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염소살균과 오존-염소살균 수도수의 사용과 관련한 가정 트리할로메탄 노출 비교평가
조완근,권기동,동종인,정용 한국환경과학회 2004 한국환경과학회지 Vol.13 No.7
Evaluated were household THMs exposure associated with the use of municipal tap water treated with chlorine and with ozone-chlorine. The current study measured the THMs concentrations in the tap water and indoor and outdoor air in the two types of household. along with an estimation of THMs exposure from water ingestion, showering, and the inhalation of indoor air. Chloroform was the most abundant THMs in all three media, yet no bromoform was detected in any sample. Contrary to previous findings, the fall water THMs concentrations exhibited no significant difference between the chlorine and ozone-chlorine treated water. However. the spring median chloroform concentration in the tap water treated with chlorine (17.6 ppb) was 1.3 times higher than that in the tap water treated with ozone-chlorine (13.4 ppb). It is suggested that the effects of the water parameters should be considered when evaluating the advantage of ozone-chlorine disinfection for THMs formation over chlorine disinfection. The indoor air THMs concentration trend was also consistent with the water concentration trend, yet the outdoor air THMs concentrations did not differ significantly between the two types of household. The indoor to outdoor air concentration ratios were comparable with previous studies. The THMs exposure estimates from water ingestion, showering, and the inhalation of indoor air suggested that, for the residents living in the surveyed households, their exposure to THMs in the home was mostly associated with their household water use, rather than the indoor air. The THMs exposure estimates from tap water ingestion were similar to those from showering.
내시경적 절제로 진단된 폴립 형태의 심재성 낭종성 위염 2예
허종현,조영화,성용완,유재훈,구동영,김갑식,노지훈,문원 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.2
Gastritis cystica profunda (GCP) is a disease characterized by hyperplastic and significant extension of cystic dilatation of the gastric mucous glands, which results in a cystic lesion in gastric submucosa. It often occurs on the part of gastroenterostomy, but can be found in the stomach without any previous surgery. GCP has variable gross finding including solitary polyps, diffuse ones, submucosal tumors, and rare giant gastric mucosal fold. It is difficult to tell GCP from a cancerous lesion by gross finding that the disease demands a necessary tissue biopsy, though GCP is commonly showed as a benign in the progress. We report a case of GCP in polypoid types diagnosed by endoscopic polypectomy.
태권도의 운동상해에 관한 조사 연구 : 대학선수들을 중심으로
조명환,이종희,장완성 경희대학교 체육대학 한국체육과학연구소 2002 體育學論文集 Vol.30 No.-
Taekwondo is one of the most popular sports in korea and new olympic regulation match and a contact sport associated with a large number of injuries. In the present study, taekwondo athletes injuries during training and competitions was investigated via questionnaire. Taekwondo athletes in the universities of Seoul and the metropolitan area in Korea were observed prospectively for one year for acute injuries during training and competitions (n=428). The most time of injuries occurrence are during main exercise and practice. The most injuries occurred by attack or return kick. Contusion(23.4%) and myalgia(23.4%) were the most common type of injuries and the lower extremity was the most commonly injured area(50.6%). The defense type athletes get injured more then the offensive type athletes and they were more injured during return kick and defense than offensive. In men athletes, who has more careers are more get injuries and in women athletes, who has more practice times in everyday are more get injured. The most of ankle(94.6%) and toe(89.6%) injuries were occurred in men athletes. Base on the results of present study, it is suggested that using the protectors and more aggressive attitude are suggestions to reduce injuries.
석유정제산업 공정과 공정장비에 기인한 휘발성 유해 대기오염물질(HAPs)의 배출량 산정기법
조완근,권기동,동종인,강경희 한국환경과학회 2004 한국환경과학회지 Vol.13 No.7
Petroleum refineries have been considered as an important emission source for atmospheric volatile hazardous air pollutants(HAPs). The emission source includes petroleum refinery processes and process equipment. The control strategy for volatile HAPs requires emission estimations of these pollutants. However, systematic methods of volatile HAPs emission from petroleum refineries have not yet been established. Accordingly, present study surveyed the estimation method of volatile HAPs emitted from the petroleum refinery processes and process equipment. The emission estimation methods for the petroleum refinery processes are applied for 11 petroleum refining facilities: fluidized catalytic cracking, thermal cracking, moving bed catalytic cracking, compressed engine, blowdown system, vacuum distilled column condensator, natural gas or distilled boiler, natural gas or distilled heater, oil boiler, oil heater and flare. Four emission estimation methods applied for the petroleum refinery process equipment are as follows: average emission factor approach, screening ranges approach, EPA correlation approach and unit-specific correlation approach. The process equipment for which emission factors are available are valves, pump seals, connectors, flanges and open-ended lines.
