제주 우수 육상경기 선수들의 년중 훈련효과 분석 및 처방

김철원,임상용,김승곤,오만원,김성찬,이창준,남사웅,이세형,류재청 濟州大學敎 體育科學硏究所 1996 체육과학연구 Vol.2 No.-

The study was undertaken to analysis, evaluate, and prescribe t h e annual effect of training of periodically anaerobic and aerobic motor ability for Che-Ju representive team of elementary, middle and high school athletes. first. the performance can be obtained when it was prescribed proper training after analysis of physical fitness by each events. second, individually fitness. scientific analysis. prescription. proper management of athlete will be necessary to apply. In addition to physiology aspect, it is essential to consider sport biomechanics. sport psychology when we prescribe specific events and necessary approach in demension coach-athlete-researcher for individual.

제주 우수 수영 선수들의 년중 훈련효과 분석 및 처방

김철원,임상용,김승곤,오만원,김성찬,이창준,남사웅,이세형,류재청 濟州大學敎 體育科學硏究所 1996 체육과학연구 Vol.2 No.-

The study was undertaken to analysis, evaluate, and prescribe the annual effect of training of periodically anaerobic and erobic motor ability for Che-Ju representive team of elementary, middle and high school athletes, first the performance can be obtained when it was prescribed proper training after analysis of physical fitness by each events, second individually fitness scientific analysis. prescription. proper management of athlete will be necessary to apply.

Fe-Cu계 합금분말을 이용한 Fe-Cu-Sn계 소결합금의 제성질

원용신,김윤채 三陟大學校 産業科學技術硏究所 2000 産業科學技術硏究論文集 Vol.5 No.-

In order to reduce the sintering temperature of iron based sintered parts, sintering properties of iron-copper-tin compact made from iron-copper prealloyed and tin powders were investigated at various temperatures in the range 700∼890 ℃, and then the results were compared with those of the conventional iron-coper-tin compact made from iron, copper and tin powders. The results obtained are as follows : 1) Sintered density ratio and radial crushing strength of iron-copper-tin compact made from iron-copper prealloyed and tin powders were higher than those of the conventional iron-copper-tin compact made from iron, copper and tin powders at all sintering tempeatures. 2) The radial crushing strength of iron-copper-tin sintered compact made from powder mixture, of which iron-7.20%copper prealloyed powder mixed with 1.80% tin powder in the copper and tin ratio 8 : 2, was obtained about 50kg/㎟ at the lowest temperature studied 700˚C for 30min, and this increased to about 60kg/㎟ after sintering at 890˚C for 30min. 3) The radial crushing strength of iron-copper-tin sintered compact made from iron, copper and tin powders mixture as the conventional method, also its chemical composition was same with in case of using above the iron-7.20%copper prealloyed powder, was obtained about 23kg/㎟ at 700˚C for 30min, and this increased to about 43kg/㎟ after sintering at 890˚C for 30min. As the result, the using of iron-copper prealloyed powder improve its sintering performance permitting lower sintering temperature more than conventional metnod.

先加力 후 補修-補强한 鐵筋콘크리트 壓縮部材의 構造特性에 관한 實驗的 硏究

신용석,최진석,김판선,조철희,손순채,김정섭 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2(구조계)

This study examined the Stress and structural characteristics of reinforced concrete compressive member repair and strengthening by CFS and GFS after pre-loading. The following results were obtained. The results of compressive testing by the kind of fiber suggested that: In CFS, Specimen increased by about 26.9% and strengthening after pre-loading, by about 111.8%, compared with after strengthening, In GFS, Specimen increased by about 69.0% and repaired and models after pre-loading, by about 76.7%, compared with after strengthening. In the compressive testing, strengthen with CFS-Specimen showed a brittle fracture and strengthen with GFS-Specimen represented ductile fracture. More increasing in stress of Specimen, and repair and Strengthening specimen after pre-loading than loading specimen after strengthening suggested the strengthen effect of fiber.

