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  • 1
    Keywords: Hochschulschrift
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (128 Seiten = 10 MB) , Graphik
    Edition: 2021
    Language: German
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Zeitschrift für angewandte Mathematik und Physik 25 (1974), S. 258-268 
    ISSN: 1420-9039
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Description / Table of Contents: Summary Two variables are given as functions of three other variables. A procedure to be performed electronically is described by which this system of equations will be solved for two of the independent variables by simultaneous reversion of two power series, and the resulting truncated power series, which have to consist, with a high precision required, of a lot of terms, will be shortened by least squares fit with polynomials. This procedure of solution includes an algorithm for setting up general formulae for the coefficients of the reversed power series. The procedure was applied to solving functional interrelations of five physical quantities of sea water by J. Rohde (1972) [1] where the originally dependent variables are the electric conductivity and the velocity of sound, the independent variables for which the equations were solved are salinity and pressure, and the third independent variable is temperature; additionally, salinity was presented as a function of conductivity, pressure, and temperature.
    Notes: Zusammenfassung Zwei Variable seien als Funktionen von drei anderen gegeben. Es wird ein elektronisch durchzuführendes Verfahren beschrieben, dieses Gleichungssystem nach zweien der unabhängigen Variablen durch simultane Umkehrung zweier Potenzreihen aufzulösen und die resultierenden Potenzreihenabschnitte, die bei einer hohen Genauigkeitsforderung aus sehr vielen Gliedern bestehen müssen, durch beste Polynomapproximation im Mittel zu verkürzen. Dieses Auflösungsverfahren enthält einen Algorithmus zum Gewinnen von allgemeinen Formeln für die Koeffizienten der Umkehrreihen. Das Verfahren wurde von J. Rohde (1972) [1] zur Umrechnung von funktionalen Beziehungen zwischen fünf physikalischen Größen des Seewassers verwandt, wobei die ursprünglich abhängigen Variablen die elektrische Leitfähigkeit und die Schallgeschwindigkeit, die unabhängigen Variablen, nach denen aufgelöst wurde, der Salzgehalt und der Druck und die dritte unabhängige Variable die Temperatur sind; zusätzlich wurde der Salzgehalt als Funktion von Leitfähigkeit, Druck und Temperatur dargestellt.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 38 (1960), S. 919-923 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-2307
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung Mit Hilfe verschiedener Färbemethoden und einer mikrodensometrischen Methode wird nachgewiesen, daß die Intercellularsubstanz von Knorpel und Knochen nach dem Tode einen Dichteverlust erfährt, der auf die Depolymerisation des Polysaccharidanteils in beiden Geweben zurückgeführt wird. Während der ersten 11/2 Std nach dem Tode ist die Abnahme der Dichte am größten und nähert sich dann einem Grenzwert. Für die Beurteilung der Knochenintercellularsubstanz von Präparaten, die am Patienten gewonnen werden, wird daher Sektionsmaterial als Vergleichsobjekt abgelehnt.
    Type of Medium: Electronic Resource
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  • 5
    Publication Date: 2021-02-11
    Type: Thesis , NonPeerReviewed
    Format: text
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  • 6
    Publication Date: 2022-05-09
    Description: A table of the electrical conductivity of sea water at atmospherical pressure as a function of salinity and temperature, compiled from values presented by THOMAS, THOMPSON, UTTERBACK, Cox, and REEBURGH, is approximated by a polynomial. In addition to the dependence of conductivity on pressure stated by BRADSHAW and SCHLEICHER a polynomial is determined which represents conductivity as a function of salinity, temperature and pressure. Furthermore a corresponding polynomial representing the velocity of sound as established by WILSON is used. From these quantities salinity and pressure are calculated approximately as functions of temperature, conductivity and sound speed, as well as salinity as a function of temperature, pressure and conductivity and presented in the form of polynomials, in the aim to obtain the basic quantities from those observed directly with apparatus of the continuous-profiling type. The calculation is formulated for use on an electronic computer. The derived formulae are valid for almost all regions of the oceans and for all depths with a precision meeting the usual rather high requirements provisionally in most cases. The effects of errors in the measurement of the directly measureable quantities, on salinity and on the anomaly of the specific volume are discussed.
    Type: Article , NonPeerReviewed
    Format: text
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