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  • 11
    Electronic Resource
    Electronic Resource
    On a large difference in enthalpic virial coefficient among some isomers of alkoxyalcohol (1992)
    Springer
    Journal of thermal analysis and calorimetry 38 (1992), S. 1883-1890 
    Details
    ISSN: 1572-8943
    Keywords: flow microcalorimeter ; hydrophobic interaction ; molar excess enthalpies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Mittels eines Fluß-Mikrokalorimeters wurden bei 298.15 K im gesamten Konzentrationsintervall die molaren Überschußenthalpien für wäßrige Lösungen aus 3-Methoxy-1-Butanol (3-MB) und 1-Methoxy-2-Butanol (M-2B) gemessen. Anhand der experimentellen Daten erstellten wir den Enthalpiepaar-Wechselwirkungsparameter hxx und erhielten folgende Reihenfolge: hxx(3-MB) ≫ hxx(M-2B) Diese große Abweichung bei hxx legte uns einige neue Faktoren nahe, die einen Einfluß auf die hydrophobe Wechselwirkung haben können: “Grundgerüst”, “Hydroxylgruppen” als auch “Sauerstoffatome”.
    Notes: Abstract Molar excess enthalpies for aqueous solutions of 3-methoxy-1-butanol (3-MB) and 1-methoxy-2-butanol (M-2B) have been measured at 298.15 K over the whole concentration range with a flow microcalorimeter. From the experimental data, we evaluated the enthalpic interaction parameter hxx and obtained the following order:h xx (3 MB)≫ hxx(M-2B) This large difference in hxx. provided us some new factors which might have the influence on hydrophobic interaction: ‘fundamental frame’, ‘hydroxyl group’, and ‘ether oxygen atom’.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01974682
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  • 12
    Electronic Resource
    Electronic Resource
    Production of neutral protease from Aspergillus oryzae by a novel cultivation method on a microporous membrane (1994)
    Springer
    Biotechnology techniques 8 (1994), S. 249-254 
    Details
    ISSN: 1573-6784
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary A novel cultivation method using a microporous membrane (membrane-surface liquid culture) was developed, in which moulds are grown on the membrane surface with its opposite side being in contact with a liquid medium. The amount of neutral protease from Aspergillus oryzae produced was more than 10 times higher than that produced by the conventional liquid culture.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00155416
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    Paper (German National Licenses)
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  • 13
    Electronic Resource
    Electronic Resource
    A magnetic-functionally graded material manufactured with deformation-induced martensitic transformation (1993)
    Springer
    Journal of materials science 12 (1993), S. 326-328 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01910093
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  • 14
    Electronic Resource
    Electronic Resource
    Effects of ions in aqueous media on hydroxyapatite induction by silica gel and its relevance to bioactivity of bioactive glasses and glass-ceramics (1993)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Biomaterials 4 (1993), S. 221-229 
    Details
    ISSN: 1045-4861
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine , Technology
    Notes: Hydroxyapatite induction by a synthesized pure silica hydrogel was examined in various simulated body fluids (SBFs) having different magnesium, calcium, and phosphate ion concentrations as well as pH values. The silica hydrogel generated biologically active apatite on its surface by taking up calcium and phosphorous ionic groups from a surrounding SBF that was prepared to emulate the human plasma in inorganic composition. The induction period for apatite nucleation on the surface of the silica was largely decreased with the addition of a small amount of the calcium or phosphate ions to the SBF and with an increase in pH, but increased with the addition of magnesium ion. Bioactivity of bioactive materials like Bioglass® and glass-ceramic A-W was well interpreted in terms of the rate of apatite formation reflected in these results. Moreover, the results provide the basic knowledge for designing new bioactive materials. © 1993 John Wiley & Sons, Inc.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jab.770040303
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