시상 뇌졸중 후에 발생되는 중추성 동통 : 임상적-방사선학적 특징에 대한 연구

오상근,이애영,김건익,김제,김재문 대한신경과학회 1998 대한신경과학회지 Vol.16 No.2

고교야구선수의 동계훈련이 심폐기능에 미치는 영향

장명재,박성영,김승환 경희대학교 체육과학연구소 1999 體育學論文集 Vol.27 No.-

To evaluate the effect of winter intensive training on pulmonary function in high school baseball players, comparisons of various ventilatory parameters were made before and 3 months of winter intensive training. The subjects were 18 members of a high school baseball players with mean age and caller of 6.45 and 17 years, respectively. The following were mainly observed by spirometry for the study ; respiratiory rate, vital capacity(VC), maximum voluntary ventilation(MVV), forced expiratory volume for 1 second(FEV1), percent FEV1 to forced vital capacity (FEV1%) and forced mid-expiratory flow(FEF25-75%). The result obtanied are summarized as follow. 1.Resipratory rate, tidal volume, forced viatl capacity, 1FEV%, FEF50% and FEF75% showed no significant difference between before and after. 2.MVV in after was significantly(p〈.001) increased to 166 l/min comparing with 136 l/min in before. 3.1FEV in after was significantly(p〈.05) Increased to 4.46 l comparing with 3.76 l in brfore. 4.PEF in after was significantly(p〈.05) increased to 10.40 l/sec comparing with 9.18 l/sec in before. 5.FEF25% in after was significantly(p〈.01) increased to 9.30 l/sec comparing with 8.08 l/sec in before. This suggests that enhanced venyilatory functions in high school baseball players after winter intensive training are primarily due to increased in MVV caused by increase in respiratory muscle strength.

운동선수의 심폐기능 및 혈중 혈당과 젖산에 관한 연구

장명재,박상찬,허정행,김명일 경희대학교 체육과학연구소 1999 體育學論文集 Vol.27 No.-

The purposes of this study were to analyse and compare the changes of cardiorespiratory function and blood glucose and lactate in rest time and recovery period. The subject in this study were eight male gymnastic athletes(G1) and eight male soccer players(G2) of K University. During the study was measured, compared and analysed the cardiorespiratory function using treadmiill and analysed the blood lactate and glucose using the YSI 2300(start plus). After all of the process we arrived to following conclusions: 1.Cardiorespiratory function The maximum ventilation during exercise showed a very significant difference(p〈.01) and the predominant order of the mean value of this variable during exercise was G1(103.4±8.41l/min) and G2(121.9±11.36l/min). The respiratory rate in rest time showed a very significant difference(p〈.001) and the predominant values were G1(17.8±2.92l/min) and G2(13±1.07n/min). The oxygen uptake in rest time showed a significant difference(p〈.05) and the predominant values were G1 (328.4±49.58ml/min) and G2(275.3±17.97ml/min), and the maximum oxygen uptake during exercise showed a very significant difference(p〈.001) and the predominant values were G1(2906.9±236.66ml/min) and G2(3814±251.37ml/min). The maximum carbon dioxide production during exercise showed a very significant difference(p〈.001) and the predominant values were G1(3827.9±418ml/min) and G2(5014.5±435.06ml/min). The oxygen uptake per weight in rest tome showed a significant difference(p〈.001) and the predominant values were G1(4.7±.88ml/kg/min) and G2(3.7±.36ml/kg/min). The oxygen uptake per weight during exercise showed a very significant difference(p〈.001) and the predominant values were G1(45.1±2.93ml/kg/min) and G2(54.1±4.8ml/kg/min). The oxygen pulse in rest time showed a significant difference(p〈.05) and the predominant values were G1(4.8±.63ml/beats), G2(4.2±.39ml/beats) and the maximum oxygen pulse during exercise showed a very significant difference(p〈.001) and the predominant values were G1(15.3±1.13ml/beats) and G2(20.5±1.25ml/beats). The continuous exercise time showed a significant difference(p〈.05) and the predominant values were G1(16.24±1.67min), G2(19.98±4.16min). 2.The changes of blood glucose and lactate of pre and post-excercise and recovery period: There was not significant difference of blood glucose between rest time and just after exercise and the predominant values after 10 minutes, were G1(4.3±.44mmol/l), G2(5.4±.73mmol/l) and after 20 minutes, were (4±.87mmol/l) and (5.1±.80mmol/l) respectively, and the blood glucose value showed a very significant difference(p〈.05). The blood lactate showed a very significant difference(p〈.05) and the predominant values in rest time were G1(4.5±1.42mmol/1), G2(3±.89mmol/l) and just after exercise, 10 and 20 minutes the lactate did not show significant differences. 3.The systolic blood pressure showed a very significant difference(p〈.05) and the predominant values were, after 20 minutes, was G1(5.1±46mmHg), G2(4.2±1.69mmHg).

