• Title/Summary/Keyword: Nan-Ji-Do

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Mercury Fluxes from the Nan-Ji-Do Area of Seoul -Application of Micrometerorological Methods (미기상학적 기법을 응용한 난지도지역이 수은교환율 측정연구)

  • 김민영;김기현;이강웅;정일현
    • Journal of Korean Society for Atmospheric Environment
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    • v.16 no.6
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    • pp.585-594
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    • 2000
  • Through an application of Micrometerorological methods, we conducted measurements of Hg fluxes from Nan-Ji-Do which is well known as one of the major local areal sources in Seoul metropolitan area during Match/April of 2000. In the course of our study, we determined the concentration gradients of total gaseous Hg(between 20 and 2000 cm heights) and combined these data with Micrometerorological components to derive is fluxes. It turned out that emission from and dry deposition to soil surfaces occurred at the ratio of 72:27 from a total of 271 hourly measurements. The validity of measured concentration gradients( or resulting fluxes) was evaluated in terms of percent gradient. Accordingly, about more than 95% of gradient data derived were statistically significant. The mean fluxes of Hg across soil-air interface, when computed using the concentrations gradients and relevant parameters, were found at 253(during emission) and -846ng/$m^2$/h(during dry deposition) The occurrences of abnormalously high exchange rates appear to be the combined effects of enormously high gradient values and high transfer coefficients. While the emissions of Hg occurred constantly during the whole study periods, the occurrences of dry deposition events were observed most intensively during very limited time periods(3/29 and 4/3). The results of our study cleary indicated that the studied area is a strong local areal source, while exhibiting great potential as a major sink simultaneously.

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Studies of Hg Concentrations and Fluxes in the Ventpipes Determined from a Large Landfill Site (난지도지역의 수은배출특성 연구: 배출공 내부의 농도와 배출공을 통한 수은플럭스의 관측)

  • 김민영;김기현;조석주
    • Journal of Korean Society for Atmospheric Environment
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    • v.17 no.4
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    • pp.299-312
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    • 2001
  • The analysis of vent -emitted Hg concentrations and relevant environmental parameters was made from the inlet of 42 ventpipes in Nan-Ji-Do area of Seoul during September/october of 2000. Using these data, the fluxes of Hg from the ventpipes were also derived. The mean concentration of Hg, computed using the data sets collected from 42 ventpipes, was 420$\pm$619ng m$^{-3}$ with the range of 3.45~2,952ng m$^{-3}$ . Because of large differences in concentration levels between two sectors 1 and 2 and between plain and slope areas. evaluation of the data was made by dividing them into four different categories such as plain areas of sectors 1 and 2 (and/or slope areas of sectors 1 and 2). When this classification was applied, the computed fluxes were highly different among each group with the generally enhanced fluxes in plain area relative to slope area. The computed fluxes were then used to make comparative analysis of different source processes in the study area.

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The Distribution Characteristics of CH4 and CO2 from the Infiltrated Ventpipes of the Nan-Ji-Do Landfill Site (난지도매립장 배출공으로부터 관측한 메탄 및 이산화반소의 농도분포)

  • Kim, Min-Young;Cho, Suk-Joo;Lee, Min-Hwan;Kim, Ki-Hyun
    • Journal of the Korean earth science society
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    • v.23 no.3
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    • pp.270-279
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    • 2002
  • The concentrations of major greenhouse pollutants which include $CO_2$ and $CH_4$ were determined from the outlet of 42 ventpipes in Nan-Ji-Do area of Seoul during September/October of 2000. Using these data, the concentration distribution of major greenhouse gases was checked and compared. The mean concentrations of $CO_2$ and $CH_4$, computed using the data sets collected from 42 ventpipes, were 27.8 and 50.9%, respectively. Because the concentration levels were different not only between plain and slope areas of each sector but also between chemicals, evaluation of the data sets was made after dividing them separately into four data groups. The results of our analysis clearly indicate that their distribution is rather homogeneous than those of minor constituents of landfill ventilated gases (e.g., Hg).

Studies of Ambient BTEX Distribution Characteristics in the Nan-Ji-Do Landfill Site in Seoul (난지도를 중심으로 한 대기 중 BTEX 성분의 농도분포 특성에 대한 연구)

  • 김기현;김민영;오상인;윤중섭;이강웅
    • Journal of Korean Society for Atmospheric Environment
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    • v.17 no.6
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    • pp.463-474
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    • 2001
  • In this study, the concentrations of major anthropogenic volatile organic compounds(VOCs) which include benzene, toluene, m, p-xylene, o-xylene, and ethylbenzene were measured at the Nan-ji-do landfill site during the spring and fall season of 2000. the temporal distribution characteristics of these VOCs were investigated over varying time scale. According to our study, the mean concentration of those species were computed to be 1.65$\pm$2.68(benzene), 9.62$\pm$9.32(toluene), 1.84$\pm$2.90(m, p-xylene), 0.83$\pm$1.43(o-xylene), and 1.17$\pm$1.21 ppb(ethylbenzene). The VOCs levels in the study area are not distinctively higher than the level typically found in urban area that can be subject to the influence of various anthropogenic source processes. Inspection of their temporal trends exhibited various patterns for the diurnal(and seasonal) cycle. Although each species showed distinctive patterns in temporal distribution trends, we were able to find the strong correlations among most concurrently measured VOCs except for benzene.

