ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • ENERGY PRODUCTION AND CONVERSION  (452)
  • Industrial Chemistry
  • Seismology
  • 2020-2024
  • 2005-2009
  • 1975-1979  (502)
  • 1950-1954
  • 1977  (502)
  • 1
    Electronic Resource
    Electronic Resource
    Determination of focal coordinates of near earthquakes in an area of unknown crustal parameters (1977)
    Springer
    Pure and applied geophysics 115 (1977), S. 667-673 
    Details
    ISSN: 1420-9136
    Keywords: Seismology ; Hypocenter determination ; Focal coordinate determination ; Near earthquakes location
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary A new computation method is described which determines the focal coordinates, theP n-andP G-velocity, the focal time and the Moho-depth in the case of near earthquakes. The method is provided especially for areas where the crustal parameters are insufficiently known. It presumes that the standard error ofP n-andP G-arrival times is a minimum. The problem turns out to represent the solution of a set of at least seven equations with seven unknown parameters. Four of these unknowns can be separated in advance. This leads to a considerable simplification. The three remaining unknowns are the focal coordinates. Their best fitting values are found by the gradient method. An example is presented which shows how errors can arise if the initial trial coordinate is chosen at an unfavourable position.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00876131
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    A lithospheric model to interpret focal properties of intermediate and shallow shocks in central greece (1977)
    Springer
    Pure and applied geophysics 115 (1977), S. 655-666 
    Details
    ISSN: 1420-9136
    Keywords: Seismology ; Greece ; Plate tectonics ; Focal mechanism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary An attempt has been made to interpret the striking difference, in focal properties, between the intermediate and shallow earthquakes in Central Greece and an observed time sequence of these shocks by a lithospheric model. This model consists of a lithospheric slab descending from the Ionian to the Aegean and a back-arc expanding Aegean lithosphere. Thrust faulting near the top surface of the slab, caused by the sinking of the slab, triggers spreading and normal faulting in the back-arc Aegean region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00876130
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Systematic variations of mean travel-time residuals in space and time (1977)
    Springer
    Pure and applied geophysics 115 (1977), S. 675-692 
    Details
    ISSN: 1420-9136
    Keywords: Seismology ; P wave residuals ; Travel-time anomalies ; Earthquake prediction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary Mean travel-time residuals of P waves for the period 1964–1970 at stations in North America and Europe are well separated into large domains of positive and negative values. The spatial distribution of residuals in North America is in good agreement with the structure of the upper mantle obtained from Rayleigh wave dispersion and is in accord with magnitude anomalies and heat flow data. A systematic variation of residuals in time is found to be sensitive to major changes in the nature of the earthquake source distribution, as for example aftershocks, as well as to changes in methods of detection of first arrivals. Residuals at neighboring stations are correlated up to distances of the order of 2°. Half year mean residuals at stations within 2° distance from the epicenters of strong earthquakes have a sudden jump 1.5 years before the occurrence of an earthquake. A formal algorithm based on this pattern permits prediction of the times of all 16 earthquakes with magnitudeM≥7.5 occurring during the interval 1966–1972. Although the average duration of the alarm periods is about half the total time interval of the catalog, so that the algorithm has no practical importance, these results are statistically significant on a 99% level of confidence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00876132
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    facet.materialart.
    Unknown
    Earthquake stress drops, ambient tectonic stresses and stresses that drive plate motions (1977)
    In:  Pageoph, Luxembourg, Conseil de l'Europe, vol. 115, no. 7055, pp. 441-458, pp. B05S07, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 1977
    Keywords: Seismology ; Stress drop ; Tectonics ; Stress ; Plate tectonics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 5
    facet.materialart.
    Unknown
    Lithospheric slab penetration into the lower mantle beneath the Sea of Okhotsk (1977)
    In:  Z. Geophys., Reykjavík, Icelandic Meteorological Office, Ministry for the Environment University of Iceland, vol. 43, no. 5, pp. 473-496, pp. TC1011, (ISSN 0016-8548, ISBN 3-510-50045-8)
    Details
    Publication Date: 1977
    Keywords: Subduction zone ; Seismology ; USSR ; Plate tectonics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 6
    facet.materialart.
    Unknown
    On the telemetered array system for microearthquake observation at Abuyama Seismological Observatory (1977)
    In:  J. Seism. Soc. Japan, Basel, Elsevier Science Publishers, vol. 30, no. 1-2, pp. 91-106, pp. B03304, (ISSN: 1340-4202)
    Details
    Publication Date: 1977
    Keywords: Seismology ; Seismic arrays ; Detectors ; sta
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 7
    facet.materialart.
    Unknown
    Study of the attenuation and azimuthal dependence of seismic wave propagation in the southeastern United States (1977)
    In:  Bull. Seism. Soc. Am., Berlin, Schweizerbart'sche Verlagsbuchhandlung, vol. 67, no. 7, pp. 1503-1513, pp. L14306, (ISSN 0016-8548, ISBN 3-510-50045-8)
    Details
    Publication Date: 1977
    Keywords: Seismology ; Waves ; Attenuation ; Anisotropy ; BSSA
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 8
    facet.materialart.
    Unknown
    A fast epicenter location program (1977)
    In:  Bull. Seism. Soc. Am., Kunming, China, 4, vol. 67, no. 2, pp. 425-431, pp. L10314, (ISSN: 1340-4202)
    Details
    Publication Date: 1977
    Keywords: Seismology ; Location ; BSSA
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 9
    facet.materialart.
    Unknown
    Importance of physical dispersion in surface wave and free oscillation problems: Review (1977)
    In:  Rev. Geophys. Space Phys., Tokyo, Tokyo University, vol. 15, no. 9, pp. 105-112, pp. 2265, (ISSN 0016-8548, ISBN 3-510-50045-8)
    Details
    Publication Date: 1977
    Keywords: Review article ; Surface waves ; Dispersion ; (The Earth's free) oscillations ; Seismology ; RGSP
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 10
    facet.materialart.
    Unknown
    Energy release in great earthquakes (1977)
    In:  J. Geophys. Res., Tokyo, Tokyo University, vol. 82, no. 9, pp. 2981-2987, pp. 2265, (ISSN 0016-8548, ISBN 3-510-50045-8)
    Details
    Publication Date: 1977
    Keywords: Seismology ; Source ; Source parameters ; Magnitude ; seismic Moment ; Energy (of earthquakes) ; JGR
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 11
    facet.materialart.
    Unknown
    Earth flattening approximation for body waves derived from geometric ray theory - improvements, corrections and range of applicability (1977)
    In:  J. Geophys., Warszawa, American Geophysical Union, vol. 42, no. 1+2, pp. 429-436, pp. L08304, (ISSN: 1340-4202)
    Details
    Publication Date: 1977
    Keywords: Theoret. geophys. ; Earth model, also for more shallow analyses ! ; Seismology ; Muller
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 12
    facet.materialart.
