Author: Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 710
Book Description
Nuclear Science Abstracts
Author: Compilation of Current High Energy Physics Experiments
Author: Publisher:
ISBN:
Category : Particles (Nuclear physics)
Languages : en
Pages : 188
Book Description
The Problem of Time
Author: Edward AndersonPublisher: Springer
ISBN: 3319588486
Category : Science
Languages : en
Pages : 917
Book Description
This book is a treatise on time and on background independence in physics. It first considers how time is conceived of in each accepted paradigm of physics: Newtonian, special relativity, quantum mechanics (QM) and general relativity (GR). Substantial differences are moreover uncovered between what is meant by time in QM and in GR. These differences jointly source the Problem of Time: Nine interlinked facets which arise upon attempting concurrent treatment of the QM and GR paradigms, as is required in particular for a background independent theory of quantum gravity. A sizeable proportion of current quantum gravity programs - e.g. geometrodynamical and loop quantum gravity approaches to quantum GR, quantum cosmology, supergravity and M-theory - are background independent in this sense. This book's foundational topic is thus furthermore of practical relevance in the ongoing development of quantum gravity programs. This book shows moreover that eight of the nine facets of the Problem of Time already occur upon entertaining background independence in classical (rather than quantum) physics. By this development, and interpreting shape theory as modelling background independence, this book further establishes background independence as a field of study. Background independent mechanics, as well as minisuperspace (spatially homogeneous) models of GR and perturbations thereabout are used to illustrate these points. As hitherto formulated, the different facets of the Problem of Time greatly interfere with each others' attempted resolutions. This book explains how, none the less, a local resolution of the Problem of Time can be arrived at after various reconceptualizations of the facets and reformulations of their mathematical implementation. Self-contained appendices on mathematical methods for basic and foundational quantum gravity are included. Finally, this book outlines how supergravity is refreshingly different from GR as a realization of background independence, and what background independence entails at the topological level and beyond.
Publications of the National Bureau of Standards, 1966-1967
Author: United States. National Bureau of StandardsPublisher:
ISBN:
Category :
Languages : en
Pages : 228
Book Description
Signalńai︠a︡ informat︠s︡ii︠a︡
Author: Publisher:
ISBN:
Category : Field theory (Physics)
Languages : en
Pages : 578
Book Description
Integrated Energy Systems for Multigeneration
Author: Ibrahim DincerPublisher: Elsevier
ISBN: 0128131756
Category : Technology & Engineering
Languages : en
Pages : 466
Book Description
Integrated Energy Systems for Multigeneration looks at how measures implemented to limit greenhouse gas emissions must consider smart utilization of available limited resources and employ renewable resources through integrated energy systems and the utilization of waste energy streams. This reference considers the main concepts of thermal and conventional energy systems through detailed systems description, analyses of methodologies, performance assessment and optimization, and illustrative examples and case studies. The book examines producing power and heat with cooling, freshwater, green fuels and other useful commodities designed to tackle rising greenhouse gas emissions in the atmosphere. With worldwide energy demand increasing, and the consequences of meeting supply with current dependency on fossil fuels, investigating and developing sustainable alternatives to the conventional energy systems is a growing concern for global stakeholders. - Analyzes the links between clean energy technologies and achieving sustainable development - Illustrates several examples of design and analysis of integrated energy systems - Discusses performance assessment and optimization - Uses illustrative examples and global case studies to explain methodologies and concepts
OPTOELECTRONIC DEVICES AND SYSTEMS
Author: S. C. GUPTAPublisher: PHI Learning Pvt. Ltd.
ISBN: 8120350650
Category : Technology & Engineering
Languages : en
Pages : 682
Book Description
This textbook, now in the second edition, offers a completely up-to-date and in-depth introduction to the principles and applications of optoelectronic devices and systems. The text gives a detailed description of optical fibre waveguides, optical fibre cables and their characteristics, manufacturing process and drawing of optical fibres. In addition, it deals with photon sources, photon detectors, fibre optics as a medium and LAN and WAN systems, short and long haul optical fibre communication systems, electro-optic modulators and their characteristics. The second edition possesses a new section on Optical Fibre Based Broadband High Speed Network in Chapter 8, thus highlighting an updated version. Apart from this, a new chapter on Intensity Dependent Refractive Index Effect has been introduced into the text that discusses the effect of focusing on spatial and temperature profiles in a non-linear crystal medium. This chapter further explains the various physical phenomena like the creation of sharp opaque filaments, irradiation induced damaging of the crystal, oscillatory waveguide propagation, saturation effects and other properties in detail. Primarily intended for the undergraduate students of electronics and communication engineering, the book should also prove extremely useful for the postgraduate students of physics. Key features • Provides comprehensive explanation of optical fibre communication with illustrations. • Gives extensive theory and experimental and holographic applications. • Discusses the applications of lasers in industry, military and medical as well as fibre optics applications. • Describes optical computing, optical gates and their applications with illustrations. • Includes solved numericals at the end of book for better understanding of topics.
Government Reports Announcements & Index
Author: Alexander Fleming
Author: Gwyn MacfarlanePublisher: Vintage
ISBN:
Category : Biography & Autobiography
Languages : en
Pages : 340
Book Description
Author: