• Journal of the Korean Geographical Society
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• v.51 no.5
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• pp.691-711
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• 2016

Recently, Economic spaces around the world have changed dynamically. Creative arts and cultural actors have begun to emerge in old industrial neighborhoods of major metropolitan cities. These new actors can be seen as creative actors in arts and culture, as well as non-economic actors that have been somewhat overlooked in the traditional approaches of economic geography. They contribute to overcoming regional economic crisis, as these actors bring a particular deviant and creative atmosphere in the neighborhood. Especially, informal gatherings of artistic communities play a pivotal role in knowledge platforms for dynamics of knowledge creation and creativity, which has a significant effect on shaping a creative milieu in the initial stage of formation of a regional ecosystem. In this regard, this paper will investigate the fundamental mechanisms and driving forces of urban spatial restructuring through a case study of the creative arts and cultural ecosystem in Seongsu-dong, Seoul, Korea. Thus, the main purpose of this study is to identify the formation process and key drivers behind the development of the early arts and cultural ecosystem in Seongsu-dong from an evolutionary perspective.

• Defense and Technology
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• no.3 s.229
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• pp.42-53
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• 1998

가상시험장은 양질의 시험 서비스를 보다 적은 비용으로 신속하게 제공하면서 실제 시험시에 발생할 수 있는 새로운 시험공간의 확보, 안전문제, 오염방지, 민원등에 효과적으로 대처할 수 있는 기술로 판단된다. 가상시험장의 효용가치는 가상시험 결과와 실제시험 결과의 근접성에 의해 결정되므로 모델링과 시뮬레이션 기술 개발과 더불어 Ground Truth Data의 축적이 선행되어야 성공적인 가상시험장 구축을 기대할 수 있다.

• Tunnel and Underground Space
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• v.20 no.3
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• pp.131-144
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• 2010

The design and construction of tunnels has been followed an large parallel tunnels with a small clearance because of the various conditions. Rock pillar between each single tunnel is supposed to be under heavy load by rock mass. The stability of pillar is very important for the ensure the stability of the large parallel tunnels. In this study, the analysis of stress state of pillar at various construction cases is reviewed to investigate the mechanical behaviour of tunnels and stability of the pillar.

• Journal of Korea Port Economic Association
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• v.27 no.2
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• pp.59-84
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• 2011

The purpose of this study is to analyze the spatial distribution and the linkage characteristics of the warehousing industry in Busan and to provide the policy implications for the warehousing industry in Korean port hinterland. We surveyed the warehousing firms in Busan. Categorizing the warehousing industry into industry types, sizes, and organization types on the basis of the survey, we attempted the point pattern analysis and the proximity analysis using the GIS. The warehousing industry in Busan had changed from a small single-unit firm to a medium or a large firm with a head office or branches. These were distributed in hinterland of North Harbor, South Harbor & Gamcheon Harbor, and Sin-Pyoung & Jang-Rim industrial complex and Sasang Industrial Complex constituting the spatial agglomeration. The warehousing industry in Busan formed the linkages with other sectors of the same logistics to provide manufacturing industries with various other services as well as storage services. The linkages were largely formed in the local scope with spatial proximity, generating the economic gains of agglomeration, which were transformed into the efficiency of the warehousing industry in the local scope to gradually expand the spatial dimensions of the linkages.

• Journal of Korean Tunnelling and Underground Space Association
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• v.9 no.4
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• pp.387-401
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• 2007

Recently, because of the restriction of land for construction and interference of adjacent structure, parallel tunnels with small clearance have been planned and constructed in many sites. In this case, the stability of pillar at center part is very important factor to satisfy the stability of tunnel structure under the construction. In this paper, numerical analyses for the asymmetry parallel tunnels with a narrow width of pillar have been carried out to search for the optimum reinforcement measure for rock pillar and verify the stability of tunnel. Rock pillar between each single tunnel is supposed to be under heavy load by rock mass. The analysis of stress state at rock pillar at various cases for construction conditions is required to investigate the structural behaviour of tunnels and stability of the pillar. Strength-stress ratio is calculated based on the failure theory of rock and the safety factor of tunnel is computed with strength reduction technique. Through these numerical results, reasonable reinforcement measures for rock pillar at parallel tunnel were established and recommended.

