한국 정신장애의 역학 조사 연구[I] : 각 정신장애의 유병률

조맹제,함봉진,김장규,박강규,정은기,서동우,김선욱,조성진,이준영,홍진표,최용성,박종익,이동우,이기철,배재남,신정호,정인원,박종한,배안,이충경 大韓神經精神醫學會 2004 신경정신의학 Vol.43 No.4

Objectives : This study aims to estimate the prevalence of the DSM-IV psychiatric disorders in Korean population using the Korean version of Composite International Diagnostic Interview (K-CIDI). Methods : Subjects were selected by taking multi-stage, cluster samples of 7,867 adult household residents, 18 to 64 years of age, in ten catchment areas. Total 78 trained interviewers administered the K-CIDI to the selected respondents, from June 1 to November30,2001. Results : Total 6,275 respondents completed the interview. Some 33.5% of respondents reported at least one lifetime disorder, 20.6% reported at least one-year disorder, and 16.7% reported at least one-month disorder. The most common lifetime disorders were alcohol abuse/dependence (17.24%), nicotine dependence/withdrawal (11.19%), specific phobia (5.16%), and major de-pressive disorder (4.25%). The lifetime prevalence of substance abuse/dependence (0.25%) and schizophrenia (0.16%) was very low. Nicotine and alcohol use disorder showed very high male/female ratio. Mood disorder and anxiety disorder were more prevalent among female than male. Conclusion : The prevalence of psychiatric disorders was high. In comparison with other studies, remarkable differences in distributions of psychiatric disorders across the areas and times were observed.

TMV에 의한 고추의 역병에 대한 전신획득저항성 유도

이성희,차재순,이주연 충북대학교 한국과학재단 지정 첨단원예기술개발 연구센터 1997 연구보고서 Vol.2 No.-

고추에 있어서 전신획득저항성 및 PR 단백질 축적과의 관계를 알아보기 위하여 TMV pepper strain을 고추잎에 접종하고 4일후 고추역병균 P. capsici를 고추줄기에 접종후 역병발생량을 비교하였다. TMV를 전접종한 고추에서는 TMV를 전접종하지 않은 고추에서보다 역병발생량이 크게 감소하였는데, TMV를 전접종한 고추의 역병 발병도와 병반길이는 역병접종 10일째에 TMV를 전접종하지 않은 고추의 약 50% 수준이었다. 담배의 PR1b와 PR5a 항혈청을 이용한 immuno-blot으로 추적한 고추의 PR1 과 PR5 단백질은 TMV 접종엽과 접종상위엽에서 TMV 접종 24시간후부터 세포간극에서 동시에 검출되기 시작하였다. PR1 과 PR5 단백질은 TMV 접종엽에서는 TMV 접종 4-5일후 잎이 탈락할때까지 그 양이 크게 증가하였다. PR5는 TMV 접종상위엽에서 TMV 접종후 그 양이 크게 증가하지는 않았지만 실험종료일인 TMV 접종 20일후까지 검출되었다. 이러한 결과는 고추에서 TMV 검염에 의해 역병에 대한 전신획득저항성이 유도되며, 전신획득저항성이 유도되는 동안 매우 빠르게 고추전신에서 PR 단백질의 생산이 유도되고, 생성된 PR 단백질들이 오래동안 유지됨을 암시하고 있다. Induction of systemic acquired resistance (SAR) against phytophthora blight and PR protein accumulation by TMV in pepper plant (Capsicum annuum cv. Nockwang) were examined to understand the mechanism of systemic acquired resistance in pepper plant. The zoospore suspension of Phytophthora capsici was inoculated on stem of pepper plant on which TMV-pepper strain had been inoculated on fully expanded 3 leaves, and the amount of phytophthora blight incidence was determined with time course. Both disease severity and lesion length of phytophthora blight were much smaller in TMV pre-inoculated pepper plant than in uninoculated control plant. The amount of phytophthora blight in TMV pre-inoculated pepper was about 50% of uninoculated control plant's at 10 days after P. capsici inoculation. PR1 and PR5 protein were monitored in intercellular fluid of TMV inoculated and uninoculated upper leaves by immuno-blot with tobacco PR1b and PR5a antibody to find accumulation of PR proteins locally and systemically during induction of SAR. PR1 and PR5 were detected from 24 hours after TMV inoculation both TMV inoculated and uninoculated upper leaves, and increased rapidly in TMV inoculated leaves until th leaves were defoliated on 4-5 days after TMV inoculation. PR5 was not increased in uninoculated upper leaves as much as in TMV inoculated leaves, but it can be detected until 20 days after TMV inoculation. These results suggest that TMV infection induces SAR against phytophthora blight in pepper plant, and PR proteins is accumulated very rapidly after TMV infection systematically during induction of SAR and maintained for quite long time in pepper plant.

대학 건축공학과의 실습학기제에 관한 연구

이승준,한인웅,정구용,조방현,한기원,박재호,김진원 三陟大學校 2000 論文集 Vol.33 No.2

In order to solidify the architectural education in university, we should enlarge the opportunity of field training and develop the field training course system as a part of industry-scholastic cooperation. And we should develop new educational process to bring up potent engineers adaptable to the training affairs, faithful to the educational object of the industrial university.

정상 혈압쥐와 본태성 고혈압쥐 노화 적혈수에서의 Na, K-ATPase에 관한 연구

정성훈,박창길,허강민,석정호,이재흔 충남대학교 의과대학 지역사회의학연구소 1992 충남의대잡지 Vol.19 No.1

To study the change of Na, K-ATPase of aged erythrocytes in the normotensive and hypertensive rats, the young and aged erythrocytes of Sprague-Dawley rats or spontaneously hypertensive rats were fractionized by density gradient, and ouabain sensitive Rb-uptake and [^3H] ouabain binding sites were measured. 1. In the spontaneously hypertensive rats, blood pressure was significantly increased to 151.5/110.0mmHg(systolic/diastolic). Mean corpuscular volume and membrane protein(mg/10^9 RBC) were decreased and hemoglobin content was increased in the aged erythrocytes. 2. In the normotensive rats, ouabain sensitive Rb-uptake of young erythrocyte was increased as increase of Rb concentration from 4 mM to 8 or 16 mM in the reaction medium, but that of aged erythrocyte was lower than that of young erythrocyte. 3. In the spontaneously hypertensive rats, ouabain sensitive Rb-uptake of young erythrocyte was also increased as increase of Rb concentration in the medium, but lower than that of young erythrocyte of normotensive rats, and that of aged erythrocyte was also decreased compared to that of young erythrocyte and that of aged erythrougte of normotensive ratc. 4. [^3H] ouabain binding sites of aged erythrocyte of normotensive rats and young or aged erythrocyte of spontaneously hypertensive rats were lower than that of young erythrocyte of normotensive rats. From the above results, it is suggested that the decreased activity of Na, K-ATPase in the aged erythrocyte of normotensive and spontaneously hypertensive rats may due to the decreased numbers of enzymes, and these enzymes in the erythrocytes of spontaneously hypertensive rats would changed from the younger erythrocytes than those of normotensive rats or one-kidney Goldblatt hypertensive rats.

스포츠 참가자의 라이프스타일 특성과 서비스 만족의 관계

윤승원,정경회,이일재,박영표 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.1

The analysis of the customers' mind is crucial in the modern society where marketing strategy is very important for the satisfaction of the customers. the purpose of this study was investigating the relationship between lifestyle characteristics and service satisfaction of sports center customer. To achieve this purpose, the population of this study are the participants of the swimming pool, bowling center, fitness club and golf club among the commercial sports center in Jeonju, Jeollabugdo. They are chosen by the multi-stage stratified random sampling considering the events and region. The valid samples are 420 persons at last among 500 persons except the 80 persons whose validity are determined low. To analyze the data, frequency analysis, factor analysis, t-test, ANOVA, regression analysis and covariance structural analysis are used in this study. In this study, those following results are gathered by analysing the data through above approaches. First, According to the background variation of the sports participator; material service to income, personal service to educational level and occupation, systematic service to sex and educational level, there are significant service satisfactions. Second, Lifestyle characteristics of the sports participator influence on service satisfactions significantly; persuit of the trend, social contact, nervousness and individualism influence on personal service social contact, persuit of the trend, nervousness and sentimentalism on systematic service and the other variations on material service.

