• 한국공간구조학회:학술대회논문집
• /
• 한국공간구조학회 2006년도 춘계 학술발표회 논문집 제3권1호(통권3호)
• /
• pp.49-57
• /
• 2006

Performance based seismic design is a very efficient method in evaluating the seismic capacity of building. In this study, the method estimating the performance point of the spatial structures based on capacity spectrum method(CSM) is proposed. And for efficient evaluation for the performance point of the spatial structures, the algorithm to convert spatial structural system to ESDOF system is proposed. Its efficiency is confirmed by comparing with time history analysis of full model. And dynamic behaviors of spatial structures are examined by using this method. At last, evaluation of structural performance according to variation of stiffness after plastic deformation is carried out.

• 한국BIM학회 논문집
• /
• 제5권3호
• /
• pp.1-10
• /
• 2015

We have researched a character of BIM(Building Information Modeling) and GIS(Geographic Information System) data for integrated utilization of urban spatial data and building data for $CO_2$ reduction. We consider literature on integrated utilization of BIM and GIS and measure method of $CO_2$ in urban spatial unit. Among them without distortion of standard data structure, derive method how to install between BIM and GIS standard data. Rhino & Grasshopper is utilization tools of DB platform. The compatibility with existing BIM and GIS data format, graphic and numeric results can be output at the same time. And using the existing ARCHSIM, it can be easily combined for building energy analysis program. Based on BIM and GIS data to run an energy analysis target on Majang-dong, it could be poly synthetically derived the value information and graphic information.

• 한국콘텐츠학회논문지
• /
• 제13권11호
• /
• pp.415-422
• /
• 2013

최근 인터넷 및 사이버 관광을 위한 다양한 콘텐츠 개발이 여러 분야에서 시도되고 있다. 3차원 지형환경의 공간 영상콘텐츠는 국토계획 및 국토정보의 미래 관광콘텐츠로서 입체적인 유비쿼터스 도시 구현에 의한 안전한 관광을 위한 주요한 공간정보로 이용할 수 있게 됨에 따라 그 중요성이 크게 부각되고 있다. 국내 운행하고 있는 국토 및 도시지역의 국토의 공간정보를 정밀하게 촬영하기 위하여 인공위성과 항공기에 카메라를 탑재하여 원하는 지역에 대한 다양한 사진영상을 입체 촬영을 실시하여 필요한 공간 정보를 확보할 수 있게 되었다. 다양한 지형공간정보를 직접 혹은 간접으로 수집하여 데이터베이스화하기 위한 정확한 초기 공간 자료의 수집, 저장, 편집, 조작 및 응용기술의 데이터베이스 구축을 통하여 미래의 변화된 3차원 지형 공간 콘텐츠 구성을 확보하여 유비쿼터스 미래 체험관광을 새로운 관광산업에서 크게 활용할 수 있도록 하였다. 본 연구의 결과로 미래 입체관광을 위한 3차원 지형공간정보의 분석과 모델링에 의하여 지능형 국토정보화와 더불어 간접적으로 입체적인 현장체험과 관광 적지분석으로 다양한 공간정보의 취득과 활용을 입증할 수 있었다.

• 한국BIM학회 논문집
• /
• 제13권3호
• /
• pp.39-47
• /
• 2023

This study aims to introduce a model for enhancing community well-being through the utilization of public open data. To objectively assess abstract notions of residential satisfaction, text data from complaints is analyzed. By leveraging accessible public data, costs related to data collection are minimized. Initially, relevant text data containing civic complaints is collected and refined by removing extraneous information. This processed data is then combined with meaningful datasets and subjected to topic modeling, a text mining technique. The insights derived are visualized using Geographic Information System (GIS) and Application Programming Interface (API) data. The efficacy of this analytical model was demonstrated in the Godeok/Gangil area. The proposed methodology allows for comprehensive analysis across time, space, and categories. This flexible approach involves incorporating specific public open data as needed, all within the overarching framework.

• Nonlinear Functional Analysis and Applications
• /
• 제29권3호
• /
• pp.711-738
• /
• 2024

This study develops an optimal control strategy for canine rabies transmission using a two-dimensional spatiotemporal model with spatial dynamics. Our objective is to minimize the number of infected and exposed individuals while reducing vaccination costs. We rigorously establish the existence of optimal control and provide a detailed characterization. Numerical simulations show that early intervention, in particular timely vaccination at the onset of an outbreak, effectively controls the disease. Our model highlights the importance of spatial factors in rabies spread and underlines the need for proactive vaccination campaigns, providing valuable insights for public health policy and intervention strategies.

