A Compendium Of Papers In The Fields Of Wave Propagation And Geotechnics Prepared At Afcrl During 1963

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A Compendium of Papers in the Fields of Wave Propagation and Geotechnics Prepared at AFCRL During 1963

Author : Owen W. Williams
Publisher :
ISBN 13 :
Total Pages : 122 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis A Compendium of Papers in the Fields of Wave Propagation and Geotechnics Prepared at AFCRL During 1963 by : Owen W. Williams

A Compendium of Papers in the Fields of Wave Propagation and Geotechnics Prepared at AFCRL During 1963

Author : Owen W. Williams
Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis A Compendium of Papers in the Fields of Wave Propagation and Geotechnics Prepared at AFCRL During 1963 by : Owen W. Williams

Download or read book A Compendium of Papers in the Fields of Wave Propagation and Geotechnics Prepared at AFCRL During 1963 written by Owen W. Williams and published by . This book was released on 1964 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: CONTENTS: Wave propagation (seismology): The layer-matrix method in seismic wave propagation problems; mechanical properties of the earth's upper mantle; full field seismic modelling; some elementary considerations on the use of multiple discrimination criteria in the seismic identification of underground explosions. Geotechnics: Interpretation of geologic properties of desert playas from aerial photography; pictorial section; appendices which provide tabulations of additional papers published during 1963 in the fields of seismology and geology by AFCRL scientists as well as those published by contractor personnel.

The AFCRL 29-ft Millimeter-wave Antenna

Author : L. M. Keane
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis The AFCRL 29-ft Millimeter-wave Antenna by : L. M. Keane

Download or read book The AFCRL 29-ft Millimeter-wave Antenna written by L. M. Keane and published by . This book was released on 1965 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: A general description of AFCRL's new 29-ft parabolic antenna is given. This antenna, designed for operation at 35 Gc, has Cassegrain feed optics and a precise reflecting surfdce supported on an elevation over azimuth mount. Design parameters include a gain of 67.5 dB at 35 Gc and a pointing capability of better than =1 arc min under 30-knot wind loads, normal solar loading, and peak accelerations of .012 deg/sq sec. The servo system was designed primarily to track objects traveling at sidereal rates. A limited satellite tracking capability should exist, however. Emphasis is given to engineering aspects of the tower, mount, drive system, and reflector assembly which should provide efficient rf operation and extreme precision in pointing. (Author).

Technical Abstract Bulletin

Author :
Publisher :
ISBN 13 :
Total Pages : 684 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Technical Abstract Bulletin by :

Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Earth Science Applied to Military Use of Natural Terrain

Author : Stanley M. Needleman
Publisher :
ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Earth Science Applied to Military Use of Natural Terrain by : Stanley M. Needleman

Download or read book Earth Science Applied to Military Use of Natural Terrain written by Stanley M. Needleman and published by . This book was released on 1969 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: A survey of the state-of-the-art in the evaluation of natural terrain by earth-science techniques and measurement systems is presented in response to a need that existed for many years. This report considers the terrain as an envelope of the environment and all related parameters that are basic in an evaluation for relevant military applications such as unimproved landing areas, trafficability, site selection for operational facilities, terrain reconnaissance and surveillance, and target detection within a masked terrain complex. Methods of terrain-data acquisition, analysis, and evaluation and their limitations are reviewed. The status of research and development, specifying the gaps in technology, is summarized with accompanying conclusions. The report forecasts the requirement for an automated terrain-data acquisition, storage, and display system. Information pertaining to the classification of terrain data, field devices to measure bearing strength, and a visualized optimum remote sensing system is also given in the appendix. A glossary and a comprehensive bibliography are included. (Author).

US-IGY Drifting Station Alpha, Arctic Ocean, 1957-1958

Author : Gerry H. Cabaniss
Publisher :
ISBN 13 :
Total Pages : 336 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis US-IGY Drifting Station Alpha, Arctic Ocean, 1957-1958 by : Gerry H. Cabaniss

Download or read book US-IGY Drifting Station Alpha, Arctic Ocean, 1957-1958 written by Gerry H. Cabaniss and published by . This book was released on 1965 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Look Into the Future of Radar Scattering Research and Development

Author : W. F. Bahret
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis A Look Into the Future of Radar Scattering Research and Development by : W. F. Bahret

Download or read book A Look Into the Future of Radar Scattering Research and Development written by W. F. Bahret and published by . This book was released on 1965 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Introduction to Radar Cross-section Measurements

Author : P. Blacksmith (Jr.)
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Introduction to Radar Cross-section Measurements by : P. Blacksmith (Jr.)

Download or read book Introduction to Radar Cross-section Measurements written by P. Blacksmith (Jr.) and published by . This book was released on 1965 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Bibliography of Experimental Rock Deformation, Second Edition

Author : Robert E. Riecker
Publisher :
ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Bibliography of Experimental Rock Deformation, Second Edition by : Robert E. Riecker

Download or read book Bibliography of Experimental Rock Deformation, Second Edition written by Robert E. Riecker and published by . This book was released on 1965 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first supplement to the 'Bibliography of Experimental Rock Deformation, Second Edition, ' (AD-627 002) AFCRL-65-740, October 1965, lists 111 cross-referenced research articles taken from scientific journals and books. The listings include the following 29 categories: Apparatus, Brittle Behavior, Calcite, Calibration, Conductivity, Creep, Dislocations, Fabric, Friction, General, Ice, Marble, Olivine, Phase Studies, Quartz, Recrystallization, Resistance, Sedimentary Rocks, Seismic Velocities, Shear, Shock, Strain Rate, Surveys, Viscosity, and X-ray. (Author).

