Nonlinear Iterative Nodal Method Applied to Neutron Flux Modal Analysis

A Matrix Iterative Method for Modal Sensitivity Analysis

A matrix iterative method is developed for modal sensitivify analysis of structures, which can be utilized ,a both distinct and repeated eigenvalue cases. The novel method needs only firs: order derivatives of the system motrices in the repeated e;genvalue case, and is easy to be implemented. A matrix iterative algorithm is presented based on the existence and uniqueness of the governing equati...

Convergence of iterative methods applied to Burgers-Huxley equation

Modal Transmission-line Method Applied to Radiowavepropagation through Periodic Walls

The Modal Transmission-Line (MTL) method is used to analyse the shielding effectiveness of building walls, which is an important parameter for the accurate planning of microcellular mobile networks. For that, the buildings walls are modelled as multi-layer periodic structures. After a description of the extended MTL-theory, the newly developed MTLmethod is applied to reinforced-concrete and blo...

Iterative regularization method applied to reconstruction of 3D scattering geometry

The problem of the shape reconstruction of a scatterer from the scattered field measured outside under the illumination of an incident plane wave is considered. Theoretically, the inversion algorithm is derived using integral equation formulations together with the Newton Kantorovich iterative regularization technique. Numerical results show that the good reconstruction is obtained with the onl...

Variational Iterative Method Applied to Variational Problems with Moving Boundaries

In this paper, He’s variational iterative method has been applied to give exact solution of the Euler Lagrange equation which arises from the variational problems with moving boundaries and isoperimetric problems. In this method, general Lagrange multipliers are introduced to construct correction functional for the variational problems. The initial approximations can be freely chosen with possi...