콘크리트 포장 슬래브의 변형률 측정에 관한 연구

김동호,전성일,최창식,윤병성,윤경구 江原大學校 産業技術硏究所 2002 産業技術硏究 Vol.22 No.A

The purpose of this paper is to investigate for strain measurement of concrete pavement slab at field. The early-age behaviors of concrete pavement were measured using the strain gages. From the static and dynamic wheel loading tests, the outputs from each gages were recorded. The measured data, also, was compared to those from finite element analysis. The static wheel loading tests were performed in twice, and the dynamic wheel loading tests were performed at the speed 10㎞∼50㎞. The results could be summarized as follows: To embed the strain gage accurately and stably in concrete pavement, a chair and protective box must be used. The protective box must not be affected from the outside vibrating. From the results of early-age strain measurement, it was found that the strain varied at the maximum value of 180 με. From the results of static wheel loading tests, A1, A2 and B gages generally developed a consistent tendency. When comparing the results from the measured at field and the calculated by FEM analysis, the data of A1 and B gages were similar to that from theory. The values from the field test were generally higher than that from the theory. From the results of dynamic wheel loading tests, it was known that the measured strain at field became smaller as the truck speed became faster, indicating the maximum at the range of 12∼13 με.

Controlled doping of single crystalline diluted magnetic semiconductor Ga_1-xMn_xN nanowires

Byeun, Y.K.,Han, K.S.,Choi, H.J.,Choi, S.C. Elsevier Sequoia 2007 Materials science & engineering. properties, micro Vol.452 No.-

We report on the optical and magnetic properties of single crystalline dilute magnetic semiconductor Ga<SUB>1-x</SUB>Mn<SUB>x</SUB>N nanowires. The nanowires were fabricated by chemical vapor transport process, and had diameters of <100nm and length of several μm. Controlled doping of manganese in the range of x=0.01-0.08 was successfully achieved by varying the processing conditions. X-ray diffraction and transmission electron microscopy observation showed that the nanowires are single crystalline without any secondary phases. Photoluminescence emissions of all the doped nanowires were red-shifted (2.8eV) compare to pure gallium nitride nanowires (3.3eV) at room temperature. Ferromagnetism up to room temperature was observed in GaN<SUB>1-x</SUB>Mn<SUB>x</SUB>N nanowires with x>0.04.

Synthesis and Characterization of One-Dimensional GaN Nanostructures Prepared via Halide Vapor-Phase Epitaxy

Byeun, Yun-Ki,Choi, Do-Mun,Han, Kyong-Sop,Choi, Sung-Churl The Korean Ceramic Society 2007 한국세라믹학회지 Vol.44 No.3

High-quality one-dimensional GaN nanorods and nanowires were synthesized on Ni-coated c-plan sapphire substrate using halide vapor-phase epitaxy (HVPE). Their structure and optical properties were investigated by X-ray diffraction, scanning and transmission electron microscopy, and photoluminescence techniques. Full substrate coverage of densely packed, uniform, straight and aligned one-dimensional GaN nanowires with a diameter of 80nm were grown at $700{\sim}900^{\circ}C$. The X-ray diffraction patterns, transmission electron microscopic image, and selective area electron diffraction patterns indicate that the one-dimensional GaN nanostructures are a pure single crystalline and preferentially oriented in the [001] direction. We observed high optical quality of GaN nanowires by photoluminescence analysis.

