Download or read book Influence des capacit s de stockage dans les probl mes d ordonnancement de production written by Amara Benlogab and published by . This book was released on 1996 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES PROBLEMES D'ORDONNANCEMENT AVEC STOCKS DE CAPACITES LIMITEES SONT RENCONTRES DANS PLUSIEURS TYPES DE SYSTEMES DE PRODUCTION. LA PREMIERE RAISON EST LIEE AUX COUTS ENGENDRES ET AUX MOYENS MOBILISES. L'AUTRE RAISON PROVIENT DU DIMENSIONNEMENT DU SYSTEME. DANS LE CADRE DE CE TRAVAIL, NOUS CONSIDERONS LES ASPECTS DE DIMENSIONNEMENT ET DE COMMANDE DES SYSTEMES DE PRODUCTION PRESENTANT DES CAPACITES DE STOCKAGE INTERMEDIAIRE LIMITEES. L'APPROCHE DE L'ANALYSE DE PERTURBATION EST PRESENTEE ET APPLIQUEE DANS L'OBJECTIF DE DETERMINER LES TAILLES OPTIMALES DES STOCKS DANS UN SYSTEME MANUFACTURIER. PAR LA SUITE, TROIS ASPECTS DU PROBLEME D'ORDONNANCEMENT DANS LES ATELIERS A FLOTS SONT TRAITES: ? ORDONNANCEMENT STATIQUE: DEUX CLASSES DE CRITERES SONT ENVISAGEES: FONCTIONS DE TYPE MAX ET FONCTIONS SEPARABLES. DES METHODES EXACTES AINSI QUE DES HEURISTIQUES SONT PROPOSEES POUR CHAQUE TYPE DE PROBLEME. ? ORDONNANCEMENT STOCHASTIQUE: LE PROBLEME EST DE DETERMINER L'ESPERANCE DU CRITERE D'ORDONNANCEMENT SACHANT LES FONCTIONS DENSITE DE PROBABILITE DES DUREES OPERATOIRES. ? ORDONNANCEMENT DYNAMIQUE: IL S'AGIT D'ELABORER UNE METHODE ADAPTATIVE QUI CONTROLE ET AJUSTE LE PROGRAMME DE PRODUCTION DE DEPART EN FONCTION DE L'ETAT D'AVANCEMENT DE LA PRODUCTION. LA DERNIERE PARTIE DE CE TRAVAIL EST CONSACREE A L'EXTENSION DES RESULTATS DEGAGES SUR LES ATELIERS A FLOTS POUR RESOUDRE LE CAS OU LES ROUTAGES DES PRODUITS SONT QUELCONQUES. AUSSI L'ASPECT DE ROBUSTESSE EST ANALYSE AFIN DE MESURER L'APTITUDE D'UNE POLITIQUE D'ORDONNANCEMENT A ABSORBER LES PERTURBATIONS POUVANT SURGIR AU COURS DE LA DUREE DE PRODUCTION

Download or read book Ordonnancement des syst mes de production flexibles soumis diff rents types de contraintes de blocage written by Wajdi Trabelsi and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce sujet de thèse concerne de manière générale l'évaluation des performances et l'ordonnancement dans des systèmes de production flexibles et principalement les problèmes d'ordonnancement d'atelier de type Flow-Shop et Flow-Shop hybride. Le problème d'ordonnancement d'un Flow-Shop peut être défini ainsi : un ensemble de N jobs composés chacun de M opérations, doivent passer sur M machines dans le même ordre. Une machine peut exécuter une seule opération à la fois, chaque job ne peut avoir qu'une seule opération en cours de réalisation simultanément et la préemption n'est pas autorisée. Dans le cas des Flow-Shops hybrides, Mk machines identiques sont disponibles à chaque étage k en un ou plusieurs exemplaires. Pour cette étude, notre objectif est toujours de minimiser le temps total d'exécution aussi appelé makespan. Les problèmes d'ordonnancement les plus répandus sont de type Flow-Shop classique où les espaces de stockage entre les machines sont considérées comme infinies. D'autres problèmes sont caractérisés par des capacités de stockage limitées ou nulles qui engendre une seule contrainte de blocage. Cette contrainte peut être un blocage classique (de type RSb) ou particulier (de type RCb ou RCb*). Dans nos travaux de recherche, nous présentons un cas général qui peut être tiré de l'industrie et modélisé sous forme de systèmes de type Flow-Shop et Flow-Shop hybride soumis simultanément à plusieurs types de blocage. Pour résoudre ce genre de problèmes, nous avons étudié dans cette thèse la complexité de ces systèmes et nous avons proposé des méthodes exactes, des méthodes approchées ainsi que des bornes inférieures.

