장루 보유자의 생활 만족도 조사

서현석,이석환,고영관,오수명,윤충,주흥재,이기형 대한대장항문학회 1998 Annals of Coloproctolgy Vol.14 No.3

跆拳道 修鍊이 어린이 成長및 體力에 미치는 影響

현석주 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.2

The purpose of this study is to analysis whether one children in TAE-KWON-DO trained for over one year, after 10weeks training periods, could change their physical development and physical strength, and then, to provide for materials improving their competitive forces. TAE-KWON-DO exercise trained (the 4grade in primary school in Cheonan-city) were selected to participate in the study based on their exercise history for over one year and assigned to one of tow groups. 1. TAE KUK group The number of times of Squat thrust as a factor of endurance after 10weeks training was 35.3(p<.01) and before training was 34.1. The number of times of Sit-up as a factor of endurance after 10 weeks training was 35.3 and before training was 34.6. In the case of the trunk flexion in standing position, after 10weeks of training, the length was 14cm(p<.01) and before training was 12.5cm. In the case of the sargent jumping, after 10weeks of training, the length was 31.2㎝(p<.05) and before training was 31.2㎝. 2. KORYO group The number of times of Sit-up as a factor of endurance after 10weeks training was 35.3 and before training was 34.6. In the case of the trunk flexion in standing position, after 10 weeks of training, the length was 14㎝(p<.01) and before training was 12.5㎝. The closed-eyes foot-blance'time after 10weeks of training was 15.5seconds and before training was 18.3seconds(p>.05).

위성 ATM 망에서 ABR 서비스를 위한 트래픽 전송방식에 관한 연구

최병석,박재현,박현민,안현석,유재욱 동국대학교 산업기술연구원 1997 산업기술논문집 Vol.9 No.-

ATM의 ABR 서비스는 기본적으로 전달지연이 작은 지상망에 적합하게 개발되었기 때문에 위성 망과 같이 전달지연이 큰 상황에서는 망의 심각한 폭주나 링크의 채널 전송률 저하 등이 발생될 수 있다. 또한 위성채널은 지상 ATM 망에 비해 대역이 제한되어 있으므로 폭주를 미연에 방지하기 위해 보다 치밀하고, 지연에 덜 민감한 대역할당 알고리즘이 필요하다. 본 논문에서는 EPRCA 기반의 위성탑재 ATM 교환기로 구성된 위성 ATM 망에서 BECN과 큐의 상태정보를 이용하여 위성 ATM 망에서 ABR 서비스를 제공할 수 있는 방안을 제안하였다.

SF6/N₂압축가스중에서 支持絶綠物의 沿面放電 特性

李鉉雨,高義石,金正達 慶南大學校 附設 工業技術硏究所 1987 硏究論文集 Vol.5 No.-

直流 平等電界중에서 電氣的 負性氣體인 SF?가스와 N₂가스를 混合시킨 경우 破壤電壓과 PMMA 스페이서가 존재하는 경우 沿面放電特性을 760〔torr·cm〕이하에서 조사 검토한 結果를 要約하면 다음과 같다. 1. SF?, N₂,SF?/N₂가스 混合가스중에서 스페이서가 없는 直流平等電界의 破壤强度는 파센곡선에 따랐으며 電極과 스페이서의 接觸狀態가 完全한 경우도 거의 직선적으로 증가했다. 2. 스페이서가 없는 경우와 스페이서와 電極이 完全한 경우는 가스 種類에 관계없이 極性效果는 나타나지 않고 電極과 스페이서간에 接觸缺陷이 있는 경우 負極性 閃絡電壓은 正極性의 경우보다 낮았다. 3. pd≥500〔torr·cm〕범위에서는 스페이서 效率이 낮게 나타나고 pd?200〔torr·cm〕범위에서는 閃絡電壓이 가스壓에 依存한다. 4. SF?30〔%〕N₂70〔%〕混合가스의 경우 N₂단독가스와 비교해 볼 때 약 2.2배의 絶綠强度를 나타내므로 N₂가스에 소량의 SF? 가스를 混合하여도 閃絡電壓은 매우 높게 된다. Surface Breakdown Characteristics of Spacer in SF?/N ₂Compressed Gas. The flashover voltages have been investigated for PMMA spacer and unbridged-gap in SF?/N₂gas mixtures up to the value of 760(torr·cm), The gap was stressed by DC source The results obtained are as follow; 1. The flashover voltages for an unbridged gap and for a spacer in SF?/N₂gas mixtures follow the Paschen's curve. 2. The polarity effects was not observed in both unbridged gap and a spacer which had perfect contacts with an electrodes. The flashover voltages for negative polarity are lower than those for positive polarity in case of imperfect contacts. 3. 3% flashover voltages is decreased by the putting a spacer which had perfect contacts with an electrodes. The spacer which has gap void shows the lowest flashover voltages. 4. The lowest spacer efficiency was obtained with higher gas pressure & large amount of N₂content. The flashover voltages depend on the gas pressure rather than the spacer efficiency at low valuse of pd. 5. The flashover voltage of gas mixtures of N₂with SF? are relatively high, even though the amount of SF? gas content is small.

