mercenary 发表于 2025-3-23 11:29:23
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Sonja Harken,Martin Hodsmantion of tsunami waves by bottom movements is considered. We formulate an appropriate initial-boundary-value problem and analyse the effect of the sharpness of vertical axisymmetric bottom disturbance and the disturbance duration on the generation of tsunami waves. The propagation of nonlinear waves傀儡 发表于 2025-3-24 00:34:30
Sonja Harken,Martin Hodsmanferent mathematical methods to the solution of typical problems in the theory of wave propagation and diffraction and analyze the obtained results. The rigorous diffraction theory distinguishes three approaches: the method of surface currents, where the diffracted field is represented as a superposireperfusion 发表于 2025-3-24 05:56:15
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Introduction,rganizations worldwide have become aware of the power of peer-to-peer fundraising. Most organizations don’t even dare to dream of such enormous effects. Yet, fundraising organizations of all types and sizes can make peer-to-peer fundraising work for them. Online fundraisers, in particular, hold a wide range of potentials and opportunities.