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  • 1
    Electronic Resource
    Electronic Resource
    Slab radiation with initial temperature distribution described by an odd function (1976)
    Springer
    Heat and mass transfer 9 (1976), S. 49-52 
    Details
    ISSN: 1432-1181
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Description / Table of Contents: Zusammenfassung Es werden Funktionen zur Beschreibung der nichtstationären Wärmeleitung in einem Stab mit Wärmeübergang bei ungerader Verteilung der Anfangstemperatur in graphischer Form mitgeteilt. Hiermit lassen sich die wesentlichen Elemente des Vorgangs einfach bestimmen.
    Notes: Abstract Functions describing global characteristics of the temperature field for the slab radiation with initial temperature distribution described by an odd function are given in a graphical form. This form enables rapidly and easily to determine main features of the process.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01465604
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Transformation of lymphocytes in patients with certain bacterial infections (1975)
    Springer
    Medical microbiology and immunology 161 (1975), S. 273-277 
    Details
    ISSN: 1432-1831
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The state of cell-mediated immunity was measured by the morphological method of lymphocyte transformation with and without PHA, in a group of 56 patients with bacterial infections and in a group of healthy controls. The patients were divided into three subgroups according to the aetiology: 1. Patients with Gram-positive infections, 2. Patients with Gramn-egative infections, and 3. mixed infections. The transformation values without PHA were significantly (t-test) higher in the Gram-positive subgroups than in the control group. Transformation in cultures stimulated by PHA was much higher in the subgroup of patients with Gram-positive aetiology; the difference between the values in the Gram-negative and in the Gram-positive subgroups was also significant. A decrease of transformation value below 50% was observed in 6 out of 18 patients with Gram-negative aetiology, whereas in the Gram-positive group it was noted in only 2 out of 21 patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02122715
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Coalescence of single drops at two different interfaces (1977)
    Springer
    Colloid & polymer science 255 (1977), S. 368-373 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Zusammenfassung Es wurden die Koaleszenzzeiten einzelner Tropfen an den Phasengrenzen flüssig-flüssig und flüssig-fest bestimmt. Aus dem Vergleich der gefundenen Werte geht hervor, daß die Koaleszenzzeiten vor allem durch den Charakter der Strömung im Grenzflächenfilm gegeben sind. Die Änderungen der Tropfenform in der Vorkoaleszenzperiode sind sehr gut reproduzier bar.
    Notes: Summary Experimentally determined coalescence times of single drops on liquid/liquid and on liquid/solid horizontal plane interfaces are presented. It is shown, that the coalescence times are largely determined by a flow field in the drained film in the pre-coalescence period. The changes of drop shapes are highly reproducible in this period.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01773534
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Measurement of fermentor aeration capacity by a fast-response oxygen electrode in medium-air dispersions (1978)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 20 (1978), S. 305-308 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260200215
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Volumetric mass transfer coefficient in stirred reactors (1988)
    Weinheim : Wiley-Blackwell
    Chemical Engineering & Technology - CET 11 (1988), S. 249-251 
    Details
    ISSN: 0930-7516
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: It is shown that the volumetric mass transfer coefficients, presented recently by Schmitz et al. [1] for viscous solutions of carboxymethyl cellulose (CMC) in aqueous sodium sulphite, are considerably underestimated as a result of unjustified neglect of the oxygen back pressure during oxygen absorption. Schmitz et. al. [1] found a decrease in the exponent n in the relationship between the oxygen mass transfer coefficient, kla, and the power dissipated per unit volume of the liquid phase, e (kla ∝ en), and ascribed it to viscosity effects. However, no such decrease is observed, provided that the actual oxygen back pressure is taken into account.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ceat.270110133
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Measurement of aeration capacity of fermenters (1989)
    Weinheim : Wiley-Blackwell
    Chemical Engineering & Technology - CET 12 (1989), S. 213-217 
    Details
    ISSN: 0930-7516
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Important aspects of K1a measurement in agitated aerated vessels are briefly characterized from the standpoint of reliability of the measured data. An analysis of the shortcomings of dynamic methods for measuring the K1a is given. A new modification of the dynamic method is proposed, which excludes these inadequacies through a special experimental arrangement. This was verified by comparing the data with those obtained by an independent steady-state method. The new method can serve as a standard of reference, suitable for testing newly developed methods for K1a measurement. The initial response method was tested in this way in non-coalescent liquids, and shown to lead to errors of the order of hundreds of percent. K1a values obtained with the initial response method were found to depend strongly on the probe's location in the vessel.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ceat.270120129
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    Paper (German National Licenses)
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