팔당호의 생태학적 수질환경의 변화와 미생물 분포

허성남,민경희,유재근,최순영 숙명여자대학교 자연과학연구소 1999 자연과학논문집 Vol.- No.10

팔당호의 생태학적 환경요인의 계절적인 변화를 분석하므로서 이것으로 인한 식물성 플랑크톤의 연관성을 고찰과 함께 오염과정을 파악하여 수질오염의 예방의 기초자료를 얻고자 본 실험을 수행하였다. 1994년 4월부터 1995년 10월까지 계절별로 3개 지점에서 시료를 채취하여 표층부와 저층부의 수질을 분석하였다 용존산소(DO)와 pH는 각각 7.0-11.6 ㎎/ℓ와 6.9-8.9의 범위이었으며 COD와 BOD농도는 각각 1.6-4.8 ㎎/ℓ와 0.8-2.9 ㎎/ℓ이었으며,SS는 1.8-8.6 ㎎/ℓ의 농도차를 보여 주었다. 또한 NH₃-N와 PO₄-P의 농도는 각각 0.161-0.478 ㎎/ℓ와 0.003-0.073 ㎎/ℓ이었다. 표층의 chlorophyll a의 농도는 낮게는 북한강 유입부위인 12.3 ㎎/ℓ로부터 가장 높은 경안천 유입부위 23.8 ㎎/ℓ의 범위를 보여주고 있다. pH,전도도, COD, BOD, SS ,총인, chlorophyll a의 농도는 하계절에 가장 높았으며 이 결과로 미루어 보아 하계절에는 하천에 오염물질이 가장 많이 유입되는 것으로 추정된다. Station별로 조사한 결과 이들의 농도는 경안천 하류인 St. 3가 남한강 하류인 St. 2이나 댐지역의 St. 4보다 높은 결과를 보여 주었으므로 경안천 상류에서 오염원이 가장 많이 유입되는 것으로 추정된다. 아울러 종속영양세균의 분포도 경안천이 다른 지역보다 가장 높게 나타났다. Seasonal variation of water quality was examined in the reservoir, lake Paldang on Han River, the inlet stations from three rivers, North Han River, South Han liver, Kyung-An stream, and the station of dam area of the lake. Water samples were collected bimonthly from surface and bottom layers at four different stations of the lake Paldang from April 1993 to August 1994. With respect to the seasonal variation, pH, conductivity, and concentrations of COD, BOD, SS, total phosphorus, and chlorophyll a were higher in summer compared with those of autumn or other seasons, while concentrations of DO, NH₃-N, and PO₄-P were increased in winter. Concentrations of COD, BOD, chlorophyll a, total nitrogen and phosphorus were the highest at the station of Kyung-An stream rather than those of other three stations. The average concentrations of chlorophyll a surface water were from 12.3 ㎎/ℓ at North Han River to 23.8 ㎎/ℓ at Kyung-An stream. Heterotrophic bacterial distribution showed higher at the station of Kyung-An steam than those of South Han River and the dam station of the lake.

정상체중군과 과다체중군 산업장 중간관리자의 건강증진 행위에 관한 비교연구

김정남(Kim Chung Nam),박경민(Park Kyung Min),류미경(Ryu Mi Kyung),장희정(Jang Hee Jung) 계명대학교 간호과학연구소 2001 계명간호과학 Vol.5 No.1

The purpose of this study was to identify and compare Health Promoting Behavior and its affecting factors between Normal and Over weight industrial middle manager. The subjects were 163 workers employed in factories in Taegu and Kyung-book were convenient sampling data the period for May 22th-26th, 2000 through self report methodby structured questionnaires. Collected data were analyzed by t, x2, Kendal tau, Pearson correlation, Stepwise Multiple Regression. The results of this study were as follows. 1. There were a significant difference in shift pattern(x2=7.89, P=0.005) and career. (x2=12.99, P=0.005) between normal weight and overweight group. 2. The average score of performance in health promoting behavior among overweight group(2.55) was higher than that of normal weight group(2.46), but not significant. 3. The average score of health status in overweight group(3.07) was lower than that of normal weight group(3.21), but not significant. 4. The average score of self-efficacy in overweight group(3.63) was significant lower than that of normal group(3.71). 5. The average score of the perceived barrier of in overweight group(2.44) was significant higher than that of normal group(2.24). 6. Health promoting behaviors in overweight group was significantly correlated with health status(r=.384, P<.05), health Concept(r= 458, P<.01) self-efficacy ( r=352, P< 01), perceived benefit(r=.386, P< .05), perceived barrier(r= -245, P< .05) Health promoting behavior in normal weight group was significantly correlated with health concept( r= .307, P< .050 and perceived benefit. 7. In consideration of variables that have an influence on Health promoting behavior among Normal weight group, health concept and perceived benefit account for 28.8% of health promoting behavior. In overweight group. The perceived benefit account for 13.7% of health promoting behavior. The suggestions are as follows on the basis of the results of this study. 1. It is required to develop health promoting program to improve health promoting behavior. In addition, there are special demands on developing nursing strategies for health promoting behavior of overweight industrial supervisors. 2. It is necessary to support exercise facility in occupational field for improving supervisor's health promoting behavior.

남자 고등학생의 흡연행위군별 성격특성

류미경,박경민,김정남,장은진,이충원,김대현,정철호 대한보건협회 2000 대한보건연구 Vol.26 No.2

The purpose of this study is to investigate the differences of personality characteristics using Minnesota Multiphasic Personality Inventory(MMPI) by current-smokers, ex-smokers and non-smokers among male high school students. The subjects for this study were 448 first and second year male students at general and vocational high school in Taegu and Kyung-Buk Province. Data was collected from August 25 to September 15, 1999. The instrument used in this study was the Validity Scale and the Clinical Scale, the Ego Strength Scale and the Personality Disorder Scale of the MMPI. The data was analysed by using the SPSS Program which included frequency, percentage, x^2-test, ANOVA, scheffe test and stepwise discriminant analysis. The results obtained from this study were as follows. (1) There were significant differences by smoking behavior groups in parents who smoke and who did not smoke(p=.044), intimate-friends who smoke and not(p=.000), academic record(p=.000), satisfaction with school life(p=.020), effect of smoking on health(p=.000), drinking experience(p=.000), drug-use experience(p=.007) and experience into No minors district(p=.000). (2) T-scores of subjects in this study were in the range of 40-60. Psychopathic Deviate Scale(Pd), Paranoid Scale(Pa), Psychasthenia Scale(Pt), Schizophrenia Scale(Sc), Histrionic Personality Disorder Scale(HST) and Anti-social Personality Disorder Scale(ANT) showed higher T-scores than other Clinical and Personality Disorder Scale. (3) The results of post-hoc in Validity Scale and Clinical Scale are as follows: T-scores of current-smokers were higher than that of ex-smokers and non-smokers in Hysteria Scale(Hy), Psychopathic Deviate Scale(Pd), Paranoid Scale(Pa), Psychasthenia Scale(Pt), Schizophrenia Scale(Sc) and Hypomania Scale(Ma); T-scores of non-smokers were higher than that of ex-smokers in Depression Scale(D), and T-scores of non-smokers were higher than that of current-smokers and ex-smokers in Social Introversion Scale(Si). (4) In Ego Strength Scale and Personality Disorder Scale, T-scores of ex-smokers were higher than those of current-smokers. In Histrionic Personality Disorder Scale(HST) and Narcissistic Personality Disorder Scale(NAR), T-scores of current smokers and ex-smokers were higher than those of non-smokers. In Borderline Personality Disorder Scale(BDL), Anti-social Personality Disorder Scale(ANT) and Paranoid Personality Disorder Scale(PAR), T-scores of current-smokers were higher than those of ex-smokers and non-smokers. In Schizotypal Personality Disorder Scale(STY), T-scores of current smokers were higher than that of ex-smokers. In Avoidant Personality Disorder Scale(AVD), T-scores of non-smokers were higher than those of current-smokers and ex-smokers. (5) As a result of stepwise discriminant analysis of the MMPI Scale by smoking behavior, a discrimination rate of the F Scale, Hypomania Scale(Ma), Social Introversion Scale(Si) and Psychopathic Deviate Scale(Pd) out of the Validity Scale and Clinical Scale was 51.1%, and that of Anti-social Personality Disorder Scale(ANT) and Avoidant Personality Disorder Scale(AVD) out of the Personality Disorder Scale was 51.6%, both of the rates were statistically significant. The Above results suggested that smoking by high school students is related with personality characteristics as well as external factors like family, school and their social environment. So school health professionals who are in charge of school health, should operate various smoking prevention or prohibition programs, taking into account personality characteristics. It might have an effect on smoking prevention and the reduction of the smoking rate.

傾斜地 主居地域의 親環境的 開發方案에 관한 硏究 : 綠地確保를 中心으로 Focuased on Preparation of Green Space

柳應敎,朴京男 全北大學校 附設 都市및環境硏究所 1996 都市 및 環境硏究 Vol.11 No.1

This study has been prepared to security of green space in hill housing area in the view of environmentally sound and sustainable development. In this view, this paper focuses the urban park in old town, Jeon-ju city. And theoretical base is ecological city and ecological architecture. The results are as followings ; First, green security plan must be based on the site condition. Second, it must be considered to political minimal support and voluntary participation of residents. Third, it need sustainable security and political control. Forth, in the future, it will be needed apply of variety technology.

일부지역 대학생의 삶의 질에 영향을 미치는 제 요인

류미경,박경민,김정남 대한보건협회 1999 대한보건연구 Vol.25 No.1

본 연구는 일개 대학생을 대상으로 학교 환경 만족도, 학교내·외 안전에 대한 인식도, 학생활동참여도, 스트레스 관리, 건전한 건강실천행위 등 대학생의 삶의 질에 영향을 끼치는 환경요인과 건강관련 요인을 분석하여 대학생의 건강지향적 삶을 향상시키기 위한 프로그램 개발시 기초자료를 제시하고자 한다. 대구시에 소재하는 K대학교의 대학생 중입학 후 한학기 이상 학교생활을 경험한 대학생 500명을 대상으로 1998년 10윌 26일부터 11월 7일까지 2주동안 설문지를 배부하여 자료수집을 하였다. 연구도구로 조사대상 대학의 학교내 환경만족도 15문항(강의실만족도 6문항, 도서실 만족도 6문항, 교내 환경만족도3문항), 교·내외 안전에 대한 인식도 2문항, 교내 및 학교 주변 사고에 대한 직접경험 및 간접경험 4문항(도난사고, 폭력사고, 성폭력사고, 교통사고), 학생활동 참여도 3문항(동아리 활동, 총학생회 활동, 학생회 활동)을 조사하였으며 건강 실천 행위는 Breslow index를 이용하였다. 스트레스 관리는 Walker 등이(1987)이 개발한 건강증진생활양식(Health Promoting LifeStyle Profile)을 서(1995)가 수정보완한 것으로 대학생에게 적합한 스트레스 관리의 7문항을 신정하여 이용했으며, 삶의 질은 노(1988)가 개발한 도구를 이용하여, 서술통계방법, Pearson's correlation coefficient, stepwise multiple regression으로 분석한 결과 다음과 같은 결론을 얻었다. 학교환경에 대한 만족도는 평균점 2.72(SD=.54)로 낮은 수준이었다. 하위영역별 평균점은 강의실 만족도 2.36(SD=.55), 도서실 만족도 2.84(SD=.67), 교내 환경 만족도 2.96(SD=.54)이었다. 교내·외 안전에 대한 인식도는 교내안전인식도가 2.60으로 학교주변안전인식도 2.23보다 높게 나타났다. 교내 혹은 학교 주변에서 사고를 경험한 비율은 도난사고의 경험율이 가장 높게 나왔으며, 폭력사고와 성폭력사고도 자신이 경험한 경우보다 타인의 경험을 들었다는 경우가 비율이 높게 나왔다. 건강 실천 행위는 Breslow Index가 0∼3점인 군이 54.3%이며 4∼5인 군이 42.7%이며 6∼7인 군이 3.0%를 차지하여 97.0%가 나쁜 건강행위를 하는 것으로 나타났다. 스트레스 관리의 항목에서 전체적인 스트레스 관리의 평균점은 2.27이며, 하위영역으로 스트레스원이 무엇인가를 아는가는 평균점이 2.92이며, 스트레스를 해소하기 위해 특별한 방법(예: 이완요법)을 이용하는가는 평균점이 1.64로 가장 낮았다. 이는 자신들의 스트레스원에 대해 인지는 하고 있으나 올바른 스트레스 관리를 못하고 있음을 알 수 있다. 대학생의 영역별 삶의 질은 가족관계가 평균점3.49로 가장 높았으며 이웃관계, 자아존중감, 정서상태, 신체상태와 기능, 경제생활 순으로 나타났다. 삶의 질에 영향을 주는 요인을 단계적 중다회귀분석으로 분석한 결과, 스트레스 관리, 성별, 학교내 환경만족도, 보건학 수강유무, 건강실천행위가 삶의 질을 21.0% 설명하였다. 이상의 연구 결과를 기반으로 다음과 같은 제언을 한다. 1. 대학생의 특성, 환경, 복지에 적합한 구조화된 삶의 질 측정도구의 개발이 필요하다. 2. 대학생 올바른 건강실천행위와 스트레스 관리를 위해서 교내 보건교과목의 수강기회를 늘리고 건강증진프로그램과 스트레스 관리 프로그램의 도입과 강화가 필요하다. The purpose of this study, using a college student as the subject of study, are to analyse the satisfaction with the school circumstances, recognition about the security in the school and outside the campus, participation in school activites, managing the stress and practicing the sound health behavior, and to provide a basic material for programs which improve the health life quality of students. A Questionair test was done to K University students who have attended the school at leas! for a semester over two weeks (1998. 