• 제목/요약/키워드: 콤

검색결과 283건 처리시간 0.028초

Evaluation of Vibrio Fischeri Toxicity for Biological Treatment of TNT-contaminated Soil (TNT 오염토양의 생물학적 처리에 대한 Vibrio Fischeri 독성 평가)

  • Park, Joon-Seok;In, Byung-Hoon;Namkoong, Wan
    • Journal of the Korean Applied Science and Technology
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    • 제30권2호
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    • pp.204-214
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    • 2013
  • This research was performed to evaluate Vibrio fischeri toxicity for TNT-contaminated soils treated by composting and slurry phase bioreactor, which were operated for 45 and 200 days, respectively. In case of composting, the GL value of acetone-added soil was 40, which was lower than th at of glucose-added soil after treatment. In case of slurry phase bioreactors under anaerobic, anaerobic/aerobic, and aerobic regimes, they showed the GL values of 6, 8, and 4 after treatment, respectively. It was evaluated that the toxicity of all slurry phase bioreactors was reduced significantly to detoxification. The relationships between GL value and the number of S. typhimurium in both composting and slurry phase bioreactor were developed as the first order equations with high correlation coefficient (r > 0.8890).

A Study on 5G Base Station Inspection using 8T8R Combiner (8T8R콤바이너를 이용한 5G 무선국 검사에 관한 연구)

  • Lee, Chang-Soo;You, Chan-Woo;Park, Sung-Il
    • The Journal of the Korea institute of electronic communication sciences
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    • 제17권2호
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    • pp.229-236
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    • 2022
  • This article studied the radio station inspection method, which utilizes the 8T8R combiner to reduce 5G radio station inspection measurement times. It is a common that 5G radio station inspections measure RF (Radio Frequency) output signals, which correspond to the number of arrayed antennas individually. However, this study suggested a way to save the time spent on existing methods, by comparing measurement values of individual channels and 8T8R. As a result, it is confirmed that when the 8T8R combiner is used, not only the resulting value of radio station inspections was accurate, but also the measurement time being shortened by up to 8 times compared to existing method.

Relation between Narrative Construction in Sitcom Friends and Mechanism of Humor-focusing on Viewers' Narrative Understanding on Binge Watching Environment (시즌제 시트콤 <프렌즈(Friends)>의 내러티브와 유머 효과 : 몰아보기(Binge Watching) 시청 방식과 관련하여)

  • Seo, Eun-Hye
    • The Journal of the Korea Contents Association
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    • 제20권2호
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    • pp.141-149
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    • 2020
  • In this paper, I studied the relation between narrative construction (especially focusing on motif) and humor mechanism based on binge watching environment. Several motif theories such as B. Tomachevski, Horst and Ingrid Dämmrich and S. Chatman are used as a basic study method in chapter II. In popular sitcom , sometimes kernels(according to S. Chatman's term) in certain season's story are changed into satellites(according to S. Chatman's term) in other season's stories. The motif of Ross and Rachel's conflict is a representative example for this switching process. Especially on binge watching environment, as the interval length is much more shortened, viewers tend to reflect their own emotional memory into characters less strongly than segment watching environment. As a result, the possibility 'heavy' stories such as seperation are quickly changed into 'light' humorous matters is increased. This kind of hierarchy variation of repeated motif make the viewers laugh, because they can feel sudden liberating energy by eliminating psychological pressure. It means the characteristics of sitcom's humor on binge watching environment can also be explained by the theory of 'laugh as a eliminating tension', which I. Kant representatively said.

Effects of Aging and Soil Texture on Composting of Diesel-Contaminated Soil (디젤오염기간 및 토성이 오염토양 콤포스팅 처리에 미치는 영향)

  • Choi, Jung-Young;Namkoong, Wan;Park, Joon-Seok;Hwang, Eui-Young
    • Journal of the Korea Organic Resources Recycling Association
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    • 제10권2호
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    • pp.132-139
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    • 2002
  • This study was carried out to investigate the effects of aging and soil texture on composting of diesel-contaminated soil. The soils used for this study were silt loam and sand. Target contaminant, diesel oil, was spiked at 10,000mgTPH/kg of dry soil. Aging times of diesel-contaminated soils were 15days and 60days, respectively. Fresh diesel-contaminated soil was also investigated. Moisture content was controlled to 70% of soil field capacity. Mix ratio of soil to sludge was 1:0.3 as wet weight basis. Temperature was maintained at $20^{\circ}C$ Volatilization loss of TPH was below 2% of initial concentration. n-Alkanes lost by volatilization were mainly by the compounds of C10 to C17. Diesel in contaminated soil was mainly removed by biodegradation mechanism. First order degradation rate constant of TPH in sandy soil was ranged from 0.081 to 0.094/day, which is higher than that in silt loam(0.056-0.061/day). From fresh to 60day-aged soils, there was little difference of TPH biodegradation rate between the soils. Carbon recovery ranged from 0.61 to 0.89. TPH degradation rate was highly correlated with $CO_2$ production rate.

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피플- 김철운 한국물가협회 회장

  • Sin, Jong-Hun
    • Digital Contents
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    • 1호통권140호
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    • pp.22-23
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    • 2005
  • 지난 1973년 한국 물가 협회를 설립하고, 현재 회장직을 맡고 있는 김철운 회장은 물가 정보 서비스의 창시자이자, 선구자다. 국내에서는 처음으로 물가 정보를 담은 월간 물가자료를 발간한 것을 비롯해 지난 1986년에는 물가 데이터베이스를 구축, 한국통신(현KT)과 데이콤을 통해 가격정보 서비스를 제공하기도 했다. 일흔이 넘은 고령임에도 불구하고 여전히 정정한 모습으로 정보네트워크 구축을 통한 세계 중심 국가의 건설을 주장하고 있는 김회장을 만났다.

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