    Unknown
    The structure of the outer core from SKS amplitudes and travel times (1977)
    In:  Bull. Seism. Soc. Am., Würzburg, Physica-Verlag, vol. 67, no. 1, pp. 1541-1554, pp. L24313, (ISSN: 1340-4202)
    Details
    Publication Date: 1977
    Keywords: Seismology ; Travel time ; Amplitude ; earth Core ; Mueller ; Muller ; BSSA
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 13
    facet.materialart.
    Unknown
    High-frequency radiation from crack (stress drop) models of earthquake faulting (1977)
    In:  Geophys. J. R. astr. Soc., San Francisco, Pergamon, vol. 51, no. 3-4, pp. 625-651, pp. B05315, (ISSN: 1340-4202)
    Details
    Publication Date: 1977
    Keywords: Radiation pattern ; High frequency ... ; Source ; Seismology ; cracks and fractures (.NE. fracturing) ; Modelling ; GJRaS ; nokms
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 14
    facet.materialart.
    Unknown
    Source mechanism of volcanic tremor: Fluid-driven crack models and their application to the 1963 Kilauea eruption (1977)
    In:  J. Volcanol. Geotherm. Res., Tokyo, Inst. f. Theoret. Geodäsie, vol. 2, no. 3, pp. 259-287
    Details
    Publication Date: 1977
    Keywords: Source ; Seismology ; Volcanology ; Fluids ; cracks and fractures (.NE. fracturing) ; Hawaii ; Modelling ; Rock mechanics ; JVGR
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 15
    facet.materialart.
    Unknown
    Seismic sources with observable glut moments of spatial degree two (1977)
    In:  Geophys. J. R. astr. Soc., Washington D.C., Bundesanstalt für Geowissenschaften und Rohstoffe, vol. 51, no. 6, pp. 27-45, pp. L08305
    Details
    Publication Date: 1977
    Keywords: Moment tensor ; Fault plane solution, focal mechanism ; Seismology ; GJRaS
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 16
    facet.materialart.
    Unknown
    A numerical study of two-dimensional spontaneous rupture propagation (1977)
    In:  Geophys. J. R. astr. Soc., Warszawa, Army Corps of Engineers, Woodward-Clyde Consultants, vol. 50, no. 3, pp. 643-668, pp. 1013, (ISBN: 0-12-018847-3)
    Details
    Publication Date: 1977
    Keywords: Two-dimensional ; Fracture ; Modelling ; Source ; Seismology ; GJRaS ; nokms
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 17
    facet.materialart.
    Unknown
    The relationship between anelastic attenuation and regional amplitude anomalies of shortperiod P-waves in North America (1977)
    In:  Bull. Seism. Soc. Am., London, 416 pp., Geological Society, vol. 67, no. 5621, pp. 1303-1317, pp. L18607, (ISBN 1-86239-117-3)
    Details
    Publication Date: 1977
    Keywords: Seismology ; P-waves ; Attenuation ; Inelastic ; Absorption ; High frequency ... ; BSSA
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 18
    facet.materialart.
    Unknown
    Large-scale heterogeneities in the lower mantle (1977)
    In:  J. Geophys. Res., Luxembourg, U.S. Geological Survey, vol. 82, no. 3-4, pp. 239-255, pp. B05309, (ISBN 0-471-26610-8)
    Details
    Publication Date: 1977
    Keywords: Inhomogeneity ; Seismology ; JGR ; Dziewonski
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 19
    facet.materialart.
    Unknown
    Matrix and Stokes vector representations of detectors for polarized waveforms: Theory, with some applications to teleseismic waves (1977)
    In:  Geophys. J. R. astr. Soc., Basel, Inst. f. Geophys., Ruhr-Univ. Bochum, vol. 51, no. 3, pp. 583-603, pp. 1009, (ISSN: 1340-4202)
    Details
    Publication Date: 1977
    Description: zit. bei Park et al. (1987)
    Keywords: Seismology ; Polarization ; Detectors ; Data analysis / ~ processing ; GJRaS
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 20
    facet.materialart.
    Unknown
    Eine seismotektonische Bearbeitung des Erdbebens von Messina im Jahre 1908 (1977)
    Bundesanstalt für Geowissenschaften und Rohstoffe
    In:  Geologisches Jahrbuch, Hannover, Bundesanstalt für Geowissenschaften und Rohstoffe, vol. E11, no. 1, pp. 267-286, pp. 1175, (ISSN: 1340-4202)
    Details
    Publication Date: 1977
    Keywords: Seismology ; Tectonics ; Earthquake
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 21
    facet.materialart.
    Unknown
    Seismische Oberflächenwellen (1977)
    In:  J. Geophys., Luxembourg, Conseil de l'Europe, vol. 42, no. 1, pp. 283-328, pp. B09316, (ISSN: 1340-4202)
    Details
    Publication Date: 1977
    Keywords: Seismology ; PIC ; gab ; Surface waves ; Review article ; Mueller ; Muller
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 22
    facet.materialart.
    Unknown
    Real-time detection and location of local seismic events in Central California (1977)
    In:  Bull. Seism. Soc. Am., Berlin, Pergamon, vol. 67, no. 5, pp. 433-452, pp. B04306, (ISSN: 1340-4202)
    Details
    Publication Date: 1977
    Keywords: Seismology ; Detectors ; Location ; BSSA
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 23
    facet.materialart.
    Unknown
    Monitoring Underground Nuclear Explosions (1977)
    Elsevier
    In:  Amsterdam, 440 pp., Elsevier, vol. 231, no. 3, pp. 2-203, (ISBN 0-470-02298-1)
    Details
    Publication Date: 1977
    Keywords: Textbook of geophysics ; Nuclear explosion ; Seismology
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 24
    facet.materialart.
    Unknown
    Seismic source location in the Ruhr district (1977)
    Trans Tech Publ.
    In:  Professional Paper, Proc. 1. Conf. acoustic emission/microseism. activity in geol. struc. and materials, Clausthal, Trans Tech Publ., vol. 51, no. 16, pp. 235-242, (ISBN 1-86239-165-3, vi + 330 pp.)
    Details
    Publication Date: 1977
    Keywords: BUG ; Location ; Seismology ; Acoustic emission
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 25
    facet.materialart.
    Unknown
    Determination of the three-dimensional seismic structure of the lithosphere (1977)
    In:  J. Geophys. Res., Tokyo, Inst. f. Theoret. Geodäsie, vol. 82, no. 3, pp. 277-296
    Details
    Publication Date: 1977
    Keywords: Seismology ; Inversion ; JGR
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 26
    facet.materialart.
    Unknown
    Quantitative prediction of strong motion for a potential earthquake fault (1977)
    In:  Annali di Geofisica, Tokyo, Inst. f. Theoret. Geodäsie, vol. XXX, no. 1-2, pp. 341-368
    Details
    Publication Date: 1977
    Keywords: Modelling ; Strong motions ; Fault zone ; Seismology ; nokms
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 27
    facet.materialart.
