Download or read book Contribution la sp cification et la mise en oeuvre de la commande temps r el de cellules flexibles d assemblage written by Morad Souam and published by . This book was released on 1993 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: La description d'une application de commande temps-réel des cellules flexibles d'assemblage doit prendre en compte les caractères réactif et transformationnel du système ainsi que les contraintes temporelles de fonctionnement. La méthodologie de spécification présentée ici, tient compte de ces trois aspects et intégre d'une part un outil commun synchrone (le grafcet) et d'autre part une stratégie de spécification définie par : a) un ensemble de moyens puissants d'expression des aspects réactif et transformationnel ; b) une méthode de structuration en processus interagissant ; c) une hiérarchisation temporelle des objectifs de commande. Dans le prolongement des travaux de l'adepa, des extensions du grafcet sont proposés. Les algorithmes d'interprétation associés à ces extensions sont considérés dans un chapitre de mise en oeuvre. Ce dernier intégre également les moyens informatiques nécessaires pour l'exécution, dans un contexte centralisé. L'ensemble de la méthodologie est expérimenté avec succès pour l'assemblage de moteurs électriques sur une cellule flexible d'assemblage.
Download or read book Contribution a la specification et a la mise en oeuvre de la commande temps reel de cellules flexibles d assemblage written by Morad Souam and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contribution a la commande et a la surveillance d ateliers flexibles written by Abd-El-Kader Sahraoui and published by . This book was released on 1987 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discussion sur les différentes techniques et concepts de détection et de traitement d'erreurs, sur la conception et la mise en oeuvre de la commande d'ateliers flexibles. Spécification formelle, par réseau de pétri notamment. Approche de spécification et de conception de la surveillance
Download or read book CONTRIBUTION A LA CONCEPTION DE SYSTEMES FLEXIBLES DE PRODUCTION written by VITORIO.. MAZZOLA and published by . This book was released on 1991 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: UN SYSTEME FLEXIBLE DE PRODUCTION EST COMPOSE D'UN ENSEMBLE D'EQUIPEMENTS HETEROGENES QUI COOPERENT POUR LA REALISATION D'UNE TACHE DE FABRICATION DONNEE. LA CONDUITE D'UN TEL SYSTEME, COMPTE TENU DE SA NATURE REPARTIE, DEMANDE DE RESOUDRE TOUT UN ENSEMBLE DE PROBLEMES RELATIFS A LA SYNCHRONISATION ET A L'INTERCONNEXION DE CES EQUIPEMENTS. LES TRAVAUX PRESENTES DANS CE MEMOIRE APPORTENT UNE CONTRIBUTION A L'ETUDE ET A LA CONCEPTION DE SYSTEMES FLEXIBLES DE PRODUCTION. UNE METHODOLOGIE, FONDEE SUR L'UTILISATION DE LA TECHNIQUE DE DESCRIPTION FORMELLE ESTELLE, EST D'ABORD PROPOSEE. ELLE COUVRE LES DIFFERENTES ETAPES DE CONCEPTION D'UNE CELLULE FLEXIBLE D'ASSEMBLAGE, C'EST-A-DIRE DE LA SPECIFICATION INITIALE DE LA TACHE D'ASSEMBLAGE A REALISER JUSQU'A L'IMPLEMENTATION SUR SITE DU SYSTEME DE CONDUITE DE LA CELLULE. CETTE METHODOLOGIE PERMET, DE PLUS, DE VALIDER, AU MOYEN D'UNE TECHNIQUE DE VERIFICATION PAR ABSTRACTION, LES DIFFERENTES ETAPES DE CONCEPTION ET LES DIFFERENTS NIVEAUX DE CONTROLE DU SYSTEME DE CONDUITE (EN PARTICULIER LE GENERATEUR DE PLANS ET LE SYSTEME DE PILOTAGE). L'UTILISATION DE DEUX OUTILS DE SUPPORT A ESTELLE, ESTIM ET EWS, A PERMIS L'AUTOMATISATION DE LA METHODOLOGIE PROPOSEE ET CONDUIT A UNE IMPLEMENTATION OPERATIONNELLE DU SYSTEME DE CONDUITE SUR LA CELLULE FLEXIBLE EXPERIMENTALE DU LAASLLLL/CNRS. EN COMPLEMENT A CETTE ETUDE, ESTELLE A EGALEMENT ETE UTILISEE POUR SPECIFIER ET VALIDER UN PROFIL DE LA NORME MMS (MANUFACTURING MESSAGE SERVICES) DEFINI DE MANIERE A SATISFAIRE LES BESOINS DE COMMUNICATION AU SEIN D'UNE CELLULE FLEXIBLE D'ASSEMBLAGE HETEROGENE
