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  • 1
    Electronic Resource
    Electronic Resource
    Photoconductivity in a photocrosslinkable second-order nonlinear optical polymer (1991)
    Springer
    Applied physics 53 (1991), S. 279-281 
    Details
    ISSN: 1432-0649
    Keywords: 42.65 ; 72.40 ; 78.65
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Photoconductivity measurements on a stable photocrosslinkable nonlinear optical polymer — PVCN (polyvinylcinnamate)/CNNB-R (3-cinnamoyloxy-4-[4-N,N-diethylamino)-2-cinnamoyloxy phenylazo] nitrobenzene) are reported. Photoconductivity in this polymer system, in both crosslinked and uncrosslinked states, was observed without introducing any sensitizer or carrier-transport agents. Absorption of CNNB-R (λpeak=518 nm) results in photocarrier generation and it is conjectured that CNNB-R also plays a role in the carrier transport. Such polymers are candidate materials for photorefraction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00331814
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Dam-Break flood forecasting in Piemonte region, northwest Italy (1991)
    Springer
    Water resources management 5 (1991), S. 261-270 
    Details
    ISSN: 1573-1650
    Keywords: Dam-break events ; flood damage ; Piemonte region ; Italy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Notes: Abstract Six major reservoirs in Piemonte region, northwest Italy, have been examined in order to assess the possible flood damages to the downstream area. In this paper, some results of the hydraulic study are presented. The floods are simulated by computer models with the input data which describe the imagined dam-break events as well as other facts. Some important practical aspects of the work are extensively discussed, i.e. the problems concerning determination of the dam-breaches, the influence of the breach parameters, and estimation of the hydraulic resistance factors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00421995
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    Paper (German National Licenses)
    Fulltext
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