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  • 1
    Electronic Resource
    Electronic Resource
    Response of The Lacewing Chrysopa cognata to Pheromones of its Aphid Prey (1998)
    Springer
    Journal of chemical ecology 24 (1998), S. 631-643 
    Details
    ISSN: 1573-1561
    Keywords: Kairomone ; Chrysopa cognata Wesmael ; aphid pheromones ; cyclopentanoids ; nepetalactone ; nepetalactol ; (E)-β-farnesene ; Y-tube ; electroantennogram ; field trapping
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The lacewing Chrysopa cognata, one of the principal predators of aphids in Korea, was tested for responses to the aphid sex pheromone components (4aS,7S,7aR)-nepetalactone and (1R,4aS,7S,7aR)-nepetalactol and the aphid alarm pheromone (E)-β-farnesene. Electroantennogram responses were obtained to the sex pheromone components but not to (E)-β-farnesene. The sex pheromone components were attractive in a Y-tube olfactometer assay and in field trials with water traps, but no attraction was observed to (E)-β-farnesene.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1022386001722
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  • 2
    Electronic Resource
    Electronic Resource
    Analysis of cylindrical shells under patch loading (1986)
    New York, NY [u.a.] : Wiley-Blackwell
    Communications in Applied Numerical Methods 2 (1986), S. 571-585 
    Details
    ISSN: 0748-8025
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The object of this study is to predict the peak values of the stress resultants and couples in a relatively thick cylindrical shell under a concentrated local loading in order to guide the design of a large-scale reinforced concrete test specimen. Four finite element programs, SHORE-III, two versions of RONALD, and ANSYS, were employed here. The SHORE-III and RONALD analyses considered a complete cantilevered cylinder, while the ANSYS model treated a cylindrical panel free along the curved edge and constrained in various ways along the longitudinal edge. Comprehensive comparative results are provided for the linear elastic loading case, which indicate the magnitude and attenuation of concentrated loading effects on cylindrical shells and panels.
    Additional Material: 22 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cnm.1630020605
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    Paper (German National Licenses)
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