• International Area Studies Review
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• v.15 no.3
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• pp.215-237
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• 2011

The paper is basically designed to reveal substitutability or complementary nature of export and import among Korea, China, and Japan by employing unit root test, cointegration technique, and vector error correction model(VECM). Empirical evidences are shown that the trading among these countries has been dominated by a complementary nature in the short run which enables it to promote trading in those countries. In the long run, however, the substitutability nature effects strongly to the trading among Korea, China, and Japan. To this end, it could be tentatively concluded that market-oriented trading policies are more effective to stimulate the export and import in those countries in the short run, while a trading policy has to be selectively implemented by the substitutability nature in the long run basis. For instance, a stability policy for exchange rates and various commercial policies could be set for a short term target. Whereas, the substitutability nature should be counted in building up a new industrial structure or in implementing FTA agreement among Korea, China, and Japan.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2010.11a
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• pp.117-118
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• 2010

MIMO(multi-input multi output) 기법은 여러 개의 안테나를 이용하여 채널의 다이버시티를 증가시켜 주파수 대역폭의 확장 없이 채널 용량을 증가시키는 기법이다. 그러나 MIMO 기법은 수신단의 복잡도가 높으며, 심볼간의 간섭 및 다중 경로 채널에 취약하다. 이런 MIMO 기법의 단점을 상호 보완 부호를 적용하여 극복함으로써 수신 SNR 성능을 향상시키는 방법을 제안한다. 상호 보완 부호를 MIMO 기법에 적용하면, 수신단에서 상관관계를 이용하여 심볼 간의 간섭을 완벽하게 제거할 수 있으며 다중 경로 채널에서도 강인한 장점이 있다. 제안된 알고리듬은 각각 컴퓨터 시뮬레이션으로 검증하였다.

• Proceedings of the Korea Multimedia Society Conference
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• 2001.11a
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• pp.265-270
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• 2001

XML은 강력한 데이터 표현능력들 인정받아 전자상거래와 같은 데이터 처리 분야에 적극적으로 도입되고 있다. 전자상거래는 인터넷의 확산과 더불어 급속도로 발전되었고. B2C의 성공은 기업간 전자상거래를 위한 비즈니스 모델들을 창출하였다. 이 비즈니스 모델들은 새로운 문서 기술 언어인 XML로 작성되고, 그 정보들은 각각의 기업의 데이터베이스에 저장된다. 저장에 필요한 데이터베이스로서 관계형 데이터베이스가 가장 일반적으로 사용되고 있으나, 관계형 데이터베이스의 단점을 보완한 객체지향형 데이터베이스가 개발되었고, 관계형 데이터베이스와 객체지향형 데이터베이스의 장점을 살린 혼합형이라 할 수 있는 객체 관계 데이터베이스가 개발되었다. 본 논문에서는 XML 문서의 저장에 관계형 데이터베이스와 객체 관계 데이터베이스를 사용하여 저장의 효율성을 비교한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2015.01a
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• pp.101-104
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• 2015

지역사회에서 복지 서비스의 제공은 다양한 서비스 공급주체들에 의해 수행되어진다. 그러나 서비스 전달과정에서 각 구성체들은 서로 배타적이며, 경쟁적 관계에 있는 것이 아니라 상호보완적 관계를 형성하여야 한다. 이러한 상호보완적 관계의 형성은 다양한 방법을 이용할 수 있겠으나 서비스 및 정보의 중복성 및 다양성의 확보를 위한 가장 최적의 방법은 정보통신 시스템을 이용하는 방법이다. 하지만 현재 상황은 복지 서비스를 위한 정보통합시스템의 부재로 각종 문제가 발생하고 있다. 본 논문에서는 이러한 문제를 해결하기 위한 복지 거버넌스 정보통합시스템을 제안하다.

• Journal of Digital Convergence
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• v.18 no.3
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• pp.123-131
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• 2020

The purpose of this study was to investigate the effect of task conflict on relationship conflict and the effect of relationship conflict on team satisfaction and to examine the moderating role of trust in peers in the relationship between task conflict and relationship conflict and the moderating role of team orientation in the relationship between relationship conflict and team satisfaction. The major findings were as follows: First, it was found that task conflict had a positive effect on relationship conflict and relationship conflict had a negative effect on team satisfaction. Second, it was found that trust in peers moderated the relationship between task conflict and relationship conflict. Third, it was also found that team orientation moderated the relationship between relationship conflict and team satisfaction. Based on the findings, practical implications and suggestions for future studies were provided.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.37 no.2
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• pp.303-310
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• 2017

Evapotranspiration is a significant hydrologic quantity for understanding the amount of available water resource evaluation, water balance analysis, water circulation and energy circulation. Various methods have been developed for estimating the evapotranspiration using data observed at meteorological observatories. Especially, the focus of methods has been on the complementary relationship that the actual evapotranspiration is equal to the difference between the twice of evapotranspiration in the wet condition and the potential evapotranspiration. The Granger and Gary (GG) method is an empirical formula that can be used to estimate the evapotranspiration using only empirical parameters based on the complementary relationship and using only the net radiation and temperature of the region. In this study, we compared the evapotranspiration data observed at 10 sites in Asia within the dataset of FLUXNET2015, with the evapotranspiration calculated by GG method. The evapotranspiration in inland area was estimated more accurately than that of coastal area. Simulated Annealing (SA) was used for the coastal area to modify the parameters. Using the modified GG method, we could improve the statistics such as root mean square error, the coefficient of determination ($R^2$), and the mean absolute ${\mid}BIAS{\mid}$ of the evapotranspiration estimation in coastal area.