• Proceedings of the Korean Information Science Society Conference
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• 2003.10b
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• pp.118-120
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• 2003

이동체 데이터베이스에서 이동체 궤적의 양은 엄청나게 많아서 기존의 단일 디스크 기반에서는 특정영역의 질의에 대한 빠른 응답과 처리율의 향상을 볼수 없다. 따라서 고성능 질의 처리를 위한 시스템의 성능 향상을 위해서는 병렬 처리 기법의 도입이 필요하다. 이런 병렬 처리 기법 중, 기존의 디클러스터링 방법에서는 시간이 지남에 따라 연속적으로 보고되는 이동체 특성을 고려하지 않고 있다. 그러므로 대용량 이동체 데이터에 대하여 고성능 질의 처리를 위한 새로운 디클러스터링 방법이 필요하다. 이 논문에서는 대용량 이동체 데이터베이스에 대한 고성능 질의 처리를 위한 새로운 디클러스터링 정책을 제시하였다. 이동체 데이터의 MBB중 공간 좌표의 근접성만을 고려하여 하나의 SemiAllocation Disk 값을 설정하고 그 값과 시간 도메인을 다시 고려하여 근접성을 계산함으로써 디클러스터링을 할 수 있다. 또한 디스크별 Load Balancing을 고려하여 보다 정확한 디클러스터링 효과를 가지도록 하였다. 이와 같이 이동체의 특성을 고려한 새로운 디클러스터링 정책으로 시스템의 성능을 향상 시킬 수 있다.

• Journal of the Economic Geographical Society of Korea
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• v.8 no.1
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• pp.107-130
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• 2005

The purpose of this study were to examine the spatial distribution and locational characteristics of the Internet movie industry, to seize the value chains of the Internet movie industry and distribution structure of the internet movies, and to analyze the vertical-horizontal linkages of the Internet movie firms and their spatial clustering. Recently, the Internet movie industry has developed rapidly due to the development of techniques related to movie contents, the broadband Internet and a wide expansion of the high speed communication network and the increase of demands on movie contents. It has been found that 74$\%$ of the Internet movie industry was concentrated in Seoul. Especially this industry was quite agglomerated in several dongs of Gangnam-gu such as Yoeksam, Nonhyeon, Daechi and Samseung. The proximity of the same or similar business firms was the primary locational factors that influenced on the Internet movie industry, followed by other factors such as convenience of transportation, the reputation of the place, and proximity of technically supporting firms. The Internet movie industry had the valve chain composed of 'contents suppliers $\rightarrow$ contents distributors $\rightarrow$ service providers', However, there were also a complex network of the VOD copyright owner, VOD syndicator, and service providers in each category of the value chain. This research clearly revealed that the localized clustering has been formed with the movie contents providers, technically supporting firms, client firms, and cooperative-affiliated business firms related to the Internet movie industry, Additionally, a very intimate network has been established within the clustering, inducing the enlargement of the market and decrease of costs, the co-sharing of tacit knowledge, and the synergy effect.

• Journal of the Economic Geographical Society of Korea
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• v.15 no.2
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• pp.274-291
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• 2012

Since the advent of the internet as representative of the development of information communication technology (ICT), information transfer forms have changed rapidly these days. In the new techno-economic paradigms, I would ultimately consider how spatial structures of a knowledge-based service industry have been altered dynamically. To delve into this background, this study conducts an empirical case study of the internet advertising industry, particularly, among the whole advertising industry. Therefore, the primary objective of this study is to identify dynamic characteristics of spatial networks among actors for knowledge creation in Korea's internet advertising industry. In addition, it also is to analyze the formative elements of spatial networks which would have an influence on constructing the space of new economic activities. There are multilateral approaches. This research is classified into types of actors such as inter-firm, intra-firm, and firm-customer, and categorized according to spatial ranges such as local, regional, global levels. In the meanwhile, formative factors of the spatial networks could draw a conclusion from two aspects: inter-firm networks in the process of business in the internet advertising industry, and individual networks in the nonoccupational aspect. Accordingly, the results of this study suggest that actors' networks of two perspectives would make mutually complementary relationships and create new relational spaces in the digital economy.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.11
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• pp.3373-3383
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• 2009

