Download or read book Maturity integrated in a meta model of knowledge to help decision making in preliminary collaborative design of mechanical systems written by Nicolas Dremont and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: La conception de systèmes mécaniques, de par son aspect pluridisciplinaire et technologique, fait intervenir et interagir différentes personnes qui travaillent et prennent des décisions ensemble, et, participent ensemble à l'élaboration du produit. Elles travaillent de manière collaborative cependant elles ne se connaissent pas obligatoirement, ne se situent pas forcément géographiquement sur un site commun, n'ont peut-être pas la même culture et n'appartiennent pas systématiquement à la même entreprise. La conception préliminaire représente les premières phases du cycle de conception ou le produit est en cours de définition. Le nombre d'incertitudes sur les paramètres et les informations produit sont très importantes. Il y a un manque de connaissances important à cette étape du processus de conception qui doit être considéré afin d'améliorer et d'aider les prises de décisions dans les phases amonts. C'est ce manque de connaissances que je me propose de qualifier et caractériser en apportant une réponse à la question résultante: comment prendre en compte le manque de connaissances pour prendre des décisions durant la conception préliminaire collaborative ? Pour se faire, nous proposons un méta-modèle de connaissances permettant de structurer les informations du produit et les connaissances en intégrant la maturité du produit. Cette maturité est définie par une métrique et permet d'identifier le niveau de connaissances des concepteurs sur le produit et d'orienter la prise de décision grâce à l'utilisation d'une approche mixte, à la fois qualitative et quantitative. Enfin, nous évaluerons la capacité de ce méta-modèle à générer différent modèles produit, puis sa pertinence avec l'implémentation sur un cas industriel.
Download or read book High level modeling of run time managers for the design of heterogeneous embedded systems written by Yaset Oliva Venegas and published by . This book was released on 2012 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Afin de répondre à la difficulté toujours croissante de réaliser des systèmes embarqués, les concepteurs ont dû se tourner vers des méthodes et outils permettant d’abstraire le niveau de description. Ces systèmes modernes sont généralement caractérisés par la présence de multiples fonctions complexes de traitement numérique du signal et s’articulent de plus en plus autour de blocs hétérogènes (logiciels et matériels). Dans ce contexte, la tendance actuelle est d’incorporer un noyau afin de gérer ces différents blocs de manière flexible et dynamique. Lorsque ces blocs deviennent trop complexes, il devient alors possible d’ajouter au noyau des services supplémentaires afin d’en assurer la gestion. Ceci est notamment le cas lorsque les fonctions peuvent s’exécuter sur plusieurs processeurs hétérogènes ou dans des zones matérielles reconfigurables. Compte tenu de tous ces aspects, la première partie de cette thèse porte sur une contribution à un outil de conception et propose une méthodologie permettant d'explorer la structure d'un système embarqué. L'outil permet la spécification des trois éléments de base d'un système : l'application, l'architecture et le système d'exploitation (noyau) à partir de modèles de haut niveau. La méthodologie consiste à spécifier, simuler et analyser les trois éléments de base. La démarche d’exploration s’effectue de manière itérative jusqu'à ce qu’une solution satisfaisante soit déterminée. La seconde partie de la thèse a porté sur une extension d’un modèle noyau afin de gérer dynamiquement la migration des tâches entre différents blocs de traitement (processeurs ou zones reconfigurables). Le service proposé est conçu pour gérer les architectures à mémoire partagée contenant un noyau supportant une configuration maître/esclave. Ce service d’Offloading complète le modèle du noyau en y ajoutant de nouvelles fonctionnalités (la migration des tâches, gestion des tâches hétérogènes et le placement intelligent).
Download or read book Supplementary volume Edited by I Todhunter written by George Boole and published by . This book was released on 1865 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Treatise on Differential Equations written by George Boole and published by . This book was released on 1859 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Critical Technologies Plan written by and published by . This book was released on 1989 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis and Optimization of Systems written by Alain Bensoussan and published by . This book was released on 1986 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nondifferentiable Optimization written by Michel Louis Balinski and published by . This book was released on 1975 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Irrigation in Africa in Figures written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2005 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: The AQUASTAT programme was established to develop a comprehensive picture of water resources and irrigation in developing countries, and to give systematic, up-to-date and reliable information on water for agriculture and development. This report sets out an analysis of water availability and its use on the African continent and changes that have occurred over the last decade, with an emphasis on agricultural water use and management. The report includes a CD-ROM with detailed profiles on the situation in each of the 53 countries in Africa.
Download or read book A Treatise on Universal Algebra written by Alfred North Whitehead and published by . This book was released on 1898 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimal Shape Design for Elliptic Systems written by O. Pironneau and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of optimal shape design can be arrived at by asking the following question: "What is the best shape for a physical system?" This book is an applications-oriented study of such physical systems; in particular, those which can be described by an elliptic partial differential equation and where the shape is found by the minimum of a single criterion function. There are many problems of this type in high-technology industries. In fact, most numerical simulations of physical systems are solved not to gain better understanding of the phenomena but to obtain better control and design. Problems of this type are described in Chapter 2. Traditionally, optimal shape design has been treated as a branch of the calculus of variations and more specifically of optimal control. This subject interfaces with no less than four fields: optimization, optimal control, partial differential equations (PDEs), and their numerical solutions-this is the most difficult aspect of the subject. Each of these fields is reviewed briefly: PDEs (Chapter 1), optimization (Chapter 4), optimal control (Chapter 5), and numerical methods (Chapters 1 and 4).
