통합적 인터넷 중독 예방 프로그램이 초등학생의 자기조절력과 인터넷 중독에 미치는 효과

문소연,이병숙 한국간호과학회 2015 Journal of Korean Academy of Nursing Vol.45 No.2

Purpose: The purpose of this study was to develop an integrated internet addiction prevention program and test its effects on the self-regulationand internet addiction of elementary students who are at risk for internet addiction. Methods: A quasi-experimental study with a nonequivalentcontrol group pretest-posttest design was used. Participants were assigned to the experimental group (n=28) or control group(n=28). Contents of the program developed in this study included provision of information about internet addiction, interventions for empowermentand methods of behavioral modification. A pre-test and two post-tests were done to identify the effects of the program and theircontinuity. Effects were testified using Repeated measures ANOVA, simple effect analysis, and Time Contrast. Results: The self-regulationof the experimental group after the program was significantly higher than the control group. The score for internet addiction self-diagnosisand the internet use time in the experimental group were significantly lower than the control group. Conclusion: The effects of the integratedinternet addiction prevention program for preventing internet addiction in elementary students at risk for internet addiction were validated.

외식기업 종사원의 직무소진이 조직냉소주의와 직무몰입 및 이직의도에 미치는 영향에 관한 연구: 매니저의 리더십과 외식기업 운영기간의 조절된 조절효과 분석

문소연,조미희 한국외식경영학회 2020 외식경영연구 Vol.23 No.3

This study was designed to investigate how foodservice employees’ job burnout influences their organizational cynicism, further their commitment and turnover intention. Additionally, we divided our restaurant sample into two categories(start-up vs. established) based on their business years in operation and then examined if two types of managers’ leadership(democratic vs. authoritarian) could possibly moderate the effects of employees’ burnout upon their organizational cynicism. Results showed that job burnout significantly increased employees’ organizational cynicism, which in turn decreased organizational commitment, further increased turnover intention. Generally, we found that democratic leadership would be more useful in decreasing the effect of employees’ burnout upon organizational cynicism for the established restaurant sector than for the start-up restaurant sector. We expect that our findings can contribute to provide effective leadership strategies in the foodservice industry. 본 연구는 외식기업의 효율적인 인적자원관리 방안을 제시하고자 종사원의 직무소진이 조직냉소주의와 조직몰입, 이직의도 간의 관계를 실증적으로 분석하고, 직무소진이 조직냉소주의에 미치는 악영향을 완화할 수 있도록 매니저의 리더십과 외식기업 운영기간의 조절된 조절효과를 검증하고자 하였다. 이에 외식기업 종사자 398명의 응답을 바탕으로 조사를 수행하였으며, 종사원의 직무소진이 조직냉소주의를 유의적으로 높인다는 것을 알아내었다. 또한, 조직에 대한 종사원의 냉소주의는 조직몰입을 유의적으로 낮추며 이직의도는 유의적으로 높일 수 있다는 것을 밝혀내었다. 직무소진과 조직냉소주의 간의 정의 관계는, 신생 외식기업에서보다 중견 외식기업에서 매니저의 민주적 리더십이 행사될 경우에 낮아지는 것으로 나타났다. 또한, 신생기업에서 종사원의 직무소진이 높지 않을 때에는 매니저가 권위적 리더십보다는 민주적 리더십을, 중견기업에서는 종사원의 직무소진이 매우 높을 때 매니저가 권위적 리더십보다 민주적 리더십을 행사하는 것이 종사원의 냉소주의를 낮추는 데 효과적이라는 것을 알아내었다. 본 연구 결과를 바탕으로 학술적 시사점과 각 외식기업에서 종사원의 상황에 따른 적합한 리더십 전략을 제공할 수 있도록 실무적 시사점이 제시되었다.

Multiphysics Software를 활용한 원심 압축기용 틸팅 패드 저널 베어링 특성과 회전체 동역학 분석

문소연,윤종완,박상신 한국트라이볼로지학회 2023 한국트라이볼로지학회지 (Tribol. Lubr.) Vol.39 No.6

This study explores the characteristics of tilting pad journal bearings used in the high-speed rotating shaft systems of centrifugal compressors. A centrifugal compressor is a high-speed rotating machine that is widely used to compress gases or vapors employed in various industrial applications. It transfers the centrifugal force of a fast-spinning impeller to the fluid and compresses it under high pressure. Many high-speed rotating shaft systems, which require high stability, use tilting pad journal bearings. The characteristics of these bearings can vary depending on several properties, and identifying the appropriate characteristics is essential to optimize the design on a case-to-case basis. In this study, the authors perform a time-dependent analysis of the properties of tilting pad journal bearings and the rotordynamics of the rotating shaft system using COMSOL Multiphysics software. Specifically, the authors analyze the characteristics of the tilting pad journal bearings by performing a parametric sweep using parameters such as pad clearance, maximum tilting angle, preload, number of pads, and pad pivot offset. The authors then use the results of the bearing-characteristics analysis to evaluate the vibration of the rotating shaft and verify its operation within a desirable range. The understanding gained from this study will allow us to determine the optimal properties of these bearings and the limiting operational speed using COMSOL Multiphysics software.

