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  • Atomic and molecular collisions and interactions  (1)
  • BIOSCIENCES  (1)
  • 1
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    Extension of charge-state-distribution calculations for ion-solid collisions towards low velocities and many-electron ions (2015)
    American Physical Society (APS)
    Details
    Publication Date: 2015-10-14
    Description: Author(s): E. Lamour, P. D. Fainstein, M. Galassi, C. Prigent, C. A. Ramirez, R. D. Rivarola, J.-P. Rozet, M. Trassinelli, and D. Vernhet Knowledge of the detailed evolution of the whole charge-state distribution of projectile ions colliding with targets is required in several fields of research such as material science and atomic and nuclear physics but also in accelerator physics, and in particular in regard to the several foreseen … [Phys. Rev. A 92, 042703] Published Mon Oct 12, 2015
    Keywords: Atomic and molecular collisions and interactions
    Print ISSN: 1050-2947
    Electronic ISSN: 1094-1622
    Topics: Physics
    Published by American Physical Society (APS)
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    PAPER CURRENT
  • 2
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    Tracer techniques for urine volume determination and urine collection and sampling back-up system (1971)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The feasibility, functionality, and overall accuracy of the use of lithium were investigated as a chemical tracer in urine for providing a means of indirect determination of total urine volume by the atomic absorption spectrophotometry method. Experiments were conducted to investigate the parameters of instrumentation, tracer concentration, mixing times, and methods for incorporating the tracer material in the urine collection bag, and to refine and optimize the urine tracer technique to comply with the Skylab scheme and operational parameters of + or - 2% of volume error and + or - 1% accuracy of amount of tracer added to each container. In addition, a back-up method for urine collection and sampling system was developed and evaluated. This back-up method incorporates the tracer technique for volume determination in event of failure of the primary urine collection and preservation system. One chemical preservative was selected and evaluated as a contingency chemical preservative for the storage of urine in event of failure of the urine cooling system.
    Keywords: BIOSCIENCES
    Type: NASA-CR-115262
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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