A Family Outbreak of Severe Local Storms

Author : K. A. Browning
Publisher :
ISBN 13 :
Total Pages : 358 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis A Family Outbreak of Severe Local Storms by : K. A. Browning

Download or read book A Family Outbreak of Severe Local Storms written by K. A. Browning and published by . This book was released on 1965 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph is a case study of an outbreak of severe local storms that produced several tornadoes and extensive large hail in Oklahoma on 26 May 1963. Several authors have combined to describe the organization, structure, and evolution of these storms from a number of points of view. The storms are analyzed on four different size scales: (1) as products of their large-scale environment, (2) as members of a mesoscale system or family unit, (3) as individual evolving cells, and (4) as tornado and hail factories, with the emphasis on the tornadoes and the hailstones themselves. Data are obtained from conventional synoptic and mesosynoptic networks, visual and photographic observations, surface weather surveys, weather radars, sferics detectors, balloon tracks, radioactivity measurements in precipitation, and hailstone thin sections. Simple models are presented describing the airflow, structure and life cycle of individual severe local storms. (Author)

Tables Related to Light Scattering in a Turbid Atmosphere

Author : E. DeBary
Publisher :
ISBN 13 :
Total Pages : 242 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Tables Related to Light Scattering in a Turbid Atmosphere by : E. DeBary

Download or read book Tables Related to Light Scattering in a Turbid Atmosphere written by E. DeBary and published by . This book was released on 1965 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: The tables present the results of computations of the intensity and the degree of polarization of sky radiation and radiation scattered by a unit volume of air containing natural aerosols. The tabulated data are based upon new values of the scattering functions i sub 1 and i sub 2 and the scattering cross sections k, derived using the Mie theory with m = 1.5. In the case of primary scattering of radiation, the results are valid for a turbid atmosphere. The tables of the scattering coefficients and optical thickness, the absolute scattering functions, the intensities, and the degrees of polarization are computed for various wavelengths between 0.4 and 1.2 microns and for discrete scattering angles between 0 degrees and 180 degrees. Aerosol size distributions of the form dn(r) = c.r/v dlogr, with v = 2.5, 3.0, and 4.0, are assumed. The lower and upper limits for the size range were chosen as r sub 1 = 0.04, 0.06, and 0.08 micron and r sub 2 = 3, 5, and 10 microns respectively. (Author).

Study of Ferrimagnetic Crystals by Parallel Pumping

Author : James C. Sethares
Publisher :
ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Study of Ferrimagnetic Crystals by Parallel Pumping by : James C. Sethares

Download or read book Study of Ferrimagnetic Crystals by Parallel Pumping written by James C. Sethares and published by . This book was released on 1965 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of single-crystal ferrimagnetic crystals at microwave frequencies was conducted. The parallel pumping technique was used to experimentally measure spin-wave line width, magnetoelastic coupling constants, energy exchange constants, and phonon linewidths. The experiments were carried out at 300K, 194K, 77K, and 4.2K at X- and K-band frequencies. Four samples of pure, single-crystal yttrium iron garnet (one disk, and three spheres) were extensively investigated. Conditions for optimum detection sensitivity of spin-wave instability measurement are given and discussed. The theory of parallel pumping is explained and worked out in detail. Expressions are obtained for spin-wave and phonon linewidths, magnetoelastic constants and exchange constants in terms of experimentally measured quantities. A literature search was made for publications dealing with parallel-pumping phenomena. These articles (over 75) are abstracted for their contents relative to this investigation. (Author).

Atmospheric Water Vapor Divergence

Author : Arnold A. Barnes
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Atmospheric Water Vapor Divergence by : Arnold A. Barnes

Download or read book Atmospheric Water Vapor Divergence written by Arnold A. Barnes and published by . This book was released on 1965 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Ultrapurification, Its Attainment and Analysis

Author : A. F. Armington
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Ultrapurification, Its Attainment and Analysis by : A. F. Armington

Download or read book Ultrapurification, Its Attainment and Analysis written by A. F. Armington and published by . This book was released on 1965 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Geophysical Implications of Shear Deformation in Rocks

Author : Robert E. Riecker
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Geophysical Implications of Shear Deformation in Rocks by : Robert E. Riecker

Download or read book Geophysical Implications of Shear Deformation in Rocks written by Robert E. Riecker and published by . This book was released on 1965 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Airglow Calibrations Symposium

Author : G. J. Hernandez
Publisher :
ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Airglow Calibrations Symposium by : G. J. Hernandez

Download or read book Airglow Calibrations Symposium written by G. J. Hernandez and published by . This book was released on 1964 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Observations on Solar Flares

Author : John T. Jefferies
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Observations on Solar Flares by : John T. Jefferies

Download or read book Observations on Solar Flares written by John T. Jefferies and published by . This book was released on 1965 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Various aspects of solar flares such as dynamic phenomena, the relation to magnetic fields, electromagnetic radiations, particle emissions, and flare loops are discussed with attempts at classification in terms of observable effects. Discrepancies in defining the mechanisms that must exist stress the need for further observations. (Author).