• 한국IT서비스학회:학술대회논문집
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• 2003.11a
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• pp.78-87
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• 2003

본 논문에서는 사례분석을 통하여 온-오프라인 하이브리드(hybrid) 비즈니스 모델의 성과와 상보성 효과(complementary effect)의 상관관계를 탐색하였다. 기존 선행 연구가 상보성 효과를 인식하는 수준인 반면 본 연구에서는 하이브리드 비즈니스 모델 별로 성과에 긍정적인 영향을 미치는 차별화 된 상보성 유형들을 파악하였다. 비즈니스 모델 유형은 Mahadevan(2000)의 가치 기준 분류인 시장 형성자, 포탈, 제품/서비스 공급자를 기준으로 하였으며 상보성 효과와의 상관관계 분석 결과 비즈니스 모델 별 상보성 효과의 차별화가 있음이 파악되었다. 본 연구의 특징은 인터넷 비즈니스 모델과 상보성의 특성 분석을 통하여 연구의 초점을 하이브리드 비즈니스 모델로 확대하였다는데 있으며 따라서 제시된 프레임웍은 오프라인 기업이 온라인 진출 시 효과적인 하이브리드 비즈니스 모델을 수립하는데 있어 유용한 시사점을 줄 수 있다.

• Journal of the Korean association of regional geographers
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• v.21 no.1
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• pp.21-38
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• 2015

This study attempts to estimate the complementarity between 21 cities in the Korean Southeastern Region using data on the network time distance and the volume of flow between the cities. Four types of flows recognized are people, commodities, information and finance. The first two types of flows are thought to be made on the transportation network while the last two are on the communication network. For the purpose of the study, the expected volumes of flows between cities are first estimated using the gravity-based regression and doubly-constrained entropy maximization models. These baseline volumes are then subtracted from the observed volumes of flows (of people and commodities) or the estimated volumes of flows (of information and finance) in order to identify positive differences or complementarities. The result shows that these four types of complementarity flows form distinctive urban networks in terms of spatial pattern and urban hierarchy. This suggests that more customized strategies to different types of complementarity are recommended to properly address the issues related to network infrastructure provision in the pursuit of the network city model in the region.

• Journal of Educational Research in Mathematics
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• v.17 no.4
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• pp.437-452
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• 2007

Complementarity, complementary principle and complementary approach have been often used in school mathematics but its meaning has not been obvious. Thus this paper tries to make explicit the meaning by looking around complementary characteristic of mathematical knowledge. First of all, we examines the general meaning of complementarity and Investigate complementary characteristics of mathematical concepts through incommensurability and zeno's paradox. From this, complementary approach to school mathematics is studied. To understand and uncover complementary characteristics of mathematical concepts make it possible for student to have an insight. It is the most important thing that students can have an image of mathematics as a living system rather than as a mechanical application of rules and fragmentary in formations.

• Korean Journal of Social Welfare
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• v.57 no.4
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• pp.91-118
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• 2005

This paper examines the impact of the institutional complementarity between welfare regimes and production regimes on income inequality. Using comparative welfare data by various sources for 14 OECD nations from 1980 to 1997, this paper attempts to answer two questions. First, is there a institutional complementary in regulatory process between distribution and production? Second, if it is correct, what kind of causal structure do we predict? Panel Corrected Standard Errors(PCSE) model, a data analysis method in pooled cross-sectional time-series, is employed to examine the interaction effects between the two variables: coordination in the sphere of distribution; coordination in the sphere of production The evidence suggest that there are powerful interaction effects between distributive coordination and production coordination and that the institutional complementary has effects on income inequality. First, the income inequality effect of coordination in the sphere of distribution becomes less positive(more negative) as coordination in the sphere of production increases. Second, the income inequality effect of coordination in the sphere of production becomes less positive(more negative) as coordination in the sphere of distribution increases.

• Korean Journal of Environment and Ecology
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• v.34 no.5
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• pp.436-445
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• 2020

The number of protected areas has been steadily increased in Korea to achieve Aichi Target 11, and there are studies on potential protected areas that required additional designation. However, there has been an insufficient assessment of the complementarity of protected areas to conserve biodiversity effectively. This study identified the potential habitat areas using the species distribution model for plant species from the 3rd National Ecosystem Survey and compared the plant species abundance in the existing protected area and the potential protected areas using the similarity indices, such as the Jaccard index, Sorenson index, and Bray-Curtis index. As a result, we found that the complementarity of the existing protected areas and most potential protected areas were low, leading to the preservation of similar plant species. Only the buffer zone for Korea National Arboretum had high complementarity and thus is important to conserve some species with the other protected areas. This study confirmed that it was necessary to select additional protected areas outside the existing or potential protected areas to protect plant species with a low inclusion ratio of potential habitats within the protected area. This study is significant because it identified the ecological representativeness of each protected area to examine if the individual protected area can conserve unique and various species and proposed a method of finding candidate areas for additional conservation spatially. The findings of this study can be a valuable reference for the qualitative improvement of protected areas through the complementarity assessments, including animals and the effectiveness assessment study of protected areas using the National Ecosystem Survey data in the future.

• KIPS Transactions on Software and Data Engineering
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• v.2 no.12
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• pp.899-902
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• 2013

In this paper, we present a method to visualize the contact region between two molecules in a protein complex in a threedimensional space. The contact region of two molecules shows compatibility in geometric aspects. Usually, the computation of the area of contact region has been used to show the strength of compatibility. The numerical value and simple drawing of contact region would be useful for comparing the relative strength of different contacts, but it is not appropriate for analysing the geometric characteristics of the contact region. In this paper, we present a method to show the compatibility between two molecules by visualizing the distance information between them.

• The Science & Technology
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• v.16 no.10 s.173
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• pp.53-59
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• 1983

• Proceedings of the KSME Conference
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• 2001.06a
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• pp.674-679
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• 2001

For a large deformation nonlinear dynamic analysis of two-dimensional frictional contact, the linear complementarity formulation combined with a linearization is used. The solution procedure is based on the total Lagrangian formulation with a predictor and corrector scheme. For contact searching, a hierarchical scheme with a circular territory is used. A second-order approximation of displacements is used to detect impact time and position. The formulation is illustrated by means of numerical examples.

• Proceedings of the Zoological Society Korea Conference
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• 1995.10b
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• pp.314.1-314
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• 1995

• Korean Journal of Social Welfare
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• v.59 no.4
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• pp.297-317
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• 2007

In this article, I want to demonstrate wage equality increases support for welfare expenditures while the wage equality depends on how labour market institutions are organized. In other words, this study tries to show that there can be institutional complementarity between inequality-reducing labour market institutions and generous social policy. In the first section, I develop a theoretical models which deal(1) how the inequality of income affects the political support for welfare expenditure(2) how the configurations of labour market institutions affect income inequality in the labour market. In the following section, this study tests the models with data on welfare spending, configurations of labour market institutions, and the inequality of wage and salaries in 14 welfare states from 1980 to 1995. Empirical analysis also provides support for key implications of the models. These models and empirical findings may show that the institutional complementarity stems from the interdependence of institutional influences on actors' decision-making. Moreover, this study suggests welfare policy are always considered with labour market institutions.