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RISS 인기검색어
- 검색키워드
- 저자 : 최경숙(Choi, Kyung Sook) (검색결과 433 건)
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최경숙,김규상,최병순,최정근,이세휘,문영한,Choi, Kyeong-Sook,Kim, Kyoo-Sang,Choi, Byung-Soon,Choi, Jung-Keun,Lee, Se-Hui,Moon, Young-Hahn 대한예방의학회 1996 Journal of Preventive Medicine and Public Health Vol.29 No.1
We studied the association of nonspecific bronchial hyperresponsiveness with general characteristics, exposure concentration, respiratory symptoms, chest x-ray findings, past histories and pulmonary function. We determined bronchial hyperresponsiveness by methacholine challenge test. And we conducted a respiratory symptom questionnaire and performed spirometry on 111 workers occupationally exposed to isocyanates in various industries. About 21.6% of subjects had bronchial hyperresponsiveness. No significant differences were observed between the hyperresponsive and non-responsive group with respect to age, sex, employment period, height, and smoking histories. Cough and breathlessness were significantly associated with the bronchial hyperresponsiveness. The hyperresponsive group had more experience of bronchitis and asthma in the past than the non-responsive group. The lower $FEV_1\;and\;FEV_1%$ were closely related with bronchial hyperresponsiveness. Bronchial hyperresponsiveness seems to be associated with some of respiratory symptoms, past histories and pulmonary function parameters in workers exposed to isocyanates.
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최경숙,장정렬,Choi, Kyungsook,Jang, Jeongryeol 한국관개배수위원회 2014 한국관개배수논문집 Vol.21 No.1
This study investigated the effects of NPS(non point source) pollution reduction of sediment traps through field experiments. Various sizes of 4 sediment traps were applied in a upland field located in Gunwi and assessed the infiltration and storage effects as well as NPS pollution reduction effects of this technique. The characteristics of deposited soil in the sediment traps were also analyzed including distribution of particle size, soil texture, and chemical properties. The results showed that slightly different composition of soil particle size from each sediment trap with high proportion of 0.15mm and 0.25mm ranges of soil particle diameters, while the loamy sand is the main types of deposited soils in the sediment traps. Decreased NPS pollution were observed from the water quality analysis of the samples taken from the sediment traps. Further research need to be proceeded continuously to improve this technique in order to utilize on upland fields for management of agricultural NPS pollutions.
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AnnAGNPS 모형을 이용한 관목림지의 비점오염 모의
최경숙,Choi Kyung-Sook 한국농공학회 2005 한국농공학회논문집 Vol.47 No.4
AnnAGNPS model was applied to a catchment mainly occupied with bushland for modeling non-point source pollution. Since the single event model cannot handle events longer than 24 hours duration, the event-based calibration was carried out using the continuous mode. As event flows affect sediment and nutrient generation and transport, the calibration of the model was performed in three steps: Hydrologic, Sediment and Nutrient calibrations. The results from hydrologic calibration for the catchment indicate a good prediction of the model with average ARE(Absolute Relative Error) of $24.6\%$ fur the runoff volume and $12\%$ for the peak flow. For the sediment calibration, the average ARE was $198.8\%$ indicating acceptable model performance for the sediment prediction. The predicted TN(Total Nitrogen) and TP(Total Phosphorus) were also found to be acceptable as the average ARE for TN and TP were $175.5\%\;and\;126.5\%$, respectively. The AnnAGNPS model was therefore approved to be appropriate to model non-point source pollution in bushland catchments. In general, the model was likely to result in underestimation for the larger events and overestimation fur the smaller events for the water quality predictions. It was also observed that the large errors in the hydrologic prediction also produced high errors in sediment and nutrient prediction. This was probably due to error propagation in which the error in the hydrologic prediction influenced the generation of error in the water quality prediction. Accurate hydrologic calibration should be hence obtained for a reliable water quality prediction.
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가정, 학교, 대중매체의 교육경험이 식품쓰레기 감량 실천 행동에 미치는 영향
최경숙,김지은,Choi, Kyoung Sook,Kim, Ji Eun 한국식생활문화학회 2021 韓國食生活文化學會誌 Vol.36 No.3
The purpose of this study is to observe the influence education experience (home, school, and mass media) on reducing practice behavior(purchasing, using, disposing and leading) of food-related wastes. The study also sought to promote strategy and suggest effective activation plans for the vitalization of behavior of reducing food-related wastes. The study subjects were 412 adult consumers who answered a structured questionnaire. The main findings are as follows: First, the scores of home education experience were 3.61±0.71, which was the highest, and 3.45±0.74 for school education experience, which was the lowest. Second, according to factor analysis, the reducing practice behavior of food-related wastes was converged purchasing, using, disposing and leading behavior. The scores of disposing behavior were 3.79±0.67, which was the highest, and 2.87±0.82 for leading behavior, which was the lowest. Third, the common variables influencing the reducing practice behavior(purchasing, using, disposing and leading) of food-related wastes were home education and mass media and the powerful variable influencing was home education. The results of this study can be used as basic data for the development of educational programs for effective food-related waste reduction.
