스윕과 린을 적용한 부분흡입형 초음속 터빈의 성능 특성에 관한 수치적 연구

권태운(Taeun Kwon),정수인(Sooin Jeong),조종재(Jongjae Cho),김귀순(Kuisoon Kim),정은환(Eunhwan Jeong) 한국추진공학회 2010 한국추진공학회 학술대회논문집 Vol.2010 No.11

본 논문에서는 스윕과 린의 각도에 따른 부분흡입형 초음속 터빈의 성능 특성을 분석하기 위하여 유동해석을 실시하였다. 유동해석은 스윕과 린의 3가지 각도(5°, 10°, 15°)에 대해 수행되었다. 해석결과, 전반적으로 스윕 각도에 커질수록 효율이 증가하였다. 다만, 스윕 각도가 5°일 때에는 기본익형 보다 효율이 더 떨어졌다. 린 각도가 커질수록 전압력 손실은 줄어들었지만 정효율은 감소하였다. The present study deals with numerical flow analysis to investigate the effect of sweep and lean on the performance characteristics of a partial admission supersonic turbine. The flow analysis was performed for three different angles. The angles of sweep and lean are 5°, 10°, 15°. The results of the flow analysis showed that the efficiency is improved as the sweep angle is increased. However, a sweep angle of 5° was less effective in comparison with the baseline model. The total pressure loss was reduced as the lean angle is increased, but the total to static efficiency was decreased.

한 중년 남성의 생애에 나타난 평생학습 경험 내러티브 탐구: 사이버대학에서 전공한 한국어교육을 중심으로

김태은 ( Taeun Kim ) 사단법인 아시아문화학술원 2021 인문사회 21 Vol.12 No.1

이 연구는 한 명의 중년 남성의 생애에 나타난 평생학습 경험을 통해 한 개인이 실제로 어떠한 상황에서 다시 학습을 시작하게 되고, 학습을 통해 어떠한 삶의 변화들이 일어나는지 알아보는 데 목적이 있다. 이를 위해 연구 참여자의 내러티브를 심층 분석하였으며, 시간 순서대로 정리하여 한 개인의학습생애사를 구성하였다. 연구 결과 첫째, 연구 참여자는 현재까지 총 세 차례의 평생학습을 경험하였으며 학습의 이유는 모두 직업 능력 향상 및 직업 전환을 위한 것이었다. 둘째, 최초에 경험한 고등교육에서의 전공 선택과는 달리 사이버대학에서의 전공은 연구 참여자가 자신의 적성을 찾은 것으로 이는 적극적인 학습을 하는 데 있어 중요한 요인이 되었다. 셋째, 연구 참여자는 사이버대학을 졸업하고 자격증을 취득하였지만 원했던 직업인 한국어교원이 되지는 못하였는데 이는 결국 하고자 한 일에 대한 정보 부족이었다. 다만 본 연구는 단일 사례로 결과를 일반화하기에는 어려움이 있다. 따라서 향후 사회인구학적 특성이 동일한 보다 많은 인원을 대상으로 연구가 다시 한 번 이루어질 필요가 있다. The purpose of this study is to explore how an individual in real life situations decides to learn again and what kind of life changes it brings through a lifelong learning experience of a middle-aged man. To carry out the research, the narratives of the study participant were analyzed in depth and organized in chronological order to construct an history of an individual's learning life. The results showed that the participant has experienced a total of three lifelong learning so far, and the reasons for learning were all for improving his vocational skills and switching jobs. Unlike the experience of choosing a major for the first time in high school, the participant found his own interest at cyber university, and this became an important factor in active learning. Lastly, although the research participant graduated from cyber university and obtained certificates, he failed to attain a position as a Korean language teacher, which was ultimately due to lack of information on the work that he wanted to do. The result of this study is difficult to generalize as it is a single-case study. Therefore, further studies of more people with the same socio-demographic characteristics need to be conducted in the future.

