• 대한지하수환경학회지
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• 제6권3호
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• pp.107-110
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• 1999

제주도 지하수중 질산염농도가 높은 지점을 선정하여 1995년부터 1996년까지 4차에 걸쳐 질소안정등위원소의 자연존재를 측정하고. 오염원별 기여율을 계산한 결과는 다음과 같다. 화학비료에 의한 영향이 뚜렸하게 나타나는 지점은 T-3, L-1. O-1∼O-4. F-2∼F-5. G-2의 11개소로써 화학비료 질소성분이 지하수 질산염농도 중 약 60% 이상을 차지하는 것으로 조사되었다. 그리고. 동물성 유기물질에 의한 영향이 많은 지하수는 T-4, T-5. G-2지점 3개소이며, T-4, T-5지점은 생활하수에 의한 영향으로, G-2지점은 쓰레기매립장 침출수의 영향으로 사료된다. 또한. 화학비료와 동물성 유기물질에 의한 영향을 비슷하게 받는 지하수는 T-1, T-2. L-2. F-1지점 4개소로 조사되었다.

• 한국물환경학회지
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• 제37권4호
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• pp.249-262
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• 2021

This study investigated the pollution characteristics of the main pollution zone in the Hwangguji watershed and the influence of the tributary on the main stream. The characteristics of the main pollution zone, including, the water quality index (WQI), stream rating, load duration curve (LDC), delivery load density (DLD), and contribution of the tributary to the mainstream, were evaluated by time-series visual heatmap. The WQI of the mainstream of Hwangguji was lowered to the poor (IV) level from the inflow point of Suwon stream (SW) and the LDC excess rate in the T-P was higher than that of BOD₅, especially for the wet season, suggesting that management of non-point source with T-P is preferred. The contribution (%) of the tributaries in the upstream section of Hwangguji watershed were BOD₅ 14.54%, TOC 15.67%, T-N 5.43%, and T-P 6.97%. In particular, the Suwon sewage treatment plant located in the mainstream showed a high contribution of BOD₅ (64.40%) and T-P (53.54%), respectively, due to the high discharge rate (6.019 m³/sec). Meanwhile, Sammi and Gal stream have a large impact on the mainstream with high DLD and poor WQI. Thus, both streams were considered as pollution hot spots. These results provide useful basic data for preparing more effective water quality improvement and management plans in the watershed.

• 한국콘텐츠학회논문지
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• 제21권8호
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• pp.478-488
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• 2021

본 연구는 노년기 경제적 불평등을 2007년부터 2018년까지의 한국복지패널조사 자료에서 지니계수와 10분위 분배율로 노인의 소득불평등 기여도의 변화를 분석하였다. 연구결과 전체소득의 지니계수는 2007년 0.430, 2018년 0.383으로 점진적으로 불평등이 줄어들고 있었다. 또한, 소득분위가 높아질수록 소득증가율이 높아졌다. 시간이 지남에 따라 시장소득 불평등은 증가하였고 공적이전소득과 사적이전소득의 불평등은 감소하였다. 전체소득에 대한 소득구조의 불평등 기여도 분석결과, 시간이 지남에 따라 사적이전소득의 불평등 완화 역할을 공적이전소득이 대체하고 있었다. 노인의 기초생활유지를 위한 공적이전소득의 확대는 사적이전소득의 구축효과에도 불구하고 중요한 노인 소득원이며, 노인의 소득구조의 구성요소인 시장소득, 공적이전소득, 사적이전소득은 상호 전체소득을 보완하는 성격이 있어 노인의 소득불평등을 완화하는데 기여한 소득원을 파악하여 정책에 반영하는 것이 중요하다.

• 한국환경과학회지
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• 제19권12호
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• pp.1343-1354
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• 2010

The purpose of the study was to analyze the persistence of HCH in atmosphere, soil, sediment and water of the western and southern regions of Korea. The samples from the western region were collected from Anmyeon Island, and the samples from the southern region were collected from Kimhae and Busan. The concentration of HCH isomers in atmosphere showed the pattern of $\alpha$-HCH>$\gamma$-HCH>$\beta$-HCH. The regions with high HCH concentration in the atmosphere are the regions that have been highly exposed to HCH used in the past, and the areas that have been influenced by the long range transport. The HCH that persists in the soil, water and sediment evaporates into the atmosphere, showing the characteristics of Air-Surface exchange. When the regional concentration distributions are compared, the concentration of HCH was higher in the atmosphere of a plain and the cities near the plain, than the urban areas. In this study, the ratio of $\alpha/\beta$-HCH was used as an indicator for estimating the source of Technical HCH and Lindane. According to the result, the contribution of Lindane was high in Kimhae plain and Kimhae urban areas. However, in Busan, the contribution of Technical HCH was higher than Lindane. In case of Anmyeon Island, the western region of Korea had high contribution from Tehcnical HCH. In soil and sediment, $\beta$-HCH was dominant. In water, $\gamma$-HCH was dominant among other isomers. Such results are due to $\gamma$-HCH inLindane. Furthermore, the source of $\gamma$-HCH in urban areas is assumed to be the use of medicine, medical supplies and other living supplies. Based on the results of this study, the management of HCH, a newly list up emerging POPs, should be strengthened by further research on sources, fate, persistency, accumulation and exposures and etc. to the risk assessments.