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최경숙,김해도,Choi, Kyung-Sook,Kim, Hae-Do 한국농공학회 2012 한국농공학회논문집 Vol.54 No.3
Saemangeum development project is the world's largest tidal flat reclamation project. It is currently under construction, and proceeding with phased developments. The construction of agricultural areas within the Saemangeum reclamed lands is also a part of this project. These areas will have multi-functional complexes aiming to produce mainly eco-friendly horticultural crops and livestock products for the purpose of export. The major concern is to obtain sufficient water with appropriate quality to supply to those areas. The objective of this study is therefore to provide available water supply plans for agricultural purpose, especially for horticulture and livestock complexes. Alternative methods for water supply are purifying water from the Saemangenm lake or using water supply services providing by K-water or local governments. This study investigates to find an economical water supply plan through comparisons of these methods. As a result, the water purification method with Saemangeum lake water could be advantageous for given water supply conditions to horticulture and livestock complexes.
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최경숙 ( Kyungsook Choi ),장정렬 ( Jeongryeol Jang ) 한국농공학회 2012 한국농공학회 학술대회초록집 Vol.2012 No.-
밭비점오염저감을 위해 미국을 비롯한 선진국에서는 다양한 관리기법들이 개발되고 현장에 적용되고 있으나 우리나라는 아직 농경지 비점오염관리기법에 대한 기술개발 및 체계적인 연구가 진행되지 않아 현장적용에 많은 어려움이 있다. 이에 따라 본 연구에서는 밭 비점오염물질을 저감하기 위한 일환으로 해외에서 널리 적용되고 있는 초생대 기법을 밭경지에 적용하여 현장실험을 통해 우리나라 여건에 적합한 초생대 설치가이드라인을 제시하고자 하였다. 초생대를 이용한 밭비점오염저감은 초종의 선정이 매우 중요하다. 따라서 본 연구에서는 초생대 최적기법 제시를 위해 초기단계로서 초생대에 가장 적합한 초종이 무엇인지를 알아보고자 하였으며 이를 위해 초생대에 적용가능한 다양한 초종을 선정하여 생육모니터링 및 비점오염저감효과를 분석하여 최종적으로 우리나라에 적용가능한 최적의 초종을 제시하고자 하였다. 본 연구를 위해 선정된 초종은 다년생, 일년생, 월동일년생으로 구성하여 초생대 조성이 용이하고 관리효율성이 높은 초종으로서 손쉽게 구할 수 있고, 우리나라 기후와 토양특성에 적합하며 초생대 기능에 부합한 초종을 선정하였다. 선정된 초종은 보리, 호밀, 헤어리비치, 자운영, 톨페스큐, 켄터키블루그라스, 잔디, 피, 바랭이, 츄파이며, 생육시기를 고려하여 적정시기에 파종하여 초생대를 조성하였다. 초생대 초종의 생육모니터링 결과, 초종의 생육은 작물과 같이 초기에는 느린 생장을 보이다가 어느 시점부터는 급속한 생장을 나타내는 전형적인 S자 곡선의 생육과정을 나타내었으며, 대체적으로 일년생 및 월동일년생과 같이 어느 시기 이상이 되면 급격한 생육현상을 나타내는 초종보다는 완만한 S자곡선을 나타내는 다년생 초종이 예초 등의 유지관리측면에서 유리하고 4계절 초생대 기능을 유지 할 수 있어 초생대에 보다 적합한 초종으로 파악되었다. 초생대 시험포의 강우-유출패턴은 초종에 따라 유출률이 다르게 나타났으며, 실험방법에 따라 14.5~95.8%정도의 유출량 차이를 나타내었다. 초생대의 유출저감효과는 대조구에 비해 8.8~42.5% 정도의 유출저감효과가 있는 것으로 조사되었으며, 초생대설치에 따른 초종별 비점오염저감효과는 TS의 경우 15.6~90.3%, T-P의 경우 49.9~87.8%, T-N의 경우 6.7~91.1%의 저감효과가 있는 것으로 나타났다. 이러한 결과들을 종합적으로 분석해 볼 때 유출 및 비점오염저감효과와 유지관리측면에서 가장 유리한 초종은 잔디로 나타났으며, 켄터기블루그라스도 초생대에 적용가능한 적합한 초종으로 조사되었다.
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