Download or read book D veloppement d une m thodologie de pilotage intelligent par r gulation de flux adapt e aux syst mes de production written by Karim Tamani and published by . This book was released on 2008 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les travaux présentés dans cette thèse portent sur la conception d'une méthodologie de pilotage intelligent pour les systèmes de production à forte densité de flux. Les caractéristiques de ces systèmes nous permettent d'appréhender la représentation des flux y circulant par un modèle continu. Ainsi, a partir du modèle obtenu, la méthodologie de pilotage proposée vise à améliorer les performances du système de production en présence de diverses perturbations. Dans ce contexte, en considérant une décomposition du système en modules de production élémentaires, nous avons proposé une structure de pilotage distribuée et supervisée a deux niveaux : un niveau de « commande locale » ayant pour objectif de réguler les flux traversant chaque module de production sur la base des informations locales (surplus, niveaux des stocks), un niveau de « supervision » dédié à la coordination des contrôleurs locaux afin de suivre les objectifs globaux. Au niveau de la commande locale, nous avons opté pour une structure distribuée et adopté une approche de pilotage fondée sur Ie principe du surplus. Ce principe consiste à allouer de la capacité en ajustant le taux de production de chaque module afin de satisfaire les demandes tout en évitant les ruptures et les blocages. Compte tenu des difficultés liées aux formalismes analytiques et aux incertitudes du système et son environnement, nous avons utilisé des techniques à base d'expertise en exploitant les systèmes flous de Takagi-Sugeno. Au niveau de la commande globale, la supervision est introduite afin d'améliorer la réactivité de la commande locale ainsi que les performances du système en intégrant les objectifs globaux via un mécanisme capable de réaliser des compromis entre des objectifs antagonistes. Lorsqu'une dérive est constatée, l'action de supervision est déployée sous forme d'une composante additive. La fonction de supervision est formalisée en exploitant des mécanismes d'agrégation à base de règles floues et d'opérateurs d'agrégation. Les superviseurs développés se distinguent par : la représentation des objectifs par des intervalles conventionnels et flous, Ie formalisme d'agrégation utilisé et les informations agrégées. Enfin, la méthodologie proposée a été validée, par simulation continue, sur des systèmes de production complexes et à gros volume.
Download or read book A Refinement based methodology for software process modeling written by Fahad Rafique Golra and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Il y a une tendance croissante à considérer les processus d'une organisation comme l'une de ses grandes forces. Les processus sont des ressources réutilisables d'une organisation qui définissent les procédures de travail pour la réalisation de ses objectifs. Avec l'importance croissante du secteur des logiciels et des services, la standardisation des processus devient indispensable pour maintenir sa crédibilité. Le développement de processus suit un cycle de vie très similaire à celui du développement logiciel. Par exemple, il se compose de plusieurs phases et suit une approche incrémentale qui mène à son amélioration continue. Cette approche incrémentale peut être complétée par une stratégie basée sur le raffinement pour développer, exécuter et maintenir les processus de développement de logiciels.Cette thèse propose une base conceptuelle pour le développement de processus logiciels par raffinement, sans perdre de vue les exigences spécifiques de chaque phase du cycle de vie d'un tel processus. Elle utilise l'ingénierie dirigée par les modèles pour présenter un ensemble de méta-modèles pour le développement de processus logiciels où chaque méta-modèle correspond à une phase différente d'un processus (spécification, implémentation et instanciation). Le modèle d'un processus traverse une série de raffinement jusqu'à ce qu'elle soit enrichie par des capacités d'exécution. Le développement d'un interpréteur permet d'exécuter ce modèle. Il donne la possibilité de relier les modèles des differentes phases par des liens de traçabilité. Les intervenants peuvent interagir avec le processus en exécution à l'aide d'une interface de supervision. Un niveau de variabilité incluse dans les modèles de processus permet leur adaptation pendant l'exécution. Tout en prenant en compte la nécessité de se conformer aux standards adoptés par l'organisation, l'architecture de l'approche de modélisation proposée exploite le concept d'abstraction en s'inspirant de la notion de composant logiciel pour aider à la réutilisation de modèles de processus. Notre méthode est également prévue pour les entreprises qui veulent suivre plusieurs standards pour le même projet.Sur la base des connaissances acquises grâce à l'étude des langages de modélisation actuels du domaine, le cadre proposé pour la modélisation de processus présente une architecture qui se développe autour des concepts de «conception par contrat» et «conception pour et par la réutilisation». Ceci permet de construire un modèle de processus qui a une structure modulaire et garantit la correction des interactions entre des activités constituantes. Afin de favoriser la séparation des préoccupations, les flux de données au sein d'un processus sont gérés à un niveau d'abstraction différent de celui des flux de contrôle. La conformité entre ces deux niveaux permet d'offrir une architecture bicouche. Le flux de données lors de l'exécution est assuré par un système de gestion d'événements. Une évaluation des capacités de l'approche proposée est fournie par une analyse basée sur l'ensemble des «workflow patterns». Cela permet une comparaison directe de ses capacités avec d'autres approches de modélisation de processus
