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  • 1980-1984  (12)
  • 1970-1974  (7)
  • 1960-1964  (1)
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Keywords
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Das Fließverhalten von Perbunanlatices (1961)
    Springer
    Rheologica acta 1 (1961), S. 584-592 
    Details
    ISSN: 1435-1528
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Zusammenfassung Es wurde das Fließverhalten einiger Perbunanlatices in einem Konzentrationsbereich von 0,5 bis 47,3% und in einem Temperaturintervall von 18 bis 35°C eingehend untersucht. Unterhalb von 25% verhalten sich die Latices wieNewtonsche Flüssigkeiten. Bei höheren Konzentrationen hängt ihr Fließverhalten von der Schubspannung ab: Bis etwa 100 dyn · cm−2 zeigen die Emulsionen ebenfalls dasNewtonsche, darüber hinaus jedoch strukturviskoses Verhalten. Die relative bzw. spezifische Viskosität erwiesen sich imNewtonschen Bereich bei allen Konzentrationen als temperatur-unabhängig. Die Meßergebnisse lassen sich durch eine modifizierteRobinson-Beziehung beschreiben. Mit Hilfe einer einfachen Arbeitshypothese, daß die Latexteilchen durch eine dünne immobilisierte Flüssigkeitsschicht (Hydrathülle) vergrößert werden, gelingt es, unsere sämtlichen Meßergebnisse aus demNewtonschen Bereich sowie einige aus der Literatur bekannte Daten über das Fließverhalten von Naturlatex durch eine gemeinsame Kurve darzustellen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01989129
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  • 2
    Electronic Resource
    Electronic Resource
    The Cesaro-Denjoy-Bochner scale of integration (1983)
    Springer
    Acta mathematica hungarica 42 (1983), S. 243-255 
    Details
    ISSN: 1588-2632
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01956773
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  • 3
    Electronic Resource
    Electronic Resource
    Analysis of egg protein in five carps (1981)
    Springer
    Hydrobiologia 77 (1981), S. 97-102 
    Details
    ISSN: 1573-5117
    Keywords: Egg protein ; carps
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Quantitative and qualitative studies of proteins from the mature eggs of five carps—Cirrhinus mrigala, Labeo rohita, Cyprinus carpio, Hypophthalmichthys molitrix, Ctenopharyngodon idella were made. It is found that there is much difference both in the quantity and quality of proteins in these five species. As egg proteins in a species depend on the genome, it is suggested that the study of these protein types may be considered as an additional parameter for characterisation of the fish types.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00008867
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  • 4
    Electronic Resource
    Electronic Resource
    On approximate derivates and their properties (1972)
    Springer
    Acta mathematica hungarica 22 (1972), S. 309-320 
    Details
    ISSN: 1588-2632
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01896423
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  • 5
    Electronic Resource
    Electronic Resource
    Bioconversion of cellulose into ethanol by Clostridium thermocellum - product inhibition (1983)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 25 (1983), S. 1109-1126 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Direct anaerobic bioconversion of cellulosic substances into ethanol by Clostridium thermocellum ATCC 27405 has been carried out at 60°C and pH 7.0 (initial for 100 L) under continuous sparging of oxygen free nitrogen in a culture vessel. Raw bagasse, mild alkali-treated bagasse, and solka floc were used as substrates. The extent of conversion of raw bagasse (cellulose, 50%; hemicellulose, 25%; lignin, 19%) was observed as 52% (w/w) and 79% (w/w) in the case of mild alkali and steam-treated bagasse (cellulose, 72%; hemicellulose, 11%; lignin, 12%), respectively. Use of bagasse concentration above 10 g/L showed a decreased rate in ethanol production. An inoculum age between 28-30 h and cell mass content of 0.027-0.036 g/L (dry basis) were used. The results obtained with raw and pretreated bagasse have been compared with those of highly pure Solka Floc (hemicellulose, 10%). Studies on the product inhibition indicated a linear fall of the percent of survivors with time. An Arrhenius type correlation between the cell decay rate constant and the product concentration was predicted. Even at low levels, the inhibitory effects of products on cell viability, the specific growth rate, and extracellular cellulase enzyme were observed.
    Additional Material: 16 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260250418
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  • 6
    Electronic Resource
    Electronic Resource
    The effect of temperature on KL a in thermophilic cultivation of Bacillus stearothermophilus (1984)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 26 (1984), S. 1136-1138 
    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: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260260921
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  • 7
    Electronic Resource
    Electronic Resource
    Increased production of cellulase of Trichoderma sp. by pH cycling and temperature profiling (1980)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 22 (1980), S. 2237-2250 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Cultivation of Trichoderma reesei QM 9414 on 3% (w/v) cellulose medium (C/N ratio = 8.5) produced 4.5 IU/ml celulase 180 hr at a cell growth of 8.0 g/liter (0.266 g cell/g cellulose). It corresponded to an average cellulase productivity 25.0 IU/liter/hr (3.5 IU/g cell/hr). In the same medium 9.5 g/liter cell mass (0.316 g cell/g cellulose), 6.2 IU/ml cellulase, and 38.75 IU/liter/hr (4.0 IU/g cell/hr) cellulase productivity could be obtained using pH cycling condition during cultivation. Cell mass, cellulase yield, and productivity were further increased to 10.0 g/liter, 7.2 IU/ml, and 44.0 IU/liter/hr (4.5 IU/g cell/hr), respectively, by simultaneous pH cycling and temperature profiling strategy. Results are described.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260221104
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  • 8
    Electronic Resource
    Electronic Resource
    A kinetic model for methanogenesis of acetic acid in a multireactor system (1984)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 26 (1984), S. 257-264 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Bioconversion of acetic acid to methane by a crude culture of methanogens in a continuous multireactor system was investigated. Culture of methanogens was drawn from an active cow-dung digester (12 days) and was grown in a semisynthetic medium (pH 6.3, 37°C) with acetic acid as the sole carbon source. The solubilities of CO2, HCO3-, and CO32- increased with the rise in pH and exercised considerable influence on the gas composition. Various mechanisms for methanogenesis of acetic acid based on the available pathways were considered. Experimental data were compared with these mechanisms, the best fit was determined, and the corresponding rate expression was identified. This mechanism predicted that, of the total methane produced, 72%;comes from acetic acid directly and 28%;via the CO2 reduction route.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260260310
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  • 9
    Electronic Resource
    Electronic Resource
    Monohydroxytrifluoroborates and double fluoroborates (1970)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 379 (1970), S. 106-111 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Es wird die Darstellung von Hydroxotrifluoroboraten von Rb, Cs, (CH3)4N+, Nitron, Ni2+, Ni(py)42+ und Co(NH3)63+ beschrieben. Darüber hinaus wurden neuartige 1 : 1-Doppelsalze aus Tetrafluoro- und Hydroxotrifluoroborat erhalten. Von einigen dieser Salze werden Röntgenpulver- und IR-Daten mitgeteilt.
    Notes: The preparation of monohydroxotrifluoroborates of rubidium, cesium, tetramethylammonium, nitron, nickel, tetrapyridine nickel and hexammine cobalt(III) is described. Besides, a new series of double salts, comprising one mole tetrafluoroborate and one mole of monohydroxotrifluoroborate of the same cation, are described. The X-ray and IR-spectra of some of these salts are reported.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19703790118
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  • 10
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    Sensitivity of Low-Energy Three-Body Properties to the Off-Shell Two-BodytMatrix (1973)
    American Physical Society
    Details
    Publication Date: 1973-03-01
    Print ISSN: 0556-2813
    Electronic ISSN: 1089-490X
    Topics: Physics
    Published by American Physical Society
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