• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2002년도 추계학술발표논문집 (하)
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• pp.1811-1814
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• 2002

본 논문에서는 3차원 데이터베이스와 4S-Van 에서 획득된 GPS 관련 데이터를 이용하여 사용자에게 비디오내의 지리 객체들의 정보를 제공해 줄 수 있는 미디어 GIS 시스템 구조로 제안한다. 비디오내의 지리객체에 대한 지리정보 서비스를 위해 실세계 비디오와 3차원 그래픽 세계를 매핑할 수 있는 가상 세계 매핑(VWM; Virtual World Mapping) 이라는 새로운 상호 운용적인 지리데이터 서비스 개념을 소개한다. 제안한 기법은 임의의 비디오 프레임에 대한 3차원 가상공간을 재구성하여 지리정보 및 소성정보를 쉽게 검색해 낼 수 있다. 또한, 2차원, 3차원, 미디어 데이터간의 상호연계 및 운용기능을 제공함으로써 기존의 지리정보시스템 분야의 새로운 패러다임을 제시한다. 가상 세계 매핑기법은 기존의 비디오에서 얻어진 이미지에 대한 별도의 이미지 프로세싱 과정 없이 지리정보를 서비스 할 수 있다는 장점을 가진다. 제안된 방법을 이용하여 비디오 영상을 스트리밍하면서 클라이언트가 지리 정보서비스 받을 수 있는 GeoVideo 서버 및 웹을 통해 서비스를 제공하는 GeoVideo 클라이언트 시스템을 구현하였다.

• 한국기계가공학회지
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• 제7권4호
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• pp.115-120
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• 2008

The fatalities of pedestrian accounted for about 40.0% of all fatalities in Korea (2005 year). In pedestrian involved accident, the most important data to inspect accident is throw distance of pedestrian. The throw distance of pedestrian can be influenced by many variables, such as vehicular frontal shape, vehicular impact speed, the offset of impact point, the height of pedestrian, and road condition. The trajectory of pedestrian after collision can be influenced by vehicular frontal shape classified into sedan type, box type, SUV type and van type. Many studies have been done about pedestrian accident with passenger car model and bus model for simple factors. But the study of pedestrian accident by van type vehicle was much insufficient, and even that the influence of multiple factors such as the offset of impact point was neglected. In this paper, a series of pedestrian kinetic simulation were conducted to inspect relationship between throw distance and multiple factors with using PC-CRASH s/w, a kinetic analysis program for a traffic accident for van type. By based on the simulation results, multi-variate regression was conducted, and regression equation was presented.

• 한국실내디자인학회논문집
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• 제16권3호
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• pp.30-37
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• 2007

This research is to find out the characteristics and significance of the plastic experiments with colored planes in Theo van Doesburg's works. Based on the analysis, the following results have been obtained. First, Thea van Doesburg's plastic experiments with colored planes started from the paintings in 1916-1918. series and series were made of the ion of still life or human motion. These paintings were intended to make effects of rhythm, acceleration and simultaneity. Second, he colored the outer and inner architectural surface with primary colors. The expression of visual. rhythm on the color design for De Vonk, Districts Housing Projects VIII & IX in Spangen, Multi-Housing in Oosterstraat, Friesian Housing, Landbouw Winter School, and University Hall in Amsterdam embodied the concept of painting-in-architecture. Third, the field of these experiments were extended into the architectural space. As a results, $H\hat{o}tel$ Particulier and Maison d'Artiste was shown on the Architectural Exhibition in Paris in 1923. The colored planes were used as a construction material. They generated the dynamic space in architecture. Fourth, through the pictorial works like Architectural Analysis, Contra-Composition, Simultaneous Composition or Simultaneous Contra-Composition, Tesseract and Aubette Cinema-Dancing Hall, he created the concepts of simultaneous integration including nature and the environments as well as space-time in the architecture.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제4권2호
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• pp.63-77
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• 2000

The purpose of this article is to devise the activities based on van Hiele levels of geometric thought using computer software, Geometer\\\\`s Sketchpad(GSP) as a tool. The most challenging task facing teachers of geometry is the development of student facility for understanding geometric concepts and properties. The National Council of teachers of Mathematics(Curriculum and Evaluation Standards for School Mathematics, 1991; Principles and Standards for School Mathematics, 2000) and the National Re-search Council(Hill, Griffiths, Bucy, et al., Everybody Counts, 1989) have supported the development of exploring and conjecturing ability for helping students to have mathematical power. The examples of the activities built is GSP for students ar designed to illustrate the ways in which van Hiele\\\\`s model can be implemented into classroom practice.

