달 탐사를 위한 달 표면에서의 무선통신 환경 분석

이용민(Yong-Min Lee),이병선(Byong-Sun Lee),안재영(Jae-Young Ahn) 대한전자공학회 2014 전자공학회논문지 Vol.51 No.10

본 논문에서는 달 표면에서의 무선통신에 영향을 미칠 수 있는 달의 내, 외부 요인으로서 온도, 우주방사선, 먼지입자 등에 의한 무선통신 환경 및 통신 임무장비에 대한 영향을 분석하였으며, 또 다른 영향 요인으로서 유성충돌, 달에서의 지진활동, 달의 지자계 분포 등에 대해서도 고찰하였다. 본 논문에서 제시된 결과는 향후 국내 달 탐사 프로젝트에서 달에서의 무선통신 시스템 설계에 효과적으로 활용할 수 있는 기초적인 자료로 활용될 것이다. Evaluation of the possible or probable effects of environmental conditions which are temperature, radiation, dust as well as other possibilities in terms of meteoroids, seismicity, and no global magnetic field has been carried out for wireless communications on the lunar surface in this paper. The results considered in this paper can be utilized as a basic information on making efficient use of the design for wireless communications system in Korean lunar exploration project.

통신방송위성 Ku 대역 탑재체 수동 상호혼변조왜곡 분석

이용민(Yong Min Lee),김현국(Hyoun Kuk Kim),정태진(Tae Jin Chung),이성팔(Seong Pal Lee),박계영(Ke Young Park) 대한전자공학회 2002 대한전자공학회 학술대회 Vol.2002 No.6

정지궤도 공공복합통신위성 SBAS 탑재체 중계기 군지연 안정도 성능에 관한 연구

이용민(Yong-Min Lee),엄순영(Soon-Young Eom),신천식(Cheon-Sig Sin) 한국통신학회 2023 한국통신학회 학술대회논문집 Vol.2023 No.11

노년층의 생애주거 경험을 통해 본 노후주거관 형성과정

권오정,이용민,하해화,김진영,염혜실,Kwon, Oh-Jung,Lee, Yong-Min,Ha, Hae-Hwa,Kim, Jin-Young,Yeom, Hye-Shil 한국주거학회 2013 한국주거학회 논문집 Vol.24 No.3

The purpose of this study is to explore the formation process of housing notion for later life of the elderly which is based on one's lifetime housing experiences. Qualitative data was collected through in-depth interviews with 6 highincome, highly educated aged women, who could select their housing and move voluntarily in old age and explain their housing experiences logically. The findings of this study showed that housing notion for later life was formed through a complex process of individual personality, lifestyle, housing experiences, housing values, housing market and period background as well as socio-demographic characteristics. This qualitative study has a significance as a holistic approach to reveal the lifelong experience of elderly individuals which had not been to deal in the quantitative research of housing for the elderly in the meantime.

유치원 교사의 정서노동과 직무만족도의 관계에서 교사탄력성의 조절효과

이병임 ( Lee Byung Lim ),이용민 ( Lee Young Min ),오대연 ( O Dae Youn ) 서울敎育大學校 初等敎育硏究所 2017 한국초등교육 Vol.28 No.2