강상완,조영민,오종민 경희대학교 환경연구소 1999 環境硏究 論文集 Vol.9 No.-
The exposure level to various organic solvents for 330 workers in 7 domestic paint factories was evaluated by using a gas chromatograph. As a result of the investigation, twenty-five types of organic solvent were detected in the working environment. The most common organic solvent was toluene(97.0%), and followed by m-Xylene(68.2%), MIBK(59.7%), p-Xylene(52.15%), MEK(48.8%) and o-Xylene(46.1%). The mean concentration was the highest in methanol(18.236 ppm) and methyl ethyl ketone(10.565 ppm), 1.1.1-trichloroethane(8.952 ppm) and ethyl acetate(8.179 ppm). The concentration of toluene was 6.540 ppm.
내시경적 밴드 결찰술로 치료한 출혈을 동반한 위 혈관이형성증 1예
김갑식,허종현,성용완,조영화,구동영,유재훈,노지훈,문원 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.2
Gastric angiodysplasia is vascular ectasia in mucosa and submucosa of the gastric wall. It is an uncommon cause of upper gastrointesinal hemorrhage that may occur in the stomach or duodenum. There are many kinds of endoscopic treatments, such as argon plasma coagulation, electrocoagulation, heat probe, and submucosal injection of hypertonic saline mixed with epinephrine for gastric angiodysplasia. However, these treatment methods are associated with high rate of rebleeding. In order to avoid the recurrence, endoscopic band ligation has recently been used as an alternative method for endoscopic treatment of gastric angiodysplasia. We encountered a case of gastric angiodysplasia that presented with overt bleeding and anemia, and was successfully treated with endoscopic band ligation.
후두 및 하인두 암종에서 p53단백 발현과 Espstein-Barr Virus 검출
최영환,도남용,나한조,이도용,노용훈,김완수,최종선 조선대학교 2001 The Medical Journal of Chosun University Vol.26 No.2
Background and Objectives : When p53 cancer suppressor gene, occurs gene deletion or point mutation, malignancy develops by loss of p53 function with abnormal p53 protein. The Epstein-Barr virus (EBV) is the causative agent of certain type of lymphoma and undifferentiated nasopharyngeal carcinoma. However, the role of EBV as a causative factor in other head &eck tumors is not fully elucidated except nasopharyngeal carcinoma. This study, the author examined that p53 expression and detection rate of EBV correlate to development of laryngeal and hypopharyngeal squamous cell carcinoma(SCC) and play the possible role of prognostic indicators. Materials and Methods : Formalin-fixed, paraffin-embedded tissue specimen from 32 cases of larynx and hypopharyngeal squamous cell carcinomas were studied by immunohistochemical staining for p53 and EBV. The results of analysis were compared with clinicopathological parameters. Results : p53 expression was 56.3% (18 cases) and the detection rate of EBV was 43.6% (14 cases) of 32 cases in laryngeal and hypopharyngeal squamous cell carcinomas. p53 expression was correlate with histologic grade (p<05) only. Detection of EBV was not correlate with clinicopathological parmeters. Conclusion : These results suggest p53 expression and the detection of EBV may be related with development of laryngeal and hypopharyngeal squamous cell carcinoma. And, the expression of p53 protein can be used as a prognosticator in laryngeal and hypopharyngeal squamous cell carcinoma under certain limitation.
Characterization of Pasteurella multocida from pneumonic lungs of slaughtered pigs in Korea
Jong Ho Kim(Jong Ho Kim),Jong Wan Kim(Jong Wan Kim),Chung-Hyun Kim(Chung-Hyun Kim),Yu-Ran Lee(Yu-Ran Lee),Bun Seung Jo(Bun Seung Jo),ByungJae So(ByungJae So),Ha-Young Kim(Ha-Young Kim) 한국예방수의학회 2018 한국예방수의학회 학술대회자료집 Vol.2018 No.-