• Journal of Korea Technology Innovation Society
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• v.19 no.3
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• pp.634-657
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• 2016

This study analyzes relationship between utilizing patents and trade secrets of firms empirically by using Koran Innovation Survey data. A number of prior theoretical studies have been discussed by assuming the patents and trade secrets used as alternative mutual relations. However, the use of patents and trade secrets can be used as a complementary and alternative methods generally based on a variety of firm and innovation characteristics. In this study, after controlling for nature of businesses, industry and innovation, the relationships between patent and trade secrets were analyzed by using 2005, 2008, 2010, 2012 and 2014 cross-sectional data. Prior to 2010, the relationship of patents and trade secrets was used as a complementary, while the result of 2014 showed that patents and trade secrets were utilized by firms independently. However, because we couldn't completely rule out the possibility that this result is caused by the difference between surveys, we performed a additional analysis. In conclusion, the independent relationship between patents and trade secrets may be caused by the increased number of patent applications and preference for the patent by firms since 2010.

• Cross-Cultural Studies
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• v.52
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• pp.111-132
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• 2018

The way of approaching 'the relationship between love and justice' varies from person to person. We can argue for superiority of love or for superiority of justice by understanding the relationship between the two as conflicting. We can also argue that we need each other by understanding each other as a complementary relationship rather than an oppositional relationship. Hegel, however, sees love and justice as independent constitutive principles valid in different areas and does not regard the two as opposing nor complementary. This can only be understood when the structure of Hegel's theory of recognition is properly assumed. The relationship between love and justice will be considered mainly in Hegel's theory of recognition. Key philosophical points of Hegel's theory of recognition and consequences drawn on the relationship between love and justice on the basis of the theory will be examined. This can be summarized in the form of a thesis, roughly as follows. - Hegel presents love, justice and solidarity, that are various forms of recognition, to a family, a civil society and a state, that are three forms of social relations, as their constitutive principles. He does not grasp the relationship between love and justice as oppositional nor as complementary, that is different from many people's general perspective on the relationship of the two. - In Hegel's theory of recognition, love and justice differ in the areas in which they are valid. Love is a valid principle in the intimacy, and justice is a valid principle in non-intimacy. So, if justice and rights are asserted in intimacy, the area of intimacy is destroyed. Conversely, if love is asserted in non-intimacy, it cannot exercise real influence. - In the political community such as a state, where intimacy and non-intimacy overlap each other, the principle of solidarity is needed as a new constitutive principle, since a state does not stand on the principle of love as in a family nor on the principle of justice as in a civil society.

• Proceedings of the Korea Multimedia Society Conference
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• 2002.11b
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• pp.351-354
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• 2002

데이터로서 XML의 의미가 중요해짐에 따라 XML 문서를 저장하는 방법들에 대한 연구가 활발히 진행되고 있다. 그 중 하나가 스키마를 이용하여 XML 문서를 관계형 데이터베이스에 저장하는 것으로서, 지금까지 DTD를 중심으로 연구가 이루어져 왔으나, XML 스키마의 등장으로 DTD의 단점을 보완하고, 기존 관계형 데이터베이스와 보다 유사하게 표현 할 수 있게 되었다. 본 논문에서는 XML 스키마에서 관계형 스키마를 추출하는 기법을 제시한다. 제시된 기법은 DTD에서 관계형 스키마를 추출하는 기법을 기반으로 하여, DTD에서 표현할 수 없는 사용자 정의 데이터형을 추가로 제공하는 등, XML 스키마의 속성과 요소에 따른 여러 특성을 표현할 수 있다.

• Proceedings of the Korea Multimedia Society Conference
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• 2003.11a
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• pp.392-395
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• 2003

XML은 W3C에서 제안된 웹 상에서 데이터를 표현하고 교환하는 표준이다. XML 문서를 관계형 데이터베이스나 객체지향 데이터베이스에 바로 저장하기에는 적합하지 못하기 때문에, XML문서에서 DTD를 이용하여 관계형 데이터베이스 스키마를 추출하고, 저장하는 방법에 대한 연구가 활발히 진행되고 있다. 그러나 DTD는 타입이 제한되어있고, 확장의 어려움이 있기 때문에 XML 스키마를 이용하여 DTD의 단점을 보완하고, 관계형 데이터 베이스 스키마를 추출하여 저장할 수 있게 되었다. 본 논문에서는 XML 스키마를 관계형 스키마로 변환하는 기법을 제안하고 구현 결과를 보인다. 제안된 방법은 XML 스키마를 이용하므로, 타입의 확장성 및 유연성 등을 제공할 수 있다.