실험적 급성 심근경색증 후 좌심실 재성형에 관여하는 간질 조직의 변화에 대한 전환효소억제제의 기전에 대한 연구 : 백서의 非痛璧性 심근경색 후 좌심실 재성형 및 Transforming Grawth Factor β-1의 발현 변화와 이에 대한 레닌 안지오텐신계 차단제의 효과 분석 Effects on Transforming Growth Factor - β-1 Expression

연태진,김석연,김효수,김어진,김소영,정은주,서정욱,오병희 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.9

의사음성 기반 처방입력 의료정보시스템

윤석권, 송정영 배재대학교 공학연구소 2013 공학논문집 Vol.15 No.1

Generally OCS(Order Communication System) is determined by input from outside of the operating room because the operating room is clean area. In this case, it may have a little bit of a problem in the patients management. It is an OCS leaks or does not quickly. Therefore, In order to solve this problem it should be directly input OCS in the operating room doing surgery at the same time. In this study, in order to Writhe a prescription, we were introduced by applying speech input which we were not used input lay beard or mouse. Because it is to avoid physical contact in the operating room as possible. Therefore, our OCS was built for speech input in this study, and also we create new algorithm. IN general, input speech does not be used in the Hospital for prescription. The result of this study, therefore, is thought to actually be useful.

Rate of Sediment Accumulation and Magnetic Susceptibility of Continental Shelf Sediments around the Cheju Island, Korea

윤정수,강석수 제주대학교 해양연구소 1997 해양자원연구소연구보고 Vol.21 No.-

The sediments in the study area are subdivided into twelve textural classes, namely clayey sand, slightly gravelly muddy sand. muddy sand, sand, sandy mud, sandy clay, mud and clay. The coarse sediments are distributed in the southeastern parts and around the Island. whereas the coarse and fine-grained mixed sediments are distributed in the central and northeastern region, and the fine-grained deposits are mainly distributed in the western part of the study area. Small scale mud patchs are distributed in the southwestern. and northern parts of the Island. The carbonate content(21.6% on average) are commonly abundant in sandsize sediments. whereas total organic matter(6.62% on average) are usually decreases with increasing mean grain size. The use of Pb-210 geochronologies to estimate sedimentation rate ranges from 0.20 to 0.54 cm/yr or 0.15~0.42 g/㎠/yr. This suggests a maximum accumulation rate in the study region given ignoring the mixing effect. The sedimentation rates in cores J-101 and J-134 near the Changjiang River estuary show 0.45~0.54 cm/yr. and the flux of Pb-210 in this region is 1.48~2.31 dpm/㎠/yr. but two core J-138 and J-142 far from the Changjiang estuary show 0.20-0.22 cm/yr and 0.36-0.57 dpm/㎠/yr respectively, which is much lower than above two samples. The decrease in accumulation rate with increasing water depth may be result of progressive seaward depletion of influx and reworking of detrital materials. The sedimentation rate in cores J-59 and J-91 around the Cheju Island show 0.21~0.44 cm/yr and the Pb-210 flux of 0.84-1.44 dpm/㎠/yr is measured. indicating that the terrigenous materials from the Island were supplied to this environment. The sedimentation rate measured using two peak concentration of Cs-137 in a sediment profiles J-59, J-13 and J-142 ranges from 0.12 to 0.30cm/yr. which agree well the Pb-21 calculated data 0.20-0.22cm/yr from that at same samples. but a comparison sedimentation rate in cores J-91, J-101 and J-134 measured by Cs-137(0.16-0.30 cm/yr) and calculated from Pb-210(0.44-0.54 cm/yr) show that in the studied core profiles. the Cs-137 survey data underestimate the sedimentation rate measured by Pb-210 data. Its presumably the result of difference in the behavior of Pb-210 and Cs-137 in natural water column. Measurements of magnetic susceptibility of continental shelf sediments around the Cheju Island revealed two areas of anomalously high values: surrounding the Cheju inshore area. due to the influx and reworking of detrital volcanic materials distributed in the Cheju Island. and toward the mouth of Chanjiang River. suggesting due to the iron and steel works in the Changjiang estuary recently. It was observed that low susceptibility values correspond to a high proportion of coarse sediment, whereas high susceptibility values correspond to silt and clay fraction. Down core variation in susceptibility shows a series of maximum and minimum which correlated with horizons of fine-and coarser particles respectively. that can possibly be used to establish a lithostratigraphy.

운동부하가 폐환기능에 미치는 영향

윤지열,장석종 충남대학교 의과대학 지역사회의학연구소 1985 충남의대잡지 Vol.12 No.2

The purpose of this study was to determine and evaluate the effect of an acute bout of treadmill exercise on the Forced vital capacity(FVC), Timed vital capacities(FEV_T), and Forced expiratory flow(FEF) in the sedentary subjects. The ventilatory functions of 18 male college students were measured ,before and immediately after 5% grade, 5 MPH, 3 min. (Ex-Ⅰ) or 6 min. (Ex-Ⅱ) treadmill exercise. The measured values also were standardized with height(height ratio) and body surface area(BSA ratio) of each subject. The values, measured and standardized of pre-and post-exercise, were compared each other. The FVC and its height and BSA ratio were not affect by treadmill exercise. The FEV_T and FEF were tend to increase with exercise and especially the increase in FEF_75∼85% and FEF_75% values were statistically significant. Furthermore, similar patterns of changes in height and BSA ratio of FEV_T and FEF were observed. From the above results, it was suggested that forced expiratory flow, especially end portion of expiration, eras increased by treadmill exercise.

초고층 구조물의 기둥축소 현상에 관한 연구

윤석한,정은호 慶熙大學校 大學院 院友會 1997 高凰論集 Vol.21 No.-

Differential shortening of vertical members in high-rise buildings affect other structural members that have to be considered such as horizontal members and exterior cladding of many elements which affect the total amount of shortening, different loading history mainly comes from the different construction time. Shortening of 66 story concrete column and wall were investigated and compared according to the different construction time. Little difference was found between the total shortening of column and wall.

제주도 용천수의 지역별 수량변화

윤정수,박상운,강석수,현영진 제주대학교 환경연구소 1998 환경연구논문집 : 제주대 Vol.6 No.-

This study purposes to elucidate the effects of changes in precipitation and tide level on the spring water discharge quantity in Cheju Island. For this purposes. local and seasonal variations of discharge quantity have been measured at representive 19 springs covering the entire Island. In the middle mountain region, the discharge quantity is largely influenced by the precipitation, but it has a little relationship with the precipitation in the western region and the southern region. In the eastern region, influence of tide is larger than the precipitation, and the northern region is influenced by both precipitation and tide. In the entire study area, the spring water discharge reaches at maximum in the wet season of July, and shows minimum in the dry season from December to February. The discharge variation in the middle mountain and north regions is two to three times as large as that in the other regions. The comparison of the results of ths study with existing data shows discharge increase at the inch'onk'mul(about 6.000㎥) in the eastern region, Kwakgimul(about 7,000㎥) in the western region, Kangjungchun (about 11.000㎥ : WRDC), Jaguri(about 5,000㎥ : AFDC), Gongchunpo (about 3.000㎥) in the southern region, Yongyeanchun(about 1,500㎥) in the northern region, whde the discharge decrease at Sernurungmul(about 5,000㎥) in the eastern region, Ongpochun(about 10.000㎥) in the western region, Hwasun Dokmul(about 1,500㎥), Kangjungchun( about 28,000㎥ : AFDC), Jaguri(about 43,000㎥ ; WRDC) in the southern region, Sanjimul( about 3.500m3), Oleamul( about 6,200m3) in the northern region. In the Yongyeanchun, tide intimately influences quantity, electrical conductivity, level and temperature of spring water. The spring water in the Yongyeanchun discharges for 17 hours during the hgh tide, then undlscharged for 11 hours during the low tide.