The Growth of One-Dimensional Single-Crystalline AlN Nanostructures by HVPE and Their Field Emission Properties

Byeun, Yun-Ki,Telle, Rainer,Jung, Se-Hyuk,Choi, Sung-Churl,Hwang, Hak-In WILEY-VCH Verlag 2010 CHEMICAL VAPOR DEPOSITION -WEINHEIM- Vol.16 No.1

<P>Single-crystalline AlN nanostructures, such as thin films, nanoneedles, nanocolumns, and nanowires, depending on the controlled gas-flow ratio, are synthesized by halide vapor-phase epitaxy (HVPE). In comparison with a typical vapor/liquid/solid (VLS) mechanism for the growth of nanowires, well-aligned AlN nanorod arrays with diameters below 20 nm are grown on a catalyst-free Si substrate though a vapor/solid (VS) mechanism. Their structural and optical properties are measured by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and photoluminescence (PL). In particular, AlN nanorods exhibit an excellent field emission property with a low turn-on field of 2.25 V µm<SUP>−1</SUP>. The field enhancement factor is estimated to be about 784 due to well-aligned, needle-shaped, AlN nanorods.</P> <B>Graphic Abstract</B> <P>Halide vapor-phase epitaxy system to grow 1-dimensional single crystalline AlN nanostructures has been developed in this work. The needle shaped AlN nanorod array exhibit on excellent field emission property with a low turn-on field of 2.25 V/µm. This technique may provide great advances in optoelectronics and field emission nanodevices.</P>

학교안전 강화방안에 관한 연구

변지희(Byeun Ji Hee),최응렬(Choi Eung Ryul) 한국공안행정학회 2014 한국공안행정학회보 Vol.23 No.3

최근 세월호 사고 이후 학교폭력과 같은 지엽적인 학교안전에 대한 접근방식에서 학교 내ㆍ외부 범죄행위에서부터 위기 및 재난대응에 이르기까지 전반적인 학교안전에 대한 관심과 중요성이 부각되고 있다. 이에 이 연구는 한국의 학교안전 강화를 위한 실효적 대안을 마련하기 위하여 미국 캘리포니아주의 학교안전 접근전략을 사례연구하였다. 연구내용은 캘리포니아주에서 운영 중인 "학교안전계획" 및 "학교안전전략"에 대한 분석과 학교안전을 위한 지역공동체와의 협력방안 중 경찰의 역할을 분석하였다. 학교안전계획은 학교안전 향상과 학생들의 학업성적 및 교직원의 직무만족 향상, 국가비용 절약과 지역공동체 참여 유발을 통한 서비스 확대 등을 도모할 수 있다는 점에서 학교안전의 성공을 가늠하는 매우 중요한 과정이다. 따라서 이 연구에서는 이러한 학교안전계획 수립을 위한 7가지 단계의 전략 과정을 분석하였다. 또한 학교안전 접근전략으로써 첫째, 사람과 프로그램에 초점을 맞추어 예방ㆍ개입ㆍ법적 장치단계에서의 학교분위기 향상 전략과 둘째, 장소에 초점을 맞추어 물리적 환경 개선을 통한 통합적 관점에서의 학교안전전략을 분석하였다. 그리고 학교안전을 위한 경찰의 개입과 역할 방향으로, 학교 내외에서 발생하는 다양한 형태의 범죄와 학교안전을 위협하는 요소들에 대응하기 위하여, 학교폭력 범죄에 한정된 경찰의 개입 범위를 확대할 필요가 있다는 점을 제시하였다. 특히, 경찰에게 "학교안전 검측 및 학교장에게 안전유지를 위한 조언 및 권고 권한 부여"를 학교전담경찰관의 기본 임무에 추가할 필요가 있으며, 범죄에서부터 재난에 이르기까지 통합적인 학교안전 강화를 위한 경찰의 적극적 역할을 제언하였다. The purpose of this study is to analyze the strengthening plan of school safety in Korea through the case study on "school safety strategy" in California, U.S.A. In recent years, we're threatened by the problems about outsider's access and violent or abusive behavior among students. To solve these problems, this study analyzed "school safety planning" and "the 7-step safe school planning process" operating in California. Above all things, school safety planning is a very important first step for school safety, because this step is a great helpful to improvement of school record, the teaching staff's job satisfaction, saving state's expenditures, promoting the neighborhood participation and school safety advancement. And the strategies of approaching for school safety in California are the improvement of school climate through prevention, intervention, legal tools focusing on human and program, and the improvement of physical environment through the things focusing on the place. So this study suggests that we adopt the school safety planning appropriate for the Korea's every school and cooperate with local community for safe schools. For cooperation of local community, Korean police especially need to perform important roles as great collaborator that is sharing information on the students, increasing the patrols around schools, providing a school equipment inspection and recommendation, and operating preventive education about school violence.

