서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1994)

김재홍,안진균,정성재,김영태,김중환,김시영,이석종,이홍렬,서호석,김경훈,권혁진,정우권,고우석,이용석,안필수,오준규,오용섭 대한화학요법학회 1996 대한화학요법학회지 Vol.14 No.1

Background : In recent years gonorrhoea has been panendemic and remains one of the most common Sexually Transmitted Diseases in the world, especially in developing countries. Objective & Method : For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria Gonorrhoeae(PPNG), Ive have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results : In 1994, 168 strains of N. gonorrhoeae were isolated, among which 109 (64,9% ) were PPNG. Conclustion : Our results suggests that the prevalence of PPNG in Seoul is still increasing.

세 도시의 생활 쓰레기 발생량의 장래 추이 예측

오정화,강호,이진홍 忠南大學校 環境問題硏究所 1995 環境硏究 Vol.13 No.-

This study centers on a long-term prediction for the generation of municipal solid wastes for 3 cities such as Pusan, Taejon and Cheongju. For the long-term prediction several statistical models based on time or population were proposed and utilized. The MSW discharge per day from 3 cities predicted is in the range of 12,100~14,600 ton for Pusan, and 3,100~3,800 ton for Taejon, and 2,200~2,600 ton for Cheongju in the year of 2008, respectively. However, the volume-based charge system since January 1995 has made a great effect on the generation of MSWs. Unfortunately, there has been few data to consider this effect for the prediction. Therefore, there has been an urgent need to collect new baseline data for the more realistic long-term prediction.

하수에서 분리한 합성세제 분해균의 특성

정민선,전진경,정영건,이해경,권오진,지원대,김관배 嶺南大學校 環境問題硏究所 1993 環境硏究 Vol.13 No.1

대구시와 경산시의 하수에서 음이온계 합성세제인 sodium dodecyl sulfate(SDS)와 sodium dodecylbenzene sulfonate(SDBS)를 유일한 탄소원으로 이용하는 균주 289종을 분리하고 이중 합성세제 분해력이 강한, 그람음성 간균으로 운동성인 8균주를 선정하여 그 선정균들의 특성을 조사하였다. 선정균은 40℃ 이상에서는 생육하지 못하였으며 생육 최적 pH는 균주간에 다소 차이가 있었으며 pH 4.0 이하에서는 선정균 모두 생육치 못하였다. 질소원으로는 SDS분해균의 생육에는 potassium nitrate가, SDBS 분해균의 생육에는 soytone이 좋았다. SDS 분해균인 DS-3, 6, 8, 24 및 SDBS 분해균인 BS-7, 8은 세제농도가 5.0% 이상에서도 생육이 가능하였다. 선정균들은 tetracycline에 감수성이 강한 것으로 나타났지만 penicillin에는 강한 내성을 띠는 것으로 나타났고, ??와 ??금속이온은 모든 선정균들의 생육을 억제하는 것으로 나타났다. On purpose to isolate the organisms, which would utilize detergents(sodium dodecyl sulfate, SDS and sodium dodecylbenzene sulfonate, SDBS) as a sole carbon source, from the waste water of Kyungsan and Taegu city 289 strains were isolated. Among them 8 strains, which are gram negative rods with motility and produce strong enzyme to biodegrade the synthetic detergents, were selected. The characteristics of them were investigated as follows, 8 strains were failed to grow above the temperature of 40℃ and below the pH 4.0 even though they have variable optimum pH. Potassium nitrate was very effective for the growth of SDS-biodegradable strains and soytone was effective for the growth of SDBS-biodegradable strains as a sole nitrogen source. Among 8 strains especially DS-3, DS-6, DS-8 and DS-24(SDS-biodegradation strains) and BS-7 and BS-8(SDBS-biodegradation strains) could grow above 5.0% of detergent concentration. All of 8 strains were very sensitive to tetracycline but resistant to penicillin. Selected 8 strains were inhibited by metal ions of ??(0.156mg/㎖) and ??(0.156mg/㎖).