로컬의 꽃, DMO! : 지역관광추진조직 육성사업의 성과와 과제

문소연 한국문화관광연구원 2024 한국관광정책 Vol.- No.96

An Exploratory Study of South Korean Expatriate Family Adjustment in Thailan

문소연,백지연,조현정 이화여자대학교 경영연구소 2020 신산업경영저널 Vol.38 No.2

The purpose of this study is to explore and understand the adjustment of Korean expatriate families in Thailand by exploring the process of adjustment and examining how perceived cultural differences affect family adjustment. The results of the study demonstrate that, while some organizational support was provided to expatriates during the preparation stages, expatriate spouses and children were generally not provided with any support from their home company. The factors hindering expatriate adjustment were mostly related to work adjustment. However, expatriate spouse adjustment was related to the general adjustment of the family. Meanwhile, the adjustments made by the expatriate children were related mostly to their new schools; their English proficiency, school courses, school friendships, and the care received from school were the influential factors affecting this adjustment. The relationship between cultural difference and expatriate family adjustment was insignificant; expatriate spouses and children rarely had an opportunity to interact with Thai nationals.

Effects of an Achievable Productive Vocabulary Levels Test on Low English Proficiency Learners’ Performance and Perceptions

문소연 서울대학교 교육종합연구원 2014 The SNU Journal of Education Research Vol.23 No.-

The Productive Vocabulary Levels Tests (PVLTs, Laufer & Nation, 1999) to assess second language learners’ size of controlled productive vocabulary have long been used in vocabulary research and assessment. The existing frequency levels of PVLTs between 2000 and 10000 words, however, seem too difficult for low English proficiency (LEP) learners to obtain cut-off scores, usually 75-80%. In order to help and motivate the LEP learners to feel sense of achievement, Abdullah et al. (2013) designed and validated the 500-word level PVLT (henceforth PVLT 500). This paper empirically examines the effects of the low-leveled PVLT 500 upon Korean high school LEP learners’ performance and perceptions, through both validating PVLT 500 in comparison with the 2000-word level PVLT (henceforth PVLT 2000) and analyzing test-takers’ questionnaire responses. With the proper assessment the study reveals that low-leveled PVLT can be actively applied in Korean EFL high school classrooms. Actually, it is LEP learners, who have been neglected and decentralized in the classrooms, who need ‘achievable’ tests, not the tests they often fail.

교수학습 맥락에서 학습분석 대시보드의 활용 효과에 대한 메타분석: 학습자의 인지, 정의, 메타인지 영역을 중심으로

문소연,김가은,차은주,신안나,조일현 한국컴퓨터교육학회 2023 컴퓨터교육학회 논문지 Vol.26 No.3

The purpose of this study is to validate the effects of learning analytics dashboards used in educational contexts by using meta-analysis. We searched two major academic databases, RISS and Web of Science, and identified 26 recent articles following the PRISMA guidelines. The main results of this study were as follows: First, the result of the trend analysis revealed that most of the research subjects were undergraduate and graduate students from East Asian countries. And quantitative data were mainly used, in which the individual learner’s scores and the average score of peer learners were presented together. Second, according to the meta-analysis findings, the average effect size of learning analytics dashboards was .419. Moreover, the effect sizes for cognitive, affective, and metacognitive abilities were .377, .737, and .334, respectively. Based on the above results, we discussed implications and suggestions for further study. 본 연구의 목적은 메타분석 기법을 적용해 기존 교수학습 맥락에서 활용되어 온 학습분석 대시보드의 효과를 종합적으로 검증하는 것이다. 한국교육학술정보원(RISS)과 Web of Science에서 제공하는 선행연구를 연구대상으로 하여, PRISMA 방식을 기반으로 총 26편의 연구물을 최종 분석 대상으로 선정하였다. 연구의 주요 결과는 다음과 같다. 첫째, 학습분석 대시보드에 관한 연구 현황 분석 결과, 대시보드의 주요 활용 대상은 동아시아 국가의 대학생과 대학원생이었으며, 주로 활용되는 데이터의 유형은 양적 데이터로, 학습자의 원점수와 동료 학습자의 평균 점수를 함께 제시하는 형태였다. 둘째, 학습 효과를 인지, 정의, 메타인지 영역으로 구분하여 메타분석을 수행한 결과, 전체 효과 크기는 .419로 도출되었다. 영역별 효과 크기의 경우, 인지 영역은 .377, 정의 영역은 .737, 메타인지 영역은 .334로 도출되었다. 이와 같은 결과를 토대로 향후 학습분석 대시보드의 개발 및 활용 방향과 후속 연구를 위한 제언을 제시하였다.

