복합하중을 받는 샌드위치 시편의 응력분포에 미치는 시편 형상의 영향

박수경(Su-Kyeong Park),홍성태(Sung-Tae Hong) 대한기계학회 2010 大韓機械學會論文集A Vol.34 No.11

복합하중 하에서의 샌드위치 시편내의 응력분포에 시편의 형상과 하중조건이 미치는 영향을 수치해석을 통하여 고찰하였다. 상용 유한요소해석 프로그램인 NASTRAN 을 사용하여 세 종류의 형상계수를 가지는 시편들에 대하여 평면변형률, 2 차원 해석을 수행하였으며, 각각의 시편에 대하여 각각 다른 복합변위각을 가지는 네 종류의 복합변위를 적용하였다. 수치해석의 결과는 복합변위각이, 즉 전단변위의 수직변위에 대한 상대적인 크기가, 응력 불균일분포영역의 크기에 미치는 영향이 전단응력과 폰 미세스(von Mises)응력의 경우에만 나타나고 수직응력의 경우에는 나타나지 않음을 보여준다. 또한 복합변위각이 증가함에 따라 전단응력의 불균일분포영역의 크기는 감소함에 비해서 폰 미세스 응력의 불균일분포영역의 크기는 증가한다. 추가로, 형상계수가 증가함에 따라, 즉, 시편의 길이의 높이에 대한 상대적 크기가 커질수록, 복합변위 하에서의 응력 불균일분포영역의 크기는 현격하게 감소한다. The effects of specimen geometry and loading conditions on the stress distribution in a sandwich specimen under combined loads are investigated by elastic finite element analysis. A commercial software NASTRAN is used in plain-strain two-dimensional finite element analysis of sandwich specimens; the analysis was performed for three different specimen shape factors and four different combined displacement conditions. The results of computational analysis suggest that the effect of the combined displacement angle, which is defined as the ratio of the shear displacement to the normal displacement, on the size of the non-homogeneous stress distribution is observed only in the case of the shear stress and von Mises stress. Also as the combined displacement angle increases, the size of the nonhomogeneous stress distribution decreases in the case of the shear stress and increases in the case of the von Mises stress. In addition, as the specimen shape factor, which is defined as the ratio of the specimen length to the height, increases, the size of the non-homogeneous stress distribution under combined displacement conditions decreases significantly.

지질구조에 대한 모델링기반 학습에서 나타나는 논증패턴과 정신모형 수준에 대한 분석

박수경 ( Su Kyeong Park ) 한국과학교육학회 2015 한국과학교육학회지 Vol.35 No.5

본 연구에서는 지질구조에 대한 모델링기반 학습 프로그램을 개발하고 모델링기반 학습에서 나타나는 논증패턴과 학생들의 정신모형 수준과의 관계를 밝히고자 하였다. 고등학교 2학년 126명을 대상으로 대륙이동설, 해령, 변환단층, 단층의 특징에 대하여 4회의 모델링기반 학습을 실시하였다. 연구대상 중에서 2개 학급은 실험집단으로 모델링기반 학습을 실시하였고 나머지 2개 학급은 비교집단으로 교사중심 설명식 수업을 실시하였다. 모델링기반 학습 후 실험집단과 비교집단의 사후 성취도와 학생들의 정신모형 분포를 정량적으로 비교하였다. 실험집단 중 5개 조의 논증활동을 녹음 전사한 자료에 대하여 본 연구에서 설정한 분석틀을 근거로 정성적으로 분석하였다. 본 연구의 분석틀은 TAP의 5가지 요소와 학생들의 대안개념이 포함되는 요소 5가지 등 총 10가지의 코딩 요소로 구성하였다. 정신모형 유형을 조사한 결과, 실험집단에서 단면 인과모형과 입체형 모형의 비율이 높게 나타난 반면, 비교집단에서는 2차원 모형과 단면 단순모형의 비중이 높게 나타났다. 논증유형을 분석한 결과, 주장의 빈도가 높을수록 논증활동이 성공적으로 이루어졌고 정신모형의 수준이 높게 나타났다. 반박이 제기된 경우, 만든 모형을 다시 관찰하여 자료를 수정하고, 이에 따라 주장을 다시 전개하였다. 이로써 모델링기반 학습에서 모형이 학생들의 논증 과정에 긍정적으로 작용함을 확인할 수 있었다. This study aims to develop a modeling-based learning program about geologic structures and to reveal the relationship between the argumentation patterns and levels of students`` mental models. Participants included 126 second grade high school students in four sessions of modeling-based learning regarding continental drift, oceanic ridges, transform faults, and characteristics of faults. A modeling-based learning program was implemented in two classes of the experimental group, and teacher-centered traditional classes were carried out for the other students in the comparison group. Science achievement scores and the distribution of students`` mental models in experimental and comparison groups were quantitatively compared. The video-taped transcripts of five teams’ argumentation were qualitatively analyzed based on the analytic framework developed in the study. The analytic framework for coding students’ argumentation in the modeling-based learning was composed of five components of TAP and the corresponding components containing alternative concepts. The results suggest that the frequencies of causal two-dimensional model and cubic model were high in the experimental group, while the frequencies of simple two-dimensional model and simple cross sectional model were high in the comparison group. The higher the frequency of claims, an argumentation pattern was proven successful, and the level of mental model was higher. After the rebuttal was suggested, students observed the model again and claimed again according to new data. Therefore, the model could be confirmed as having a positive impact on students`` argumentation process.