콘크리트 構造物의 混合모드 龜裂傳播모델 (第 4 報)

진치섭,오정민,이홍주 釜山大學校生産技術硏究所 1998 生産技術硏究所論文集 Vol.55 No.-

2 차원 선형탄성 균열문제에 적합한 파괴기준을 알아보기 위해, 응력확대계수 K과 K 균열파단각과 파괴하중을 최소 변형에너지밀도 기준에 의해 구하는 유한요소 프로그램, SED를 개발하였다. 이 프로그램에서는, 6절점 삼각형 특이요소를 사용한 균열선단을 제외한 다른 부분에서는 고전적인 8절점 사변형 등매개변수 요소를 사용하였다. SED의 결과를 최대 원주방향 인장응력 기준과 최대 에너지 해방률 기준에 의한 프로그램의 결과차, 그리고 Jenq & Shah의 실험결과와 동일한 조건에서 비교하였다. 본 연구는 혼합모드 균열전파 모델의 계속적인 연구로서 이전의 최대 원주방향 인장응력 기준과 최대 에너지 해방률 기준에 의한 해석치와는 다소 차이가 있으나 전반적으로 Jenq 와 Shah의 실험치와 비슷한 양상을 보였다. To find out an adequate failure criterion in two-dimensional linear elastic crack problems, finite element program, SED, which determines stress intensity factors K, K, crack angle and peak load by the minimum strain energy density failure criterion were developed. In this program, the conventional quadratic isoparametric elements were used in all regions except the crack tip zone where triangular singular elements with 6 nodes were used. The results of SED were compared with the results of those which followed by the maximum circumferential tensile stress criterial and those by the maximum energy release rate criteria and those by Jenq and Shah's experiments of the same geometry and material properties. This study which has kept continuously as mixed mode crack propagation models is somewhat different from previous results, maximum circumferential tensile stress criterial and the maximum energy release rate criteria, but SED's result is generally similar to Jenq & Shah's experiments.

미세 패턴에서 공정 여유도를 고려한 선폭 분석

정연운,조선영,오진경,오혜근 漢陽大學校 工學技術硏究所 1997 工學技術論文集 Vol.6 No.1

The linewidth variation with different process variables, such as exposure dose, thickness of PR, thickness of thin film, and the optical property of thin film, was studied for deep UV light and resist developed 0.25 μm isolated line pattern. We found that the PR thickness which gave minimum linewidth showed larger exposure latitude and smaller linewidth variation compared to the PR thickness which gave maximum linewidth. Thus it will provide better process latitude and smaller linewidth variation if we use this PR thickness.

이압요법이 병원여성근로자의 월경곤란증에 미치는 효과

오은주,장옥점,정현자,이혜진,김은정 병원간호사회 2008 임상간호연구 Vol.14 No.1

Purpose: This study was done to provide support material to traditional nursing interventions through investigation of the effect of Auricular acupressure therapy for female staff in the hospital who have dysmenorrhea but cannot be absent from work even with severe symptoms affecting their work and therefore cannot get proper pain management. Method: The participants in this study were 62 women were working in the G-university hospital in Jin-ju, assigned to experimental (30) and 32 control groups (32). The study method was a quasi-experimental, nonequivalent control group non-synchronized design. The experimental group received acupressure treatment (a pin was attached to tape) on the special stimulation points in the inside of the ear, 5 times for 5 seconds, morning, afternoon, and night. Tape without the pressure pin was applied to the same points for women in the control group to evaluate placebo effect. Data were collected from May to November 2007 and were analyzed using SPSS PC+ 12 version. Descriptive statistics, t-test, x2 -test, Fisher's exact test, paired t-test, were used to analyze the data. Results: The experimental group showed a significant decrease in dysmenorrhea compared to the control group (t=-2.743, p<.01). In the sub-part, the experimental group showed menstruation related pain (t=-3.726, p<.01), menstruation related to behavioral change (t=-2.421, p<.05) and symptoms however, there was no significant difference related to attention deficit, water retention, and negative image. Conclusion: Application of auricular acupressure therapy was approved for this study and although auricular acupressure therapy was not effective for all of the symptoms, it was effective for dysmenorrhea.

