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생활 폐기물 수집.수송 관리를 위한 Expert-System 개발
강동구,류돈식,이해승,이찬기,Kang. Dong-Gu,Ryu. Don-Sik,Lee. Hae-Seung,Lee. Chan-Ki 한국방재학회 2001 한국방재학회논문집 Vol.1 No.1
본 연구에서는 체계화되지 못한 중소도시의 쓰레기 수집 수송의 자료를 정리, 현장 조사를 통한 쓰레기 수집 수송 관리를 위한 프로그램을 작성하였다. 대상은 C시로 하였으며, 수집구역을 주택, 아파트, 상가지역으로 한정지어 현장 조사를 실시하였고, 폐기물 관리 프로그램을 작성하였다. 연구 결과는 쓰레기 수집 수송단계의 필요한 인자와 중소도시에 적용 가능한 평균 값을 도출하였고, 중소도시의 쓰레기 수집 수송단계를 체계화하는 단계와 expert system을 구축하였다. 또한, Visual Basic을 이용한 쓰레기 수집 수송 관리 프로그램을 개발하였다. 결과적으로 본 연구로 개발되어진 도시폐기물의 수집 수송 관리 시스템은 다른 지역의 현장 Data를 추가함으로서 광범위하게 이용될 수 있을 것이다. This study aims to provide a program for the municipal solid waste collection and transportation management through data consolidation and field research of the materials about waste collection and transportation in a small city. The field research was conducted in the collection zone of the housing, apartment and business section within C city area. As a result, the main factor of collection and transportation plan required at the waste collection and transportation process and the central mean applying at the small city were calculated. The process that systemize the waste collection and transportation step and the expert system were constructed. In conclusion, the developed management system of the municipal solid waste collection and transportation can be wildly used by adding the data of other zone.
Clinical Effects of Hypertension on the Mortality of Patients with Acute Myocardial Infarction
강동구,정명호,안영근,채성철,허승호,홍택종,김영조,성인환,채제건,류재영,채인호,조명찬,배장호,나승운,김종진,장양수,승기배,박승정,윤정한 대한의학회 2009 Journal of Korean medical science Vol.24 No.5
The incidence of ischemic heart disease has been increased rapidly in Korea. However, the clinical effects of antecedent hypertension on acute myocardial infarction have not been identified. We assessed the relationship between antecedent hypertension and clinical outcomes in 7,784 patients with acute myocardial infarction in the Korea Acute Myocardial Infarction Registry during one-year follow-up. Diabetes mellitus, hyperlipidemia, cerebrovascular disease, heart failure, and peripheral artery disease were more prevalent in hypertensives (n=3,775) than nonhypertensives (n=4,009). During hospitalization, hypertensive patients suffered from acute renal failure, shock, and cerebrovascular event more frequently than in nonhypertensives. During follow-up of one-year, the incidence of major adverse cardiac events was higher in hypertensives. In multi-variate adjustment, old age, Killip class ≥III, left ventricular ejection fraction <45%, systolic blood pressure <90 ㎜Hg on admission, post procedural TIMI flow grade ≤2, female sex, and history of hypertension were independent predictors for in-hospital mortality. However antecedent hypertension was not significantly associated with one-year mortality. Hypertension at the time of acute myocardial infarction is associated with an increased rate of in-hospital mortality.
강동구,현재민 대한기계학회 2017 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.31 No.2
A numerical investigation was carried out for natural convection of air (paramagnetic fluid) in a cubic enclosure subjected to constant gravity and time-periodic magnetizing force. Since the magnetizing force expressed as the gradient of magnetic induction squared in each direction, has three-dimensional characteristics, three-dimensional modeling of system would be required to investigate the effect of magnetizing force more accurately. In this study as a sequent research, the basic analysis of Kang and Hyun [16] was extended to the case of three-dimensional and to cases when the magnitude of magnetizing force is varied. Two geometrical configurations for the location of electrical coils, were considered. The amplification characteristics of heat transfer rate in the cube according to the change of the magnitude of magnetizing force, were investigated especially when the resonance occurs. The numerical results showed that the heat transfer is enhanced appreciably by application of large magnitude of magnetizing force. In addition, the results for two- and threedimensional cases were also compared.
심판판정에 대한 인식이 고교유도선수의 의식 및 경기에 미치는 영향
강동구 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.5
This Study was designed to analyze the influence of Judo Judges decision on athletes mind and performance. To analyze withdraw, after removed questionnaire endiligent, to use ANOVA, Bivariate Correlations of Pearson and Multiple Regression in Window SPSS/PC+ 8.0. The results of the study were as follow; The result about the influence of Judo Judges decision on athletes mind and performance in basis variable 1. In Judges decision, the following sex was shown useful difference statistically in judge's ability and manner(p<.05). 2. 2-4 years groups were shown useful difference statistically in the influence of game(p<.05). 3. The result about Judges decision on athletes mind, it was shown useful difference statistically in judge's ability(p<.001). 4. In the influence of game, it was shown useful difference statistically in judge's manner(p<.001).
도시근교 관광지에서의 쓰레기 배출특성에 관한 조사연구 : The Gu-Gok Falls in Summer Season 하절기 구곡폭포를 중심으로
이찬기,이해승,류돈식,강동구 江原大學校 産業技術硏究所 1997 産業技術硏究 Vol.17 No.-
This investigation was carried out ot study on the generation property, management and separate collection rate of solid waste in the Gu-Gok Falls. Generation rate of solid waste was 80.785kg/day and unit waste generation rates was 65.55g/dayㆍtourist one person. Physical component of solid waste were garbage 46%, papers 20%, empty bottles 10%, respectively. A plan is required to decrease generation rate of garbage waste, As result to investigate separated garbage can, papers and can were separated more than 60%. But empty bottles and scrap iron were separated less than 50%. P.E.T, steel can, aluminum can and empty bottles were 20% of total generation rate, and profit of reuse is ₩700,800/year.