10.26-11.7). The Questionair includes 15 questions on the satisfaction with school surroundings (6 on classroom, 6 on library and 3 on circumstances in the school), 2 questions on the recognition about security on the campus and outside the school, 4 questions on direct and indirect experiences (thief, violences, sexual violence, traffic accident), 3 questions on participating in student activities(club activities, student's association). Breslow Index was used to check health practicing behavior. For the management of stress, out of Health Promoting Life style Profile, originally developed by Walk et al, and modified by Seo(1995), 7 items appropriate for student were chosen and Quality of life Scale developed by Noe(1988) was used to check Quality of life of college student. Next step, I used them to get Descriptive statistics, Pearson's correlation coefficient, stepwise multiple regression. The results are as follows: The satisfaction with school circumstances is low, whose average is 2.72 (SD=.54), And the satisfaction average on classroom is 2.36(SD=.55), on library is 2.84 (SD=.67), on circumstance in the school is 2.96 (SD=.54), The recognition about security on the campus is 2.60, higher than 2.23 outside the school. Theft experience is the highest. In the case of violence and sexual violence, indirect experience rate is higher than the direct one. For health practice behavior, Breslow index 0-3 group accounts for 54.3%, 4-5 group 42.7%, and 6-7 group 3.0%, which means 97.0% practices unhealthy behavior. For the management of stress, total stress managing average is 2.27; average on knowing the origin of stress is 2.92, and average on using the way of solving stress is the lowest 1.64. It can be inferred that they recognize the origin of stress but don't know how to deal with it. For the Quality of Life, the average on family relationship is the highest 3.49 and neighborhood relationship, self esteem, emotional conditions, physical conditions and function and economy life in order. When analysing the factors affecting life quality through 'stepwise multiple regression' method, stress management, sex, satisfaction with the circumstances in the school, taking health class or not, and practicing health behavior account for 21.0%. Accordingly, 1. Developing the organized tool to measure quality of life is needed, taking the characteristics of student, circumstances and welfare into consideration. 2. To establish the sound health practice behavior, there is urgent in need that the opportunity taking health subject should be increased, and health program and stress management program should be introduced and reinforced.