• 한국안전학회지
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• 제17권4호
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• pp.140-145
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• 2002

The Flash Point is one of the most important combustible properties used to determine the potential for fire and explosion hazards of chemical materials. An accurate knowledge of the flash point is important in developing appropriate preventive and control measures in industrial fire protection. The lower flash points for the Water + n-Propanol systems were measured by using Pensky-Martens closed cup tester. The experimental data were compared with the values calculated by the laws of Raoult and van laar equation. The calculated values based on the van Laar equation were found to be better than those based on the Raoult's law.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 제37회 하계학술대회 논문집 C
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• pp.1388-1389
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• 2006

금속의 전기비저항 측정은 4단자 방법, van der Pauw 방법, Four Point Probe(FPP) 방법 등이 있으며, 이들의 정확한 측정방법을 고찰하고, 그 중 FPP 방법에 의한 비저항의 두께효과를 비교 분석하기 위하여 비자성 금속 SUS 316을 두께별로 가공한 후 실험하였다. 그 결과 4단자 및 van der Pauw 방법으로 측정된 도전율은 각각 2.273 %IACS으로 나타났으며, FPP방법으로 측정된 도전율은 probe spacing 5.0 mm, dc current 10 A에서 시료의 두께가 2 mm일 때 2.288 %IACS, 3 mm일 때 2.271 %IACS로서 상기 두 방법으로 측정한 결과와 0.5 %이내에서 일치하였으나, 시료가 5mm 및 11 mm 에서는 매우 큰 오차를 나타냈다.

• 미생물학회지
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• 제48권2호
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• pp.116-124
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• 2012

2008년 3월, 서울의 상수원으로 이용되는 한강에서 분리된 Enterococcus 76주를 동정하고 이 균주들에 대한 항생제 감수성과 항생제 내성유전자 구조분석, 교차접합, PFGE 및 MLST를 실시하였다. 분리 균주 중 E. casseliflavus는 25주이었으며, E. faecalis 및 E. hirae가 각각 4주 및 1주이었다. 항생제 감수성을 조사한 결과 15주가 vancomycin에 대해 내성을 나타내었으며 E. faecium 11주와 E. casseliflavus 4주가 VRE인 것을 알 수 있었다. VRE를 대상으로 vanA 유전자 검출을 통해 6주의 E. faecium가 vanA를 가지는 VREF임을 밝혔으며, vanA가 포함된 transposon인 Tn1546 구조를 분석한 결과 Km36과 Km37은 Tn1 type, Km20과 Km38은 Tn2 type 그리고 Km 39와 Km40은 Tn3 type으로 나타났다. PFGE 결과 6주의 VREF 중 Km36과 Km37은 동일한 subtype을 나타내었으며, 나머지 4주는 각기 다른 subtype을 나타냈다. VREF 6주를 대상으로 MLST를 실시한 결과 3주는 ST78, 나머지 3주는 각각 ST18, ST192 및 ST230로 나타났다. 이들의 clonal complex는 모두 병원에서 분리되는 CC17로부터 파생된 것으로 파악되었으며 4주는 CC78에, 나머지 2주는 각각 CC18과 CC192에 포함된 것을 확인할 수 있었다.

• Bulletin of the Korean Chemical Society
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• 제23권2호
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• pp.195-200
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• 2002

Fluorescence excitation spectrum of the trans.trans-1,3,5,7-octatetraene(OT)-Xe van der Waals clusters formed in supersonic jet expansions has been obtained. The transition lines corresponding to the van der Waals cluters of OT with Xe are observed in the lower frequency side of the OT band origin. Based on the spectral shifts, fluorescence lifetimes, and concentration dependence of the peak intensities, most of the transition lines are assigned to the $OT-Xe_n$ (n = 1, 2, 3, 4) clusters. Long progressions of a van der Waals vibrational mode are observed for n = 1, 2, 3 and 4 clusters and assigned to rocking of the OT moiety with respect to the Xe atom with the help of ab initio quantum mechanical calculation.

• 한국항해학회지
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• 제15권3호
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• pp.13-24
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• 1991

This paper aims to determining the optimal capacity of Pusan port in view point of Container Physical Distribution cost. It has been established a coast model of the container physical distribution system in Pusan port is composed of 4 sub-systems and in-land transport system. Cargo handling system, transfer & storage system and in-land transport system, and analyzed the cost model of the system. From this analysis, we found that the system had 7 routes including in-land transport by rail or road and coastal transport by feeder ship between Pusan port and cargo owner's door. Though railway transport cost was relatively cheap, but, it was limited to choose railway transport routes due to the introducing of transport cargo allocation practice caused by shortage of railway transport capacity. The physical distribution ost for total import & export container through Pusan port was composed of 4.47% in port entring cost, 12.98% in cargo handling cost, 7.44% in transfer & storage cost and 75.11% in in-land transport cost. Investigation in case of BCTOC verified the results as follows. 1) The optimal level of one time cargo handling was verified 236VAN (377TEU) and annual optimal handling capacity was calculated in 516, 840VAN(826, 944TEU) where berth occupancy is $\rho$=0.6 when regardless of port congestion cost, 2) The optimal level of one time cargo handling was verified 252VAN (403TEU) and annual optimal handling capacity was calculated in 502, 110VAN (803, 376TEU) where berth occupancy is $\rho$=0.58 when considering of port congestion cost.

• 한국GIS학회:학술대회논문집
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• 한국GIS학회 2001년도 추계학술발표대회
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• pp.39-46
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• 2001