Problems of Solar and Stellar Oscillations

Problems of Solar and Stellar Oscillations PDF Author: D.O. Gough
Publisher: Springer Science & Business Media
ISBN: 9400970889
Category : Science
Languages : en
Pages : 480

Get Book Here

Book Description
D. O. GOUGH Institute of Astronomy. Madingley Road. Cambridge. U. K. IAU Colloquium 66 on 'Problems of Solar and Stellar Oscillations' was held at the Crimean Astrophysical Observatory, U. S. S. R. , on 1-5 September, 1981. The principal purpose of the colloquium was to study the low-amplitude oscillations of the Sun and, to a lesser extent, to consider similar oscillations of other stars. Much of the emphasis of the discussions was on the diagnostic value of the oscilla tions. In the last few years we have become aware that the frequencies of the five-minute modes of high degree, which constitute the major component of the oscillations discovered twenty years ago by Evans and Michaud, can be used to put quite tight bounds on the stratification of the solar convection zone. These permit a calibration of solar models computed from so-called standard evolution theory. Modes of low degree penetrate beneath the convection zone to the core of the Sun, and can in principle test the evolution theory. Therefore there was considerable interest in the reports of the latest observations of such modes. Broadly speaking, those observations confirm the cali bration by the high-degree modes, but there remain some systematic discrepancies that demand some revision of the theory. Besides the gross aspects of evolution theory, there are also more intricate details to be understood.

Problems of Solar and Stellar Oscillations

Problems of Solar and Stellar Oscillations PDF Author: D.O. Gough
Publisher: Springer Science & Business Media
ISBN: 9400970889
Category : Science
Languages : en
Pages : 480

Get Book Here

Book Description
D. O. GOUGH Institute of Astronomy. Madingley Road. Cambridge. U. K. IAU Colloquium 66 on 'Problems of Solar and Stellar Oscillations' was held at the Crimean Astrophysical Observatory, U. S. S. R. , on 1-5 September, 1981. The principal purpose of the colloquium was to study the low-amplitude oscillations of the Sun and, to a lesser extent, to consider similar oscillations of other stars. Much of the emphasis of the discussions was on the diagnostic value of the oscilla tions. In the last few years we have become aware that the frequencies of the five-minute modes of high degree, which constitute the major component of the oscillations discovered twenty years ago by Evans and Michaud, can be used to put quite tight bounds on the stratification of the solar convection zone. These permit a calibration of solar models computed from so-called standard evolution theory. Modes of low degree penetrate beneath the convection zone to the core of the Sun, and can in principle test the evolution theory. Therefore there was considerable interest in the reports of the latest observations of such modes. Broadly speaking, those observations confirm the cali bration by the high-degree modes, but there remain some systematic discrepancies that demand some revision of the theory. Besides the gross aspects of evolution theory, there are also more intricate details to be understood.

Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference

Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference PDF Author:
Publisher:
ISBN:
Category : Lasers
Languages : en
Pages : 280

Get Book Here

Book Description


Pulsations in Classical and Cataclysmic Variable Stars

Pulsations in Classical and Cataclysmic Variable Stars PDF Author: John P. Cox
Publisher:
ISBN:
Category : Cataclysmic variable stars
Languages : en
Pages : 380

Get Book Here

Book Description


Guide for the Care and Use of Laboratory Animals

Guide for the Care and Use of Laboratory Animals PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309154006
Category : Science
Languages : en
Pages : 246

Get Book Here

Book Description
A respected resource for decades, the Guide for the Care and Use of Laboratory Animals has been updated by a committee of experts, taking into consideration input from the scientific and laboratory animal communities and the public at large. The Guide incorporates new scientific information on common laboratory animals, including aquatic species, and includes extensive references. It is organized around major components of animal use: Key concepts of animal care and use. The Guide sets the framework for the humane care and use of laboratory animals. Animal care and use program. The Guide discusses the concept of a broad Program of Animal Care and Use, including roles and responsibilities of the Institutional Official, Attending Veterinarian and the Institutional Animal Care and Use Committee. Animal environment, husbandry, and management. A chapter on this topic is now divided into sections on terrestrial and aquatic animals and provides recommendations for housing and environment, husbandry, behavioral and population management, and more. Veterinary care. The Guide discusses veterinary care and the responsibilities of the Attending Veterinarian. It includes recommendations on animal procurement and transportation, preventive medicine (including animal biosecurity), and clinical care and management. The Guide addresses distress and pain recognition and relief, and issues surrounding euthanasia. Physical plant. The Guide identifies design issues, providing construction guidelines for functional areas; considerations such as drainage, vibration and noise control, and environmental monitoring; and specialized facilities for animal housing and research needs. The Guide for the Care and Use of Laboratory Animals provides a framework for the judgments required in the management of animal facilities. This updated and expanded resource of proven value will be important to scientists and researchers, veterinarians, animal care personnel, facilities managers, institutional administrators, policy makers involved in research issues, and animal welfare advocates.

Observation of Long-lived Neutral V Particles

Observation of Long-lived Neutral V Particles PDF Author:
Publisher:
ISBN:
Category : Particles (Nuclear physics)
Languages : en
Pages : 13

Get Book Here

Book Description


Nuclear Science Abstracts

Nuclear Science Abstracts PDF Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 930

Get Book Here

Book Description


Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1050

Get Book Here

Book Description


The Transmission Electron Microscope

The Transmission Electron Microscope PDF Author: Khan Maaz
Publisher: BoD – Books on Demand
ISBN: 9535121502
Category : Science
Languages : en
Pages : 362

Get Book Here

Book Description
This book The Transmission Electron Microscope abundantly illustrates necessary insight and guidance of this powerful and versatile material characterization technique with complete figures and thorough explanations. The second edition of the book presents deep understanding of new techniques from introduction to advance levels, covering in-situ transmission electron microscopy, electron and focused ion beam microscopy, and biological diagnostic through TEM. The chapters cover all major aspects of transmission electron microscopy and their uses in material characterization with special emphasis on both the theoretical and experimental aspects of modern electron microscopy techniques. It is believed that this book will provide a solid foundation of electron microscopy to the students, scientists, and engineers working in the field of material science and condensed matter physics.

Cognitive infocommunications

Cognitive infocommunications PDF Author: Anna Esposito
Publisher: Frontiers Media SA
ISBN: 2832519032
Category : Science
Languages : en
Pages : 141

Get Book Here

Book Description


Lepton Photon Interactions At High Energies (Lepton Photon 2017) - Proceedings Of The 28th International Symposium

Lepton Photon Interactions At High Energies (Lepton Photon 2017) - Proceedings Of The 28th International Symposium PDF Author: Wei Wang
Publisher: World Scientific
ISBN: 9811207410
Category : Science
Languages : en
Pages : 576

Get Book Here

Book Description
The latest of the 'Lepton Photon' symposium, one of the well-established series of meetings in the high-energy physics community, was successfully organized at the South Campus of Sun Yat-sen University, Guangzhou, China, from August 7-12, 2017, where physicists around the world gathered to discuss the latest advancements in the research field.This proceedings volume of the Lepton Photon 2017 collects contributions by the plenary session speakers and the posters' presenters, which cover the latest results in particle physics, nuclear physics, astrophysics, cosmology, and plans for future facilities.