연속적 강소성 가공을 위한 스프링 가압형 ECAP 설계

진영관(Y. G. Jin),전병철(B. C. Jeon),임용택(Y. T. Im) 한국소성가공학회 2010 한국소성가공학회 학술대회 논문집 Vol.2010 No.10

Severe plastic deformation processing by equal channel angular pressing (ECAP) has attracted noticeable attention because it is an effective technique to produce the ultrafine-grained materials with enhanced mechanical properties. In the present study, split dies combined with the principle of spring-loaded preform process were newly proposed to provide a solution for the inefficiency of ECAP process. The designed and constructed spring-loaded ECAP set-up was used to make the continuous process feasible. Experiments for a single pass of ECAP were carried out to process aluminum alloy AA6061 by using the multi-stage former at room temperature. Vickers microhardness test was applied to investigate strength increase in the specimen deformed by ECAP. The spring-loaded ECAP proposed might be beneficial in commercializing a continuous application of ECAP to produce a high strength part in industry.

“유효정당수”(Effective Number of Parties) 계산법의 문제점

진영재(Jin Youngjae) 한국정치학회 2000 한국정치학회보 Vol.33 No.4

지금까지 ‘정당체계’ (political party system)를 경험적으로 정의하는데 가장 폭넓게 받아들여져 온 계산법은 락소와 타게페라의 ‘유효정당수’ (effective number of parties) 계산법이다. 논문의 목적은 단일 정당의 득표수(또는 의석수)를 기본으로 하여 계산되는 락소와 타게페라의 유효정당수 계산법이 어떻게 잘못된 직관을 우리에게 줄 수 있는지를 논의하는 것이다. 특히 본 논문은 이러한 목적을 수행하기 위해서 락소와 타게페라의 유효정당수 계산법의 기본적 문제점을 소위 선거자료에서 군소정당들이나 무소속의 의석수나 득표수를 나타내는 ‘기타’ (others)로 설정되는 항목이 큰 상황에서 찾는다. 이러한 경우에 계산방법은 몇 가지 편차를 보일 수 있는 바 군소정당들의 취급문제에 허점을 보인다. 군소정당이 다양한 정당연합(party coalition)에서 중요한 역할을 할 수 있다는 이론적 측면을 고려한다면, 군소정당을 유효정당의 범주에서 제외시키는 것은 극복되어야 할 문제점이다.

고대 탐라국의 대외관계

진영일 ( Yeong Il Jin ) 제주대학교 탐라문화연구소 2007 탐라문화 Vol.0 No.30

중학교 정보 교과서 비교 분석 및 개선 방안

진영학 ( Young Hak Jin ),허민 ( Min Huh ),김영식 ( Yung Sik Kim ) 한국컴퓨터교육학회 2010 컴퓨터교육학회 논문지 Vol.13 No.3

Theatre of the Audience

Jin, Youngjong(진영종) 한국동서비교문학학회 2009 동서 비교문학저널 Vol.0 No.21

  The play texts of English early modern theatre and Korean ground theatre in 1970s and 1980s are primarily for performance. Theatrical performance inevitably presupposes the audience. Thus, both theatres might well understood as the theatre of the audience in this respect. Therefore, how to accommodate the audience to the world of play comes to be primary concern of performance.   To accommodate the audience to the play world, both theatres tried out new experimentation. In this paper, the new experimentation of both theatres are scrutinized to illustrate the similarities between two theatres. In Fulgens and Lucres and Jindongah Gut, a certain dramatic character plays a role of mediator between the world of play and the real world. In both plays, it is clearly demonstrated that the audience has an overall control over the performance and the moderator, as an actor as well as a member of the audience, are mediating the world of play and the real world of the audience from the viewpoint of the audience.   The Old Wife’s Tale and Jinohgui Gut are approached from the perspective of the audience within the audience. The unique dramatic characters, the narrator in The Old Wife’s Tale and the commentator in Jinohgui Gut, dominate the general progress of the performance to a large extent. Both of the characters are neither the characters of the main play nor the audience of the main play. They move from the world of play and the real world, in other word, they are between the two worlds. They sit on the margin of the stage. Thus, the position of these two characters also reinforces their role from the audience’s viewpoint.   Two Shrew Plays are scrutinized to clarify the frame structure of Shakespearean theatre. Even though it is traced that the focus is moved from the audience to dramatic illusion, the audience perspective is still recognized in Shrew Plays. In Korean ground theatre, the general framing structure is very notable: Apuri, Bonpuri and Duepuri. The frame structure of Shakespearean theatre and Korean ground theatre also illustrate that their primary emphasis is put on the audience. Even though two theatres are very different in period and the subject matters, there are lots of similarities when they are approached from the viewpoint of the audience.

‘한국적 권력구조’의 기원적 형태

진영재(Jin Youngjae),최선(Choi Sun) 한국정치학회 2009 한국정치학회보 Vol.43 No.2

본 연구는 한국적 권력구조 형태의 기원을 찾기 위하여 해방 이전 대한민국임시정부 헌법에 나타난 권력구조의 특징을 분석한다. 대한민국임시정부는 1919년 최초의 근대적 헌법문서인「대한민국임시헌장」(1919. 4)을 발표하였다. 이후「대한민국임시헌법」(1차개정: 1919. 9), 「대한민국임시헌장」(2차개정: 1925. 4), 「대한민국임시약헌」(3차개정: 1927. 3), 「대한민국임시약헌」(4차개정: 1940. 10), 「대한민국임시헌장」(5차개정: 1944. 4)에 이르기까지 5차례의 개헌을 하였는데, 개헌에서 중요한 부분을 차지하는 것은 권력구조의 변경이었다. 그러나 이러한 임시정부의 권력구조에 대해서 여전히 다양한 해석이 존재하며 합의가 이루어지고 있지 않다. 따라서 본 연구는 임시정부 각 헌법의 권력구조 조항을 분석하기 위하여‘민주적 정통성의 이원화 여부’, 그리고‘국가수반과 행정수반의 분리여부’라는 두 기준으로 새로운 틀을 만들었다. 분석 결과 임시정부는 5차례에 이르는 헌법 개정의 과정에서 권력구조의 형태가 끊임없이 변화하였음에도 불구하고 큰 틀에서 일관성이 발견되었다. 첫째, 민주적 정통성이 일원화되어 있다. 둘째, 의회가 행정부를 선출하지만 행정부를 불신임 할 수 없으며, 행정부도 의회를 해산할 수 없다. 셋째, 1925년 2차 개정부터 내각수반인 국무령의 임기를 보장하였으며, 1927년 3차 개정 부터는 국무위원의 임기도 보장하였다. 넷째, 국가수반과 행정수반이 일원화되어 있다. 다섯째, 의원내각제적 바탕을 가지고 있다. 이러한 특징은 임시정부의 권력구조가 대통령제나 의원내각제 혹은 이원정부제가 아닌 일원정부제임을 보여준다. 그리고 임시정부의 헌법논의와 운용의 경험은 해방 이후 미군정기의 헌법구상과 제헌국회의 헌법제정 과정에 직ㆍ간접적으로 영향을 미쳤다. 현행 헌법의 권력구조 역시 이러한 헌정사적 흐름 속에 존재한다. This paper intends to analyze the power structures of the Provisional Constitutions of the Korean Provisional Government(1919~1945) to find out the origins of the Korean Power Structure. The Korean Provisional Government declared the Provisional Charter(Ym-si-heon-jang) that was the first modern constitution of Korea in 1919. After that, the Korean Provisional Government revised the Provisional Constitutions about five times to 1945: the Provisional Constitution(Ym-si-heon-beob) of 1919.9, the Provisional Charter(Ym-si-heon-jang) of 1925, the Provisional Constitution(Ym-si-yak-heon) of 1927, the Provisional Constitution(Ym-si-yak-heon) of 1940, and the Provisional Charter(Ym-si-heon-jang) of 1944. The main points of the revisions were changing power structures of the Provisional Constitutions. But there are various interpretations about the Provisional Constitutions. Thus, in order to analyze these constitutional documents, we make a new criterion with the notions of ‘democratic legitimacy’and ‘head of state and head of government’. Although the types of power structures were changed frequently, we find out comprehensively several consistent features. First, it is based on the unitary democratic legitimacy. Second, the assembly organizes the administration, but it cannot have no confidence in the administration. And the administration cannot dissolve the assembly. Third, the term of the chief executive has been fixed since 1925, and that of the executive has been also fixed since 1927. Fourth, the head of state is also the head of government. Finally, it is based on the parliamentary cabinet system. Comprehensively, we draw the conclusion that the type of the power structure of the Korean Previsional Government was similar to the ‘unitary executive system’.

고등어(Scomber japonicus) 피부계의 미세구조 및 조직화학

진영국 ( Young Guk Jin ),이정식 ( Jung Sick Lee ) 한국어류학회 2005 韓國魚類學會誌 Vol.17 No.2

스프링강의 피로파괴에 미치는 압축잔류응력의 영향

진영범(Young-Beom Jin),박경동(Keyung-Dong Park) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.4

Recetly the steel parts used for automiles and trains are required to be used under higher stress than ever before in need of the weight down. However, there are a lot of problems with developing such materials that require expensive tools, and a great deal of time and effort. Therefore, the improvement of fatigue strength and fatigue life are mainly focused on by adopting residual stress. And got the following characterisics from crack growth test carried out stress ratio. Fatigue life shows more improvement in the Un-peening material. And compressive residual stress of surface on the Shot-peening processed operate resistance force of fatigue. So we cam obtain fallowings. (1) The fatigue crack growth rate on stage Ⅱ is conspicuous with the size of compressive residual stress and is dependent on Paris equation. (2) Although the maximum compressive residual stress is deeply and widely formed from surface, fatigue life does not improve than when maximum compressive residual stress is formed in surface. (3) The threshold stress intensity factor range is increased with increasing compressive residual stress.

해양관광학 학문체계 진단 및 정립 방향 : 『해양관광학연구』게재논문 분석을 중심으로

진영재(Jin, Young-Jae) 한국해양관광학회 2020 해양관광학연구 Vol.13 No.2

The purpose of this study is to find out formulation direction of marine tourism studies by analysis of published paper of marine Tourism research. In order to achieve this goals, surveyed against marine tourism research in korea on database of marine tourism society website. In particular, based on website data, key words and research methods were analyzed. At the result, this study showed that marine tourism research field in korea can be divided into six types. In this context this study presents a typology of marine tourism research result to search formulation direction of marine tourism research in future.

Multi-patch Surface를 이용한 3D Facial Model 제작 효율 향상에 관한 연구

진영애(Young-Ae Jin),김종기(Chong-Gi Kim),김치용(Chee-Yong Kim) 한국멀티미디어학회 2003 한국멀티미디어학회 학술발표논문집 Vol.2003 No.1