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1111-1120 of 1158 results in All results

The Quantum Mechanics of Many-Body Systems

  • 1st Edition
  • January 1, 1961
  • D. J. Thouless
  • H. S. W. Massey + 1 more
  • English
  • eBook
    9 7 8 - 1 - 4 8 3 2 - 7 5 9 6 - 3
The Quantum Mechanics of Many-Body Systems provides an introduction to that field of theoretical physics known as ""many-body theory."" It is concerned with problems that are common to nuclear physics, atomic physics, the electron theory of metals, and to the theories of liquid helium three and four, and it describes the methods which have recently been developed to solve such problems. The aim has been to produce a unified account of the field, rather than to describe all the parallel methods that have been developed; as a result, a number of important papers are not mentioned. The main emphasis is on the theories of atomic nuclei, the electron gas, and liquid helium; there is no discussion of molecular theory or of solid helium. The reader is expected to be familiar with the principles of nonrelativistic quantum mechanics and of statistical mechanics, but a knowledge of field theory and a detailed knowledge of nuclear and solid state physics are not assumed.

Introduction to Hypersonic Flow

  • 1st Edition
  • January 1, 1961
  • G. G. Chernyi
  • English
  • eBook
    9 7 8 - 1 - 4 8 3 2 - 7 1 6 8 - 2
Introduction to Hypersonic Flow has been made available to the English speaking reader because of its usefulness for those individuals desirous of obtaining an introduction to the subject. Written by an internationally acknowledged expert in the field of hypersonic flow, the book makes available heretofore unpublished Soviet work, as well as published work little known outside the Soviet Union. The author has however made every effort to include, where appropriate. Western references for the work he discusses. Starting with a general introductory chapter on hypersonic aerodynamics and aerodynamic problems, the remainder of the book concentrates on the inviscid, perfect fluid aspects of hypersonic flow, with emphasis on the fundamental concepts and rational methods of calculation. The book is directed to students of aerodynamics and gas dynamics, as well as to scientists and engineers interested in problems of hypersonic flight. The level of approach is such that it should prove particularly useful as an undergraduate and introductory graduate text.

Pleuropneumonia-Like Organisms (PPLO): Mycoplasmataceae

  • 1st Edition
  • January 1, 1961
  • E. Klieneberger-Nobel
  • English
  • eBook
    9 7 8 - 1 - 4 8 3 2 - 6 7 6 4 - 7
Pleuropneumonia-like Organisms (PPLO) Mycoplasmataceae provides information on the characteristics, nature, and reactions of pleuropneumonia-like organisms (PPLO) or mycoplasmataceae. The book first offers information on bovine pleuropneumonia and agalactia of sheep and goats and the discovery of their etiological agents and discovery of organisms closely related to the organisms of pleuropneumonia bovis and agalactia of the mentioned animals. Topics include misinterpretations of disease conditions due to PPLO in experimental animals, contagious pleuropneumonia bovis, and organisms from dogs with distemper. The text then takes a look at the morphology, isolation, and growth characteristics of PPLO, as well as organisms from rats, mice, dogs, cattle, and humans and subculturing and maintenance of PPLO. The publication examines chicken coccobacilliform bodies and PPLO and similarities and differences between PPLO and L-forms of bacteria. The manuscript is a dependable source of information for readers interested in pleuropneumonia-like organisms.

Statistical Methods in Radio Wave Propagation

  • 1st Edition
  • January 1, 1960
  • W. C. Hoffman
  • English
  • eBook
    9 7 8 - 1 - 4 8 3 1 - 5 4 1 5 - 2
Statistical Methods in Radio Wave Propagation contains the proceedings of a symposium held at the University of California, Los Angeles, on June 18-20, 1958. The papers explore the use of statistical techniques in the analysis and interpretation of data pertaining to the propagation of radio waves. The discussion is organized around three themes: statistical theory and methodology; radio propagation phenomena having a joint statistical and physical structure; and instrumentation. This book is comprised of 23 chapters and begins by summarizing the principal results of a series of statistical studies on the intensity distributions due to rapid fading. The reader is then introduced to some theoretical investigations on fading phenomena; radio-measurement of ionospheric drift as a problem in parameter estimation; the propagation of random radiation in free space; and the statistics of working spells and periods of breakdown for a number of radio links in series. The remaining chapters deal with airborne measurements of tropospheric index of refraction fluctuations; the distribution of the fade lengths of a randomly fading radio signal; diversity statistics in scatter propagation; and extrapolation of spatial correlation functions. The final chapter describes a rapid statistical data processing system for radio propagation research. This monograph will be a useful resource for both radio scientists and statisticians.

Motion and Relativity

  • 1st Edition
  • January 1, 1960
  • Leopold Infeld + 1 more
  • English
  • eBook
    9 7 8 - 1 - 4 8 3 2 - 8 0 3 8 - 7
Motion and Relativity focuses on the methodologies, solutions, and approaches involved in the study of motion and relativity, including the general relativity theory, gravitation, and approximation. The publication first offers information on notation and gravitational interaction and the general theory of motion. Discussions focus on the notation of the general relativity theory, field values on the world-lines, general statement of the physical problem, Newton's theory of gravitation, and forms for the equation of motion of the second kind. The text then takes a look at the approximation method and the equations of motion and motion and the Newtonian and post-Newtonian approximation. Topics include general remarks on the approximation method, two forms of the equations of motion and integrability conditions, approximation method and coordinate system, and development of the metric field. The manuscript examines the variational principle and the equations of motion of the third kind and the one and two particle problems. The formulation of the problem, Lagrangian up the sixth order, motion of a test particle in the field of a heavy particle, two-body problem, and motion of rotating bodies are discussed. The text is a dependable reference for readers interested in the methodologies, solutions, and approaches involved in the study of motion and relativity.