Kim,Dong-jo

장재철,김동윤,박영순,전철,김동조 群山大學校 自然科學硏究所 1991 自然科學硏究 Vol.6 No.-

홍삼 추출물이 반치사량정도의 방사선(5Gy)에 조사된 생쥐조직 및 이들 조직에서의 효소활성에 미치는 영향을 관찰하기 위하여 ICR계 생쥐를 대상으로, 생리적 식염수군을 대조구군으로 하여, 홍삼 추출물 투여군과 방사선만을 조사한군 및 홍삼 추출물 투여후 방사선 조사군 등 4군으로 나누어 1일, 4일, 9일, 17일 및 30일 등 5회에 걸쳐 생체의 조직중 비장 및 고환에서의 중량 변화 및 GOT와 GPT의 활성을 측정하여 결과를 얻었다. 비장의 중량변화는 1일째 및 4일째 최소치를 보이다가 이후 증가추세를 보였으며, 고환의 중량 변화는 17일 이후 급격한 감소로 30일에도 증가하지 못했다. GOT의 활성도 변화는 비장에서는 초기에 현저히 증가했으며 이후 회복하는 경향이었다. 방사선 조사군들에서는 홍삼추출물 투여군이 방사선만을 조사한 군보다 빠르게 회복하는 경향이었으며 고환에서의 GOT활성은 매우 불안정하였다. GPT 활성도 변화는 비장, 고환에서 모두 초기에 증가하다가 점차 회복하는 경향이었으며 홍삼 추출물 투여후 방사선 조사군이 방사선만을 조사한군보다 빠르게 회복하는 경향이었다. 이러한 결과로 볼 때 홍삼 추출물은 방사선 조사에 의하여 기인된 비장 및 고환의 GOT와 GPT활성도 증가에 방호효과가 있다고 생각된다. This study was prepared to observe the change of tissues weight, glutamate oxaloacetate transminase(GOT) and glutamate pyruvate transminase(GPT) activities in the spleen and testis treated with red ginseng extract injection in the gamma ray irradiated mice. Groups were divided into control, red ginseng extract injection, irradiation after saline injection and irradiation after red ginseng extract injection. The spleen and testis weights were decreased at 17th day irradiation after saline injection and irradiation after red ginseng extract injection. The GOT activity showed earlier recovery at irradiation after red ginseng extract injection group than irradiation after saline injection group in the spleen. The GPT activity showed earlier recovery at irradiation after red ginseng extract injection group than irradiation after saline injection group in the spleen and testis. The above result suggest that red ginseng extract have the recovery effect on the change GOT and GPT activity after radiation injury in the spleen and testis of mice.

하지 연쇄계모형에서 수직반력의 증가가 관절토크 유발에 미치는 영향

임상용,류재청 제주대학교 1994 논문집 Vol.39 No.-

본 연구는 하지관절의 근토크를 유발하는 요인을 분석하고 Tatara(1983.1987)의 연구결과를 검증하기 위해 부하를 체중에 대한 부하비율을 설정하고(%BW), 이를 토대로 분석결과 내린 결론은 다음과 같다. 첫째, 보행동작은 수직반력(외적힘, %BW)에 종속요인으로 나타났고, 따라서 하지 분절에 수직반력은 압축작용을 하는 것으로 나타났다. 둘째, 부하의 수준에 따라 히프관절의 토크를 유발하는 요인에서 부하가 40%BW일 때 수직반력은 종속요인으로 수직반력이 관절의 근토크에 미치는 영향은 큰 것으로 나타났으며, 0%BW와 20%BW의 경우는 독립적인 요인으로서 아무른 영향을 미치지 않았다. 세째, 무릎관절의 경우 관절토크와 수직반력과는 독립적인 요인으로 수직반력의 종류에 따라서 관절의 토크유발에 아무른 영향을 미치지 않았다. The study was undertaken to investigate factors generating a joint torque according to load level (%BW) during normal gait. 1) The joint torque during normal gait was influenced to vertical reaction force. The vertical reaction force was played a role of compression force. 2) The factors generating joint torque in lower extremity according to load level was independent role in 40%BW but not influenced in 0%BW, 20%BW load level. 3) The kind of load level(vertical reaction force) did not incluenced knee joint torque, but did in hip joint torque.