TE?₁₁모드 공진기·대역통과 여파기의 설계 및 제작

류남영,이정해,홍경희 弘益大學校 科學基術硏究所 1999 科學技術硏究論文集 Vol.10 No.2

A TE?? mode cavity filter was designed using mode matching technique and generalized bandpass filter circuit model. For the accurate calculation of filter characteristics, a mode matching algorithm has been developed. The angle between the coupling irises, the iris dimension, and the aspect ratio of cavity are filter design parameters. Isolation, ripple and bandwidth in the passband, and spurious frequency responses can be controlled with the above parameters, respectively. For the efficient filter design, a proper equivalent circuit for iris was derived and the length of cavities was compensated. To reduce the difference in insertion loss and bandwidth, the equations for compensation were found with curve fitting for data obtained with HFSS. The experimental result shows an excellent agreement with the calculated result.

폐석재와 석분을 사용한 식생블럭 제품 개발

성찬용,류능환,연규석,윤준노,김영익,남기성,노경희,박일순 강원대학교 부설 석재복합신소재 제품연구센터 2002 석재연 논문집 Vol.7 No.-

본 연구는 폐석재와 석분을 사용하여 친환경적인 식생블럭 제품을 개발하기 위하여 폐석재의 입경과 석분의 첨가량을 각각 3종류씩 총 9종류의 식생블럭에 대하여 단위중량, 공극율, 투수량, 압축강도, 쪼갬인장강도, 휨강도, 내산성, 알카리농도에 대하여 구명하였다. 단위중량, 강도, 내산성은 골재의 입경이 작을수록 석분의 혼입량이 많을수록 크게 나타났으며, 공극율과 투수량은 작게 나타났다. 강도는 중성화 처리 유무에 따라 4∼5% 정도의 미소한 차이가 나타났다. 알카리 농도는 중성화 약품처리, 수중용출, 야외폭로 순으로 효과가 크게 나타났으며, 이는 식생블럭의 중성화 방법 선택에 매우 중요한 내용이라 할 수 있다. 또한, 식생상태는 공극율과 골재의 입경이 큰 식생블럭이 생육에 유리한 것으로 나타났다. This study was performed to develop the environment-friendly plantable block and to evaluate unit weight, void ratio, permeability, strength, acid-resistance and value of pH by the change of the grading of waste stone and the addition amount of stone dust. The unit weight, strength, acid-resistance is increased with small size of waste stone with increase of the addition amount of stone dust. But, the void ratio and permeability is decreased. The strength of neutral plantable block is decreased approximately 4-5% than that of the normal plantable block. The decreased effect of pH increased in order to neutral treatment, underwater leaching and field exposure. It is very important contents in neutral method selection of plantable block. Also, the planting state is grown rapidly with increase of the void ratio and of the waste stone size, approximately.

수수로부터 아플라톡신B₁ 정량분석에 관한 연구

정향동,원옥남,구경림,류성렬 한국공업화학회 2003 응용화학 Vol.7 No.2

Aflatoxin B₁was known to have the strongest poisonous character among Aflatoxn compounds. To search the production of Aflatoxin B₁according to the change of temperature and relative humidity, millet incubated with Aspergillus flavus KCCM 35078 was incubated at 20℃, 25℃, 30℃, 25℃ and at relative humidity 50%, 60%, 70% and for incubation time 72, 96, 120, 144, 168, 192 hours. Production of Aflatoxin B₁shows that the highest production appeared at 25℃ and its relative humidity 70%. The result that was quantitatively analyzed by using HPLC was 23.35ppm, and by using fluorescence detector was 23.50ppm Production of Aflatoxin B₁shows that the lowed production appeared at 20℃ and its relative humidity 50%. The result that was Quantitatively analyzed by using HPLC was 6,26ppm, and by using fluorescence detector was 6.33ppm The structure of Aflatoxin B₁was identify with authentic sample by using instrumental analysis methods of MS, H-NMR, FT-IR, respectively.

실내 기후동에서 개인형 국소냉방 장치의 기류 및 온도 분포해석

엄태인,장은숙,경남호,신기식,문승현,전영남,류창국 한밭대학교 생산기반기술연구소 2002 생산기반기술연구소 논문집 Vol.2 No.1

Numerical simulation is performed by the commercial code FLUENT for individual air condition system to calculate the velocity and temperature profiles around worker in climate room. The main calculation region is the space of ㄱ shape between wall and worker in the individual air condition system. The fresh air is emitted from 3 inlet attached on the right, left and center wall. Because the comfort of worker is closely related with the velocity and temperature of wind, these data are key role for design of the individual air condition system. This work is previous study for evaluation of thermal comfort of workers in room without much experiments according to metabolism and heat emission of human body. Numerical simulation results are as followings, 1. There is an possibility of the thermal comfort of worker is gotten worse due to the presence of dramatic change of wind velocity around worker. 2. Temperature gap exists in worker's body between top and bottom according to fresh air inlet velocity and position which is right, left and center of wall. 3. Calculation results of the skin temperature of worker are key data for evaluation of thermal comfort with experimental data in climate room. 4. Optimum condition of temperature, direction and velocity of fresh air will be obtain by numerical simulation for energy effective individual air condition system.

한국인 다운증후군 환자의 수부기형 및 골 연령에 관한 연구

박신,양원용,류경남 大韓成形外科學會 1999 Archives of Plastic Surgery Vol.26 No.3

The purpose of this study was to evaluate the bone age and hand anomaly in Down syndrome patients. We reviewed radiographs in 52 children and youths with Down syndrome, aged from 2 to 23 years. The characteristic findings of hand anomaly were observed in the middle phalanx of the fifth finger, with the following incidence; brachymesophalangia(44%), clinodactyly(48%), and dysmesophalangia(15%). Pseudoepiphysis(21%) was found typically at the distal end of the first metacarpal bone and proximal end of the second metacarpal bone. Up to 8.5 years of age, bone maturation was retarded and thereafter bone age accelarated in advance of chronologic age. These findings may provide valuable information relative to the diagnosis and treatment of hand anomaly in Down syndrome.