    Unknown
    Interpreting the seismic glut moments of total degree two or less (1977)
    In:  Geophys. J. R. astr. Soc., Washington D.C., Bundesanstalt für Geowissenschaften und Rohstoffe, vol. 51, no. 6, pp. 1-25, pp. L08305
    Details
    Publication Date: 1977
    Keywords: Moment tensor ; Fault plane solution, focal mechanism ; Seismology ; GJRaS
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 28
    facet.materialart.
    Unknown
    Theoretical seismograms of core phases calculated by frequency-dependent full wave theory and their interpretation (1977)
    In:  Geophys. J. R. astr. Soc., Taipei, Elsevier, vol. 51, no. 1, pp. 275-312, pp. TC1002, (ISBN: 0-12-018847-3)
    Details
    Publication Date: 1977
    Keywords: Seismology ; Waves ; caustics ; Synthetic seismograms ; GJRaS
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 29
    facet.materialart.
    Unknown
    An interactive epicenter location procedure for the Resmac seismic array: I (1977)
    In:  Bull. Seism. Soc. Am., Berlin, Inst. Electrical & Electronics Engineers, vol. 67, no. 6, pp. 1577-1586, pp. B04307, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 1977
    Keywords: Location ; Seismic arrays ; Seismology ; BSSA
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 30
    facet.materialart.
    Unknown
    Magnitude of great shallow earthquakes from 1904 to 1952 (1977)
    In:  Bull. Seism. Soc. Am., Regensburg, Inst. Electrical & Electronics Engineers, vol. 67, no. 3, pp. 587-598, pp. TC5001, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 1977
    Keywords: Magnitude ; Earthquake catalog ; Seismology ; BSSA
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 31
    facet.materialart.
    Unknown
    Local magnitudes, seismic moments, and coda durations for earthquakes near Oroville, California (1977)
    In:  Bull. Seism. Soc. Am., Washington D.C., Bundesanstalt für Geowissenschaften und Rohstoffe, vol. 67, no. 2, pp. 615-629, pp. L09611
    Details
    Publication Date: 1977
    Keywords: seismic Moment ; Seismology ; Magnitude ; Moment tensor ; BSSA
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 32
    facet.materialart.
    Unknown
    The monochromatic earthquake magnitude (1977)
    In:  Publ. Inst. Geoph. Pol. Acad. Sc., Hoboken, NJ, 633 pp. + CD-ROM, Pergamon, vol. A-5(166), no. 19, pp. 145-154, pp. B05309, (ISBN 0-471-26610-8)
    Details
    Publication Date: 1977
    Keywords: Frequency ; Seismology ; Spectrum ; Magnitude
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 33
    facet.materialart.
    Unknown
    Kinetic shear resistance, fluid pressures and radiation efficiency during seismic faulting (1977)
    In:  Pageoph, Dordrecht, D. Reidel, vol. 115, no. 5, pp. 387-400, pp. TC5003, (ISSN: 1340-4202)
    Details
    Publication Date: 1977
    Keywords: Friction ; Fluids ; Seismology ; Fracture
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 34
    facet.materialart.
    Unknown
    A study of northeastern North American spectral moments, magnitudes, and intensities (1977)
    In:  Bull. Seism. Soc. Am., Leyden, Noordhoff International Publishing, vol. 67, no. 3, pp. 599-614, pp. B04306, (ISSN: 1340-4202)
    Details
    Publication Date: 1977
    Keywords: Seismology ; seismic Moment ; Spectrum ; Magnitude ; Intensity ; Source parameters ; BSSA
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 35
    facet.materialart.
    Unknown
    Macroseismic study and the implications of structural damage of two recent major earthquakes in the Jordan rift (1977)
    In:  Bull. Seismo. Soc. Amer., Veldhoven, Kluwer, vol. 67, no. 1-2, pp. 1607-1613, pp. B05302, (ISSN: 1340-4202)
    Details
    Publication Date: 1977
    Keywords: Intensity ; Seismology ; Fault zone ; BSSA
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 36
    facet.materialart.
    Unknown
    Seismotektonische Karte der Schweiz, 1:500000, Erläuterungen (1977)
    Inst. für Geophys., ETH Zürich
    In:  Berlin, 254 pp., Inst. für Geophys., ETH Zürich, vol. 15, no. Publ. No. 12, pp. 585, (ISBN 1-85233-708-7)
    Details
    Publication Date: 1977
    Keywords: Seismology ; Seismicity ; Tectonics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 37
    facet.materialart.
    Unknown
    A three-component single-station maximum-likelihood surface wave processor (1977)
    Teledyne Geotech
    In:  Seismic Data Analysis Center report, Alexandria, Virginia, Teledyne Geotech, vol. 10, no. TR-77-14, pp. 484-486, (ISBN 3-933346-037)
    Details
    Publication Date: 1977
    Description: LS-Fit eines Polarisations-Modells im Frequenzbereich, Anwendung zur Abschätzung von Parametern wie Azimut für P-Wellen im kurzperiodischen Band und Rayleigh-Wellen im langperiodischen Band.
    Keywords: Seismology ; Maximum likelihood ; Polarization
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 38
    facet.materialart.
    Unknown
    The upper mantle under western Europe inferred from the dispersion of Rayleigh modes (1977)
    In:  J. Geophys., Tokyo, Dt. Geophys. Ges., vol. 43, no. 1-4, pp. 265-285, pp. 2389, (ISSN: 1340-4202)
    Details
    Publication Date: 1977
    Keywords: Seismology ; Surface waves ; Rayleigh waves ; Dispersion
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 39
    facet.materialart.
    Unknown
    International Symposium on the Analysis of Seismicity and Seismic Hazard and Seismic Risk, 17. - 22. Oct. 1977/1978 (1977)
    Czechoslovak Academy of Sciences
    In:  Proceedings, Prag, Czechoslovak Academy of Sciences, vol. 10, no. WS-693 7-83, pp. 235-239, (ISBN 3-933346-037)
    Details
    Publication Date: 1977
    Keywords: Seismology ; Seismicity ; Earthquake precursor: prediction research ; Earthquake risk ; Earthquake hazard ; Proceedings of a conference
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 40
    facet.materialart.
    Unknown
    Fault plane solutions using relative amplitudes of P and pP (1977)
    In:  Geophys. J. R. astr. Soc., Basle, Wiley, vol. 50, no. 5441, pp. 381-394, pp. 1264, (ISSN: 1340-4202)
    Details
    Publication Date: 1977
    Keywords: Source ; Seismology ; Fault plane solution, focal mechanism ; GJRaS
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 41
    facet.materialart.
    Unknown
    Apparent stress and stress drop for intraplate earthquakes and tectonic stress in the plates (1977)
    In:  Pageoph, Luxembourg, National Academy of Sciences of the USA, vol. 115, no. 6, pp. 317-332, pp. B05311, (ISSN: 1340-4202)
    Details
    Publication Date: 1977
    Keywords: Seismology ; Stress ; Stress drop ; Tectonics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 42
    facet.materialart.