본 연구는 유아교사의 정서노동, 교사탄력성과 직무만족도의 관계를 살펴보고 교사탄력성의 조절효과를 알아보는데 그 목적이 있다. 이를 위해 강원도 지역에 소재한 유치원에 근무하는 유아교사 152명을 대상으로 질문지를 이용하여 자료를 수집하였다. 수집된 자료는 유아교사의 일반적 특성에 따른 변인들의 차이를 알아보기 위해 일원변량을 실시하였으며, 각 변인들 간의 관계를 상관분석을 통해 살펴보았고, 마지막으로 교사탄력성의 조절효과를 살펴보기 위해 위계적 회귀분석(Hierarchical Analysis)을 활용하였다. 연구 결과를 요약하면 첫째, 유아교사의 교사 탄력성은 학력에 따라 유의한 차이가 있음이 나타났다. 둘째, 정서노동은 직무만족도와 정적 상관을 보였다. 정서노동의 하위요인인 자연적 행동과 내면적 행동도 직무만족도와 유의한 정적 상관을 나타냈으나, 표면적 행동은 직무만족도와 유의한 상관을 보이지 않았다. 셋째, 정서노동과 직무만족도 하위요인의 관계에서 교사탄력성의 조절효과를 살펴본 결과, 직무만족도의 하위 요인 중 동료관계, 원장관계, 근무환경에서 교사탄력성의 조절효과가 유의한 것으로 나타났다. 본 연구는 유아교사들의 정서노동의 문제는 직무만족도에 영향을 줄 수 있음을 알 수 있었으며, 특히 교사탄력성은 정서노동에 대한 보호요인으로 작용할 수 있음을 밝힌 점에 의의가 있다. The purpose of this study is to examine the relationships between kindergarten teachers` emotional labor, resilience, and job satisfaction, and analyze the mediating effect of resilience. The subjects were 152 kindergarten teachers in Gangwon-do. The data were analyzed by F-test, Scheffe for a post hoc test, simple comparison, ad hierarchical regression analyses by using SPSS 21.0. The study results can be summarized as below. First, as a result of examining the differences according to certificate, there were differences in teachers` resilience. Second as a result of conducting correlation analyses to grasp the relationships between kindergarten teachers` emotional labor and job satisfaction, emotional labor and job satisfaction had a (+) correlation. However the surface acting, one of the emotional labor`s sub-factors, had no correlation with job satisfaction. Third as a result of examining the mediating effect of resilience in the relationship between emotional labor and job satisfaction, it had a mediating effect in the satisfaction of colleague relation, director relation, working environment among the sub-factors of job satisfaction. Especially, this study found out that resilience not only has a direct effect on kindergarten teachers` job satisfaction but also plays the role of a protective factor for emotional labor.

슬릿구조를 포함한 반사형 가변위상변환기의 설계

최영철(Young-Chul Choi),이용민(Young-Min Lee),황규일(Kyu-Il Hwnag),나극환(Keuk-Hwan Ra) 한국통신학회 1999 한국통신학회 학술대회논문집 Vol.1999 No.7

SBAS 탑재체 시스템의 C-to-L 대역 채널 성능 분석

엄순영(Soon Young Eom),이용민(Yong Min Lee),신천식(Cheon Sig Sin) 한국통신학회 2023 한국통신학회 학술대회논문집 Vol.2023 No.6

‘CLD교육 학습성과 평가체계’개발 연구

송민영(Song Min young),이용민(Lee Yong min),김병국(Kim Byung kuk),최현수(Choi Hyun soo) 학습자중심교과교육학회 2017 학습자중심교과교육연구 Vol.17 No.2

본 연구에서는 K대학교의 CLD교수-학습모형을 적용한 역량기반 교육의 효과를 입증해낸다는 측면에서 학습자의 변화를 확인할 수 있는 ‘학습성과’를 체계적으로 평가하기 위한 평가체계를 개발하였다. 연구 결과 개발된 학습성과 평가체계는 학생의 역량을 전공역량과 수행역량으로 구분하고, 이를 종합적으로 평가하되 K대학교에서 실제 활용하고 있거나 향후 활용 가능한 평가요소들을 활용할 수 있도록 한 것이 특징이다. 본 연구에서 제안한 학습성과 평가체계를 통해 학생의 역량을 정량화하여 평가한다면 그 결과를 역량기반 교육의 질 관리 내실화와 지속적인 교육개선에 활용할 수 있을 것이다. 또한 본 연구에서 제안한 학습성과 평가체계에 포함된 평가 요소들은 타 대학에서도 충분히 활용할 수 있으므로 최근 점차 확산되고 있는 역량기반교육의 학습성과 평가에 참고가 될 것으로 기대한다. There has been a variety of efforts to develop competence-based courses and put them into practice in Korean universities. The process is intended to control their quality. As K university has developed and applied the Creative Learning by Doing (CLD) models, which are considered to actualize competence-based courses, and to cultivate interdisciplinary and creative students, it has endeavored to have an evaluation system to value the achievements of the models. This paper aims to develop an evaluation system to see systematically the change of students’ achievements and prove the courses’ effectiveness after appling the CLD education. Students’ achievements include competences both in cognitive aspects and in application. Cognitive competence can be evaluated with the students’ academic results; application competence, with the students’ behaviors and accomplishments. This study introduces four evaluation factors, such as test grades, competence evaluation, accomplishment, and extra-curricular activity and produces scores quantifiably and separately. The base data that this study used was selected in consideration of the possibility to acquire in any university, including K university. This study also suggests an application of performance-based evaluation to estimate the competence in certain majors, as well as general core competences in any academic field. Such a selection of common evaluation factors makes it possible to apply the evaluation system to the competence-based education in K university, but also can be applied to any other university environment. It is expected that this evaluation system will be referred to other evaluations of academic achievements in controlling their qualities.

