• Journal of Korea Water Resources Association
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• v.48 no.3
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• pp.209-220
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• 2015

In this study, the effects of changed environment on spatial extension of flood discharge data which is generating discharge data at ungauged watersheds. Especially, effects of dams on spatial extensions of flood discharge data and on natural flow generation were studied. This is somehow an intial trial of flood discharge data generation for heterogeneous watersheds because of dam installation. Data extensions have been performed based on the flood discharge data from YeoJoo water gauge station located on the Nam-Han River. For the evaluation of flood discharge data spatial extension under dam effects and producing natural flow, 41 flood events associated with YeoJoo water gauge station were selected from 1986 to 2010. When flood discharge data were extended based on YeoJoo water gauge station, 77% of selected flood events were over the satisfaction ranges (NSE>0.5) of Nash-Sutcliffe Efficiency for model validation. Extended flood discharge data at Yangpyung has 0.84 NSE obtained from spatial data extension based on YeoJoo water gauge station. Generated natural flow at YeoJoo was influenced strongly by Chungju Dam which has larger effects on streamflow at YeoJoo than Hoangsung Dam. Observed peak discharges after the 1986 of Chungju Dam installation were smaller than those of the obtained natural flow. Through these results, spatial extension of flood discharge data with installed dams works efficiently for ungauged watersheds and natural flow can be generated using extended flood discharge data.

• Journal of the Korean association of regional geographers
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• v.19 no.3
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• pp.436-445
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• 2013

This study, by focusing on the concept of accessibility to the central city, analyses its importance for understanding baward regions and aims to investigate a new spatial strategy for developing backward regions in Korea. The study investigates the EU accessibility case study and formulates the methodological framework for the analysis, which is applied to the case of Jeonnam-do and Gyeongbuk-do in order to evaluate the backwardness of the regions in terms of the accessibility to the central city. Finally, this paper discusses a new spatial strategy for developing backward regions based on the concept of the accessibility to the central city, which includes the creative expansion of rural public services and promoting efficient delivery system, improving public and private service provision through the accessibility to the central city and securing long-term development potential through investing in regional human capital.

• Proceedings of the Korea Multimedia Society Conference
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• 2000.04a
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• pp.43-62
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• 2000

• Magazine of korean Tunnelling and Underground Space Association
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• v.5 no.3
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• pp.87-100
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• 2003

• Magazine of korean Tunnelling and Underground Space Association
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• v.26 no.2
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• pp.34-56
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• 2024

• The Korean Journal of Applied Statistics
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• v.35 no.5
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• pp.657-666
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• 2022

An informative predictor subspace is useful to estimate the central subspace, when conditions required in usual suffcient dimension reduction methods fail. Recently, for multivariate regression, Ko and Yoo (2022) newly defined a projective-resampling informative predictor subspace, instead of the informative predictor subspace, by the adopting projective-resampling method (Li et al. 2008). The new space is contained in the informative predictor subspace but contains the central subspace. In this paper, a method directly to estimate the informative predictor subspace is proposed, and it is compapred with the method by Ko and Yoo (2022) through theoretical aspects and numerical studies. The numerical studies confirm that the Ko-Yoo method is better in the estimation of the central subspace than the proposed method and is more efficient in sense that the former has less variation in the estimation.

• Proceedings of the Korea Society of Design Studies Conference
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• 2001.05a
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• pp.10-11
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• 2001

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.23 no.2
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• pp.133-150
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• 2012

University libraries need to reborn as central space of the academic activities of university at the 21st century knowledge-based society. This study conducted case study on P University libraries and explored the directivity of spatial composition to actively respond to needs of customers. To do this study, we examined the related papers in and out of Korea, visited major academic libraries in Korea and compared the cases. And we did a survey targeting the customers of P university libraries. The result of survey confirmed that the needs of customers almost correspond to the directivity of spatial composition which we found at the cases for this study. The result of this study can be some references for Korean university libraries to improve their space and do user-oriented library marketing.

• Journal of the Society of Disaster Information
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• v.14 no.1
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• pp.51-58
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• 2018

The purpose of this study is to propose a method to construct the information space of library with the resilient space and community base to cope with social changes in response to various contents of library functions. As an institution that provides the places and contents necessary for education and research, it aims to expand and change from the collection center to the user center, from the specific user center to the library that shares resources with the community, And to find ways to contribute to the revitalization of education. A library plan for communities that can increase the value of local libraries and expand user-centered space utilization is as follows; First, in terms of communities in space and programs, the program will be supplemented through the activation of cultural, entertainment, and collaborative programs and the creation of communities. Second, in terms of smart support for operational and environmental issues, the establishment of information technology and smart management operating system to expand the research productivity by efficiently utilizing mutually available data with the local community.

• The Journal of the Korea Contents Association
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• v.6 no.8
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• pp.49-56
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• 2006

Urban cmmunity films have achieved the industrial modern society's idiosyncrasy Popular films have achieved the industrial growth through city as the completion of modernization. They also have represented the social meaning of urban space, and have expanded 'their political space' This filmic challenge showed diverse negative factors which were the poor's economical difficulties, the relative robbery of their education and job, and adhered class in city through developing the urban space with were hidden beyond modernity's splendor.