Download or read book D veloppement d un outil d aide en simulation acoustique architecturale adaptable un syst me de mod lisation C A O written by Stylianos Kouzeleas and published by . This book was released on 2002 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le travail de recherche présenté dans cette thèse a pour objectif le rapprochement de l'aménagement et de la simulation acoustique avec la conception architecturale afin de donner les moyens à l'architecte d'apprécier et évaluer les résultats acoustiques, de lui faciliter la collaboration avec l'acousticien et enfin lui offrir une base d'aide pendant sa conception architecturale en vue de simulation acoustique. Ceci est proposé à travers la mise en oeuvre d'une plate-forme d'aide adaptable à un logiciel de modélisation architecturale C.A.O. intégrant des moteurs de calcul acoustique, des modules graphiques et un certain nombre de recherches ici développées. Ces recherches concernent entre autre la définition de différents processus de modélisation et simplification des modèles architecturaux en vue de simulation acoustique, la traduction des résultats acoustiques de manière architecturale, l'intégration d'une démarche architecturale dans l'aménagement acoustique et une base de données acoustique multimédia intégrée.
Download or read book MODELISATION DES ETUDES ACOUSTIQUES AU COURS DU PROCESSUS DE CONCEPTION DES BATIMENTS INTEGRATION DANS UN SYSTEME DE C A O MULTITECHNIQUE written by MICHEL.. KARROUM and published by . This book was released on 1994 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'OBJECTIF DE NOS TRAVAUX EST D'INTEGRER LES ACTIVITES DE LA CONCEPTION ACOUSTIQUE DE BATIMENT AU SEIN D'UN SYSTEME CAO DE BATIMENT MULTITECHNIQUE ET EVOLUTIF. IL S'AGIT DE PROPOSER DES OUTILS D'AIDE A LA CONCEPTION ET DES SCHEMAS CONCEPTUELS PERMETTANT L'IMPLEMENTATION DES ASPECTS ACOUSTIQUES DANS UN ENVIRONNEMENT INFORMATIQUE DE C.A.O. BATIMENT. NOUS ANALYSONS LE PROCESSUS DE LA CONCEPTION ACOUSTIQUE DE BATIMENT EN METTANT L'ACCENT SUR LA NECESSITE DE CONSIDERER LES ASPECTS ACOUSTIQUE DEPUIS LES PHASES LES PLUS PRECOCES DU PROCESSUS DE CONCEPTION. LES OBJECTIFS DE LA CONCEPTION ACOUSTIQUE AINSI QUE LES MOYENS PERMETTANT DE LES ATTEINDRE SONT IDENTIFIES EN FONCTION DU NIVEAU DE CONCEPTION. LES INTERACTIONS POUVANT AVOIR LIEU ENTRE LE SOUS-SYSTEME ACOUSTIQUE ET LES AUTRES SOUS-SYSTEMES TECHNIQUES COMPOSANT LE SYSTEME BATIMENT SONT EGALEMENT ABORDEES. NOUS ELABORONS ENSUITE LES OUTILS ET SCHEMAS CONCEPTUELS NECESSAIRES A LA MISE EN UVRE DE LA COMPOSANTE ACOUSTIQUE DANS UN ENVIRONNEMENT DE C.A.O. BATIMENT. DES OUTILS SUR LE SAVOIR-FAIRE DE CONCEPTEURS SONT PROPOSES POUR EVALUER LES PERFORMANCES ACOUSTIQUES D'UN BATIMENT AUX STADES PRECOCES DE LA CONCEPTION. ENFIN POUR DEFINIR L'ARCHITECTURE INFORMATIQUE, NOUS PROCEDONS A UNE ANALYSE STRUCTURELLE ET FONCTIONNELLE DE LA COMPOSANTE. NOUS METTONS EN EVIDENCE LA NECESSITE D'UTILISER UN SYSTEME A BASE DE CONNAISSANCES POUR L'IMPLEMENTATION PHYSIQUE DE LA COMPOSANTE ACOUSTIQUE. PUIS, NOUS DECRIVONS L'INTEGRATION DE LA COMPOSANTE ACOUSTIQUE DANS UN SYSTEME MULTITECHNIQUE DE C.A.O. DE BATIMENT NOMME CONCEPTOR ET NOUS EXPOSONS LE FONCTIONNEMENT ET LES DIFFERENTES STRATEGIES D'UTILISATION DE LA COMPOSANTE ACOUSTIQUE SUR DES EXEMPLES
