نتایج جستجو برای: central difference
تعداد نتایج: 869819 فیلتر نتایج به سال:
-A parallel algorithm for the class of two-point boundary value problems y" = f(z, y), y(0) = A, y(1) = B with ~ > 0 and ~ continuous on [0,1] x (—oo,oc) is presented. Using an idea similar to that in [1], we divide [0,1] into p different divisions, each division consisting of N or (N+1) (N small) unequal intervals. A high-order finite difference scheme developed for general nonuniform mesh is ...
Acoustic simulation has always played an important role in the development of new ultrasound imaging techniques. In nonlinear ultrasound imaging particularly, the simulators are accurate but time-consuming, because of the high derivative order of the propagation equation and to the classic solution based on finite difference schemes. This article presents a fast 3D + t nonlinear ultrasound simu...
the quest for power has formed much of the world history especially in 20th and 21st centuries. oil (energy) particularly after industrial revolution has been a tool for conquest and power and has been transformed to a geopolitical issue. from a geopolitical point of view this has been the case for the last two centuries in central asia and caucasus. central asia and caucasus has always been...
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