8주간의 수영훈련이 호흡순환기능에 미치는 영향

유승희,김복현,심성섭,박찬호 경희대학교 체육과학연구소 1995 體育學論文集 Vol.23 No.-

In this study, ten students of department of physical education in K unversity participated in 8-week-swimming training. With the figures of respiration and circulation shown before the training and after the trainging, the conclusion came out as follows after comparison and analysis of the changes in the stability and the maximum figures. 1)The respiration of one time ventilation(TVE, ㎖) Looking info the quantity of one lime ventilation In the rest, it came out 946.47㎖, meanwhile, after the training, it fell down to 878.17㎖, which is lower by 68.39㎖ and the the percentage of decrease is 7.78%. But as for the maximum figures, in came out 3117.70㎖, while after the training, it was 3219.10㎖ and that's higher by 101.4㎖ and the percentage of increase is 3.15%. 2)The oxygen uptake(VO2, ㎖/min) In the rest, the quantity of Q2 taken into the lung was 540.83m7/min before the training, but after the trainging, it showed 405.63㎖/min, which was lower by 135.20㎖/min, and the percentage of decrease is 33.33%. But as for the maximum figures, it was 3701.60㎖/min before the training, while after the training, it was 3885.30㎖/min, which Is higher by 183.7㎖/min and the percentage of· increase is 4.73%. 3)The rate of gas exchange(R)In the rest, the rate of gas exchange showed no big difference between before (1.03) and after (1.03) the training. But in the maximum figures, it was 1.42 before the training, while it was 1.45, which was higher by 0.03 and the rate of increase is 2.07%. 4)The oxygen uptake per weight(VO2/W, ㎖/kg/min)In the rest, the quantity of O2 per weight was 8.05㎖/kg/min before the training. But after the training, it was 5.99㎖/kg/min, which was lower by 2.06㎖/kg/min, and the rate of decrease is 34.39%. But in the maximum figures, it was 53.64㎖/kg/min before the trainging, while it was 58.80㎖/kg/min, which was higher by 5.16 and the rate of increase is 8.78%. 5)Heart rate(HR, beats/min)Looking Into the heart rate in the rest, it was 74.24beats/min before the training, but after the training, it was 70.84beats/min, which was lower by 3.4beats/min and the rate of decrease is 4.79%. But in the maximum figures, before the training, it was 187.25beats/min while it came out 194.69beats/min, which was higher by 7.44beats/min and the rate increase was 3.82%. 6)O2 pluse(VO2/HR, ㎖/beats)In the rest figures came out 6.10 before the training, while after the training, it was 5.72㎖/beats which was lower by 0.38 and the rate of decrease was 6.64%. But in the maximum figures, it was 19.78㎖/beats before the training, but after the training, while after the training, it was 22.54me/beats, which was higher by 2.76 and rate of increase is 12.24%.

마이크로그로브 형태에 따른 평활근 세포 운동 측정

유소영,박찬영,정석,김동익,이병붕,허세호,한동철,장준근 대한혈관외과학회 2002 Vascular Specialist International Vol.18 No.2

Purpose: The spreading, orientation, and chemotaxis the gradient of a chemoattractant of smooth muscle cells (SMCs) were studied on the micro-grooved substrata by the light, fluorescence and scanning electron microscopy. Method: Vertical-walled grooves were produced in silicon wafers by the micromachining technique. All grooves were 4~20㎛ deep and 10~80㎛ wide, SMCs were cultured on each microgroove and examined under stereo-microscope. Result: Cell clusters were markedly oriented by all the grooved substrata examined. Tim-lapse images acquired from CCD (Charge Coupled Device) showed that the grooves directed the migration of SMCs. There was no prominent difference in the migration speed of SMCs according to the grooves. All the cytoskeletal fibers were reoragnized in the same direction with grooves. Especially the alignments of microtubule and intermediate filaments were distinguished in the SMCs on the micro grooves. Conclusion: These results could be applied to the analysis of vascular restenosis and the development of artificial blood vessels.

압박 고 나사로 치료한 대퇴골 전자부 골절 : 고정 실패의 인자에 대한 분석 Analysis of Factors associated with Failure of Fixation