Download or read book Philosophy manual a South South perspective written by Chanthalangsy, Phinith and published by UNESCO Publishing. This book was released on 2014-12-31 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Supply Chain Management written by John T. Mentzer and published by SAGE. This book was released on 2001 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents a comprehensive model of supply chain management. Experienced executives from 20 companies clearly define supply chain management, identifying those factors that contribute to its effective implementation. They provide practical guidelines on how companies can manage supply chains, addressing the role of all the traditional business functions in supply chain management and suggest how the adoption of a supply chain management approach can affect business strategy and corporate performance.

Download or read book Arctic Shipping written by Frédéric Lasserre and published by Routledge. This book was released on 2019-09-05 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book considers both the present state of Arctic shipping and possible future trends with reference to the various sectors of maritime transportation: cruise tourism, container traffic and bulk shipping. Ports are analysed as tools that support the strategies of coastal states to foster the development of resource extraction, enhance the attractiveness of Arctic shipping lanes and enable the control of maritime activities through coast guard deployment. The aim of this book is to draw a picture of the trends of Arctic shipping. How is traffic evolving in Canada’s Arctic, or along the Northern Sea Route? Are there significant differences between bulk and container shipping segments when considering the Arctic market? How are the ports and the hinterland developing and what are the strategies behind those? How is the legal framework shaping the evolution of maritime transportation? The contributors to this book consider all of these questions, and more, as they map out the prospects for Arctic shipping and analyse in detail the development of Arctic shipping as a result of multi-variable interactions. This book will be key reading for industry professionals and post-graduate students alike.

Download or read book Management of Stochastic Demand in Make to Stock Manufacturing written by Rainer Quante and published by Peter Lang. This book was released on 2009 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Up to now, demand fulfillment in make-to-stock manufacturing is usually handled by advanced planning systems. Orders are fulfilled on the basis of simple rules or deterministic planning approaches not taking into account demand fluctuations. The consideration of different customer classes as it is often done today requires more sophisticated approaches explicitly considering stochastic influences. This book reviews current literature, presents a framework that addresses revenue management and demand fulfillment at once and introduces new stochastic approaches for demand fulfillment in make-to-stock manufacturing based on the ideas of the revenue management literature.

Download or read book Adaptive Stream Mining written by Albert Bifet and published by IOS Press. This book was released on 2010 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a significant contribution to the subject of mining time-changing data streams and addresses the design of learning algorithms for this purpose. It introduces new contributions on several different aspects of the problem, identifying research opportunities and increasing the scope for applications. It also includes an in-depth study of stream mining and a theoretical analysis of proposed methods and algorithms. The first section is concerned with the use of an adaptive sliding window algorithm (ADWIN). Since this has rigorous performance guarantees, using it in place of counters or accumulators, it offers the possibility of extending such guarantees to learning and mining algorithms not initially designed for drifting data. Testing with several methods, including Naïve Bayes, clustering, decision trees and ensemble methods, is discussed as well. The second part of the book describes a formal study of connected acyclic graphs, or 'trees', from the point of view of closure-based mining, presenting efficient algorithms for subtree testing and for mining ordered and unordered frequent closed trees. Lastly, a general methodology to identify closed patterns in a data stream is outlined. This is applied to develop an incremental method, a sliding-window based method, and a method that mines closed trees adaptively from data streams. These are used to introduce classification methods for tree data streams.

Download or read book Product Life Cycle Management written by Max Giordano and published by John Wiley & Sons. This book was released on 2012-12-17 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a comprehensive view of the most recent major international research in the field of tolerancing, and is an excellent resource for anyone interested in Computer Aided Tolerating. It is organized into 4 parts. Part 1 focuses on the more general problems of tolerance analysis and synthesis, for tolerancing in mechanical design and manufacturing processes. Part 2 specifically highlights the simulation of assembly with defects, and the influence of tolerances on the quality of the assembly. Part 3 deals with measurement aspects, and quality control throughout the life cycle. Different measurement technologies and methods for estimating uncertainty are considered. In Part 4, different aspects of tolerancing and their interactions are explored, from the definition of functional requirement to measurement processes in a PLM approach.

Download or read book The Future of the Mind written by Michio Kaku and published by Anchor. This book was released on 2015-02-17 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Michio Kaku, the New York Times bestselling author of Physics of the Impossible and Physics of the Future tackles the most fascinating and complex object in the known universe: the human brain. The Future of the Mind brings a topic that once belonged solely to the province of science fiction into a startling new reality. This scientific tour de force unveils the astonishing research being done in top laboratories around the world—all based on the latest advancements in neuroscience and physics—including recent experiments in telepathy, mind control, avatars, telekinesis, and recording memories and dreams. The Future of the Mind is an extraordinary, mind-boggling exploration of the frontiers of neuroscience. Dr. Kaku looks toward the day when we may achieve the ability to upload the human brain to a computer, neuron for neuron; project thoughts and emotions around the world on a brain-net; take a “smart pill” to enhance cognition; send our consciousness across the universe; and push the very limits of immortality.

