Young‐Ho Kim
성균관대학교 의과대학 · 생화학·유전·분자생물학
Young-Ho Kim 교수의 연구실은 주로 태양광 발전 시스템의 효율성 향상을 위한 고성능 파wr 전환 기술에 중점을 두고 있습니다. 특히 PV 앰프 모듈용 인터리브드 플라이백 인버터의 효율 개선을 위한 스위칭 손실 최소화 및 동기식 레귤레이터 제어 기법을 핵심 연구 주제로 다룹니다. 또한, 임상 영상 및 소화기 질환 진단 분야에서도 대장내 endoscopy 및 CMV 결장염 치료 전략에 대한 임상 연구를 병행하고 있습니다. 이는 에너지 전환 기술과 의료 기술의 융합적 접근을 추구하는 연구 성향을 보여줍니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
In this paper, a new control strategy for improving weighted efficiency in photovoltaic (PV) ac module-type interleaved flyback inverters (ILFIs) is proposed. The efficiency of the ILFI for PV ac modules has to be high, not only for the maximum power, but also for other power levels according to weather conditions. For PV power conversion efficiency improvement in all load ranges, a new control method for an ILFI according to the output of the PV module is proposed in this paper. The proposed me
The split-dose magnesium citrate-low-volume (2 liters) PEG regimen was more efficient than and preferred to the conventional regimen of 4 liters of PEG, and it was equally efficient as, but, again, preferred to the split-dose (2+2 liters) regimen for morning colonoscopy.
In this paper, a weighted-efficiency enhancement control method for an interleaved flyback inverter using a synchronous rectifier is proposed based on photovoltaic ac modules. In this control method, the operation of the synchronous rectifier is classified according to the voltage spike across the main switch. When the voltage spike across main switch is lower than the rating voltage of main switch, the operation of the active clamp circuit is interrupted to reduce the switching loss of the auxi
The risk of neurodegenerative diseases was higher in IBD patients than in the non-IBD population.
The prognosis of early-onset sporadic colorectal cancer (CRC) patients remains controversial. The objective of this study was to assess the long-term outcome and prognostic factors of sporadic CRC in young patients.From 2006 to 2011, 8207 patients underwent curative or palliative surgery for CRCs in our institution. A total of 693 patients who were ≤45 years old with sporadic CRC were enrolled as the young group. A total of 1823 patients aged between 56 and 65 years were identified as middle-age
Colonoscopy is preferred to sigmoidoscopy for diagnosis of CMV colitis. Antiviral therapy should not be mandatory for a subset of patients with CMV colitis.
A previous genome-wide methylation array for colorectal cancer (CRC) identified aberrant promoter methylation of eyes absent 4 (EYA4). However, the correlations between EYA4 methylation and gene expression, the role played by EYA4 protein in colorectal carcinogenesis, and results of the gene-enrichment and functional annotation analysis have not yet been established. We analyzed the EYA4 methylation status and found EYA4 promoter methylation in CRC cell lines (100%), CRC tissues (93.5%) and adva
