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李相來 忠州大學校 1978 한국교통대학교 논문집 Vol.11 No.2
The rise time response of a pulse transfcrmer is important in the power control system This paper note that in order for the output to rise rapidly, the leakage inductance and the shunt Capacitance must be kept small. The rise time may al so be reduced by reducing a small ualve of will result in a highly at tenuated cutput uoltage.
지식 베이스의 에이젠트화에 의한 지식 미디어 시스템에 관한 연구
조정래,손영수,배상현 조선대학교 기초과학연구소 1996 自然科學硏究 Vol.19 No.1
The knowledge of the specialized fields has been changed rapidly in the both side of quantity and quality. A hyper media as a knowledge based system is so fixed in the linked media in mutual that we couldn't tell it information provision with the view of user. In this paper, we propose the way of offering intellectual and flexible information which is same with demand in the side of user, selecting, searching and composing the hypertext at the point of user's view through the design of knowledge media system. three concepts is used in order to challenge the knowledge media system : special document, agent system and ontology. The special document is a knowledge using special fields. The agent system is a homogeneous controller that operates on and application to ensure that its activities are coordinated with those of the others within the community, providing a uniform control mechanism. The last 3th concept, ontology is a language for knowledgement, which is a message exchanged among agents to ensure the proper interaction among them. The combination of these three concepts is used designed the prototype of knowledge media system.
급성 심근경색증 진단을 위한 Triage® Cardiac System의 진단적 유용성 : Comparison with Established Devices
이상래,김미란,노준영,류석용,김홍용,김성준 대한응급의학회 2002 대한응급의학회지 Vol.13 No.4
Purpose: The purpose of this study is to evaluate the diagnostic value of the Triage® Cardiac System (Biosite, USA) for quantitative detection of acute myocardial infarction. Methods: During a three-month period, we prospectively studied the cases of patients who visited the emergency department (ED) with suspicious acute ischemic chest pain. With the exclusion of patients with stable angina (according to ACC/AHA guideline) and non-cardiogenic chest pain, a total of 20 patients were studied. We evaluated the sensitivity and the specificity of the Triage® Cardiac System, and we compared the results with those from an established device (Elecsys® 1010, Boehringer Mannheim, Germany) by using a Pearson correlation and the student t-test. Results: The mean operating time of the Triage® Cardiac System was faster than that of the established device (16±1.2 min vs 30±0.6 min). The sensitivity and the specificity were same for the two devices. The sensitivity and the specificity of CK-MB were 63.6% and 88.9% respectively, and those of cardiac troponin were 54.5% and 100%. In the evaluation of patients who arrived at the ED after 4 hours of symptom onset, the sensitivity and the specificity were high. The Pearson correlation of CK-MB between the two devices was significant (r=0.970, p<0.01). The CK-MB values of acute myocardial infarction were significantly different with unstable angina (Triage® Cardiac System: t=2.857 p=0.017; Elecsys® 1010: t=2.804 p=0.018). Conclusion: The Triage® Cardiac System is a good diagnostic device for acute myocardial infarction, and its fast reporting of the result and its ease to use in the ED are superior to those of the established device.
이상래,류석용,김홍용 대한응급의학회 2002 대한응급의학회지 Vol.13 No.4
The pneumoretroperitoneum has many etiologies. These range from the clinically insignificant to the potentially fatal, if not recognized promptly. Spontaneous pneumoretroperitoneum can develope from ulcerative colitis, colonic diverticulitis, or duodenal ulcer perforation. It can be associated with pneumothorax, pneumomediastinum, respiratory tract rupture, etc. An isolated pneumoretroperitoneum are a more obscure symptom than a pneumoperitoneum. Mostly, the diagnosis of retroperitoneal air depends of radiologic methods, such as simple X-ray, ultrasound (US), or computerized tomography (CT) measurements. In this case, we diagnosed a pneumoretroperitoneum from CT and found that if caused the perforation of the colon spontaneously, without any underlying diseases, due to chronic constipation without underlying diseases
강성원,조한래,한설해,박현주,정인성,홍선미,김성걸,이헌영 충남대학교 의과대학 지역사회의학연구소 1993 충남의대잡지 Vol.20 No.2
In 58 patients who were admitted to department of internal medicine, ChungNam national university hospital from January 1989 to March, 1993. We evaluated for medical treatments and the following results were obtained. 1) The ratio of male and female was 1 : 1 and mean age of the patients was 57.4 years. 2) At arrival on hospital, the most common clinical symptom was pain in right upper quadrant and epigastrium(93.1%), the remainders were fever and chill(79.3%), nausea(51.7%) and vomiting(36.2 %) in order of frequency. 3) The most common physical findings was tenderness on the right upper quadrant and epaigastrium(98%), the remainders were jaundice(50%) and palpable gall bladder(13.8%) in order of freguency. 4) In laboratory examination, elevated levels of ESR(82.8%), leukocytosis(67.2%), elevated levels of AST(62.0%), ALT(50.0%), serum total bilirubin(51.7%) and alkaline phosphatase (43.1%) were noted. 5) The mean period of NPO was 3.9 days and the mean hospital period was 13.5 days. 6) The rates of combined complications in patients with acute cholecystitis were 17.2%; these are gall bladder empyema(5.2%), hydrops(5.2%), perforation(3.4%), sepsis(3.4%) and intestinal obstruction (1.7%). 7) In 96.6 percent of 58 cases, the symptoms of acute cholecystitis were improved by conservative management. 8) The mean follow-up period was 25.5 months and the recurrence rate was 10% during this period.
국내 항만의 효율 촉진을 위한 선진 물류산업 집적지의 네트워크에 관한 연구
최상래,정종식 한국물류학회 2005 물류학회지 Vol.15 No.1
최근에 전자상거래가 확산되고 지역발전을 추구하면서 물류가 한층 더 중요해지고 있다. 더욱이 중국, 러시아, 일본 등이 동북아시아에서 물류중심국이 되고자 항만과 공항, 운송체계, 관련 산업 등을 육성하면서 국내에서도 항만을 중심으로 한 물류거점을 육성하고자 하는 움직임이 나타나고 있다. 이러한 움직임은 선진 항만이나 정부에서 시행하는 각종 정책이나 인프라 건설 등에 한정되어 그 바탕이 되고 연결과 탐색에 중요하며 지역경쟁력을 창출하기 위한 네트워크로 이어지지 않고 있다. 이러한 문제점은 한국 항만의 경쟁력을 강화하지 못하기 때문에, 선진 물류산업 집적지에서 도출한 시사점을 이용하여 방안을 제시하였다. Recently, the cluster-based industrial policy has become a useful policy tool for enhancing the competitiveness of nations, regions, industries and firms. Clusters would provides them with special access, closer relationships, better information, powerful incentives, and other advantages that are difficult to tap from a distance. Especially, the logistics clusters are strategic networks, knowledge-sharing networks, social networks which can be used as a systematic foundation for providing one-stop value added logistics service to its customers. The competitiveness of the logistics clusters rely definitely on cluster's networks composing of participants, central and local government, universities and related institutes, private companies and individuals, taking part in businesses, conferences, etc held in the clusters and the neighborhoods.