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전현수(Hyun Su Jun),손유익(Yu Ik Son),임충재(Chung Jae Im),이준재(Joon Jae Lee) 한국멀티미디어학회 2009 한국멀티미디어학회 학술발표논문집 Vol.2009 No.1
초해상도 영상복원 기법이란 여러 장의 저해상도 영상을 이용하여 하나의 고해상도 영상을 획득하는 기법이다. 일반적으로 이 기법은 저해상도의 영상의 부족으로 ill-posed 문제가 되어, 원하지 않은 잡음이 생기게 된다. 이러한 문제점을 해결하기 위해 정규화 함수를 고려한다. 정규화 함수를 통해서 잡음을 제거하고 수렴의 비율을 향상시킨다. 본 논문에서는 거리와 방향에 따라 가중치 값을 고려한 새로운 정규화 함수를 제안하였으며, 실험결과에서 기존의 방법보다 좋은 영상을 얻음을 확인하였다.
체외 수정 후 임신 16주에 자궁 내 태아 Edwards 증후군과 난관임신으로 확인된 병합임신
정두용 ( Doo Yong Chung ),전현수 ( Hyun Su Jeon ),김현준 ( Hyun Jun Kim ) 대한산부인과학회 2008 Obstetrics & Gynecology Science Vol.51 No.1
Heterotopic pregnancy is defined as coexistence of intrauterine and ectopic pregnancy. The reported incidence of heterotopic pregnancy, which is normally rare, is particularly high (1%) after IVF treatment. It is important to have a high index of suspicion for the occurrence of heterotopic pregnancies because only 40% to 84% of cases can be diagnosed with transvaginal ultrasound at the initial presentation. Edwards syndrome occurs in 8,000 newborns and the incidence is much higher in elderly gravidas. We report a case of heterotopic pregnancy following IVF-ET resulting in 16 weeks of intrauterine pregnancy with fetal Edwards syndrome, and tubal pregnancy with a brief review of literature.
타일 시멘트 전단접착강도와 인장부착강도 비교 및 인발부착강도 타일커팅 영향에 관한 실험적 평가
이상현 ( Lee Sang-hyun ),기전도 ( Ki Jun-do ),조홈범 ( Cho Hong-bum ),김영선 ( Kim Young-sun ),문형재 ( Moon Hyung-jae ),전현수 ( Jeon Hyun-su ) 한국건축시공학회 2021 한국건축시공학회 학술발표대회 논문집 Vol.21 No.1
Selecting a proper tile cement for ceramic tile is important to secure tile construction quality. But there is some ambiguity in standards about evaluating adhesion test such as using KS L 1593 in Lab test but using KS L 1592 in site. So, this study aims to how to select proper tile cement for securing adhesion strength in site considering both tensile and shear adhesion strength of cement for ceramic tile. Also, when doing tensile adhesion test in site, there may be adhesion drop because of cutting tile with grinder. As a result, drop of adhesion strength is about 9% ans quality manager consider these factor and should select proper tile cement.
정승원(Seung Won Chung),전현수(Hyun Su Jun),백승국(Seung Kuk Baek),정광윤(Kwang Yoon Jung) 대한두경부종양학회 2004 대한두경부 종양학회지 Vol.20 No.1
Mucinous adenocarcinoma is rarely reported in head and neck region. In other organ, it usually occur in breast, gastrointenstinal tract and so on. The specific histologic findings of mucinous adenocarcinoma are the large amount of extracellular mucin and tumor cell nests such as floating in mucin pool. It may develop rarely in major or minor salivary gland, but only one case of mucinous adenocarcinoma originating from parotid gland was presented in south korea. We report a case of mucinous adenocarcinoma in the tongue base considered to develop from minor salivary gland with a review of literatures.
내시경적 조임근절개술후에 발생한 췌십이지장 가성동맥류 1예
박수영,김윤정,박진한,전현수,박시형,이영진,이은지,김지현 仁濟大學校 白病院 2010 仁濟醫學 Vol.31 No.-
We reported a case of pancreatic pseudoaneurysm, involving pancreaticoduodenal artery, developed after endoscopic retrograde cholangiopancreatography(ERCP) with endoscopic sphinterotomy. A 54 year old woman was transferred to our hospital due to sustained hematochezia and hypovolemia. A week before admission, she underwent ERCP with endoscopic sphinterotomy for acute cholangitis in local clinics. She developed abdominal pain and hematochezia at 12 hours after the procedures. A post procedure contrast enhanced computed tomography of abdomen demonstrated a pseudoaneurysm in inferior portion of pancreatic head. This was not present on the pre procedure contrast enhanced computed tomography of abdomen and was thought to arise from the pancreaticoduodenal artery as a complication of the pre sphincterotomy. She was brought to our emergency room in a state of hypovolemia. A upper endoscopy showed active bleeding from ampula of vater. An celiac angiography demonstrated pancreatic pseudoaneurysm involving inferior pancreaticoduodenal artery and selective coil embolization of was performed.