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윤종택 中央大學校 遺傳工學硏究所 2001 遺傳工學硏究論集 Vol.14 No.1
Organ transplantation is still very rarely performed. Transplantation is clearly established as the treatment of choice for many patients suffering from end-stage organ failure, as major advances in techniques and the development of new immunosupressive therapics have significantly improved the outcome of clinical transplantation during the past two decades. Attention has been focused on the potential use of animal organs as an alternative and promising solution to this serious problem. Recently, the modification of pigs, which are the only animals now being considered as a source of source organs for human transplantation, have been pursued by means of genetic engineering techniques.
무인수상정에서의 원격운용통제 및 자율수준을 고려한 비상모드 알고리즘
윤종택,김용이,백재웅,임재현,유찬우,김정훈,Youn, Jong-Taek,Kim, Yongi,Baik, Jae Woong,Lim, Jae Hyun,Yu, Chan-Woo,Kim, Jung-Hoon 대한임베디드공학회 2017 대한임베디드공학회논문지 Vol.12 No.5
In remote USV (Unmanned Surface Vehicle) maritime operation, the remote operation and control technic and autonomous control technic is required and the emergency mode algorithm is needed certainly for sailing and accomplishing various surveillance, reconnaissance, and underwater search missions of USV. In this paper, we review the countermeasures in emergency situation of the existing USV system (Barracuda) and propose the emergency mode algorithm considering the operation and control, and autonomous control level for the stable USV operation in case of emergency. We analyzed the autonomous control level in view of the mission complexity and environmental difficulty, and human interface, and verified the performance of the autonomous control level when we apply four emergency mode algorithms. It is expected that more stable and reliable operation and cotrol are possible if the proposed algorithm is applied to the environments requiring the various multi-mission USV sailing and mission achievement.
카페인과 헤파린 처리가 한우정자의 첨체반응과 단백질상에 미치는 영향
윤종택,한기영,정영채,김창근,전광주 韓國受精卵移植學會 1996 한국동물생명공학회지 Vol.11 No.3
본 연구는 수정능획득유기물질로 알려진 카페인 헤파린을 병행처리하여 한우 정자의 첨체 반응율과 생존율을 알아보고 수정능획득과정 중에 단백질의 변화상을 전기영동방법으로 조사하였다. 동결융해후 정자의 생존율은 90%이상이었으나 전배양처리후 0.5시간에 70%로 감소하고 2시간 이후에는 35%로 감소하였다. 정자의 첨체반응율은 동결융해후 정상정자가 85.7%였으나 전배양시간에 따라 53.4%에서 14.3%로 감소하였다. 동결융해후 첨체가 소실된 생존정자는 9.
韓國在來山羊 反芻胃內 Cellulolytic Bacteria의 酸素活性에 關한 硏究
尹鍾澤,裵貴石,孟元在,張文伯,李相碩 中央大學校 食糧資源硏究所 1993 食糧資源硏究所 論文集 Vol.5 No.1
本 實驗은 反芻胃微生物의 纖維素 分解作用 대한 基礎資料를 얻기 위해 韓國在來山羊 反芻胃內 纖維素分解微生物을 分離·同定하여 醱酵産物, 電子顯微鏡的 檢定을 실시하였다. 그 結果는 다음과 같다. 1. pH水準은 醱酵期間동안 反芻胃 最適 範圍인 6.52∼6.68으로 正常範委로 維持되었다. 2. 보리짚을 substrate로 한 乾物 消化率은 公培養에서 높앗다. 3. 微生物 乾物生成量을 Mixed group에서 낮은 傾向을 보였다. 4. NDF 消化率은 monoculture구에서 높은 結果를 나타내었으며 72時間 培養시 coculture구에서 높은 結果를 보였다. 5. Ammonia-N 濃度는 72시간까지 漸次的으로 증가하는 傾向이었으며, coculture group에서는 48時間帶에 다소 낮아졌다. 6. 전자현미경적 관찰을 통해 분해가 활발히 일어남을 보여 주었다. The isolated ruminal celluloytic bacteria in the rumen of Korean native goat, Fibrobacter succinogenes, Butyrivibrio fibrisolvens, Ruminococcus fibrisolvens were incubated on barley straw in mono-and coculture. The microbes were examined for its ability to degrade barely straw and compared with synergy between mono- and coculture. This experiment was conducted to study the characteristics of predominant cellulolytic bacteria in the rumen of Korean Native Goat on the regulation of enzyme activiy, and undertaking to isolate and identification the bacterial flora and to determine fermentation factor, degradation of fiber source. The results obtained in this study are as follows: 1. Morphology in the light microscope, they are grown on defined substrates and no difference was observed. 2. pH level was maintained with cellulolytic ruminal optimum range (6.52∼6.68) during fermentation period. 3. Dry matter digestibility was the highest for tri-culture with barely straw substrate. In the case of Mixed group, similiar digestibility were observed. 4. NDF digestibility was the highest for B. fibrisolvens but the substrate was more rapidly de-graded after 48 h by F. succinogenes. 5. Nicrobial dry matter yield of coculture were lower than monoculture group. 6. The coculture of these microorganisms on barely straw was less effective than monocultures in concentration of ammonia nitrogen. 7. Observations by scanning electron microscopy showed that barely straw were degraded by microbes.