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권기호(Ki Ho Kwon),박양훈(Yang Hoon Park),서보정(Bo Jung Seo),최정숙(Jung Sook Choi),이복근(Bock Keun Lee),김영묵(Young Mook Kim),최한용(Han Yong Choi),황순철(Soon Chul Hwang),이충원(Choong Won Lee) 대한내과학회 1994 대한내과학회지 Vol.47 No.4
h A 50-year old female patient admitted with a 1-week-istory of pain and bulging in the left lower abdominal area following a bout of coughing. The pain was exacervated when a Valsalva`s manuver was performed and was somewhat relieved by lying supine. The patient reported a 10-day history of severe coughing, but no fever. She had been taking antitussive for 10 days, but no aspirin and anticoagulant. She had been suffered from bronchial asthma for 8 years. The ultrasound, CT & needle aspiration confirmed the diagnosis of a hematoma between the internal oblique & external oblique muscle of abdominal wall. She was treated conservatively with a heating pad, analgesics, elastic bandages, and instructed to rest. Her bronchial asthma was treated with antitussives, aminophilline, B2 agonist inhalator, and prednisolon. This case report describes the association between relative minor strain and the formation of a hematoma of anterior abdominal wall. A review of the literature was undertaken to discuss the cause, diagnosis, and treatment of a anterior abdominal wall hematoma.
권기호(Kwon Ki-ho) 한국어문학회 2010 語文學 Vol.0 No.110
The world and the human being are under absurd conditions. This article aims to confront such a reality with poetry and to solve the absurd conditions drawing on the theories of the existentialists. That is, this article attempts to show how the quoted poets overcome the absurdity of the world and the human being, by using the ideas of Sartre, Camus, G. Marcel, and K. Jaspers. And at the end I also cite poems of social concerns. The poems cited in this article seem to cure the people’s loss of faith in agony and to show the result of sublimation through poems, which relates to Aristotle’s catharsis to a large extent.
A Study on Mixed Methods for Reduction of Large Scale System
권기호,최계근,Kwon, Ki Ho,Choi, Keh Kun The Institute of Electronics and Information Engin 1987 전자공학회논문지 Vol.24 No.3
The model reduction methods of the linear time invariant continuous systems are proposed. The energy dispersion method is used to obtain the model denominator. And the model numerator is found by the modified residue method or the time moment matching method. The methods suggested are compared with the method suggested by Lucas and give good results.
권기호(Ki-Ho Kwon),이상정(Sang-Jeong Lee) 한국항공우주학회 2012 韓國航空宇宙學會誌 Vol.40 No.7
본 논문은 저궤도 관측위성에 탑재된 GPS 수신기의 궤도상의 성능과 지상 시험 결과를 비교 분석하였다. 지상 시험 환경을 구축하여 다양한 환경에서 시험을 수행하였으며 2006년 발사 이후 6년째 운영 중인 GPS 수신기의 궤도상의 데이터 분석도 수행하였다. 궤도상의 데이터는 초기 운영, 1차 임무 완료 시점 및 최근 결과를 선택하여 정리하였다. 위치 및 시각 동기 정밀도에 대하여 지상 시험과 궤도상의 성능이 일치하여 지상 시험의 유효성을 확인하였다. 본 논문에서 제시한 시험 환경 및 분석 방법은 향후 위성용 GPS 수신기 개발 및 검증에 도움이 될 것으로 예상한다. This paper presents a performance analysis of the GPS(Global Positioning System) receiver on board in LEO satellites, based on the comparison of its in-orbit performances and corresponding ground test results. An extensive ground tests on the subject GPS receiver has been performed in diverse conditions under the right frame of ground test environments and the analysis of in-orbit performances has also been performed with the huge amount of accumulated GPS data which has been in operation for 6 years since its launch on 2006. For this analysis, we chose three sets of in-orbit data; the data during the early mission period, the data at the 3-year mission completion time, and the most recent in-orbit data. As the performance measures, we selected the position and time synchronization accuracy, and the comparative analysis shows the concurrency between the in-orbit performances and the ground test results with in these performance measures, verifying the validity of the ground test. It is expected that the test configuration and analysis method presented in this paper can be applied to developing and verifying the future Koreanized satellite GPS receivers.