서울·경기지역 병원직원의 혈액매개 감염노출에 대한 다기관 조사연구

박미라,김정은,박은숙,최정실,정선영,송영구,홍성관,김준명,허애정,양동규,조영주 대한병원감염관리학회 2003 의료관련감염관리 Vol.8 No.1

중환자실 병원감염에 대한 다기관 공동 조사연구

박은숙,박미라,진혜영,김정은,최정실,송영구,최영화,이위교,홍성관,허애정,양동규,김준명 대한병원감염관리학회 2003 의료관련감염관리 Vol.8 No.1

고령자 남녀와 20대 남녀에 있어서 다양한 등속수축중 최대 모멘트의 비교

金智源(Ji-Won Kim),金相佑(Sang-Woo Kim),文基旭(Ki-Wook Moon),嚴光文(Gwang-Moon Eom),李泳揆(Young-Gyu Lee),南貞淑(Jung-Sook Nam),朴寬龍(Kwan-Yong Park),金耀翰(Yo-Han Kim),洪廷和(Jeong-Hwa Hong),朴炳奎(Bung-Kyu Park) 대한전기학회 2008 전기학회논문지 Vol.57 No.10

In this paper, we investigated the maximum ankle joint plantarflexion moment (MPM) of young and elderly subjects during various modes of isokinetic contractions with special interest in the elderly females who were reported to have higher fall rate than the elderly males. Subjects include the young subjects (14 males: 22.7±2.5yrs, 13 females: 20.5±1.3yrs) and the elderly subjects (17 males: 65.8±10.5yrs, 26 females: 71.4±5.2yrs). The MPM was normalized by each subject's body weight. The MPM of elderly females was the weakest among the groups, particularly, at the eccentric contractions. The male-to-female ratio of MPM was greater in the elderly than in the young and the young-to-elderly ratio of MPM was greater in female than in male, both during the eccentric contractions. The result suggests that the decreased muscle force per body weight, especially at the eccentric contraction, may be one reason for the more frequent fall of the elderly female than the elderly male.

유아체육교사와 학부모의 유아체육 인식 연구

정관영,안을섭 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.2

In this study, I compare and analyze the difference of recognition between 97 teachers and 107 parents in actual condition of management, appreciation, curriculum, the direction of development about child physical education in child physical education institute through questionnaire attached appendix 1,2 The result from analyzing the questionnaire is following First, though both parents and teachers understand the need and appreciation of child physical education, there is a significant difference in that teachers are more understanding. It is appeared that both of them think that child physical education is needed for harmonious physical and mental development. Secondly the contents that teachers think the most important to be taught in child physical education is to percept and move body and the contents that parents think the most important is to participate in physical activities. The large number think to percept and move body there is a significant difference among them. Child physical educations which are often lack of creative education and basic movements are needed to be planed by both child educators and child physical educators, who discuss and work together as an expert to make a better program. To make child physical education continue to lifelong education, various programs based on developmental physical education program should be developed and institution for child physical educators should be made.

初期發熱患者에 대한 防風解毒湯의 經時的 解熱效果

정우상,문상관,조기호,김영석,배형섭,이경섭 경희대학교 1997 慶熙醫學 Vol.13 No.4

양이온 개환 중합을 이용한 Ethylene oxide와 Epibromohydrin의 공중합

정권영,이범재 충남대학교 바이오응용화학연구소 2007 응용화학공학 Vol.1 No.1

Well-defined copolyethers derived from Ethylene oxide (EO), Epibrmohydrin (EBH) was synthesized by cationic ring-opening copolymerization. This polymerization was controlled to proceed by activated monomer (AM) mechanism in order to obtain the desired molecular weight, narrow molecular weight distribution, and copolymer composition. In this polymerization 1,4-Butandiol was used as an initiator and BF₃·OEt₂ was chosen as a cationic catalyst.

화상처리를 이용한 지능형 가공시스쳄의 설계 및 구현

김관형,김수정,김영탁,문희근,이상배 한국해양대학교 산업기술연구소 2003 연구논문집 Vol.20 No.-

본 논문은 자동화 시스템에 적용 가능한 지능 제어 시스템에 관한 연구이다. 따라서 본 연구에서는 지능제어 이론과 영상처리기술들을 이용하여 지능형 복합제어시스템을 능동적으로 제어하는 것을 목적으로 한다. 지능형 복합제어시스템의 성능 평가와 제어 전략은 각각 신경회로망과 퍼지이론을 이용하였고, 영상 처리기법을 이용하여 물체의 특정 위치를 추출하였다. 실제 시스템에 적용하여 얻은 실험 결과를 통하여 본 논문에서 제안한 방버의 유효성을 제시하고자 한다. This paper is research into intelligent control system that is able to apply at automatic system. So, in this paper we are in control of intelligent compound control system actively for the use of intelligent control theory and image processing. Performance evaluation and control strategy of intelligent compound contro system were used to neural network and fuzzy theory, we proposed detection of particular position using image processing we propose availability of proposed method based experiment result that apply to real system in this paper.

관동맥연축의 비침습적 진단에 있어 Ergonovine Echocardiogrpahy의 유용성

송재관,박성욱,김재중,두영철,김원호,박승정,이종구 울산대학교 의과대학 1992 울산의대학술지 Vol.1 No.1

관동맥연축의 비침습적인 진단방법의 확립은 침습적인 관동맥조영술 및 연축유발검사에 비해 반복적용이 가능한 이론적인 장점이 있어 선별검사(screening test)로서의 기능뿐만 아니라 치료로 이용되는 약물의 효과비교 및 추적검사를 통한 관동맥연축의 임상ㄹ활동도 평가등에 손쉽게 이용될 수 있으라라 예상된다. 이에 저자들은 ergonovine 투여시 기록된 좌심실벽운동장애 유무가 갖는 관동맥연축에 의한 심근허혈의 진단적 가치를 평가하기 위해 Beside Ergonovine Echocardiography Test를 시행하였다. 관동맥조영술 및 연축유발검사에서 변이형협심증으로 증명된 30명(남자 27명, 평균연령 54세)과 비특이적인 흉통질환군 20명(여자 12명, 평균연령 55세)을 대상으로 관동맥조영술 다음날 ergonovine test를 시행하였다. 운동부하검사가 음성인 환자들을 대상으로 6시간 공복시킨 뒤 앙와위에서 상지정맥을 통하여 25-50microgram(이하 mcg)을 5뷴 간격으로 투여하여 흉통의 유무, 심전도 및 이면성심초음파를 5분마다 기록하였으며 총투여량이 350mcg에 도달하거나 양성반응을 보이는 경우 nitroglycerin 250mcg 정주 및 설하투여로 종료하였다. 좌심실벽운동의 분석은 side-by-side continuous cine-loop display가 가능한 QUAD screen 방법으로 판별하였다. 가역적인 심전도 변화나 국소적인 심실벽운동장애가 유발되는 경우를 양성으로 판정하였다. Ergonovine Echocardiography의 전체 민감도는 90%, 특이도는 100%로 동시에 기록된 심전도 변화의 민감도(73%)보다 높았으며 특히 흉통이 있으나 심전도 변화가 전혀 없었던 5례 모두에서 좌심실벽운동장애가 관찰되어 본 검사법의 우월성을 확인할 수 있었다. 양성반응을 보인 ergonovine 평균 투여량이 173±95mcg 이었으며 흉통발작의 빈도를 기준으로한 임상활동도가 높은 경우 활동도가 낮은 군에 비해 양성반응을 의한 총 ergonovine 투여량이 적었으며(123±86 vs 213±83mcg, p<0.01) 관동맥협착이 연축에 동반되어 있는 경우 정상 관동맥에 연축이 있는 경우보다 민감도가 더 높았다(100% va 60%, P=0.02). Ergonovine 투여로 혈압은 기저치 보다 약 17%정도 증가되었으나 맥박수는 큰 변화를 나타내지 않아 안전하게 시행될수 있었으며 오심, 두통, 견갑부통증, 심실기외수축, 방실차단 등이 소수례에서 관찰되었으나 검사로 인한 사망례는 없었다. Ergonovine 주입후 기록된 좌심실벽운동동장애는 심전도 변화보다 더 민감하게 관동맥연축에 의한 심근허혈을 진단할 수 있었으며 Ergonovine Echocardiography는 운동부하검사 등으로 심한 관동맥협착이 배제된 선별된 흉통환자들에서 관동맥연축의 진단에 안전하게 시행될 수 있는 민감하고 특이도가 높은 검사방법이며 변이형협심증의 임상활동도와 관동맥협착의 동반유무가 본 검사법의 결과에 영향을 미칠 수 있으리라 사료된다. The purpose of this study was to evaluate the clinical feasibility of bedside intravenous ergonovine test with echocardiography as a noninvasive diagnostic method for coronary vasospasm. Bedside ergonovine test was performed in 50 patients with chest pain one day after coronary angiography with spasm provocation test;30 patients showed positive results of provocation test while in 20 patients there was no evidence of coronary vasospasm. A bolus of ergonovine maleate(.025 or .05mg) was injected at 5 min intervals up to total cumulative dosage of 0.35mg, and 12-leads ECG and 2-D Echo were recorded every 3min after each injection. Left ventricular wall motion was analyzed with a commercially available ' QUAD' system. The positive criteria of beside ergonovine test included reversible ST segment elevation or depression, T wave changes in ECG(ECG criteria) and reversible regional wall motion abnormalities(RWMA) in Echo(Echo criteria). The overall sensitivity and specificity of ECG criteria were 73%(22/30) and 100% respectively ; The sensitivity of Echo criteria increased up to 90%(27/30) without the change of the specificity. Among 22 patients with reversible ECG changes only 73%(16/22) showed typical ST segment elevation while ST depression was recorded in 2 patients(9%) and minor T wave peaking or flattening without ST segment displacement in 4 patients(18%). Concomitant fixed coronary lesion does increase the sensitivity of the test compared to pure coronary vasospasm with ECG criteria(100% vs 60%, p<0.05). Mean does of ergonovine with positive results was 173±95 microgram(mcg) and the amount of does of ergonovine for positive result was significantly larger in patients with low disease activity (chest pain <5times/자) than those with high disease activity(213±83 vs 123±86mcg, p<0.01). There was no procedure related mortality or fatal arrhythmias. Ergonovine echocardiography is a highly sensitive and specific test for coronary vasospasm and is safe in selected patients in whom the exercise test is negative and severe fixed coronary artery disease has been excluded. Presence of concomitant fixed coronary artery disease and the degree of clinical activity of coronary vasospasm may influence the results of this test.

