Jaeyeol Kim

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This paper presents a method for designing the control loop for dc-to-dc converters when uncertainties exist in the ac characteristics of the converter’s load. In the proposed method, a converter is initially considered as a stand-alone module feeding a current sink load and the control loop of the converter is then designed in a way that maximizes the(More)
A new simplified structure of bit-interleaved coded modulation (BICM) for second generation digital video broadcasting (DVB) standards, such as DVB-T2, DVB-C2, and DVB-NGH is proposed. In the BICM of the DVB standards, parity and column-twist interleavers are employed in order to avoid possible performance degradation due to the structural weaknesses of the(More)
BACKGROUND Acute pulmonary thromboembolism (APTE) remains an important cause of morbidity and mortality in Western countries. In Korea, both the incidence and the mortality rate of APTE were thought to be low compared to Western countries. We performed the present study to investigate the current status of APTE in Korea. METHODS Eight hundred and eight(More)
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