얼굴 인식의 발달학적 관점

채정호,양대현,이경욱,박원명 한국의학사 2004 診斷과治療 Vol.24 No.2

노인에게서 대퇴골 고관절 치환술시 마취관리 : 증례보고 A case report

채원석 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

An Ninety-year old female patient was transferred to the operating room for hip arthroplasty under regional anesthesia. Pulmonary (unction studies revealed severe restrictive pattern, and cardiomegaly noted in her chest X-ray examination. For the prevention of hypothermia, we first prepared blanketrol and IV line warmer and attempted epidural anesthesia, but we failed. We then did spinal anesthesia which was successfully administered. After performing regional anesthesia and injection of methylmethacrylate bone cement into the intramedullary canal, blood pressure and pulse was stable and no other evidence of instability. In the recovery room, she did not show any other symtoms, and three weeks later, she was discharged hospital without any sequelaes.

Empirical Testing of International Financial Models under Open Economy:for the Case of German Economy between Bretton-Woods and EMS : for the Case of German Economy between Bretton-Woods and EMS

원재환 순천향대학교 사회과학연구소 2000 순천향 사회과학연구 Vol.6 No.1

본 연구의 목적은 Keynesian, Fleming-Mundell, 그리고 AD-AS 모형 등 국제금융이론들이 개방경제(open economy)체제에 적용가능한지를 모형에서 가정하는 경제환경과 유사한 변동환율제 하에서의 독일경제를 통해 검증하는 것이다. 먼저 독일의 경제를 전후(戰後)부터 유럽의 그룹변동환율제도(EMS)가 도입된 1979년까지의 기간에 대해 이론적으로 분석하고, 고정환율제인 브레튼우즈 체제가 붕괴되어 독립 변동환율체제가 도입된 후 EMS이전까지 개방경제에 가장 근접한 기간동안 세 가지 모형이 어느정도 설명력이 있는지 실제 데이터를 가지고 검증하였다. 회귀분석을 이용한 실증 연구결과 세 모형에서 예측하는 가설이 실제 경제현상과 일치함(consistent)을 발견하였고, 이는 이들 모형들이 개방된 국제경제 하에서 실제 경제현상들을 분석하고 예측하는데 적절하게 사용될 수 있음을 보여준다. 다만, 본 연구에서 도출된 결과들은 연구기간과 자료의 한계로 경제현상을 설명하기 위한 모든 변수들을 고려하지 못한 상황에서 얻어진 것이므로 이를 일반화시키기 위해서는 다른 국가와 다른 연구기간에 대해 향후 추가 연구가 필요하다고 사료된다.

船舶原子爐의 硏究開發에 關한 考察

蔡元錫 群山大學校 1994 論文集 Vol.21 No.-

(1) Nuclear power is currently requested as substitute energy source of a fossil fuel and with a part of an anti-pollution policy in the earth. According to data in Norway, which was handed in 29th MEPC-IMO Marine Environment committee-in March of 1990, the pollution levels for specific gases include 2% for CO2 4% for SOx and 7% for NOx from international ships, that could make the earth warm and also acidic rain. And it's also important that the emissions of bilge water from ship pollute the sea. (2) The plant process quantity in nuclear ship can be influenced by the vibration of ship under stormy weather. ① The reactor power, temperature and pressure, the amount of flowing water level in plant process are changed at large. Especially a water level in steam generator and a pressurizer can be influenced largely by water surface and two-phase flow condition. According to a frequency-explanation of ship's vibration, in ship's heaving, rolling and pitching, heaving of the ship affects the fluctuation of water level largely in proportion to acceleration of up and down motion. ② The load variation which is caused by R.P.M of the main propulsion engine and its power in a ship managed by engineer's intention or natural condition makes much vibration in the ship. The periodical vibration of propeller and its racing also cause much vibration in the ship. (3) The vacuum of main condenser can be influenced by the temperature of sea water which is approximately from 5℃ to 30℃. The lower temperature of sea water marks, the higher vacuum-rate marks, which makes engine power increase. (4) As stated above, nuclear engineering should concentrate on study about more safe and easy-handling and economical marine reactor. The government should establish faithfully the policy about substitute energy.

다공성 실리콘의 전기화학적 연구

채원석 대진대학교 첨단소재연구소 1999 첨단소재연구소논문집 Vol.2 No.-

Porous silicon, electrochemically etched in HF solution, exhibits a unique properties including great potential for use as a light emitter as well as being suited to incorporation into biological systems. This application leads to the types of silicon known as 'light emitting silicon' and 'biosilicon'. The processes and techniques leading to the fabrication of these materials are closely related. Visible electroluminescence from the cathodically biased porous silicon electrode in electrolyte solution containing persulfate ions(S2O82-) exhibits a blue shift with increasing applied potential. The blue shift can be attributed to the formation of accumulation layer and to the Fermi level pinning in the porous silicon. However, the formation, luminescence, or reaction mechanism and electrochemical properties of porous silicon were still not completely understood in every detail. Although the surface of porous silicon layer was covered with hydrogen produced in as etchant, its hydrophobic property exhibited a abnormal current-decay curves under constant potential.