    Unknown
    Spectral changes of fore- and aftershocks of the Haicheng earthquake (1977)
    In:  Acta Geophysica Sinica, Kunming, China, 3-4, vol. 20, no. 1-2, pp. 125-130, pp. B05301, (ISSN: 1340-4202)
    Details
    Publication Date: 1977
    Keywords: Seismology ; Fore-shocks ; Aftershocks ; Earthquake ; China
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 43
    facet.materialart.
    Unknown
    Physics of the Earth (1977)
    Wiley
    In:  New York, Wiley, vol. 25, no. Publ. No. 12, pp. 95-104, (ISBN: 0-08-043930-6)
    Details
    Publication Date: 1977
    Keywords: Textbook of geophysics ; Seismology ; Gravimetry, Gravitation ; TIDES ; Geomagnetics ; Geothermics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 44
    facet.materialart.
    Unknown
    Geometry of Benioff zones: Lateral segmentation and downwards bending of the subducted lithosphere (1977)
    AGU
    In:  Bull., Polar Proj. OP-O3A4, Island Arcs, Deep Sea Trenches and Back Arc Basins, Englewood Cliffs, AGU, vol. 1, no. XVI:, pp. 99-114, (ISBN: 3-540-23712-7)
    Details
    Publication Date: 1977
    Keywords: Crustal deformation (cf. Earthquake precursor: deformation or strain) ; Seismicity ; Subduction zone ; Seismology ; Inhomogeneity
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 45
    facet.materialart.
    Unknown
    Earthquake detectability estimates for 478 globally distributed seismograph stations (1977)
    In:  Phys. Earth Plan. Int., Luxembourg, National Academy of Sciences of the USA, vol. 15, no. 1, pp. P24-P32, pp. B05311, (ISSN: 1340-4202)
    Details
    Publication Date: 1977
    Keywords: Nuclear explosion ; Seismology ; Detectors ; Seismic networks ; PEPI
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 46
    facet.materialart.
    Unknown
    Ray Methods in Seismology (1977)
    Charles Univ. Press
    In:  Prague, 214 pp., Charles Univ. Press, vol. 42, no. 3, pp. 275-291, (0-596-00648-9, 3rd edition 2005. XXII, 509 pp.)
    Details
    Publication Date: 1977
    Keywords: Seismology ; Textbook of geophysics ; Seismics (controlled source seismology) ; Ray seismics ; Ray tracing ; Cerveny ; Psencik ; Synthetic seismograms
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 47
    facet.materialart.
    Unknown
    Direct inversion of transmission synthetic seismograms (1977)
    In:  Preprint, Madrid, European Association of Exploration Geophysicists, vol. C 560, 183 pp., no. 8, pp. 129-132, (ISBN 3-933346-037)
    Details
    Publication Date: 1977
    Keywords: Inversion ; Synthetic seismograms ; Seismology ; Seismics (controlled source seismology)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 48
    facet.materialart.
    Unknown
    Die Anelastizität im europäischen Raum (1977)
    Inst. f. Geophys., Univ.
    In:  Diplom-Arbeit, Hamburg, Inst. f. Geophys., Univ., vol. C 560, 183 pp., no. 6, pp. 1975-1982, (ISBN 3-933346-037)
    Details
    Publication Date: 1977
    Keywords: Inelastic ; Attenuation ; Seismology ; Seismics (controlled source seismology) ; Elasticity
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 49
    facet.materialart.
    Unknown
    A model for earthquake swarms (1977)
    In:  J. Geophys. Res., Zagreb, Conseil de l'Europe, vol. 82, no. 7, pp. 1347-1352, pp. 2118, (ISSN 0343-5164)
    Details
    Publication Date: 1977
    Keywords: Seismicity ; Source ; Seismology ; Modelling ; JGR
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 50
    facet.materialart.
    Unknown
    Phase-matched filters: application to the study of Rayleigh waves (1977)
    In:  Bull. Seism. Soc. Am., Zagreb, Conseil de l'Europe, vol. 67, no. 4, pp. 1259-1275, pp. L02307, (ISSN 0343-5164)
    Details
    Publication Date: 1977
    Keywords: Filter- ; Seismology ; Rayleigh waves ; BSSA
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 51
    facet.materialart.
    Unknown
    Battery life test using reconditioning (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-18
    Description: A discussion is presented on nickel cadmium battery life tests using reconditioning and some comparative tests not using reconditioning. The discussion is aimed at the program application part of the testing. The goals of the program were to get an increased utilization out of the battery system in geosynchronous orbit. An attempt was made to push the depth of discharge operation up around 80 to 85 percent and the intent with the reconditioning program was to extend this type of utilization out towards a 10-year life and attune the voltage regulation.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 259-270
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 52
    facet.materialart.
    Unknown
    Synchronous meteorological and geostationary operational environmental satellites operational experience (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-15
    Description: The mode of operation that is of interest in this discussion is a solar array battery load-sharing mode. The battery is loaded for a fraction of a second and then charged, so the cycle is a 100 millisecond load, followed by a 500 millisecond charge. The purpose of the experiment was to evaluate the charge efficiency and the state of charge. Charge/discharge ratio graphs are presented.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 213-218
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 53
    facet.materialart.
    Unknown
    Analysis of voltage data (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-15
    Description: The use of statistical analysis (regression analysis) to determine the data correlation between eight voltage parameters is discussed. The eight parameters correlated include: temperature, depth of discharge; charge rate; discharge rate; percent recharge; concentration of KOH; amount of KOH; and precharge. Graphs are presented which show: (1) starpoint/centerpoint cycles to failure vs. parameters; (2) cycles to failure vs. temperature; and (3) positive and negative plate thickness and weight vs. cycles. An empirical equation derived from cycles to failure vs. temperature graph for cells cycled at 1C charge, 2C discharge, and 14 percent recharge is also presented.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 155-172
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 54
    facet.materialart.
    Unknown
    Lewis Research Center program (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-14
    Description: As part of the NASA lightweight battery program, the Lewis Research Center has a number of programs that are being reviewed. A brief and general discussion of these programs is presented.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 133-136
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 55
    facet.materialart.
    Unknown
    Air Force nickel-hydrogen test program (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-18
    Description: After using all the instrumentation that is available on a nickel hydrogen battery it will be subjected to the same low earth orbit cycles experienced by the sixty amphere hour nickel cadmium batteries now being flown on some low earth orbit missions. The objective of the test is to demonstrate real differences between the two batteries. In order to simulate flight conditions, the thermal environment and criteria for charge control will vary. The depth of discharge will be increased and testing will continue until some failures or some degradation or spread between cell performances are revealed. Different charge control modes are being considered in order to demonstrate a reasonable life for the nickel hydrogen battery.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 517
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 56
    facet.materialart.
    Unknown
    Air Force nickel-hydrogen experiment (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-18
    Description: An experiment to obtain some flight experience with a nickel-hydrogen battery in low earth orbit is described. The battery was built to be as compatible with the satellite bus as possible because the satellite bus is used for recharge power. The battery is mounted on an experimental pallet on the satellite. It has its own charge control system, a modification of an existing system that is used for nickel-cadmium, which primarily uses temperature compensated voltage as its criteria. Also, on the pallet is a load bank, a resistive load band, which allows switch to various load regimes. There is some other equipment on the satellite such as the nickel-hydrogen battery to power it. Monitors attached to the 21-cell battery are described.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 499-516
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 57
    facet.materialart.
