• 멤브레인
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• 제19권3호
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• pp.194-202
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• 2009

본 연구에서 처리수를 이용한 주기적인 역세척은 춘천시 공지천의 관형 세라믹 한외여과막에 의한 고도정수처리 시스템에서 막오염을 저감하고 투과선속을 향상시키고자 수행되었다. 일정한 역세척 시간(BT) 15초에서 여과시간 즉, 물 역세척 주기(FT) 2분이 가장 높은 무차원 투과선속(초기 투과선속에 대한 투과선속)과 가장 낮은 막오염 저항값을 보였다. 또한, FT 10분으로 고정한 BT 영향의 결과에서 BT 20초가 가장 낮은 막오염 저항과 가장 높은 무차원 투과선속을 나타내어, 가장 많은 총여과부피 107.3 L를 얻을 수 있었다. 결론적으로 공지천의 정수처리에서 FT 10분과 BT 20초가 최적조건으로 관형 알루미나 정밀여과의 선행 연구결과와 정확히 일치하였다. 한편 관형 세라믹 한외여과 시스템에 의한 오염물질 평균제거율은 탁도 97.0%, 망간법에 의한 COD 32.1%, 암모니아성 질소 28.8%, 총인 54.4%로 나타났다.

• 한국농공학회논문집
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• 제56권2호
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• pp.47-57
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• 2014

This study was conducted to predict greenhouse gas (GHG) emission from paddy by future climate change scenario in Korea. Chuncheon city in Kangwon province were selected as study area. A1B Special Report on Emission Scenario (SRES) of the IPCC (Intergovernmental panel on climate change) was used to assess the future potential climate change. The rainfall and temperature was projected to increase by 8.4 % and 1.9 % (2040s), 35.9 % and 27.0 % (2060s), 19.2 % and 30.8 % (2090s), respectively, compare to the 2010s value. Under the climate change, Denitrification-Decomposition (DNDC) predicted an increase in $N_2O$, $CO_2$ and $CH_4$ emissions from paddy. The simulations resulted in annual net emissions of 0.4~2.4, 500.5~734.5 and 29.4~160.4 kg/ha/year of $N_2O-N$, $CH_4-C$ and $CO_2-C$, respectively, with a cumulated global warming potential (GWP) of $14.5{\sim}21.7t{\cdot}CO_2/ha/year$ were affected by rainfall, temperature, manure amendment and fertilizer amount. The simulation results suggested that implementation of manure amendment or reduction of water consumption instead of increased fertilizer application rates would more efficiently mitigate GHG emissions.

• Korean Membrane Journal
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• 제10권1호
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• pp.26-32
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• 2008

The Gongji stream water of Chuncheon city was filtrated by 2 kinds of tubular alumina ceramic MF membranes with periodic $N_2$-back-flushing. $N_2$-back-flushing time (BT) was changed in $0{\sim}50$ sec at fixed filtration time (FT), or back-flushing period, of 4 min for NCMT-5231 membrane ($0.05\;{\mu}m$). Then, FT was changed in $0{\sim}32$ min at fixed BT of 40 sec for NCMT-7231 $0.1{\mu}m)$). In the viewpoints of total permeate volume ($V_T$), dimensionless permeate flux ($J/J_0$) and resistance of membrane fouling ($R_f$), the optimal $N_2$-BT was 50 sec, which was the longest BT, at 4 min FT for NCMT-5231. It means the longest BT was the most effective to minimize the membrane fouling, and we could acquire the most $V_T$. But the optimal FT for NCMT-7231 was 16 min in the viewpoint of $V_T$, and was 8 min in the viewpoints of $J/J_0$ and $R_f$ at fixed BT of 40 sec. The rejection rates were excellent as $80.6{\sim}96.6\;%$ for turbidity, $35.2{\sim}58.4%$ for $NH_3$-N, $16.3{\sim}45.2%$ for T-P and $16.3{\sim}45.2%$ for $COD_{Mn}$. However, the rejection rate of T-N was very low as $2.7{\sim}13.4%$ and it of TDS below 6.1%.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제18권2호
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• pp.91-106
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• 2015