서울과 상해 소형아파트의 평면구성 비교 연구

박수경(Park, Su kyeong) 한국실내디자인학회 2014 한국실내디자인학회논문집 Vol.23 No.3

Dwelling connotes characteristics like social and cultural and technical climatic conditions, lifestyles and demands of regions, and especially, apartment, as one of dwelling types, shows various aspects of modern society. With the economic development centering on large cities, apartments have been established as universal housing forms in Seoul and Shanghai. The deepening of economic development in cities has increased small households consisting of one or two persons by affecting the population and household structure, and they’ve become information consumer groups. This has also influenced the size of apartment and increased the demand for small-sized housing. If the floor area is small, it is possible to use space widely according to the plan composition, so there is a need for floor planning to understand natural environment, physical environment and residents. This study compared and analyzed plan compositions of small-sized apartments which have been parceled out for the recent three years in Seoul and Shanghai. This study aims to understand housing cultures and users in the two countries depending on natural environments, living habits and spatial functions by analyzing common points and differences of public spaces like living room, dining room and kitchen, and private spaces like bedroom which have absolute effects on room arrangement and traffic line. The study results are as follows. From the perspective of natural environments, in Seoul, two-sided open cross-ventilation structure where is favorable to lighting and ventilation, occupied the biggest proportion of public space, while in Shanghai, most public spaces had lighting and ventilation structures through windows in each room. In Seoul, 3R type occupied the largest proportion of private space(87.7%), and privacy was maintained and space scale was adjusted using spaces with diverse functions such as bathroom in the couple bedroom, dress room and powder room and variable walls. But 2R type occupied the largest proportion of private space(60.2%) in Shanghai, and they emphasized private space and privacy of each room depending on major living habits. In conclusion, this study for comparing and analyzing common points and differences of small-sized apartment plan compositions in Seoul and Shanghai will provide proper guidelines for small-sized apartments to be built in Seoul and Shanghai in the future, if strong points and weak points of plan compositions in the two countries will be additionally analyzed and remedied.

2012 휠체어컬링 세계선수권대회에 참가한 휠체어컬링 국가대표 4개 팀의 경기내용 분석

박수경 ( Soo Gyung Park ),황봉경 ( Bong Kyeong Hwang ),이현수 ( Hyun Su Lee ),윤석민 ( Seok Min Yun ) 한국특수체육학회 2013 한국특수체육학회지 Vol.21 No.2