    Unknown
    The NTS-2 nickel-hydrogen battery (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-18
    Description: Features of the first operational nickel hydrogen battery are described as well as experiences encountered during its testing and installation. Battery performance since launching of the NTS-2 satellite is discussed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 489-498
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 58
    facet.materialart.
    Unknown
    Low orbit nickel-hydrogen battery development (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-18
    Description: Test data developed primarily on low earth, but also some accelerated synchronous orbit data are presented for first 40 hour ampere hour boiler plate cells. Graphic data show the following characteristics: charge/discharge voltage; charge/discharge temperature; voltage; pressure; temperature; and discharge voltage.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 481-487
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 59
    facet.materialart.
    Unknown
    Evaluation of positive plates with various loading levels (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-18
    Description: The effects of overcharge and total cycling rate on one electrochemically impregnated and four chemically impregnated nickel electrodes are examined. Topics discussed include porosity distribution, electrode corrosion, electrolyte absorption and positive electrode involvement in the decrease in the amount of electrolyte in the separator. The electrochemically impregnated electrode is shown to be superior to all types of conventionally impregnated electrodes regardless of the loading level.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center. The 1977 Goddard Space Flight Center Battery Workshop; p 361-376
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 60
    facet.materialart.
    Unknown
    Nylon separators (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-18
    Description: A nylon separator was placed in a flooded condition in K0H solution and heated at various high temperatures ranging from 60 C to 110 C. The weight decrease was measured and the molecular weight and decomposition product were analyzed to determine: (1) the effect of K0H concentration on the hydrolysis rate; (2) the effect of K0H concentration on nylon degradation; (3) the activation energy at different K0H concentrations; and (4) the effect of oxygen on nylon degradation. The nylon hydrolysis rate is shown to increase as K0H concentration is decreased 34%, giving a maximum rate at about 16%. Separator hydrolysis is confirmed by molecular weight decrease in age of the batteries, and the reaction of nylon with molecular oxygen is probably negligible, compared to hydrolysis. The extrapolated rate value from the high temperature experiment correlates well with experimental values at 35 degrees.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 389-398
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 61
    facet.materialart.
    Unknown
    Determination of overcharge protection (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-18
    Description: Nylon separator degradation was examined as a function of temperature. Electrochemically active uncharged excess negative (overcharge protection)was measured by charging a cell venting it until it became fully charged, and continuing to overcharge the vent gas. The gas was analyzed as a function of time. The amount of hydrogen evolved was examined, and the cell voltage was observed as the oxygen and/or hydrogen evolved from the cell.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 345-354
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 62
    facet.materialart.
    Unknown
    The standard 20 AH battery (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-18
    Description: The modular power system, which is the first intended use for the NASA standard battery, is basically a four foot by four foot by eighteen inch box which can handle a complement of three 20 ampere hour batteries or later on the intended use is for three 50 ampere hour batteries to be the full complement. The system is designed to be used as a plug on component on a multi mission modular spacecraft. It has as a design point a basically 1250 watt orbital average load. The way it breaks up in a near earth orbit it would be somewhere around 1,000 watts for everything except 10 minutes, and during any 10 minute period it may go up to a peak of 3,000 watt load. Features of the battery reviewed include criteria to store electrical energy, the battery package, the covers and cases, and electrolytes. The capacities expected are 90 percent, the average cell capacity for 24 C, 90 percent of the actual battery capacity of 19 C, and 85 percent of the actual 25 degree battery capacity at zero discharge voltage for 50 percent DOD new battery is in the vicinity expected or predicted of 26.4 volts.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 437-450
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 63
    facet.materialart.
    Unknown
    ITOS power system design (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-13
    Description: A brief description of the ITOS power systems is presented. The descriptions are from viewgraphs shown to the participants of the Workshop. A block diagram of ITOS power supply subsystem is presented along with graphs representing: ITOS voltage limit versus temperature; and battery charge-discharge current profiles over an orbit period.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: The 1977 Goddard Space Flight Center Battery Workshop; p 7-13
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 64
    facet.materialart.
    Unknown
    Storage effects on cells (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-15
    Description: The results of an experiment to test storage effects on electric cells of a battery are presented and discussed. The type of cells were the 20 amp-hour OAO type. The various modes that were tested were the integration type mode, the trickle charge, the discharge shorted and the discharged OCV (open current voltage). Every six months the cells were reconditioned and approximately two weeks of tests were performed. The tests included three capacity checks, two zero-degree overcharge tests and an internal short test (the cells are shunted for 16 hours, the shunt removed and allowed to stand on local circuit recovery for 24 hours). The integration pack was discontinued after three years and the trickle charge shorted packs after five years.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 223-242
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 65
    facet.materialart.
    Unknown
    Charge and discharge profile (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-15
    Description: Some possible parameters which could be used to predict failures within packs of electrochemical cells based on measurements that are taken while the cells are cycling are discussed. Discharge and charge curves are presented and fitted to measure the efficiency of the cells in terms of voltage vs. time.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 181-195
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 66
    facet.materialart.
    Unknown
    Statistical analysis (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-15
    Description: A discussion is presented on the use of statistical analysis to develop a technique that will reliably predict the life of a battery.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 141-153
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 67
    facet.materialart.
    Unknown
    Prediction technique (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-15
    Description: Prediction techniques are discussed for the cycle life of nickel cadmium space cells. Equations and graphs which incorporate such parameters as temperature and recharge are presented.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 173-179
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 68
    facet.materialart.
    Unknown
    Accelerated test program (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-15
    Description: A brief discussion on the accelerated testing of batteries is given. The statistical analysis and the various aspects of the modeling that was done and the results attained from the model are also briefly discussed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: The 1977 Goddard Space Flight Center Battery Workshop; p 137-140
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 69
    facet.materialart.
    Unknown
    Intelsat battery and power system design (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-14
    Description: The orbit data for the Intelsat 4 spacecraft is described. The performance and characteristics of the battery used for this spacecraft are discussed. Graphs are presented which relate battery voltage to various eclipse seasons.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 89-107
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 70
    facet.materialart.
    Unknown
    Orbiting solar observatory battery and power design (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-14
    Description: The OSO-1 represents a recent vintage satellite, or more recent design satellite. A summary of the battery design used on OSO-1 is presented. The temperature effects on voltage and charging-discharging of the battery system are discussed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: The 1977 Goddard Space Flight Center Battery Workshop; p 43-54
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 71
    facet.materialart.
    Unknown
    Atmospheric explorer (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-14
    Description: Atmospheric Explorer (AE) is a 1971 power system design, using the heritage of the ITOS system. The system design and its operation are discussed. Problems of charging and discharging the batteries and the effects of temperature on these operations are discussed. A block diagram of the power supply electronics and some graphs related to voltage and temperature for the AE battery design are presented.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: The 1977 Goddard Space Flight Center Battery Workshop; p 15-23
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 72
    facet.materialart.
