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      • 분산환경을 지원하는 데이터 모델링 방법론 개발

        김철한,김중인,우훈식 대전대학교 산업기술연구소 1999 산업기술연구소 論文集 Vol.10 No.1

        To reduce the production lead time, the attempts to exchange and share information among business processes within the enterprise and between enterprises have been increased. The information environment supporting this activities should be distributed. This study is concerned with the implementation of information system under distributed environment. Based on existing IDEF methods. we developed a modified method which newly includes concepts of the enterprise structure, the integration of legacy databases, the distribution of data, and the distributed applications. The method can be applied to the system developments of Enterprise Resource Planning (ERP), Commerce At Light Speed (CALS), and integrated databases.

      • SCIESCOPUSKCI등재
      • 디젤기관의 가시화에 의한 연소특성 해석

        김성훈,방중철 금오공과대학교 산업기술개발연구원 2001 産業技術開發硏究 Vol.17 No.-

        The combustion process of diesel engine is very complex because there are many factors which have effects on it. The study on these factors is necessary in order to improve diesel combustion. So, the effects of intake air temperature, cavity geometry and fuel injection timing on combustion characteristics were investigated in this paper with the visualized diesel engine. When the intake air temperature was increased, it was proved that the point of ignition nuclei was fasten in plate type combustion chamber. Also, it was turned out that the most effective fuel injection timing in engine power was BTDC 22° CA.

      • SCIESCOPUSKCI등재
      • KCI등재

        알코올 의존환자에서 갈근이 알코올 갈망과 대뇌 국소혈류량의 변화에 미치는 영향

        강철중,김명정,김성곤,김인주 大韓神經精神醫學會 1997 신경정신의학 Vol.36 No.5

        알코올 의존 환자에서 갈근이 알코올 갈망을 감소시킨다는 보고가 있고 알코올 갈망에 관여하는 대뇌부위가 전두엽-시상-선조체-측좌핵을 포함하는 회로라는 학설이 있다. 저자는, 갈근이 이러한 부위의 혈류량에 어떤 영향을 미치는지 알아보기 위해 연구를 실시하였다. 알코올 의존으로 입원하여 급성중독과 금단증상에서 회복된 환자를 대상으로 실험 제 1일에 알코올 갈망, 불안 및 기분을 측정한 후 단일광자광출전산화단층촬영술을 이용하여 양측 미상핵 두부, 양측 시상 및 양측 안와전두엽의 국소 혈류량을 측정하였다. 실험 제 3일에 소량의 알코올음료를 마시게 한 후에 제 1일의 실험을 반복하였다. 제4일부터 제13일까지 건조 갈근과립 12gram을 1일 2회 분복시키고 제11일과 제13일에 각기 제1일과 제3일의 실험을 동일한 방법으로 실시하였다. 그 결과는 아래와 같다. 1) 갈근 투여 전에는 음주 전에 비해서 음주 후에 알코올 갈망이 유의하게 증가하였으며 이때 우측 미상핵의 두부에서 혈류량이 유의하게 증가하였다. 2) 음주하지 않은 상태에서 갈근 투여 전과 후를 비교한 결과, 갈근 투여 후에는 알코올 갈망이 유의하게 감소하였으며 이때에 우측 미상핵의 두부와 좌측 안와전두엽에서 유의한 혈류량의 증가를 보였다. 3) 음주한 상태에서, 갈근 투여 전과 후를 비교하면, 갈근 투여 후에는 양측 미상핵 두부와 양측 시상에서 유의한 혈류량의 감소를 보였다. 4) 갈근 투여 후에는 음주 전에 비해서 음주 후에 알코올 갈망의 증가를 보이지 않았으며, 양측 미상핵 두부의 혈류량은 감소하였다. 저자는 이러한 결과에서, 갈근이 알코올 의존환자에서 기초 음주 욕구를 감소시키고 음주 후에 유발되는 알코올 갈망의 증가를 차단하며 이러한 음주욕구의 변화와 변연계선조체 특히 미상핵의 국소 혈류량의 변화 사이에 의미있는 연관성이 존재할 것으로 시사한다. In light of recent reports of the effectiveness of Radix puerariae in the alcoholics and recent formulation of a hypothesis that craving for alcohol in the alcohol-dependent individual is mediated by a limbic circuit involving the fronto-thalamic and fronto-striatoaccumbal region, the authors studied the effect of Radix puerariae on craving for alcohol and cerebral blood flow(rCBF) of these regions. The subjects were hospitalized patients with alcohol dependence recovered from acute intoxication and withdrawal symptoms. On the first day of experiment, rCBF in the areas of caudate nuclei, thalamus and orbitofrontal cortices was measured by Single-Photon Emission Computed Tomography. On the third day, the same procedure was repeated after intake of a small priming dose of alcohol. Radix puerariae in dose of 12gm/day for 10 days was given from fourth day of experiment to the thirteenth day and on the eleventh and thirteenth days, the measurements of rCBF were repeated in the same method as in the first and third day, respectively. Immediately before measurements of the rCBF in each experiment, craving for alcohol was measured by means of Visual Analogue Sale. The results were as follows : 1) Before the treatment of radix puerariae, the alcohol-dependent patients developed a significant alcohol-induced alcohol craving and a concomitant increase of rCBF in the right head of caudate nucleus. 2) Radix puerariae significantly lowered alcohol craving and significantly increased rCBF in the right head of caudate nucleus and the left orbitofrontal cortex in alcohol-free, basal condition. 3) After the treatment of radix puerariae, the rCBF after alcohol intake in bilateral caudate nuclei and bilateral hemithalami was significantly decreased. 4) Radix puerariae did not induce post-alcohol craving for alcohol and significantly decreased post-alcohol rCBF in bilateral caudate nuclei. From these results, it is suggested that Radix puerariae decreases basal alcohol craving in the alcohol-dependent patients, and further that there may exist a significant association between these changes of alcohol craving and concomitant changes of rCBF in the limbic striatim, especially caudate nucleus.