본 연구의 목적은 휠체어컬링의 경기내용을 분석하기 위해 2012년 휠체어컬링 세계선수권대회에 참여한 각국의 휠체어컬링 국가대표 10개 팀 중 상위 4개(러시아, 한국, 중국, 슬로바키아)팀의 경기를 비디오로 촬영한 후 전문가 3인이 평가자간 일치도(inter-rater agreement) 방법을 이용하여 분석하였다. 자료분석은 SPSS 18.0 Program을 이용하여 빈도분석을 하였으며, 그에 따른 결과는 다음과 같다. 첫째, 엔드에 따른 작전 비교 분석 결과, 1엔드에서는 테이크 성 작전, 2엔드에서 7엔드 까지는 드로우 성 작전, 8엔드에서는 테이크 성 작전이 많이 사용한 것으로 나타났다. 둘째, 포지션에 따른 작전 비교 분석 결과, 리드(lead)의 경우 드로우 성 작성, 세컨드(second)와 서드(third), 스킵(skip)의 경우 테이크 성 작전을 많이 사용한 것으로 나타났다. 셋째, 선공, 후공에 따른 작전 비교 분석 결과 선공의 경우 드로우 성 작전, 후공의 경우 테이크 성 작전을 많이 사용한 것으로 나타났다. 넷째, 전반, 후반에 따른 작전 비교 분석 결과, 전반과 후반은 드로우성 작전과 테이트성 작전을 상황에 맞게 사용하여 유사하게 나타났다. 따라서 엔드마다의 점수 차와 선공 또는 후공, 엔드의 시점 등을 고려하여 작전을 구상해야 할 것이며, 이를 위해서는 여러 상황에 대비할 수 있는 투구 능력을 향상시켜야 할 것이다. The purpose of this study was to analyze the play content of wheelchair curling games of the top 4 teams (Russia, Korea, China, and Slovakia) of the 10 national teams of the countries which participated in the 2012 Wheelchair Curling World Championship Games, and in order to achieve this, these games were videoed and three specialists analyzed them using the inter-rater agreement method. As the data analysis, the frequency analysis was conducted using SPSS 18.0 program, and the results of analysis are as follows. First, the results of analyzing the strategies according to the ends showed that in the 1st end, take-type strategies were mostly used, and from the 2nd end to the 7th end, draw-type strategies were mostly used, and in the 8th end, take-type strategies were mostly used. Second, the results of analyzing the strategies according to positions showed that in the case of lead, draw-type strategies were mostly used, and in the second, third, and skip, take-type strategies were mostly used. Third, the results of analyzing the strategies according to initial shots or later shots showed that in the case of initial shots, draw-type strategies were mostly used and in the case of later shots, take-type strategies were mostly used. Fourth, the results of analyzing the strategies according to the first half or the second half showed that in the first half and in the second half, both draw-type strategies and take-type strategies fitting the situations were used with similar frequency. Accordingly, the strategies should be used in consideration of differences in scores at each end, the time of initial shots and later shots, and to achieve this, shooting capabilities to cope with various circumstances should be enhanced.

누리과정 교사용 지도서의 음악 관련 활동 분석

곽경화 ( Kyeong Hwa Kwak ),김지운 ( Ji Woon Kim ),박수경 ( Su Kyoung Park ) 한국유아교육학회 2013 유아교육연구 Vol.33 No.3

본 연구의 목적은 누리과정 3,4,5세 교사용 지도서의 213개 음악 관련 활동을 분석하는 것이다. 이를 위해 각 활동의 누리과정 관련요소를 분석하고 음악 관련 활동 목표 및 내용에 나타난 음악적 개념과 음악적 태도, 음악의 활동 유형을 분석하였다. 또한 음악에 사용된 곡의 형태(장르, 음역, 박자, 조성, 형식)와 활동 자료를 분석하였다. 분석 결과 첫째, 누리과정 관련요소는 예술경험 영역의 내용범주 중 예술적 표현하기의 내용인 음악으로 표현하기가 가장 많은 것으로 나타났다. 둘째, 음악 관련 활동의 목표에 나타난 음악적 개념은 진술되지 않거나 리듬이 제시된 경우가 많았고 음악적 태도는 창의적 표현과정 즐기기, 음악의 활동 유형은 노래 부르기가 가장 많은 것으로 나타났다. 셋째, 음악 관련 활동 내용에 나타난 음악적 개념은 진술되지 않거나 리듬이 제시된 경우가 많았고 음악적 태도는 창의적 표현과정 즐기기, 음악의 활동 유형은 노래 부르기가 가장 많이 제시된 것으로 나타났다. 곡의 형태 분석 결과 음악의 장르에서는 한국음악, 창작동요가 가장 많았고 음역은 8도(c1-c2)가 가장 많은 것으로 나타났다. 박자에서는 홑박자 중 4/4박자가 가장 많이 사용되었고 조성에서는 장조 중 다장 조가 가장 많이 나타났으며 형식에서는 한도막 형식(8마디)이 가장 많았고 그림·사진·동화와 PPT를 활용한 가사판의 순으로 나타났다. 본 연구의 결과를 기초로 보다 나은 유아 음악교육의 실현을 위한 교육 방향을 설정하는데 기초 자료로 활용하고자 한다. This research analyzes music-related activities for three-, four- and five-year-old children in the ``Nuri curriculum teacher guidebooks``. To this end, the research analyzes musical concepts, musical attitude, types of musical behaviors and elements as they appear in the objectives and contents of curriculum`s music-related activities. In addition, musical forms in instructional media such as genre, range and type are analyzed. The target of this study is 213 music-related activities in Nuri curriculum guidebooks for each age group. The result are as follows. With regard to the objectives for the music-related activities, rhythm is presented the most in the musical concept. For the musical attitude, having an interest in music is cited the most, and singing songs appears most often in musical behavior. Similarly, when it comes to the contents of music-related activities, rhythm appear often in the musical concepts. Enjoying the process of creative expression is frequently applied for musical attitude and singing songs for musical behavior. When musical forms were analyzed, children`s songs account for the biggest part of the musical genres of Korean music. In addition, C8(C-C′) of the range is most frequent, and 8 and 16 measures appear most often in terms of type. Lastly, sound source are used most as the activity materials, and with regard to the elements related to Nuri curriculum, artistic expression achieved through music is the most frequent among the content category of artistic experiences.