통일한국에 대비한 민주시민교육 연구

유현석 연세대학교 통일연구원 1997 통일연구 Vol.1 No.2

Sodium Nitroprusside 및 Adenosine Triphosphate를 이용한 조절저혈압이 심-혈관계에 미치는 영향

문현석,조형상 중앙대학교 의과대학 의과학연구소 1990 中央醫大誌 Vol.15 No.1

Controlled hypotension is an effective means of decreasing blood loss and of providing a better visible surgical field. Numerous drugs have been developed to lower arterial blood pressure. The ideal hypotensive drug must be effective in reducing blood pressure and at the same time controllable without any undesirable effect to vital organs. Adenosine triphosphate (ATP), a well known intracellular high energy compound, has been reported to be a hypotensive agent similar in effect to sodium nitroprusside (SNP), a drug which is frequently used as a hypotensive agent. To investigate the possibility of clinical use of ATP, we compared the cardiovascular effects of SNP- and ATP-induced hypotension and effects on acid-base balance and blood gas content. The following results were obtained. 1. Controlled hypotension by ATP was stable and rapidly reversible without tachyphylaxis and rebound hypertension. 2 .The heart rate, central venous pressure, pulmonary capillary wedge pressure and pulmonary vascular resistance were unchanged during the SNP- and ATP-induced hypotension. However, hypotension produced by ATP was associated with a greater cardiac output than that induced by SNP (p<0.01) and was also associated with a further decrease in systemic vascular resistance (p<0.01). Left and right ventricular stroke works were more improved during ATP-induced hypotension than those of SNP. The ratepressure product and coronary perfusion pressure were decreased in both groups (p<0.01). The mean pulmonary arterial pressure was increased with ATP (p<0.05). Triple index, which is the product of heart rate, systolic blood pressure, and pulmonary wedge pressure, decreased in SNP group (p<0.05). 3. Bicarbonate and base excess in venous blood were decreased with ATP group (p<0.05). On the basis of this study, compared with SNP, ATP as a hypotensive agent also provide a effective cardiovascular function during controlled hypotension. Therefore, ATP is probably a useful agent for controlled hypotension in a clinical practice.

집합주택의 전기실비에 관한 연구

이현우,고희석 慶南大學校 附設 工業技術硏究所 1988 硏究論文集 Vol.6 No.-

주택에서 사용하기도 편리하고 에너지를 쉽게 얻을 수 있는 전기에너지로의 의존도가 높아져 감에 따라 집합주택의 전기설비의 최적설계에 필요한 기본적 사항과 새로운 설비의 설계, 누전, 접지 등으롱 생기는 트라블의 대책, 또한 조명설비 등의 효율적 이용방법, 심야전력의 활용 등을 연구한다. Due to the heavily increasing demands of the electric energy in he housing, it has been requested to optimize the design of the group housing electric installation. This paper deal with the basic components of the optimal design, new installation design, leakage current, trouble shooting of ground, and efficient exploits of lighting systems using the midnight power.

수술후 소아에서 발생한 간염 : 1예 보고 1 case report

문현석,양홍석,진홍용 중앙대부설한국의과학연구소 1986 한국의과학 Vol.18 No.1

고등학교 체육특기·적성 교육활동에 관한 운영 분석

김평석,김이수,최현영,노덕선 한국스포츠리서치 2005 한국 스포츠 리서치 Vol.16 No.2

The objective of this research is a place where it examines the participation actual condition regarding the physical training specialty-an aptitude education activity of the high school students and a satisfactory degree. In the research object currently the high school south which are to Seoul - Inch'on - Kyonggi-Do. about it set at the royal tomb which points out specifically the students and u, the ticket house method the house Rag radio ticket house law (cluster random sampling) with total 405 people was ticket collected goods. In order to analyze the data of the research which it sees it uses a SPSS 11.0 for windows statistical program with the statistical technique which it uses ! and frequency analysis (frequency analysis), x²verification, and independent group t- verification (independent group t-test) it is a back. With above same research method and process it leads and it gets and the position conclusion with afterwords is same. First, participation objective the south student the motion technology advancement and health and the physical strength increase showed a high ratio, the schoolgirl in order with the friends together description below, the and hold was doing the motion technology advancement, the person who gives the place effect which selects from a physical training department south. about as the student all friend the student answer back appeared highly. physical training relation station the map the physical training teacher the other side which is visible a most high ratio it wants the coaching staff with the fact that it prefers the leader which equips a specialty map ability. Second, physical training specialty- aptitude education activity problem point, the diversification and the schoolgirl of program the map method south student of the coaching staff was investigated recognition of physical training pure with. third, physical training activity which participates with the fact that it will receive a many help in study it led and motor function and physical strength increase and health and. Function improvement and physical strength increase, against a study help the south student, the schoolgirl appeared in small quantity highly from healthy help. physical training activity which participates it led and school life it was it is joyful. satisfactory in intimate feeling and friend relationship of stress solution and the teacher and became the many help, it will appear, that even after words it will be active from the physical training relation station, the student answer back highly was investigated and even from multi problem point inside satisfactory boat song it was investigated with the high thing.

출생시 신생아 혈액중의 2,3-DPG 농도

문현석,최병권 중앙대부설한국의과학연구소 1984 한국의과학 Vol.16 No.4