Download or read book Use of a Coherent Frequency Synthesizer in Echo Sounder Studies of Deep Scattering Layers written by Paul T. McElroy and published by . This book was released on 1972 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: A coherent frequency synthesizer under computer control is used to generate a pulse train which is power amplified and drives a UQN transducer. A pulse train at the two frequencies, 9.5 and 17kHz, is used to examine the deep scattering layers at 35 degrees 00 min N, 48 degrees 00 min W during the sunset migration. Striking differences in the scattering returns, as displayed on a facsimile recorder, show the utility of this method for increased frequency coverage in studies of deep scattering layers. (Author).

Download or read book Library of Congress Subject Headings written by Library of Congress and published by . This book was released on 2013 with total page 1708 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Library of Congress Subject Headings written by Library of Congress. Subject Cataloging Division and published by . This book was released on 1980 with total page 1326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Book Catalog of the Library and Information Services Division Subject index written by Environmental Science Information Center. Library and Information Services Division and published by . This book was released on 1977 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Library of Congress Subject Headings written by Library of Congress. Cataloging Policy and Support Office and published by . This book was released on 2009 with total page 1688 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Library of Congress Catalog written by Library of Congress and published by . This book was released on 1970 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning with 1953, entries for Motion pictures and filmstrips, Music and phonorecords form separate parts of the Library of Congress catalogue. Entries for Maps and atlases were issued separately 1953-1955.

Download or read book Library of Congress Catalogs written by Library of Congress and published by . This book was released on 1976 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Library of Congress Subject Headings Supplements 1966 1971 Cumulation written by Library of Congress. Subject Cataloging Division and published by . This book was released on 1972 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt: