A second - order non - uniform grid essentially non - oscillatory difference scheme
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The essentially non - oscillatory characteristic difference method for convection - diffusion equation
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A linear impulsive delay difference equation is considered , and snfficient conditions are obtained for the oscillation of nontrivial solutions and asymptotic behaviors of non - oscillatory solutions
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The asymptotic behavior of solutions for a class of high order delay partial differential equations is established in this paper . some asymptotic behaviors of non - oscillatory solutions are obtained
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In this paper , we develop the high - order accurate essentially non - oscillatory ( eno ) schemes on one and two - dimensional structured meshes in the finite volume formulation , and discuss their applications in hyperbolic conservation laws
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Non - oscillatory and non - free - parameters dissipative ( nnd ) finite difference scheme ( a total variation diminishing scheme ) with second order accuracy was adopted to solve the fluid dynamic equations , a finite rate chemical reaction model was developed to calculate ingredient producing rate , and an adi over relaxation iteration technique was used to solve the electromagnetic discretized equations
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Y type and s type dual - path saw mass sensors have been tested and analysed in detail . their frequency domain characteristics and time domain characteristics have been tested under non - oscillatory mode . transmission characteristics of y type s type and " - " type saw mass sensors are derived by p matrix representation . primary delay signal triple reflection signal and quintuple reflection signal of these sensor devices have been analysed in detail
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In this paper , high - order accurate weighted essentially non - oscillatory ( weno ) schemes are investigated and their applications in hyperbolic conservation laws are discussed . based on this , a new weno difference scheme which based on dispersion - relation - preserving relation is developed , and representative test cases with this scheme for computational aeroacoustics ( caa ) problems has been implemented and compared in order to test capability of wave capturing ; in addition , weno schemes generally do not converge at high order in the presence of contact discontinuity of euler equations , so a conservative front tracking technique coupling weno schemes and level set method to simulate the translating density profile is presented here , and numerical simulation with this technique for representative test case has been implemented and results show the desired accuracy
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In this paper , by use of the idea of constructing of high accurate eno ( essentially non - oscillatory ) schemes applied successfully in the simulation of euler equations , a new kind of high accurate finite volume schemes have been constructed in lagrangian coordination . combining with the eno interpolation , two kinds of conservative remapping algorithms have been developed for arbitrary mesh systems
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In the first part , it is addressed that the combination of wavelet analysis and hidden markov models is applied to image segmentation , especially to document segmentation . in another part , the essentially non - oscillatory ( eno ) wavelet transforms and its application to image compression are addressed . the primary work in the dissertation is in detail : 1
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