E. P. 톰슨의 알튀세르 비판의 때늦은 현재성

변상출 ( Byeun¸ Sang-chul ) 동국대학교 영어권문화연구소 2013 영어권문화연구 Vol.6 No.2

This study aims at examining the current meanings of Edward Palmer Thompson’s criticism of Louis Althusser. Althusser is a marxist philosopher who burst upon Korea in the early 1990s, the period of the crisis of Marxism through the breaking down of real socialism in Eastern Europe and Soviet Union. He was considered a key figure who could secure the transformation of Marxism from the crisis of Marxism through, for example, his key concepts such as ‘relative autonomy’, ‘overdetermination’, ‘ideological state apparatus’, ‘ideological interpellation’, ‘theoretical practice’ which played the important roles in expanding the spectrum of traditional Marxism. Thompson, however, did not embrace and even reject Althusser's concepts. He insists that the idea penetrating every Althusser's concept including ‘theoretical practice’ is the denial of a ‘subject’ as a human ‘agent’, which can be expressed in Althusser's remark on history as “the process without a subject”. For Thompson, Althusser's fatal problem comes not only from the denial of a subject, but also mainly from his theoretical reductionism where everything has resolved within the boundary of ‘theoretical practice’. In this reductionism, Thompson detects “Stalinism reduced to paradigm of theory”. He characterizes it as ‘structuralism of stasis’. In this structuralism, he continues to secure the concepts structuralism denies, such as ‘historicism’, ‘empiricism’, and ‘moralism’. Thompson insists that Althusser confines vivid human life, experience, and morals to the theoretical frameworks so that there is not a ‘blade of human aspiration’, which means the denial of a subject. In his book, The Poverty of Theory, he criticizes bitterly Althusser's exclusion logic of subject in history. In this process, he impliedly emphasizes the return of subject and the dialogue with subject, resulting in the restoration of a ‘blade of human aspiration’ withered by complicate control mechanism. It has been a half generation since the attack of New Liberalism in this country. As Postists vaguely warns, it seems that subjects of substantial discourses has disappeared. The shades of world market system is overwhelming everywhere. Despite the desperate situation, we cannot give up a ‘blade of human aspiration’. Thompson's continuous trials of reviving a subject and a ‘blade of human aspiration’ stand for his nowness in the present.

환상과 자유

변상출(Byeun Sang-Chul) 대구대학교 인문과학연구소 2010 人文科學硏究 Vol.35 No.-

[토론문] 공예와 여성, 새로운 미래의 아이콘을 담다

변광섭(BYEUN Kwang-Sub) 이화여자대학교 아시아여성학센터 2010 이화여자대학교 아시아여성학센터 학술대회자료집 Vol.2010 No.11

소년범에 대한 구금처우 대체방안 연구

변지희(Byeun Ji Hee) 경찰대학 경찰학연구편집위원회 2013 경찰학연구 Vol.13 No.1

The purpose of this study is to analyze the possibility of treatment based in community on young offender in Korea through case study on “Center for Alternative Sentencing and Employment Service” organization in America. Nowadays, Juvenile's violent crimes like murder, rape, mugger and arson and Recidivism are increasing in Korea. And juvenile crimes have recently been showing signs of ferocity, imitation of adult crime and the dropping of the age youth permit a crime. These results show that current measures and Criminal Justice System on juvenile crime in Korea were not functioning. And what's more, these results show the limit of treatment in custody. So, this study explains the limit of treatment in custody on young offender through youth protectionism, recidivism and labeling effect. To solve those problems, this study introduces “Center for Alternative Sentencing and Employment Service” organization which is highly acclaimed as organization running the CEP(Court Employment Project) program of treatment based in community in America and analyzes success factors on decrease of recidivism rates and economy in expenditures of jail or prison. So This study suggests an alternative on treatment in custody and the possibility of treatment based in community for young offender in Korea.