간단한 지수함수를 패턴 밀도 함수로 이용한 LGP 패턴 설계

김영철,김대욱,오태식,이용민,안승준,김호섭,Kim, Young-Chul,Kim, Dae-Wook,Oh, Tae-Sik,Lee, Yong-Min,Ahn, Seung-Joon,Kim, Ho-Seob 한국광학회 2010 한국광학회지 Vol.21 No.3

전산모사를 통하여 LGP 출력 분포를 조절할 수 있는 패턴 밀도 함수를 찾고 그 효과를 조사하였다. 패턴 밀도 함수, 즉 패턴 간격은 [Pexp(-y/70)+Qexp(+y/25)]R로 조사되었다. 이 함수를 이용하여 패턴의 간격을 조절하는 방식으로 반구형 패턴이 장착된 도광판을 설계하여 도광판 출력 분포를 분석한 결과 출력 분포가 등간격 패턴에 의한 출력 분포에 비하여 확연히 개선되는 것을 확인하였다. 또한 이 함수를 피라미드 패턴에 적용하여 도광판의 출력을 조사하였는데, 반구형 패턴의 경우와 마찬가지로 출력 분포가 개선되는 것을 확인하였다. A pattern density function using simulation analysis for controlling LGP output distribution was proposed. The pattern density function was found as [Pexp(-y/70)+Qexp(+y/25)]R. We analyzed the LGP output distribution of a hemi-sphere pattern using the function and then found that its output distribution was clearly improved as compared with that of the equi-distance pattern. We found that the density function works well for the pyramid pattern case as well as.

노년층의 지역 내 계속 거주 이유에 관한 연구

권오정 ( Oh Jung Kwon ),이용민 ( Yong Min Lee ),하해화 ( Hae Hwa Ha ),김진영 ( Jin Young Kim ),염혜실 ( Hye Shil Yeom ) 대한가정학회 2014 Human Ecology Research(HER) Vol.52 No.3

This study was conducted to analyze the reasons for aging in place through an in-depth interview, which is a qualitative research method. The subjects of the study were 17 adults over the age of 60 years who preferred aging in place. Interviewees were asked questions about their experiences of past living, present living, and the future place where they want to live in and the reasons for their choice. In the in-depth interviews conducted from September 2012 to May 2013 for data collection the research participants were asked open-ended questions about their past living experiences and future living plan and were given the freedom to answer the questions in their own words. The results of the in-depth interviews revealed the following reasons for aging in place: 1) familiarity due to long-term residence, 2) strong attachment to the place and the neighbors, 3) satisfaction of present house, 4) personal stories associated with present house, 5) feeling of living in their own home, 6) convenience of the neighborhood for living, 7) caring relationship with the neighbors, 8) fear of a change of environment, and 9) resignation to the rest of their life. The findings indicated that residential types in old age need to be taken into account for both aging in place which referring to choosing to live where one has lived for years and referring to involuntarily staying where one has lived for years.