• 한국조경학회지
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• 제23권3호
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• pp.1-14
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• 1995

The aspect of visual accessibility to urban green spaces is an important factor because it contributes making pleasant environment by increasing the visual experience of nature in urban environment. But we have tried neither to consider nor to measure it. Since he concept of visual accessibility has not formally defined yet, it was operationally defined in this study. And then the model of measuring visual accessibility was suggested and verified through the case study on neighborhood parks in Seoul. The findings are as follows : 1) The concept of visual accessibility is defined as opportunity and potentiality to observe green spaces. 2) The model of measuring visual accessibility deals with not only adjacent area but also viewshed area. In adjacent area, considering factors are the area of road adjacent to green spaces and the area of exposed green spaces. In viewshed area, considering factors are the area of road located in viewshed area, the area of exposed green spaces, and the weight according to observing distance. 3) The final model of measuring visual accessibility suggested in this study is as follows.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2005년도 추계학술발표대회 논문집
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• pp.183-186
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• 2005

The purpose of this study is to actualize the planning method of the Mixed-use Housing. Enter in 2000 years, contruction of Mixed-use Housing is rapidly increasing with acrovill and tower palace as its starting point. Mixed-use Housing is topology that mix function of residential and business and commercial facilities by kind of mixed-use development. And, Mixed-use Housing which is located in busy urban commercial strict should meet the demand not only as functional city. And it is a type of urban housing that located in busy urban commercial district demands function of residential. As for locational situation and types of public space researched and analyzed in this thesis, those space were left alone with short analyzation on main consumers level as well as short recognition of public space for all of the six combined facilities of dewelling and commercing

• 토지주택연구
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• 제11권1호
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• pp.39-48
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• 2020

Main research question of this study is about whether gated community (GC) as private urban governance gets along with local public goods by locating near to them. We examine this question through testing the Tiebout hypothesis from case study of Seoul, capital city of South Korea, in which GCs are so common to test the assumption empirically. For this, we examine the meaning of GC in 3 Es viewpoints; conceptualize the framework of Tieboutian co-evolution of GC and local public goods by hedonic price modeling. As a result, possibilities are found that GCs are to be seen from different point of view, viz. co-evolutionary mechanism between private and public governance; GCs effectively capture and represent the demand of residents for local public goods through voting by their collective locational choice. It allows us different kind of approach to investigate APTs as a co-evolutionary form of private and public urban order rather than seeing them only as a tool of speculative investment, particularly in rapidly urbanizing countries like Korea.

• Korean Journal of Geomatics
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• 제2권1호
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• pp.31-35
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• 2002

This paper describes an experiment for three-dimensional positioning for a pair of KOMPSAT stereostrips using the ancillary data and a single ground control point. The photogrammetric model for three-dimensional positioning was performed as follows: first, initialization of orbital and attitude parameters derived from ancillary data; second, adjustment of orbital and attitude parameters for the satellite to minimize the ground position error with respect to a GCP using the collinearity condition; third, determination of actual satellite position; and lastly, space intersection. This model was tested for a pair of stereo strips with 0.6 base-to-height ratio and GCPs identified from a 1:5,000 scale digital map. As the result, the satellite position of offset was corrected by only one GCP and the accuracy for the geometric modeling showed 38.89m RMSE.

• ETRI Journal
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• 제43권4호
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• pp.594-602
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• 2021

Recently, quantitative and repetitive inspections of the old urban area were conducted because many structures exceed their designed lifetime. The health of a building can be validated from the condition of the outer wall, while the slant angle of the wall widely serves as an indicator of urban regeneration projects. Mostly, the inspector directly measures the inclination of the wall or partially uses 3D point measurements using a static light detection and ranging (LiDAR). These approaches are costly, time-consuming, and only limited space can be measured. Therefore, we propose a mobile mapping system and automatic slant map generation algorithm, configured to capture urban environments online. Additionally, we use the LiDAR-inertial mapping algorithm to construct raw point clouds with gravity information. The proposed method extracts walls from raw point clouds and measures the slant angle of walls accurately. The generated slant angle map is evaluated in indoor and outdoor environments, and the accuracy is compared with real tiltmeter measurements.

• 대한건축학회논문집:계획계
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• 제35권4호
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• pp.69-79
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• 2019

The purpose of this study was to analyze legal characteristics and issues of an underground pedestrian connection, which is a very useful tool to create 3D pedestrian networks and the vibrant underground environment. To do this, this paper explored the related laws to install the connection and analyzes 74 cases of Jung-gu, Seoul to find major issues. Then, it defined the legal characteristics in terms of not only the laws but also property law in Korea, thereby suggesting the improvement schemes. As a result, this paper concluded that the connections can be installed by an Urban Planning Facility or a Road Occupation Permit, but should be considered their public interest. In addition, exactions or fees for the permit should be carefully implemented based on the characters of the connection.

