Construction d'une expertise sur usinage grande vitesse PDF Download
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Author: Christian DELHEZ
Publisher:
ISBN:
Category :
Languages : fr
Pages :
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Author: Christian DELHEZ
Publisher:
ISBN:
Category :
Languages : fr
Pages :
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Author: Jean-Philippe Costes (auteur d'une thèse de Mécanique))
Publisher:
ISBN:
Category :
Languages : fr
Pages :
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Author: Özlem Tugfe Demir
Publisher:
ISBN: 9781680837902
Category :
Languages : en
Pages : 328
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Book Description
Modern day cellular mobile networks use Massive MIMO technology to extend range and service multiple devices within a cell. This has brought tremendous improvements in the high peak data rates that can be handled. Nevertheless, one of the characteristics of this technology is large variations in the quality of service dependent on where the end user is located in any given cell. This becomes increasingly problematic when we are creating a society where wireless access is supposed to be ubiquitous. When payments, navigation, entertainment, and control of autonomous vehicles are all relying on wireless connectivity the primary goal for future mobile networks should not be to increase the peak rates, but the rates that can be guaranteed to the vast majority of the locations in the geographical coverage area. The cellular network architecture was not designed for high-rate data services but for low-rate voice services, thus it is time to look beyond the cellular paradigm and make a clean-slate network design that can reach the performance requirements of the future. This monograph considers the cell-free network architecture that is designed to reach the aforementioned goal of uniformly high data rates everywhere. The authors introduce the concept of a cell-free network before laying out the foundations of what is required to design and build such a network. They cover the foundations of channel estimation, signal processing, pilot assignment, dynamic cooperation cluster formation, power optimization, fronthaul signaling, and spectral efficiency evaluation in uplink and downlink under different degrees of cooperation among the access points and arbitrary linear combining and precoding. This monograph provides the reader with all the fundamental information required to design and build the next generation mobile networks without being hindered by the inherent restrictions of modern cellular-based technology.
Author: Xun Xu
Publisher: Springer Science & Business Media
ISBN: 1848827393
Category : Technology & Engineering
Languages : en
Pages : 495
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Book Description
Design and manufacturing is the essential element in any product development lifecycle. Industry vendors and users have been seeking a common language to be used for the entire product development lifecycle that can describe design, manufacturing and other data pertaining to the product. Many solutions were proposed, the most successful being the Stadndard for Exchange of Product model (STEP). STEP provides a mechanism that is capable of describing product data, independent from any particular system. The nature of this description makes it suitable not only for neutral file exchange, but also as a basis for implementing, sharing and archiving product databases. ISO 10303-AP203 is the first and perhaps the most successful AP developed to exchange design data between different CAD systems. Going from geometric data (as in AP203) to features (as in AP224) represents an important step towards having the right type of data in a STEP-based CAD/CAM system. Of particular significance is the publication of STEP-NC, as an extension of STEP to NC, utilising feature-based concepts for CNC machining purposes. The aim of this book is to provide a snapshot of the recent research outcomes and implementation cases in the field of design and manufacturing where STEP is used as the primary data representation protocol. The 20 chapters are contributed by authors from most of the top research teams in the world. These research teams are based in national research institutes, industries as well as universities.
Author: Don Montague
Publisher: Taylor & Francis
ISBN: 9780419199106
Category : Architecture
Languages : en
Pages : 472
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Book Description
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.
Author: Philip Mitchell
Publisher: Society of Manufacturing Engineers
ISBN: 0872634566
Category : Technology & Engineering
Languages : en
Pages : 695
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Book Description
This volume focuses on the practical application of processes for manufacturing plastic products. It includes information on design for manufacturability (DFM), material selection, process selection, dies, molds, and tooling, extrusion, injection molding, blow molding, thermoforming, lamination, rotational molding, casting, foam processing, compression and transfer molding, fiber reinforced processing, assembly and fabrication, quality, plant engineering and maintenance, management.
Author: Sahra Gibbon
Publisher: Routledge
ISBN: 1134144725
Category : Health & Fitness
Languages : en
Pages : 387
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Book Description
Biosocialities, Genetics and the Social Sciences explores the social, cultural and economic transformations that result from innovations in genomic knowledge and technology. This pioneering collection uses Paul Rabinow’s concept of biosociality to chart the shifts in social relations and ideas about nature, biology and identity brought about by developments in biomedicine. Based on new empirical research, it contains chapters on genomic research into embryonic stem cell therapy, breast cancer, autism, Parkinson’s and IVF treatment, as well as on the expectations and education surrounding genomic research. It covers four main themes: novel modes of identity and identification, such as genetic citizenship the role of institutions, ranging from disease advocacy organizations and voluntary organizations to the state the production of biological knowledge, novel life-forms, and technologies the generation of wealth and commercial interests in biology. Including an afterword by Paul Rabinow and case studies on the UK, US, Canada, Germany, India and Israel, this book is key reading for students and researchers of the new genetics and the social sciences – particularly medical sociologists, medical anthropologists and those involved with science and technology studies.
Author: North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development
Publisher:
ISBN: 9789283600046
Category : Aeronautics
Languages : en
Pages :
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Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1058
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Author: Stephen Ackroyd
Publisher: SAGE
ISBN: 1446233677
Category : Business & Economics
Languages : en
Pages : 318
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′[A] textbook specifically aimed at organizational misbehaviour. ...it certainly fills a gap... containing a large survey of academic literature on the subject. The book is good: it brings to light subjects which are too often negleced, and it provides an understanding of phenomena which are so common in organizations, but at the same time so vague and incomprehensible′ Organization Studies From `soldiering′ and absenteeism to humour in organizations and the emergence politics of sexuality, this book explores the latest forms of organizational subversion and offers fresh insights of the underlying dynamics of management and organizational processes. The book opens with a critique of orthodox organizational analysis and maps out the wide terrain across which organizational `misbehaviour′ occurs. The authors go on to examine the interconnections between identity formation, the pursuit of autonomy and organizational misbehaviour, and explore how clearly the tendency to misbehave is deeply embedded in organizational life.
