동진강 정읍천 유역 오염부하량 평가

이경보,김종천,박지혜,이덕배,김종구 한국환경농학회 2004 한국환경농학회지 Vol.23 No.1

하천 수질관리 대안을 제시하고자 동진강에 영향을 가장 크게 미치는 정읍천을 대상으로 2002년 1월부터 2003년 12월까지 점 및 비점 오염원으로부터 수질오염물질의 부하량, 유출 경로 등을 평가하였다. 계절별 수질 변화는 pH 범위가 6.87∼7.53으로 봄의 pH 범위가 컸으 며, EC 농도는 정읍천 중류가 높았으며, 상류유역은 83∼95㎲/㎝ 범위를 나타냈고, 계절별로 가을에 517㎲/㎝로 가장 높았다. BOD의 농도는 상류유역에서 0.61∼1.27 ㎎/L로 Ⅰ급수 수 질은 나타내었으나, 중류와 하류에서는 Ⅲ등급 수준이었다. T-N의 농도는 정읍천 중류 유 역이 6.10∼10.84㎎/L로 가장 높았고, T-P의 농도는 타오염물질에 비해 농도의 편차가 컸으 며, 특히 중류에서 T-P의 농도가 0.41∼0.98 ㎎/L로 높았다. BOD의 배출부하량은 J4 유역에서 553 ㎎/day로 가장 많았고 T-N 발생부화량은 가축, 인 구, 토지이용, 산업의 순으로 컸으며, T-N 배출부하량은 인구 및 산업에 의한 것은 J4 유역, 가축과 토지이용에 의한 부하량은 J5, J6유역에서 높았다. T-N의 유달부하량은 하류 유역에 서 높았으며, T-P의 유달 부하량은 BOD, T-N에 비하여 유달부하량이 낮았고 유달율은 6∼38% 범위를 나타냈다. The influence of pollutant loads on the water quality in Jeongeupcheon of Dongjin river was evaluated from Jan. 2002 to Dec. 2003 for two years. The range of pH in water was 6.87-753. The EC level in upstream ranged from 83 to 95 us/cm with the highest value in autumn. The BOD level in upstream ranged from 0.61 to 1.27 ㎎/L, which would be Ⅰ grade according to water quality criteia by Ministry of Environment, but that in downstream was Ⅲ grade. The average T-N level in midstream range from 6.10 to 10.84㎎/L which was the highest values throughout the stretch of the river. The average T-P levels ranged from 0.41mg to 0.98㎎/L. Jeongeupcheon was suitable for the agricultural usage based upon one year analysis of river water quality. The effluent loads of BOD was high in midstream(J4) with 553 ㎏/day. The major sources of T-N loads were livestock, population, land use, and industry in order. The effluent loads of T-N was high in J4 by population and industry while that of T-N was high in J5 and J6 by livestock and land use. The delivered loads of T-N was high in downstream. The delivered loads of T-P was low as compared with those of BOD and T-N. The delivery ration of T-N ranged from 6 to 38%.

볼링후 발생한 전골간신경 증후군-증례 보고-

김혜경,이희숙,박준명,정광익,박동식 大韓再活醫學會 1998 Annals of Rehabilitation Medicine Vol.22 No.4

자료포락분석을 통한 직업재활시설의 효율성 분석

이혜경,나운환 한국장애인고용촉진공단 고용개발원 2009 장애와 고용 Vol.19 No.2

20여년의 역사를 지닌 직업재활시설은 중증장애인을 위한 고용과 훈련의 장으로써 역할을 해오고 있으나, 직업재활시설 운영의 효율성에 대하여 실제적으로 연구된 적이 거의 없다. 지금까지 의 직업재활시설 운영에 대한 평가는 단순지표체계에 의한 평가로 정부 예산의 타당성이나 시설 운영에 바람직한 운영방향을 제시하는데에 제한이 있고, 시설 운영의 효율성에 대한 정확한 분석을 얻기 어렵다는 한계가 있다. 따라서 본 연구에서는 자료포락분석을 활용하여 직업재활시설의 상대적 효율성 분석을 통해 직업재활시설이 보다 효율적으로 운영될 수 있는 방안을 제시하고자 하였다. 연구결과 첫째, 종사자 수가 많은 시설일수록 근로장애인들의 월평균 임금이 높으며, 직업재활과정에 따른 사업을 수행하는 시설일수록 재활프로그램 실적, 취업알선 및 취업실적 등의 전반적 실적도 높았으나 상담 및 평가실적과 재활프로그램의 실적이 높을수록 근로장애인의 월평균 임금액은 줄어드는 음의 상관관계가 있는 것으로 분석되어, 생산활동 보다 상담과 평가 등의 재활훈련과 프로그램에 시간을 많이 투자할수록 생산력이 떨어지는 것으로 분석되었다. 둘째, 개별 직업재활시설 효율성 분석 결과 효율적인 시설이 더 많았으며, 비효율적인 시설의 공통점은 투입요인이 산출요인에 비하여 과잉공급되고 있기 때문인 것으로 나타나, 업재활시설이 보다 효율적으로 운영되기 위한 구체적 방안을 제시하였다. This study was designed to present efficient operational directions and the related tasks for vocational rehabilitation facilities via an analysis of their relative efficiency. In order to achieve the objectives of this study, first it was derived the efficiency factors by analyzing the operational status of the facilities. Then, it was analyzed the co-relationship among the factors and the efficiency of the facilities by using the DEA (Data Envelopment Analysis) method. The study outcome is summarized as follows: First, the input and output variable factors revealed that those facilities that perform more counseling or assessment activities have more rehabilitation programs. The vocational rehabilitation facilities perform their business operations according to a series of vocational rehabilitation service systems. However, it was found that facilities which have more rehabilitation programs pay less monthly average wages to the persons with disabilities, indicating that there exists a negative co-relationship between the two factors. Second, eleven out eighteen DMUs were classified as efficient vocational rehabilitation facilities through analysis of the efficiency of individual facilities. It was revealed that the common causes for their inefficiency were excessive input factors coupled with insufficient output factors. The variable factors that most affect the efficiency of vocational rehabilitation facilities are not their input budget or number of employees but their insufficient efforts and the lack understanding of their efficiency. Therefore, the vocational rehabilitation facilities cannot achieve efficiency simply on the basis of government input or the number of employees. Indeed, they need to strive to enhance their efficiency or output factors with limited input factors. nalysis(DEA)

우리나라 암등록 사업자료의 충실성에 관한 연구

이태용,조혜경,김광환 한국보건통계학회 2003 한국보건정보통계학회지 Vol.28 No.2

This research analyzed and compared centrally-required items and individual hospitals-developed items for cancer registration, as well as items for regional cancer registration projects. We then suggested additional item for standardization and improvement measures. We worked with a total of 161 medical agencies consisting of 118 general hospitals and 43 specialized general hospitals which take part in nation wide cancer registration statistics in Korea. A thesis submitted to the Committee of Graduate School of Public Health, Chungnam National University in partial fulfillment of the requirements for the degree of Master of Public Health conferred in August 2002. The following are the findings. First, the items of family disease history, smoking history, drinking history and favorite food surveyed only 0.6%-2.5% of the entire agencies, 2.3%-7.0% of the specialized general hospitals and 0.0%-0.8% of the general hospitals. Second, the items of TNM staging system, summary staging, and sites of metastasis investigated only 3.7%-5.0% of the total 161 agencies, 14.0% of the specialized general hospitals and 0.0%-1.7% of the general hospitals. Third, the items related to death and treatment investigated less than 2.5% of the entire hospitals, only 0.0%-7.0% of the specialized general hospitals and general hospitals not investigated. Finally, the items related to discharge and hospital utilization surveyed less than 4.3% of the entire hospitals, only 2.3%-11.6% of the specialized general hospitals and only 0.0%-1.7% of the general hospitals. Conclusively, the most hospitals missed important items. For that reason, investigation of valuable data insufficience. Therefore, improvement of nationwide cancer registration be caused by calculation of hospital, activated medical record library. The survey of cancer patients and medical treatment should be more efficiently and effectively conducted.

Stroke에서 감압적 개두술, 정위적 조직 생검과 병리적 소견 고찰 : 중증 제뇌탈출을 동반한 초급성 뇌경색과 신경교종 내 출혈 감별 To differentiate the Herniated hyperacute Cerebral Infarction from the Glioma bleeding

