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미세먼지에 의한 대기질 악화가 서울시 상권 매출액에 미치는 영향 분석
이민주,김규환 한국사진지리학회 2022 한국사진지리학회지 Vol.32 No.3
This study aims to estimate the effects of fine dust pollution on economic damage in Seoul. For this study, we used panel data analysis to capture dynamic time effects on economic damages by air pollution from 2013 to 2015. The analysis results report that air pollution decreased commercial sales in Seoul. Moreover, we find time effects that the fine dust pollution leads to a decrease in sales as time goes on. In other words, the result suggests that individual interests in air quality change consumers’ behaviors by reducing outdoor activities. This study confirms the necessity of an air quality policy for Seoul citizens’ healthy lives in the city. The results of this study can be used as decision-making data for policy-making and enforcement for environmental improvement.
노랑초파리를 활용한 프로젝트 유전 실험에서 드러난 고등학생의 탐구 수행 및 프로젝트 인식
이민주 한국생물교육학회 2018 생물교육 Vol.46 No.4
Experimentation is a primary method of learning scientific inquiry and has had a role in school science for a long time. As a part of larger research on the development and application of a project on genetic experimentation for secondary students, this study investigated high school students’ inquiry practices and their perceptions of the project. It is a qualitative case study over seven weeks collecting lab reports, observation journals, student reflective journals, and recordings of student presentation and analyzing these through the method of constant comparative analysis based on the grounded theory. Throughout the project, students showed enhanced participation in their inquiries with enriched observation, increased questioning, and scientific communications, even though they sometimes stuck too much to the theoretical expectations during data collection and interpretation. Students’ difficulties were primarily related to handling flies and responding to unexpected results. Most of all, students showed value attachment to the project-to the wonder of experimentation on living organisms and understanding the nature of scientific inquiry, the importance of cooperative interactions. These findings can provide teachers with insight into students’ actual inquiry practices. They also suggest the necessity of further study on teaching strategies for school science experiment in terms of enhanced inquiry design that can stimulate students’ reasoning and discussion.
간호대학생의 비대면 수업 관련 자기주도 학습능력 영향요인
이민주,Lee, Min-Ju 한국디지털정책학회 2021 디지털융복합연구 Vol.19 No.7
코로나바이러스감염증-19로 인해 교육관련 디지털 콘텐츠에 대한 관심이 증가하고 있으며 학습자의 자기주도 학습능력의 중요성이 커지고 있다. 본 연구는 COVID-19로 인해 비대면 수업을 경험한 간호대학생의 자기주도 학습능력에 영향을 미치는 요인을 파악하기 위해 수행되었다. 연구대상자는 COVID-19로 인해 한 학기 이상 비대면 수업을 경험한 간호대학생 115명이며, 2020년 11월 18일부터 12월 1일까지 온라인설문을 통해 자료를 수집하였다. 대상자의 자기주도 학습능력에 통계적으로 유의한 영향을 미치는 요인은 감성지능의 하부요인 '감성활용' (β=.42, p<.001), 회복탄력성의 하부요인 '통제성' (β=.28, p=.001) 및 비판적 사고성향의 하부요인 '객관성' (β=.27, p<.001)이었고, 설명력은 62.0%이었다. 간호대학생의 감성지능 향상을 위한 연구와 중재가 지속적으로 필요하며 교육 컨텐츠 제작시에도 이를 고려하기를 제언한다. This study was conducted to identify the factors affecting the SDLA of nursing students who experienced online-class due to COVID-19. The subjects of this study were 115 nursing students who had experienced online-class due to COVID-19 for more than one semester at a university. Data were collected through online surveys from November 18 to December 1, 2020. Factors that have a statistically significant influenced on SDLA in nursing students were 'use of emotion' in emotional intelligence (β=.42, p<.001), 'control' in resilience (β=.28, p=.001), and 'objectivity' in critical thinking disposition (β=.27, p<.001), which accounted for 62.0% of the total variance. Research and intervention to improve the emotional intelligence of nursing students were constantly needed, and it is suggested that this be considered when producing educational contents.
