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  • 1
    Electronic Resource
    Electronic Resource
    Time domain Born approximation (1982)
    Springer
    Journal of nondestructive evaluation 3 (1982), S. 45-53 
    Details
    ISSN: 1573-4862
    Keywords: Born approximation ; ultrasonic scattering ; NDE ; time domain
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Mathematics
    Notes: Abstract The time domain Born approximation for ultrasonic scattering from volume flaws in an elastic medium is described. Results are given both for the direct and the inverse problem. The time domain picture leads to simple intuitive formulas, which we illustrate by means of several simple examples. Particular emphasis is given to the front surface echo and its use in reconstructing the properties of the flaw.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00566954
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Induction of tetraploidy in Buddleia globosa (2000)
    Springer
    Plant cell, tissue and organ culture 63 (2000), S. 121-125 
    Details
    ISSN: 1573-5044
    Keywords: Buddleia × weyeriana ; colchicine ; flow cytometry ; micropropagation ; ploidy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The aim was to produce a tetraploid form of Buddleia globosa to facilitate introgression of yellow flower colour into B. davidii, which is naturally tetraploid. Protocols were established for the micropropagation of B. globosa and tetraploid plants were obtained by application in vitro of colchicine to pre-cultured excised nodal sections. Three concentrations of colchicine were applied (0.01%, 0.05% and 0.1% w/v) for 1, 2 or 3 days. At 0.01% tetraploids were produced only after 2 days of application. All other treatments produced at least one tetraploid. The colchicine technique was extremely effective: of 29 lines tested, 19 were tetraploid and 5 were mixoploid. The vegetative characteristics of these tetraploids are described and the flowering characteristics of the three that flowered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006434803003
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    Paper (German National Licenses)
    Fulltext
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