http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
박상재 ( Park Sang Jae ),김선회 ( Kim Seon Hoe ),홍은경 ( Hong Eun Gyeong ),장진영 ( Jang Jin Yeong ),윤유석 ( Yun Yu Seog ),김성훈 ( Kim Seong Hun ),이우진 ( Lee U Jin ),이순애 ( Lee Sun Ae ),김영훈 ( Kim Yeong Hun ),이종석 ( Lee 대한소화기학회 2003 대한소화기학회 추계학술대회 Vol.2003 No.-
<목적> 팽대부주위암에서 림프절 전이를 판정하는데 있어 기존의 H/E 염색법과 비교하여, 면역조직화학염색법을 이용한 미세전이 검사법이 갖는 병리학적, 임상적 의의를 알아보고 림프절 전이 경로를 발히고자 한다. <대상 및 방법> 2002년 1월부터 2002년 12월까지 팽대부주위암으로 췌십이지장절제술(유문보존췌십이지장절제술 28예, Whipple 수술 6예)을 시행한 34예(췌두부암 14예, 담관암 13예, 팽대부암 6예, 십이지장암 1예)를 대상으로 전
운전조건 및 유로형상에 따른 고체고분자형 연료전지의 수소극에서의 수분관리
홍인권 ( In Kwon Hong ),김선회 ( Sun Hoe Kim ) 한국공업화학회 2011 공업화학 Vol.22 No.5
전극면적 25 cm2 고체고분자형 연료전지를 이용하여 수소극의 수분관리에 관한 연구를 진행하였다. 수분관리는 연료 전지의 운전에 있어서 가장 핵심적인 인자 중의 하나이다. 본 연구에서는 연료극의 flooding의 위험성이 가장 높은 작동전류밀도 200 mA/cm2에서 수소극의 가습 및 온도 등의 운전조건의 변화, 그리고 유로 형상의 영향성을 평가하였다. 또한 연료극과 공기극의 양론비를 변화시킴과 동시에 유로의 형상에 따른 영향성을 파악하기 위한 실험을 실시하였다. 연료전지의 운전에 있어서 연료극과 공기극의 양론비에 따른 수분관리의 영향성을 확인할 수 있었고 또한 온도변화 및 가습조건의 변화에 따른 성능의 변화 역시 관찰할 수 있었다. A PEMFC single cell with the active area of 25 cm2 was used to verify the effect of water management in the anode. Water management is one of the most critical operating variables. In this paper the effect of operating condition change, such as anode humidification and temperature, was investigated under constant current density of 200 mA/cm2 where possible anode flooding operating area. Also experiments to observe the effect of the anode and cathode stoichiometry change and flow field design on the water management were performed. The water management was effected by the stoichimetry change. The temperature and humidification change also affected the fuel cell performance.
오승근,권오중,윤여규,김영철,김선회 대한내분비학회 1999 Endocrinology and metabolism Vol.14 No.2
Background: Endocrine pancreas tumor is a rare disease which incidence is less than 2% of all pancreatic tumors. But it comprises various types of tumor and usually secretes several hormones from one type of tumor although the patient with this tumor complains of sole symptom associated with only one hormone. The mechanism and clinical significance of multiple hormone secretion in the endocrine pancreas tumom are not yet clearly defined. Methods: We analyzed retrospectively the clinicopathologic features of 20 cases which were operated at Seoul National University Hospital during the period between February 1989 and May 1998. Results: The most common tumor was insulinoma (13 cases) and the second most common tumor was nonfunctioning tumor (6 cases). There was one case of somatostatinoma. Most of the patients with insulinoma complained of neuroglycopenic symptoms. There were 9 cases (45.0%) in which the tumors secreted more than two kinds of hormones, 7 cases in insulinoma, 2 cases in nonfunctioning tumors. Whether the tumor secreted multiple hormones was detected by the method of immunohistochemical staining. Though the tumors secreted more than two kinds of hormones, the patients with the tumors complained of symptoms which were associated with the cell type most strongly stained by immunohistochemical method. Whether or not the tumors secreted multiple hormones was not associated with the pathologic features such as tumor size, histologic patterns of the tumor, status of tumor cell differentiation and malignancy. Conclusion: From this results, we suggest that endocrine tumors of the pancreas secreted multiple hormones not by the mechanism of dedifferentiation from already differentiated endocrine cells but by the mechanism of neogenesis of multipotent islet stem cells. Since the relationship between the function of multiple hormone secretion in the endocrine pancreas tumors and islet stem cell would be significant, further study should be needed to find out the function of stem cells and application of stem cells to clinical use. (J Kor Soc Endocrinol 14:379-391, 1999)