http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
유진형,한상원,염호기,조혜제,김예희,최원충 대한내과학회 1990 대한내과학회지 Vol.39 No.1
Gardner syndrome is a rare inherited disease transmitted with an autosomal dominant trait and characterized by a triad of intestinal polyposis, soft tissue and bone tumors along with other manifestations. For a person with Gardner syndrom the risk of malignant transformation of colon polyps during an adult life is ultimately 100%, and a better understanding of this genetic disorder is essential far surgeons, gastroenterologists, cancer researchers and geneticists alike. In Korea, a few cases have been reported, but there were none which showed various manifestations, including the triad of this syndrome. We experienced a case of Gardner syndrome in a 29-year-old female who showed familar gastrointestinal polyposis associated with epidermal inclusion cyst, frontal sinus osteoma, thyroid papillary cancer, and abnormal hypertrophy of the retinal epithelium.
Optimal Design of High Frequency Transformer for 150W Class Module-Integrated Converter
유진형,정태욱 대한전기학회 2015 Journal of Electrical Engineering & Technology Vol.10 No.1
Recently, the module-integrated converter has shown an interest in the photovoltaicgeneration system. In this system, the high frequency transformer should be compact and efficient. Theproposed method is based on the correlation characteristic between the copper and core loss tominimize the loss of transformer. By sizing an effective cross-sectional area and window area of core,the amount of loss is minimized. This paper presents the design and analysis of high frequencytransformer by using the 3D finite element model coupled with DC-DC converter circuit for moreaccurate analysis by considering the nonlinear voltage and current waveforms in converter circuit. Thecurrent waveform in each winding is realized by using the ideal DC voltage source and switchingcomponent. And, the thermal analysis is performed to satisfy the electrical and thermal design criteria.