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Micrometeorological measurements of VOC fluxes from Nan-Ji-Do landfill area during Spring 2000 (미기상학적 기법을 이용한 난지도 매립지에서 VOCs의 Air/Soil 교환량 측정)

  • 김민영;김기현;이강웅
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2000.11a
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    • pp.76-77
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    • 2000
  • 최근 들어 대도시와 그 주변지역을 중심으로 빈번하게 발생하는 광화학적 오염에 VOCs가 기여하는 바가 크다는 것은 주지의 사실이다. VOCs가 이와 같은 국지적인 광화학적 오염에 지대한 영향을 줄뿐만 아니라 지역 규모에서도 대기 중의 화학적인 조성과 산화력을 결정하고 있어서 이들의 발생, 화학적 변환, 소멸에 따른 기작과 동태를 규명하는 것이 대기 화학에서 중요한 부분으로 생각되고 있다. (중략)

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An Analysis and Estimation about the Component of Reclamation Soil in Nan Ji Do (난지도 매립토 조성성분 분석 및 평가)

  • 최계운;김기형;오정희
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 1997.05a
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    • pp.39-42
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    • 1997
  • 현재 반입이 중지된 난지도 매립지에 공원조성이나 하수처리장등의 시설을 설치하는등 매립지를 효율적으로 이용하려는 많은 계획이 진행되고 있다. 그러나 이같은 계획을 수행함에 알서 매립토의 성분을 분석하여 이를 토대로 적절한 대책이 마련된 후에 계획이 수행되어야 할 것이다. 따라서. 본 논문에서는 현재 설치되고 있는 난지 하수처리장 부지에 대하여 매립토의 조성성분 및 침출수의 성분을 분석하고 분석결과를 토대로 시설설치에 따른 토양오염의 가능성을 최소화 할 수 있는 대책수립의 기본자료로 제공하고자 하였다. 이를 위하여 대상지역의 매립토에 대하여 이물질의 중량비와 함수량 및 입도분석을 실시하였고 아울러 침출수의 오염도를 분석하였다.

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Regional Distribution Characteristics of Total Gaseous Mercury in Air-Measurements from Urban and Mountainous Sites in Korea (대기 중 수은의 지역적 분포특성에 대한 비교연구-한반도의 도심과 산악지역을 중심으로)

  • 김민영;김기현
    • Journal of Korean Society for Atmospheric Environment
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    • v.17 no.1
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    • pp.39-50
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    • 2001
  • The spatial distribution characteristics of airborbe mercury(Hg) were investigated used its concentration data from six measurement sites selected to represent:(1) three terminal sites with heavy traffic loads in urban area, (2) one urban residential site and (3) two mountainous sites in Korea. The measurement data obtained during September 1997 through May 1998 indicated that the mean concentration of Hg from different study sites were comparably high with the mean values spanning from 5-9ng./㎥. The concentration from all those sites were systmatically high compared to those of most background sites around world or to other Korean sites investigaed previously. When results of correlation analysis between Hg and relevant parameters were compared among different study sites. temperature was most frequently found out to be in strong correlation with Hg concentrations. Results of factor analysis also indicated that Hg concentrations could be affected simultaneously by th factors affecting such parameters as ozone, temperature, ozone, carbon monoxide, and PM. The findings of enhanced Hg levels from Ji-Ri Mountain relative to terminal site suggest that is distributions may be rather homogeneous not enough to clearly distinguish areal differences and the associated source signatures between urban and rural area. The existence of systmatically high concentrations from all investigated sites also indicate that the impact of its source processes should be quite ubiquitous, while highly variable in relatively long term scale.

