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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.
전현수 ( Jeon Hyeon Su ),홍혜진 ( Hong Hye Jin ),정병순 ( Jeong Byeong Sun ),윤병일 ( Yun Byeong Il ),김소정 ( Kim So Jeong ),김상윤 ( Kim Sang Yun ),신현준 ( Sin Hyeon Jun ),정두용 ( Jeong Du Yong ) 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.10
Actinomycosis, a rare disease entity in the upper genital tract, and caused by anaerobic bacteria, Actinomyces israelii, presents some difficulties in establishing a correct preoperative diagnosis. Pelvic actinomycosis has been reported more frequently in
전현수 ( Hyun Soo Jeon ),김현준 ( Hyun Jun Kim ),최영칠 ( Young Chil Choi ),이태의 ( Tae Ui Lee ),정두용 ( Doo Yong Chung ) 대한산부인과학회 2009 Obstetrics & Gynecology Science Vol.52 No.5
Intestinal obstruction occurs rarely as a cause of acute abdominal pain during pregnancy. It is very difficult to make diagnosis, as nausea, vomiting and abdominal pain are commonly associated with pregnancy, and X-rays are avoided if possible. However, delayed diagnosis can cause intestinal strangulation, which results in a high incidence of maternal morbidity, mortality, premature labor, and fetal loss. The incidence of intestinal obstruction seems to increase at the time of rapid uterine size changes such as between 16~20 weeks, 32~36 weeks or even in the puerperium. The possibility of intestinal obstruction must always be kept in mind when a pregnant woman with an operation scar on her abdomen develops abdominal pain. We present a case of small bowel obstruction during early pregnancy with a brief review of the literature who had the history of right salpingo-oophorectomy and appendectomy operation.
전현수 ( Hyun Soo Jeon ),신현준 ( Hyun Jun Shin ),김익희 ( Ick Hee Kim ),정홍 ( Hong Chung ),정두용 ( Doo Yong Chung ) 대한산부인과학회 2012 Obstetrics & Gynecology Science Vol.55 No.6
Pyometra is an uncommon condition in general population and caused by impairment of natural drainage of the cervix as a result of benign or malignant diseases, Spontaneous uterine perforation, a very rare complication of pyometra, carries significant morbidity and mortality and should be considered in the differential diagnosis of other peritonitis. Preoperative diagnosis of perforated pyometra is difficult due to old age, poor general condition, and symptoms that present as abdominal pain related to gastrointestinal diseases. If a diagnosis of perforated pyometra is delayed, then it will be associated with increased morbidity and mortality. In the causes of uterine perforation, pyometra should be considered because of requiring proper intervention. A diagnosis of spontaneous perforated pyometra should always be kept as a possibility in all cases of abdominal pains associated with peritonitis in elderly women.
수술 전 양측 태아 심장박동으로 확인된 자연적인 이소성 임신
전현수 ( Hyun Soo Jeon ),신현준 ( Hyun Jun Shin ),김익희 ( Ick Hee Kim ),정두용 ( Doo Yong Chung ) 대한산부인과학회 2012 Obstetrics & Gynecology Science Vol.55 No.5
Heterotopic pregnancy, combined intrauterine and extra-uterine (ectopic) pregnancy, is a potentially fatal condition that rarely occurs in natural conception cycle. There has been a rise of this entity mainly due to ovulation induction and in vitro fertilization performed in women undergoing assisted reproductive technology. Diagnosis is often delayed causing life threatening situations, since heterotopic pregnancy is still rare and unexpected in natural conception. We report a case of patient with spontaneous heterotopic pregnancy in the fi rst trimester with a review of the literature. Transvaginal ultrasound confi rmed heart activity of both embryos in uterus and the right ampulla portion.
기전도 ( Ki Jun-do ),이상현 ( Lee Sang-hyun ),김영선 ( Kim Young-sun ),전현수 ( Jeon Hyun-soo ),석원균 ( Seok Won-kyun ),양완희 ( Yang Wan-hee ) 한국건축시공학회 2023 한국건축시공학회 학술발표대회 논문집 Vol.23 No.2
Eco-friendly concrete contains only 5% of cement yet achieves equal or greater strength compared to conventional concrete, reducing salt-attack impact and hydration heat by more than 30% and ensuring higher construction quality for underground structures. Furthermore, eco-friendly concrete can reduce up to 90% of carbon dioxide emissions compared to traditional concrete, enabling a reduction of approximately 6,000 tons of carbon emissions for 1,000 of apartment units construction. This is equivalent to planting around 42,000 trees
Phosphate-PCM계 보급형 저발열 콘크리트 베트남 지역 현장 적용 평가
기전도 ( Ki Jun-do ),이상현 ( Lee Sang-hyun ),조홍범 ( Cho Hong-bum ),김영선 ( Kim Young-sun ),전현수 ( Jeon Hyun-soo ),양완희 ( Yang Wan-hee ) 한국건축시공학회 2022 한국건축시공학회 학술발표대회 논문집 Vol.22 No.2
This study aims to develop the hydration heat reducing material (powder type) to lower the heat of hydration of mass members in the extremely hot weather condition. In this study, we applied the developed material to the concrete that used two kinds of binders with cement and evaluate the concrete properties with it.
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.