MATLAB을 이용한 자동차 정속주행 시뮬레이션

한창훈,김승철,박종오,박재현,임영도 東亞大學校 附設 情報通信硏究所 1997 情報通信硏究所論文誌 Vol.5 No.1

An advanced Fuzzy Controller to cruise on the longitudinal road intelligently is proposed in this paper. Typically the vehicle model is represented by velocity, due to its dynamic property and non-linearity. Linear acceleration controller described as the first Fuzzy Controller of most effective control method is applied mainly and the second one based on linguistic description for riding sensitivity is linked with the first and applied. A designed controller is evaluated under MATLAB SIMULINK simulation after it being adapted for virtual vehicle model.

자기통제 피드백이 배구 언드핸드 토스의 수행과 학습에 미치는 영향

한남익,박종태,표내숙,박철용 釜山大學校 附設 體育科學硏究所 1998 體育科學硏究所 論文集 Vol.14 No.-

The purpose of this study was to investigate where a feedback(self-controlled) schedule controlled by learner would be a more effective means of delivering feedback than any predetermined feedback schedule. Subjects(n=60) were randomly assigned to one of five conditions : Control condition, 50% relative frequency feedback condition, bandwidth feedback condition, self-controlled performance feedback condition, and yoked control condition. Experiment was designed to determine the optimal feedback condition for performance and learning of underhand toss. In experiments, subjects performed 50 acquisition and two retention trials blocks were analyzed with two experimental conditions to which they had been assigned. Data obtained from all subjects in five acquisition and two retention trials blocks were analyzed with two separate analyses of variance for each of four error scores. Analysis performed on the acquisition trials were a 5×5(condition ×trial block) analysis of variance(ANOVA) with repeated measures on the second factor. The retention trials were analyzed in a 5 ×2(condition ×trial block) analysis of variance with repeated measures on the second factor. Dependent measures were absolute error(AE), and variable error(VE). In conclusion, it should be stressed that the results of this study do support the guidance hypothesis of feedback and these findings showed that self-controlled subjects tend to produce improvements in the learning of underhand toss.

PT 설계를 위한 속성화된 모듈화법을 따르는 요소분할법

유종철,한운동,이수길 충주대 산업과학기술연구소 1995 産業科學論文集 Vol.3 No.-

In this study, the new method of element division based on modulifcation which has two kinds of sectors and attributed at each, linked whole area is suggested. Conventional division method has served appropriate to the shape of subdivision degree while the subdivision is needed to conversion step but modulificated element subdivision link method has the merits that it has not need to change attribute of sectors according to the shape and the whole analysis area could be included by simple combination of basic vectors.

콜레스테롤 생합성 저해제 검색법의 개발

임종철,이남훈,김한균,염형렬,이대호,강현석,류형선,명재일,김완,신부안 全南大醫大 2001 전남의대학술지 Vol.37 No.2

동종골수이식 환자에서 발생한 지역사회발생 Parainfluenza virus 3형 폐렴 1예

신종욱,조요한,강철인,김성한,이상윤,김의석,오명돈,이환종,박선양,김병국,최강원 대한감염학회 2002 감염 Vol.34 No.5

슬래브 道路橋에서 標準斷面과 最適斷面의 比較解析

김종인,김한철 대구대학교 산업기술연구소 1984 産業技術硏究 Vol.3 No.-

The revised Ministry of Construction (MOC) standard plans for highway slab bridge sections are analyzed and compared with optimum design section, according to the current requirement. The following observations are made; 1. In using material, The optimum design section is showed more economical than the MOC standard section. 2. The MOC standard plans does not utilize fully the capabilities of materials, of exceeds the allowable values. e.q.: Working stress of steel and concrete show significant amount of allowance(13 to 15% in the span 8 and 10m, while in the span 10m and 12m, the steel show 5 to 6%, and the concrete shows 1% to 4% exceedingly in comparison with the allowable values.) 3. The distributor bars of the MOC standard plans are used ver 31 to 213% and contain some obvious discrepancies in details. e.q.: Distributor bars are either over under placed, and main reinforcements are placed inside the distributors to reduce the effective depths of the given sections. This indicates that the MOC standard plans are far from optimal and have plenty room to improve under the provailing design conditions.

韓國에 있어서 肝吸蟲症 分布에 관한 疫學的 硏究

宋寅喆,李駿商,林漢鐘 고려대학교 의과대학 1983 고려대 의대 잡지 Vol.20 No.1

Korea, a total number of 19,758 stool specimens were collected from the inhabitants who lived in the basins of main 6 rivers, i.e. the Han River, the Gum River, the Nakdong River, the Mangyong River, the Yongsan River and the Seomjin River. The specimens were examined both by cellophane thick smear method and Stoll's egg counting technique during the period from March 1973 to October 1982. The distribution and infection rates were compared in those of river and non-river sides, and the epidemiological statrs was analysed statistically by the regression equations and catalytic curves with the results obtained from two endemic areas. The results are as follows: 1. High egg positive rates were revealed among the inhabitants in the areas of all above river basins, whereas low egg positive rates were obtained among the inhabitants in the areas apart from the riversides. However, in some areas which are not directly connected with the rivers, relatively high rates of Clonorchis infection were also observed. 2. The infection rates of Clonorchis sinensis by sex age were shown significantly different among the population in the most of these studied areas. The rates for males were significantly higher than that for females, and the rates were increased by the higher age groups up to 40 to 59 years old. However in the high endemic areas such as Kimhae the infection rates of both sexes were almost parallel and practically similar high rates revealed in all age groups for 20 to 60 years old. 3. The mean E.P.G. count of Clonorchis infection in the surveyed areas was found higher in the areas which shown as higher infection rates. The degree of the intensity of Clonorchis infection by E,P.G. counts was evenly distributed to heavy and very heavy infections as well light and moderate infections in the areas showed high infection rates. 4. The intensity of endemicity in all surveyed areas was compared with the regression equations calculated with the cumulative percentages of E.P.G. counts. 5. For the quantitative analysis of epidemiology of clonorchiasis in Kimhae and Pyongtrek areas, special type of simple catalytic model was applied to the age prevalence rates revealed through stool examination for Clonorchis eggs and intradermal test for the detection of positive reactors. 6. It was suggested that the two-stage catalytic was well fitted to the prevalince rates by sex and age in the egg positive cases in Kimhae and Pyongtaek areas, and the calculation lead to the equation y=1.042(e-^(0.003t)-e^(-0.074t), a=0.074〉b=0.003 in Kimhae area, and y=1.412(e^(-0.024t)-e^(-0.041t), a=0.024〈b=0.041 in Pyongtaed area. 7. In the high endemic area such as Kimhae, the tendency of familial aggregation was not recognized by statistical analysis. In this area, the mean E.P.C. obtained from same persons in 1973 were compared and descussed statistically.

건설정보 국제산업표준(IAI/IFC)의 2차원 확장모델 개발에 관한 연구 : 모델 스페이스에서의 형상표현 엔티티 확장 중심으로 Focusing on the Extension of the Shape Representation Entities of Model Space

김인한,서종철,이수영,정철오 대한건축학회 2004 대한건축학회논문집 Vol.20 No.5

This research is focused on the enhancement of capabilities for 2D data representation to the IFC (Industry Foundation This research is focused on the enhancement of capabilities for 2D data representation to the IFC (Industry Foundation of IFC is that it is impossible to represent 2D elements, essential for the presentation of drawing elements. On top of that, the drawing information in IFC format can not be exchanged among the international standard complied formats such as KOSDIC, SCADEC, and STEP-CDS which are based on STEP AP202 subset. The main purpose of this research is to enhance the existing capability of IFC to represent 2D drawing elements. To achieve this goal, the presentation resources, based on ISO 10303-46 and ISO 10303-202, are annexed to the resource layer of IFC2.X. For the representation of 2D drawings, a Layer entity, Curve_styles entity, Text entity, Symbol entity, Hatch entity, Bezier curve entity, Dimension entity have been extended to the IFC2.X.

ILP法에 의한 鐵筋콘크리트 T형보의 最適設計에 關한 硏究

김한철,김종인 大邱大學校附設 基礎科學硏究所 1984 基礎科學硏究 Vol.1 No.-

This study is directed for the optimum design of R. C T-beam section for the minimum cost design of R.C structures based on the strength design Methood of ACI(318-77) code, In this study, the design constraints based on ACI code provisions, such as flexural and shear constraints are taken as the constraints of the non-linear formulation for the optimum design of R. C T-beams, and cost function including the material cost of concrete and reinforcing steel for mimimum cost design of stuctures are adopted as the objective function. The incremental Linear propogramming technique is used as the optimization technique of the non-Linear programming problem formulated in this study by successively transformming non-Linear equations into the Linear equations. It has been observed that the optimization model and technique computerized by FOR-TRAIN program for the optimum design of RC T-beam proposed in this study significantly reduce the construction cost, when compared with the conventional design. Also, it has been proved that optimization algorithm deviced in this study is very efficient for the convergence of optimization sections.

원발성 폐고혈압으로 인한 우측 심부전 부검 1 예 : Report of an autopsy case

이승철,곽정식,이상한,채종민 大韓法醫學會 1996 대한법의학회지 Vol.20 No.1

Primary pulmonary hypertension is a rare disease and diagnosed only when the underlying causes are undetermined. Pulmonary hypertension is caused largely by an increase in pulmonary vascular resistance and is most frequently chronic pulmonary obstructive diseases, recurrent pulmonary emboli or antecedent heart diseases. We experience and report a case of primary pulmonary hypertension. The pulmonary changes show atherosclerosis in all the pulmonary arteries, medial hypertrophy, intimal proliferation and fibrosis and plexiform lesion. Plexiform lesion is characteristic in the histological diagnosis of primary pulmonary hypertension when there is no other associated disease, such as liver cirrhosis, tricuspid cardiac shunts and portal vein thrombosis.