    Unknown
    Effort of the Jet Propulsion Laboratory (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-14
    Description: A discussion is presented which gives an overview of the research and technological areas on nickel cadmium batteries at the Jet Propulsion Laboratory. Some of the topics covered include: goals; failure modes and mechanisms; factors of degradation and some possible solutions; energy density; and accomplishments for FY 77 and FY 78.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 119-132
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 73
    facet.materialart.
    Unknown
    Synchronous meteorological and geostationary operational environmental satellites battery and power system design (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-14
    Description: The battery was a three ampere hour nickel cadmium prismatic cell. The battery consists of 20 cells connected in series and there were two batteries per spacecraft. The battery operations (voltage and temperature) that the spacecraft sees during a normal operational day are discussed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: The 1977 Goddard Space Flight Center Battery Workshop; p 69-79
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 74
    facet.materialart.
    Unknown
    Orbiting astronomical observatory battery and power system design (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-14
    Description: The battery design of OAO-C (OAO-3) is given and consists of three-20 ampere hour 22 series connected cells in the battery. There are three batteries per spacecraft. The packaging configuration is described. The charging-discharging operations and the voltage potential of the battery system are discussed. Graphs are presented for the voltage limits (battery voltage versus temperature) and end of dark voltages (battery voltage versus ampere-hours discharged) of the battery system used on OAO-3. Data tables are also presented which give a summary of the battery performance and a comparison of OAO-3 with OAO A-2.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: The 1977 Goddard Space Flight Center Battery Workshop; p 55-79
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 75
    facet.materialart.
    Unknown
    The standard 20 AH cell, a status report (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-18
    Description: Progress of four contractors in producing standard 20 AH nickel-cadmium cells meeting a capacity requirement of 24 + or - 2 AH and an envelope requirement listed in NASA/GSFC specification S-711-17 is reported. Among the requirements were 10 burn in cycles 24 C, 0 C, and 35 C capacity tests, charge efficiency tests and precharge verification tests.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: The 1977 Goddard Space Flight Center Battery Workshop; p 431-435
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 76
    facet.materialart.
    Unknown
    The 100 kW space station (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-18
    Description: Solar array power systems for the space construction base are discussed. Nickel cadmium and nickel hydrogen batteries are equally attractive relative to regenerative fuel cell systems at 5 years life. Further evaluation of energy storage system life (low orbit conditions) is required. Shuttle and solid polymer electrolyte fuel cell technology appears adequate; large units (approximately four times shuttle) are most appropriate and should be studied for a 100 KWe SCB system. A conservative NiH2 battery DOD (18.6%) was elected due to lack of test data and offers considerable improvement potential. Multiorbit load averaging and reserve capacity requirements limit nominal DOD to 30% to 50% maximum, independent of life considerations.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 451-461
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 77
    facet.materialart.
    Unknown
    Epoxy graphite cell cases (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-18
    Description: The graphite epoxy cell case and header developed as a means of weight reduction are discussed. Aspects considered include gas permeability, KOH compatibility, pressure and structural dynamic integrity, fiber orientation, fabrication process, cover-to-case sealing, terminal installation and sealing, reproducibility, exposure to the extractable materials that might influence the electrochemical portion of the cell, and electrical conductivity between the terminals.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 419-427
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 78
    facet.materialart.
    Unknown
    Applications technology satellites battery and power system design (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-14
    Description: A summary of the ATS battery design which is onboard the Applications Technology Satellite (ATS) is provided. The 15 ampere hour nickel cadmium cells were manufactured by Gulton, 19 series connected cells per battery, and there are two batteries in each spacecraft. The operating design life was two years in a synchronous orbit, and a maximum depth of discharge of 50 percent. The design temperature for the batteries in the spacecraft was 0 to 25 C, and the charge control consisted of 1 volt versus temperature on a constant percentage voltage. Also, C/10 current limit, and a commandable trickle charge rate, using C/20 or C/60. The undervoltage was sent across a 9 cell and a 10 cell group, and it was set at one volt average per group on either group.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: The 1977 Goddard Space Flight Center Battery Workshop; p 81-87
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 79
    facet.materialart.
    Unknown
    Nimbus and Landsat (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-14
    Description: The operation and systems design of a nickel cadmium battery system used on the Nimbus and LANDSAT satellites are discussed. Emphasis is placed on the charging-discharging operation of the battery system.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: The 1977 Goddard Space Flight Center Battery Workshop; p 25-42
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 80
    facet.materialart.
    Unknown
    Lithium cell tests at Marshall Space Flight Center (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-18
    Description: Three 18 AH Li-CF batteries with a polypropylene separator and using dimethyl sulfite in Li as F6 for the electrolyte will be placed in each shuttle solid rocket booster for range safety and frustrum location aid. Mechanical vibration, acceleration, random and design vibration, and discharge evaluation tests are discussed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 581-589
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 81
    facet.materialart.
    Unknown
    Lithium cell test results (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-18
    Description: Three lithium SO2 cells, two lithium CF cells, and a vinyl chloride cell, all with crimped seals, and all strictly experimental, were independently discharged on resistors. Three temperatures were used and several different storage temperatures. Discharge rate generally on the nominal discharges were 0.1 amp, 0.5 amp, and 1 amp. Tests results show that the crimp seals are inadequate, especially for the SO2 cells. Normal discharges present no hazards. All cells discharge to zero. The problem of lithium cell explosions, such as occurred during off-limits testing, is discussed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 557-567
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 82
    facet.materialart.
    Unknown
    Lithium cell tests at Langley Research Center (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-18
    Description: The long duration exposure facility mission places temperature requirements of from -30 F to +150 F on the batteries to be used. A hermetically sealed lithium sulfur dioxide cell was tested to predict what the temperature of the battery would be over a given spectrum of temperatures of operation. Near the end of cell discharge, as the voltage started collapsing, a very high heat output rise due to chemical reaction took place. However, if the cells were thermally insulated, they vented, ignited, and burned if an attempt was made to discharge them all the way. The cells do not go into reversal. It was determined that the root of the problem was probably the chemical reaction between the lithium and the acetonitrite solvent. A redesigned cell is discussed as well as some alternates.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 565-580
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 83
    facet.materialart.
    Unknown
    Shuttle safety (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-18
    Description: Experiences with batteries for the Apollo Soyuz Test Project are related and the need for safety criteria for space shuttle orbiter and payload battery handling and design is assessed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 545-556
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 84
    facet.materialart.