이주용,조준,박호권,장상근,문창택,한혜승,이경룡 건국대학교 의과학연구소 2004 건국의과학학술지 Vol.14 No.-

The authors in this manuscript aimed to provide a practical importance of the differential diagnosis of intracranial brain tumor with emphasis on non-neoplastic abnormalities such as cytotoxic edema of the penumbra zone in strokes. The well known SOLs are cerebral ischemic, inflammatory and dysplastic lesions, which intraaxially imitate glioma and other neurogenic tumors. Brain tumor is the one of common intracranial space-occupying lesions (SOLs) on the diagnostic images. However, many non-neoplastic lesions may be indistinguishable from tumors. Especially, early mortality used to be caused by space-occupying hyperacute ischemic stroke, brain edema and herniations. For the retrospective analysis, the authors reviewed the patient charts, the emergency brain Computerized Tomography (CT), magnetic resonance imaging (MRI), clinical stroke history. From Jan. 2003 to Dec. 2003, we managed total 61 acute strokes in ICU. Even though we operated six decompressive craniotomies, nine stereotactic craniotomies including two procedures of brain biopsy and three extraventricular drainage procedures, three patients (4.91%) were finally expired out from the induced herniation and medullary failure by those aggressive strokes. 43 patients (70.5%) were recovered good from stroke attack. 15 patients (24.6%) were improved with residual neurologic deficits. In conclusion, aside from growing efforts of the radiologist to make the early diagnostic impression, the authors suggest that urgent neurosurgical explorations with the pathologic diagnostic decision should be requested to decrease the fatality.

족제비눈물버섯 (Psathyrella candolleana) 등 한국산 담자균류의 Lymphoblast 생성자극 효과

장혜진,이지선,정경수 충남대학교 약학대학 의약품개발연구소 2002 藥學論文集 Vol.17 No.-

As an effort to find out potent antitumor immunomodulatory agents from Korean basidiomycetes, the protein-polysaccharide fractions were prepared from ten mushrooms - Boletus fuscopunctatus, Collybia dryophila, Coriolus unicolor, Crepidotus sp., Galerina fasciculata. Lycoperdon pyriforme, Marasmius maximus, Psathyrella candolleana, Russula albonigra and subjected to a flow cytometrical analysis for their in vitro lymphoblastogenic activity. Among them, P. candolleana showed the most potent lymphoblastogenic effect on the BALB/c mouse splenic lymphocytes. On subtype analysis, P. candolleana was found to exert its lymphoblastogenic effect mostly on non T cells.

일차의료에 내원한 성인에서 대사증후군의 유병률 및 관련 요인에 대한 연구

박혜순,신호철,김병성,이가영,최환석,신정아,남윤덕,배상필,천경수 대한비만학회 2003 The Korean journal of obesity Vol.12 No.2

연구배경: 심혈관 질환은 치근 국내에서 그 발생률과 유병률이 급증하여 점점 중요한 국민 건강 문제로 대두되고 있다. 2001년 NCEP ATP Ⅲ에서는 대사증후군에 대해 임상적으로 손쉽게 적용할 수 있는 기준을 제시하면서 심혈관 질환의 주 관리 차상으로 취급하였다. 본 연구에서는 일차의료에서 대사증후군의 유병률을 파악하고, 대사증후군과 관련된 요인을 규명하여 한국인에게 적절한 대사증후군 관리전략을 개발하고자 하였다. 방법: 전국 9개 병·의원 가정의학과에 내원한 20세 이상 80세 미만 성인에서 건강 문제와 무관하게 연속적 조사를 시행하여 총2,134명이 연구에 참여하였다. 대사증후군에 대해서 복부비만은 남자 ≥ 90cm, 여자 ≥ 80 cm으로 하였고 다른 위험인자들은 NCEP ATP Ⅲ의 기준에 따라 정의하였다. 신체 계측, 심혈관 위험인자를 측정하고 생활 습관을 조사하여 대사증후군의 유병률과 관련 요인을 파악하였다. 결과: 일차의료에 내원한 성인에서 대사증루군의 유병률은 남자에서 31.3%, 여자에서 29.5%로 나타났으며, 연령이 증가할수록, 비만도가 증가할수록 대사증후군의 유병률이 높아지는 경향을 나타냈다. 남자에서는 연령, 고소득, 비만, 과다 음주. 과다 흡연이 대사증후군의 관련 요인으로, 여자에서는 연령, 무직, 비만, 심혈관 질환의 가족력, 중등도의 스트레스가 관련 요인으로 나타났다. 결론: 대사증후군은 일차의료에 내원하는 성인 중 비교적 흔하게 나타나는 건강 문제로 약 30%의 유병률을 보였다. 일차의료에서 무증상 성인에게도 허리둘레 측정, 심혈관 위험인자 검사 등 대사증루군의선별검사에 의한 조기 발견과 예방적 차원의 관리가 필요하다고 하겠다 Backgroud: Cardiovascular disease is becoming an important national health issue since its recent increase in incidence and mortality. Despite the significant increase in mortality rate of cardio-vascular disease in Korea, there have been no specific studies concerning metabolic syndrome. The aim of this study was to assess the prevalence of metabolic syndrome and to evaluate the associated factors among adults who visited the primary care. Methods: A total of 2,134 subjects aged 20-79y were recruited from nine primary care clinic. The metabolic syndrome was defined by NCEP ATPⅢ criteria, however, abdominal obesity was assessed by ≥90cm in men and ≥80 cm in women. Anthro-pometric variables and cardiovascular risk factors were measured, and lifestyle factors were assessed through a questionnaire. Results: The prevalence of metabolic syndrome was 31.3% and 29.5% in men and women, respectively. The risk factors associated with metabolic syndrome, in common for both genders, were found to be age, and obesity. Excessive alcohol intake, and heavy smoking were also found to be risk factors of metabolic syndrome in men whereas moderate stress and family history of cardiovascular disease served as risk factors in women. For both genders, greater increase in body weight correlated with higher risk of metabolic syndrome. Conclusion: The prevalence of metabolic syndrome is presumed to be high considering the fact that it is commonly encountered in primary care, therefore a screening program for prevention and management of metabolic syndrome is required.

