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  • 1
    Online-Ressource
    Online-Ressource
    Model experiments on the spatial altering of modes
    Acoustical Society of America (ASA) ; 1982
    In:  The Journal of the Acoustical Society of America Vol. 72, No. S1 ( 1982-11-01), p. S59-S59
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 72, No. S1 ( 1982-11-01), p. S59-S59
    Kurzfassung: The spatial filtering of modes is very important both for theoretical and practical purposes. Spatial filtering of modes can verify the normal-mode theory and is also a way to match the waveguide fields. It will have an important application in the investigation of the interaction between the sound wave and environmental factors such as the acoustic characteristics of ocean bottom, internal wave,…etc., because it is easier to study separate modes. In this paper, the model experiments include the following: (1) The spatial filtering of modes in a long water tank without absorbers on the side wall. (2) The suppression of the near interference point source by means of selected mode. (3) The effects of surface waves on each individual mode and the sum of all modes at a point receiver.
    Materialart: Online-Ressource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.2019967
    RVK:
    EQ 1000
    Sprache: Englisch
    Verlag: Acoustical Society of America (ASA)
    Publikationsdatum: 1982
    ZDB Id: 1461063-2
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 2
    Online-Ressource
    Online-Ressource
    Induction of Frost Hardiness in Tomato Leaves by Short-term Cold Acclimation
    American Society for Horticultural Science ; 1983
    In:  HortScience Vol. 18, No. 5 ( 1983-10), p. 730-732
    Details
    In: HortScience, American Society for Horticultural Science, Vol. 18, No. 5 ( 1983-10), p. 730-732
    Kurzfassung: The effects of low temperatures on chilling sensitivity and frost hardiness were investigated in leaf tissues of the tomato ( Lycopersicon esculentum Mill.). A regime of 20°/15°C (day/night) temperature reduces chilling sensitivity. Subsequently, plants were able to survive at 5°, 2°, and even 0° (day/night) for cold acclimation. Using these stepwise treatments, leaf tissues of ‘Early Cascade’ tomato could be cold-acclimated to tolerate extracellular freezing at -3°, whereas nontreated plants were killed at -1.5°.
    Materialart: Online-Ressource
    ISSN: 0018-5345 , 2327-9834
    URL: Article
    DOI: 10.21273/HORTSCI.18.5.730
    Sprache: Unbekannt
    Verlag: American Society for Horticultural Science
    Publikationsdatum: 1983
    ZDB Id: 2040198-X
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
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