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  • 1
    Electronic Resource
    Electronic Resource
    A Study of the Activation of Carbon Using Sample Controlled Thermal Analysis (1999)
    Springer
    Journal of thermal analysis and calorimetry 56 (1999), S. 267-273 
    Details
    ISSN: 1572-8943
    Keywords: carbon activation ; SCTA ; TPO
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract A constant rate method involving the control of the concentration of evolved CO2 at a constant level was used to study the air activation of pure and copper-doped carbon prepared from sodium carboxymethylcellulose. Whereas under a linear heating regime, both types of carbon reacted suddenly and quickly with O2, under constant rate conditions this violent reaction was avoided and oxidation proceeded steadily at a lower temperature until complete burn off of the carbon was achieved. The catalytic effect of the copper on carbon gasification was noted with lower reaction temperatures for both linear heating (380°C compared to 500°C) and for the constant rate experiments (320°C compared to 400°C).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010117727252
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Automated statistical methods for measuring the strength of block ciphers (1997)
    Springer
    Statistics and computing 7 (1997), S. 125-135 
    Details
    ISSN: 1573-1375
    Keywords: Encryption algorithm ; block cipher ; stream cipher ; black-box analysis ; statistical tests
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mathematics
    Notes: Abstract A block cipher is one of the most common forms of algorithms used for data encryption. This paper describes an efficient set of statistical methods for analysing the security of these algorithms under the black-box approach. The procedures can be fully automated, which provides the designer or user of a block cipher with a useful set of tools for security analysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018521732085
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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