남사천 하류지역 홍수피해 분석 연구

김가현,이승휘,서진호,민일규,이영재 동아대학교 건설기술연구소 2000 硏究報告 Vol.24 No.1

Where no records are available at a site, a preliminary estimate may be made from relations between floods and catchment characteristics. Anumber of these characteristics were chosen for testing and were measured for those catchments where mean annual flood estimates were available. Although the improvement using extended data in regression of flood estimates on catchment characteristics was small, this may be due to the limitations of the regression model. When an individual short term record is to be extended, more detailed attention can be given; an example is presented of the technique which should be adopted in practice, particularly when a short term record covers a period which is known to be biassed. A method of extending the peaks over a threshold series is presented with a numerical example. The extension of records directly from rainfall by means of a conceptual model is discussed, although the application of such methods is likely to be limited by lack of recording raingauge information. Methods of combining information from various sources are discussed in terms of information from catchment characteristics supplemented by records, but are generally applicable to different sources of information. The application of this technique to estimating the probable maximum flood requires more conservative assumptions about the antecedent condition, storm profile and unit hydrograph. It is suggested that the profile and catchment wetness index at the start of the design duration should be based on the assumption that the estimated maximum rainfall occurs in all durations centered on the storm peak.

B_(2)O_(3)를 첨가한 Ni-Cu-Zn Ferrite의 자성에 대한 소결온도 효과

김민경,이명호,고재귀,송승기 명지대학교 자연과학연구소 2005 자연과학논문집 Vol.24 No.-

B_(2)O_(3)가 첨가된 Ni-Cu-Zn 페라이트의 소결온도 변화에 따른 자기적 성질을 연구하였다. 실험에 사용한 시료는 0.1 wt%의 B_(2)O_(3)를 (Ni_(0.204)Cu_(0.204)Zn_(0.612))Fe_(1.198)O_(2.98)에 첨가하여 각각 1000℃, 1100℃ 그리고 1200℃으로 4시간 동안 소결시켜 제작했다. 시료의 자기적 성질은 X-ray 회절 패턴, 자기이력 곡선, 초투자율, 손실계수 그리고 비저항을 측정하여 연구하였다. 자기이력 곡선과 초투자율 측정 결과로부터 세 시료 모두 우수한 연자성체가 되었음을 확인하였고, 소결온도가 높을수록 coercive force(H_(c))의 감소와 초투자율의 증가가 관찰되었다. 특히 가장 높은 온도(1200℃)로 소결한 시료의 Hc는 0.217Oe이었고, 초투자율은 전 영역의 주파수에 걸쳐 가장 큰 값을 유지하였다. 전력손실은 1 ㎑~10 ㎒ 주파수 영역의 교류에 대해 시료 모두 안정된 값을 갖고, 1200℃로 소결된 시료의 전력손실과 비저항은 시료 중 가장 적은 값을 가졌다. We have studied the dependence of B-doped Ni-Cu-Zn ferrite on sintering temperature. The samples were prepared from 0.1 wt% B_(2)O_(3)-doped (Ni_(0.204)Cu_(0.204)Zn_(0.612))Fe_(1.198)O_(2.98) ferrites and sintered at 1000℃, 1100℃ and 1200℃ for 4 hours respectively. The crystal structures of the samples were identified by X-ray diffraction pattern, and the magnetic properties of those were investigated by measuring X-ray diffraction pattern, hysteresis curve, initial permeability and resistivity. The results showed that all of the three samples were good soft magnetic materials, and initial permeability increased with the decreasing of Hc as the sintering temperature became higher. Especially, the sample sintered at 1200℃ showed Hc of 0.217Oe and maintained the highest value of initial permeability through the whole frequency range. The loss factors of the samples showed good frequency stability from 1 ㎑ to 10 ㎒ and both the loss factor and resistivity of the ssample sintered at 1200℃ was the least.

