publisher's request, this title is being sold without Digital Rights Management software (DRM) applied.
Author: Mohammed Teggar
Publisher:
ISBN:
Category :
Languages : fr
Pages : 131
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Book Description
De nouveaux concepts et techniques de modélisation et de simulation ont été introduits ces dernières années. Une des caractéristiques essentielles de ces concepts, est l'utilisation de formalismes fondés sur des notions mathématiques. En effet, un grand pas a été accompli dans ce sens concernant notamment la modélisation des systèmes à évènements discrets. Cependant, de nombreux systèmes combinent des fonctionnements de types continus, discrets et évènementiels. L'entreprise de modélisation et de simulation de ces systèmes reste difficile du fait de la complexité d'interaction entre les trois modes de fonctionnement. Notre contribution, en l'absence d'un outils de simulation adapte à ce type de systèmes est : 1- de proposer une approche de modélisation dont l'objectif est d'utiliser une structure formelle unique pour la spécification des systèmes dont les états évoluent de façon continue, discrète et sur l'occurrence d'évènements 2- d'implémenter une stratégie de simulation basée sur la théorie des systèmes en utilisant les concepts de l'oriente objet. La stratégie de simulation est conçue de façon à permettre une description modulaire et hiérarchique du modèle. 3- de synchroniser les interactions entre la partie continue et la partie discrète du simulateur en introduisant le concept de temps logique dans les mécanismes de synchronisation par messages.
Author: Hermann Weyl
Publisher: Princeton University Press
ISBN: 1400874343
Category : Mathematics
Languages : en
Pages : 176
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Book Description
Symmetry is a classic study of symmetry in mathematics, the sciences, nature, and art from one of the twentieth century's greatest mathematicians. Hermann Weyl explores the concept of symmetry beginning with the idea that it represents a harmony of proportions, and gradually departs to examine its more abstract varieties and manifestations—as bilateral, translatory, rotational, ornamental, and crystallographic. Weyl investigates the general abstract mathematical idea underlying all these special forms, using a wealth of illustrations as support. Symmetry is a work of seminal relevance that explores the great variety of applications and importance of symmetry.
Author: Michel Étienne
Publisher: Springer Science & Business Media
ISBN: 9401785570
Category : Science
Languages : en
Pages : 403
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Book Description
This book introduces the companion modelling approach by presenting the stance that underpins it, the methods and tools used with stakeholders and the specific role of models during the process. It addresses the means to deal with the different levels of decision-making and to take into account the various power relationships. It proposes a methodology to assess the impact of the approach on the stakeholders involved in the process. The book includes 27 case studies and 7 teaching tools that describe the successful use of the approach in a variety of settings or teaching contexts. It is intended for researchers working on rural development or renewable resources management, as well as students and teachers.
Author: Pascal Le Masson
Publisher: Springer
ISBN: 3319502778
Category : Technology & Engineering
Languages : en
Pages : 390
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Book Description
This textbook presents the core of recent advances in design theory and its implications for design methods and design organization. Providing a unified perspective on different design methods and approaches, from the most classic (systematic design) to the most advanced (C-K theory), it offers a unique and integrated presentation of traditional and contemporary theories in the field. Examining the principles of each theory, this guide utilizes numerous real life industrial applications, with clear links to engineering design, industrial design, management, economics, psychology and creativity. Containing a section of exams with detailed answers, it is useful for courses in design theory, engineering design and advanced innovation management. "Students and professors, practitioners and researchers in diverse disciplines, interested in design, will find in this book a rich and vital source for studying fundamental design methods and tools as well as the most advanced design theories that work in practice". Professor Yoram Reich, Tel Aviv University, Editor-in-Chief, Research In Engineering Design. "Twenty years of research in design theory and engineering have shown that training in creative design is indeed possible and offers remarkably operational methods - this book is indispensable for all leaders and practitioners who wish to strengthen theinnovation capacity of their company." Pascal Daloz, Executive Vice President, Dassault Systèmes
Author: Wesley C. Salmon
Publisher: University of Pittsburgh Press
ISBN: 0822973022
Category : Philosophy
Languages : en
Pages : 253
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Book Description
As Aristotle stated, scientific explanation is based on deductive argument-yet, Wesley C. Salmon points out, not all deductive arguments are qualified explanations. The validity of the explanation must itself be examined. Four Decades of Scientific Explanation provides a comprehensive account of the developments in scientific explanation that transpired in the last four decades of the twentieth century. It continues to stand as the most comprehensive treatment of the writings on the subject during these years.Building on the historic 1948 essay by Carl G. Hempel and Paul Oppenheim, "Studies in the Logic of Explanation," which introduced the deductive-nomological (D-N) model on which most work on scientific explanation was based for the following four decades, Salmon goes beyond this model's inherent basis of describing empirical knowledge to tells us "not only what, but also why." Salmon examines the predominant models in chronological order and describes their development, refinement, and criticism or rejection.Four Decades of Scientific Explanation underscores the need for a consensus of approach and ongoing evaluations of methodology in scientific explanation, with the goal of providing a better understanding of natural phenomena.
Author: Canada. Department of Fisheries and Oceans
Publisher: Peches Et Oceans Direction Generale Des Communications = Fisheries and Oceans Communications Dir
ISBN:
Category : Science
Languages : fr
Pages : 376
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Book Description
Proceedings of a workshop, the scientific reviews and the contributed papers presented at the symposium. The document presents a brief historical summary of marine research in the Gulf; reports the discussions, conclusions and recommendations of the different working groups on oceanography (physics, biology, chemistry and sedimentology) and on the fishery (fish and invertebrates); then presents the discussions of each multidisciplinary working group, centered around how the St. Lawrence system may be used as a natural laboratory which will contribute to the solution of major long-term problems of conservation of natural resources and of the quality of the environment.
Author: Michael Jones
Publisher: Springer Science & Business Media
ISBN: 9048199328
Category : Science
Languages : en
Pages : 327
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Book Description
This important and insightful book provides, for the first time, a broad presentation of ongoing research into public participation in landscape conservation, management and planning, following the 2000 European Landscape Convention which came into force in 2004. The book examines both the theory of participation and what lessons can be learnt from specific European examples. It explores in what manner and to what extent the provisions for participation in the European Landscape Convention have been followed up and implemented. It also presents and compares different experiences of participation in selected countries from northern, southern, eastern and western Europe, and provides a critical examination of public participation in practice. However, while the book’s focus is necessarily on Europe, many of the conclusions drawn are of global relevance. The book provides a valuable reference for researchers and advanced students in landscape policies and management, as well as for professionals and others interested in land-use planning and environmental management.
