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      • KCI등재

        국내·외 하수도시설 미량유기물질의 발생 특성 및 관리체계에 대한 이해

        정동환,함상이,이원석,정현미,김현욱,Jeong, Dong-Hwan,Ham, Sang-Yee,Lee, Wonseok,Chung, Hyenmi,Kim, Hyunook 대한상하수도학회 2017 상하수도학회지 Vol.31 No.6

        As the modern society is rapidly developing and people become affluent in materials, many new chemical compounds in different forms of products (e.g., antibiotics, pesticides, detergents, personal care products and plastic goods) are produced, used, and disposed of to the environments. Some of them are persistently having a harmful impact on the environment and mimicking endocrine properties; in general they are present in the environment at low concentrations, so they are called organic pollutants. These organic micropollutants flow to sewage treatment plants via different routes. In this study, the generation characteristics, exposure pathways, detection levels, and environmental impacts of organic micropollutants were critically reviewed. In addition, currently available risk assessment methods and management systems for the compounds were reviewed. The United States Environmental Protection Agency (US EPA), for example, has monitored organic micropollutants and set the monitoring and management of some of the compounds as a priority. To effectively manage organic micropollutants in sewer systems, therefore, we should first monitor organic micropollutants of potential concern and then make a watch list of specific substances systematically, as described in guidelines on listing water pollutants in industrial wastewater.

      • SCOPUSKCI등재
      • KCI등재
      • KCI등재

        托裏黃기湯이 抗癌 및 免疫作用에 미치는 實驗的 效果

        정동환,최정화,김종한,정현우,Jeong, Dong-Hwan,Choi, Jung-Hwa,Kim, Jong-Han,Jeong, Woo-Hyun 대한한방안이비인후피부과학회 2002 한방안이비인후피부과학회지 Vol.15 No.2

        Taklihwangki-Tang was a drug that treated carbuncle and cellulitis. So, the purpose of this Study was to investigate effect of Taklihwangki-Tang on the anti-cancer and proliferation of immunocytes, nitric oxide(NO) production of peritoneal macrophages. We used Taklihwangki-Tang extract(THT) with freeze-dried, 8wks-old male mice and cancer cell lines(L1210, S-180) for this Study. The proliferation of cells was tested using a colorimetric tetrazoliun assay(MTT assay). The results of this Study were obtained as follow ; THT was showed cytotoxicity on the L1210 and S-180 cell lines, increased proliferation of thymocytes. And the combined effects of THT and vincristine were became cytotoxicity of cancer cell lines and increased significantly proliferation of thymocytes. THT accelerated proliferation of thymocytes in normal mice, and decreased significantly proliferation of L1210 cells and accelerated significantly NO production of peritoneal macrophages in L1210 cells transplanted mice. This results suggest that THT inhibit proliferation of cancer cells by becoming immunocytes activity(NO production, proliferation of T-cell).

