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According to the principle of IGCT(integrated gate commutated thyristor) and the real demand of IGCT gate drive circuit, a novel topology and its control strategy of IGCT gate drive circuit are proposed. A gate drive circuit for reverse-conducting IGCT with 1100A/4500V ratings adopting hard driven and integrated gate technique has been realized, which possesses high switching speed, simple structure...
Fractals have recently been attracting increasing research interest. Unlike conventional geometrical figures, fractals have unlimited details--a potentially useful feature for artistic images. One way to generate fractals is to use Iterated Function Systems (IFS). There have been significant research efforts on 2-D IFS. Programs for rendering 2-D IFS fractals are readily available. 3-D IFS appear...
This paper proposes a novel set of 16 features based on the statistics of geometrical attributes of connected regions in a sequence of binary images obtained from a texture image. Systematic comparison using all the Brodatz textures shows that the new set achieves a higher correct classification rate than the well-known Statistical Gray Level Dependence Matrix method, the recently proposed Statistical...
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