• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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• 2007.04a
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• pp.363-366
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• 2007

Road Design is being reached to the working design to produce drawings, calculate construction quantity and cost, through the basic design that contained feasibility study and all impact assessment. In general, to plan the route we use topographic map. The vertical positional accuracy is 30cm and horizontal positional accuracy is 35cm in 1:1,000 scale topographic map. In LiDAR, vertical positional accuracy is 15cm and horizontal positional accuracy is 30cm. So if we use LiDAR on road design, more accurate earth-volumn will be calculated when we plan the route. In this paper we try to find the method to use the LiDAR data on road design by drawing the profile and cross sectional view and comparing the earth-volumn to the road that working design is in process adopting the topographic map and LiDAR data.

• Proceedings of the Korea Water Resources Association Conference
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• 2004.05b
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• pp.458-462
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• 2004

This study is to trace the change of stream shape using the past series of aerial photographs and compare the land use changes of inland along the stream. For the Gyeong-an national stream, aerial photographs of 1966, 1981 and 2000 was selected and ortho photograph was made with RMSE of 1.05, 0.54, 0.72 pixels, respectively. As apparent changes of the stream, the consolidated reaches of stream with levee construction were straightened and their stream width widened. Especially the stream width of inlet part of Paldang lake was widened almost twice because of the rise of water level by dam construction in 1974.

• Journal of Korean Society of Rural Planning
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• v.20 no.2
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• pp.71-80
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• 2014

This study intended for Cheongryongsan Community Garden in Gwanak-gu, one of the demonstration places for 'Community Garden' Project recently implemented by the Seoul Government. This study had two major purposes: investigating the current status of the management and usage and identifying its characteristics; investigating users' awareness to consider the construction and operation directions of sustainable community gardens. This study was conducted based on several surveys such as an investigation into the spatial configuration and the management system of parks through a field study, a use survey through a questionnaire survey for vegetable garden users and an awareness survey about the construction direction of gardens direction preferred by users through the analytical hierarchy process (AHP). As a result of a questionnaire survey for vegetable garden users, the usage status was summarized as follows: Considering the common trends in the 2012 and the 2013 user survey, women used Cheongryongsan Vegetable Garden more than men. Over fifties used it most of all users. Users were mostly neighborhood residents. They used to visit there three to five times a week and stayed for about 30 minutes to one hour. Users differently responded to the question related to the order of priority for the use of the garden in the 2012 and the 2013 survey. They had increasingly used it for individuals' production activities more than social exchanges. As a result of making an AHP analysis for general park users, vegetable garden users there were clear differences in the targets which each subject put emphasis on in relation to the construction and operation of vegetable gardens. General park users recognized a vegetable garden as a park where park functions and the functions of the vegetable garden coexisted. On the other hand, vegetable garden users viewed it as a space where they attached importance to the functions of the vegetable garden like an allotment. Last, this study contemplated subjects related to the construction and operation of vegetable gardens which had to be considered in the future. Vegetable gardens tended to be biased as personal hobby places. It was viewed that the main reason was insufficient support activities for vegetable garden education and exchange programs originally planned when vegetable gardens had been constructed. Vegetable garden users recognized vegetable gardens as places for individuals' farming activities like allotments. For the desirable operation of vegetable gardens, it would be necessary to give priority to the park management before the production activities in individuals' vegetable gardens. The important role of the government would be to build the base through the provision of education and opportunities so that a local resident organization could actively participate in the management of a vegetable garden after a vegetable garden was constructed. It would be necessary to make a use survey and an awareness survey for users conducted in this study on a regular basis because the surveys could be important basic data in the decision-making process for the sustainable operations of the vegetable garden.

• Journal of the Korean Institute of Landscape Architecture International Edition
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• no.2
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• pp.14-24
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• 2004

This study focused on 15 parks to investigate the actual developmental conditions for preservation type parks and artificial type parks in the 9 residential land development sites managed by the Korea Land Corporation in Daegu and Gyeongsangbukdo area from 1994 to 2002. Emphasis is placed upon the types of land use, park arrangements, park facilities, types of planted trees and landscaping expense, with a view to discovering ways of improving the efficiency of future park development.

