• Journal of the Economic Geographical Society of Korea
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• v.25 no.4
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• pp.499-513
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• 2022

This study targets the rechargeable battery industry, which has been rapidly growing recently. The rechargeable battery industry is closely related to the electric vehicle industry. However, other factors also influence it. Currently, rechargeable battery companies show a pattern of restructuring production space by various means. To determine the causes of these production spaces, the factors affecting regional and national scales were thoroughly examined. As a result, the location factors for rechargeable battery-related companies are determined by cooperative relationships with assembled car companies, government policy regulations, and the stability of supply of key materials. And a spatial strategy was implemented to make the most of these circumstances.

• Annual Conference of KIPS
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• 2011.04a
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• pp.1278-1280
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• 2011

인터넷 쇼핑몰을 통하여 사용자들은 다양한 상품의 구입과 유통정보시스템의 구축으로 복합적이고, 차별화된 전략을 통해 소비패턴의 큰 변화를 가져왔다. 이러한 추세는 대형마트를 중심으로 확산되었고, 대형마트를 선호하고 구매력을 향상시키는 요인이 되었으며, 경제성장과 소득수준의 향상으로 사용자들의 욕구 또한 고급화되고 다양화되는데 큰 영향을 끼치고 있다. 이로 인하여 인터넷에서 처리되는 정보의 종류가 점차 확대되고 다양화되면서 정보를 처리하기 위한 구현기법도 복잡해지고 있으며, 웹사이트들은 단순히 정보제공 차원을 넘어서고 있다. 이에 따라 사용자들은 동적인 정보제공, 보안기능, 통계처리들의 기능도 요구하고 있다. 이러한 요구를 수용하기 위해서는 웹 자원을 효율적으로 관리하기 위한 시스템이 필요하다. 이러한 이유로 현재 대형마트별로 홈페이지가 구축되어 있어 사용자들이 원하는 생필품을 검색할 수 있으나, 어느 특정지역을 대상으로 통합하여 검색할 수 있는 시스템은 없는 상황이다. 본 논문에서는 D 지역의 대형마트를 선정하여 사용자들이 주로 이용하는 생필품들의 가격을 조사하여 상품에 대한 가격을 웹상에서 보다 쉽게 비교하여 검색할 수 있도록 MPP(Mart Products Price) 통합 검색 시스템을 구현하였다.

• Proceedings of the Korea Water Resources Association Conference
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• 2021.06a
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• pp.121-121
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• 2021

기후변화의 영향으로 국내의 강우량과 강우패턴의 변화가 나타나고 있다. 최근 30년 여름철 집중호우의 평균강수량은 1980년 694.5 mm에서 2000년대 768.7 mm로 평균강수량이 74.2 mm 증가하였다. 평균강수일수는 36일에서 40일로 약 4일 증가하였다. 집중호우의 증가로 국소적 홍수에 의한 재해규모가 증가하고 있는 실정이다. 토양침식은 물의 순환과정에서 있어 나타나는 하나의 현상으로 토양손실을 의미한다. 강우량과 지형 및 토양특성이 토양침식량을 결정하는 주요한 요인이다. 토양침식은 농경지 감소, 고탁수 하천유입, 하천 및 호소내 퇴적으로 인한 수생태환경 변화 등의 다양한 문제를 발생시키고 있다. 그동안 우리나라는 토양침식량을 예측하기 위해 연평균 토양침식예측모형을 적용하고 있으며, 최근에 강우강도를 고려한 토양침식모형에 관한 연구가 진행되고 있다. 본 연구는 동일한 강우량을 Huff 방법을 이용하여 24시간 강수량 자료를 만들고 물리적기반 토양침식모형에 적용하여 나타나는 토양침식과 퇴적 공간분포에 대하여 분석하고자 한다.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.19 no.2
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• pp.23-43
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• 2008

Knowledge resources are classified with two groups, the records produced by internal parts of company and general information materials from external organizations. Production, acquisition, storage, retrieval and utilization patterns of two groups became similar due to digitization of knowledge resources. And separated RM and IM should be changed integrated management concept. This paper compares RM and IM based on KM governance strategy and several methods to integrate RM and IM. Especially the selection and identification of knowledge resources, information systems to be integrated and the methods of integration and integrators of public enterprises are presented.

• Information Systems Review
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• v.24 no.4
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• pp.1-22
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• 2022

The transition to a non-face-to-face consumer society has rapidly occurred since Covid-19. The need for a subdivided urban logistics policy centered on courier delivery, a life-friendly last-mile logistics service, has been raised. This study proposes a SNS-based method that can analyze the demand relationship by region and product, respectively. We extend the market basket network (MBN) and co-purchased product network (CPN), find product category patterns, and confirm regional differences by using delivery order data. Our results imply that SNA analysis can be effectively applied to inventory distribution or product (SKU) selection strategies in urban logistics.

