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  • Analytical Chemistry and Spectroscopy  (3)
  • 68 B 05  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Computing 31 (1983), S. 317-346 
    ISSN: 1436-5057
    Keywords: 68 B 05 ; 68 B 10 ; 68 F 05 ; 68 F 25 ; 90-04 ; Software development environments ; software specification ; syntax ; graph grammars
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Description / Table of Contents: Zusammenfassung Der folgende Aufsatz zeigt auf, daß programmierte sequentielle Graph-Grammatiken dazu benutzt werden können, die Veränderung hoher Zwischencodes zu spezifizieren, die im Kontext einer Software-Entwicklungsumgebung auftreten, deren Werkzeuge alle inkrementell und syntaxgesteuert arbeiten. Wir legen in diesem Aufsatz mehr Wert auf die Erläuterung einer systematischen Vorgehensweise, um die Spezifikation zu erhalten, als auf die detaillierte Abhandlung der Spezifikation selbst. Somit kann dieses Papier auch als ein Ansatz zu einem „Spezifikations-Engineering” mit Hilfe von Graph-Grammatiken angesehen werden. Der Ansatz wird maßgeblich beeinflußt von der Syntaxdefinition der zugrundeliegenden formalen Sprache für das Programmieren im Kleinen bzw. für das Modulkonzept etc. einerseits und andererseits von der Vorstellung der Form der Benutzerschnittstelle.
    Notes: Abstract The following paper demonstrates that programmed sequential graph grammars can be used in a systematic proceeding to specify the changes of high level intermediate data structures arising in a programming support environment, in which all tools work in an incremental and syntax-driven mode. In this paper we lay stress upon the way to get the specification rather than on the result of this process. Therefore, we give here some approach to “specification engineering” using graph grammars. This approach is influenced by the syntactical definition of the underlying language for Programming in the Small, the module concept etc. to be supported on one side but also by the idea of the user interface.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1052-9306
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The mass spectra of the dimethylphosphinic, dimethylthiophosphinic and dimethylphosphinous ester derivatives of several monohydroxy steroids are reported. The fragmentations of the derivatized steroids largely depend on the nature of the the phosphorus-containing ester group. Phenolic ester derivatives exhibit the base peak at the molecular ion, whereas the spectra of the secondary phosphinic esters are dominated by very intense protonated phosphinic acid ions [Me2 P(XH)(OH)]+ at m/e 95 (X = O) or at m/e 111 (X = S). The present results also indicate the low ionization potential for the phosphinic ester group. Due to their good gas chromatographic properties, these steroid derivatives appear to be particularly suitable for gas chromatographic mass spectrometric analysis of biochemical materials.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 1 (1978), S. 71-72 
    ISSN: 0935-6304
    Keywords: Gas Chromatography ; Capillary, glass ; Separation of the four 10,12-Hexadecadiene-1-ol isomers ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Complete gas-liquid chromatographic separation of the four 10, 12-hexadecadiene-l-ol isomers using a FFAPcoated glass capillary column is described.These measurements are of importance for the analysis of pheromones from biological sources and for the control of material from stereospecific syntheses.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 10 (1987), S. 41-42 
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Capillary columns ; PCDD's ; PCDF's ; Adsorption phenomena ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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