• 한국대기환경학회지
• /
• 제27권1호
• /
• pp.30-40
• /
• 2011

Numerical simulations were carried out to investigate the impact of SST spatial distribution on the result of air quality modeling. Eulerian photochemical dispersion model CAMx (Comprehensive Air quality Model with eXtensions, version 4.50) was applied in this study and meteorological fields were prepared by RAMS (Regional Atmospheric Modeling System). Three different meteorological fields, due to different SST spatial distributions were used for air quality modeling to assess the sensitivity of CAMx modeling to the different meteorological input data. The horizontal distributions of surface ozone concentrations were analyzed and compared. In each case, the simulated ozone concentrations were different due to the discrepancies of horizontal SST distributions. The discrepancies of land-sea breeze velocity caused the difference of daytime and nighttime ozone concentrations. The result of statistic analysis also showed differences for each case. Case NG, which used meteorological fields with high resolution SST data was most successfully estimated correlation coefficient, root mean squared error and index of agreement value for ground level ozone concentration. The prediction accuracy was also improved clearly for case NG. In conclusion, the results suggest that SST spatial distribution plays an important role in the results of air quality modeling on high ozone episode at coastal region.

• 한국산학기술학회논문지
• /
• 제11권12호
• /
• pp.5207-5215
• /
• 2010

단지계획 또는 특정 목적의 시설물 설립을 위한 적지선정은 제반여건과 주변환경을 면밀하게 고려해야 한다. 특히, 인간의 생활공간이라면 채광 및 통풍, 부지활용의 효용성 등이 중요한 요소이다. 이를 위해서 3차원 지형 모델링과 가상 시뮬레이션을 통한 다각적인 입체분석이 필요하다. 이러한 지형모델링에 필수적인 고해상 위성영상이 아리랑2호 위성(KOMPSAT2)을 통해 국내기술로 제공되고 있으므로 저렴한 비용으로 처리가 가능해 졌다. 본 연구에서는 특정목적의 단지계획을 위해 몇 개의 후보지를 선정하고 3차원 지형모델링과 토지정보를 이용하여 적지분석을 하고자 하였다. 이를 위해 필지분석, 지가산정, 경사도 분석, 향분석을 실시하였으며 각 후보지 별 평가지표를 마련하여 정량적인 평가를 시도한 결과 효율적이며 합리적으로 적지선정을 할 수 있었다.

• 한국주거학회논문집
• /
• 제10권2호
• /
• pp.175-183
• /
• 1999

This study aims at modeling the compositional method in the architectural space and shape. The composition of space is composed of the position and the area in space. Therefore these elements are established to the functional program applied at the behavioral data. The element of spatial structure is position and scale in space, and the composition of spatial shape is developed repitionally to the combination of build-up method. The functional program is being expertised and the scale in building being lager, the importance of functional program is increased. Applied at data of the functional program at spatial structure, the process is developed to the method of combination. The purpose of this study is approached at the degree of application in modeling on the compositional method in architectural space and shape, which is a fundamental aspect on the quantitative analysis of architectural space.

• 한국GIS학회:학술대회논문집
• /
• 한국GIS학회 2008년도 공동추계학술대회
• /
• pp.251-253
• /
• 2008

Erosion and landslide cause serious damage to forest areas. As a consequence, partial or complete destruction of vegetation occurs, which leads to many cascading problems. In this study, an attempt has been made to identify the forest areas, which are under different risk categories of erosion and landslide, in part of Eastern Ghats of Tamil Nadu. Relevantthematic maps were generated from satellite data, topographical maps, primary and secondary data and weights to each map were assigned appropriately. Weighted overlay analysis was carried out to identify the erosionprone forest areas. The result of erosion and landslide prone model reveals that 4712 ha(17%) of forest area is under high risk category and 15879 ha(58.65%) isunder medium risk category. The results of spatial modeling would be very much useful to the forest officials and conservationist to plan for effective conservation.

• 대한원격탐사학회:학술대회논문집
• /
• 대한원격탐사학회 2002년도 Proceedings of International Symposium on Remote Sensing
• /
• pp.553-558
• /
• 2002

Physical sensor model in pushbroom satellite images can be made from sensor modeling by rotation parameters and attitude parameters on the satellite track. These parameters are determined by the information obtained from GPS, INS, or star tracker. Provided from satellite image, an auxiliary data error is connected directly with an error of rotation parameters and attitude parameters. This paper analyzed how obtaining satellite images influenced errors of rotation parameters and attitude parameters. furthermore, for detailed analysis, this paper generated simulated satellite image, which was changed variously by rotation parameters and attitude parameters of satellite sensor model. Simulated satellite image is generated by using high-resolution digital aerial image and DEM (Digital Elevation Model) data. Moreover, this paper determined correlation of rotation parameter and attitude parameters through error analysis of simulated satellite image that was generated by various rotation parameters and attitude parameters.