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      • 中山間地(標高 250m)에서 참깨 播種適期와 晩播限界期에 關한 硏究

        孫錫龍,崔仁植,趙鎭泰,權圭七,金仁培,李濟弘 충북대학교 농업과학기술연구소 1986 農業科學硏究 Vol.4 No.-

        In order to determinate the optimum plating time and its limitation, an eary harvest and high yeld sesame varety-Poong Nyun Ggae-was cultivated on the semi-mountainous area of 250 meter above sea level. The variety was cultivated with a single and double cropping system. The single cropping plots were covered with transparent polyethylene film on 1st , 11th and 21th in May and the double cropping plots were covered with PE film on 5th, 15th, 25th in June respectively and on 5th July. The results obtained are as follows; Yield of the plot planted on 1st May was 59kg/10a. In compaorisn with this, yields were increased 16% and 25% in plots planted on 11th and 21th May, respectively. The optimum planting time was considered near 20th May for the single cropping system and it should be considered before 15th June for the double cropping system in the semimountainous area.

      • 프로 스포츠 활동에서의 윤리적 가치 일탈의 문제

        정의권,임석원 중앙대학교 스포츠과학연구소 2003 體育硏究 Vol.- No.19

        The essence of sportsmanship as applied to athletics can be determined by the application of the same principle. Honorable victory is the goal of the athlete and, as a reretended to a certain moral relevancy, although its precise place among the moral virtues has been uncertain. In spite of this confusion, distinguished advsult, the code of the athlete demands that nothing be done before, during, or after the contest to cheapen or otherwise detract from such a victory. Fairness or fair play, the pivotal virtue in athletics, emphasizes the need for an impartial and equal application of the rules if the victory is to signify, as it should, athletic excellence. Modesty victory and a quiet composure in defeat testify to an admirable and extraordinary self-control and, in general, dignify and enhance the goal of the athlete.

      • 보디빌딩 선수들의 筋力과 心肺機能에 관한 硏究

        李錫仁,鄭義權 중앙대학교 스포츠과학연구소 1994 體育硏究 Vol.- No.7

        The purpose of this study was to observe the effects of Strength and cardiorespiratory function of man bodybuilders. Athletes group was that ten bodybuilders of J University in Seoul and Non-Athletes group was that ten male students of J University did not especially player activity. Bodybuilders career was about four years. The result of statistics data were as follows; 1. Comparison of Strength Back strength showed significant difference (p<0.001) between groups. Grip strength. Bench press and Squat showed significant diffence (p<0.001) between groups. 2. Comparison of Body weight, Hearrt Rate., HR max, VE max, VO_2 max, and O_2 pulse. Body weight and rest heart rate showed significant difference (p<0.01) between groups and VO_2 max showed significant difference (p<0.001) between groups. But O_2 pulse showed significant difference (p<0.001) between groups. 3. Comparison of Blood pressure During rest systolic blood pressure and diastolic blood pressure did not showed significant difference between groups. During exercise systolic blood pressure showed sihnificant difference (p<0.001) but during exercise diastolic blood pressure did not showed between groups.

      • 水稻의 穗發芽性에 關한 硏究 (Ⅱ) 栽培時期 移動에 따른 穗發芽性

        趙東三,孫錫龍,金鍾煥,尹太,朴成圭,權圭七 충북대학교 농업과학기술연구소 1988 農業科學硏究 Vol.6 No.1

        This study was conducted in 1987 to investigate the viviparous germination in rice. Six varieties, i. e., Daeseongbyeo, Sangpungbyeo Hwaseongbyeo, Taebagbyeo, Chilseongbyeo and Samgangbyeo were used for this experiment. Seedlings were transplanted on May 25 and dune 5 and panicles were harvested 5 times with 5 days interval beginning 25 days after heading. Panicles were incubated at normal temperature right after harvest to observe the germination. Rate of viviparous germination of Japonica type was higher than that of Indica type. The early varieties such as Daeseongbyeo, showed high viviparous germination. Rate of viviparous germination of May 25 transplanting was higher than that of June 5 transplanting. Viviparous germination rate of Japonica type appeared to be increased as the harvesting was postponed. On the other hand, Indica type didn't show viviparous germinate. Based on this study the optimum harvesting time of tested varieties appeared to be between 40 to 45 days after heading.