본 연구는 초등학교 1학년을 대상으로 융합인재교육(STEAM)을 적용한 수학 프로그램을 개발하고, 이 프로그램이 수학 교과에 대한 학습 동기, 창의적 인성에 미치는 영향이 어떠한지를 살펴보기 위한 것이다. 연구 결과는 다음과 같다. 첫째, STEAM 프로그램을 적용한 수학 수업은 초등학교 1학년 학생들에게 그 내용이 타당한 것으로 분석된다. 둘째, 융합인재교육 프로그램은 1학년 학생들에게 수학 교과에 대한 학습동기와 창의적 인성에 영향을 준다. 몬 연구에서는 초등학교 특정 지역의 1학년을 대상으로 하였기에 한계가 있으며, 융합인재교육 프로그램에 대한 꾸준한 자료 개발이 이루어질 필요가 있다.

• 영재교육연구
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• 제23권6호
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• pp.947-963
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• 2013

본 연구에서는 영재교육대상자의 수학적 신념이 일반학급 학생과 차이가 있는지를 분석하고 영재 교육대상자로 선발된 학생이 수학영재교육을 받음으로써 수학적 신념에 어떤 변화가 생기는지에 대해 알아보았다. 이를 통하여 다음과 같은 연구 결과를 얻을 수 있었다. 첫째, 수학성취도와 수학적 신념 사이에는 유의미한 상관관계가 있었다. 둘째, 영재교육을 받기 전의 영재교육대상자와 일반아동의 수학적 신념을 비교한 결과, 영재교육대상자의 수학적 신념이 일반학급 학생에 비해 더 긍정적인 것으로 나타났다. 셋째, 수학적 신념 중 하위영역인 수학학습에 대한 신념과 자아에 대한 신념에서 영재교육원의 영재교육대상자들의 신념이 부정적으로 바뀌었다.

• 임상간호연구
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• 제26권1호
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• pp.86-96
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• 2020

Purpose: The purpose of study was to provide basic data for developing interventions that could help middle-aged adults prepare for dignified death in the future by examining their attitudes toward death and advance directives (AD), and knowledge of AD. Methods: Data were collected through a survey of 211 middle-aged adults from January 28 to February 28, 2019, in a city located in Gangwon Province. To analyze the data, descriptive statistics, t-test, one-way ANOVA, Scheffé test, Pearson's correlation coefficient and stepwise linear regression were utilized using SPSS/WINdows 21.0. Results: The average score of the participants' attitudes toward death and AD, and knowledge of AD was 91.82±10.89, 15.53±4.27, 46.00±9.45, respectively. There were positive correlations between attitudes toward dignified death and attitudes toward AD, and knowledge of AD. Factors that influence attitudes toward AD were shown in the order of attitudes toward dignified death, knowledge of AD, and intentions to write AD (Adjusted R²=.24). Conclusion: For the dignified death in the future, it is necessary to provide middle-aged adults with an opportunity to think about the need of AD. In addition, extensive education and promotion of AD are required to correct the misunderstanding of AD.

• 한국노년학
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• 제38권4호
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• pp.945-962
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• 2018

본 연구는 회복탄력성이 노인의 정신건강에 미치는 영향에 대해 살펴봄으로써 고령사회 속 노인들의 삶의 질 향상을 위한 방안을 마련하는데 기초자료를 제공하는 것이 목적이다. 본 연구에서는 설문에 참여한 춘천지역 65세 이상 노인 2,004명이 분석에 포함되었으며, 정신건강의 부정적 측면으로 우울을, 긍정적 측면으로 정신적 웰빙을 선별하여 회복탄력성과 정신건강의 관계를 보다 통합적으로 살펴보았다. 회복탄력성과 우울의 관계는 로지스틱 회귀분석으로, 회복탄력성과 정신적 웰빙의 관계는 다중회귀분석을 통해 살펴보았다. 연구결과, 첫째, 노인의 회복탄력성은 우울과 유의미한 부적 관계를 보였다. 둘째, 노인의 회복탄력성은 정신적 웰빙과 유의미한 정적 관계를 보였다. 이상의 결과를 통해 회복탄력성이 노인 정신건강의 보호요인으로 작용함과 이를 활용하여 노인의 삶의 질 개선을 위한 효과적인 방안을 구축할 수 있는 가능성을 확인하였다.

