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An explicit role of viscosity on the growth of semiconductor nanocrystals dispersed in silicate glass matrix is investigated. Theoretically, a simplified Arrhenius equation, lnη = A + B/T (where η is viscosity) is used to calculate the viscosities of various glass compositions. Using Diffusion - Controlled Growth model it is established that average radius of grain (QD) is inversely proportional to...
In recent years, electromagnetic simulation has seen many changes with adaptation of tools from other fields like DSP, Artificial Neural Networks, Genetic Algorithm etc. This presentation aims at informing the audience of the applications of Soft-Computing techniques for CAD in the area of Antennas and Propagation. It starts with the application of Artificial Neural Networks in design and analysis...
The cavity model is suitable for analytical solution to Helmholtzpsilas equation of patch antennas. Neural network based solutions are suggested as alternatives to conventional cavity methods for the circular microstrip antenna. A trial solution of the differential equation is developed incorporating the boundary conditions. Then the network is trained to satisfy the differential equation.
An improved formula for determination of resonant frequencies in different Sierpinski modes is developed from other existing formulas, using physical and analytical reasoning. The superiority of the proposed formula over other existing formulas is verified by comparing the results with those from experiments and simulations. A design formula for the side length of the generating Sierpinski triangle...
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