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경성 경구강 내시경을 이용한 게실 절개술 후 재발로 개방 게실 절제술을 시행한 젠커게실 1예
이영정,박기남,이정현,정준영 대한이비인후과학회 2022 대한이비인후과학회지 두경부외과학 Vol.65 No.12
The traditional approach to diagnosis and management of Zenker’s diverticulum is open surgicaltreatment. More recently, however, endoscopic technique is also frequently used for Zenker’sdiverticulum because it has advantages of shortening operation time, postoperativehospitalization and reducing the complication such as recurrent laryngeal nerve injury. A75-year-old male, who was diagnosed with Zenker’s diverticulum, underwent a secondaryopen diverticulectomy after failed attempt at rigid transoral endoscopic diverticulotomy. Herewe report this case with a review of literature.
리브로 보강된 강관접합부의 실용설계법에 관한 해석적 연구
이영정,김갑순,김강식,김우범,정수영 대한건축학회 2001 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.21 No.2
In current design, the strength formula for a Gusset-Tube connections stiffened with rib-plate is proposed only in the limited case. And then it is almost impossible to evaluate the ultimate strength theoretically because of its complexity of the behavior. So in this study, finite element analysis were performed to investigate the ultimate strength of a Gusset-Tube connections stiffened with rib-plate. In previous study, it was examined that lateral load is replace by equivalent moment(M_ω) of tube-wall and normal component(P_υ) of the load. Therefore strength formulas of M_ω, and P_υ were proposed considering gusset length, tube thickness, diameter and stiffened length. And interrelations of each force(P, P_υ and M_ω) were drawn from the parametric study based on finite element method.
판과 쉘의 선형탄성해석에서 저차고체요소의 성능 비교연구
이영정,이상진 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)
The purpose of this study is to investigate the performance of lower order solid finite elements in the elastic analysis of plate and shell structures. The 8-node solid finite elements are formulated with three different ways such as the use of standard strain-displacement relationship, B-bar method and enhanced assumed strain method. The convergence of solid elements is investigated by using comprehensive three obstacle shell finite element analysis benchmark tests. From numerical results, the solid finite element with enhanced assumed strain method exhibit a better performance than other two solid finite elements. Finally, we propose the present numerical results as a benchmark test suite for future solid finite element development.
〈大正十年代〉の志賀直哉 : 「暗夜行路」·「雨蛙」·古美術 ‘Anyakoro’‘Amagaeru’and Kobijyutu
永井善久 中央大學校 日本硏究所 2002 日本 硏究 Vol.0 No.17
本稿では、<大正十年代> にアクチュアリティを失ったて作家として內容的·思想的に否定されるようになった志賀直哉が、そうであるにもかかわらず、<藝術性>という普遍的な價値を持つ作品を創造する作家として依然文壇で威信を保っていた機制を、志賀の作品·言說に卽して檢討した。「公定の作家」となった志賀にアクチュアリティを <再發見>する試みが小林秀雄にょってなされるのは、昭和四年のことである。志賀の作家イメ-ジはこれ以降、また推移することになる。
영정흔일 대한용접접합학회 1983 대한용접·접합학회지 Vol.1 No.2
이 논문에서는 먼저 연강 모재에 대해서 여러 가지의 반복 속도로 대기 중과 해수 중 및 3% Nacl 용액 중에서의 피로시험을 실시하고, 피로 균열 발생수명 및 전파수명에 미치는 속도의 영향을 검사함과 동시에 피로수명의 추정법에 대해서 해설한다. 그리고 연강의 완전용입 용접 이음의 toe 부에 대하여 추정한 피로 균열 발생수명과, 파랑주기에 가까운 10cpm의 반복 속도에서 피로시험을 실시하여 구한 수명과를 비교한 결과에 대해서도 소개하고자 한다.