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Large periodic structures in computational electromagnetics need the management of large number of unknowns, implying high memory use and computation time. Apart from fast techniques such as the multilevel fast multipole algorithm, this kind of problems might be accelerated taking advantage of periodicity properties. We will present some techniques based on the application of the FFT to the method...
Large finite periodic problems are suitable for the application of methods to achieve high acceleration rates in the solution process. Applying distributed macrobasis decomposition to compress the method of moments impedance matrix combined to slotFFT algorithm allow to cover larger structures closer to real cases.
The solution of very large electromagnetic problems might be obtained using large computer facilities as singular High Performance Computers or Supercomputers. In these solutions, suitable numerical methods for large structures should be used, as fast methods e.g. Multilevel Fast Multipole Algorithms. The implementation of this kind of methods in a Computer capable to deal with the large amount of...
The resistance of internal mammary artery (IMA) toward atherosclerosis is not well understood. In plasma, homocysteine (Hcy) occurs in reduced, oxidized, homocysteine thiolactone and a component of proteins as a result of N- or S-homocysteinylation. We evaluated S/N-homocysteinylated protein levels in IMA fragments of patients undergoing coronary artery bypass grafting, and whether they were affected...
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