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A study on the Main Diseases of Three Divisions of the Pulse and the Symptoms of Diseases of Gi Kyoung Pal Maek(奇經八脈) of the Maek Kyoung(脈經) Vol. II (II) (맥경권제이(脈經卷第二) 삼관맥주병(三關脈主病)과 기경팔맥병증(奇經八脈病證)에 대(對)한 연구(硏究) (II))

  • Lim, Dong-Kook;Park, Kyung
    • The Journal of the Society of Korean Medicine Diagnostics
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    • v.11 no.1
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    • pp.1-24
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    • 2007
  • Maek Kyoung(Mai Jing, 脈經) is the first chinese specialized book of diagnostics written by Wang Hee(Wang xi, 王熙) from Seo Jin(xi jin, 西晉). He assorted the contents with pulse and medical examination from Nae Kyoung(nei jing, 內經), Nan Kyoung(nan jing, 難經), Sang Han Ron(shang han lun, 傷寒論) and Jung Jang Kyoung(zhong cang jing, 中藏經). And united with his own research, he explains medical examination and the way of talking the pulse by classifying into entrance and class. Maek Kyoung(Mai Jing, 脈經) was imported Korea by Ji Chong(zhi cong, 知聰) AD 561, and he passed through Ko Ku Ryeo(gao gou li, 高句麗) with Nae Wei Jeon(nei wai dian, 內外典), Yak Seo(yao shu, 藥書), Myung Dang Do(ming tang tu, 明堂圖) and Maek Kyoung(Mai Jing, 脈經) to be naturalized in Japan. This treatise make a special study of the second volume of the Maek Kyoung. It consists of the four chapters: Pyoung Sam Kwan Eum Yang E Sip Sa Ki Maek Je II(平三關陰陽二十四氣脈第一), Pyoung In Young Sin Mun Ki Ku Jeon Hu Maek Je E(平人迎神門氣口前後脈第二), Pyoung Sam Kwan Byoung Hu Byoung Chi Eui Je Sam(平三關病侯幷治宜第三), and Pyoung Gi Kyoung Pal Maek Byoung Je Sa(平寄經八脈病第四). Bi Geup Choun Geum Yo Bang(備急千金要方) and Eui Hak Ip Mun(醫學入門) quoted from the contents in the second volume of Maek Kyoung, and Bin Ho Maek Hak(瀕湖脈學), Gi Kyoung Pal Maek Go(奇經八脈攷) and Maek Eo(脈語) extracted from contents in the second volume of the Maek Kyoung and requoted from this contents. Contents in the second volume of the Maek Kyoung have very valuable data like that, but the literature on this subject in the form of a treatise has not been yet in Korea. So I hope this study will be useful to develope Diagnostics by correcting translation and interpretation and fixing wrong translation.

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A Study on the Main Diseases of Three Divisions of the Pulse and the Symptoms of Diseases of Gi Kyoung Pal Maek(奇經八脈) of the Maek Kyoung(脈經) Vol. II (I) (맥경권제이(脈經卷第二) 삼관맥주병(三關脈主病)과 기경팔맥병증(奇經八脈病證)에 대(對)한 연구(硏究) (I))

  • Park, Kyung;Lim, Dong-Kook
    • The Journal of the Society of Korean Medicine Diagnostics
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    • v.10 no.2
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    • pp.1-30
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    • 2006
  • Maek Kyoung(Mai Jing, 脈經) is the first chinese specialized book of diagnostics written by Wang Hee(Wang xi, 王熙) from Seo Jin(xi jin, 西晉). He assorted the contents with pulse and medical examination from Nae Kyoung(nei jing, 內經), Nan Kyoung(nan jing, 難經), Sang Han Ron(shang han lun, 傷寒論) and Jung Jang Kyoung(zhong cang jing, 中藏經). And united with his own research, he explains medical examination and the way of talking the pulse by classifying into entrance and class. Maek Kyoung(Mai Jing, 脈經) was imported Korea by Ji Chong(zhi cong, 知聰) AD 561, and he passed through Ko Ku Ryeo(gao gou li, 高句麗) with Nae Wei Jeon(nei wai dian, 內外典), Yak Seo(yao shu, 藥書), Myung Dang Do(ming tang tu, 明堂圖) and MaekKyoung(Mai Jing, 脈經) to be naturalized in Japan. This treatise make a special study of the second volume of the Maek Kyoung. It consists of the four chapters : Pyoung Sam Kwan Eum Yang E Sip Sa Ki Maek Je I1(平三關陰陽二十四氣脈第一), Pyoung In Young Sin Mun Ki Ku Jeon Hu Maek Je E(平人迎神門氣口前後脈第二), Pyoung Sam Kwan Byoung Hu Byoung Chi Eui Je Sam(平三關病侯幷治宜第三), and Pyoung Gi Kyoung Pal Maek Byoung Je Sa(平奇經八脈病第四). Bi Geup Choun Geum Yo Bang(備急千金要方) and Eui Hak Ip Mun(醫學入門) quoted from the contents in the second volume of Maek Kyoung, and Bin Ho Maek Hak(瀕湖脈學), Gi Kyoung Pal Maek Go(奇經八脈攷) and Maek Eo(脈語) extracted from contents in the second volume of the Maek Kyoung and requoted from this contents. Contents in the second volume of the Maek Kyoung have very valuable data like that, but the literature on this subject in the form of a treatise has not been yet in Korea. So I hope this study will be useful to develope Diagnostics by correcting translation and interpretation and fixing wrong translation.

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