      • KCI등재

        24주간 추적하는 임상 연구에서 한국인 남자 알코올 의존 환자의 비재발률

        강철중,김성곤,남궁기,조동환,이병욱,최인근,최용성,박성봉,제영묘,김현경,김성연 大韓神經精神醫學會 2006 신경정신의학 Vol.45 No.1

        Objetives : In order to provide useful data tbr the further clinical studies with Korean alcohol-dependent patients, enrollment and non-relapse rates were investigated while alcohol-dependent patients wcre followed up for 24 weeks. Methods : The subjects of this study were alcohol-dependent male patients who, for the first time, visited a hospital among 3 groups of hospitals, University Hospital, General Hospital or Mental Hospital, or those who needed to be followed up after discharge from those hospitals. After assigning 12 subjects to each hospital, we investigated enrollment and non-relapse rates while cognitive-behavioral therapy and pharmacotherapy were provided. Results : 1) Forty-eight patients were enrolled and the rate of enrollment was 36.4%. The enrollment rate in the University Hospital group was 52.1%, in the General Hospital group 50.0%. and in the Mental Hospital group 10.4%. 2) In 48 patients, non-relapse rate was 27.1% at 12 week and 18.8% at 24 weeks after starting follow-up. It was 24.4% and 20.0% at 12 and 24 weeks, repectively, in the University Hospital group while the General Hospital group showed 33.3% and 16.7%, respectively, and the Mental Hospital Group showed 20.0% at both 12 and 24 weeks. Conclusion : These results provide important data for further clinical studies of Korean alcohol-dependent patients.

      • 基礎運動能力檢査의 妥當度 및 評價基準分析

        黃喆文,金重雄,表內淑,黃太相 釜山大學校 附設 體育科學硏究所 1988 體育科學硏究所 論文集 Vol.4 No.-

        In administrating 323 subjects (man : 294, woman : 29) for admission to the department of physical education, college of education, Pusan National University during two years, the General Motor Ability Test was measured in order to analyze the validity and reliability of evaluation norm in choosing events and grading. The subjects were tested in seven events : 1) 100m Dash, 2) 1500m Run(man), 800m(woman), 3) Throwing Hand-Ball, 4) Broad jump, 5) Chinning(man), Flexed-Arm Hang(woman), 6) Zig-Zag Run, 7) Trunk Flexion. The results are as followes ; 1. In 100m Dash, 1500m Run, and Throwing Hand-Ball, man's average recordes were shown normal distribution which was inclined towgrd low 11 grade. So it was analyzed that we must regulate the interval size to lower. 2. Average records of Broad Jump in were distributed into the somewhat high (3-7) grade (about 78.6%). Then, the interval size must be regulated higher. 3. In chinning, Zig-Zag Run, and Trunk Flexion man's average records were shown normal distribution, and the average and the standard deviation were similar to present records. 4. For woman, it was impossible to analyze correctly in all seven because of the small number of subjects. So it was analyzed for the sake of the reference. There will be an exact analization in choosing the interval size and standard records. 5. Investigating the validity of the choosing seven events. We found out that 100m Dash was chosely interrelated with others, and so it was the dependent event. But other events were independent. Then, we could say that they were chosen reasonably.

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