Download or read book The Index of Training Films written by B.S. Inc and published by Рипол Классик. This book was released on with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index of Administrative Publications written by United States. Department of the Army and published by . This book was released on 1978 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Training Films and Filmstrips written by California State Personnel Board. Training Division and published by . This book was released on 1969 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Keyword Index to Training Resources in Aging written by and published by . This book was released on 1980 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Navy Directives System Consolidated Subject Index of Unclassified Instructions Period Ending written by United States. Navy Publications and Printing Service and published by . This book was released on 1962 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Military Publications written by United States. Department of the Army and published by . This book was released on 1977 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research in Education written by and published by . This book was released on 1974 with total page 1262 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book by United States Introduction to sonar written by United States. Bureau of Naval Personnel and published by Lulu.com. This book was released on 2018-09-29 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: SONAR (sound navigation and ranging) systems have many similarities to RADAR and electro-optical systems. Again, detection is based on the propagation of waves between the target and detector. There are active sonar systems, where the wave propagates from the transmitter to the target and back to the receiver, analogous to pulse-echo radar. There are also passive sonar systems, where the target is the source of the energy which propagates to the receiver, analogous to passive infrared detection. Therefore, a great deal of what has been discussed about these systems will also apply to sonar. Sonar, however, differs fundamentally from radar and electro-optics because the energy is transferred by acoustics waves propagating in water. So we first begin by discussing the characteristics of acoustic waves.

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Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1953 with total page 1872 pages. Available in PDF, EPUB and Kindle. Book excerpt: