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Acoustic Absorption Coefficients of Human Body Surfaces

Acoustic Absorption Coefficients of Human Body Surfaces
Author: EUGENE. ACKERMAN
Publisher:
Total Pages: 25
Release: 1962
Genre: Absorption of sound
ISBN:

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Reverberation chamber decay times were measured with and without human body surfaces exposed to the sound field. From these measurements, acoustic absorption coefficients were computed for human body surfaces. These were small compared to similar coefficients for laboratory animals. Typical values for the absorption coefficients measured for human body surfaces were in the range of 1 to 2 percent. Little variation was found from 1 to 20 kc. Measurements wd with other values obtained by different methods.


Propagation of Sound in Air

Propagation of Sound in Air
Author: John W. Wescott
Publisher:
Total Pages: 650
Release: 1965
Genre: Air
ISBN:

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This bibliography contains several thousand abstracts from the unclassified literature on the propagation of sound in air. The subject is treated in depth for the years 1929 to 1963. Some abstracts on earlier works of lasting interest and many abstracts from English translations of foreign journals are included. The abstracts are grouped according to subject matter. Subject and author indexes are furnished. Accessions Document (AD and earlier ATI) numbers used by both the Defense Documentation Center (formerly ASTIA) and the Office of Technical Services (OTS) are furnished wherever possible. (Author).


Bibliography of Research Reports and Publications

Bibliography of Research Reports and Publications
Author: Aerospace Medical Research Laboratories (U.S.). Biodynamics and Bionics Division
Publisher:
Total Pages: 58
Release: 1963
Genre: Hearing
ISBN:

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Guide for the Care and Use of Laboratory Animals

Guide for the Care and Use of Laboratory Animals
Author: National Research Council
Publisher: National Academies Press
Total Pages: 246
Release: 2011-01-27
Genre: Science
ISBN: 0309154006

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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.