유찬훈,김홍태,변영수,남준모,조영호,문성건 대한골절학회 2002 대한골절학회지 Vol.15 No.4

목 적 : 압박 고 나사로 치료한 대퇴골 전자부 골절의 고정 실패에 영향을 미치는 요소에 대하여 분석하고자 하였다. 대상 및 방법 : 1995년 5월부터 2000년 7월까지 대퇴골 전자부 골절을 압박 고 나사를 이용하여 치료하고 1년 이상 추시가 가능했던 97예를 대상으로 하였다. 골절의 분류는 Jensen 분류법을, 골다공증의 정도는 Singh 지수를 이용하였다. 술후 방사선 검사에서 경체각, 정복 상태, 지연 나사의 대퇴골 두 내 위치, tip-apex distance(TAD) 및 지연 나사의 활강 거리를 측정하였고 고정 실패에 미치는 영향을 통계학적으로 분석하였다. 결 과 : 97예 중 17예(17%)에서 고정 실패가 발생하였고 그 중 지연 나사의 과도한 활강으로인한 경우가 15례(15.4%), 골두 천공 1얘, 10도 이상의 외반 변형 1예였다. 고정 실패의 발생과 80세 이상의 고령, 불안정성 골절, telescoping 정복, 원위 골편의 내측 혹은 전방 전위, 대퇴골 두 내 지연 나사의 위치와 밀접한 관계가 있었다. 결 론 : 압박 고 나사를 이용한 대퇴골 전자부 골절의 치료에서 고정 실패를 방지하기 위해서는 정확한 정복이 필요하고 대퇴골 두 내에서 지연 나사의 전방 위치를 피하는 것이 좋을 것으로 사료된다. Purpose : This study was performed to analyze the significant factors that may affect failure of fixation in trochanteric fractures of the femur treated with the compression hip screw. Materials and Methods : From May 1995 to July 2000, the authors analyzed 97 cases of trochanteric fracture of the femur treated with the compression hip screw and followed more than one year. We classified the fracture type by Jensen's method. We used Singh index for the degree of osteroporosis. In the post-operative radiograph, we checked neck-shaft angle, state of reduction, position of the lag screw within the femoral head, tip-apex distance, and sliding distance of the lag screw. The relationship between these factors and failure of fixation was statistically analyzed. Results : There were 17 cases(17.5%) of failure of fixation ; 15 cases(15.4%) of excessive sliding of the lag screw, 1 case (1%) of cutting out of the lag screw, and 1 case (1%) of valgus malunion. There were significant relationship between failure of fixation and old age over 80 , unstable fracture, telescoping reduction, anterior or medial displacement of the distal fragment, and anterior placement of the lag screw within the femoral head. Conclusion : Accurate reduction and avoidance of the placement of the lag screw in the anterior part of the femoral head were important factors to prevent failure of fixation in trochanteric fractures of the femur treated with the compression hip screw.

요추부 유합수술 후 가동인접분절의 후기변화

김홍태,강도원,유찬훈,정재호,장세앙 대한척추외과학회 1996 대한척추외과학회지 Vol.3 No.1

The spinal fusion in a lumbar region may influence biomechanically in the remained mobile segment to take over the lost motions Therefore the stress concentration on the adjacent segments may accelerate the degenerative changes, and then various late changes could occur. The aim of this study was to evaluate the late changes occuring in the adjacent segments to lumbar fusions. A retrospective review of radiographs and medical records was undertaken for 67 consecutive patients who had undergone various fusions in the lumbar region for various pathologic conditions. Included in this study were the patients who had performed active daily livings without any significant pain or disability after fusion and followed for a minimum of five years(up to 18 years with a mean of 8.3 years). The results of this study were as follows : The instability, disc narrowing, spinal stenosis, vertebral slipping, or isthmic defect were found in the adjacent segments to fusions in the patients who were followed longer, in L4-5 segment and above segment of fusion, and in the adjacent segments where a degenerative changes existed before surgery and where the angular motion increased considerably in a few years after fusion. The symptoms of these patients were responded well with conservative theraphy and no patient needed any surgical theraphy during these follow-up periods.

광주지방 부유분진의 농도변화

柳贊洙,金銀貞 조선대학교 기초과학연구소 1996 自然科學硏究 Vol.19 No.1

This study analyzes the diurnal, seasonal and annual variations of TSP in Kwangju and investigates the relation of TSP to air temperature and to RH. The data used in this study are observed from Meteorological Office and Environmental Bureau in Kwangju and the period of observation was from Jan. 1, 1991 to Dec. 31, 1993. The diurnal variation of TSP shows two vibration curves and the diurnal means are 67.9㎍/㎥. The time the diurnal maximum value is shown is 10:00 A.M. and that diurnal minimum value is shown is 06:00 A.M. The diurnal range is 55.9㎍/㎥. In this diurnal variation of TSP by season, the concentration is high in winter, spring, autumn and summer in order. The annual variation of TSP shows one vibration curve, the maximum value in April and the minimum one in August. The annual range is 43.6㎍/㎥. As a result of the regression analysis for examining the relations of TSP to air temperature and to RH, a regular polynomial regression expression is made on time series. TSP has a great significance in the diurnal variation with air temperature, but it has a little significance in the annual variation. TSP and RH have a significance in the diurnal and annual variation and show the inverse propertion with them.