균형발전지표를 활용한 지역유형화 및 특성 분석: 잠재프로파일분석을 중심으로
이민주,김의준 국토연구원 2022 국토연구 Vol.114 No.-
This study aims to categorize Korean cities using the Balanced Development Index of the Presidential Committee for Balanced National Development and explore each group's regional characteristics. To do this, we employed Latent Profile Analysis (LPA) to classify 226 cities (local governments) in Korea. The regions were classified into five groups; (A) metropolitan cities, (B) mixed type, (C) small cities in provinces, (D) capital regions, and (E) rural areas. Based on the classification results, we identified the characteristics of regional conditions and the strengths and weaknesses of the five groups. This study calls for regional customized policy development that considers regional environments in more detail. Furthermore, it is expected to be used as material for regional development policy. 이 연구는 국가균형발전위원회의 균형발전지표를 활용하여 226개 기초지자체를 유형화하고, 각 지역의 유형별, 부문별 특성을 분석하는 것을 목적으로 한다. 구체적으로 균형발전지표 중 지역 간 발전 수준을 비교하기 위한 핵심지표와 다양한 생활 여건을 반영하는 객관지표를 활용하였으며, 잠재프로파일분석(LPA: Latent Profile Analysis)을 활용하여 지역을 분류하였다. 분석 결과, 전국 226개 기초지자체는 총 5개 집단으로 분류되었는데, 각 집단에 포함된 지역의 규모와 위치를 고려해 각각 대도시형, 복합형, 지방 소도시형, 수도권 도시형, 농촌형으로 명명하였다. 분류 결과를 토대로, 5개 집단의 지역여건 특성과 부문별, 세부지표별 강점과 약점을 파악하였으며, 이를 바탕으로 집단별로 개선이 필요한 부문들을 확인하였다. 연구 결과는 지역맞춤형 지역발전 정책의 필요성을 제고하고, 정책 시행 시 의사결정을 위한 기초자료로 활용될 수 있을 것이다.
Sludge Solubilization using Microwave Irradiation in the Presence of Fe Powder
이민주,최현경,한인섭 한국지하수토양환경학회 2010 지하수토양환경 Vol.15 No.2
In this study, microwave irradiation, which is reflected by metals, was used to reduce the amount of sewage sludge, and the results were used to verify solubilization efficiency and determine optimum operation conditions. Biogas production and methane content of the gas under optimized conditions were measured with the biochemical methane potential (BMP)test. The sludge was taken from a thickened sludge tank at J sewage treatment plant (JSTP) in Seoul, Korea. For the experiments, 50 mL of sludge was filled in vessels and the vessels were irradiated with the power of 500, 600, 700, and 800W for 2~5 min. In addition, Fe powder was added by 0.01, 0.05, and 0.1 g to compare the efficiency with and without Fe powder. The results confirmed that solubilization efficiency was higher in the presence of Fe powder. The optimum conditions of 0.01 g addition of Fe powder with 800W irradiation for 5 min, yielded nearly 22.95% higher solubilization efficiency than without Fe powder. The BMP tests were carried out using sludge obtained from the experiments carried out under the optimum conditions. As a result, sludge subjected by 800W with 0.01 g of Fe powder for 5 min displayed the highest level of gas production and methane content. Through this study, it could be confirmed that solubilization efficiency increased by addition of Fe powder.
이민주,김슬기,김의준 (재) 인천연구원 2023 도시연구 Vol.- No.23
This study attempts to classify 89 depopulated areas designated by the Ministry of Public Administration and Security (MOIS) into subgroups in terms of regional population and economic structure, housing market, and transportation network. We employed Latent Profile Analysis (LPA) to classify 89 small cities and counties in danger of extinction due to Korea's depopulation. The latent variables were derived using the depopulation index of the MOIS and the Balanced Development Index of the Presidential Committee for Balanced National Development. Depopulated areas were classified into three subgroups: metropolitan cities (Group 1), mixed types (Group 2), and rural regions (Group 3). The overall neighborhood characteristics of this group were weak. We confirmed the differences in regional conditions between the groups. These results justify policies for depopulated areas that consider each characteristic. Follow-up studies are required to analyze trends in future population decline and structural causality. 이 연구의 목적은 잠재프로파일분석을 활용하여 인구 및 지역특성을 기준으로 우리나라 지방소멸 위기지역을 분류하고, 집단별 특성을 분석하는 것이다. 이를 위해 본 연구에서는 2021년 행정안전부에서 지정한 89개 인구감소지역을 지방소멸 위기지역으로 정의하고, 행정안전부의 인구감소지수와 국가균형발전위원회의 균형발전지표를 활용하여 잠재변수를 도출하였다. 분석 결과, 인구, 주거, 교통, 산업 등 다양한 지역 특성을 기준으로 지방소멸 위기지역들은 3개 집단으로 분류되었다. 집단별 특성을 평가한 결과, 89개 지방소멸 위기지역들은 지역 간 인구 규모 및 변화, 지역여건 특성 측면에서 차이가 있음을 확인하였다. 각 집단에 포함된 지역들의 규모와 특성 차이를 고려하여 각각 대도시형(집단 1), 복합형(집단 2), 농촌형(집단 3)으로 명명하였다. 본 연구에서는 지방소멸 위기지역의 특성별로 정책이 수립되어야 할 당위성을 확인하였으며, 향후 지역별 인구감소 추세 분석과 구조적인 인과성에 대한 후속연구가 추진될 필요가 있다.