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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.
정동환,심상희,최정화,Jeong, Dong-Hwan,Sim, Sang-Hee,Choi, Jung-Hwa 대한한방안이비인후피부과학회 2002 한방안이비인후피부과학회지 Vol.15 No.2
I experienced one case of 3 degree bum from the 14th in October to the 15th in November 2001 in Dongshin University Gwangju Oriental Medical Hospital ENT${\cdot}$ Dermatology. Administration of herbal medicine "PalmuITang-Gami", external medicine, acupunture, and venesection therapy, as a curative means of Stagnation of Ki and Stasis of blood achieved desirable effect. In the future, it is necessary more clinical study for developing of oriental medical therapy and oriental external medicine of 3th degree burn.
정동환,심상희,유미경,김종한,박수연,최정화,Jeong, Dong-Hwan,Sim, Sang-Hee,Yu, Mi-kyoung,Kim, Jong-Han,Park, Su-Yeon,Choi, Jung-Hwa 대한한방안이비인후피부과학회 2004 한방안이비인후피부과학회지 Vol.17 No.3
Hemifacial spasm is painless uncommon disorder characterized by involuntary paroxysmal movement of one side face. In the treatment of hemifacial spasm, the Western operation or non-operation therapy has many side effect such as hearing loss, exudative otitis media, facial paralysis etc. So we studied mainly the effect of cause, treatment frequency, diseased part of 29 cases with hemifacial spasm for effective clicical application of oriental medicine. The results of study are as follow; 1. It shows more female patients than male patients, and mostly patients in their forties. 2. The diseased part is shown more on left side than right side, and the left side hemifacial spasm is cured more effective. 3. The causes of hemifacial spasm are mainly stress, ignorance, overwork, and the stress, a cold are more effective causes than ignorance in. 4. The disease period is mainly within six months, and that period is the most effective time. 5. The palpebral site is the most frequent site, ineffective site. 6. The effect go with the treatment frequency is not available. 7. There is a 55 percent improvement of 29 cases.
정동환,심상희,최정화,Jeong, Dong-hwan,Sim, Sang-hee,Choi, Jung-hwa 대한한방안이비인후피부과학회 2003 한방안이비인후피부과학회지 Vol.16 No.1
The relapsed patient who has diagnosed flat wart and treated with continuous immunotherapy in Western Dermatology come to Dongshin University Oriental Medical hospital OPD Ophthalmology and Otolaryngology from 23 December 2002 to 18 March 2003. We diagnosed as Gi(氣) deficiency and stagnation of damp. stagnation of Gi(氣) and blood stasis caused by insufficiency of Yang of the spleen treated with Gamiijungtang(加味理中湯) and Sodogeumgagam(消毒飮加減). As a result, we got the attentive effect and report on a paper.
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).
반하가 난황으로유발된 생쥐의 알레르기성 천식에 미치는 영향
정동환,김종한,박수연,최정화,Jeong, Dong-Hwan,Kim, Jong-Han,Park, Su-Yeon,Choi, Jeong-Hwa 대한한방안이비인후피부과학회 2008 한방안이비인후피부과학회지 Vol.21 No.1
Objective : This study was designed to investigated effects of Pinelliae Rizoma (PR) on asthma Methods : Detecting antigen specific antibody isotypes, cytokines in serum and bronchoalveolar lavage fluid (BALF). In addition, the present author also investigated changes in weight of spleen and proliferation rates of splenocytes. Finally, histopathological observation of the lung tissue was also investigated. Results : Oral administration of PR lowered OVA specific IgE levels in serum, IgG1 levels in serum and BALF. PR also decreased production levels of IL-4 in BALF. In addition, total cells in BALF were decreased by oral administration of PR effectively. In histapathological observation, PR group showed downward tendency of inflammatory cell infiltration around small vessels. Conclusion : PR is useful to treat patients with asthma and the mechanisms are related in suppression of Th2 skewing reactions.
연구논문 : 소옥천유역 토양유실 우심지역 선정 및 대책에 관한 연구
정동환 ( Dong Hwan Jeong ),김해정 ( Hae Jung Kim ),이영준 ( Young Joon Lee ),홍선화 ( Sun Hwa Hong ),윤조희 ( Jo Hee Yoon ),최희락 ( Hee Lak Choi ),조홍래 ( Hong Lae Cho ) 한국환경영향평가학회 2012 환경영향평가 Vol.21 No.5
This study aims to find out critical areas of a soil loss and propose feasible measures to reduce the water quality deterioration by a soil lose. As a study area, the So-ok stream catchment locating at the upper area of Daecheong Reservoir is selected and intensive field observation was carried out. RUSLE model is applied to assess the impact of the pollution migration by a soil ross from the critical areas during storms on the water quality of Chusori embayment. As results, total amount of the soil ross assessed against to the critical area on which major type of land use is a orchard for fruits is 54.3 ton/ha/yr and that of an abandoned mine site is about 200 ton/ha/year. In particular as effective measures, a plantation of an appropriate species of fruit trees and an application of ecologic restoration schemes are proposed against to the orchard and the abandoned mine site, respectively.