운동이 시각 장애 아동의 보행 역학에 미치는 영향

배성제 춘천교육대학교 초등교육연구소 2002 敎育硏究 Vol.19 No.-

초등학교 학생의 100m 달리기시 최고 속도 및 피로 구간의 운동역학적 변인 분석

배성제 춘천교육대학교 예체능교육연구소 1998 예체능교육연구 Vol.3 No.-

원발성 진챙성 실어증 1례

이애영,오상근,김제,김재문 대한신경과학회 1998 대한신경과학회지 Vol.16 No.2

축구선수의 Detraining과 Retraining이 혈청지질 및 호르몬농도에 미치는 영향

정정화,박재현,채종훈,성혜련,황지인,윤미숙,노금선,윤종관,윤영학,노순덕,정경숙,박일규,김은희,박현태,박상갑 대한스포츠의학회 1999 대한스포츠의학회지 Vol.17 No.1

The purpose of this study was to investigate the effects of detraining and retraining on serum lipid and hormones in soccer players. Subjects were seven male high-school soccer players. V˙O_2max was determined for each subjects by administering a treadmill test(initial speed: 90m/min, grade: 5%, increasing speed per 3 min: 30m/min). Serum lipid(T-C, TG, HDL-C LDL-C) and hormones(epinephrine, norepinephrine, growth hormones, cortisol) were assayed pre and post detraining in 10, 20, 30 days after retraining. The repeated ANOVA was used to determine significant differences. The 0.05 level of significance was as critical level for the study. The results of the study were as follows: 1. V˙O_2max(ml/min) were 3576.3±204.2ml/min pre detraining, 3234.1±198.9 ml/min post detraining. There are significant(p<.05) difference between pre and post detraining. In 10, 20, 30 days after retraining, V˙O_2max(ml/min) were 3601.4±170.9 ml/min. There were significantly(p<.05) increased in retraining periods. 2. V˙O_2max(ml/kg/min) were significantly(p<.05) decreased from 62.3±2.9 ml/kg/min to 55.9±4.7 ml/kg/min in detraining. In 10, 20, 30 days after retraining, V˙O_2max(ml/kg/min) were 62.4±3.4ml/kg/min, 62.7±2.3ml.kg/min, 67.3±7.2ml/kg/min respectively. There were significantly(p<.05) increased in retraining periods. 3. T-C were significantly (p<.05) increased from 166.6±8.5mg/dl to 175.3±10.3 mg/dl in detraining. In 10, 20, 30 days after retraining, T-C were 160.1± 3.2mg/dl, 156.7±3.7mg/dl, 140.3±9.0mg/dl. There were significantly(p<.05) decreased in retraining periods. 4. HDL-C were 61.4±6.6mg/di pre detraining, 5.3±6.6mg/dl post detraining. There are significant(p<.05) difference between pre and post detraining. In 10, 20, 30 days after retraining, HDL-C were 56.9±7.1mg/dl, 56.4±9.2mg/dl, 57.7±9.1mg/dl respectively. There were no significant difference in retraining periods. 5. The hormones(epinephrine. norepinephrine, growth hormone, cortisol) were changed as same patterns. Epinephrine were 26.0±7.0[g/ml pre detraining, 24.6±3.2pg/ml post detraining. In 10, 20, 30 days after retraining, epinephrine were 26.9±5.6pg/ml, 30.6±6.2pg/ml, 29.4±5.6pg/ml respectively. There were no significant difference in retraining periods. In conclusion, HDL-C, epinephrine, norepinephrine, growth hormone and cortisol were decreased, T-C, LDL-C and TG were increased in detraining. But HDL-C, epinephrine, norepinephrine, growth hormone and cortisol were increased, T-C, LDL-C and TG were decreased in retraining.