Download or read book Pilotage de Syst mes de Production Par Des Principes Immunitaires written by COLLECTIF. and published by Omniscriptum. This book was released on 2011 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: La gestion des perturbations (probl mes d'approvisionnement, d faillances des ressources, probl mes de qualit , ordres urgents...) est une probl matique importante lors du pilotage de syst mes de production. Les architectures de pilotage existantes offrent peu de concepts la fois sp cifiquement d di s et suffisamment g n riques pour g rer une vari t de types de perturbations. Dans ce contexte, l'immunit biologique repr sente un syst me naturellement capable de r agir et de s'adapter aux menaces qui guettent l'organisme h te. Nous nous inspirons de ce syst me pour identifier les principales caract ristiques d'une architecture distribu e de pilotage. Cette architecture met en oeuvre des fonctions suffisamment g n riques et sp cifiquement d di es la gestion des perturbations, telles que les fonctions de d tection, d'identification et de r action aux perturbations. Cette architecture est r alis e gr ce la technologie des syst mes multi agents, et permet en plus de capitaliser les connaissances sur les perturbations en vue d'une r utilisation future. Ce syst me s'int gre aux syst mes d'information et de prise de d cision industriels existants tels que les syst mes ERP et MES.
Download or read book Neural Networks written by Gérard Dreyfus and published by Springer Science & Business Media. This book was released on 2005-11-25 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neural networks represent a powerful data processing technique that has reached maturity and broad application. When clearly understood and appropriately used, they are a mandatory component in the toolbox of any engineer who wants make the best use of the available data, in order to build models, make predictions, mine data, recognize shapes or signals, etc. Ranging from theoretical foundations to real-life applications, this book is intended to provide engineers and researchers with clear methodologies for taking advantage of neural networks in industrial, financial or banking applications, many instances of which are presented in the book. For the benefit of readers wishing to gain deeper knowledge of the topics, the book features appendices that provide theoretical details for greater insight, and algorithmic details for efficient programming and implementation. The chapters have been written by experts and edited to present a coherent and comprehensive, yet not redundant, practically oriented introduction.
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 Design Theory written by Pascal Le Masson and published by Springer. This book was released on 2017-04-06 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Framing Work written by Edmund Heery and published by Oxford University Press. This book was released on 2016 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a broad-ranging survey of contemporary writing about work and employment. It identifies three broad traditions of research and commentary on work - the unitary perspective, the pluralist perspective and the critical perspective - and describes the contemporary output of these traditions; i.e. it surveys current research and argument found within these traditions. The book also surveys debate between these traditions, and the second part of the book presents a detailed account of debate over four current issues. These issues are employee participation, customer culture, equality and diversity and the impact of the global financial crisis. The source material for the book comes from the UK, USA and other countries and the arguments contained within it have international relevance. The book provides an overview of recent work on the employment relationship and the debate and controversy that can be seen in this area of study. Framing Work will be of interest to academics researching and writing about employment and to advanced students in Industrial Relations, Human Resource Management, Organization Studies, and Sociology.
Download or read book Sex Determination in Plants written by CC Ainsworth and published by Garland Science. This book was released on 2004-08-02 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Indispensable for all plant biologists, this is a fascinating and thorough examination of those factors which affect the sex determination of plant species, describing all of the main classes of plant with unisexual flowers hermaphrodite, monoecious and
Download or read book Heritage Regimes and the State written by Bendix, Regina and published by Universitätsverlag Göttingen. This book was released on 2013-07-02 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: What happens when UNESCO heritage conventions are ratified by a state? How do UNESCO’s global efforts interact with preexisting local, regional and state efforts to conserve or promote culture? What new institutions emerge to address the mandate? The contributors to this volume focus on the work of translation and interpretation that ensues once heritage conventions are ratified and implemented. With seventeen case studies from Europe, Africa, the Caribbean and China, the volume provides comparative evidence for the divergent heritage regimes generated in states that differ in history and political organization. The cases illustrate how UNESCO’s aspiration to honor and celebrate cultural diversity diversifies itself. The very effort to adopt a global heritage regime forces myriad adaptations to particular state and interstate modalities of building and managing heritage.
