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      • KCI등재후보

        선천성 정낭형성부전증

        김경연,사공혁,정지훈,이종현,이승배,김은탁,김대경,우승효 대한남성과학회 2008 The World Journal of Men's Health Vol.26 No.3

        Congenital agenesis of the seminal vesicle is commonly associated with mullerian duct cysts and frequently combined with anomalies of the vas deferens or urinary tract. We report a case of a 29 year-old man with congenital agenesis of the seminal vesicle without any associated anomaly of the urogenital organs. He had infertility for 2 years and two semen analyses revealed azoospermia. There was no abnormal finding in physical examination of the testis, epididymis, or vas deferens. However, we could not locate the seminal vesicles in a transrectal ultrasound and computed tomography. We referred him to an infertility clinic for assisted reproductive technology.

      • SCOPUSKCI등재

        비압축성 나비어-스톡스 방정식의 완전 내재적 분리 방법

        김경연,백승진,성형진,Kim, Kyoung-Youn,Baek, Seung-Jin,Sung, Hyung-Jin 대한기계학회 2000 大韓機械學會論文集B Vol.24 No.10

        A new efficient numerical method for computing three-dimensional, unsteady, incompressible flows is presented. To eliminate the restriction of CFL condition, a fully-implicit time advancement in which the Crank-Nicolson method is used for both the diffusion and convection terms, is adopted. Based on an approximate block LU decomposition method, the velocity -pressure decoupling is achieved. The additional decoupling of the intermediate velocity components in the convection term is made for the fully -implicit time advancement scheme. Since the iterative procedures for the momentum equations are not required, the velocity components decouplings bring forth the reduction of computational cost. The second-order accuracy in time of the present numerical algorithm is ascertained by computing decaying vortices. The present decoupling method is applied to minimal channel flow unit with DNS (Direct Numerical Simulation).

      • KCI등재

        Walter Gropius의 Block Unit槪念과 集合住居의 特性에 관한 硏究

        김경연,김형우 대한건축학회 2009 대한건축학회논문집 Vol.25 No.1

        In this study, the role of Walter Gropius and the concept of ‘block unit’ are investigated by reviewing 6 cases, which are obtained from a literature review and an onsite survey of housing constructed during the advent and development of modern housing. The structures of the 'block unit' housing of Walter Gropius can be classified largely into 3 types: Basic type, Reiterate type, and Extension type. These structures were found to be presented as the combined styles , such as the low-rise reiterate housing, the mid-to-high rise flat-type housing, and the expansion style housing. The cases of block unit housing were analyzed, and the results are summarized as follows: 1) In response to the desperate need for low-income housing after World war, a method of mass producing the housing units at low cost was invented by standardizing housing types. 2) Even if the structures of ‘block unit’ housing can be classified into the above 3 types, variations of the types were explored to avoid uniformity. 3) In the case of the low-rise reiterate type housing, the advantages of the single detached housing and the complex housing as well as those of the urban style and the rural style were pursued. In the case of the mid-to-high rise flat-type housing, which repeats the basic block unit, the demand for the mass-produced housing at the time was apparent. Due to his design of the flat-type high-rise housing, Walter Gropius has been criticized as a culprit architect who created an urban space which has non-characteristic appearances and creates anonymous and dehumanizing atmosphere. However, his design intent should be re-evaluated in the context of housing problems of the time.

      • KCI등재

        난민-서사와 주권 횡단의 (불)가능성

        김경연 부산대학교 인문학연구소 2020 코기토 Vol.- No.92

        The purpose of this paper is to sound out the (im)possibility of sovereignty traversingthrough refugee-narrative and speculate on the possibility of executing literature as an ethical/political narrative to deconstruct the sovereignty system and derive a human rightssystem. This paper analyzed Seoul (1950), an unfinished full-length novel of Yi Kwang-suthat reenacted Chinese refugees, The Gate of Time (1982), a novel of Yi Chong-jun that paysattention to Vietnamese refugees, and The Third God (1982), a play written by YiChong-jun. By writing Seoul in 1950 when the world was reorganized from the colonial systeminto the cold war system and South Korea was emerging as the Republic of Korea, YiKwang-su utilized refugees as an effective device to constitute nationals of the Republic ofKorea as an emerging country. In other words, he tried to reinforce the ethnic nation systemby creating refugees as non-nationals and dangerous enemies who can perturb nationals. Onthe contrary, in The Gate of Time and The Third God by Yi Chong-jun, refugees can be interpretedas an exceptional narrative that doubts the obviousness of nationals, pleads for anintrospection on nationalism, and imagines what lies beyond the soverignty system. 이 글은 난민-서사를 통해 주권 횡단의 (불)가능성을 타진하고자 하며,이를 통해 문학이 주권체제를 탈구축하고 인권체제를 도래시키는 윤리적/정치적 서사로 이행할 수 있는 가능성을 사유하고자 했다. 이를 위해중국 난민을 비중 있게 재현한 이광수의 미완성 장편 서울 (1950)과 베트남 난민에 주목한 이청준의 소설 「시간의 문」(1982), 희곡 「제3의 신」(1982)을 분석했다. 해방과 더불어 식민체제에서 냉전체제로 세계가 재편되고 남한이 대한민국이라는 신생국가로 탄생하던 무렵인 1950년 창작된 서울 을 통해 이광수는 신생 대한민국 국민을 구성하기 위한 효과적인 장치로 난민을 동원한다. 다시 말해 국민을 교란할 수 있는 비국민,위험한 적으로 난민을 주조함으로써 민족국가 체제를 강화하고자 한 것이다. 이에 반해 베트남 난민을 서사화한 이청준의 「시간의 문」과 「제3의 신」에서 난민은 국민의 자명성을 의심하고 국가주의에 대한 성찰을호소하며 주권체제의 너머를 상상할 수 있는 존재로 표상된다. 무인도에표착한 난민들의 참극을 그리고 있는 「제3의 신」은 도래할 인민으로서난민을 정초함으로써 난민을 적대하는 국민의 서사도 난민을 연민하는휴머니즘 서사도 아닌 국민을 심문하고 주권체제와 불화하는 난민-서사의 가능성을 보여준다. 난민의 비참과 대면한 이후 삶과 예술의 전회를이행하는 한 사진작가/예술가를 부조한 「시간의 문」역시 자기에 폐쇄된자유가 아니라 몫 없는 난민들의 해방/구원하는 ‘어려운 자유’를 수행하는 한 예술가를 통해 국민 너머의 인간을 상상하고, 재현 너머의 다른 재현, 곧 윤리/정치로 도약하는 재현의 가능성을 사유하고 있다.

      • KCI등재

        직업무용수의 12주간 무용훈련에 따른 운동량이 심폐기능에 미치는 영향

        김경연 한국무용연구회 2008 한국무용연구 Vol.26 No.2

        본 연구는 직업무용수들의 무용훈련이 심폐기능에 미치는 영향을 분석하는데 그 목적이 있다. 연구대상자는 C시립무용단 소속 직업무용수 10명(남자2명, 여자8명)이었다. 무용훈련 프로그램은 전통무용과 창작무용을 주당 5일, 12주간 실시하였다. 훈련과정은 기본훈련과 정리훈련을 스트레칭과 박금슬 기본으로 20분간 실시하였고, 본 훈련은 오전 90분, 오후 120분으로 총 210분 동안 전통무용과 창작무용을 요일별로 번갈아 실시하였다. 측정된 각 요인의 훈련 전·후의 효과분석은 paired t-test를 사용하여 분석하였으며 그 결과는 다음과 같다. 신체구성 요인에서 근육량은 증가 하였고, 체지방량, 체지방율, BMI는 감소하였다. 심폐기능 요인에서 심박수 감소, 최대산소섭취량과 운동지속시간은 증가하여 혈액순환의 활성화와 효율성의 증가에 긍정적인 영향을 미치는 것으로 나타나, 심폐기능 향상을 위한 트레이닝과 동일한 효과가 나타났다. The purpose of this study is to analyzed the dance training effect on cardiovascular function and fatigue factors in blood. 10 professional dancer(two male and eight female) took park in this study. Dance training program practiced traditional and creative dance during 5 days in a week through consecutive 12 weeks. In the training, they alternately practiced basis and arrangement training based on stretching and Park, kem-sul for 20 minutes, and then also alternately practiced traditional and creative dance classified by respective week for total 120 minutes(90 minutes in AM training and 120 minutes in PM training). The paired t-test method are used to analyzed compare on significant effect for pre and post. The results are as follows. In change of body composition, the muscle mass was increased in dance training based on exercise strength, but fat, fat weight and BMI were respectively found to decrease. In change of cardiovascular function, heart rate was found to decrease in dance training. But VO2max and duration time were found to increase, and then were also found to have an affirmative effect on blood circulation and then some to have same effect with training for improving cardiovascular function.

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