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  • Chemistry  (3)
  • 89-586; Calculated; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Helium-3/Helium-4; Helium-3/Helium-4, standard deviation; Helium-4/Neon-20; Isotope ratio mass spectrometry; Leg89; Sample type; South Pacific  (1)
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  • 1
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    (Table 1) 3He/4He and 4He/20Ne ratios in pore water and gas in deep-sea sediments at DSDP Site 89-586
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 89-586; Calculated; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Helium-3/Helium-4; Helium-3/Helium-4, standard deviation; Helium-4/Neon-20; Isotope ratio mass spectrometry; Leg89; Sample type; South Pacific
    Type: Dataset
    Format: text/tab-separated-values, 12 data points
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    DATA PANGAEA
  • 2
    Electronic Resource
    Electronic Resource
    Adsorption chromatography of proteins: Determination of optimum conditions (1987)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 33 (1987), S. 1426-1434 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A simple and convenient method for predicting optimum chromatographic conditions from linear gradient elution experiments with a small column is presented and verified experimentally. The method was found to be very useful for a rapid survey of the nature of unknown proteins, for the estimation of optimum chromatographic conditions, and for scaling up the separation of proteins in ion exchange and hydrophobic interaction chromatography.Two applications were successfully carried out on the basis of the proposed method: (1) Separation of a protein mixture of ovalbumin and β-lactoglobulins A and B with both anion and cation ion exchange columns by means of column switching technique. In this method, the sample is always subjected to the elution process until it is collected as a purified fraction through the two columns. A special valving system is devised for this method. (2) Large-scale ion exchange chromatography separation of β-galactosidase. Linear gradient elution of crude β-galactosidase was carried out with a 30 L ion exchange gel column on the basis of data obtained with a small (23 mL) column.
    Additional Material: 16 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690330903
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Turbulence structure of dilute drag-reducing polymer solutions in a rectangular open channel flow (1983)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 29 (1983), S. 611-617 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The drag reduction phenomenon in a rectangular open channel flow was examined by measuring the longitudinal velocity by means of a laser Doppler anemometer. Statistical analysis of the fluctuating velocity showed that the most significant effect of the polymer additive (polyethylene oxide) on the large-scale turbulent motion appeared in the turbulent core of an open channel flow. The scale of bursting phenomenon was enlarged by the polymer additive, and the typical ejection process was detected as the remarkable negative fluctuating velocity throughout the buffer and turbulent core regions except near the free surface.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690290414
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  • 4
    Electronic Resource
    Electronic Resource
    Measurement and correlation of mutual diffusion coefficients for styrene-butadiene rubber(SBR)-n-nonane systems (1993)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 33 (1993), S. 322-327 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The mutual diffusion coefficients for styrene-butadiene rubber(SBR)-n-nonane systems were measured using a sorption apparatus with a quartz spring at 100 and 130°C for mass fractions of n-nonane ranging from 0 to 0.16. The mutual diffusion coefficients were correlated with good agreement by the free-volume theory.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760330603
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