• Smart Structures and Systems
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• 제3권4호
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• pp.423-437
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• 2007

The empirical mode decomposition (EMD) method is well-known for its ability to decompose a multi-component signal into a set of intrinsic mode functions (IMFs). The method uses a sifting process in which local extrema of a signal are identified and followed by a spline fitting approximation for decomposition. This method provides an effective and robust approach for decomposing nonlinear and non-stationary signals. On the other hand, the IMF components do not automatically guarantee a well-defined physical meaning hence it is necessary to validate the IMF components carefully prior to any further processing and interpretation. In this paper, an attempt to use the EMD method to identify properties of nonlinear elastic multi-degree-of-freedom structures is explored. It is first shown that the IMF components of the displacement and velocity responses of a nonlinear elastic structure are numerically close to the nonlinear normal mode (NNM) responses obtained from two-dimensional invariant manifolds. The IMF components can then be used in the context of the NNM method to estimate the properties of the nonlinear elastic structure. A two-degree-of-freedom shear-beam building model is used as an example to illustrate the proposed technique. Numerical results show that combining the EMD and the NNM method provides a possible means for obtaining nonlinear properties in a structure.

• 한국실내디자인학회논문집
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• 제21권6호
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• pp.147-157
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• 2012

This paper aims to examine the fundamental relationship of what principles cause the aesthetic shapes in Korean sarangbang furniture of the $19^{th}$ century. Focusing on the Greimas' isotopic and semantic structure analysis, this research analyzed the traditional Korean men's furniture in four steps; signifier analysis, isotopic analysis, semantic structure analysis, and comprehensive interpretation. The results show that the expressive qualities of sarangbang furniture included visual symmetric aesthetics, and the hues of natural materials with dark tones. The manufacturing process emphasized the characteristics of natural materials; while diversity was respected in decorations, function as restrained form was also important with a concise image. Through these characteristics, sarangbang furniture revealed a balance, a harmony of contrastive elements, and a restrained aesthetics. Within these qualities, it was seen that aesthetic principles, such as "severance and communication," "artifice and nature," "restraint and manifestation," "toughness and softness," "filling and emptying" and "decoration and utility" were in a mutually supplementary relationship. At the basis of this aesthetic thought appears to be Confucianism, which had been the model for seonbi politics and scholarship.

• 한국조경학회지
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• 제22권4호
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• pp.23-36
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• 1995

This study aims at scrutinizing the etymological meanings and literal usages of the term Gyung perse so as to clarify the traditional concepts formualted in the northeastern Asian countries. Related classical dictionaries and literatures in Korea and China were consulted intensively. Strictly speaking, the compound word gyung-gwan(景觀) composed of gyung(景:seen objects) and gwan(觀:seeing) in terms of word formation is not the synonym of the English term Landscpe. The Chinese character Gyung(景) composed of the character il(日:the Sun) and the character gyung(京:royal palace or capital city) originally indicated a brilliant and beautiful view of the capital city seen in a clear and bright daylight. Thereafter this ideographic letter had been used to indicate an unusual view which is aesthetically and can be used as a typical landscape schema or a model. Due to intrinsic nature of this kind of view, the meanings of gyung had been extended connotativelly as well as denotativelly: the meaning worthy of note in terms of landscape studies ar l) visible object which places some physical and psychological distance from the observer; 2)the scene or the backdrop of a theater, 3)a defined vista. With these in mind, meanings and usages of related terms as Kwung(光:light or bright), Pung(風:wind or fresh). Chi(致:fine), Mul(物:object or world), Gae (槪:general), Seung(勝:outstanding or surpassing), Saek(色:color or colorful), which had produced diversified and delicate connotations through compounding with the etymon Gyung, were reviewed.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제33권4호
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• pp.445-453
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• 2019

성별(性別)은 사회 및 문화적 배경에 따라 그 역할과 의미가 다르게 해석될 수 있다. 성별에 대한 이해는 수학 교육 연구 방향을 변화시킬 수 있다는 전제를 바탕으로 본 연구에서는 문헌연구방법을 적용하여 국내 수학 교육 선행 연구에 있어 성별이 어떻게 해석되고 있는지를 확인하였다. 특히 본 연구에서는 실증주의적 관점을 바탕으로 한 예측 모델, 구성주의적 관점을 바탕으로 한 성별 스키마 모델, 역사적 관점을 바탕으로 한 문화 역사적 구성 모델, 포스트모더니즘 관점을 바탕으로 한 포스트모더니즘 모델에서의 성별 연구 방법에 대한 분석을 토대로 선행 연구를 분석하여 국내 수학 교육 연구의 동향을 파악하였다. 분석 결과 국내 수학 교육에서 성별은 생물학적 차이로 인식되고 있으며, 통계적 분석 기법을 활용하여 성별과 수학 교육의 관련 요소 분석이 주를 이루고 있음을 확인하였다. 이에 향후 수학 교육에 있어 성별의 역할을 해석할 수 있는 다양한 접근법이 필요하다는 시사점을 얻을 수 있었다.