• Journal of the Architectural Institute of Korea Planning & Design
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• v.36 no.1
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• pp.113-124
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• 2020

The purpose of this study is to suggest an improvement for the CPTED(Crime Prevention Through Environmental Design) guidelines for the urban linear park. We analysed the Changjeon-dong section of Gyeongui Line Forest Park into 12 sub-areas and evaluated CPTED design applied on the park based on analysis framework derived from 15 precedent studies by conducting on-site observations. Both surveys and in-depth interviews on users of the park were conducted and the results of analysis on the evaluation from users and the on-site observation were compared. We found that the lighting condition and the height of wall and trees at the park boundaries are very important to insure natural surveillance since the adjacent areas are easy to be hidden from passers-by and subject to invasion and threat of crime while protecting the privacy of residents on the boundary. There should be improvement on management facilities and crime prevention facilities for more safe and convenient use of the linear park and the adjacent commercial use during nighttime also need to be managed for conflicts between various type of users.

• Journal of Information Technology Services
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• v.12 no.4
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• pp.1-23
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• 2013

This study examines whether key characteristics of cloud computing services would affect the intention of use for personalized cloud computing services. The research model was generated based on Technology Acceptance Model (TAM) with resistance variable, and verified statistically by undertaking a survey about the perception of personal users. As the results of this analysis, we could find the structural relationship among the factors affecting adoption of the cloud computing service. We found that the expectation of ubiquity as a representative function of the cloud computing service meaningfully affected the perceived ease of use and resistance, and that the relativeness with existing services also meaningfully affected the perceived ease of use, but not the resistance. In addition, the moderating effects of use experience in the path leading from the perceived ease of use and resistance to the intention of use were identified. This study will provide diverse implications for the companies providing personalized cloud computing services.

• KIPS Transactions on Computer and Communication Systems
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• v.6 no.1
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• pp.43-50
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• 2017

Use-After-Free security problem is rapidly growing in popularity, especially for attacking web browser, operating system kernel, local software. This security weakness is difficult to detect by conventional methods. And if local system or software has this security weakness, it cause internal security problem. In this paper, we study ways to remove this security weakness in software development by summarize the cause of the Use-After-Free security weakness and suggest ways to remove them.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2004.05a
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• pp.127-130
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• 2004

In order to verify the validity of the exhibition moethod in a science museum, this study undertakes a visitor follow-up survey, and clarifies the influence an exhibition method affect visitor's behavior, and its feature. The tracking research performed the visitor follow-up survey to family company children. The characteristic of the visitor's behavior by the exhibition method; Use frequency becomes low in order of 'Experience type' 'Participation type' 'Fixed type'. Experience type has tendencies, such as repetitive and continuing use, and use time was long. Otherwise use time of Fixed type was short. As a result, although the use frequency of Hands-on is high and its use time is longer than Hands-off, it turns out that is influenced according to factors, such as the exhibition method, presentation and the contents of exhibition.

• Korean Journal of Medicinal Crop Science
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• v.10 no.4
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• pp.303-313
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• 2002

• Journal of Family Resource Management and Policy Review
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• v.22 no.3
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• pp.1-19
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• 2018

This study was aimed at exploring gender differences in time use and time famine between single-parent families. Data were obtained from the time use surveys, that were conducted by the Korea National Statistical Office in 2014. A total of 500 time diaries (168 from fathers, 332 from mothers) from single-parents aged between 20 and 59 were analyzed. Descriptive statistics, chi-square test, and t-test were used for the statistical analyses. Results indicated that the single-parent families exhibit gender differences in time use and subjective time famine. The single-mothers spend a significantly longer amount of time on housework and less time on leisure than do the single-fathers. The single fathers and mothers also differ in time use and time famine according to employment status and working days on/off.