풍물굿의 연행원리와 미의식 연구

변영희(Byeun, Young Hee) 민족미학회 2014 민족미학 Vol.13 No.1

마을굿에서 유래한 풍물굿은 마당에서 현장에서 연행되면서 존재하는 일놀이굿의 통일체였다. 그러나 마을굿에서 비롯되어 마을구성원간의 유대와 제의로서의 공동체적 풍물굿의 현장 상황은 이미 소멸하여 거의 존재하지 않는다. 풍물굿이 현대에도 우리 삶의 유효한 예술과 삶의 양식이기 위해서는 풍물굿이 가지고 있는 음악적인 신명뿐만이 아니라 그 속에 담긴 민중의 염원과 정신, 인간과 신, 인간과 인간, 인간과 사회의 문제를 푸는 원리를 밝혀내야 한다. 본 연구는 마을굿에서 파생된 풍물굿이 어떠한 양상으로 형성되고 발전되어 왔는지 ‘공연행위’(연행행위)의 측면에 중심을 두고 살펴보고자 한다. 풍물굿의 여러요소들이 현장 연행 속에 어떤 식으로 표현되며 그 연행의 원리는 무엇이며, 풍물굿에 실현된 한국인의 미의식은 무엇인지를 탐구해 볼 것이다. 본 연구에서는 우도농악을 중심으로 풍물굿의 연행원리를 4가지 측면에서 살펴보았다. 첫째 일상공간의 영성적 연행공간화. 일상의 생활공간이 신성한 제의적 공간으로 탈바꿈하며 새로운 공간으로써 의미를 생성하게 되는 과정을 보여준다. 둘째 시가악무극일체(詩歌樂舞劇 一體)의 총체연행성에서는 문화복합체로서 풍물굿의 특성을 보여준다. 셋째 ‘마당’과 ‘판’의 엮음구조에서는 풍물굿 각각의 ‘굿거리’ 마당과 전체 ‘굿판’과의 엮음구조를 드러내며 넷째 장단구성의 원리에서는 풍물굿의 음악성을 장단구조의 특성에 찾고 있다. 풍물굿의 연행 속에는 개인적이고 일상적 삶을 벗어나, 나와 나를 둘러싸고 있는 우주를 일치시키며 공동체의 이상을 실현하려는 모습을 볼 수 있다. 이러한 바탕에는 일체를 전체성 안에서 조화 통일하려는 천지인(天地人) 합일(合一)의 생명론적 미의식을 발견하게 된다. Pungmulgut is one of Korean traditional culture which has been performed in rural villages, towns, and schools. It has been developed as people’s art of the community since our ancestors took roots in this land. Pungmulgut originated from village ritual still has been performed unifying labor and play. This study is to reveal Korean people’s aesthetic consciousness by discovering values and principles inherit in Pungmulgut paying attention to the unifying characteristics of Pungmulgut which blending experience of creating and of enjoying. Especially, with the concept ‘performance’ discussed in Western aesthetics, performance principles of Pungmulgut have been surveyed. In terms of unifying labor and play, Pungmulgutt now has various kinds of performance style which are having been done unlike the past. In summary, there are four performance principles in Pungmulgut. First is to replace from daily life space to spiritual performing area. Second is to weave lyric, beat, song, dance, and narrative all together. Third is to enlarge performance space to the audience seat. And last is constituting principle of Korean traditional drum beat. Pungmulgut is based on the shamanism linking among heaven, earth, and man and it supplies performance principles for Pungmulgut. Aesthetic experience for harmoniousness and co-existence can be possible in Pungmulgut through this unification.