Download or read book Gas cooled Nuclear Reactors written by France. Commissariat à l'énergie atomique and published by . This book was released on 2006 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Economy New Myth written by Jean Gadrey and published by Routledge. This book was released on 2002-11-28 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 'new economy' has been criticised greatly of late, and after the speculation and hype that surrounded the internet bubble, this is hardly surprising. This book, first published in French and updated here, however treats the 'new economy' as a discourse - one that is often misleading. In order to understand what happened during the internet bubb

Download or read book Seaside Operations Planning in Container Terminals written by Frank Meisel and published by Springer Science & Business Media. This book was released on 2009-05-28 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. 1 Motivation and Scope of Research Container terminals in seaports constitute interfaces between sea and land tra- port of goods in global transport chains. These logistics facilities face an increasing demandof service capacity,as is re ected by a tremendousgrowthin the worldwide container transshipments per year. For example, the top 20 terminals in the world showed an average relative increase of 14% with respect to the number of handled container units from 2006 to 2007, see Port of Hamburg Marketing (2008). In spite of this development, competition is high among container terminals within the same region. A terminal’s customers, rst and foremost the vessel op- ators, expect a high level of service quality where reliability is one of the most importantdimensions,seeWiegmansetal. (2001). Regardingtheserviceofavessel, reliability means to realize all transshipment operations within its projected service time interval. The reliability of terminal operations impacts the reliability of v- sels in meeting their liner schedules. According to Notteboom (2006) unexpected waiting times of vessels before berthing and unexpected low transshipment prod- tivity at terminals are responsible for about 86% of liner schedule disturbances, see Fig. 1. 1. Currently, many terminal operators counteract this situation by extending their transshipment capacities. They build new terminals or enlarge existing ter- nals and purchase new or upgrade existing equipment. Ilmer (2005) provides an overview of current projects for building terminal capacity in northern Europe.

Download or read book Concurrency Control and Recovery in Database Systems written by Philip A. Bernstein and published by Addison Wesley Publishing Company. This book was released on 1987 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Price Quality and Trust written by Mari Sako and published by Cambridge University Press. This book was released on 1992-10-08 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: The management of buyer-supplier relations has come to be regarded as a key to achieving manufacturing competitiveness, particularly in sectors facing global competition based on both price and quality. This book is a theoretical and empirical exploration of the link between the type of buyer-supplier relations and corporate performance. Dr Sako examines how British and Japanese companies in the electronics industry manage their relationships with buyers and suppliers, the empirical study comprising a three-way comparison of a Japanese customer company, a British customer company, and a Japanese company in Britain, and an analysis of 36 supplier companies in Britain and Japan. Variations of the companies' business practices are assessed in terms of technology, the nature of market competition, the national legal framework, financial structures, employment systems, and the mode of entrepreneurship. The author identifies two distinct approaches in the two countries - the arm's-length contractual relation (ACR) in Britain, and the obligational contractual relation (OCR) in Japan - and argues that the trust and interdependence present in the latter can be a powerful springboard from which to achieve corporate success.

Download or read book Mathematical Aspects of Scheduling and Applications written by R. Bellman and published by Elsevier. This book was released on 2014-05-20 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematical Aspects of Scheduling and Applications addresses the perennial problem of optimal utilization of finite resources in the accomplishment of an assortment of tasks or objectives. The book provides ways to uncover the core of these problems, presents them in mathematical terms, and devises mathematical solutions for them. The book consists of 12 chapters. Chapter 1 deals with network problems, the shortest path problem, and applications to control theory. Chapter 2 stresses the role and use of computers based on the decision-making problems outlined in the preceding chapter. Chapter 3 classifies scheduling problems and their solution approaches. Chapters 4 to 6 discuss machine sequencing problems and techniques. Chapter 5 tackles capacity expansion problems and introduces the technique of embedded state space dynamic programming for reducing dimensionality so that larger problems can be solved. Chapter 6 then examines an important class of network problems with non-serial phase structures and exploits dimensionality reduction techniques, such as the pseudo-stage concept, branch compression, and optimal order elimination methods to solve large-scale, nonlinear network scheduling problems. Chapters 7 to 11 consider the flow-shop scheduling problem under different objectives and constraints. Chapter 12 discusses the job-shop-scheduling problem. The book will be useful to economists, planners, and graduate students in the fields of mathematics, operations research, management science, computer science, and engineering.

Download or read book Max Weber and Karl Marx written by Karl Lowith and published by Routledge. This book was released on 2002-11-01 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: First Published in 2004. Lowith's study of Max Weber and Karl Marx is a key text in modem interpretations of the theme of alienation in Marxist theory and rationalisation in Weber's sociology. It remains the best short student introduction to the differences and comparisons between these essential thinkers. This new edition includes a Preface by Professor Bryan S. Turner which demonstrates the relevance of the book for contemporary sociology.

Download or read book Dictionnaire commercial written by Académie des sciences commerciales and published by CILF. This book was released on 1994 with total page 1040 pages. Available in PDF, EPUB and Kindle. Book excerpt: