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대인외상경험과 대학생활적응의 관계에서 발달자산의 매개효과
김훈희 ( Hunhee Kim ),황영신 ( Youngshin Hwang ),손경란 ( Gyeongran Son ) 아시아문화학술원 2019 인문사회 21 Vol.10 No.3
본 연구의 목적은 대학생들의 대인외상경험과 대학생활적응의 관계에서 발달자산의 매개효과를 살펴보는 것이다. 대학교 1학년부터 4학년 학생들 516명의 설문조사 자료를 분석하였다. 자료의 분석은 정규분포, 상관관계 및 구조방정식 모형을 검증하였다. 매개효과의 유의성 검증은 펜텀변수에 의한 부스트래핑으로 이루어졌다. 첫째, 대학생들의 대인외상경험과 대학생활적응에서 외적 발달자산과 내적 발달자산은 완전매개효과가 있었다. 외적 발달자산과 내적 발달자산이 개별적으로 영향을 미치는 완전매개모형(1)이 외적발달자산이 내적 발달자산을 통해 이중매개하는 완전매개모형(2) 보다 적합하였다. 둘째, 대인외상경험과 대학생활적응의 관계에서 발달자산의 매개효과는 통계적으로 유의하게 나타났다. 이는 대인외상경험이 대학생활적응에 미칠 수 있는 부정적 영향을 발달자산이 완충작용을 할 수 있음을 나타내었다. 따라서 대인외상경험이 있는 대학생들의 대학생활적응을 돕기 위해 발달자산 증진 프로그램의 개발 및 적용이 필요함을 시사 하였다. The purpose of this study is to analysis mediating effect of developmental assets on the relation between interpersonal traumatic experience and adjustment to college life. Questionnaire data from 516 college students. Data analysis was conducted to verify the normal distribution, correlation, and structural equation model. The significance test of the mediation effect was made by bootstrapping by the phantom variable. First, external assets and internal assets were complete mediation effect in interpersonal trauma experience and college life adjustment of college students. The complete mediation model (1) is more appropriate than the complete mediation model (2) in which the external assets and the internal assets individually mediate through the internal assets. Second, the mediation effects of developmental assets were statistically significant in the relationship between interpersonal trauma experience and college life adjustment. This indicates that developmental assets can buffer the adverse impact of interpersonal trauma experience on college adjustment. Therefore, it is necessary to development and apply the developmental assets increase program to help college students with interpersonal trauma experience adapt to college adjustment.
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언어네트워크 분석방법을 활용한 국내 ‘예비교사 교육’ 연구동향 분석
김훈희 ( Hunhee Kim ),권충훈 ( Choonghoon Kwon ) 아시아문화학술원 2018 인문사회 21 Vol.9 No.4
본 연구의 목적은 ‘예비교사 교육’을 주제어로 2013년부터 2017년까지 한국연구재단 등재 학술지 및 등재 후보 학술지에 게재된 연구논문들을 언어네트워크 분석방법을 활용하여 연구동향을 분석하는 것이다. 연구대상은 5개년 동안 총 1,106 편의 연구논문 제목들이다. 연구방법은 연구제목의 중심 핵심어 추출을 위해 박한우와 Loet Leydesdorff(2004)가 개발한 한국어 텍스트 분석 소프트웨어인 KrKwic(Korean Key Words in Context) 프로그램을 사용하였다. 주요 핵심어의 언어네트워크 분석 프로그램은 Analytic Technology사의 UCINET6 프로그램(ver.6.645)과 NetDraw 프로그램(ver. 2.161)이다. 연구결과는 다음과 같다. 첫째, 주요 핵심어 추출 결과는 예비유아교사(425), 예비교사(156), 예비초등교사(152), 경험(123), 교육실습(106)의 순으로 상위 출현빈도로 분석되었다. 둘째, 주요 핵심어들 간의 언어네트워크 밀도는 0.592이며, 핵심어 평균 연결정도는 23.1개 정도로 나타났다. 그리고 주요 핵심어의 언어네트워크 특성 분석을 위해 3종의 중심성(연결정도, 근접, 매개 중심성)값을 확인하고, 그 결과를 언어네트워크 지도로 제시하였다. 향후 ‘예비교사 교육’에 관한 연구동향을 학교급 별로 분석을 함으로써 교사교육 프로그램 구안에 기여를 하고자 한다. The purpose of this study is to investigate research trends in the field of preliminary teacher education by analyzing the papers published in KCI registered journals and journals for listing. The subjects of the study were 1,106 articles from 2013 to 2017 (recently 5 years). In order to extract the key words in the title of the study, KrKwic (Korean Key Words in Context), Korean text analysis software developed and distributed by Park, Han-woo and Loet Leydesdorff (2004) Program. The semantic network analysis program for major key words is the UCINET6 program (ver. 6.645) and the NetDraw program (ver.2.161). The results of the study are as follows. First, major key word extraction results were obtained from preliminary kindergarten teacher (425), preliminary (156), preliminary elementary teacher (152), experience (123), teaching practicum (106). Second, the density of semantic network among major key words is 0.592, and the average degree of major key words is about 23. In a dense network, the connections between the key words are activated and a wide variety of topics are covered. In order to analyze and present the characteristics of semantic networks of major key words, three kinds of centrality (degree, closeness, betweenness) were verified and the results were presented as a semantic network map. In the future, by analyzing research trends of preliminary teacher education based on education levels, this paper will contribute to design and develop teacher education program.
