• The Korean Journal of Financial Management
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• 제20권2호
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• pp.95-126
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• 2003

This paper introduces multifractal processes and presents the empirical investigation of the multifractal asset pricing. The multifractal stock price process contains long-tails which focus on Levy-Stable distributions. The process also contains long-dependence, which is the characteristic feature of fractional Brownian motion. Multifractality introduces a new source of heterogeneity through time-varying local reqularity in the price path. This paper investigates multifractality in stock prices. After finding evidence of multifractal scaling, the multifractal spectrum is estimated via the Legendre transform. The distinguishing feature of the multifractal process is multiscaling of the return distribution's moments under time-resealing. More intensive study is required of estimation techniques and inference procedures.

• Journal of the Korea Concrete Institute
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• 제13권1호
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• pp.38-45
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• 2001

Numerical studies were carried out to develop the moment magnifier method for long-term behavior of flat plates, subjected to combined in-plane compressive and transverse loads. Nonlinear finite element analyses were performed for the numerical studies. Through the numerical studies, the long term behavior of the flat plate subjected to uniform or nonuniform floor load was investigated, and creep effects on the degradation of strength and stiffness of the slabs were examined. As a result, the creep factor was implemented to describe the creep effect on the flat plate. The moment magnifier method using the creep factor was developed for long-term behavior of flat plates. Also, the design examples were shown for the verification of the proposed design method.

• Journal of The Geomorphological Association of Korea
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• 제20권1호
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• pp.75-83
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• 2013

Human-induced modifications in coastal area may cause strong geomorphic responses by disturbing sediment supply, transport and deposition regimes. Morever, engineering structure have been built to stabilize coastal change, these effort impact on other morphologic change. In case of coastal area, there are lack of sediment yield data. This study focus on the tendency of long-term shoreline change, estimate method od sediment discharge which is a major factor of coastal change and adduced to way for considering design load influenced to coastal road.

• The Korean Journal of Archival Studies
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• 제14호
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• pp.191-240
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• 2006

For long-term preservation of electronic records, the information on the whole processes of management from the time of creation of the electronic information should be captured and managed together. Such information is supported by preservation metadata thus the implementation of preservation metadata is important for preservation of electronic records maintaining the record-ness. Preservation metadata is the information that supports the process of digital preservation and functions th maintain long-term viability, renderability, understandability, authenticity and identity of digital resources. Preservation metadata should be developed applying the international standard Reference Model for an Open Archival Information System(OAIS) to have international interoperability for exchange and reuse. Initial international preservation metadata schemas were developed standardizing the OAIS Reference Model. But the preservation metadata schema of Victorian Electronic Records Strategy(VERS) and recently published Data Dictionary of PREMIS Working Group were developed in advanced types that are different from the existing framework. Those were advanced th practical ones from conceptual one. Comparing these two cases, proposed the elements of integral preservation metadata for long-term preservation of electronic records. This thesis has the significance that it has suggested the direction for future development of the elements of preservation metadata by setting the past discussions related to preservation metadata in order and proposing integral preservation metadata elements for long-term preservation of electronic records.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 한국감성과학회 2008년도 추계학술대회
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• pp.13-16
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• 2008

주택문화관은 소비자와의 접점으로 주택상품을 전시하고 판매하는 실질적인 공간이다. 따라서 주택문화관은 다양한 디자인을 통한 경험을 제공하고, 소비로 이어질 수 있는 마케팅 요소로써의 공간이 되어야 한다. 특히 행동체험은 신체적 경험을 유도함으로써 기억과 추억을 남기는 핵심적 공간마케팅 전략이다. 본 연구에서는 현실적 체험요소와 호기심 자극 체험요소를 제안하여 소비자들에게 은유적이고 장기적인 인식을 지원하며, 이것이 공간 마케팅 관점에서 반복적이고 지속적으로 접근 가능한 소비환경이 되는 전략을 제시한다.

• Defense and Technology
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• 1호통권155호
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• pp.38-43
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• 1992

유도무기는 개발에서 폐기까지 최소한 십년 이상이 소요되는 장기사업이며, 현재 전자파 환경이 급속히 복잡, 강력화 되는 추세일 뿐만아니라 적의 기만전술인 전자파 대항 기법의 발전추세를 비추어 볼때, 실로 장기적인 안목에서 대처해야 할 것이다. 특히 전기기폭장치(EED)의 오작동시 미칠 영향을 고려한다면, 전자파에 대한 안전을 최대한 강구해야함은 물론 상대적으로 낙후되어 있는 전자파 시험평가시설 및 기술의 선진화가 추진되어야 할 것이다

• 한국항공운항학회:학술대회논문집
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• 한국항공운항학회 2015년도 추계학술대회
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• pp.55-58
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• 2015

고고도 장기체공 무인기는 일반적인 무인기와 달리 고고도에서의 환경과 장시간의 체공에 따른 위험도가 높을 수밖에 없다. 따라서 신뢰도를 높이기 위한 다양한 방안을 강구해야 한다. 가장 중요한 요소 중 하나가 비행제어시스템이며, 본 논문에서는 비행제어시스템의 이중화에 따른 설계결과와 비행시험결과를 기술하였다.

• Computational Structural Engineering
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• 제10권1호
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• pp.62-69
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• 1997

본 고에서는 고층건물의 건설과정에서 발생하는 시간의 진행에 따른 기둥의 (장기)변형을 정확히 예측하고 이를 시공중에 보정하도록 함으로써 비구조요소의 강도와 사용을 만족시키기 위한 방법론을 제시하였다. 이 방법론은 실험적 통계치를 기초로 한 약산해법으로서 실무에 쉽게 적용할 수 있다. 52층 RC 건물에 대한 적용 결과 기둥에 발생하는 축소량에 가장 큰 영향을 미치는 것은 탄성변형이며, 건조수축의 효과가 가장 미세한 것으로 나타났다. 그러나, 2년 이상의 장기 변형이 지속될 경우 크립변형의 영향이 탄성변형에 비해 더욱 증가할 것으로 판단된다. 고층의 RC건물인 경우 기둥간 부등축소량의 최대치(=최대 시공오차)는 중간층 근처에서 발생하는 것으로 나타났다.

• Proceedings of the Korean Radioactive Waste Society Conference
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• 한국방사성폐기물학회 2012년도 춘계학술논문요약집
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• pp.285-286
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• 2012

• The Journal of Sustainable Design and Educational Environment Research
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• 제16권1호
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• pp.20-29
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• 2017

In order to prove the hypothesis that the element of school location planning - the density of development, availability of various private institutes, the location of school, the type of school district, the distance to nearby schools, the existence of communal areas, the pedestrian street, the number of road lanes - affects the increase and decrease of the number of students in the long term, we examined the tendency of the number of long-term (24 years). The results of the analysis are as follows: First, the development factors such as development density, location of school, type of school district, distance from neighboring schools, separation of pedestrians and cars are clearly related. Second, the planning factors such as location of private school and installation of pedestrian-only street seem to be related to each other. Third, the number of road lanes and element of "communal area" is irrelevant. This study is limited to generalization of five new metropolitan cities in the metropolitan area, and it is necessary to further elaborate the analysis factors and evaluation criteria.