Download or read book R ussir l acoustique d un b timent written by Loïc Hamayon and published by Le Moniteur Editions. This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: La reussite acoustique d'un batiment depend de sa conception architecturale, de sa conception technique et de la qualite de son execution. L'objectif de cet ouvrage pratique et pedagogique est de fournir les moyens de repondre aux cahiers des charges acoustiques. La prise en compte du developpement durable dans les projets de batiments et l'amelioration de la reglementation thermique ont des incidences sur les exigences acoustiques des batiments. Cette 3e edition tient compte de ces nouveaux parametres en s'enrichissant de plusieurs chapitres sur: - la haute qualite environnementale; - les materiaux ecologiques; - les constructions en bois; - la rehabilitation, pour chaque type de bruit; - des elements complementaires d'acoustique; - une etude de cas reel de logements en bordure de voie de chemin de fer. Articule en quatre parties (bruits aeriens, bruits solidiens, bruits d'equipements, correction acoustique), cet ouvrage propose des techniques innovantes appropriees a chaque cas. Dans chaque chapitre, apres un rappel succinct de la reglementation et des principes generaux, de nombreuses solutions sont presentees par type de bruit et par type de construction et d'ouvrage. Elles peuvent etre architecturales (disposition des locaux, etc.), techniques (nature et composition des parois ou des materiaux, etc.), ou les deux. Largement illustre, ce guide fournit des exemples de calcul, des tableaux de conversion et des abaques qui facilitent l'utilisation des formules. Ce savoir-faire pratique est complete par les references des textes reglementaires. Ce livre est un outil d'aide a la conception destine aux maitres d'ouvrage, aux maitres d'oeuvre, ainsi qu'aux techniciens et ingenieurs des bureaux d'etudes ou de controle.
Download or read book ARCHITECTURE MODULAIRE POUR LA CONCEPTION DE SYSTEMES EXPERTS D ASSISTANCE A LA MODELISATION MATHEMATIQUE written by LEYLA.. ALEM and published by . This book was released on 1991 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE THESE S'INSCRIT DANS LE DOMAINE DE L'INTELLIGENCE ARTIFICIELLE APPLIQUEE AU PROBLEME DE LA MODELISATION DE SYSTEMES DYNAMIQUES. NOUS DECRIVONS L'ARCHITECTURE D'UN GENERATEUR DE SYSTEMES EXPERTS D'AIDE A LA MODELISATION: SAMMED, BASE SUR UNE REPRESENTATION CENTREE-OBJET (SHIRKA). NOTRE OBJECTIF EST DE FOURNIR UNE REELLE ASSISTANCE AU COURS DE PROCESSUS DE MODELISATION. DANS CETTE OPTIQUE NOUS PROPOSONS UNE METHODOLOGIE DE MODELISATION PRECONISANT L'EMPLOI DE MODELES DE NATURES DIFFERENTS ET DE NIVEAUX D'ABSTRACTION CROISSANTS, DU QUALITATIF VERS LE QUANTITATIF VIA LE MODELE STRUCTUREL. UNE ANALYSE DE L'ACTIVITE DE L'UTILISATEUR NON-EXPERT NOUS A PERMIS DE SPECIFIER L'ARCHITECTURE DU SAMMED PRENANT EN COMPTE LES BESOINS EN TERME DE CONNAISSANCES DE L'UTILISATEUR. L'ARCHITECTURE DU SYSTEME EST MODULAIRE, ELLE EST CONSTITUEE PRINCIPALEMENT D'UN MODULE DE CONNAISSANCE STRUCTURE EN PLUSIEURS NIVEAUX, D'UN MODULE D'ASSISTANCE AXE SUR LE CONCEPT DE TACHE ET DE MODULES EXTERIEURS (BIBLIOTHEQUES SCIENTIFIQUES). LA PRISE EN COMPTE DE L'UTILISATEUR LORS DE LA CONCEPTION DE LA BASE DE CONNAISSANCE SE TRADUIT PAR LA PRESENCE DE TACHES NON-EXPERTES DE RECHERCHE D'INFORMATION AINSI QUE DE CRITERES DE CLASSIFICATION DE CONCEPTS SELON UN POINT DE VUE NON-EXPERT. UN EXEMPLE D'APPLICATION DE SAMMED EST DONNE, OU NOUS PRESENTONS EDORA UN SYSTEME D'AIDE A LA MODELISATION EN BIOLOGIE. CEPENDANT, UN SYSTEME INTELLIGENT D'ASSISTANCE DEVRAIT AUSSI PERMETTRE L'ACQUISITION PAR L'UTILISATEUR D'UN SAVOIR SUPPLEMENTAIRE AU COURS DE L'INTERACTION. NOUS PRESENTONS LES CONCEPTS DE BASE D'UN MODELE DE TACHE DONT LE BUT EST D'ASSURER L'APPRENTISSAGE DE L'UTILISATEUR PAR L'ACTION. L'INTEGRATION D'UN MODELE D'APPRENTISSAGE AU SEIN DU SYSTEME EXPERT DEVRAIT PERMETTRE LA CONCEPTION DE SYSTEMES PERFORMANTS D'ASSISTANCE
Download or read book Etude des syst mes actifs de contr le de l acoustique des salles written by Olivier Vuichard and published by . This book was released on 1997 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE TRAVAIL S'INTERESSE AUX SYSTEMES ELECTROACOUSTIQUES DE CONTROLE DE LA REVERBERATION UTILISES DANS LES SALLES DE SPECTACLES AFIN DE MODULER LEURS CARACTERISTIQUES ACOUSTIQUES SELON LE TYPE DE SPECTACLE. IL EST CENTRE SUR L'APPLICATION DU MUR ACTIF A CE TYPE DE SYSTEMES. UNE MISE EN OEUVRE SIMPLIFIEE, FAISANT APPEL A UN DECOUPLAGE ACOUSTIQUE DE L'ONDE DIRECTE DU HAUT-PARLEUR VERS LE MICROPHONE ASSOCIE SITUE A PROXIMITE, EST PRESENTEE. LE SYSTEME BASE SUR CE PRINCIPE EST APPELE SYSTEME REGENERATIF A REACTION QUASI-LOCALE, ET LES RESULTATS OBTENUS DANS TROIS SALLES OU IL FUT INSTALLE PERMETTENT DE LE VALIDER. PARALLELEMENT, DES DEVELOPPEMENTS THEORIQUES ET NUMERIQUES SONT PRESENTES. ILS VISENT A UNIFIER ET CLARIFIER LES DIFFERENTES FORMULATIONS RENCONTREES DANS LA LITTERATURE COURANTE, ET A DEVELOPPER CERTAINS POINTS CONCERNANT EN PARTICULIER LA POSITION DES MICROPHONES PAR RAPPORT AUX HAUT-PARLEURS DU SYSTEME ET PAR RAPPORT A LA SCENE, OU L'UTILISATION DE REVERBERATION ELECTRONIQUE. ILS NOUS PERMETTENT D'EXPLIQUER DANS QUELLES LIMITES PEUVENT FONCTIONNER LES DIFFERENTES FAMILLES DE SYSTEMES, ET NOTAMMENT LES SYSTEMES A REACTION QUASI-LOCALE. CERTAINS ASPECTS CONNEXES A CES SYSTEMES SONT EGALEMENT DEVELOPPES. UNE ETUDE MONTRE QUE LE CONTROLE DE L'ENERGIE PRECOCE PAR UN SYSTEME DE REVERBERATION ASSISTEE EST RELATIVEMENT LIMITE (UNE AUGMENTATION MAXIMALE DE 10% DE L'INTELLIGIBILITE PEUT ETRE OBTENUE SOUS CERTAINES CONDITIONS). UN JEU D'INDICES PERMETTANT DE CARACTERISER OBJECTIVEMENT LA COLORATION DU SON LIE AU REBOUCLAGE ACOUSTIQUE EST PROPOSE, ET SA PERTINENCE EST VALIDEE PAR UNE ETUDE PERCEPTIVE. ENFIN, DE NOMBREUX ASPECTS PRATIQUES CONCERNANT L'INSTALLATION D'UN SYSTEME SONT DISCUTES. UN PANORAMA DES DIFFERENTES METHODES DE SIMULATION DE SALLES EQUIPEES D'UN SYSTEME DE REVERBERATION ASSISTEE EST EXPOSE. UN SIMULATEUR, DIT EXACT, A ETE DEVELOPPE. IL PERMET D'APPRECIER SUBJECTIVEMENT (AURALISATIONS) L'INSTALLATION D'UN SYSTEME DANS UNE SALLE EXISTANTE OU EN PROJET.