韓國河川의 初期損失 雨量과 流量遞減曲線에 관한 硏究

金熙鐘,全裕燦,金一龍 東亞大學校 1986 東亞論叢 Vol.23 No.1

Water discharge recession curves of runoff were composed for 6 basins from long term discharge data which has been examined on their reliability. The attenuation constant of a master recession curve between base water-discharge and initial storm loss was compared with a simple index made from geographic gradient and geologic matrix of each basin. The two values seem to have correlation, provided that the river density is taken into account. It strongly suggests that the quantative relationship between master recession curve and geography and geology of the basin would possibly be existent. The results obtained are summarized as follows; 1. a relationship between Initial storm Loss and Base Water-Dischre; r=0.74, 0.83, 0.77, 0.99, 0.98, 0.89, t=95%over 2. a relationship between constant of Initial Storm Loss (c) and Recession Coefficient; r=0.82 t=95%over 3. a relationship between River Density and Recession Coefficient; r=0.83, t=95%over. 4. a relationship between Average Gradient of the River Basin and Recession Coefficient; r=0.83, t=95%over 5. a relationship between Shape Factor and Recession Coefficient; r=0.823, t=95%over.

韓國河川의 流出率과 流出指標로서의 洪水直前 流量

金熙鍾,柳又秀,金佳鉉,申東守,韓健模,全裕燦 東亞大學校 大學院 1984 大學院論文集 Vol.9 No.-

This paper is a study on relation between run-off ratio and antecedent discharge, run-off ratio and antecedent discharge per unit area, antecedent discharge and antecedent precipitation, by the data from the five major river basins in Korea and the small river basins in Pusan. The Nak-Dong rivers(An-Dong upper stream) f=0.4780+0.0124 ln qA r=0.99 qA=0.3368e0.1101R r=0.99 f=0.5793+0.0146 ln(qA/A) r=0.99 The Nak-Dong rivers except Ga-song station f=0.2017-0.0840 ln qA r=0.75 f=0.7012+0.0750 ln(aA/A) r=0.71 The Han rivers f=-0.0035+01267 on qA r=0.75 f=1.1311+0.1263 ln(qA/A) r=0.71 L=302.9064-43.8490 ln qA r=0.84 The Geun rivers(Mu-sin Cheon) f=0.295+0.1823 ln qA r=0.93 f=0.8417+0.1823 ln(qA/A) r=0.93 L=40.0456+62.0346 ln qA r=0.94 The Yeong-san rivers f=0.3766+0.0598 ln qA r=0.79 f=0.8084+0.0599 ln(qA/A) r=0.79 The Seom-jin rivers f=-1.3875+0.6505 ln qA r=0.92 f=2.1633+0.3465 ln(qA/A) r=0.76 Small river basin in Pusan f=0.3635+0.1120 ln qA r=0.87

최대운동부하시 단련자와 비단련자의 호흡순환기능 비교연구

유승희,김복현,송종국,윤형기,박찬호 경희대학교 체육과학연구소 1996 體育學論文集 Vol.24 No.-

We studied the differences of cardiorespiratory function of the untrained group and the trained group. The findings are following: 1.In ventilation, trained group was higher than untrained group. In addition, there was significant difference(p〈.001) at 60% and 85% exercise levels and All-out time. 2.In respiratory rate, tranined group was higher than untrained group. In addition, there was significant difference(p〈.01)at 85% exercise level and All-out time. 3.In respiratory gas exchange, trained group was lower than untrained group. In addition, there was significant difference(p〈.01) at All-out time. 4.In oxygen intake per weight, trained group was higher than untrained group. In addition, there was significant difference(p〈.001) at 40%, 60%, and 85% excercise levels and All-out time. 5.In heart rate, trained group was lower than untrained group. In addition, there was remarkable difference(p〈.0901) at rest.

朝鮮大學校 天文臺 設置를 위한 基礎資料 調査와 YZ Cassiopeiae의 光電觀測

金永成,柳贊洙 조선대학교 기초과학연구소 1988 自然科學硏究 Vol.11 No.1

This paper indicate the best sites for setting up an Chosun univesity observatory by studing topography, geology, and the climatological elements. In the survey of the topography. Traffic condition, photographical condition, elevation surveys are examined. In the survey of the geology. Bed rocks and its developments are examined. In the survey of the climatology. Observational records of the climatological standard stations and auxiliary stations in the studied areas are examined. Is survey elements are mean air temperature, precipitation, maximum wind speed, humidity, duration of sunshine, foggy days, cloudy days clear days, etc. In the results. Songhak mountain Kwangsan-gu, Kwangju is more suitable. The eclipsing nature of YZ Cassiopeiae(HD 4161, mag. 5.59, Sp.A2, α= OO^h 39^m, δ=+74˚ 26' 1900) was discovered by Stebbins(1924). A total of 1628 Photoelectric observation(814-yellow 814-blue) is made from 1983 to 1987, at Yonsei university observatory. Almost complete light curve which coincide to previous authors are grain. Astrophysical computing data of YZ Cas are coincide with another paper.

해안서식 어패류 중 유해중금속 함량에 관한 연구 (Ⅰ)

유영찬,정진일,박유신,이종숙,인상환,최동기,김동우 內務部 國立科學搜査硏究所 2002 國立 科學 搜査 硏究所 年報 Vol.34 No.-