Cr(Ⅵ)-헤테로고리 착물에 의한 알코올류의 산화반응에 미치는 용매효과(Ⅱ) : Solvent Effects on the Oxidation Reaction of Alcohols with Cr(Ⅵ)-Heterocyclic) Complexes(Ⅱ)

박영조,권오관,양정성,이상배 慶南大學校 附設 基礎科學硏究所 1995 硏究論文集 Vol.7 No.-

Chromium(Ⅵ)-heterocyclic complexes, pyrazinium chlorochromate, 4-(dimethylamino) pyridin-ium chlorochromate, 2.2'-bipyridinium chlorochromate, isoquinolinium chlor ochromate, and 2.4'-bipyridinium chlorochromate were synthesized by the react ion of pyrazine, 4-(dimethylamino)pyridine, 2.2'-bipyridine, isoquinoline, 2.4'-bipyridine with chromium trioxide in 6M hydrochloic acid perspectively. Chromium(Ⅵ)-heterocyclic complexes were non-hygroscopic and readily dissolved in water. Their structures were identified with IR spectra and elenental analysis. In case of the process of oxidants for alcohols, the dielectric constants of solvent used influenced on the process of oxidation reaction. DMF was better solvent for the oxidation reaction than DMA, Acetone, CH₂Cl₂.( DMF < DMA < Acetone < CH₂Cl₂)

Dynamic Plasma Screening Effects on Electron-ion Collisions in Dense Plasmas

윤정식,김형관,정영대 한양대학교 이학기술연구소 1999 이학기술연구지 Vol.1 No.-

고밀도 플라즈마 내에서의 전자-이온 충돌여기 그리고 제동복사 현상이 미치는 동적 플라즈마 가림효과를 연구하였다. 전자-이온 상호작용 포텐셜은 플라즈마 유전함수를 도입하여 사용하였다. 직선궤도 방법을 사출입자의 궤도에 적용하였다. 동적 플라즈마 가림효과를 포함한 전이확률이 정적 플라즈마 가림효과를 포함한 전이확률보다 항상 큰 값을 갖는 것을 알 수 있었다. 또한 동적 플라즈마 가림효과를 포함한 제동복사 미분 산란단면적이 정적 플라즈마 가림효과를 포함하고 있는 제동복사 미분 산란단면적보다 항상 크다는 것을 알 수 있었다. 사출입자의 속도는 전자의 열적속도보다 작을 경우, 동적 분극 가림효과가 정적 플라즈마 가림효과로 되었다. 그러나, 사출입자의 속도가 전자의 열적 속도보다 클 경우, 상호작용 포텐셜은 거의 가려지지 않는 것을 알 수 있었다. Dynamic plasma screening effects are investigated on electron-ion collesional excitation and Coulomb bremsstrahlung processes in dense plasmas. The electron-ion interaction potential is considered by introduction of the plasma dielectric function. The straight-line trajectory method is applied to the path of the projectile electron. The transition probability including the dynamic plasma screening effect is found to be always greater than that including the static plasma screening effects. It is found that the differential bremsstrahlung radiation cross section including the dynamic plasma screening effect is also greater than that including the static plasma screening effect. When the projectile velocity is smaller than the electron thermal velocity, the dynamic polarization screening effect becomes the static plasma screening effect. However, when the projectile velocity is greater than the electron thermal velocity, the interaction potential is almost unshielded.