SWMM 과 희귀분석법에 의한 유역의 오염부하량 산정 비교

윤춘경(Chun Gyeong Yoon),전지홍(Ji Hong Jeon),함종화(Jong Hwa Ham) 한국물환경학회 2001 한국물환경학회지 Vol.17 No.2

Rating curve method and SWMM (Storm Water Management Model) were applied to estimate pollution loading from Hwa-Ong watershed in Kyunggi-Do. Sampling data from monitored sites were used to derive rating curves and calibrate SWMM, and they were applied to the whole watershed including non-monitored subcatchments. Overall, the results from these methods were comparable and the loadings were in the same range and the difference was acceptable considering complicated natural pollutant loading processes. However, inconsistency was observed among the subcatchments. The pollutant loading estimates from two subcatchments with similar area were almost identical in rating curve methods, while the difference was significant in SWMM methods. Rating curve method can be a reliable tool to estimate pollutant loading from watershed if it is fully monitored, but it may generate large error during extrapolation to non-monitored area. SWMM is a comprehensive hydrologic model with great diversity that it can incorporate watershed characteristics like land use effects which is not available in rating curve methods. Therefore, it is recommended to use reasonable watershed model rather than rating curve and unit loading methods for the estimation of pollutant loading from watershed

습지-저류지에 의한 하구 담수호 수질개선 효과 예측

윤춘경 ( Yoon Chun Gyeong ),함종화 ( Ham Jong Hwa ) 한국농공학회 2000 韓國農工學會誌 : 전원과 자원 Vol.42 No.5

Investigated was the effectiveness of a constructed wetland system on water quality in Hwa-Ong estuarine reservoir, located in Hwasung-Gun, Kyunggi-Do. Procedures for estimation of pollutant loading from watershed and required area for natural systems, and simulation of corresponding reservoir water quality were reviewed. Generally, simulated reservoir water quality was within the reasonable range, and about 15% of total polder farmland was required to meet the agricultural water quality standards. The model was applied based on the current loading condition without additional treatment systems. Wetland system is an ecologically sound treatment system. Therefore, natural systems can be an alternative measure for water quality improvement in polder projects. The area for natural systems was estimated using literature value which might be acceptable at the planning stage. However, pilot system and its experimental data are requisite for large scale field application. WASP5 was proved to be a useful and versatile model, and its application to estuarine reservoir water quality simulation was thought to be appropriate.

SWMM 과 WASP5 모형을 사용한 하구담수호의 수질 예측

윤춘경,함종화 한국환경농학회 2000 한국환경농학회지 Vol.19 No.3

SWMM and WASP5 were applied for pollutant loading estimate from watershed and reservoir water quality simulation, respectively, to predict estuarine reservoir water quality. Application of natural systems to improve estuarine reservoir water quality was reviewed, and its effect was predicted by WASP5. Study area was the Hwa-Ong reservoir in Hwasung-Gun, Kyonggi-Do. Procedures for estimation of pollutant loading from watershed and simulation of corresponding reservoir water quality were reviewed. In this study, SWMM was proved to be an appropriate watershed model to the nonurban area, and it could evaluate land use effects and many hydrological characteristics of catchment. WASPS is a well known lake water quality model and its application to the estuarine reservoir was proved to be suitable. These models are both dynamic and .the output of SWMM can be linked to the WASP5 with little effort, therefore, use of these models for reservoir hater quality prediction in connection was appropriate. Further efforts to develop more logical and practical measures to predict reservoir water quality are necessary for proper management of estuarine reservoirs.

일개 종합병원 입원환자의 낙상 실태 및 관련요인

양화미,천병철 한국의료QA학회 2009 한국의료질향상학회지 Vol.15 No.2

Background: Toestimate fall incidence rate and associated factorsin inpatients from a generalhospital. Method: The data werecollected from 104 fall incident reportsdeveloped by the patient safety committee in a general hospital in Seoul from 01 January 2007 to 31 December 2008. Information included general characteristicsof patients, factors related to fall, types, places,circumstances and outcomes of fall. Result: The incidence rate of fall, which was 4.4 per 1,000 total dischargedpatientsand 0.5 per 1,000 patientdays, was much lower than that of several hospitals in the United States. The difference may reflect the different incidence reporting systemof each hospital. Fall-pronepatients were, in general, ~65 years of age, had an alert mental status, were ambulatory with some a ssistance, and were dependenton and ambulatory device. High incidence of falls was associated with patients with circulatory disease. The majority of fall event susually occurredin bed orat the bedsidein thepatient's room, and occurred more of tenduring the night than during the day or evening. Risk factors of fall wereuse of drugs (antihypertensive or neuropsychiatric drugs) and environmental factors (e.g., overly highbed height, surrounding objects, inadequate fitnessshoes and slippery floor). Physical injury occurred in 43.3% of fall events, which typically required diagnosis of injuryand treatmentsuchas suturing. Riskfactorsforrepeatedfallswereuseofa neuropsychiatric drug (oddsratio=13.9) and gait disturbance (oddsratio=91.2). Risk factors for fall-related injurywerealert mental status(oddsratio=3.3 timesmore likelyto fall than thosewhoweredrowsyor ina stupor) and general weakness(odds ratio=3.3 times more likelyto fall than thosewhowerenot generally weak). Conclusion : Medicaland nursing staff shouldbe awareof the fall risk factorsof hospitalized patientsand should intensively pursue preventative strategies. Development of fall prevention education based on these resultsis recommended.