Download or read book Contribution une structure de gestion en temps r el de cellule flexible de production written by Patrick Conesa and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le rôle d'une gestion en temps réel des fonctions annexes de production (ex.: transports, outils) est essentiel dans le cadre d'une cellule flexible. Lors d'une analyse de type GRAI, distinguant composantes physiques, informationnelles et décisionnelles, nous proposons trois modes d'allocation d'une ressource de transport. Soit par classes de déplacements, soit par application de règles de gestion, soit, finalement, par ordonnancement local de l'ensemble instantané des déplacements à l'aide d'une méthode de séparation et évaluation progressive (SEP). L'application de nos méthodes nous a permis d'étendre les fonctionnalités d'un produit industriel de simulation par évènements discrets, SIMUFLEX, logiciel dédié aux cellules flexibles de production. En particulier, nous lui avons adjoint le choix de règles de gestion pour les ressources de stockage, fabrication et transport. La validation des modes d'allocation a fait l'objet d'une étude des résultats de simulation à l'aide d'une méthode d'analyse en composantes principales (ACP). A partir d'un cas réel d'une cellule de polissage du verre, nous avons testé différentes politiques de gestion. Ainsi, nous mettons en évidence l'incidence des choix de gestion sur les performances du système de production.
Download or read book Innovate Bristol written by Sven Boermeester and published by . This book was released on 2019-12 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Innovate Bristol highlights and celebrates those companies and individuals that are actively working at building a better tomorrow for all. Innovation Ecosystems thrive through the involvement and support of companies and individuals from all industries, which is why the Innovate series not only focuses on the innovators but also those people whom the Innovation Ecosystem, would not be able to thrive without.
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 A Body Worth Defending written by Ed Cohen and published by Duke University Press. This book was released on 2009-10-16 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological immunity as we know it does not exist until the late nineteenth century. Nor does the premise that organisms defend themselves at the cellular or molecular levels. For nearly two thousand years “immunity,” a legal concept invented in ancient Rome, serves almost exclusively political and juridical ends. “Self-defense” also originates in a juridico-political context; it emerges in the mid-seventeenth century, during the English Civil War, when Thomas Hobbes defines it as the first “natural right.” In the 1880s and 1890s, biomedicine fuses these two political precepts into one, creating a new vital function, “immunity-as-defense.” In A Body Worth Defending, Ed Cohen reveals the unacknowledged political, economic, and philosophical assumptions about the human body that biomedicine incorporates when it recruits immunity to safeguard the vulnerable living organism. Inspired by Michel Foucault’s writings about biopolitics and biopower, Cohen traces the migration of immunity from politics and law into the domains of medicine and science. Offering a genealogy of the concept, he illuminates a complex of thinking about modern bodies that percolates through European political, legal, philosophical, economic, governmental, scientific, and medical discourses from the mid-seventeenth century through the twentieth. He shows that by the late nineteenth century, “the body” literally incarnates modern notions of personhood. In this lively cultural rumination, Cohen argues that by embracing the idea of immunity-as-defense so exclusively, biomedicine naturalizes the individual as the privileged focus for identifying and treating illness, thereby devaluing or obscuring approaches to healing situated within communities or collectives.