The aim of the current study is to look at the mediating effects of structural features (i.e. decentralization, formalization, and specialization) on the relationship between product variety and the performance of product family. This study investigates the impact of decentralization and formalization for platform and derivative projects separately and in the context of the performance of the product family as a whole, as opposed to individual projects. In addition to relationships between people and groups, the current study considers physical element of an organization such as geographical location in which business tasks are conducted. The current study focuses on spatial differentiation which refers to the number of different sites or locations operated by an organization. Based on a cross-industry sample of 103 Korean manufacturers, this study examines the role of organizational structure features in which firms successfully increase product variety. The study examines that formalization in platform projects and decentralization in derivative projects enhance high variety firms' product family performance. The study finds significant mediating effect of spatial proximity on the relationship between product variety and product family performance.

• Asia Marketing Journal
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• v.5 no.3
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• pp.35-59
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• 2003

본 연구는 동일 제품범주 내에서 상호 대체가능성(substitutability)을 중심으로 연구 되어 왔던 상표간의 사용상황 대체(substitution-in-use) 이론을 산업간 경쟁의 차원으로 확대하여 적용할 수 있는 가능성을 탐색하는데 그 목적이 있다. 이를 위해 소비자의 소비경험이 선택기준의 중요한 요소로 작용하는 서비스부문을 대상으로 소비자의 선택동기, 즉 소비동기의 차원에서 산업간 경쟁구조와 경쟁강도를 분석하고자 하였다. 연구의 범위는 마케팅 분야에서 비교적 소외되어 왔던 엔터테인먼트 부문, 특히 문화예술부문과 스포츠부문에 초점을 맞추었다. 연구방법으로는 이들간의 심리적 거리를 측정하여, 그 근접성의 정도에 따라 산업간 경쟁구조와 경쟁특성을 분석하였다. 분석도구는 그 동안 마케팅의 영역에서 특정 산업 내에의 상표간 경쟁구조를 연구하는데 이용되었던 심리적 거리측정도구를 이용하였다. 이에 따라 구매자의 사용목적에 따른 상표간 대체 가능성을 산업간의 심리적 근접성을 이용해 측정하고 그 거리의 크기에 따라 경쟁강도의 선택의 대체성을 분석하였다. 방법론적 측면에서는 먼저 엔터테인먼트산업, 문화예술과 공연예술산업, 그리고 스포츠 등의 소비동기 유형을 살펴본 후, 이들 중에서 중복가능성이 있는 동기유형을 선별하였다. 이에 따라 다양한 관람 엔터테인먼트산업에서 나타나고 있는 12개의 소비동기 유 형을 발견할 수 있었다. 이후 이렇게 추출된 동기유형을 대상으로 산업간 대체성을 심적 거리좌표를 이용하여 측정하고 측정된 자료를 다차원척도법(MDS)을 이용해 2차원의 공간 상에 투사하였다. 그리고 상호간의 근접성과 경쟁구조를 확인하고 분석결과에 대해 논의 하였다. 분석결과 엔터테인먼트 상품들간에는 근접성의 차원에서 서로 대체될 수 있음을 발견할 수 있었고 이는 이들이 동일한 시장을 대상으로 경쟁관계가 있음을 시사하는 것이다. 개별 관람동기 차원의 분석 결과, 관람 엔터테인먼트 소비자들은 동일한 관람동기를 서로 다른 많은 유형의 엔터테인먼트산업이나 공연예술, 문화예술상품, 쇼나 오락, 관람스포츠 등에 의해 해결하고 있음을 발견할 수 있었다. 본 연구에서 사용한 접근방법과 연구의 결과는 향후 간접적 관계에서 직접적 관계로 경쟁이 확대되는 많은 마케팅분야에 적용될 수 있을 것이다.