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전문대학생의 국어 기초학습능력 향상 프로그램의 운영 효과
김훈희 ( Hunhee Kim ) 사단법인 아시아문화학술원 2020 인문사회 21 Vol.11 No.5
본 연구의 목적은 전문대학생들의 국어 기초학습능력 향상을 위한 프로그램 운영 후, 학업적 자기효능감과 학업적 실패내성에 대한 전·후 차이를 파악하여 프로그램의 효과를 검증하는 것이다. 연구대상은 J대학 신입생 전체 학생들에게 국어 진단평가를 실시한 후 성적하위자들 중 프로그램에 참여한 48명을 최종 실험군 대상자로 선정하였다. 자료분석은 SPSS 22.0을 이용하였다. 연구결과, 자기효능감은 사전조사 시 실험군(85.81)과 대조군(84.17)에 차이가 없었지만, 사후조사에서는 실험군(94.67)과 대조군(84.62) 사이에 유의한 차이가 있었다. 실패내성은 사전조사 시 실험군(85.50)과 대조군(81.06)에 차이가 없었지만, 사후조사에서는 실험군(93.42)과 대조군(84.35) 사이에 유의한 차이가 있었다. 결론적으로, 기초학습능력 향상 프로그램은 학생들의 학업적 자기효능감과 학업적 실패내성을 높여 학교생활적응에 도움을 준다. 후속 연구에서는 학업성취의 주요 변인으로 교수·학습의 상호작용과 기초학습증진의 관련성에 대한 탐구가 필요함을 제언하였다. The purpose of this study is to analyze the effects of program to improve college students’ Korean language basic learning competencies by examining the difference of academic self-efficacy and failure tolerance. The subject of the study was constituted with 48 students among lower grades through Korean language diagnosis evaluation to all freshmen of J college. For statistical processing and analysis, SPSS 22.0 was used. As a result of the study, in self-efficacy there was no difference between experimental (85.81) and control group (84.17) at the pretest, but a significant difference between the experimental (94.67) and control group (84.62) at the posttest. In failure tolerance, there was no difference between the experimental (85.50) and control group (81.06) at the pretest, but a significant difference between the experimental (93.42) and control group (84.35) at the posttest. In conclusion, the basic learning competencies improvement program helps school adjustment by enhancing their academic self-efficacy and academic failure tolerance. In subsequent research, it is necessary to explore the effect of the interaction between the instructor and the learner.
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중심합성계획법을 이용한 보행자 HIC 영향에 대한 연구
표정현(JungHyun Pyo),황규현(GyuHyun Hwang),김훈희(HunHee Kim),고은영(EunYoung Ko),홍정화(JungHwa Hong) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
Since the regulation for pedestrian protection was announced in Europe, both the passive and active systems for pedestrian protection have been investigated in motor industries and they are still continuing. Especially, the regulations of fatal head injury that could cause a pedestrian death were commonly included in the Euro Phase I, Ⅱ, and GTR(global technical regulation). Also these regulations are expected to be getting stricter. Generally, a hood-lifting system is well-known for typical active system that is related with a head injury. It was proved that the vehicle with this hood-lifting system causes massive HIC(head injury criterion) reduction comparing to one without the hood-lifting system. However, more advanced researches are still required on these active systems because the advanced researches could increase the stability and reduce the cost at the same time. On the other hand, although this passive system, which is related to its structure and material, shows relatively less HIC reduction, this system still preferred because of its strong stability and low-cost. In order to apply the passive design to the pipeline immediately, a simple design change method of the passive hood system was considered in this study. This study analyses the effect of the hood inner and hood outer with respect to pedestrian protection. The test condition was EuroNcap regulation. Then, the RSM(Response Surface method) was applied to optimization problem, and find the optimal thickness. In this study, it is the relationship between hood thickness and HIC (head injury criteria) for child headform-to-hood impact by investigating the analysis result.
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Modal Stiffness reduction method의 개념을 적용한 보행자 보호용 Hood Structure의 Passive Design
표정현(JungHyun Pyo),홍정화(JungHwa Hong),김훈희(HunHee Kim),민성기(SungKi Min),고은영(EunYoung Ko) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
There have been many studies of passive systems in an effort to decrease the worst fatal head injuries in pedestrians from car accidents. A passive system of structural improvements in vehicles has been a major focus in the motor industry in an attempt to reduce the number road deaths and injuries. The HIC (head injury criterion) is a quantity for head injuries that was obtained by integrating the acceleration that is measured by a head-form impactor for a fixed amount of time. In general, the hood should be designed with lower stiffness to decrease the HIC value. This study introduced a method for decreasing the hood stiffness by making a hole on the inner hood panel. To determine the most effective hole position on the inner hood panel, the concept of modal stiffness was considered. The FRF (frequency response function) results for vehicle model on head-form impact simulation were obtained. In addition, modal analysis of the entire vehicle model was carried out simultaneously. Subsequently, using the results of these two analyses, adequate hole positions at each modal frequency were selected and the inner hood panel was improved by making a hole on these positions. Finally, through head-form impact simulations on the improved vehicle model with the hole, it was demonstrated that the new method applied in this study is acceptable and useful. In conclusion, the improved vehicle model with a 40㎜ diameter hole on the inner hood panel showed a significant reduction in the HIC; approximately 12.2% compared to the original vehicle model. A significant reduction in the HIC can be achieved by making only a single hole on the inner hood panel. In addition, this new method is incredibly effective and simple, and can be applied immediately to currently produced vehicles as well as to various impact studies including head-form impacts.
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