      • KCI등재

        피조개 발의 점액질에 대한 조직화학적 연구

        최병태,조기진,홍말숙,정권순,조운복 釜山大學校 師範大學 1995 교사교육연구 Vol.31 No.-

        피조개 발의 조직학적 구조는 hematoxylin-eosin염색 및 Weigert iron hematoxylin염색을, 점액질 성상을 검색하기 위하여 PAS반응, diastase 침지 후 PAS반응, alcian blue pH 2.5염색, alcian blue pH 1.0염색, alcian blue pH 2.5-PAS염색, alcian blue pH 1.0-PAS염색, aldehyde fuchsin pH 1.7-alcian blue pH 2.5염색 및 0.25% toluidine blue염색을 실시하였다. 피조개의 발은 상피, 상피하결합조직 및 근층으로 이루어져 있었으며 상피는 단층섬모원주세포로 되어 있었다. 상피하결합조직 및 근층에 다세포성 점액선인 발선이 발달되어 있었고 도관은 결합조직과 상피세포를 거쳐 개구되어 있었다. 근층은 종주근, 수직근 및 횡근섬유로 구성되어 있었다. 점액질의 조성을 보면 상피세포섬모에는 sialomucin만을, 상피세포는 중성점액질만 함유하고 있었다. 상피세포 및 결합조직내 점액도관에는 산성과 중성점액질의 혼합성인 것과 산성점액질만 함유한 것이 혼재하나 전자가 더 많았다. 산성점액질의 성상으로 보아 대부분이 강 sulfomucin을 가지며 일부는 약 sulfomucin과 sialomucin의 혼합성이었다. 대부분 발선의 점액선포에 대한 점액질 조성은 점액도관과 유사하였으나 일부 상부발선의 점액선포는 중성점액질만을, 하부발선의 점액선포는 sialomucin만을 함유하였다. This study was performed to investigate the histological structure and the histochemical properties of the mucosubstances in the foot of Anadara broughonii. For the histological structure, hematoxylin-eosin and Weigert iron hematoxylin staining were used. The mucosubstances stained with PAS, PAS-diastase, 0.25% toluidine blue, alcian blue pH 2.5, alcian blue pH 1.0, alcian blue pH 2.5-PAS, alcian blue pH 1.0-PAS, aldehyde fuchsin pH 1.7-alcian blue pH 2.5 methods. The foot was composed basically of three layers: epithelium, subepithelial connective tissue and muscular layers. The foot was lined by simple ciliated columnar epithelial cell. Foot glands consisted of multicelluear mucous acini were present in the subepithelial connective tissue and muscular layer. The mucous duct of foot glands was distributed from connective tissue to epithelial cells, and open onto the surface of the foot. The foot muscle traveled in three planes as longitudinal, transverse and vertical muscle fiber. About the properties of mucosubstances on the foot, cilia of epithelial cell contained sialomucin only and epithelial cell neutral mucosubstances only. Most of mucous duct within epithelial cells and connective tissue showed a mixture of acidic and neutral mucosubstances, while a few mucous ducts were contained acidic ones only. Among acidic mucosubstances, notable strong sulfomucin were found in most mucous cell of duct, and a mixture of weak sulfomucin and sialomucin appeared in a few cells. The properties of mucosubstances in the food glands were similiar to those of mucous duct. But a few mucous acini contained neutral mucosubstances and sialomucin only in upper and lower portion of foot gland, respectively.

      • KCI등재

        전기철도 시스템의 9~150 ㎑ 대역에서의 RFI 노이즈 전달 경로 분석

        권석태(Suk-Tai Kwun),정연춘(Yeon-Choon Chung) 한국전자파학회 2012 한국전자파학회논문지 Vol.23 No.12

        철도 시스템에서 방사하는 9~150 ㎑ 대역의 자기장 복사 방출은 철도 시스템 주변의 무선 설비 등에 영향을 주어 통신 성능의 저하나 오동작을 초래할 수 있다. 본 논문에서는 전기 철도 시스템에서 방사하는 9~150 ㎑ 주파수 대역의 전자파 노이즈에 대한 등가 회로 모델을 소스 및 전달 경로 분석을 통하여 제안하고, 철도차량의 견인 구동 시스템과 변전 시스템에서 발생하는 수 ㎑의 스위칭 노이즈가 급전선과 선로의 루프 회로를 통하여 방사됨을 확인하였다. 또한, 실제의 구리-국수 간 중앙선 철도의 RC Bank의 효과를 분석하여 이러한 회로 등가 모델의 유효성을 검증하였고, 급전선과 선로 사이에 적정한 용량의 커패시터를 장하함으로써 효과적으로 설계 대책이 가능함을 보였다. The interaction of magnetic field in the frequency range of 9~150 ㎑ radiating from a railway system with wireless systems has been the cause of radio frequency interference. In this paper, the equivalent circuit model of the RFI noise is proposed through source and transfer path analysis, and it is confirmed that the switching noise of several ㎑ that occurs a vehicle traction drive system and a substation is radiated by forming the loop circuit with a feeder line by a rolling stock. And the validity of the proposed equivalent circuit model is verified by analyzing the effects of RC banks installed in the real railway between Guri and Guksu stations, the RFI noise can be effectively mitigated by loading suitable capacitance between rail and feeding line.