      • KCI등재

        이명박 정부의 TV정책광고 스타일 유형 분석

        정동환,이호은 한국정치커뮤니케이션학회 2013 정치커뮤니케이션 연구 Vol.29 No.-

        본 연구는 기존의 문헌연구와 선행연구를 통해서 분류되어온 여러 가지 TV광고 표현 유형과 분류 방법을 소개하고, 연구자가 새롭게 제시하는 아리스토텔레스의 드라마 형 성소 이론에 근거한 여섯 가지 지배소에 의한 분류 방법을 적용, TV정책광고의 표현 유형을 분석 하였다. 이를 통해 어떤 유형의 TV정책광고가 많이 제작되었는지 확인하고, 한국방송광고공 사에서 제작된 공익광고를 중심으로 광고제 수상작의 표현유형을 아리스토텔레스의 드 라마 형성소로 분석, TV정책광고의 수용자인 국민들에게 가장 효과적인 정부부처 정책 홍보 표현유형을 간접적으로 살펴보았고, 그 의미를 분석 하였다. 본 연구의 분석방법은 TV CF를 전문으로 제작하는 광고대행사 출신의 감독 1인과 광고학 연구자 2인이 참여, 연구 참여자에게 아리스토텔레스의 시학 이론에 근거한 드라 마 형성소 이론의 각 유형을 설명하고 함께 광고물을 분석 하는 방식으로 진행하였다. 이와 같은 연구 분석을 통해 어떤 유형의 TV정책광고가 많이 제작되고 있는지, 아울 러 어떤 유형의 TV정책광고가 국민들에게 사랑 받을 수 있고, 정부의 정책을 국민에게 홍보 할 수 있는 TV정책광고는 무엇인지 살펴보고 더 나아가 그러한 결과에 대한 의미 를 살펴보았다. This study introduces expression type and classification of several TV commercials which have been classified through existing literature and previous studies. Researchers applied classification method by six dominant based on the theory of drama's formative stuff for Aristotle who newly proposed, and analysed the expression type of TV policy advertising. Through this, we checked what type of TV policy advertising of any type has produced. Focused on public service announcement (PSA) produced by Korea Broadcasting Advertising Corporation, expression type of advertisement winning award analyses drama's stuff of Aristotle. The most effective expression type of public relations for government ministries to the people who are the audience of TV policy advertising, looked indirectly and analysed its meanings. The analysed method of this study involved 1 person for director and 2 people for advertising researcher who are from advertising agencies who produced professionally for TV CF, and explained each type of theory of drama's formative stuff based on theory of poetics of Aristotle to research participants and proceeded the way for analyzing advertisements. Through the analysis of such studies, we looked how many type of TV policy advertising is being produced, and in addition, TV policy advertising of what type is loved by the people and what is the TV policy advertising which could promote towards people for the government's policies. Furthermore, we looked at the meanings for such a result.

      • KCI등재
      • KCI등재후보

        Posterior C2-C3 Fixation for Unstable Hangman’s Fracture

        정동환,유남규,이철규,조기홍,김상현 대한척추신경외과학회 2013 Neurospine Vol.10 No.3

        Objective: This is a retrospective review of 13 unstable Hangman’s fractures who underwent posterior C2-3 fixation to describe clinical outcomes with a literature review. Methods: Thirteen patients for unstable Hangman’s fracture were enrolled between July 2007 and June 2010 were included in this study. The medical records of all patients were reviewed. Concurrently, clinical outcomes were evaluated using Neck Disability Index (NDI) scores and Visual Analogue Scale (VAS) scores during preoperative and postoperative follow up period. Plain radiographs were obtained on postoperative 1day, 1week, and then at 1, 2, 6, and 12 months. CT was done at postoperative 12 months in all patients for evaluation of bone fusion. The mean period of clinical follow-up was 17 months. Results: Mean age were 43 years old. Bone fusion was recognized in all cases at the final follow-up. The average preoperative VAS score for neck pain was 8.3±1.1, while the final follow-up VAS score was 2.07±0.8 (p<0.001). The average immediate postoperative NDI was 84 % points and final NDI was 22% points (p<0.001). There were one case of infection and 1 case of screw loosening. Conclusion: In the treatment of the patients with unstable Hangman’s fracture, posterior C2-C3 fusions is effective and curative treatments to achieve cervical spinal stability.

      • KCI등재

        시에 나타난 어학적 요소 분석 -윤동주 시의 서술어 표현 양상을 중심으로-

        정동환 한말연구학회 2012 한말연구 Vol.- No.30

        Linguistics which is bent on establishing strict scientific logic to everyday language as its main subject was prone to be inactive in study of literature. Interpretation in the dimension of art was considered as a realm of literature. However if linguistics should open itself to diverse and characteristic aspect and function of language then literature is truly one of the most important source for uncovering poetic function, aesthetic aspect and process for creation of beauty of language. Recently level of linguistic interest in works of Korean literature has been heightened. Thus value and importance of language in literary works have been recognized and people concerned are contemplating profoundly about what can be done by Korean language for literature works and linguistic analysis of poems and novels have been carried out. Poet Yun Dong-Ju among many other Korean poets of middle standing while enduring and internalizing time he had took the path of self verification process thoroughly. Literary language which was used in the process of Poet Yun Dong-Ju's watching, enduring and aesthetizing is considered as very valuable in searching for poetic function, aesthetic function and creating of meaning. Thus this author attempted to broaden horizon of literary language through analysis of the Poet Yun Dong-Ju's poems and to disclose identity and secret of literary language clearly and precisely through this study. Literary language being used in the process of Poet Yun Dong-Ju's watching, enduring and aesthetizing is viewed as very valuable for search of its poetic and aesthetic function and creating of meaning. Furthermore Poet Yun Dong-Ju contributed to extending horizon of literary language by expressing predicates in diverse aspects.

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