• 한국초등상담교육학회:학술대회논문집
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• 한국초등상담교육학회 2004년도 학술대회
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• pp.223-245
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• 2004

The purpose of this study was to investigate the differences in depression, irrational faith and the school adaptation of elementary school students by their sex and region, to provide basic materials to teach children with the likelihood to be depressed by analyzing the correlation of depression, irrational faith and school adaptation, and help them to have healthy emotion and behaviors. To achieve these goals, following agenda were set. First, what are the differences in the depression, the irrational faith and the school adaptation of elementary school students by their sex and region? Second, what is the relationship between the depression characteristics and the irrational faith of elementary school students? Third, what is the relationship between the irrational faith and the school adaptation of elementary school students? Fourth, what is the relationship between the depression characteristics and school adaptation of elementary school students? : To resolve these agenda, the subjects were selected from Grade 6 students from the elementary schools locatec in Suwon and Hwaseong. The jubjects were selected from the two schools in Suwon and three schools in Hwaseong which were randomly chosen. The subjects were 670 in total. 70 insincere answers were excluded from the analysis. Therefore the subjects used in the analysis were 600 in total(150 male and female students in city respectively and 150 male and female students in rural area respectively). The tools used for this study were Children's Depression Inventory (CDI), Irrational Faith Test (over-self-reliance, dichotomy, determinism, over-concern, evasive faith, over dependent faith), School Adaptation Test (Attitudes to teachers and school environments, hobbies and specialties, academic achievements, peer relationship). Materials were processed with the SPSS program for ANOVA and correlation analysis. All the statistical values were verified at .05 level. The followings are the results of the analysis of the collected data. First, in the analysis of depression, there was significant difference between male and female students (F=4.75, p<.05). Female students (X =56.93) showed a little higher value than male students (X =53.83). There was significant difference between regions (F=13.02, p<.001), too. Rural area students (X =57.93) showed higher value than city area students (X =52.82). When analyzing irrational faith, there was significant difference between male and female students (F=S.60, p<.05). Female students (X =81.32) showed a little higher value than male students (X =77.72). There was no significant difference according to regions. When analyzing the school adaptation, there was no significant difference according to either sex or region. Second, depression and irrational faith showed highly positive correlations in all areas. In particular, over concern and evasive faith showed the highest correlation with depression inclination (r=.68, p<.001). When looking into the results by sex and by region, female students (r=.70, p<.001) and the rural area students (r=.69, p<.001) showed higher correlation between depression and irrational faith than male students and city area students (r=.63, p<.001). Additionally, in all areas including by sex and by region, a positive correlation was shown. In all variables such as male students (r=.63, p<.001), female students (r=.72, p<.001), city area students (r=.66, p<.001), and rural area students (r=.69, p<.001), over concern and evasive faith showed the highest correlation with depression inclinations. Third, irrational faith (overall) and its sub factors such as over-self-reliance, dichotomy, determinism, over-concern and evasive faith had significant negative correlations with school adaptation (overall) and its sub factors in the scope of $r=-.27{\sim}-.52$. Determinism out of the sub factors of the irrational faith had the highest negative correlation with school adaptation (overall) and sub factors at the scope of $r=-.37{\sim}-.51$. However, over-self-reliance showed the negative correlation with school adaptation (overall) and its sub factors only partially. When looking into the results by gender, both genders showed significant negative correlation between irrational faith (overall) and its sub factors with school adaptation. Male students showed highly negative correlations with school adaptation (overall) and its sub factors in determinism ($r=-.35{\sim}-52$) and over-concern and evasive faith($r=-.31{\sim}-.51$), and fern ale students showed in over-self-reliance ($r=-.27{\sim}-.45$). However over-self-reliance showed negative correlation with school adaptation and its sub factors only partially. When looking into by region, both city and rural areas showed significant negative correlation between irrational faith (overall) and it sub factors, and school adaptation. Rural areas showed higher negative correlation in irrational faith (overall) ($r=-.39{\sim}-.53$) and over-self-reliance ($r=-.32{\sim}-.44$) and dichotomy ($r=-.28{\sim}-.39$) than city areas. However over-self-reliance showed negative correlation with school adaptation and its sub factors only partially. Fourth, depression and school adaptation showed the negative correlation in all areas. In particular, academic achievements and peer relationship showed the highest negative correlation with depression (r=-.53 p<.001). When looking into the results by sex and by region, female students (r=-.62, p<.001) and rural area students (r=-.61, p<.001) showed higher negative correlation with depression and school adaptation than female students (r=-.56, p<.001) and city area students (r=-.57, p<.001). Although there was negative correlation in all areas by sex and by region, male students (r=-.52, p<.001) and rural area students (r=-.56, p<.001) showed the highest negative correlation in peer relationship and female students (r=-.57, p<.001) and city area students (r=-.56, p<.001) showed the highest negative correlation in academic records. Based on the results of the study, it is proposed to provide elementary school students sho are likely to be depressed very easily with careful counselling and teaching based on the attention and love in school fields so that they can adapt themselves to home, school and society with positive and reasonable thinking.

