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      • 運動適性에 關한 硏究 : 優秀選手들의 各種筋力 및 柔軟度測定

        金洪祚 서울大學校 保健大學院 1966 公衆保健雜誌 Vol.3 No.2

        Measurements of muscular strengths. these are grasping power, lifting power. arm flexion and leg extension. were made on 208 Korean olympic athletes as a part of the evaluation of physical fitness. The flexibility was also observed. Following conclusions were obtained. 1. The degree of development of muscular strength in each athlete was pretty much correlative with characteristics of each sports. Strong lifting power is a requisite factor in the sports in which explosive expression of mussular power is required. 2. The grasping power of right and left hand was especially different in athletes of such sports as tennis and table-tennis. 3. Female athletes were much more excellent in the test of the flexibility. 4. It is recommendable to measure three muscular strength for exact estimation of basic hysical fitness and for proper orientation in physical training.

      • 高壓炭素療法에 있어 血液깨스變動에 關한 實驗的硏究 : 急性一酸化炭素中毒을 中心으로

        金洪祚 서울大學校保建大學院 1965 公衆保健雜誌 Vol.2 No.1

        This study was attempted to observe changes of blood gas under the condition of different pressure level of hyperbaric oxygenation. Author constructed small size of experimental hyperbaric chamber for this purpose. Main findings obtained are as follow. 1) On the occasion of acute carbon-monoxide poisoning, hemoglobin in blood increased, while carbon-dioxide and oxygen contents in blood decreased. In a comatose state, carboxyhemoglobin (HbCO)saturation was over 94%. 2) Carbon-dioxide and oxygen contents in blood markedly increased on the occasion of recovery under 100%O₂ I atmospheric pressure while carboxy-hemoglobin saturation % still remained at the dangerous level of blood concentration (66%). 3) By the increase of pressure level of hyperbaric oxygenation, blood gas findings showed to return to normal control value. 4) There was a difference in blood gas findings between the dead & comatose animal by acute CO poisoning. 5) Rabbits showed almost twice of tolerance of rats to CO poisoning. 6) Rabbits showed more rapid dissociation of carboxy-hemoglobin than the rat under same condition. 7) The above results showed that 100%O₂3 atmospheric pressure was necessary one short period of therapy.

      • 急性一酸化炭素中毒 및 中毒致死時 白鼠 의 各組織酸素消耗量變化成績

        金鍾錫,沈達燮,金洪祚 서울大學校保建大學院 1965 公衆保健雜誌 Vol.2 No.1

        This study was attempted to observe the changes of the oxygen consumption in the liver & brain tissue of the rat exposed to carbon-monoxide environment until severe poisoning. findings obtained are as follow 1) In acute carbon-monoxide poisoning. tissue oxygen consumption of the liver & brain of rats were markcdly decreased. 2) In the Deceased group by severe carbon-monoxide poisoning, there were no changes in the tissue oxygen consumption rate compared with the control group.