• 복식
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• 제57권3호
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• pp.176-190
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• 2007

As the globalization has increasingly brought in the disintrgration of boundary between cultures, the hybrid of styles, or fusion styles in various cultural spheres have been introduced as important theme. With this new trend, the traditional culture of Asia appeared as the source of inspiration for the West, and as the source of enhanced pride and asset for ethnic groups which have been considered "the Other" by the West. 1990's witnessed a drastically increased interest in Orientalism and Ethnic trends in most social aspects, especially in culture and art. They have been the main theme in fashion, providing the source of inspiration with elements such as the unique color schemes, composition methods and geometrical simplicity. The creative application of traditional culture into modern design as well as fashion can make a significant contribution and be a solid foundation for the development of national culture in general, since images containing cultural authenticity are the visual representation of the nation and they can be important tools for the globalization of design. This study aims to find out the formative characteristics of Korean traditional embroidery and the ways they are applied in modern fashion by world-renowned Korean fashion designers. The purpose of this study is to make a fundamental source for further study by the same author on creative design development utilizing the result. The study methods are literature study combined with research of genuine articles from museums and personal ownership as well as photos from magazines and internet. The significance of this study lies in enhancing the appreciation of Korean traditional culture and expanding the possibility of its globalization by modern application.

• 한국습지학회지
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• 제19권3호
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• pp.279-286
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• 2017

본 연구에서는 기저유출을 고려한 관측 자료 기반 오염부하량을 이용하여 비점오염 유출특성과 신규 원단위의 활용 가능성을 검토하였다. 이를 위해 금강 수계 주원천 유역의 9개 강우사상을 대상으로 디지털 필터 기법을 이용하여 유출성분을 분리하고 수치적분법을 적용하여 비점오염부하량을 산정하였다. 연구결과 비점오염 평균 기여율은 BOD 31.34%, T-N 58.94%, T-P 50.42%로 BOD의 경우 기저유출의 영향이 큰 것으로 분석되었다. 또한, 신 원단위를 적용한 오염부하량이 구 원단위를 적용한 경우에 비해 관측부하량에 근접하는 것으로 분석되었다. 이러한 결과는 효율적인 유역의 수질관리를 위해서는 직접유출에 따른 오염부하뿐만 아니라 기저유출에 따른 오염부하 관리도 필요함을 의미한다.

• 한국콘텐츠학회논문지
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• 제17권10호
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• pp.598-615
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• 2017

2000년~2011년 동안 제조업의 생산액 변화에 기여한 요인과 요인별 기여도를 투입산출 구조분해분석으로 한국과 일본 간에 비교하였다. 분석결과에 따르면, 제조업 생산 증가에 가장 크게 기여한 요인은 한국의 경우 수출인 반면에 일본에서는 기술변화이다. 한국 제조업 생산 증가에 대한 기술변화의 기여도는 상대적으로 미미하며 감소하고 있는 것으로 분석되었다. 한편, 국내최종수요는 한국에서는 수출에 이어 제조업 생산 증가의 두 번째 기여요인인 반면에 일본에서는 제조업 생산 감소의 가장 큰 기여요인이다. 특히, 두 국가 모두에서 중간재와 최종재의 국산화율은 감소하여 제조업 생산 위축의 주요 요인으로 작용하였다. 결과적으로 한국 제조업의 수출의존적 성장을 재확인하였으며, 이러한 수출의존도가 강화되고 있음도 확인하였다. 하지만, 과도한 수출의존도는 점점 심화되고 있는 세계경제 변동성과 불확실성을 고려할 때 한편으로는 한국 제조업의 지속적 성장에 장애요인이 될 수도 있음을 의미한다. 따라서 모든 기여요인이 균형적으로 성장에 기여하는 것이 중요하며, 특히, 상대적으로 저조한 것으로 분석된 기술변화의 기여도를 높이기 위한 연구개발 및 기술혁신 강화와 중간재 및 최종재의 국산화율 높이기 위한 노력이 더 요구되는 정책적 시사점이 있다.