      • 가토 근피판에서 허혈성 손상 방지를 위한 UW 관류제 사용의 효과

        서우석(Woo Suk Suh),권우형(Woo Heung Kwun),김상운(Sang Woon Kim),이수정(Su Jung Lee),권굉보(Koing Bo Kwun) 대한두경부종양학회 1993 대한두경부 종양학회지 Vol.9 No.1

        저자들은 뉴질랜드산 흰 가토의 대퇴부에 총 대퇴동맥의 분지를 영양혈관으로 하는 비복근을 이용한 유경 근피판을 만든 후에 영양혈관을 차단 직전과 12시간 동안의 허혈 기간을 가진 후 이 영양혈관으로 생리 식염수로 관류하여 씻어낸 대조군과 urokinase로 관류한 비교군 I, 최근 개발된 인체의 장기 이식시 사용되는 장기(organ) 보존용제인 UW용액을 이용한 비교군 II, UW용액과 pentoxifylline용액으로 관류한 비교군 III에서 재관류 12시간 후에 허혈 및 괴사 정도를 육안적인 관찰과 근육의 전기 자극 검사, TTC 염색, Wet/Dry 무게비 등으로 비교 분석하여 다음과 같은 결과를 얻었다. 육안적 소견상 대조군과 urokinase 사용군에 비해 비교군 II와 III에서 괴사가 적었으며(p 1.76±1.01,2.36±\1.02 로 차이가 없었으나 비교군 II와 III에서 각각 3.54±0.93,3.49±1.37gm/mm²으로서 대조군에 비해 근육의 강직도가 의의있게 강하게 나타났다(p 4.55±0.37,4.33±0.36 으로 차이가 없었으나 비교군 II와 III는 각각 3.84±0.29,3.75±0.48 로 대조군과 비교군 I에 비해 부종이 적음을 나타내었다(p<0.05). The benficial effects for perfusion in the preservation of free flaps have been controversial in the clinical and experimental field until now. This study was undertaken to observe the effect of UW solution. a recently developed. high molecular weight. organ perfusion solution. for protection of ischemic injury in normothermic free myocutaneous flaps. Forty rabbits were used in this sutdy. A 1x2x1cm sized gastrocnemius myocutaneous flap based on the feeding vessel from common femoral artery was made. The author set up the ischemic time for 12 hours in these flaps. The flap was washed out with normal saline(control grop, n=10), urokinase(comparative group I, n=10), UW solution before ischemic time(comparative group II, n=10) and UW solution before ischemic time and pentoxifylline before reperfusion(comparative group III, n=10). Afterthen, reperfusion was made for 12 hours. After this procedure, we checked the degree of ischemia and necrosis of myocutaneous flap by gross finding, electrical stimulation test of muscle, triphenyltetrazolium chloride staining and wet/dry weight ratio. The degree of necrosis of comparative group II and III were lesser than control and urokinase group in gross finding(p 1.76±1.01) and urokinase( 2.36±\1.02 ) group however the muscular power of comparative group II( 3.54±0.93) and III( 3.49±1.37gm/mm²) demonstrated significantly higher than control group(p 4.55±0.29) and III( 3.75±0.48) were scored significantly lesser than control and urokinase group (p<0.05). These results suggest that perfusion washout with UW solution improves the viability of normothermic free myocutaneous flap by inhibition of cellular swelling.

      • SCOPUSKCI등재
      • KCI등재

        장시간 수술에 따른 하지 정맥압의 변화

        권굉보,서보양,권우형,김범석 대한혈관외과학회 2001 Vascular Specialist International Vol.17 No.1

        Purpose: Deep vein thrombosis and pulmonary embolism are common and potentially fatal complication among hospitalized patients. The first clinical manifestation of venous thromboembolism may be fatal pulmonary embolism. Therefore, some form of prophylaxis is warranted for patients at risk. Prolonged major surgery is well known as high risk factor in development of venous thromboembolism and venous thromboembolism following surgery remains a significant health care problem. But little data are available conceming the changes of venous hemodynamic during prolonged surgery. Method: To access the relationship of the lower leg venous congestion that occurred during prolonged and position-fixed surgery to the development of postoperative deep vein thrombosis, the venous pressure of lower leg were measured continuously. A flexible indwelling angiocatheter was inserted into the greater saphenous vein near ankle area and venous pressure was measured by pressure monitor. The data of patients (experimental group: n=10) who performed spinal operation in Jack-Knife position over 180 minutes, healthy volunteets (n=10) and patients (venous hypertension group) who diagnosed as lower leg deep vein thrombosis (n=7), chronic venous insufficiency (n=3) were collected and analyzed. Result: The mean age was 34 years old in experimental group and the patients were 7 males and 3 females. The mean lower leg venous pressures of healthy volunteer in Jack-Knife position were 42.89±3.52 mmHg at 30 minutes. In acute deep vein thrombosis and chronic venous insufficiency patients, the mean venous pressures were 73.14±4.78, 57.33±2.52 mmHg at 30 minutes and these data were statistically significant compared with control group (P $lt;0.05). In experimental group, the changes of the mean venous pressures at 30, 60, 90, 120 and 180 minutes were 48.78±2.38, 45.89±2.09, 45.33±2.24, 45.11±2.03 and 46.33±2.18 mmHg and these data were not statistically significant compared with control group. There was no postoperative development of deep vein thrombosis. Conclusion: The surgical factors (prolonged operation time, fixed position) and anesthetic factor may not play a major role in development of postoperative deep vein thrombosis and other postoperative factors will intervene the development of deep vein thrombosis.

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