Sonic Booms In The Sea

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Sonic Booms in the Sea

Robert J Urick
Sonic Booms in the Sea Book PDF

Author : Robert J Urick
Publisher : Unknown
Page : 32 pages
File Size : 48,9 Mb
Release : 1971
Category : Airplanes
ISBN : UCSD:31822016507253

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Sonic Booms in the Sea by Robert J Urick Pdf

Sonic booms laid down by Navy fighter aircraft flying at Mach 1.1-1.2 have been observed below the surface of the sea by means of a string of hydrophones 195 feet long dangling from a surface ship. The underwater booms were found to decay about as the -3/2 power of the depth below the surface, to have the same spectral content as the boom in air, and to travel down the string with the velocity of sound in water. These findings contradict the theory of an 'inhomogeneous' wave incident beyond the critical angle, as originally stated by Rayleigh and as recently extended to sonic booms by Sawyers and Cook. They suggest, instead, that the underwater sonic boom is a wave scattered by the rough sea surface into the sea below. Its decay with depth is so rapid that it is not likely to be perceptible against the ambient noise background at depths greater than one or two thousand feet in the deep sea. (Author).

Federal Register

Anonim
Federal Register Book PDF

Author : Anonim
Publisher : Unknown
Page : 372 pages
File Size : 44,7 Mb
Release : 2014
Category : Delegated legislation
ISBN : UCR:31210024770784

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Federal Register by Anonim Pdf

High-Speed Dreams

Erik M. Conway
High Speed Dreams Book PDF

Author : Erik M. Conway
Publisher : JHU Press
Page : 404 pages
File Size : 50,9 Mb
Release : 2008-11-03
Category : Science
ISBN : 9781421410432

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High-Speed Dreams by Erik M. Conway Pdf

In High-Speed Dreams, Erik M. Conway constructs an insightful history that focuses primarily on the political and commercial factors responsible for the rise and fall of American supersonic transport research programs. Conway charts commercial supersonic research efforts through the changing relationships between international and domestic politicians, military/NASA contractors, private investors, and environmentalists. He documents post-World War II efforts at the National Advisory Committee on Aeronautics and the Defense Department to generate supersonic flight technologies, the attempts to commercialize these technologies by Britain and the United States during the 1950s and 1960s, environmental campaigns against SST technology in the 1970s, and subsequent attempts to revitalize supersonic technology at the end of the century. High-Speed Dreams is a sophisticated study of politics, economics, nationalism, and the global pursuit of progress. Historians, along with participants in current aerospace research programs, will gain valuable perspective on the interaction of politics and technology.

Code of Federal Regulations

Anonim
Code of Federal Regulations Book PDF

Author : Anonim
Publisher : Unknown
Page : 922 pages
File Size : 46,5 Mb
Release : 1990
Category : Administrative law
ISBN : UOM:39015026651268

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Code of Federal Regulations by Anonim Pdf

The Code of Federal Regulations of the United States of America

Anonim
The Code of Federal Regulations of the United States of America Book PDF

Author : Anonim
Publisher : Unknown
Page : 452 pages
File Size : 46,6 Mb
Release : 1987
Category : Administrative law
ISBN : STANFORD:36105063474345

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The Code of Federal Regulations of the United States of America by Anonim Pdf

The Code of Federal Regulations is the codification of the general and permanent rules published in the Federal Register by the executive departments and agencies of the Federal Government.

Predicting Outdoor Sound

Keith Attenborough,Timothy Van Renterghem
Predicting Outdoor Sound Book PDF

Author : Keith Attenborough,Timothy Van Renterghem
Publisher : CRC Press
Page : 690 pages
File Size : 45,9 Mb
Release : 2021-03-07
Category : Technology & Engineering
ISBN : 9780429894831

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Predicting Outdoor Sound by Keith Attenborough,Timothy Van Renterghem Pdf

The second edition of Predicting Outdoor Sound is an up-to-date reference on the propagation of sound close to the ground and its prediction. New content includes comparisons between predictions and data for road traffic, railway and wind turbine noise; descriptions of source characteristics in the HARMONOISE model; propagation over rough seas, parallel low walls, and lattices; outlines of numerical methods; gabion (caged stones) and sonic crystal noise barriers; meteorological effects on noise barrier performance; and the prediction requirements for auralization. The book brings together relevant theories, prediction schemes, and data, thereby providing a basis for determining what model or scheme might be applicable for any situation. It also offers a background on useful analytical approximations and the restrictions, as well as difficulties and limitations associated with engineering prediction schemes. The text should be of considerable interest to researchers in outdoor sound propagation and, more generally, it should provide a comprehensive primer on the topic for lecturers, consultants and students in acoustics and noise control.

Congressional Record

United States. Congress
Congressional Record Book PDF

Author : United States. Congress
Publisher : Unknown
Page : 1350 pages
File Size : 42,7 Mb
Release : 1971
Category : Law
ISBN : HARVARD:32044116494006

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Congressional Record by United States. Congress Pdf

The Congressional Record is the official record of the proceedings and debates of the United States Congress. It is published daily when Congress is in session. The Congressional Record began publication in 1873. Debates for sessions prior to 1873 are recorded in The Debates and Proceedings in the Congress of the United States (1789-1824), the Register of Debates in Congress (1824-1837), and the Congressional Globe (1833-1873)

Kennedy Space Center, Operations

Anonim
Kennedy Space Center Operations Book PDF

Author : Anonim
Publisher : Unknown
Page : 390 pages
File Size : 52,5 Mb
Release : 1980
Category : Electronic
ISBN : NWU:35556030151088

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Kennedy Space Center, Operations by Anonim Pdf

The Supersonic Transport

United States. Congress. Joint Economic Committee. Subcommittee on Priorities and Economy in Government
The Supersonic Transport Book PDF

Author : United States. Congress. Joint Economic Committee. Subcommittee on Priorities and Economy in Government
Publisher : Unknown
Page : 250 pages
File Size : 55,7 Mb
Release : 1973
Category : Supersonic transport planes
ISBN : UIUC:30112106910570

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The Supersonic Transport by United States. Congress. Joint Economic Committee. Subcommittee on Priorities and Economy in Government Pdf