『율리시스』에서 스티븐의 또 다른 자아로서의 멀리건

민태운 ( Taeun Min ) 한국근대영미소설학회 2019 근대 영미소설 Vol.26 No.3

This study examines how Mulligan can be Stephen’s alter ego in Ulysses, even though he appears to be exactly the opposite and an enemy of Stephen. For example, it is true that Stephen is angered by Mulligan’s charge of matricide, but in a sense Mulligan said what Stephen wanted to say but had repressed. Stephen himself feels that he is somehow to blame for his mother’s death; that is why he feels the pang of conscience and sees the ghost of his mother repeatedly. Similarly, Mulligan, in Stephen’s thought, derides Stephen’s fearfulness, and this is another way of saying that Stephen’s superego or other self is mocking his own cowardice. Mockery is Mulligan’s defining characteristic; he keeps mocking Stephen. However, Mulligan’s mocking words echo in Stephen’s mind and the former’s voice becomes indistinguishable from the latter’s voice. Therefore, Mulligan’s accusation toward Stephen comes to be Stephen’s own accusation toward himself. In their roles, Stephen and Mulligan foreshadow the emergence of Shem and Shaun in Finnegans Wake. It is worth noting that Shem and Shaun are also inseparable Doppelgängers, even if they are enemies. In this connection, it is significant that Stephen’s repeated thoughts of Cranly, Mulligan’s precursor, in association with Wilde’s unspeakable love shows his love for Cranly. Whenever Stephen thinks of Cranly, he remembers Cranly’s arm and that of Mulligan, and this part of the body carries a sexual charge. A male friend of man, according to Aristotle, is his alter ego. Interestingly, the inner dialogue in Stephen’s mind takes place between Philip Sober and Philip Drunk in the “Circe” episode. Stephen’s sober self and drunken self seem to reflect Bloom and Mulligan respectively, thus confirming the possibility that Mulligan can be Stephen’s alter ego.

국제결혼 안내 프로그램의 인권교육 교수 및 학습지도안 개발에 관한 고찰

김태은 ( Taeun Kim ) 사단법인 아시아문화학술원 2021 인문사회 21 Vol.12 No.4

본 연구의 목적은 법무부에서 내국인 초청자(=배우자)를 대상으로 시행하고 있는 국제결혼 안내 프로그램에서 2018년 3월부터 추가된 인권교육에 대한 교수・학습지도안을 구성해 보는 데 있다. 총 4시간으로 구성된 현재 국제결혼 안내 프로그램에서 앞의 1, 2, 3차시에 대한 교수・학습지도안은 2014년에 연구・개발된 바 있으나 4차시 수업인 인권교육은 교육 내용의 골자만 제시되어 있는 상태이기 때문이다. 연구 방법은 법무부와 국가인권위원회의 보고서 및 기존 개발 자료에 기반을 두었고, 현재 본 프로그램에서 인권교육 전문 강사로 활동하고 있는 연구자의 경험을 바탕으로 또 다른 전문 강사 1명, 담당 실무자 1명을 통해 교육 내용에 대한 타당성 검증을 하였다. 이 연구는 국제결혼 안내 프로그램에서 인권교육에 대한 세부 교육내용을 수립해 보고자 한 시도라는 점에서 의의가 있으나 본 프로그램의 인권교육 전문 강사들에게 보다 많은 검증을 받지 못한 부분은 한계로 남는다. 또한 향후에는 국제결혼 안내 프로그램에 참여하여 인권교육을 받은 교육생들의 실제 인식 변화 등에 대한 후속 연구가 필요하다. The purpose of this study was to structure teaching and lesson plan on human rights education that was added to the international marriage guidance program targeting the national petitioners (=spouses) by the Ministry of Justice since March, 2018. The 4-hour long international marriage guidance program’s 1st, 2nd, and 3rd teaching and lesson plans were studied and developed in 2014, however, the 4th plan on human rights only touches on the gist of the human rights education. The research method was based on reports from the Ministry of Justice and the National Human Rights Commission and existing development data. Based on the experience of a researcher currently working as a human rights education instructor in this program, another expert instructor and one in charge were verified. This study is meaningful as it attempted to establish a detailed educational content on human rights within the international marriage guidance program. However, the lack of more verification by the professional educators on human rights education in this program remains a limitation. Future studies must observe the actual changes in perspectives of the students that took the human rights class and participated in the international marriage guidance program.