수면 무호흡과 불안장애의 불면증에 대한 다원수면기록

채정호,박원명,채영래,김제헌 大韓神經精神醫學會 1994 신경정신의학 Vol.33 No.2

Objects : The authors studied polysomnographic findings of patients with sleep apnea DIMS (disorders of initiating and maintainig sleep) syndrome and anxiety disorders with insomnia related to another mental disorders. Methods : Eight patients with sleep apnea DIMS syndrome and fourteen patients with anxiety disorder with insomnia related to another mental disorder(nonorganic) were studied using computerized polysomnography. Results : 1) The sleep period time were significantly decreased in anxiety disorder group and the sleep latency was prolonged in these patients. 2) The changes in sleep stage and the number of arousals during sleep period time were more frequent in sleep apneic patients group. And using these variables we could discriminate sleep apneic patients group from subjects with anxiety disorder. 3) The stage 1 sleep was significantly increased in sleep apneic patients. 4) The apnea index in sleep apnea patients was 28.1±25.7. Conclusion : These results suggested that even though there were similiar clinical presentaion such as insomnia, the sleep features of sleep apnea DIMS syndrome and anxiety disorder with insomnia were different. And though there were no instruments to check respiratory flow or movement, it would be possible to discriminate the sleep apnea DIMS syndrome from the anxiety disorder with insomnia by recording the changes in sleep stage and the number of arousals in overnight electroencephalographic procedure.

聯結財務諸表 作成實態와 問題點 : the Problems and Suggestions for Improvements

蔡奎學,全夏成,吳瑗善 홍익대학교 경영연구소 1986 경영연구 Vol.10 No.-

중년남성의 12주간 운동유형별 트레이닝이 신체구성 및 건강관련체력에 미치는 영향

원영두,송채훈,신명건 朝鮮大學校 스포츠科學硏究所 2004 스포츠科學硏究 Vol.15 No.-

This study applied aerobic and non-aerobic exercises to middle-aged men for 12 weeks, suggested effective exercise types based on its influences on their physical composition and physical fitness and aimed at providing the information to prevent adult diseases. It selected total 50 subjects including 25 aerobic exercise group and 25 non-aerobic exercise group at sports center in G metropolitan city, calculated the mean and standard deviation using statistical program SPSS 11.0 after 12-week training, conducted t-test (paired sample t-test) for differential test before and after exercise and obtained the following conclusions. 1. In the changes of physical forms by exercise types, aerobic exercise group showed statistically significant differences at chest (p<.05). waist (p<.01) and hiP (O<.05) before and after exercise and non-aerobic exercise group showed statistically significant differences at waist, hip and thigh sizes as P <.05 level and then it was found that aerobic and non-aerobic exercises have the influence on the changes of physical forms. 2. In the changes of subcutaneous fat thickness by physical parts according to exercise types, aerobic exercise group showed statistically significant differences at all subcutaneous fat thickness including triceps, subscapular, abdominal, Iliac crest, medial calf, etc. (p<.Ol), but non-aerobic exercise group showed statistically significant differences at all parts excluding medial calf (p<.05) 3. In the changes of health related physical strength by exercise types, there were statistically significant differences at muscular strength, muscular endurance, flexibility and cardiopulmonary endurance (p<.OOl). According to the above conclusions, it was found that aerobic and non-aerobic exercises had the influence on changes of physical composition, sizes and subcutaneous fat thickness and they were very effective in health related physical strength factors.

건설업 안전경영시스템모델 개발

채준석,갈원모,손기상 안전경영과학회 2001 안전경영과학회지 Vol.3 No.2

Safety management cost, US$ one thousand billion has been input to the construction area from 1995 to 2000 but the management quality is still in the developing country level. The above mentioned increase of accident rate are attributed to the generous code regulation, net fit to the sense, varying with time change, but the more fundamental reason of this is no practical construction safety management system, up to now. Hardware-orienting operation for the system could be a main reason of this problem. In this paper, we developed a model for efficient construction safety system. It was found from the case study that the model result in high efficient with low cost.

안전관리 기법에 관한 실증적 연구 : 건설작업을 중심으로

채준석,갈원모,손기상 안전경영과학회 2000 안전경영과학회지 Vol.2 No.1

Many Safety training up to now has been done at site varying with their condition without any standardization or fundamental work related technique. In order to prevent any accidents from construction site, now as we all know, we have to approach on it with work based method. The authors have investigated a couple of construction site for collecting the ideas from site Engineers of this. Some of ideas analyzed with the above related data have been shown as conclusions.