모바일 애플리케이션 이용의도에 관한 실증적 연구

김성수(Seong-Su Kim),한경석(Kyeong-Seok Han),김병수(Byoung-Soo Kim),박수경(Su-Kyung Park),안상근(Sang-Keun Ahn) 한국정보기술학회 2011 한국정보기술학회논문지 Vol.9 No.8

The purpose of this research is to figure out the usage pattern of smartphone application users and to establish the method for invigorating application marketing through the analysis of users’ tendency. For this reason, I selected Technology Acceptance Model (TAM) as research model and surveyed 358 mobile application users. The outcome shows that mobile applications with great entertainment, reasonable price and attractive design let consumers have positive attitude towards those applications and influence their future usage. Along with mobility and everlasting connectivity of smartphone, entertainment factor of applications becomes more important which influences not only on accessibility, but also on general attitude towards applications. Thus, for an effective application marketing, it is essential to develop multimedia contents ?like music and movies? and interworking service with Social Networking Service (SNS).

여성일자리 지원기관 사업효과성 분석 및 개선방안 연구

신하영(Shin, Ha-Young),박수경(Park, Su-Kyeong) 서울시 여성가족재단 2017 서울시 여성가족재단 연구사업보고서 Vol.- No.-

청년여성 고용지원 서비스체계 구축방안 마련

신하영(Shin, Ha-Young),박수경(Park, Su-Kyeong) 서울시 여성가족재단 2017 서울시 여성가족재단 연구사업보고서 Vol.- No.-

벤지딘 염료공장 노동자들의 혈뇨

손미아,백도명,최정근,박수경,박정순,오세민,박정선,박동욱,Son, Mi-A.,Paek, Do-Myung,Choi, Jung-Kun,Park, Su-Kyeong,Park, Jung-Soon,Oh, Se-Min,Park, Jung-Sun,Park, Dong-Ook 대한예방의학회 1995 Journal of Preventive Medicine and Public Health Vol.28 No.1

Benzidine Industry in Korea has started after Japan has banned its production in early 1970's, and it has been in operation in Korea for over 20 years. However, it is not known yet whether any bladder cancer has developed from benzidine exposure. This study was done to screen benzidine-exposed workers for bladder cancer, and to examine the feasibility of employing screening test at the workplace. All the workplaces that manufacture or use benzidine for more than 20 years in Korea have been covered in this study, and they include 2 benzidine manufacturing factories, 5 benzidine using factories, as well as 2 benzidine free factories as an outside control. In total, 516 workers were screened with urine stick test and urine cytology test for the evidence of hematuria and abnormal urothelial cells. Each worker was also asked about risk factors and symptoms of bladder cancer including past medical history, smoking, medication and occupational history Benzidine in the air was measured by personal and area sampling. Out of 516 screened workers, 84(16.3%) workers showed positive hematuria in urine stick test, and 7(1.4%) workers showed degenerative cells in urine cytology tests. Those workers with abnormal urine test results who have been exposed to benzidine fo more than 10 years were further screened, and, in total, 23 workers were examined with intra-venous pyelography and cystoscopy. None of those screened had any evidence of bladder cancer When workers with only past hematuria history were included in the positive hematuria group, 96(18.5%) had positive hematuria. On the multiple logistic regression analysis, positive hematuria was significantly associated with benzidine exposure, history of other occupations with elevated bladder cancer risk, pyuria and glycosuria. The association got stronger as direct benzidine exposure was accounted through individual task analysis, and as exposure duration was accounted with tenure analysis. For those with benzidine exposure with more than 10 years of tenure, the odds of having positive hematuria was elevated 2.14(95%C.I is 1.08 to 4.25) times more than for those without exposure. Even though bladder cancer was not detected for several limitations including short observation period, majority of studied workers with short latency, healthy worker effect, and low sensitivity of single screening test in a cross-sectional study, the study results suggest that hematuria screening is a feasible and very useful test for bladder cancer screening among benzidine exposed workers.

아산시 관광자원화를 위한 신정호 자연문화복합공간개발 디자인 전략 연구

우희정(Woo Hee-Jung),박수경(Park Su-Kyeong),김원택(Kim Won-Taik) 한국디자인학회 2008 한국디자인학회 학술발표대회 논문집 Vol.- No.-