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  • AERODYNAMICS  (1)
  • Dimethylthiophosphinyl derivatives  (1)
  • 1980-1984  (2)
  • 1975-1979
  • 1960-1964
  • 1950-1954
  • 1
    ISSN: 1612-1112
    Keywords: Aniline ; Dimethylthiophosphinyl derivatives ; Mass fragmentography ; Environmental analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary A method for trace analysis of aniline in water, urine and serum samples is presented. Internal standardisation with d5-aniline, extraction, derivatisation with dimethylthiophosphinic chloride, gas chromatographic separation on a glass capillary column and mass fragmentographic quantitation are essential steps of the analytical procedure. A detection limit of 20 pg/ml in water and 500 pg/ml in urine or serum is achieved.
    Type of Medium: Electronic Resource
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  • 2
    Publication Date: 2019-08-27
    Description: A numerical method for computing the subsonic flow around multi-element airfoil systems was developed, allowing for flow separation at one or more elements. Besides multiple rear separation also sort bubbles on the upper surface and cove bubbles can approximately be taken into account. Also, compressibility effects for pure subsonic flow are approximately accounted for. After presentation the method is applied to several examples and improved in some details. Finally, the present limitations and desirable extensions are discussed.
    Keywords: AERODYNAMICS
    Type: NASA-TM-76930 , NAS 1.15:76930 , DFVLR-FB-81-24
    Format: application/pdf
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