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  • SPACE SCIENCES  (2)
  • Piezoelectric ceramic transducer  (1)
  • SPACECRAFT DESIGN, TESTING AND PERFORMANCE  (1)
  • 1
    Electronic Resource
    Electronic Resource
    A simple, corrosion-resistant flow cell for laser-induced photoacoustic spectroscopic detection of high-performance liquid chromatography effluents (1982)
    Springer
    Chromatographia 15 (1982), S. 645-649 
    Details
    ISSN: 1612-1112
    Keywords: laser-induced photoacoustic spectroscopy ; High-performance liquid chromatography detector ; Flow cell ; Polynuclear aromatic hydrocarbons ; Piezoelectric ceramic transducer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary A simple, corrosion-resistant and non-destructive flow cell optimized for laser induced photoacoustic spectroscopic detection of HPLC effluents is described. The characteristics and analytical figures of merit of the flow cell are presented. Application of the flow cell to the detection of polynuclear aromatic hydrocarbons in HPLC effluent is demonstrated. Limits of detection were on the order of tenths of parts per million. Comparisons with the conventional UV absorbance detector and among various laser powers are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02279492
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    Paper (German National Licenses)
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  • 2
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    Average plasma environment at geosynchronous orbit (1979)
    In:  CASI
    Details
    Publication Date: 2006-01-12
    Description: The average plasma environment at geosynchronous orbit (GSO) is derived from a whole year's worth of plasma data obtained by the UCSD electrostatic electrometer on board ATS 5. The result is primarily intended for use as a general reference for engineers designing a large spacecraft to be flown at GSO. A simple mathematical formula using a 3rd order polynomial is found to be adequate for representing the yearly averaged particle energy spectrum from 70 to 41,000 eV under different geomagnetic conditions. Furthermore, correlation analyses with the geomagnetic planetary index Kp and with the auroral electrojet index AE were carried out in the hope that the ground observations of the geomagnetic field variations can be used to predict the plasma variations in space. Unfortunately, the results indicate that such forecasting is not feasible by use of these two popular geomagnetic parameters alone.
    Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
    Type: NASA. Lewis Res. Center Spacecraft Charging Technol., 1978; p 23-37
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    First-order orbit theory of the rotational discontinuity. (1968)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Propagation and internal equilibrium structure of Alfven wave which conserves magnitude of magnetic field component
    Keywords: SPACE SCIENCES
    Type: ; YAL SOCIETY (
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    On the equilibrium of the magnetopause current layer (1971)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Magnetopause current layer equilibrium based on numerical solution of uniform magnetic field confinement by warm plasma with net parallel velocity
    Keywords: SPACE SCIENCES
    Type: ; UG REVUE(
    Format: text
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    NASA TECHNICAL REPORTS
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