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  • 1
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    The piezomagnetic computation of magnetic anomalies due to ground loading by a man-made lake (1974)
    In:  Pageoph, London, Army Corps of Engineers, Woodward-Clyde Consultants, vol. 112, no. B12, pp. 811-818, pp. 1013, (ISBN: 0-12-018847-3)
    Details
    Publication Date: 1974
    Keywords: Geomagnetics ; Induced seismicity ; Tectonics
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    Stresses within an active volcano - with particular reference to Kilauea (1974)
    In:  Tectonophys., London, Army Corps of Engineers, Woodward-Clyde Consultants, vol. 22, no. B12, pp. 363-375, pp. 1013, (ISBN: 0-12-018847-3)
    Details
    Publication Date: 1974
    Keywords: Elasticity theory of dislocations ; Dislocation ; Volcanology ; Crustal deformation (cf. Earthquake precursor: deformation or strain) ; StressS
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    BIBLIOGRAPHY SEISMOLOGY
  • 3
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    A flash photolysis-resonance fluorescence kinetics study of the reaction S/3P/ + OCS (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Using the technique of flash photolysis-resonance fluorescence, the reaction of ground-state atomic sulfur with carbonyl sulfide has been investigated over the temperature range from 233 to 445 K. Over this temperature range, the experimental data were fitted to an Arrhenius equation of the form k sub 1 = (1.52 plus or minus 0.20) x 10 to the minus 12th power exp(-3.63 plus or minus 0.12 kcal/mol/RT) cu cm/molecule/sec. A comparison of these results with previous investigations on this reaction system is presented.
    Keywords: CHEMISTRY
    Type: Journal of Physical Chemistry; 78; June 6
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Interactive design of large end rings on stiffened conical shells using composites (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Design study methods and results for a composite reinforced base ring for the conical aeroshell structure of the planetary lander vehicle for Project Viking, an unmanned mission to Mars, are presented. The aeroshell is a ring and stringer-stiffened conical shell structure having a half angle of 70 degrees with a large base ring mounted at the outer edge of the cone and a large pay-load ring in the interior with many smaller rings spaced along the inside shell surface. The purpose of the structure is to develop the aerodynamic drag required to decelerate the lander in the Mars atmosphere to facilitiate a soft landing. The design of a shell structure of this complexity requires the use of the latest technology available in a large general-purpose shell buckling program. The large general-purpose non-linear shell buckling program (BOSOR 2) which was used for this purpose is described.
    Keywords: STRUCTURAL MECHANICS
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Solar-energy conversion system provides electrical power and thermal control for life-support systems (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: System utilizes Freon cycle and includes boiler turbogenerator with heat exchanger, regenerator and thermal-control heat exchangers, low-pressure and boiler-feed pumps, and condenser. Exchanger may be of interest to engineers and scientists investigating new energy sources.
    Keywords: MECHANICS
    Type: MFS-21628
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    Detection of the J = 1 to 0 rotational transition of vibrationally excited silicon monoxide (1974)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: The v = 1,J = 1 to 0 rotational transition of SiO at 43.1 GHz has been detected in the direction of Becklin's star in the Orion Nebula, and in the M-type star W Hya. In Orion two velocity components are observed, one (the stronger) at a radial velocity of 17 km/sec, the other at -7 km/sec; in W Hya a single line is observed at 39 km/sec. In each case a line at the same radial velocity has been observed at 86.2 GHz in the v = 1,J = 2 to 1 transition, so that the presence of vibrationally excited SiO would seem to be confirmed beyond a reasonable doubt. In the v = 1 state, the photon fluxes of the J = 2 to 1 and 1 to 0 transitions are about equal, suggesting saturated masers occupying the same region of space.
    Keywords: SPACE SCIENCES
    Type: Astrophysical Journal; 192; Aug. 15
    Format: text
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    NASA TECHNICAL REPORTS
  • 7
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    The planetary magnetic field and magnetosphere of Jupiter - Pioneer 10 (1974)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Data obtained by the Pioneer 10 vector helium magnetometer are presented along with models of the intrinsic magnetic field of Jupiter and its magnetosphere. Data acquired between 2.84 and 6.0 Jupiter radii, where the intensity of the planetary field ranged between 1900 and 18,400 gamma, were used to develop a six-parameter eccentric dipole model of the field. The dipole so derived has a moment of 4.0 G (R sub J) cubed and a tilt angle with respect to Jupiter's rotation axis of 11 deg. A model of the Jovian magnetosphere is presented in which the essential feature is an eastward current sheet that forms an annulus with Jupiter at the center. At large distances from the planet the current sheet is nearly parallel to Jupiter's equator but, in general, does not lie in it. The current sheet is warped, so that it is above the equator on one side and below it on the other. The current sheet rotates with the planet, more or less like a rigid body, this behavior causes an apparent up and down motion and periodic crossings of the current sheet by Pioneer.
    Keywords: SPACE SCIENCES
    Type: Journal of Geophysical Research; 79; Sept. 1
    Format: text
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    NASA TECHNICAL REPORTS
  • 8
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    Study of a small magnetospheric substorm (1974)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Data from a rocket launched into the expansion phase of an auroral substorm have been compared with data from numerous ground stations and several space vehicles. It is shown that this magnetic and auroral substorm has most of the features of larger substorms; thus it is implied that the same plasma processes are involved in all substorms. Some evidence is presented to link the auroral breakup with the field lines conjugate to the inner edge of the plasma sheet. The implications of these two results for substorm morphology and the triggering mechanism of the substorm instability are discussed. It is concluded that spatial gradients in plasma temperature are a likely cause.
    Keywords: GEOPHYSICS
    Type: Journal of Geophysical Research; 79; Apr. 1
    Format: text
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    NASA TECHNICAL REPORTS
  • 9
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    Tracking air-dropped drogues and dyes from aircraft in support of ERTS-1 circulation studies (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The author has identified the following significant results. For two years ERTS-1 has been employed to investigate current circulation patterns in Delaware Bay under different tidal, flow, and wind conditions. Since sufficient numbers of current meters and boats are not available, air-droppable drogues and dye packs have been developed and tested. The drogues consist of a styrofoam float and a line to which is attached a stainless steel biplane. The length of the line determines at what depth currents will be monitored. The floats are color coded to distinguish their movement and mark the depth of the biplanes. Simultaneously floating and anchored dye packs of fluorescein dye have been deployed from aircraft. The movement of the dye and drogues is tracked by sequential aerial photography, using fixed markers on shore or on buoys as reference points to calibrate the scale and direction of drogue movement. The current data obtained by this technique is then used to annotate current circulation maps derived from ERTS-1 imagery.
    Keywords: GEOPHYSICS
    Type: E74-10747 , NASA-CR-139987
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 10
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    Supplement no. 1 to the January 1974 report on active and planned spacecraft and experiments (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Updated information and descriptions on spacecraft and experiments are listed according to spacecraft name and principle experimental investigator. A cumulative index of active and planned spacecraft and experiments is provided; bar graph indexes for electromagnetic radiation experiments are included in table form.
    Keywords: SPACE SCIENCES
    Type: NASA-TM-X-69913 , NSSDC/WDC-A-R/S-74-12
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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