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 Perspectives on Contemporary Professional Work written by Adrian Wilkinson and published by Edward Elgar Publishing. This book was released on 2016-01-29 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: How is the world of professions and professional work changing? This book offers both an overview of current debates surrounding the nature of professional work, and the implications for change brought about by the managerialist agenda. The relationships professionals have with their organizations are variable, indeterminate and uncertain, and there is still debate over the ways in which these should be characterized and theorized. The contributors discuss these implications with topics including hybrid organizations and hybrid professionalism; the changing nature of professional and managerial work; profession and identity; and the emergence of HRM as a new managerial profession. This book will be of interest to academics and postgraduate students seeking a comparative study on contemporary professional work. It will also be of use to a number of practitioners, namely human resource managers, looking for ways in which to approach the changing professional world.
Download or read book Swiss Public Administration written by Andreas Ladner and published by Springer. This book was released on 2018-08-07 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Swiss citizens approve of their government and the way democracy is practiced; they trust the authorities and are satisfied with the range of services Swiss governments provide. This is quite unusual when compared to other countries. This open access book provides insight into the organization and the functioning of the Swiss state. It claims that, beyond politics, institutions and public administration, there are other factors which make a country successful. The authors argue that Switzerland is an interesting case, from a theoretical, scientific and a more practice-oriented perspective. While confronted with the same challenges as other countries, Switzerland offers different solutions, some of which work astonishingly well.
Download or read book Industrial Restructuring written by and published by . This book was released on 1991 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Traditional Forest related Knowledge and Sustainable Forest Management in Africa written by John A. Parrotta and published by . This book was released on 2009 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sustainable Supply Chain Management written by Joëlle Morana and published by John Wiley & Sons. This book was released on 2013-05-06 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is commonly recognized that logistics has become a major strategic issue for all companies, whether they are part of the primary, secondary or tertiary sector. Faced with the external pressures of globalization and competition, logistics optimizes processes and reduces production and delivery cycles. The use of Sustainable Supply Chain Management (SuSCM) is now increasingly at the center of thought, due to the numerous factors favoring its implementation: requests from various stakeholders, governmental pressures (decrees, laws, regulations, etc.), environmental pressures (pollution, disappearance of fuel fossils, etc.) and societal pressures (reputation/image, protection, etc.). However, there are still obstacles to the implementation of SuSCM, including significant costs, the complexity of coordination and the lack of communication within the whole supply chain. Nevertheless, it should nowadays be included by any organization in its decisions towards a strategic approach towards sustainability. This book presents each economic, environmental and societal aspect of SuSCM. By considering each of these dimensions separately, the primary objective is to facilitate the implementation of the elements that make it up. Readers are also provided with several “strategic interpretive lenses” to be able to perform audits and diagnostics of each component. Contents: 1. The Economic Aspect of Sustainable Supply Chain Management. 2. The Environmental Aspect of Sustainable Supply Chain Management. 3. The Social/Societal Aspect of Sustainable Supply Chain Management. 4. Sustainable Supply Chain Management Balanced Scorecard. About the Authors Joëlle Morana is Lecturer in management science, attached to the Laboratoire d’Economie des Transports (Transport Economy Laboratory) at University Lumière Lyon II in France. Her fields of research concern economic, environmental and societal logistics.
Download or read book What is the Code of Conduct for Responsible Fisheries written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2001 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The actual Code of conduct is also available (1996) (ISBN 9251038341).
Download or read book The linguistic integration of adult migrants from one country to another from one language to another written by Council of Europe and published by Council of Europe. This book was released on 2014-01-01 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The linguistic integration of migrants affects every aspect of settling in a new country (employment, health, etc.). The aim of this collection of texts is to propose a number of specific measures member states can take to help adult migrants become acquainted with the language of the host country. The main focus is on organising language courses that meet migrants’ real communication needs. It is not enough for authorities simply to consider the technical aspects of such courses, they should also design and conduct them in accordance with the fundamental values of the Council of Europe. A number of issues concerning the linguistic integration of adult migrants are presented here, beginning with the notion of linguistic integration itself. Family reunion, the nature of citizenship and the function of language tests, among others, are dealt with from the point of view of language and language use. Readers are invited to reflect on the type of language competences that need to be acquired as well as an appropriate use of the Common European Framework of Reference for Languages. The collection also sets out approaches and instruments designed to assist in implementing effective policies.