• Information Systems Review
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• v.12 no.1
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• pp.189-207
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• 2010

We applied IT ecosystem analysis to Smart Grid system in this paper and thereby compared various arguments about Smart Grid technologies against the reality of the power generation and distribution in South Korea with a special attention to the power distribution side. Our work attempts to propose policy implications in the government-level based on a firm-level analysis using the framework of the competitive strategy and advantage. The Smart Grid initiative is expected to enhance the efficiency in the power generation and distribution. In addition, the Smart Grid initiative aims at capturing the opportunities in the electric power business such as parts, components, supplies, and system products in the global arena. Prerequisites of smart distribution system include building infrastructure based on smart distribution parts, information systems, communication technologies, and developing various application programs and interfaces that would interact with the consumers. Consumers are expected to play an integral role by changing their consumption patterns in response to dynamic pricing and quality choices enabled by the smart distribution technologies. In order to induce the consumers to participate actively in the program, firms and policy makers should consider providing consumers economic incentives and proper education for better understanding of new technologies. Our work helps policy makers and firm better understand the nature of technology and stakeholders for the successful implementation of smart distribution technologies.

• Journal of Internet Computing and Services
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• v.16 no.4
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• pp.1-11
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• 2015

This study uses the contingent valuation method to estimate the switching cost for adopting the MVNO service. The findings are as follows.: First, Willingness To Switch(WTS) increases as users' using pattern and perceived degree of MVNO service, but satisfaction with current service provider does not play a significant role in predicting Switching Cost. This means that as amount of money users can save exceeds a certain level, users decide to willingly change their service provider to MVNO regardless of their level of satisfaction with current service provider. Second, there are differences in WTS among service subscribers in SKT, KT and LGU+. It means that there will be a difference in the tendency to switch to MVNO among subscribers of service providers. This study suggest the following mangerial perspective to effectively promote the MVNO and boost the MVNO market for activation of mobile data services.: First, MVNOs are better off applying differentiated pricing scheme at attractive rates than using a differentiation of service product and quality. Second, regulators should consider how to implement an MVNO regulatory policy when there is an asymmetric customer loyalty among MNOs. This research will be used to set the MVNO's pricing strategy and to build up a successful regulatory policies.

• Journal of Korea Technology Innovation Society
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• v.20 no.1
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• pp.175-204
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• 2017

The existing innovation policies and strategies mainly focused on the influencing factors for improvement of innovation outcome. However, these strategies were not always successful in driving innovative activities that make technology innovation disseminated. In this regard, innovation ecosystems approach has recently been coming to the force to establish a successful innovation strategy. The innovation ecosystems concept describes that innovation processes are evolved through collaborative networks of economic actors. In an innovation ecosystem, different organizations collaborate for technology development and its use. They interact for value co-creation by sharing mutual resources. The organizational networks are re-organized by dynamic changes of actors' interactions, which drive innovation mechanism of the networks. Recent studies on innovation ecosystems mostly have paid attention on developing theoretical frameworks to describe dynamics of an innovation ecosystem. There have hardly been empirical tests on the theoretical ecosystem models. In this vein, we investigated dynamics of an innovation ecosystem by analyzing structural characteristics of a collaborative network among organizations which are involved in the use of innovative technologies. Particularly, we examined the longitudinal changes of the interaction patterns among the organizations. This test was performed by an analysis of structural equivalence on the network dataset transformed from the organizational interactions. This result provides a guideline for an organization in developing an innovation strategy under a systemic perspective.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.17 no.1
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• pp.281-290
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• 2017

This study aims to determine how demographic characteristics and SNS use traits of audiences are different depending on preferred performance types such as pop music concert, musical; play, dancing and ballet. SNS use traits are as follows: duration of SNS use, average number of access to SNS account, average time of SNS use, SNS activity type, motivation for SNS use, preferable type of SNS, annual total number of performance watched, and method to gain performance information. Also, the study was conducted to get significant insights in designing marketing strategy using social network services. The results are as follows. First, the result of examining audience's demographic factors depending on preferred performance type showed meaningful differences in sex, age, marital status, form of family, academic level, job and monthly income of the audiences. Second, SNS use traits of the audiences according to preferred performance genres vary in duration of SNS use, average number of access to SNS account, average time of SNS use, SNS activity type, motivation for SNS use, method to gain performance information. These findings showed that demographic characteristics and SNS use traits needed to be classified more specifically based on genres. Additionally, marketing strategy using performance information, traits of contents and customers' patterns through SNS should be specifically developed based on specified target.

• Journal of Educational Research in Mathematics
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• v.16 no.4
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• pp.367-386
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• 2006

There are two strands for considering tile relationships between education and technology. One is the viewpoint of 'learning from computers' and the other is that of 'learning with computers'. In this paper, we call mathematics education with computers as 'computers and mathematics education' and this computer environments as microworlds. In this paper, we first suggest theoretical backgrounds ai constructionism, mathematization, and computer interaction. These theoretical backgrounds are related to students, school mathematics and computers, relatively As specific strategies to design a microworld, we consider a physical construction, fuctiionization, and internet interaction. Next we survey the different microworlds such as Logo and Dynamic Geometry System(DGS), and reform each microworlds for mathematical level-up of representation. First, we introduce the concept of action letters and its manipulation for representing turtle actions and recursive patterns in turtle microworld. Also we introduce another algebraic representation for representing DGS relation and consider educational moaning in dynamic geometry microworld. We design an integrating microworld between Logo and DGS. First, we design a same command system and we get together in a microworld. Second, these microworlds interact each other and collaborate to construct and manipulate new objects such as tiles and folding nets.