건식법에 의한 폐PCBs와 자동차 폐촉매로부터 동시 귀금속 농축 회수 공정개발

김병수,이재천,서승필 대한금속재료학회 2003 대한금속·재료학회지 Vol.41 No.6

In the world large amount of used printed circuit boards (PCBs) and spent autocatalysts which contain precious metals have been emitted. However, processes which can recover the precious metals simultaneously from them have not been developed yet. In this study a new process for recovering the precious metals contained in the used PCBs and spent autocatalyst by a pyrometallurgical process simultaneously was developed. The distinguish of that is to use copper, tin, and iron contained in the used PCBs as collector metals of the precious metals contained in the used PCBs and spent autocatalysts. Advantages of the process suggested are simply and economic compared with the previous processes which could recover the precious metals from the used PCBs and spent autocatalysts, respectively. Using the suggested process the precious metals such as Au, Pd, and Pt contained in the used PCBs and spent autocatalyst could be recovered up to 95 % in Cu alloy phase.

고주파수대역에 적용되는 Fe-( BN, Si₃N₄)박막의 미세구조와 자기적특성에 관한 연구

申東勳,張勝彦,李宰源,南勝義 弘益大學校 科學技術硏究所 1997 科學技術硏究論文集 Vol.8 No.-

We have investigated the magnetic properties of FeBN thin films deposited by using RF magnetron sputtering and Fe-BN composite target. It was investigated that the area fraction of BN chips on the Fe target and partial pressure of nitrogen was the main factors influencing the soft magnetic properties and resistivity of FeBN thin film. The low addition of N₂increases significantly the soft magnetic properties and electrical resistivity. The good soft magnetic properties are obtained at N₂partial pressure of 5%, but futher increase in N₂ partial pressure degrade the soft magnetic properties due to formation of nitrides such as Fe₄N, Fe₂∼₃N. In a sputtering process, as the area fraction of BN increases, FeBN thin films fabricated at the area fraction of 0.25 exhibt soft magnetic properties (Bs∼17kG, Hc∼10e, μ∼1000).

다이아몬드휠을 사용한 WC-Co재의 고능률적 평면 연삭 가공에 관한 연구

김원일,허성중,강재훈,이재경 慶南大學校 附設 工業技術硏究所 1992 硏究論文集 Vol.10 No.-

WC-Co재는 금형 제작용으로 근래 그 사용이 급증하고 있다. 본 논문은 WC-Co재의 고능률 최적 연삭조건을 정립하기 위하여 연삭저항과 연삭비를 중심으로 실험적 연구를 행한 결과 다음과 같은 결론을 얻을 수 있었다. 1)WC-Co재의 가공에 대한 연삭저항은 연삭 깊이가 증가하고 다이야 몬드 연삭 숫돌의 주속도가 느릴수록, 공작물 연삭 속도가 감소할 수록 증가하였다. 2)WC-Co재의 경우, 연삭비는 테이블 이송 속도등의 증가와 더불어 감소함을 나타내었다. Recently, the making of WC-Co materials which are used for metallic mould is growing very rapidly. This investigation examines the grinding force and grinding ratio caused by experimental machining of WC-Co for research high efficiently optimal grinding condition. From the result of experiments obtained hear are summarized as follows and so forth. 1) For working WC-Co materials, the grinding force increases according to increase of depth of cut, decrease of surface velocity of diamond abrasive wheel and increase of surface velocity of work. 2) In case of WC-Co materials, grinding ratio is decrease according to increase of table feed rate et, al.