      • KCI등재

        개조된 케이슨 플로팅 도크의 구조 보강에 대한 연구

        김홍조,서광철,박주신 해양환경안전학회 2021 해양환경안전학회지 Vol.27 No.1

        선박 수리시장은 선박에 의한 환경오염 방지 강화, 선박구조에 대한 안전기준 강화 등의 영향으로 유지 및 보수에 관한 관심이 꾸준히 증대되고 있다. 이러한 영향을 반영하여 서남해에 있는 수리 조선사들에 외국 선사들의 수리 요청 접수 건수가 증가하고 있다. 그러나, 서남해권 수리 조선사들은 영세한 중소업체가 대부분이라서 수리조선 업체의 통합적 시너지 효과로 이어지기가 쉽지 않고, 집적화가 되어있지 않아서 인프라 공동활용이 어려워서 수리조선업 활성화에 걸림돌로 작용하고 있다. 수리조선업을 운영하기 위해서는 플로팅 도크가 필수적으로 필요로 하며, 대부분 노후화된 케이슨 도크를 해외로부터 수입한 후, 개/보수를 통하여 운용하고 있다. 그러나, 사용 수명이 30년 이상이고, 구조물 검사 기준이 없어서 안전분야에 취약성을 갖고 있다. 본 연구에서는 개조된 케이슨 도크의 구조 안전성을 평가하고, 도출된 문제점을 해결하기 위하여 추가적인 구조 보강안을 찾기 위하여 유한요소해석 프로그램인 ANSYS를 활용하였다. 플로팅 도크의 경우, 선급 규정이 있지만 구조강도 관련해서는 규정이 미흡하여 적용성이 떨어지고 있는 실정이다. 이러한 부족한 평가 영역에 대해서는 상세 구조해석을 통하여 보완하였다. 보강안은 수리조선소 작업의 특성을 고려하여 폰툰 갑판 상부 보강과 선측 탱크 보강으로 결정하였다. 결정안에 대한 구조해석을 통하여 선측 보강안을 최종안을 선정하였고, 실제 구조물을 제작하여 보강안을 반영하였다. 도출된 주요 결과들은 유사 설비의 구조 강도 개선을 위한 참고 자료로 활용 가능하며, 개/보수 시 이러한 방법을 활용하면 빨리 최적 해를 찾을 수 있을 것으로 기대된다. In the ship repair market, interest in maintenance and repair is steadily increasing due to the reinforcement of prevention of environmental pollution caused by ships and the reinforcement of safety standards for ship structures. By reflecting this effect, the number of requests for repairs by foreign shipping companies increases to repair shipbuilders in the Southwest Sea. However, because most of the repair shipbuilders in the southwestern area are small and medium-sized companies, it is difficult to lead to the integrated synergy effect of the repair shipbuilding companies. Moreover, the infrastructure is not integrated; hence, using the infrastructure jointly is a challenge, which acts as an obstacle to the activation of the repair shipbuilding industry. Floating docks are indispensable to operating the repair shipbuilding business; in addition, most of them are operated through renovation/repair after importing aging caisson docks from overseas. However, their service life is more than 30 years; additionally, there is no structure inspection standard. Therefore, it is vulnerable to the safety field. In this study, the finite element analysis program of ANSYS was used to evaluate the structural safety of the modified caisson dock and obtain additional structural reinforcement schemes to solve the derived problems. For the floating docks, there are classification regulations; however, concerning structural strength, the regulations are insufficient, and the applicability is inferior. These insufficient evaluation areas were supplemented through a detailed structural FE-analysis. The reinforcement plan was decided by reinforcing the pontoon deck and reinforcement of the side tank, considering the characteristics of the repair shipyard condition. The final plan was selected to reinforce the side wing tank through the structural analysis of the decision; in addition, the actual structure was fabricated to reflect the reinforcement plan. Our results can be used as reference data for improving the structural strength of similar facilities; we believe that the optimal solution can be found quickly if this method is used during renovation/repair.

      • KCI등재
      • KCI등재

        콩의 품종, 파종시기 및 지역적 차이에 대한 병 발생 평가

        김홍조,오지연,김동관,정우석,김기덕,윤홍태,홍점규 한국식물병리학회 2010 식물병연구 Vol.16 No.2

        Occurrence of plant diseases is dependent on various factors in the agricultural system. Due to recent extensive environmental climate changes, i.e. global warming, agricultural systems such as planting dates and cultivars are being affected. Gradual transition in disease occurrence and incidence in the agricultural fields can also be affected by direct and/or indirect environmental changes. In this study, we evaluated disease occurrence and incidence in soybean plants to investigate whether it could be related with cultivars, planting dates and geographical differences in Korea in 2008. Soybean cultivars including ‘Taekwang’, ‘Pungsan’,‘Cheongja 3’, ‘Saeol’, and ‘Dawon’ were planted in four different dates, May 15, June 1, June 15, and June 30, in two locations, Suwon, and Naju. Soybean diseases such as wild fire and bacterial pustule were mainly found depending on cultivars, planting dates, and areas. Wild fire occurred severely on cv. ‘Taekwang’ while bacterial blight did on cv. ‘Dawon’ among tested cultivars. Disease developments of wild fire and bacterial blight generally decreased in delayed planting regardless of cultivars. 식물병발생은 농업 체계에서 다양한 요인에 의해 좌우된다. 최근의 광범위한 환경적인 기후 변화로 인하여 기후 온난화, 파종 시기와 품종의 선택 같은 농업 체계가 영향을 고 있다. 포장에서의 점차적인 병 발생 양상은직, 간접적인 환경 변화에 영향을 받을 수 있다. 본 연구에서, 콩 품종, 파종 시기, 재배의 지역적인 차이가 우리나라의 콩 병 발생에 미치는 영향을 조사하기 위하여 병발생 빈도를 평가하였다. ‘태광’, ‘풍산’, ‘청자3호’, ‘새올’, ‘다원’ 품종을 5월 15일, 6월 1일, 6월 15일, 6월 30일 4회에, 수원, 나주 두 지역에 파종하였을 때, 콩 들불병과 불마름병 등이 주요 병으로 발견되었다. 들불병이 ‘태광’ 품종에서 주로 심각하게 발생한 반면, ‘다원’ 품종은 불마름병에 대해 특히 감수성이었다. 들불병과 불마름병의 병 진전은 품종과 관계없이 파종 시기가 지연 될수록 감소하였다.

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