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세탁기에서 열전소자를 이용한 VOCs 회수에 관한 연구
백선호(Seon-Ho Baek)⋅이운기(Un-gi Lee)⋅오명도(Myung-Do Oh) 한국실내환경학회 2008 한국실내환경학회지 Vol.5 No.4
Recently, it was under an obligation to install the VOCs recycling unit in the cleaners and the gas station to prevent from discharging VOCs emitted from the cleaners and the gas station. The objectives of this study was to investigate the VOCs recycling unit used thermoelectric module to recycle the organic solvent from the cleaners and after washing. The traditional way was the use of the VOCs recycling unit with the compressor. But the recycling unit has many weak points ; noise, size, danger of fire, additional pollution and so on. In order to improve these weak points, it was developed the new VOCs recycling unit using the thermoelectric module through this study. The cooling block with 32 thermoelectric module was applied to cool the hot VOCs where comes to occur from the dryer in high temperature condition. Also a water-cooled equipment was used to remove the heat from the hot surface of thermoelectric module. The experimental results from new VOCs recycling unit shows that the maximum recovery rate of the unit was 83.2 % and the recycled VOCs' purity was 98 % or more. And the noise problem was solved by applying the thermoelectric module to the VOCs recycling unit.
최명민,이운기,전인상,김현영,Choi, Myung-Min,Lee, Un-Gi,Jeon, In-Sang,Kim, Hyun-Young 대한소아외과학회 2008 소아외과 Vol.14 No.2
Colorectal cancer is extremely rare in children. Unlike adult colorectal cancer, the overall prognosis of colorectal cancer in children is poor. Delayed diagnosis, advanced stages of the disease at presentation, and mucinous type of histology are the major determinants of poor outcome in childhood. A 13-year-old boy with abdominal pain visited our hospital. Physical examination andabdominal ultrasonography identified acute appendicitis with perforation. He underwent appendectomy and then the pathologic findings revealed mucinous adenocarcinoma. The cancer was located at the transverse colon and had metastases on peritoneal wall at $2^{nd}$ laparotomy. Extended right hemicolectomy was performed. He underwent palliative chemotherapy. After 4 months later, hepatic metastasis and aggravated peritoneal seedings developed. He died of renal failure and pneumonia 13 months after operation. We need to have a high index of suspicion for the possibility of a malignant colorectal tumor in any childhood case with nonspecific signs and symptoms.
박승연(Seung Yeon Park),이정남(Jung Nam Lee),정민(Min Chung),이운기(Un Gi Lee),이영돈(Yeong Don Lee),오재환(Jae Hwan Oho),백정흠(Jung Hum Bak),박연호(Yeon Ho Park),김현영(Hyeon Yeong Kim),김건국(Keon Kuk Kim),최상태(Sang Tae Choi) 대한외과학회 2007 Annals of Surgical Treatment and Research(ASRT) Vol.72 No.2
Appendiceal mucocele is a cystic dilatation of the appendiceal lumen with mucus, which may be caused by either benign or malignant diseases. In this report, five cases of appendiceal mucocele are reported, three of which had a preoperative diagnosis of mucocele, whereas the others were found incidentally during the operation under the diagnosis of intussusception and periappendiceal abscess. All five patients underwent surgical resections, including one ileocecal resection and four right hemicolectomies. Histopathology revealed a mucinous cystadenoma in four cases, and a mucinous cystadenocarcinoma in one. There was no disease-related death during 18 months of follow-up.