배관 결함부 원거리장 와전류 신호 정량화 연구

정진오,이재경,김형진 한국비파괴검사학회 2000 한국비파괴검사학회지 Vol.20 No.6

다양한 기계 가공 결함을 유기한 공칭 외경 100mm의 덕타일 주철관을 대상으로 원거리장 와전류 검사를 수행하였다. 상수도 배수관으로 사용되는 주철관은 제조 단계의 큰 허용 오차 때문에 두께가 일정하지 않고 단면이 비대칭적인 특징을 지니므로, 원거리장 와전류 탐상 신호에는 배관 축방향에 걸친 장범위 잡음이 존재하게 된다. 본 논문에서는 장범위에 걸친 배경잡음을 효과적으로 제거하기 위하여 이동구간 평균법을 응용하였고, 결함의 깊이와 원주방향 정도를 정량적으로 평가하기 위하여 voltage plane 극좌표(VPPP) 방법을 활용하였다. 이동구간 평균처리로서 신호비를 일차적으로 향상시킨 다음 VPPP 기법을 이용하여 결함신호를 얻은 결과, 결함신호가 VPPP상의 기준점에서 x 축과 이루는 각이 결함 깊이와 직선적인 상관 관계가 있음을 확인하였다. 따라서 배관과 동축으로 놓인 탐촉코일을 이용한 원거리장 와전류 검사로서 매설 상수도 배관 내ㆍ외부에 존재하는 부식결함을 비파괴 정량평가할 수 있는 기반을 구축하였다. The remote field eddy current (RFEC) inspection was performed on the ductile cast iron pipes with nominal outer diameter of 100mm, which were machined with various shapes and sizes of defects. Ductile cast iron pipes which are used as water supply pipe have the non-uniform thickness and asymmetric cross section due to relatively high degree of allowable errors during the manufacturing processes. These characteristics of ductile cast iron pipes cause the long range background noises in RFEC signals along the pipe. In this study, the machined defects in pipes were effedctively classified by the moving window average (MWA) method which eliminated the long -range noise. The voltage plane polar plots (VPPP) signatures showed method was used to quantitatively evaluate the depth and circumferential degree of defects. The VPPP signatures showed that the angle between defect signature and the naormalized in-phase component on the VPPP is linear to the depth of defects. The nondestructive RFEC technique proved to be capable of quantitatively evaluating the machined defects of underground water supply pipe.

면접조사를 통한 초등학생의 영양교육 실태 및 실천도 조사

오유진,이영미,김정현,안홍석,김정원,박혜련,서정숙,김경원,권오란,박혜경,이은주,성현이 대한지역사회영양학회 2008 대한지역사회영양학회지 Vol.13 No.4

This study investigated the experience and practice of elementary school students on nutrition education. The data were collected from 217 male and female students attending 5-6th grade elementary schools in Seoul and Kyunggi-Do from March to June 2007, interviewing face to face by a nutrition teacher and 3 interns of a nutrition teacher. The results were as follows: 86.5% of the subjects learned about ‘Table etiquette’, ‘Reasons for eating fruits and vegetables’ (78.7%), ‘Food waste and environment’ (72.3%), ‘Healthy snacks’ (55.7%), ‘Food sanitation’ (52.3%), ‘Food culture of foreign countries’ (48.1%). Nutrition education experience was significantly different by gender. A total of 43.5% boys responded that they never learned about ‘basic food preperation’ (p < 0.01). They had learned ‘Nutrients for body’ and ‘Food waste and environment’ in school, ‘Healthy weight loss’, ‘Food culture of foreign countries’, ‘Food circulation’ on television, Most content (‘Table etiquette’, ‘Simple cooking’, ‘Food sanitati n’, ‘Eating behaviors for health’, ‘Reasons for eating fruits and vegetables’, ‘Healthy snacks’) was learned from parents. The practice after nutrition education was higher in ‘Table etiquette’ (2.14), ‘Eating fruits and vegetables’ (2.07) than others compared with education experience. The most reason of non-practice on nutrition information was ‘Troublesome’. In ‘Nutrients for body’, a boy answered ‘Difficult for practice’ 20.0%, a girl answered ‘Difficult to understand’ 32.6%, showing a significant difference between the gender groups (p < 0.001). They remembered the ‘Nutrients for body’ (49.6%), ‘Food sanitation’ (44.5%) because of ‘important content’,‘Basic food preparation’ (40.6%), ‘Food culture of foreign countries’ (36.3%) because of ‘interesting content’, ‘Healthy weight loss’ (52.0%), ‘Eating behavior for health’ (44.5%) and ‘Healthy snacks’ (33.7%) because of ‘need for my health’.

(±)-Camphor가 ICR 마우스 수컷의 간 cytochrome P450 효소 활성에 미치는 영향

오은경,박형건,배기현,최옥진,최은경,최창근,한진희,정태천 한국환경독성학회 2002 환경독성보건학회지 Vol.17 No.4

Effects of (±)-camphor on liver cytochrome P450 enzymes were investigated in male ICR mice. Mice were treated intraperitoneally with 0, 200, 400 and 800 mg/kg of (±) -camphor in corn oil for 3 consecutive days. Twenty four hr after the final treatment, the animals were subjected to necropsy. The activities of serum aspartate aminotransferase and serum alanine aminotransferase were slightly changed by the treatment with (±)-camphor at the doses used. Administration o(±)-camphor to mice significantly induced the hepatic activities of pentoxyresorufin O-depentylase and benzyloxyresorufin O-debenzylase and weakly induced ethoxyresorufin O-deethylase in dose-dependent manners. The present results suggested that (±)-camphor might act as a relatively specific inducer of hepatic cytochrome P450 213 in male ICR mice.

Terfenadine과 Ketoconazole 병용투여에 의해 유발된 Torsade de Pointes1예

오석규,국향,임수빈,정진원,박양규,박옥규 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.3