魯迅關干國民性

劉春花 서경대학교 인문과학연구소 2000 人文科學硏究 Vol.8 No.-

재가노인의 일상생활동작수행의 의존성과 생활만족에 관한 연구

홍춘실,김현리,이상화 충남대학교 의과대학 지역사회의학연구소 1997 충남의대잡지 Vol.24 No.1

This study was conducted to analyse the correlation between the ADL dependency and life satisfaction. Data were collected from the 102 home resident eldery who have no dementia by cognition test. The age distribution f subjects were 65 years and over The data were collected from January 16th to February 15th, 1997. The instruments used for this study were a survey of general characteristics(10 items), physical function(15 items), life satisfaction(20 items). The data were analysed by using an SPSS program and included percentage, t-test, ANOVA & Pearson correlation coefficient. The result of the study are summarized as follows: 1. The mean of ADL dependency score was 5..912 in a possible range of 15 to 60 when 15 indicates high dependency and 60 incicates low dependency. 2. The mean of life satisfaction score was 20.363 in a possible range of 0 to 40 when 0 indicates low life satisfaction and 50 indicates high life satisfaction. 3. The relationship between ADL dependency and life satisfaction for old people in home proved to be of statistically highly negative correlation(r=-.2553 P=.01). 5. General characteristics related to life satisfaction was educational status, household status, economic status, personality, perception of health(P<0.05). In conclusion, it was identified that ADL dependency is the important variable influencing the life satisfaction of the elderly. Therefore, more efforts are needed to decreased the ADL dependency of the elderly to enhance life satisfaction of the elderly.

교육조직의 구성 성분에 관한 비교 연구

서춘화 원광대학교 대학원 2008 論文集 Vol.40 No.-

The appearance of educational administration is composed by human, physical, financial resources and environments, and the variety components. As these components form mutual relation, they are mobilized to accomplish the educational purpose and the educational organization, which is the concrete essence of the appearance of current educational administration, includes the organization of educational administration and school. In addition, the importance of relationship between social system and educational organization should be acknowledged, also the system of politics, economical, science, technological and so forth and relationship between environmental system and educational organization is very complicated. Furthermore, the environmental system affects establishing target, mobilizing resources, managing organization and other aspects of educational organization and is pressing them. For components that compose the educational organization, C.I. Barnard provided three components that are communication, service or desire of cooperation and common purpose and told the organization can be continued to exist when the effect and balance of outside and inside and efficiency are maintained. H.A. Simon observed administrative organization that is main organization which decides proceedings and supplied five components that are work responsibility, standard establishment of work accomplishment, commandment of authority and influence, communication, education and training. S.P. Robbins considered complication, centralization and formalization as basic components and divided essential factors that decide organizational formation as artificial components and natural components. In a position of human education, the core of education, purpose of education, contents of education, method and process of education are composing elements of educational organization. In this study, basic components of educational organization of crisis approach of S.P. Robbins and composing elements of educational organization in a position of human education are compared.

초등학교 특별보충과정 운영실태 분석 - 부산광역시 초등학교를 중심으로

전화춘,김석우 釜山大學校 敎育硏究所 2006 敎育硏究 Vol.16 No.1

魯迅文學思想之時代背景

劉春花 서경대학교 인문과학연구소 1997 人文科學硏究 Vol.3 No.-

용수 재이용을 위한 소규모 오수처리시설의 UV 소독시설에 관한 연구

윤춘경,정광욱,함종화 建國大學校附設農業資源開發硏究所 2002 農資源開發論集 Vol.24 No.-

Deterministic and probabilistic approaches to the design of ultraviolet disinfection system for water reclamation are reviewed and discussed. The high inactivation of total coliform (TC), fecal coliform (FC) and Escherichia coli (E. coli) by UV disinfection was demonstrated, and the inactivations of TC, FC and E. coli were 97%, 98% and 99%, respectively. Within the range of 0.3∼0.4m Ws/cm, the effect of UV does on the inactivation ratio was not observed. However, in the highest wattage of UV lamp, 39W, the inactivation ratio of TC, FC and E. coli was 100%, regardless of the UV does so the UV density was more effective on inactivation ratio of TC, FC and E. coli rather than UV does. Under the 0.4 mWs/cm and 16W of UV lamp, the effect of dissolved organic matter and turbidity on the inactivations of TC, FC and E. coli could not be observed in this study within the range of 0∼32mg/L and 0-40 NTU, respectively. The effect of suspended solid is Tc, FC and E.coli observed liner equation y=305.03x-3697, y=186.14x-2509.5, y=152.96x-1976.5(r^=0.51, 0.69, 0.80) respectively. Suspended solid is the most important factor for design of the UV disinfection system.