상악 측절치의 치내치에 대한 증례보고 : REPORT OF 2 CASES

윤석희,이재천,김영재,장기택,한세현,김종철 大韓小兒齒科學會 2004 大韓小兒齒科學會誌 Vol.31 No.3

치내치(dens invaginatus)는 치아 발생 과정 중 경조직이 석회화되기 전에 법랑질 상피가 함입되어 생기는 치아 기형이다. 치내치는 함입된 정도에 따라다양한 형태학적 변이를 보이는데 이러한 기형은 미생물이 침입할 수 있는 통로가 될 수 있어 치수조직의 괴사와 치근단 농양 또는 치은 농양의 원인이 된다. 이러한 경우 근고나의 복잡한 해부학적 형태 때문에 근관 치료가 매우 어렵다. 본 증례는 상악 좌측 측절치의 동통을 주소로 내원한 두 명의 환아들에 관한 것이다. 첫 번째 증례는 수산화 칼슘제재를 이용한 근관치료를 시행하여 양호한 결과를 얻었고 두 번째 증례는 치아를 발거하였다. 발거된 치아는 미세전산화 단층촬영을 이용하여 해부학적 형태를 살펴보았기에 보고하는 바이다. Dens invaginatus is a malformation of tooth resulting from an infolding of the enamel epithelium during tooth development. This malformation shows a broad spectrum of morphologic variations. This invagination frequently allows the entry of irritants and microorganism, which usually lead to necrosis of the adjacent pulp tissue and then to periapical or periodontal abscess. Root canal treatment of such tooth is often difficult because of the unusual form and complicated pulpal space. This article reports 2 cases of dens invaginatus in maxillary lateral incisors. The first case was successfully treated with Ca(OH)₂. In the second case, involved tooth was extracted and this extracted tooth was observed using the micro-computed tomography.

한국의 수출과 실질소득 및 인적자본 간의 동태적 인과관계

정용석 동아대학교 동아시아연구원 2007 동아시아 : 비교와 전망 Vol.6 No.2

한국은 전통적으로 매우 높은 교육열과 수출지향공업화의 정책이 서로 상승작용을 하면서 높은 경제성장률을 이끌어 낸 국가로 인식되어 있다. 본고의 목적은 한국의 1968-2006년의 기간 동안 이들 3변수간의 인과관계의 존재를 살펴보고자 한 것이다. 이를 위해 본고는 한국의 실질소득과 수출 및 인적자본간의 공적분과 인과관계를 검정해 보고, 이를 확장하여 모형의 적합성과 안정성을 검토해 보았으며, 그 변수들 간의 외생성의 정도를 분산분해와 충격반응함수로써 고찰해 본 것이다. 공적분검정과 인과관계 검정의 결과는 다음과 같다. (1) 수출 혹은 인적자본이 종속변수일 때 실질소득과 수출과 인적자본 간에는 각각 공적분이 존재하였다. 하지만 인적자본이 종속변수일 때는 공적분 관계는 존재하지 않았다. (2) 장기에는 실질소득과 실질수출은 양방향 인과관계가 나타났으며, 인적자본은 수출과 실질소득 양자에 대해 인과관계를 나타내었다. (3) 단기에는 실질수출이 실질소득과 양방향 인과관계를 나타내었다. 그러나 수출과 실질소득 모두 인적자본에 대해서는 중립적으로 나타났다. The aim of this paper is to test the causal relationship between exports, real income and human capital using data for Korea over the period 1968?2006. For it, this paper used cointegration and error-correction modeling and extended this analysis to variance decomposition analysis and impulse response functions. The results of the test suggest that (1) real exports, human capital and real income are cointegrated when real exports or human capital is the dependent variable, but are not cointegrated when human capital is the dependent variable. (2) In the long- run, there is bi-directional Granger causality between real income and real exports. And there is uni-directional Granger causality running from human capital to real exports and real income. (3) In the short-run there is bi-directional Granger causality between real exports and real income.

중등학교 교과서의 농업·농촌 기능 분석 및 반영 방안

서우석,강대구,정진수,김절용,김재호,이윤조 한국농업교육학회 2007 농업교육과 인적자원개발 Vol.39 No.2

燃燒法에 의한 黑色鑛物중 硫黃의 定量에 관한 硏究

김연두,배준현,전천석 충남대학교 자연과학연구소 1984 忠南科學硏究誌 Vol.11 No.2

The method burning completely the sulfur, by using the vanadium pentoxide in a current of the oxygen free of the sulfur dioxide, is employed to form sulfur trioxide. The sulfur trioxide in this gas mixture is absorbed by hydrogen peroxide solution and then converted to sulfuric acid. The sulfur is determined by titrating the sulfuric acid with standard sodium hydroxide solution after eliminating the carbon dioxide on warming.