• 대한공간정보학회지
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• 제22권4호
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• pp.71-80
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• 2014

본 연구에서는 강원도를 대상으로 산사태로 인한 피해지역을 사전에 예측하였으며, 도로, 건물, 산림 등의 피해규모를 지자체별로 산정하였다. 산사태를 예측하기 위해서 기존의 연구 성과를 활용하여 산사태 취약성도, 발생가능성도, 위험지도 제작기법을 정립하였다. 도로, 건물, 산림의 산사태 피해규모는 누적강우량 100mm, 200mm, 300mm 발생시 각각의 산사태 위험지도를 제작하여 지자체별로 산정하였다. 그 결과 100mm~200mm 미만 누적강우량 발생시 도로피해는 홍천군, 건물피해는 정선군, 산림피해는 홍천군 순으로 나타났으며, 200mm~300mm 미만 누적강우량 발생시 도로피해는 춘천시, 건물피해는 평창군, 산림피해는 홍천군 순으로 나타났다. 특히, 300mm 이상 누적강우량 발생시 홍천군의 경우 도로, 건물, 산림피해가 다른 지자체에 비해서 가장 피해가 클 것으로 예측되었다. 이와 같이 지자체의 산사태 피해규모를 각각 산정함으로써 산사태 예방의 우선순위 결정뿐만 아니라 예산을 투입하는데 있어 의사결정의 기초자료가 될 수 있을 것으로 기대된다.

• 한국농공학회지
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• 제34권4호
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• pp.59-68
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• 1992

A Study was made to improve soil and water temperature and mechanized farming for a wetted paddy under the influence of artesian groundwater located at Samcheon-Dong, Chuncheon City, Kangweon Province. Half perforated PVC drainage pipes were installed in the test paddy to observe temperature change of water and soil. The temperature of the water in the paddy and soil itself raised significantly after the installation of the half perforated PVC pipes. A subsequent improvement of growth and yield of rice on the paddy was achieved. Harvesting operation was also improved with firm ground condition so that cutting and threshing could be done simultaneously within the paddy plot. Following results were obtained from the study. 1.Temperature of the water in a paddy under the influence of artesian groundwater was not changed notably although air temperature was fluctuated during the crop period. Soil temperature was mostly affected by the artesian groundwater. However, the half perforated PVC pipe drainage system made it possible to raise temperature of water and soil remarkably up to the level of optimum farming. 2.Total precipitation was 534.Omm during the crop period of the paddy for 118 days from May 26 to September 20 in 1992. Due to heavy rainfalls of 105.6mm and 109.8mm occurred on August 7 and August 27.1992, respectively, the rate of the artesian groundwater increased to 35 litter per minute with two to three days of time lag. 3.Average rate of the artesian groundwater was 28 litter per minute from the one year of observation. The rate varied by 0.7 to 1.3 times of average during the observation period. Peak rate of the artesian groundwater decreased to 14.5 litter per minute when daily precipitation maintained at the amount of 20 to 30mm for a long time period. Contrarily, it showed a tendency to increase to 35 to 40 litter per minute when heavier precipitation of 50 to l00mm occurred in a short period of three to five days. 4.Growth and yield of Yemyung variety of rice planted on the paddy that was facilitated with a drainage system with half perforated PVC pipes were confirmed at a normal level, while paddy without this perporated drainage system showed abnormal growth with low yield.