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  • 1
    Electronic Resource
    Electronic Resource
    Plankton in the Norwegian-Greenland Sea: from living communities to sediment assemblages —an actualistic approach (1995)
    Springer
    International journal of earth sciences 84 (1995), S. 108-136 
    Details
    ISSN: 1437-3262
    Keywords: Micropalaeontology Palaeo-oceanography ; Plankton ; Sediment traps Recent and Holocene sediments ; Actualistic approach ; Norwegian-Greenland Sea
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract A synoptic study is carried out to reconstruct the development of the plankton community in the late Quaternary in the Norwegian-Greenland Sea. It comprises quantitative analyses of coccolithophores, dinoflagellate cysts, diatoms and radiolarians. An actualistic approach is applied to evaluate the different fossil records of these plankton groups. The preliminary results of the current investigation are reported here. The composition and distribution of living communities of coccolithophores are presented as an example. A close relationship between the distribution of regional groups and surface water masses is observed. Seasonal vertical fluxes of coccolithophores and radiolarians through the water column show similar patterns within different years. However, diatoms are highly variable, both in absolute fluxes and species composition. The differentiation of sporadic and periodic processes is evident only after several years of observation. During settling and sedimentation biotic and abiotic processes such as grazing, dissolution and lateral transport alter the assemblages. Investigation of death assemblages in surface sediments reveals that in spite of these alteration processes the abundance and species distribution are related to surface water masses. Higher abundances and diversities are usually found in sediments underlying the warm Norwegian Current. Concentrations decrease to the north-west towards the cold polar water masses. The sediment assemblages of all groups are strongly altered relicts of former living communities. They are characterized by distinct changes in species composition and absolute abundances related to palaeo-oceanographic development. Their variation through the sedimentary record is used to distinguish four ecostratigraphic units during the late Weichselian and Holocene.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00192245
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  • 2
    Electronic Resource
    Electronic Resource
    Concentration measurements during mass transfer across liquid-phase boundaries using planar laser induced fluorescence (PLIF) (2000)
    Springer
    Experiments in fluids 28 (2000), S. 279-281 
    Details
    ISSN: 1432-1114
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A non-intrusive optical measuring technique, the planar laser induced fluorescence is described to investigate mass transfer of a fluorescent dye (rhodamine B) across an interface between two partial immiscible liquids (1-butanol and water). The spatial resolution of the measurement technique used for the mass transfer investigations was 31.6 μm. The measured concentration profiles do not correspond with those, which were expected on the basis of usual theories. A solution equilibrium at the phase boundary could not be found.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003480050388
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Aromatenabbau im Biofilmrieselbettreaktor - ein Beitrag zur biologischen Gasreinigung (1995)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 67 (1995), S. 1173-1173 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.3306709127
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    Paper (German National Licenses)
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