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    Öğe
    Determination of seed moisture constants (KE, CW) for the viability equation for watermelon, melon, and cucumber seeds
    (Ista-Int Seed Testing Assoc, 2011) Demir, I.; Kenanoglu, B. B.; Hay, F.; Mavi, K.; Celikkol, T.
    The effect of moisture on seed longevity during experimental storage was investigated in cucumber (Cucumis sativus L.), melon (Cucumis melo L.), and watermelon (Citrullus lanatus Matsum and Nakai). Seeds were stored hermetically at various moisture contents between 8.0 and 17.0% (fresh weight basis) at 35 degrees C for up to 215, 366, and 175 days for cucumber, melon, and watermelon, respectively. Normal germination percentages were determined periodically. A one-step approach was taken to analyze the effects of moisture on longevity and to estimate K-E and C-W. K-E and C-W values were found to be 4.86 and 1.59 for watermelon, 6.11 and 2.59 for melon, and 5.35 and 2.03 for cucumber, respectively. Watermelon seeds are the most sensitive to seed storage, whilst melon seeds have the greatest longevity. These constants can be used to predict the viability of these cucurbit seeds under various storage conditions.
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    Öğe
    Wave modelling through layered media using the BEM
    (2006) Sari, Murat; Demir, I.
    The present study analyzes the 2D scalar wave propagation problems in a time domain BEM through large and complex geophysical structures. To achieve this, a time domain BEM formulation is extended to multi-layered geophysical structures. Using appropriate temporal variations for the field variables the time-related kernels are obtained explicitly. The BEM solutions presented for layered media are generated using synthetic seismograms and are seen to be stable. The seismograms obtained in terms of the BEM and FDM are compared. © 2006 Asian Network for Scientific Information.