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  • 1
    Electronic Resource
    Electronic Resource
    Unsharp masking of low-dosed digital luminiscence radiographs: results of a receiver operating characteristics analysis (1996)
    Springer
    European radiology 6 (1996), S. 526-531 
    Details
    ISSN: 1432-1084
    Keywords: Chest diagnostics ; Projection radiography ; High-amplification screen-film systems ; Digital luminiscence radiography ; Filter kernel
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The extent to which the diagnostic performance of low-dosed storage phosphors can be improved by suitable image postprocessing was investigated. Storage phosphors radiographs and conventional 200- and 400-speed screen-film combinations of an antropomorphic chest phantom with simulated nodules and linear structures were compared. The detection of test bodies was determined in an ROC analysis based on 16 200 individual observations. The two analog screen-film systems did not differ significantly. As far as the storage phosphor radiographs are concerned, a higher diagnostic performance was achieved with a large filter kernel (S 40), whereas small filter kernels and edge-enhanced imaging modes reduced the detection of detail. The image quality of low-dosed storage phosphors is thus similar to high-amplification screen-film combinations if large filter kernels are used in postprocessing of the image.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00182488
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Thermoanalytical study of some salts of3d metals withd-tartaric acid (1996)
    Springer
    Journal of thermal analysis and calorimetry 46 (1996), S. 1403-1412 
    Details
    ISSN: 1572-8943
    Keywords: d-tartaric acid salts ; 3d metals ; IR spectra ; thermal analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The processes of dehydration and decomposition of the Mn(II), Fe(II), Co(II), Ni(II), Cu(II) and Zn(II) salts ofd-tartaric acid were studied by using TG, DTG and DTA methods in air or in argon, and also IR-spectroscopy. The equations of thermal decomposition were established. For the dehydration processes, the kinetic parametersn, E andInA were determined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01979253
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    Paper (German National Licenses)
    Fulltext
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