폴리메틸비닐케톤 및 메틸비닐케톤을 포함하는 공중합체들의 합성과 물성에 관한 연구

김영민,오상훈,조원제 부산대학교 공과대학 1987 硏究報告 Vol.34 No.-

The homopolymerization of methyl vinyl ketone was carried out with AIBN as an intiator in benzene under various conditions. From the result of kinetic investigation of methyl vinyl ketone, a rate equation was obtained. d[M] -------- = k_(p)[M][I]½ dt The overall activation energy for the polymerization was found to be 7Kcal/mole. Molecular weights of poly (methyl vinyl ketone) were measured by the Cannon-Fenske viscometer and GPC. Plot of intrinsic viscosity [η] versus Mw on a double logarithmic graph indicated the following equation [η]=77×10^(-5)Mw^(0.72) Poly (acetyl acetylene) was obtained by the reaction of poly (methyl vinyl ketone) with phosphorus oxychloride in chloroform at 0℃ under various reaction time. The radical copolymerizations of methyl vinyl ketone(MVK) with methyl methacrylate(MMA) and methyl acrylate (MA) were carried out with AIBN as an initiator at 50℃ in bulk. The specific extinction coefficients on poly(MVK-co-MMA) and poly (MVK-co-MA) were measured by means of UV spectrophotometer at 288nm in THF. From the calibration curves obtained by the different concentration ratios of each homopolymers, the following equations were derived. ε=0.0153+5.99×10^(-3)χ for poly (MVK-co-MMA) ε=0.112+1.102 χ for poly (MVK-co-MA) where ε is the specific extinction coefficient of the copolymer and χ is the weight fraction of MVK unit in the copolymer. The following monomer reactivity ratios were determined. r₁(MVK)=0.5 and r_(2)(MMA)=0.95 for poly (MVK-co-MMA) r₁(MVK)=1.85 and r_(2)(MA)=0.99 for poly (MVK-co-MA) From DSC thermal analysis, glass transition temperature (T_(g)) of PMVK and PMMA are 307˚K and 386˚K, respectively. The glass transition temperatures of copolymers were increased with increasing MMA component in copolymer. The conductivity of poly (acetyl acetylene) increased from 10^(-6) Ω^(-1) cm^(-1) to 10^(-4) Ω^(-1) cm^(-1) with increasing the reaction time of poly (methyl vinyl ketone) and phosphorus oxychloride. In the reaction of poly (MVK-co-MA) with phosphorus oxychloride in chloroform at 0℃, the conductivity of the obtained copolymer was 10^(-6) Ω^(-1) cm^(-1).

반도성 산화물 유리의 전기적 거동에 관한 연구

이희수,오영제,박상철 연세대학교 대학원 1985 延世論叢 Vol.21 No.4

The glass formation region of V2O5-P2O5-Fe3O4 was determined, and the electrical conductivity and activation energy of the resultant semiconducting glass were measured with varying content of Fe3O4(10~20 mole %). In V2O5-P2O5-Fe3O4 system, the glass formation was measured as Fe3O4 content increases, while it was widened as P2O5 content increases. Increasing amount of Fe3O4 enhanced the glass transition temperature and the softening point. The electrical conductivity of V2O5-P3O5 glass was increased with some part of P2O5 replaced by Fe3O4, and was decreased with some part of V2O5 replaced by Fe3O4. And the activation energy showed the opposite tendency.

Slurry 반응조를 이용한 퇴적준설물내 질소의 생물학적처리에 관한 연구

정연규,배범한,김용학,전제철,엄성범 연세대학교 산업기술연구소 2002 논문집 Vol.33 No.2

The eutrophication control and prevention can be accomplished through removal of the nutrients known as main contributors. However, for the case of lakes and rivers where significant amounts of the nutrients were already entered, there should be a limit on the eutrophication control. Accordingly, it is indispensable to remove the nutrients present in sediments in view of both obtaining water resources and preserving the environment, and, therefore, this study focuses on nitrogen removal among the nutrients in sediments. For nitrogen removal in sediments, nitrification and denitrification were applied as a biological removal process to a slurry reactor available for bioremediation of contaminated soils. With approx. 508㎎/㎏ of T-N concentration in the treated sediments, about 50 % of initial nitrogen concentration was accordingly removed after total 9-day operation of a 10 %-slurry reactor under oxic and anoxic conditions for 4 hrs and 2 hrs, respectively. This means that 25 % of T-N leachates in physical fractions were removed from the sediments through the nitrification and denitrification, and additional 25 % were removed under the same process after extracted from the sediments by a biological mechanism such as organic biodegradation. As a result, 20 % larger nitrogen amounts added were removed after leached from the sediments, which was probably caused by the fact that biological activity was increased by optimization of operating conditions as well as that mineralization and ammonification of organic matters in sediments were elevated by the enlarged population of microorganism after injection of organic C-sources and trace elements. The denitrification was more activated after the injection of organic C-sources and trace elements. The leaching amount of ammonium also increased steeply. The nitrification rate of the slurry reactor was 189 ng N/min·g in dry weight.