    Unknown
    Nickel-hydrogen (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-18
    Description: Because of the disintegration of LaNi5 as the lattice expands on absorbing hydrogen, a nickel hydrogen cell similar to a nickel cadmium cell was designed. The positive electrode is wrapped in a microporous separator and the leads are insulated. A negative conducting grid is inserted and welded to the top of the can into an open ended container which is then turned upside down and filled so that LiNa5 powder occupies all the space not used by the rest of the components. The bottom of the can is then welded on. A fill tube is located either on the bottom or on the top of the can. When welded shut, the cell is put into a pressure bomb and the lanthanum nickel is activated at about 1,000 pounds of hydrogen. Electrolytes are added to the cell as well as whatever amount of hydrogen precharge desired, and the cell is sealed. Advantages and disadvantages of the cell are discussed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 533-543
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 85
    facet.materialart.
    Unknown
    Self discharge of nickel-hydrogen cells (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-18
    Description: Values for the capacity loss with time, naturally on open circuit stand, and information regarding the minimum amount of circuit charge needed to keep the cell charged can be determined from the self-discharge behavior of nickel hydrogen cells. Furthermore, the rate of reaction between hydrogen and a charged nickel electrode is also open for nickel cadmium batteries. In a nickel hydrogen cell, the hydrogen is stored as pressurized gas and the cell stack with the charge that is oxidized nickel-hydroxide electrode is in direct contact with the hydrogen. Therefore, the rate of reaction can be measured easily and precisely by monitoring the charge, the change in hydrogen pressure with time. Measures made on twelve 15 ampere hour nickel hydrogen cells of different stack configurations built for COMSAT are discussed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 525-531
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 86
    facet.materialart.
    Unknown
    Ceramic/metal seals (1977)
    In:  CASI
    Details
    Publication Date: 2006-06-18
    Description: Design criteria are discussed for a hermetic seal capable of withstanding the 450 C operating temperature of a lithium-metal sulfide battery system. A mechanical seal consisting of two high strength alloy metal sleeves welded or brazed to a conductor assembly and pressed onto a ceramic is described. The conductor center passes through the ceramic but is not sealed to it. The seal is effected on the outside of the taper where the tubular part is pressed down over and makes contact.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Goddard Space Flight Center The 1977 Goddard Space Flight Center Battery Workshop; p 355-360
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 87
    facet.materialart.
    Unknown
    Project STOP (Spectral Thermal Optimization Program) (1977)
    In:  CASI
    Details
    Publication Date: 2006-05-22
    Description: The spectral thermal optimization of solar cell configurations for various solar panel applications is considered. The method of optimization depends upon varying the solar cell configuration's optical characteristics to minimize panel temperatures, maximize power output and decrease the power delta from beginning of life to end of life. Four areas of primary investigation are: (1) testing and evaluation of ultraviolet resistant coverslide adhesives, primarily FEP as an adhesive; (2) examination of solar cell absolute spectral response and corresponding cell manufacturing processes that affect it; (3) experimental work with solar cell manufacturing processes that vary cell reflectance (solar absorptance); and (4) experimental and theoretical studies with various coverslide filter designs, mainly a red rejection filter. The Hughes' solar array prediction program has been modified to aid in evaluating the effect of each of the above four areas on the output of a solar panel in orbit.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Lewis Res. Center Solar Cell High Efficiency and Radiation Damage; p 127-132
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 88
    facet.materialart.
    Unknown
    Transmutation doping of silicon solar cells (1977)
    In:  CASI
    Details
    Publication Date: 2006-05-22
    Description: Normal isotopic silicon contains 3.05% of Si-30 which transmutes to P-31 after thermal neutron absorption, with a half-life of 2.6 hours. This reaction is used to introduce extremely uniform concentrations of phosphorus into silicon, thus eliminating the areal and spatial inhomogeneities characteristic of chemical doping. Annealing of the lattice damage in the irradiated silicon does not alter the uniformity of dopant distribution. Transmutation doping also makes it possible to introduce phosphorus into polycrystalline silicon without segregation of the dopant at the grain boundaries. The use of neutron transmutation doped (NTD) silicon in solar cell research and development is discussed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Lewis Res. Center Solar Cell High Efficiency and Radiation Damage; p 109-116
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 89
    facet.materialart.
    Unknown
    The sawtooth cover slide (1977)
    In:  CASI
    Details
    Publication Date: 2006-05-22
    Description: A novel cover slide is reported which increases solar cell output by reducing the reflection of light from the cover slide surface and by redirecting incident light so that none falls on the collection grids of the cell. The new cover slide is fabricated with a sawtooth surface having a periodicity equal to that of the solar cell grids. This configuration refracts the light so that it is directed onto the semiconductor surface between the grid lines. Conventional grid patterns obstruct 7-10 percent of the light incident on the cell; at least half of this loss has been recovered by using the sawtooth cover slide. In addition, surface reflection from the conventional coated cover slide is suppressed by presenting a second surface to any light reflected at the first plane of contact. This double reflection results in a greater reduction of the reflection loss from the cover slide than does an antireflection coating on a flat surface.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Lewis Res. Center Solar Cell High Efficiency and Radiation Damage; p 95-98
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 90
    facet.materialart.
    Unknown
    Impurity concentrations and surface charge densities on the heavily doped face of a silicon solar cell (1977)
    In:  CASI
    Details
    Publication Date: 2006-05-22
    Description: Increased solar cell efficiencies are attained by reduction of surface recombination and variation of impurity concentration profiles at the n(+) surface of silicon solar cells. Diagnostic techniques are employed to evaluate the effects of specific materials preparation methodologies on surface and near surface concentrations. It is demonstrated that the MOS C-V method, when combined with a bulk measurement technique, yields more complete concentration data than are obtainable by either method alone. Specifically, new solar cell MOS C-V measurements are combined with bulk concentrations obtained by a successive layer removal technique utilizing measurements of sheet resistivity and Hall coefficient.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Lewis Res. Center Solar Cell High Efficiency and Radiation Damage; p 69-79
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 91
    facet.materialart.
    Unknown
    Surface recombination velocity and diffusion length of minority carriers in heavily doped silicon layers (1977)
    In:  CASI
    Details
    Publication Date: 2006-05-22
    Description: Quantitative analysis of the electron beam-induced current and the dependence of the effective diffusion length of the minority carriers on the penetration depth of the electron beam were employed for the analysis of the carrier recombination characteristics in heavily doped silicon layers. The analysis is based on the concept of the effective excitation strength of the carriers which takes into consideration all possible recombination sources. Two dimensional mapping of the surface recombination velocity of P-diffused Si layers will be presented together with a three dimensional mapping of minority carrier lifetime in ion implanted Si. Layers heavily doped with As exhibit improved recombination characteristics as compared to those of the layers doped with P.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Lewis Res. Center Solar Cell High Efficiency and Radiation Damage; p 59-68
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 92
    facet.materialart.
    Unknown
    A Review of Air Force space photovoltaic development efforts (1977)
    In:  CASI
    Details
    Publication Date: 2006-05-22
    Description: Silicon and gallium arsenide solar cell developments are reviewed. The rationale for these efforts are cited showing the reasons for placing emphasis on survivability as well as high conversion efficiency.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Lewis Res. Center Solar Cell High Efficiency and Radiation Damage; p 25-31
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 93
    facet.materialart.