• 한국환경과학회지
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• 제22권3호
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• pp.259-267
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• 2013

In this study, non-point source(NPS) contribution was investigated based on flow rates and water qualities of streams into the lake during rainfall events. Event mean concentration(EMC) and the pollution loads were calculated to establish a database for NPS control measurement in the survey area, and so on. The runoff characteristics of NPS were investigated and estimated on the basis of the ratio of an agricultural to forest area in the stream of sub-catch basin during rainfall events. Non-point source pollution loads were also calculated to establish a database for NPS control measure in the upstream lake Chinyang. At a rainfall event, BOD concentrations rise sharply at the early peak time of runoff, however, peaks of TSS concentration were observed at the similar time of peak flow. This was a phenomenon shown at the watersheds caused by forest and geological types. The discharged EMC range was 2.9-4.8 mg/L in terms of BOD. The discharged EMC range was 6.2-8.2 mg/L in terms of SS. The discharged EMCs of T-N and T-P were 1.4-2.5 mg/L and 0.059-0.233 mg/L, respectively. Total BOD loading rate through the 3 tributaries to the lake Chinyang was 1,136 kg/d during dry weather. The upper watershed area of the Nam-river dam in this study was divided into 14 catchment basins based on the Korean guideline for total maximum daily load(TMDL) of water quality pollutants. The higher the agricultural land-use ratio, the more NPS loading rate discharged, but the more occupied a forest area, the lower more NPS loading rate discharged. In an agricultural land-use area more than 20%, the increase of NPS loadings might be dramatically diffused by increasing the integrated complex-use like vinyl-house facilities and fertilizer use etc. according to the effective land-use utilization. The NPS loading rates were BOD 0.3 $kg/ha{\cdot}day$, SS 0.21 $kg/ha{\cdot}day$, TN 0.02 $kg/ha{\cdot}day$, TP 0.005 $kg/ha{\cdot}day$ under less than 10% agricultural land-use. In agricultural land-use of 20%-50%, these values were investigated in the range of 0.32 $kg/ha{\cdot}day$-0.73 $kg/ha{\cdot}day$ for BOD, 0.92 $kg/ha{\cdot}day$-3.32 $kg/ha{\cdot}day$ for SS, 0.70 $kg/ha{\cdot}day$-0.90 $kg/ha{\cdot}day$ TN, 0.03 $kg/ha{\cdot}day$-0.044 $kg/ha{\cdot}day$ for TP.

• 정보교육학회논문지
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• 제11권1호
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• pp.91-98
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• 2007

인터넷 통신의 발달 및 워드프로세서의 기능 향상으로 인해 일선 교육현장에서의 표절은 심각한 문제가 되고 있다. 본 연구에서는 C, C++, Java 등으로 작성된 프로그램 소스 코드들의 유사도를 측정하는 방법을 제시하고, 소스 코드를 계층적으로 군집화하고 표절 결과를 수형도로 시각화하는 방법을 제시한다. 채점자는 시각화된 수형도를 보고 임계값을 설정하여 표절 그룹을 분리할 수 있다. 실제 데이터에서 효과를 알아보기 위해서 학부 1학년생 컴퓨터 개론 및 실습과목 강의 중에 제출된 과제물 프로그램을 이용하여 실험해 보았으며, 유용하고 현실성 있는 방법임을 확인하였다.

• Asian Journal of Atmospheric Environment
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• 제9권1호
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• pp.39-47
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• 2015

The emissions of ozone precursors, NOx and VOCs from a biogenic source and port-related sources (ship, shipping container truck, and cargo handling equipment) were estimated in Busan during 2013. Total biogenic isoprene emission in Busan during 2013 was estimated to be $4,434ton\;yr^{-1}$ with the highest emission (e.g., $28ton\;day^{-1}$) in summer using a BEIS method. Seasonal ozone production rates by isoprene ranged from 0.15 (winter) to 2.08 (summer) $ppb\;hr^{-1}$, contributing the predominant portion to ambient ozone levels. Total emissions of NOx and VOCs from ship traversing Busan ports were estimated to be 29,537 and $814ton\;yr^{-1}$, respectively, showing the significant contribution to total NOx emission in Busan. The emissions of ozone precursors were significantly different depending on ship tonnage and port location. Compared to the ship emission, the emissions of NOx and VOCs from the shipping container trucks in Busan were insignificant (2.9% for NOx and 3.9% for VOCs). Total NOx and VOCs emissions from the cargo handling equipment were estimated to be 1,440 and $133ton\;yr^{-1}$, respectively with the predominance of yard tractors.