수련병원 내 소아치과 전공의 진정법 교육 현황 조사

문소연,송제선,신터전,최성철,양연미,Moon, Soyeon,Song, Je Seon,Shin, Teo Jeon,Choi, Sungchul,Yang, Yeonmi 대한소아치과학회 2021 대한소아치과학회지 Vol.48 No.3

The purpose of this study was to investigate current status of sedation training for the residents in pediatric dentistry training institutions and opinions about continuing education after the residency program. Surveys were sent to 18 pediatric dentistry training institutions by e-mail, and the responses were collected and analyzed. Most of the sedation education period for the residents were the 1st-year education (61.1%) and 1 - 3 years of integrated education (55.6%). In terms of an externship, 5 institutions (27.8%) sent their residents to the department of anesthesiology. Second half of the 1st year (50%) was the highest for a resident to use sedation for the first time. The period of supervisor participation varied from not participating at all to whole time throughout the residency program. The sedation training is conducted at all training institutions, but there were variations in the experience that a resident can gain. All training institutions agreed on the necessity of continuing education of the sedation, but there were various opinions regarding time, method, and the period of review course. Overall, this study suggested that continuing education should be consisted of 1 - 2 hours of didactic education every year and clinical skills and simulation training in every 2 - 3 years.

광평수토지의 공시지가 증감여부에 관한 연구

문소연,조주현 한국주택학회 2016 한국주택학회 학술대회 발표논문집 Vol.2016 No.1

비점오염 저감시설에 적용되는 여재의 흡착 및 탈착 능력 평가

문소연,홍정선,최지연,유기경,김이형 한국습지학회 2015 한국습지학회지 Vol.17 No.3

도시화는 불투수면의 증가를 초래하여 자연적인 물순환 시스템의 왜곡, 비점오염물질 유출 증가, 하천의 수질악화 및수생태계 훼손 등의 문제를 발생시킨다. 불투수면 증가로 인한 수리수문학적, 생태학적 및 환경적 영향을 저감하기 위하여 선진국에서는 저영향개발(Low Impact Development, LID)기법을 주요한 대안으로 적용하고 있다. 국내에서도2012년에 비점오염원관리종합대책을 통하여 LID 기법을 비점오염 관리의 주요 방안으로 추진하고 있다. LID 시설은물순환 구축을 통한 강우유출수의 유출저감과 함께 식물, 미생물, 여재에서의 다양한 물리화학적 및 생물학적 기작을이용하여 오염물질을 제거하는 기술이다. 이러한 LID 시설에는 다양한 여재가 사용되고 있으나 여재의 오염물질 저감능력 평가를 위한 흡착과 탈착 특성 등에 대한 종합적인 비교평가가 수행되지 못하고 있다. 따라서, 본 연구에서는LID 시설에 사용되는 다양한 여재 중에서 모래, 자갈, 바이오세라믹, 우드칩 및 바텀애쉬에 대하여 중금속(Pb, Cu)에대한 흡착 및 탈착 특성 분석을 통해 여재의 환경성 평가를 수행하였다. 분석결과, 연구에 사용된 모든 여재에서 Pb에대한 흡착 선호도가 Cu에 비하여 높게 나타났으며 흡착 kinetic 모델에서는 Pseudo second order equation의 적용성이 높게 평가되었고, 흡착등온식 모델에서는 Langmuir-3 isotherm이 높은 적용성을 보였다. 특히 여재 중에서 바이오세라믹과 우드칩의 경우 Pb에 대한 뛰어난 흡착능을 보이는 것으로 평가되었다. 여재의 탈착 실험 결과 모든 여재에서환경부 유해물질 기준에 초과하지 않아 LID시설에 다양하게 적용 가능한 것으로 나타났다. Urbanization causes many environmental, hydrological and ecological problems such as distortion of the natural water circulation system, increase in nonpoint source pollutants in stormwater runoff, degradation of surface water quality, and damage to the ecosystem. Due to the increase in impervious surface by urbanization, developed countries apply low impact development (LID) techniques as important alternatives to reduce the impacts of urbanization. In Korea, LID techniques were employed since 2012 in order to manage nonpoint source pollutants. LID technology is a technique for removing pollutants using a variety of physical, chemical and biological mechanisms in plants, microorganisms and filter media with the reduced effluence of stormwater runoff by mimicking natural water circulation system. These LID facilities are used in a variety of filter media, but an assessment has not been carried out for the comprehensive comparison evaluation of adsorption and desorption characteristics for the pollutant removal capacity. Therefore, this study was conducted to analyze the adsorption and desorption characteristics of various filter media used in the LID facilities such as sand, gravel, bioceramic, wood chips and bottom ash etc. in reducing heavy metals(Pb, Cu). In this study, the adsorption affinity for Pb in all filter media was higher than Cu. Pseudo second order equation and Langmuir-3 isotherm are more applicable in the adsorption kinetic model and adsorption isotherm model, respectively. As a result of the desorption experiment, the filter media does not exceed KSLT which is the hazardous substance leaching limit, showing the capability of the filter media in LID. The bioceramic and woodchip as filter medias were evaluated and exhibited excellent adsorption capacity for Pb.