연산 증폭기 (TL494) 를 이용한 DC/DC 승압 컨버터 제어 시스템 설계

정구종,이혜연,문경주,정유석,이준영,손영익 明知大學校 産業技術硏究所 2009 産業技術硏究所論文集 Vol.28 No.-

A simple control system using an op Amp (TL494) is presented for a DC/DC boost converter. The DC/DC boost converters have many industrial applications including renewable energy sources and hybrid automobiles. The problem of regulating the output voltage in the presence of load variation has been a research subject of interest for many years. After computer simulations with SimPower system of Matlab Simulink, we have developed the converter system in university laboratory according to the design specifications. Since the chip TL494 has both op Amp and PWM comparator even beginners can easily develop the control system. Experimental results show that the proposed system has some robustness with respect to the load variation.

방사선 치료를 받는 암 환자들의 사회적 지지와 삶의 질과의 관계

정주희,류소연,윤혜은,남택근,오윤경,안현옥,박계남,이영선 朝鮮大學校 附設 醫學硏究所 2002 The Medical Journal of Chosun University Vol.27 No.2

Objective : This study was performed to investigate the relationship between social support and quality of life among cancer patients receiving radiation therapy. Matehals and Methods : The data were collected from 98 patients, who were receiving radiation therapy at two university hospitals located in GwangUJu, used by structured questionnaire. For statistical analyses of the association between quality of life and various characteristics, data were analyzed using t-test, ANOVA, Pearson 's correlation, and multiple regression analysis. Results: 1. There were 56(57.1%) males and 42(42.9%) females. Age ranged from 21 to 82 years. The primary sites of cancer were gastrointestinal tract (24.5%), lung (23.5%), breast (21.4%), and head and neck (11.2%) in order. 2. The mean scores of social, family, and medical support were 4.30 0.58, 4.49 0.78, 4.11 0.65, respectively. The score of quality of life was 5.83 1.63 (range: 1.95 ~ 9.05). 3. An analysis of the association between several factors of patients and quality of life showed that the statistically significant factors were age, the presence of distant metastasis, family support, medical support and social support. 4. As a result of the multiple regression analysis, only social support was significant (β=0.932, P=0.02) with quality of life, but age and presence of distant metastasis were not significant. Conclusion : This suggests that quality of life in cancer patients could be improved by strengthening the social support which consists of family and medical support. Further study would be necessary to evaluate separately several aspects of quality of life among cancer patients.

초등학교 자녀의 구강보건에 관한 학부모의 인식 및 행동

한수진,문혁수,정재연,김영경,이병진,김은경,정혜련 韓國學校保健學會 2001 韓國學校保健學會誌 Vol.14 No.1

The purpose of this study was to collect basic data for the development of oral health education program of parents and to encourage their actual interest and participation in school oral health program. The authors surveyed parents' awareness and behaviors about the oral health of their children. The subjects in this study were 193 parents of elementary school children in Seoul. The collected data were analyzed, the obtained results were as follows: 1. Thirty-five percent of the parents investigated paid a regular visit to a dental clinic. The must common tooth brushing time among them was after dinner, the second was after breakfast, and this was followed by before bedtime and before breakfast. 2. Ninety-four percent of the parents responded that prevention is necessary, 92.2% had a plan to visit a dental clinic to prevent dental caries, and 60.1% experienced receiving pit and fissure sealants. Ninety-seven percent responded that they did check their children's dental caries. 54.9% chocked their children's oral status after tooth brushing. The parents who visit a dental clinic on a regular basis were more likely to check their children's teeth after tooth brushing than those who don't(P<0.05). 3. Eighty eight percent of respondents wanted to keep the fluoride mouth rinse program. 4. It is recommended that an oral health education program be developed for parents to visit dental clinics on a regular basis, to educate as to the right tooth brushing time, and to check out their children's oral status after tooth blushing.