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  • Astrophysics  (2)
  • Earthquake  (2)
  • Earthquake precursor: prediction research  (2)
  • Achlorophyllous alga  (1)
  • 1
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    The foreshock activity of the 1971 San Fernando earthquake, California (1978)
    In:  Bull. Seism. Soc. Am., Amsterdam, Schweizerbart'sche Verlagsbuchhandlung, vol. 68, no. 8, pp. 1265-1279, pp. L12S09, (ISSN 0016-8548, ISBN 3-510-50045-8)
    Details
    Publication Date: 1978
    Keywords: Seismology ; Earthquake precursor: prediction research ; Fore-shocks ; Earthquake ; Earthquake precursor: statistical anal. of seismicity ; BSSA
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    Earthquake activity in Antarctica (1971)
    In:  Antarctic Record, Helsinki, Icelandic Meteorological Office, Ministry for the Environment University of Iceland, vol. 42, no. 9, pp. 53-60, pp. 2265, (ISSN 0016-8548, ISBN 3-510-50045-8)
    Details
    Publication Date: 1971
    Keywords: Seismicity ; Earthquake ; Seismic networks
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    BIBLIOGRAPHY SEISMOLOGY
  • 3
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    A possible foreshock of a future large earthquake near Odawara, center Japan (1992)
    In:  Geophys. Res. Lett., Amsterdam, Schweizerbart'sche Verlagsbuchhandlung, vol. 19, no. 8, pp. 1695-1698, pp. L12S09, (ISSN 0016-8548, ISBN 3-510-50045-8)
    Details
    Publication Date: 1992
    Keywords: Seismology ; Earthquake precursor: prediction research ; Fore-shocks ; Earthquake precursor: statistical anal. of seismicity ; GRL
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    BIBLIOGRAPHY SEISMOLOGY
  • 4
    Electronic Resource
    Electronic Resource
    Effects of some factors on protoplast formation of a microalga, Prototheca zopfii (1997)
    Springer
    World journal of microbiology and biotechnology 13 (1997), S. 355-356 
    Details
    ISSN: 1573-0972
    Keywords: Achlorophyllous alga ; enzymatic degradation ; protoplast formation ; Prototheca.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract The effects of experimental factors on protoplast formation of Prototheca zopfii Kru¨ger in 0.85 m NaCl using Macerozyme R-200 were studied based on a fractional factorial experimental design. The rate of protoplast formation was mainly affected by the incubation temperature and the age of algal cells. The optimal condition for the maximum protoplast yield was determined based on a response surface model. These were: mid-logarithmic phase cells and Macerozyme concentration of 4% at a temperature of 35°C.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018555628895
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    Paper (German National Licenses)
    Fulltext
  • 5
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    Ray-Tracing Simulation and In-Orbit Performance of the ASTRO-H Hard X-Ray Telescope (HXT) (2016)
    In:  CASI
    Details
    Publication Date: 2019-07-20
    Description: A ray-trace simulation code for the Hard X-ray Telescope (HXT) on board the Hitomi (ASTRO-H) satellite is beingdeveloped. The half power diameter and effective area simulated based on the code are consistent with groundmeasurements within 10%. The HXT observed the pulsar wind nebula G21.5-0.9 for 105 ksec. We confirmed that theencircled energy function and the half power diameter obtained from the data are consistent with the ground measurements.
    Keywords: Astrophysics
    Type: GSFC-E-DAA-TN64667 , SPIE ASTRONOMICAL TELESCOPES + INSTRUMENTATION; Jun 26, 2016 - Jul 01, 2016; Edinburgh; United Kingdom|Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray; 9905; 990541
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    Discovery of Rapidly Moving Partial X-Ray Absorbers Within Cassiopeiae (2016)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Gamma Cassiopeiae is an enigmatic Be star with unusually strong hard X-ray emission. The Suzaku observatory detected six rapid X-ray spectral hardening events called "softness dips" in a approx.100 ks observation in 2011. All the softness dip events show symmetric softness-ratio variations, and some of them have flat bottoms apparently due to saturation. The softness dip spectra are best described by either approx.40% or approx.70% partial covering absorption to kT approx.12 keV plasma emission by matter with a neutral hydrogen column density of approx.(28) 10(exp 21)/sq cm, while the spectrum outside these dips is almost free of absorption. This result suggests the presence of two distinct X-ray-emitting spots in the gamma Cas system, perhaps on a white dwarf (WD) companion with dipole mass accretion. The partial covering absorbers may be blobs in the Be stellar wind, the Be disk, or rotating around the WD companion. Weak correlations of the softness ratios to the hard X-ray flux suggest the presence of stable plasmas at kT approx 0.9 and 5 keV, which may originate from the Be or WD winds. The formation of a Be star and WD binary system requires mass transfer between two stars; gamma Cas may have experienced such activity in the past.
    Keywords: Astrophysics
    Type: GSFC-E-DAA-TN40102 , Astrophysical Journal (e-ISSN 2041-8213); 832; 2; 140
    Format: text
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    NASA TECHNICAL REPORTS
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