    Unknown
    Impurity gradients and high efficiency solar cells (1977)
    In:  CASI
    Details
    Publication Date: 2006-05-22
    Description: One potential means of improving the efficiency of solar cells especially after space irradiation is to incorporate built-in fields into the device through the use of impurity doping gradients. A detailed numerical calculation of solar cell performance has been used to study various types of doping gradients. In general, the predicted improvements in performance have been less than previously reported due to various device effects such as, high injection and the dependence of lifetime on doping density.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Lewis Res. Center Solar Cell High Efficiency and Radiation Damage; p 33-50
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 94
    facet.materialart.
    Unknown
    Summary of the NASA space photovoltaic research and technology program (1977)
    In:  CASI
    Details
    Publication Date: 2006-05-22
    Description: Low cost solar cells and arrays with high end-of-life efficiency are evaluated through two approaches: one, to obtain increased device efficiency at no increase in cost and two, to reduce the manufacturing costs of space solar cells and arrays. Technology efforts encompass high efficiency epitaxial cells, high efficiency wraparound contact solar cells, economical diffusion sources, automated cell fabrication and development of easily applied, durable cover glasses. The examination of ion-implanted profile tailored junctions and additional development of screen printed contact technology to cell development are also considered.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Solar Cell High Efficiency and Radiation Damage; p 3-6
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 95
    facet.materialart.
    Unknown
    The Goddard Space Flight Center high efficiency cell development and evaluation program (1977)
    In:  CASI
    Details
    Publication Date: 2006-05-22
    Description: Laboratory tests and flight experiments showed that solar cells can be produced in quantity, that they are suitable for space flight applications, and that the power produced ranged from 20 to 35% more than that of conventional cells. In a benign flight environment, the cells degraded at approximately the same rate as conventional cells. In synchronous orbit, the rate exceeded that of conventional cells, but high efficiency cells still showed significant power advantage after two years. Irradiation test results showed the voltage-temperature coefficients to be comparable to conventional cells. However, current-temperature coefficients were not only higher initially, but also increased significantly with irradiation. Although thin cells with good performance characteristics were made, significant problem areas pertinent to production were disclosed, particularly for cells with thickness of 0.100 mm or less. The overall program led to the use of advanced high efficiency cells on the International Sun-Earth Explorer solar panels.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Solar Cell High Efficiency and Radiation Damage; p 7-23
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 96
    facet.materialart.
    Unknown
    Ultraviolet damage in solar cell assemblies with various UV filters (1977)
    In:  CASI
    Details
    Publication Date: 2006-05-24
    Description: Ultraviolet damage to the new violet and non-reflective type solar cell assemblies, was studied, and potential advantages of using coverslides with no filters or filters with cut-off wavelengths below 0.35 micron were determined. The experiments consisted of three types of tests on fused silica coverslides with 0.35- and 0.30-micron cut-off filters and no cut-off filters, as well as on ceria-doped microsheet coverslides. Ultraviolet irradiation for over 1500 hours at one sun conditions (AMO) was carried out under vacuum of about 1 million torr. Nearly identical results for non-reflective type cells with 0.35-micro cut-off filters or ceria-doped coverslides were obtained. The 0.30-um filtered cell shows greater than average degradation. The unfiltered cell shows an abrupt drop in the first 20 UVSH and very little subsequent degradation.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Lewis Res. Center Solar Cell High Efficiency and Radiation Damage; p 227-229
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 97
    facet.materialart.
    Unknown
    Ionization induced damage in crystalline silicon (1977)
    In:  CASI
    Details
    Publication Date: 2006-05-24
    Description: Close examination of the interaction of the energetic knock-on atoms with the local lattice environment reveals a damage mechanism which does satisfy the experimental data on proton irradiation of silicon. A proton-atom interaction with high energy transfer is considered where the proton path is delineated by a trail of ionization, and the silicon ion path is characterized by much heavier ionization terminating in a dense displacement cluster. At collision, many of the silicon electrons are stripped off, and the resulting energetic ion subsequently loses energy rapidly by Coulomb interaction with bound electrons. The rate of energy loss depends on the charge state and velocity of the knock-on ion. For ion energies in excess of 1 MeV, the intensity of ionization is sufficient to permit lattice atoms, stripped of their binding electrons, to reorient randomly before having an opportunity to recombine with electrons and re-establish the lattice. The path of a knock-on ion thus becomes a thin cylinder of amorphous material within the crystal. Amorphous silicon has a Fermi level closer to mid-band than does single crystal silicon, and a strong field therefore, results around this damaged region. The field produces a large depletion region, representing a very large capture cross section for minority carriers.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Lewis Res. Center Solar Cell High Efficiency and Radiation Damage; p 221-223
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 98
    facet.materialart.
    Unknown
    GaAs solar cell development (1977)
    In:  CASI
    Details
    Publication Date: 2006-05-24
    Description: The motivation for developing GaAs solar cells is based on their superior efficiency when compared to silicon cells, their lower degradation with increasing temperature, and the expectation for better resistance to space radiation damage. The AMO efficiency of GaAs solar cells was calculated. A key consideration in the HRL technology is the production of GaAs cells of large area (greater than 4 sg cm) at a reasonable cost without sacrificing efficiency. An essential requirement for the successful fabrication of such cells is the ability to grow epitaxially a uniform layer of high quality GaAs (buffer layer) on state-of-the-art GaAs substrates, and to grow on this buffer layer the required than layer of (AlGa)As. A modified infinite melt liquid phase epitaxy (LPE) growth technique is detailed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Lewis Res. Center Solar Cell High Efficiency and Radiation Damage; p 149-157
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 99
    facet.materialart.
    Unknown
    Theoretical studies of a new double graded band-gap Al sub x Ga sub 1-x As-Al sub y Ga sub 1-y As (1977)
    In:  CASI
    Details
    Publication Date: 2006-05-24
    Description: A new double graded band-gap (DGBG) Al sub x Ga sub l-x As-Al sub z Ga sub l-z As solar cell has potential for providing high efficiency performance throughout the entire life of a solar cell in a space environment. A preliminary theoretical analysis indicates that short circuit current available from an optimized DGBG cell is slightly larger than that of a previously reported single graded band-gap cell. However, the DGBG cell potentially offers a substantial improvement in radiation resistance of the base region.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Solar Cell High Efficiency and Radiation Damage; p 139-147
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 100
    facet.materialart.
    Unknown
    High efficiency GaAs solar cells (1977)
    In:  CASI
    Details
    Publication Date: 2006-05-24
    Description: The present status of the GaAlAs/GaAs heteroface solar cell program is reported. Studies have been concentrated on GaAlAs/GaAs heteroface solar cells; however, some research has been conducted on thin junction, diffused GaAs solar cells. Emphasis has been on obtaining high efficiency (18% to 20%) GaAs solar cells. Two problems that have limited the efficiency of GaAs solar cells are the high recombination velocity of carriers near the surface and the low minority carrier diffusion length in n-GaAs.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Solar Cell High Efficiency and Radiation Damage; p 133-138
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...