하프 변환을 이용한 타원 검출 알고리즘의 구현

이주용,정채영,이웅기 조선대학교 기초과학연구소 1996 自然科學硏究 Vol.19 No.1

The Hough transform is a robust technique which is useful in detecting strait lines in an edge-enhanced picture. However, the conventional Hough transform to recover ellipses has been limited by slow speed and excessive memory size. This paper presents algorithm techniques aimed at improving the efficiency and reducing the memory size of the accumulator array. In this paper, five geometries of symmetric points of an ellipse are used to improve the efficiency of using a conventional HT for the detection of an ellipse. This technique greatly reduces the memory space of the accumulator needed for the detection of ellipses using the HT.

수영인구의 저변확대를 위한 방안에 대한 연구

김용수,류재청 濟州大學敎 體育科學硏究所 1999 체육과학연구 Vol.5 No.-

This study will help the people explain that the swimming is good for preventing diseases of the adult people, the people's health and the happiness of life. This study also will help introduce the reasonable idea to the people and making growth of the swimming population. This study is based on the facilities. the managing of system and the activities, also the events of the Swimming in Cheju island. The result of this research which is based on the study of the Cheju people's consciousness is as below. 1. Cheju province has facilitated 26 of swimming: 18 of the indoor pool, 8 of the outdoor pool. Out of the indoor swimming pools, only 10 are opened during the period without holiday. and the rests need investment of the government or the business man. 2. Cheju people has already recognized the need of swimming for their health, but they rarely come to the swimming because the inconvenience of use. This make serious problem of the facility management. 3. The most people begin to swim by voluntary motivation, and their purpose is making progress of their health. The most of swimming people are members of the swimming center where are near located men their house, and they have some complaints of the swimming center. 4. The swimming people think that the swimming is very soundness sports for their body and the spirit. They say that the total-fitness and the endurance has progressed outstandingly. 5. The swimming people has complaints of their trainer, and this problem will be solved out by reeducation. 6. The swimming people has complaints of the facilities and the services. 7. The swimming people answered of the prosperous swimming. The first key is - They should be leaded by the government. And the secondary is - increasing the facilities. And the final key is - the people voluntary participation.

특수위치에 있는 원자들의 비등방성 온도인자

김용채,이창희,이진호,서일환,추금홍,이정수,성백석,김문집 순천향대학교 기초과학연구소 1998 순천향자연과학연구 논문집 Vol.4 No.2

The anisotropic thermal factor of an atom located at a general position has six parameters as follows: ?? If the atom is placed at a special position, the anisotropic thermal factor must have the same symmetry as the special position has. The symmetries at the special positions reduce the 6 anisotropic thermal parameters to 4 or 3 or 2 or 1 and there are 18 different kinds of anisotropic thermal factors altogether for special positions in 230 space groups.

지열교환기의 배관자재에 따른 냉각효율 분석

오인환,박상혁,김용채 건국대학교 자연과학연구소 1997 建國自然科學硏究誌 Vol.8 No.-

To use the earth heat, an underground heat exchanger is developed and pipes are layed in the depth of 2.5m under the ground. The pipes have two different kinds of diameter (200mm,100mm) and materials(PE, PVC). The results of cooling effect in summer and in fall are following. The temperature in different soil depth varies from 22.7℃ by 1.5m depth, 20℃ by 2.5m to 15℃ by 3.5m. So it should be better to have the depth greater than 2.5m. The difference of air temperature between the inside and outside pipe was 7Kelvin(K) with 200mm diameter and 17K with the 100mm diameter with the same material in summer. By the higher outside temperature from 36℃, it could keep the air temperature below 20℃ inside the pipe. The cooling performance was 1,992W with 200mm diameter (PE), 1,375W with 100mm diameter (PE), and 1,196W with 100mm diameter(PVC), respectively. As the outside temperature varies from 28℃to 5℃ in autumn, the temperature under the ground shows 17.5~15℃. The difference between maximum and minimum temperature are 12K with 200mm diameter (PE), 8K with the 100mm diameter(PVC) and 7K pipe with 100mm diameter(PE). Pipes with small diameter can more reduce the difference than the pipe with larger diameter.