Download or read book Translation and Identity written by Michael Cronin and published by Routledge. This book was released on 2006-09-27 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: Michael Cronin looks at how translation has played a crucial role in shaping debates about identity, language and cultural survival in the past and in the present. He explores how everything from the impact of migration on the curricula for national literature courses, to the way in which nations wage war in the modern era is bound up with urgent questions of translation and identity. Examining translation practices and experiences across continents to show how translation is an integral part of how cultures are evolving, the volume presents new perspectives on how translation can be a powerful tool in enhancing difference and promoting intercultural dialogue. Drawing on a wide range of materials from official government reports to Shakespearean drama and Hollywood films, Cronin demonstrates how translation is central to any proper understanding of how cultural identity has emerged in human history, and suggests an innovative and positive vision of how translation can be used to deal with one of the most salient issues in an increasingly borderless world.
Download or read book Cambridge Handbook of Engineering Education Research written by Aditya Johri and published by Cambridge University Press. This book was released on 2014-02-10 with total page 1124 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Cambridge Handbook of Engineering Education Research is the critical reference source for the growing field of engineering education research, featuring the work of world luminaries writing to define and inform this emerging field. The Handbook draws extensively on contemporary research in the learning sciences, examining how technology affects learners and learning environments, and the role of social context in learning. Since a landmark issue of the Journal of Engineering Education (2005), in which senior scholars argued for a stronger theoretical and empirically driven agenda, engineering education has quickly emerged as a research-driven field increasing in both theoretical and empirical work drawing on many social science disciplines, disciplinary engineering knowledge, and computing. The Handbook is based on the research agenda from a series of interdisciplinary colloquia funded by the US National Science Foundation and published in the Journal of Engineering Education in October 2006.
Download or read book Dictionary of the French and English Languages written by Gabriel Surenne and published by . This book was released on 1856 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering written by Unesco and published by UNESCO. This book was released on 2010-01-01 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report reviews engineering's importance to human, economic, social and cultural development and in addressing the UN Millennium Development Goals. Engineering tends to be viewed as a national issue, but engineering knowledge, companies, conferences and journals, all demonstrate that it is as international as science. The report reviews the role of engineering in development, and covers issues including poverty reduction, sustainable development, climate change mitigation and adaptation. It presents the various fields of engineering around the world and is intended to identify issues and challenges facing engineering, promote better understanding of engineering and its role, and highlight ways of making engineering more attractive to young people, especially women.--Publisher's description.
Download or read book The GEO Handbook on Biodiversity Observation Networks written by Michele Walters and published by Springer. This book was released on 2016-11-25 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biodiversity observation systems are almost everywhere inadequate to meet local, national and international (treaty) obligations. As a result of alarmingly rapid declines in biodiversity in the modern era, there is a strong, worldwide desire to upgrade our monitoring systems, but little clarity on what is actually needed and how it can be assembled from the elements which are already present. This book intends to provide practical guidance to broadly-defined biodiversity observation networks at all scales, but predominantly the national scale and higher. This is a practical how-to book with substantial policy relevance. It will mostly be used by technical specialists with a responsibility for biodiversity monitoring to establish and refine their systems. It is written at a technical level, but one that is not discipline-bound: it should be intelligible to anyone in the broad field with a tertiary education.
Download or read book Engineering for Sustainable Development written by International Centre for Engineering Education and published by UNESCO Publishing. This book was released on 2021-03-02 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report highlights the crucial role of engineering in achieving each of the 17 SDGs. It shows how equal opportunities for all is key to ensuring an inclusive and gender balanced profession that can better respond to the shortage of engineers for implementing the SDGs. It provides a snapshot of the engineering innovations that are shaping our world, especially emerging technologies such as big data and AI, which are crucial for addressing the pressing challenges facing humankind and the planet. It analyses the transformation of engineering education and capacity-building at the dawn of the Fourth Industrial Revolution that will enable engineers to tackle the challenges ahead. It highlights the global effort needed to address the specific regional disparities, while summarizing the trends of engineering across the different regions of the world.
Download or read book A German English Dictionary for Chemists written by Austin M 1876-1956 Patterson and published by Scholar Select. This book was released on 2015-08-08 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Commercial Nuclear Power written by and published by . This book was released on 1984 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Market Assessment Study of New Media Learning Materials written by Canada. Industry Canada and published by . This book was released on 1996 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