• 한국물환경학회지
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• 제27권6호
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• pp.841-847
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• 2011

In this study, a method to determine the design capacities of nonpoint source (NPS) pollutant treatment facilities in urban areas was suggested. A facility capacity to treat 80 percent of total SS discharge was estimated by 2-year rainfall - runoff - build-up and wash-off simulation at Goonja drainage district in Seoul. For wash-off simulation, four wash-off models (EMC, RC, EXP, and Joo model) were used. As the results, 80 percent of total SS discharge could be treated with only 7.7~31.4% facility capacity of peak flow. The suggested method and results will provide a guideline to determine design capacities of NPS pollutant treatment facility in urban areas.

• International Journal of Advanced Culture Technology
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• 제11권3호
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• pp.131-141
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• 2023

This study aimed to identify the determinants of physical frailty among the old-old adults in rural Korean communities. A total of 191 individuals aged 75 and older were included in the study, with the majority being female. Participants were classified into healthy (n=47), pre-frail (n=54), and frail (n=90) groups. Significant differences were found across these groups in terms of age, gender, education level, depression, and nutritional status. Multiple logistic regression analysis revealed that age (OR=1.16), depression (OR=0.21), malnourishment (OR=10.85), and short physical performance ability (OR=0.70) were significant predictors of physical frailty. These findings underscore the multifaceted nature of physical frailty among old-old adults in urban-rural complex communities and highlight the need for comprehensive and integrated interventions. Such interventions should consider not only physical factors but also broader health conditions and socio-demographic influences impacting the elderly. Further research is needed to develop and evaluate interventions that address these determinants and promote health equity among the elderly population in urban-rural complex communities

• 한국조경학회지
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• 제48권5호
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• pp.42-58
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• 2020

본 연구는 도시 화훼경관의 유형화에 관한 연구로서 연구결과, 첫째, 문헌과 사례를 통하여 화훼경관의 개념이 정리되기 위해서는 개념의 핵심 어휘와 문장에 공간적 요소, 형태적 요소, 자연적 요소, 인공적 요소라는 4가지 요소가 포함되어야 함을 선행연구를 통해 발견하였으며, 이 네 가지 요소를 통섭하는 화훼경관 개념을 새롭게 재구성하여 제시하였다. 화훼경관 통합 이론의 기초자료가 될 것이다. 둘째, 화훼경관이 도시경관의 한 장르로 그리고 도시경관의 단위로 정의되고 전문영역으로서 체계 구축을 위해 도시경관이라는 커다란 범주 안에서 도시경관의 개념과 특성, 기능을 고찰하고, 그 안에서 화훼경관과의 위계화 범주를 새롭게 정리하여 화훼경관의 도시경관성을 제시하였다. 셋째, 유형화를 통한 수요자들의 합리적인 선택자료 제시를 위해 화훼분야는 물론, 도시계획, 도시생태 분야까지 확장하여 관련 이론을 고찰하였으며, 유형화 요소 41개를 추출하였고 군집화 과정을 통해 4개의 핵심 유형화 요소를 도출하였으며, 4개의 요소를 분류 준거로 전문가 FGI에서 의견과 검증의 과정을 거쳐 중분류 9개, 소분류 30개 유형을 도출하여 제시하였다. 향후 연구과제로는 유형 적용과정에서 모니터링을 통해 유효한 유형의 추가 설정과 2단계 분류 위계를 3단계 위계로 확장하여, 보다 세분화된 적용 유형의 개발과 정리를 한다면 유형의 체계를 보다 발전시키는 좋은 연구가 될 것으로 보인다.

• Smart Structures and Systems
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• 제11권1호
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• pp.87-102
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• 2013

Vibration-based damage detection methods are popular for structural health monitoring. However, they can only detect fairly large damages. Usually impact pulse, ambient vibrations and sine-wave forces are applied as the excitations. In this paper, we propose the method to use the chaotic excitation to vibrate structures. The attractors built from the output responses are used for the minor damage detection. After the damage is detected, it is further quantified using the Kalman Filter. Simulations are conducted. A 5-story building is subjected to chaotic excitation. The structural responses and related attractors are analyzed. The results show that the attractor distances increase monotonously with the increase of the damage degree. Therefore, damages, including minor damages, can be effectively detected using the proposed approach. With the Kalman Filter, damage which has the stiffness decrease of about 5% or lower can be quantified. The proposed approach will be helpful for detecting and evaluating minor damages at the early stage.