Analysis of bivariate recurrent event data with zero inflation

Kim, Taeun,Kim, Yang-Jin The Korean Statistical Society 2020 Communications for statistical applications and me Vol.27 No.1

Recurrent event data frequently occur in clinical studies, demography, engineering reliability and so on (Cook and Lawless, The Statistical Analysis of Recurrent Events, Springer, 2007). Sometimes, two or more different but related type of recurrent events may occur simultaneously. In this study, our interest is to estimate the covariate effect on bivariate recurrent event times with zero inflations. Such zero inflation can be related with susceptibility. In the context of bivariate recurrent event data, furthermore, such susceptibilities may be different according to the type of event. We propose a joint model including both two intensity functions and two cure rate functions. Bivariate frailty effects are adopted to model the correlation between recurrent events. Parameter estimates are obtained by maximizing the likelihood derived under a piecewise constant hazard assumption. According to simulation results, the proposed method brings unbiased estimates while the model ignoring cure rate models gives underestimated covariate effects and overestimated variance estimates. We apply the proposed method to a set of bivariate recurrent infection data in a study of child patients with leukemia.

몰개성의 예술가 조이스: 「피네건스 웨이크」 제1권 제5장

민태운 ( Taeun Min ) 한국제임스조이스학회 2017 제임스조이스저널 Vol.23 No.1

This study examines the impersonality of the artist evinced in James Joyce`s Finnegans Wake I.5. The ideal artist as expressed by Stephen in A Portrait of the Artist as a Young Man “like the God of the creation, remains within or behind or beyond or above his handiwork, invisible, refined out of existence, indifferent, paring his fingernails.” Finnegans Wake seems to illustrate the hidden author remote from the sufferings of the reader, a reader lost in his vain efforts at the search for the meanings of the almost unreadable text. Joyce`s experiment in his last work can be seen as nearly impersonal sentence combinations and variation beyond all point of view. We cannot find the traces of the author on the surface. He suggests that it is not himself, but somebody else who wrote this work. Further, he implies that his voice is hidden behind multiple voices. That is why his work can be said to be plagiarized. He picks up the words and sentences of other people and pastes them in his work without quotation marks. As “the last word in stolentelling,” Finnegans Wake is the resulting rubbish of others` words. However, these efforts at impersonality paradoxically make the figure of Joyce all the more conspicuous. Pretending to be refined out of existence and to pare his fingernails, the artist is actually involved in shaping our view of his work. Thus, it is not surprising for the author to say that the existence of the author is undeniable and that this “chaosmos” has a sort of order or structure despite its seeming chaos. Through the strategy of impersonality, Joyce seems to succeed in drawing the reader`s attention to his position as a modernist writer, and to the question of intertextuality characteristic of his works.

복도에서의 원호경로를 이용한 이동 로봇의 회전

김태은(Taeun Kim),권지욱(Ji-Wook Kwon),이진섭(Jin-Seob Lee),좌동경(Dongkyoung Chwa),홍석교(Suk-Kyo Hong) 대한전기학회 2008 대한전기학회 학술대회 논문집 Vol.2008 No.7(초록집)

