http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
유기염소계 잔류농약이 제주도 연안 해양환경에 미치는 영향
오윤근,김정호 ( Youn Keun Oh,Jung Ho Kim ) 한국물환경학회 1997 한국물환경학회지 Vol.13 No.3
To obtain the effects of residual organochlorine pesticides in the coastal environment on the Cheju Island, the ocean environment of Cheju city and Wimi was surveyed in May, August and October 1996. The qualification defection concentration of captan, chlorothalonil and dicofol of organochlorine pesticides in the water were 0.009ng/㎖, 0.005ng/㎖ and 0.023ng/㎖ by GC-ECD, respectively. The qualification defection concentration of captan, chlorothalonil and dicofol of organochlorine pesticides in the plant and animal were 0.018ng/g, 0.010ng/g and 0.046ng/g by GC-ECD, respectively. Captan, chlorothalonil and dicofol of organochlorine pesticides used in the farm were not detected in any water, sediment, seaweed cava(Ecklonia Cava), Agar(Gelidium amansii), turban sell(Batillus cornutus) and sea urchin(Anthocidaris Crassispina). The coastal environment in the cheju island was not effected the captan, chlorothalonil and dicofol of organochlorine pesticides used in the farm on cheju island
洛東江 河口域에 出現하는 黃록色 水色帶의 特性에 關한 硏究
박영관,오윤근,박청길,Park, Young-Kwan,Oh, Youn-Keun,Park, Chung-Kil 한국해양학회 1985 韓國海洋學會誌 Vol.20 No.3
Water quality of seawater samples from ten stations was measured and analyzed to study the causes and the characteristics of the yellowish-green-colored zone in the Nakdong Estuary in February, May, August and October, 1984. The color of the yellowish-green-colored zone was equivalent to the grade 7 according to the Forel water-color meter and was observable throughout the year. The characteristics of the zone were low in transparency and high in the concentration of suspended solids, and about 52% of the suspended solids consisted of volatile substances. The chlorophyll a contents ranged from 0.4mg/$m^3$ to 51.0mg/$m^3$ and dissolved oxygen was in a state of supersaturation within the yellowish-green-colored zone. Nutrient concentrations were higher within the colored zone than the outside. Positive correlation was observed between tne concentrations of nutrients and chlorophyll a. Our results showed that the signficant portion of suspended solids sampled from the yellowish-green-colored zone consisted of phytoplanktons of which bloom was possibly induced by inflow of the nutrient-rich Nakdong River water.
웨이브렛 다중 - 규모 공간에서 한글단어의 매칭 성능 분석
김혜금(Hye-Geum Kim),최윤근(Youn-Keun Choi),오일석(Il-Seok Oh) 한국정보과학회 1999 한국정보과학회 학술발표논문집 Vol.26 No.1B
디지털 도서관 같은 응용에서는 대용량 인쇄 한글 문서에서 단어 검색 문제가 매우 중요하다. 이러한 응응은 초고속의 매칭 알고리즘을 필요로 하는데, 속도 향상을 위해 웨이브렛 다중 규모 공간 (wavelet multiscale space)을 이용하는 아이디어는 매우 유용할 것이다. 본 논문은 다중 규모 공간에서 매칭 정확도와 속도 간의 관계를 실험으로 분석함을 목적으로 한다. 분석 자료는 고속 알고리즘을 설계하는 기초 자료로서 유용하게 사용할 수 있다.
제주도 동부해안에서의 지하해수에 대한 화학적 특성에 관한 연구
오윤근,박관석 제주대학교 환경연구소 1994 환경연구논문집 : 제주대 Vol.2 No.1
Hydrographic conditions (temperature, salinity, precipitation) and geochemical characteristics of ground-seawater have been studied in the easterncoast areas (Kimnyoung) of Cheju Island during July to September 1994. The results are summarized as follows. 1) The water temperature of the ground-seawater was approximately 17 ±1℃ and remained constant. 2) standard-seawater contained 38.69% of Na^(+), and 8.82% of M^(++), while ground-seawater contained 39.33%, of Na^(+) and 7.78% of M^(++). 3) The chemical characteristics of ground-seawater seemed to be determined by the component rates of Na^(+) and Mg^(++), therefore these two elements are considered to be important for determining the chemical composition. of ground-seawater.
오윤근 제주대학교 해양연구소 2000 해양과환경연구소 연구논문집 Vol.24 No.-
The salinization of groundwater is widely known as one type of water contamination in all over the coastal area. To investigate this salinization of groundwater, the various approaches are needed because its characteristics is widely changed from area to area and from time to time, depending on the aquifer conditions. The purpose of this study is to investigate the physical and chemical characteristics of salinization of groundwater at the east area of Jeju island. For this purpose, the major ions of groundwater, are analyzed according to the well depth and tidal levels. The results obtained from this study are summarized as follows : At D -28 well, the deeper the well depth, the greater the degree of water quality fluctuation with tidal levels. However. this phenomenon is appeared inversely at D-124 well. This difference is due to the existence of the specific permeation structure such as cracks and joints at the same level with mean sea level at their location. It is found that time la9 between tidal level and the fluctuation of water quality is 2∼2.5 hours at D-28 well. and 3∼3.5 hours at D-124 well. As the depth of well is deeper. the concentrations of major ions are increased, excepting the case of NO3- originated from the land sources.
오윤근 제주대학교 해양연구소 2000 해양자원연구소연구보고 Vol.24 No.-
The salinization of groundwater is widely known as one type of water contamination in all over the coastal area. To investigate this salinization of groundwater, the various approaches are needed because its characteristics is widely changed from area to area and from time to time. depending on the aquifer conditions. The purpose of this study is to investigate the physical and chemical Characteristics of salinization of groundwater at the east area of Jeju island. For this purpose. the major ions of groundwater. are analyzed according to the well depth and tidal levels. The results obtained from this study are summarized as follows: At D-28 well. the deeper the well depth, the greater the degree of water quality fluctuation with tidal levels. However. this phenomenon is appeared inversely at D-124 well. This difference is due to the existence of the specific permeation structure such as cracks and joints at the same level with mean sea level at their location. It is found that time lag between tidal level and the fluctuation of water quality is 2-2.5 hours at D-28 well. and 3-3.5 hours a t D-124 well. As the depth of well is deeper. the concentrations of major ions are increased. excepting the case of NO_(3)^(-) originated from the land sources.