Atomic Radiation and Polymers

  • 1st Edition
  • January 1, 1960
  • A. Charlesby
  • A. Charlesby
  • English
  • eBook
    9 7 8 - 1 - 4 8 3 1 - 8 1 3 0 - 1
Atomic Radiation and Polymers examines the effects of radiation on polymer materials. The title deals with chemical changes that took place when polymers are exposed to radiation, and how these changes affect the physical properties of the polymers. The text first covers the interaction of radiation and matter, along with radiation sources and dosimetry. Next, the selection deals with the general properties of long chain polymers. The text also details the organic molecules and irradiated polymers. Chapters 22 to 24 tackle the radiation-induced changes in nuclear chain reaction, while Chapter 25 discusses the irradiation of polymers in solution where both direct and indirect effects occur. The next series of chapters details the theoretical aspects of reactions between the initial acts of ionization or excitation. The last two chapters cover the conductivity change at low radiation intensities, along with the data on radiation damage at very high intensities. The book will be of great interest to researchers and practitioners from the field of nuclear science and polymer technology.

Vistas in Astronomy

  • 1st Edition
  • January 1, 1960
  • Arthur Beer
  • English
  • eBook
    9 7 8 - 1 - 4 8 3 2 - 2 2 2 3 - 3
Vistas in Astronomy, Volume 3 covers the spectacular and interesting developments in the field of astronomy. This book is organized into two main sections encompassing 18 chapters. The first part deals first with the forces that influence stellar dynamics, followed by intensive discussion on the rediscovery of planet Neptune, the concept of Einstein's light-deflection, and design requirements for large telescopes. This part also presents several astronomical instruments, Auroral investigation techniques, and observations of the Russian satellites. The second part starts with surveys of the developments of a photoelectric technique for determination of radial velocities. This part further examines the emission lines excitation in the spectra of early-type stars, as well as the color, luminosity, and evolution of the stars. Topics on star formation, galactic magnetic field, and aspects of cosmology are also covered. This book is an ideal source for astronomers, and space engineers and researchers.

Resonance Absorption in Nuclear Reactors

  • 1st Edition
  • January 1, 1960
  • Lawrence Dresner
  • R. A. Charpie + 1 more
  • English
  • eBook
    9 7 8 - 1 - 4 8 3 2 - 2 2 7 2 - 1
Reactor Design Physics, Volume 4: Resonance Absorption in Nuclear Reactors provides a systematic and detailed exposition of the theory of resonance absorption in nuclear reactors. This book is composed of eight chapters, and begins with a brief historical review of the subject. The second chapter deals with the resonance absorption in homogeneous media and with an alternative method of obtaining some of the formula, while the third chapter considers the natural and Doppler broadened fine shapes, as well as explicit formula for resonance absorption in homogeneous media. The succeeding chapters discuss some results of transport theory necessary for the study of the resonance absorption problem in heterogeneous media and the estimation of the errors introduced by the various simplifying assumptions. The final chapters examine the special topics of the Dancoff effect and the estimation of absorption in unresolved resonances. This book will prove useful to nuclear physicists and design engineers.

Atomic Radiation and Polymers

  • 1st Edition
  • January 1, 1960
  • A. Charlesby
  • A. Charlesby
  • English
  • eBook
    9 7 8 - 1 - 4 8 3 2 - 2 2 7 9 - 0
Radiation Effects in Materials, Volume 1: Atomic Radiation and Polymers considers the theoretical and experimental studies on the association between polymers and atomic radiation. The use of radiation in polymer science constitutes a powerful tool for the quantitative study of macromolecules. This book consists of 31 chapters, and starts with a brief introduction to fundamentals of atomic radiation and polymer structure. The next chapters focus on some aspect of atomic radiation, including radiation units, radiation-matter interaction, and nuclear and electrical sources of radiation. A chapter presents the appropriate methods to study radiation chemistry and polymer. Considerable chapters are devoted to the molecular structure, chemistry, and reactions of polymers. This volume also describes some significant chemical changes of radiation. Other chapters explore the properties and reactions of various irradiated polymers. The remaining chapters deal with radiation protection effects in polymers, which are processes wherein small changes in chemical structure within a molecule or in its neighborhood can exert a disproportionately large influence on the overall chemical reactions. This book is of value to nuclear and solid state physicists, organic and polymer chemists, and nuclear engineers and radiobiologists.

Vacuum Technology Transactions

  • 1st Edition
  • January 1, 1960
  • C. Robert Meissner
  • English
  • eBook
    9 7 8 - 1 - 4 8 3 2 - 2 3 5 5 - 1
Vacuum Technology Transactions covers the proceedings of the Sixth National Symposium on Vacuum Technology Transactions, held in Philadelphia on October 7-9, 1959, sponsored by the American Vacuum Society. This book is organized into eight parts encompassing 57 chapters. The opening part deals with the important role of spectroscopic studies in vacuum science, particularly in ultra-high-vacuum investigations. The next parts describe the production, design, and requirements of ultra-high-vacuum systems; methods of measurement and applications of vacuum systems; and the application of vacuum technology in various scientific fields. The remaining parts are devoted to thin films and their application, vacuum system components, as well as the design considerations and use of getter-ion pumps in vacuum systems. Non-specialized and specialized engineers will find this book rewarding.

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