Download or read book Advances in Rotorcraft Technology written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Flight Vehicle Integration Panel. Symposium and published by . This book was released on 1997 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 2018 Conference on Design of Circuits and Integrated Systems DCIS written by IEEE Staff and published by . This book was released on 2018-11-14 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: DCIS is an international meeting for researchers in the highly active fields of micro and nano electronic circuits and integrated systems It provides an excellent forum to present and discuss works on the emerging challenges offered by technology, in the areas of modeling, design, implementation and test of devices, circuits and systems New topics related to emerging technologies, security and new computing paradigms and hardware such as Machine Learning will be included in the 2018 edition
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1993 with total page 1528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Model Based Systems Engineering with OPM and SysML written by Dov Dori and published by Springer. This book was released on 2016-06-01 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: Model-Based Systems Engineering (MBSE), which tackles architecting and design of complex systems through the use of formal models, is emerging as the most critical component of systems engineering. This textbook specifies the two leading conceptual modeling languages, OPM—the new ISO 19450, composed primarily by the author of this book, and OMG SysML. It provides essential insights into a domain-independent, discipline-crossing methodology of developing or researching complex systems of any conceivable kind and size. Combining theory with a host of industrial, biological, and daily life examples, the book explains principles and provides guidelines for architecting complex, multidisciplinary systems, making it an indispensable resource for systems architects and designers, engineers of any discipline, executives at all levels, project managers, IT professional, systems scientists, and engineering students.
Download or read book Nonlinear Programming written by Dimitri P. Bertsekas and published by Goodman Publishers. This book was released on 1999 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ungovernable Society written by Grégoire Chamayou and published by Polity. This book was released on 2021-05-03 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rebellion was in the air. Workers were on strike, students were demonstrating on campuses, discipline was breaking down. No relation of domination was left untouched – the relation between the sexes, the racial order, the hierarchies of class, relationships in families, workplaces and colleges. The upheavals of the late 1960s and early 1970s quickly spread through all sectors of social and economic life, threatening to make society ungovernable in the eyes of ruling elites. This crisis was also the birthplace of the authoritarian liberalism which continues to cast its shadow across the world in which we now live. To ward off the threat, new arts of government were devised in business-related circles, which included a war against the trade unions, the primacy of shareholder value and a dethroning of politics. The neoliberalism that thus began its triumphal march was not, however, determined by a simple ‘state phobia’ and a desire to free up the economy from government interference. On the contrary, the strategy for overcoming the crisis of governability consisted in an authoritarian liberalism in which the liberalization of society went hand-in-hand with new forms of power imposed from above: a ‘strong state’ for a ‘free economy’ became the new magic formula of our capitalist societies. Grégoire Chamayou analyses this crisis as it was perceived and theorized in the 1970s by those who strove to defend the interests of business – that is, the ruling elites, especially in the United States, from which a far-reaching intellectual and political movement spread. The new arts of government they devised are still with us today and we can understand their nature and lasting influence only by re-examining the history of the conflicts that brought them into being.
Download or read book Physical Properties of Amorphous Materials written by David Adler and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Institute for Amorphous Studies was founded in 1982 as the international center for the investigation of amorphous mate rials. It has since played an important role in promoting the und er standing of disordered matter in general. An Institute lecture series on "Fundamentals of Amorphous Materials and Devices" was held during 1982-83 with distinguished speakers from universities and industry. These events were free and open to the public ,and were attended by many representatives of the scientific community. The lectures themselves were highly successful inasmuch as they provided not only formal instruction but also an opportunity for vigorous and stimulating debate. That last element could not be captured within the pages of a book I but the lectures concentrated on the latest advances in the field I which is why their essential contents are he re reproduced in collective form. Together they constitute an interdisciplinary status report of the field. The speakers brought many different viewpoints and a variety of back ground experiences io bear on the problems involved I but though language and conventions vary I the essential unity of the concerns is very clear I as indeed are the ultimate benefits of the many-sided approach.
Download or read book A Practical Guide to SysML written by Sanford Friedenthal and published by Morgan Kaufmann. This book was released on 2009-08-25 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Practical Guide to SysML: The Systems Modeling Language is a comprehensive guide to SysML for systems and software engineers. It provides an advanced and practical resource for modeling systems with SysML. The source describes the modeling language and offers information about employing SysML in transitioning an organization or project to model-based systems engineering. The book also presents various examples to help readers understand the OMG Systems Modeling Professional (OCSMP) Certification Program. The text is organized into four parts. The first part provides an overview of systems engineering. It explains the model-based approach by comparing it with the document-based approach and providing the modeling principles. The overview of SYsML is also discussed. The second part of the book covers a comprehensive description of the language. It discusses the main concepts of model organization, parametrics, blocks, use cases, interactions, requirements, allocations, and profiles. The third part presents examples that illustrate how SysML supports different model-based procedures. The last part discusses how to transition and deploy SysML into an organization or project. It explains the integration of SysML into a systems development environment. Furthermore, it describes the category of data that are exchanged between a SysML tool and other types of tools, and the types of exchange mechanisms that can be used. It also covers the criteria that must be considered when selecting a SysML. Software and systems engineers, programmers, IT practitioners, experts, and non-experts will find this book useful.*The authoritative guide for understanding and applying SysML*Authored by the foremost experts on the language*Language description, examples, and quick reference guide included
Download or read book Scientific Canadian Mechanics Magazine and Patent Office Record written by Canada. Patent Office and published by . This book was released on 1966-03 with total page 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flight Formation Control written by Josep M. Guerrero and published by John Wiley & Sons. This book was released on 2012-12-17 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last decade the development and control of Unmanned Aerial Vehicles (UAVs) has attracted a lot of interest. Both researchers and companies have a growing interest in improving this type of vehicle given their many civilian and military applications. This book presents the state of the art in the area of UAV Flight Formation. The coordination and robust consensus approaches are presented in detail as well as formation flight control strategies which are validated in experimental platforms. It aims at helping students and academics alike to better understand what coordination and flight formation control can make possible. Several novel methods are presented: - controllability and observability of multi-agent systems; - robust consensus; - flight formation control; - stability of formations over noisy networks; which generate solutions of guaranteed performance for UAV Flight Formation. Contents 1. Introduction, J.A. Guerrero. 2. Theoretical Preliminaries, J.A. Guerrero. 3. Multiagent Coordination Strategies, J.A. Guerrero, R. Lozano, M.W. Spong, N. Chopra. 4. Robust Control Design for Multiagent Systems with Parametric Uncertainty, J.A. Guerrero, G. Romero. 5. On Adaptive and Robust Controlled Synchronization of Networked Robotic Systems on Strongly Connected Graphs, Y.-C. Liu, N. Chopra. 6. Modeling and Control of Mini UAV, G. Flores Colunga, J.A. Guerrero, J. Escareño, R. Lozano. 7. Flight Formation Control Strategies for Mini UAVs, J.A. Guerrero. 8. Formation Based on Potential Functions, L. García, A. Dzul. 9. Quadrotor Vision-Based Control, J.E. Gomez-Balderas, J.A. Guerrero, S. SALAZAR, R. Lozano, P. Castillo. 10. Toward Vision-Based Coordination of Quadrotor Platoons, L.R. García Carrillo, J.A. Guerrero, R. Lozano. 11. Optimal Guidance for Rotorcraft Platoon Formation Flying in Wind Fields, J.A. Guerrero, Y. Bestaoui, R. Lozano. 12. Impact of Wireless Medium Access Protocol on the Quadrotor Formation Control, J.A. Guerrero, Y. Challal, P. Castillo. 13. MAC Protocol for Wireless Communications, A. Mendez, M. Panduro, O. Elizarraras, D. Covarrubias. 14. Optimization of a Scannable Pattern for Bidimensional Antenna Arrays to Provide Maximum Performance, A. Reyna, M.A. Panduro, A. Mendez.
Download or read book Food Fray written by Lisa H. WEASEL Ph.D. and published by AMACOM Div American Mgmt Assn. This book was released on 2008-12-10 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: More than ten years ago, the first genetically modified foods took their place on the shelves of American supermarkets. But while American consumers remained blissfully unconcerned with the new products that suddenly filled their kitchens, Europeans were much more wary of these “Frankenfoods.” When famine struck Africa in 2002, several nations refused shipments of genetically modified foods, fueling a controversy that put the issue on the world's political agenda for good. In Food Fray, esteemed molecular biologist Dr. Lisa H. Weasel brings readers into the center of this debate, capturing the real-life experiences of the scientists, farmers, policymakers and grassroots activists on the front lines. Here she combines solid scientific knowledge and a gripping narrative to tell the real story behind the headlines and the hype. Seminal and cutting-edge, Food Fray enlightens and informs and will allow readers to make up their own minds about one of the most important issues facing us today.
Download or read book Parallel Scientific Computing written by Frédéric Magoules and published by John Wiley & Sons. This book was released on 2016-01-26 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientific computing has become an indispensable tool in numerous fields, such as physics, mechanics, biology, finance and industry. For example, it enables us, thanks to efficient algorithms adapted to current computers, to simulate, without the help of models or experimentations, the deflection of beams in bending, the sound level in a theater room or a fluid flowing around an aircraft wing. This book presents the scientific computing techniques applied to parallel computing for the numerical simulation of large-scale problems; these problems result from systems modeled by partial differential equations. Computing concepts will be tackled via examples. Implementation and programming techniques resulting from the finite element method will be presented for direct solvers, iterative solvers and domain decomposition methods, along with an introduction to MPI and OpenMP.