Download or read book Optimization of Distributed Parameter Structures written by Edward J. Haug and published by Kluwer Academic Publishers. This book was released on 1981 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater Resources of the World and Their Use written by Igorʹ Semenovich Zekt︠s︡er and published by . This book was released on 2004 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph represents many years of groundwater data accumulation by a large number of noted hydrogeologists located throughout the world. It represents a multicultural approach to groundwater resources and their use. As a result, many of the fundamental concepts in hydrogeology are interpreted slightly differently in other countries. In fact, there are a number of hydrogeologic phenomena introduced that for the most part have not been presented internationally. Since various cultures review the science of hydrogeology with their own nuances, a substantial effort was made to provide classic references in the science of hydrogeology. The focus of the monograph was to present data and scientific principals, which are relevant to groundwater use in each of the countries. This monograph represents a major undertaking by hydrologists and hydrogeologists around the world. Although the fundamental groundwater resource data may change slowly over time, the groundwater use data is rapidly changing. Consulting hydrogeologists, engineers, chemists, geologists, biologists, health officials, and government environmental administrators will find this baseline document of substantial value. It is fully anticipated that this book will serve as the first addition of a series on groundwater resources of the world and their use.
Download or read book Die Ausdchnungslehre Von 1844 Oder Die Lineale Ausdehnungslehre Ein Neuer Zweig Der Mathematik Da written by Hermann Grassmann and published by Legare Street Press. This book was released on 2022-10-27 with total page 0 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 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. 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 Fundamentals of Human Computer Interaction written by Andrew F. Monk and published by Academic Press. This book was released on 2014-06-28 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Human-Computer Interaction aims to sensitize the systems designer to the problems faced by the user of an interactive system. The book grew out of a course entitled ""The User Interface: Human Factors for Computer-based Systems"" which has been run annually at the University of York since 1981. This course has been attended primarily by systems managers from the computer industry. The book is organized into three parts. Part One focuses on the user as processor of information with studies on visual perception; extracting information from printed and electronically presented text; and human memory. Part Two on the use of behavioral data includes studies on how and when to collect behavioral data; and statistical evaluation of behavioral data. Part Three deals with user interfaces. The chapters in this section cover topics such as work station design, user interface design, and speech communication. It is hoped that this book will be read by systems engineers and managers concerned with the design of interactive systems as well as graduate and undergraduate computer science students. The book is also suitable as a tutorial text for certain courses for students of Psychology and Ergonomics.
Download or read book Optimal Shape Design written by B. Kawohl and published by Springer Science & Business Media. This book was released on 2000-11-16 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optimal Shape Design is concerned with the optimization of some performance criterion dependent (besides the constraints of the problem) on the "shape" of some region. The main topics covered are: the optimal design of a geometrical object, for instance a wing, moving in a fluid; the optimal shape of a region (a harbor), given suitable constraints on the size of the entrance to the harbor, subject to incoming waves; the optimal design of some electrical device subject to constraints on the performance. The aim is to show that Optimal Shape Design, besides its interesting industrial applications, possesses nontrivial mathematical aspects. The main theoretical tools developed here are the homogenization method and domain variations in PDE. The style is mathematically rigorous, but specifically oriented towards applications, and it is intended for both pure and applied mathematicians. The reader is required to know classical PDE theory and basic functional analysis.
Download or read book Handbook of Functional Equations written by Themistocles M. Rassias and published by Springer. This book was released on 2014-11-18 with total page 555 pages. Available in PDF, EPUB and Kindle. Book excerpt: As Richard Bellman has so elegantly stated at the Second International Conference on General Inequalities (Oberwolfach, 1978), “There are three reasons for the study of inequalities: practical, theoretical, and aesthetic.” On the aesthetic aspects, he said, “As has been pointed out, beauty is in the eye of the beholder. However, it is generally agreed that certain pieces of music, art, or mathematics are beautiful. There is an elegance to inequalities that makes them very attractive.” The content of the Handbook focuses mainly on both old and recent developments on approximate homomorphisms, on a relation between the Hardy–Hilbert and the Gabriel inequality, generalized Hardy–Hilbert type inequalities on multiple weighted Orlicz spaces, half-discrete Hilbert-type inequalities, on affine mappings, on contractive operators, on multiplicative Ostrowski and trapezoid inequalities, Ostrowski type inequalities for the Riemann–Stieltjes integral, means and related functional inequalities, Weighted Gini means, controlled additive relations, Szasz–Mirakyan operators, extremal problems in polynomials and entire functions, applications of functional equations to Dirichlet problem for doubly connected domains, nonlinear elliptic problems depending on parameters, on strongly convex functions, as well as applications to some new algorithms for solving general equilibrium problems, inequalities for the Fisher’s information measures, financial networks, mathematical models of mechanical fields in media with inclusions and holes.
Download or read book Groundwater and Climate Change written by Philippe Cullet and published by Routledge. This book was released on 2018-08-30 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book undertakes a scholarly assessment of the state of the art of law and policy perspectives on groundwater and climate change at the international, regional and national levels. A particular focus is given to India, which is the largest user of groundwater in the world, and where groundwater is the primary source of water for domestic and agricultural uses. The extremely rapid rise in groundwater use in many Indian states has led to a growing groundwater crisis that they must address. The existing regulatory framework has not adapted to the challenges and fails to address any environmental concerns. On climate change, India has adopted a policy framework that makes the link with water, but no legislation has followed up to make the link operational. The subject matter of this book has been widely debated with regard to each of its main two components separately. Bringing these two domains together is what makes this book unique. The link between climate change and groundwater has been acknowledged to some extent, and there is growing interest in studying the impacts of climate change on (ground)water. Similarly, in water and environmental law and policy, increasing attention has been given to the study of climate change and groundwater legal and policy frameworks but generally separately. This book contributes to filling this knowledge gap by drawing on contributions from leading experts in the field of environmental and water law and policy who have been involved in climate change and/or groundwater research. The chapters in this book were originally published in a special issue of Water International.