「아이올로스」 장에서 조이스의 문예부흥운동/게일민족주의 비판

민태운 ( Taeun Min ) 한국현대영미소설학회 2021 현대영미소설 Vol.28 No.2

In “Scylla and Charybdis” and “Cyclops” of Ulysses, Joyce openly criticizes or parodies the Irish Literary Revival and Gael nationalism. The chapter, “Aeolus” is also covertly critical of this movement. However, compared with the other two episodes, “Aeolus” has not been extensively studied in terms of this theme. This paper examines how “Aeolus” presents critiques of this movement. Dawson’s essay praises the nature of Ireland by excessively beautifying it, like the Irish revivalists who mystify the Irish past and sanctify her soil. His “peerless panorama of Ireland’s portfolio” is contrasted with Stephen’s realistic view of the Dublin city. MacHugh’s idea of “spiritual” Irish, as contrasted with materialistic British, also idealizes his nation by rationalizing the failure of the Irish people in the present life. Joyce would never have accepted Taylor’s speech on the revival of the Irish language, even though the writer was impressed by Taylor’s suggestion that the Irish should not succumb to British domination. This is confirmed by the parody of this speech in the “Ithaca” chapter; the speech is demystified and will be emulated by Stephen’s Parable. MacHugh’s claims about the spiritual nature of the Irish are also challenged by this parody. While Taylor idealizes the heroic story of Moses, Stephen realistically describes the petty bourgeois life in his parable. If Taylor’s speech reflects the revivalist’s tendency to idealize and inflate the past and country, the parable shows the present and the heart of the city in its historical context. Stephen deflates, demythologizes, and desacralizes the romantic notion of the Revival as well as Taylor’s speech. Poor Old Woman/Ireland idealized by Literary Revival is reduced to a prostitute who readily gives her body to the conqueror of their country, thus revealing the reality of the colonized country. In fact, Joyce has kept this critical attitude toward the Revival throughout his career, by writing on the lower middle class of Dublin with the style of “scrupulous meanness”; that is, with precision.

개인 항법 시스템을 위한 센서 위치와 보폭 추정 알고리즘

김태은(Taeun Kim),이호원(Howon Lee),좌동경(Dongkyoung Chwa),홍석교(Suk-Kyo Hong) 대한전기학회 2010 전기학회논문지 Vol.59 No.11

This paper presents the sensor location and step estimation algorithm for personal navigation system (PNS). PNS has the disadvantage in that the position of the sensor must be fixed on a human body. Three-axis acceleration sensor is used to solve the disadvantage and to consider the real situation. We simplify the measurement data by using the band pass filter, witch It has the advantage in the detection of characteristic point. Through the detected characteristic points, it is possible to setup the parameter for the pattern detection. Depending on the sensor location, the parameters have the different type of noise covariance. Particularly, when the position of the sensor is changed, the impulse noise shows up. Considering the noise, we apply the recursive least square algorithm using the variable forgetting factors, which can classify the sensor location based on the estimated parameters. We performed the experiment for the verification of the proposed algorithm in the various environments. Through the experimental results, the effectiveness of the proposed method is verified.

무슬림 여학생들의 한국 유학 경험에 대한 내러티브 탐구

김태은 ( Taeun Kim ) 사단법인 아시아문화학술원 2020 인문사회 21 Vol.11 No.1

이 연구는 인도네시아에서 한국에 교환 학생으로 온 세 명의 무슬림 여학생들을 대상으로 집단 면담을 실시하여 한국 유학 전ㆍ중ㆍ후에 대한 내러티브를 확보하고 이들에 대한 이해를 높이고자 하는 데 목적을 두었다. 연구 결과 첫째, 이슬람 사회에서 여성들의 교육 기회가 확대되고 있고, 둘째, 인도네시아 내에 한국어 및 한국문화의 위상이 높아지고 있으며, 셋째, 한국어(교육)를/을 전공하는 유학생들에게는 본국에서 경험하기 어려운 실제적인 언어능력향상 프로그램이 가장 필요하다는 점을 알 수 있었다. 그러나 여전히 인도네시아 내 교육기관에 전문 인력 및 학습교재가 부족하며, 한국에서 겪는 가장 큰 어려움은 먹는 일임도 확인할 수 있었다. 이 연구는 연구 참여자가 한정적인 상황에서 동남 아시아권 무슬림 학생들만을 대상으로 하였으므로 차후에는 아랍권 무슬림 학생들과의 비교 연구도 해 볼 필요가 있다. This study aims to increase understanding of three Muslim female students, who came to Korea from Indonesia as exchange students, by interviewing them as a group to acquire their narratives on their experiences before and after studying, and while staying in Korea. The study found that women’s educational opportunities in Islamic society are expanding. Secondly, Korean language and cultural status are increasing in Indonesia, and third, students majoring in Korean language need a practical language skills improvement program that is difficult to experience in their home country. The study also confirmed that there is still a shortage of professionals and study materials in Indonesian schools, and eating foods is the biggest difficulty in Korea. Since the study only targeted Muslim students from Southeast Asia under limited circumstances, it is also necessary to conduct a comparative study with Muslim students from the Arab regions in the future.