• 가정과삶의질연구
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• 제21권5호
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• pp.25-40
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• 2003

Since Korea open her ports to the West, she had undergone a great change under the alien influences both on the macro-social and micro-social aspects. This study aims to review the korean housing, corresponding with the everyday life, during the period of transition between the 1876 - 1910 and to interpret its process of modernization and the meaning of modernity. With regards to understand the holistic human relationship and place pf living through history, this study takes the Nobert Elias' Civilization Theory as a theoretical basis. References were therefore, made to various records of foreign missionary at the time, with respect not only to macro sociological changes but also to changes of everyday life. It is of course to take physical and structural aspects of housing architecture into consideration. These works, thus, led to presuming the housing culture of said period. In order to investigate modern character of korean housing, distinctively represented by spatial structure, considerations were made to various architectural examples according to the social and residential status both in urban and rural area. As a results, this paper came to the remarks as follows; 1. It is understood, that the process of modernization is a part of the process of civilization as synthetic process. It is integrated with the change of socio-cultural aspects and everyday life. 2. Korean housing in the said period shows various different residential status and grade of civilization according to the social status as well as economical status. Modern housing was not in general yet. 3. Housing for high classes and middle classes in Seoul shows a tendency of assimilation and imitation after western model. But some examples within the housing of high classes represent its own modernity, that is based on the rationalism and equalization 4. In the housing of lower classes, it was very far from the benefits of civilization. It could analogize from the immature control of disgrace, from undevelopment of individual territory and from uncultivation of rationality in the housing space.

• 대한지리학회지
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• 제51권3호
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• pp.421-439
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• 2016

세계의 경제가 글로컬라이제이션(glocalization)이라는 조건 속에서 변화하면서, 국가의 역할은 축소되고, 도시 및 지역의 공간적 역할이 상대적으로 중요해지고 있으며, 관련하여 장소의 역할에 대해 장소마케팅이나 장소브랜딩 등을 통해 지금까지 많은 논의가 이루어져왔다. 하지만, 결과로서의 마케팅전략보다는 과정과 참여를 중요시하는 광의적 의미의 종합적인 '장소만들기'가 중요하다는 의미에서 본 논문은 문화를 기반으로 하는 지역발전이라는 부분에 집중하여 창조적 장소만들기의 전략이 어떤 의미를 갖는지를 재조명하려고 하였다. 구체적으로는 문화콘텐츠산업을 통한 창조적 장소만들기의 한국과 일본사례의 검증을 통하여, 글로컬라이제이션 시대 장소마케팅과 장소브랜딩, 장소만들기의 융합모델을 제시하고, 가치사슬적 특성을 고려하여 자원의 투입과 과정, 산출 등 각 과정의 특성에 집중할 필요가 있음을 밝혔다. 특히, 문화를 기반으로 장소를 해석하고, 지역공동체에서 삶의 질을 개선시키는 목표를 위해 어떻게 선순환구조를 만들것인가 하는 것이 중요하다는 점을 강조하였다.

• 전기학회논문지
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• 제60권1호
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• pp.167-173
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• 2011

Most of the terminologies used in medical domain is not intended to be applied directly in clinical setting but is developed to integrate the terms by defining the reference terminology or concept relations between the terms. Therefore, it is needed to develop the subsets of the terminology which classify categories properly for the purpose of use and extract and organize terms with high utility based on the classified categories in order to utilize the clinical terms conveniently as well as efficiently. Moreover, it is also necessary to develop and upgrade the terminology constantly to meet user's new demand by changing or correcting the system. This study has developed a mapping tool that allows accurate expression and interpretation of clinical terms used for medical records in electronic medical records system and can furthermore secure semantic interoperability among the terms used in the medical information model and generate common terms as well. The system is designed to execute both 1:1 and N:M mapping between the concepts of terms at a time and search for and compare various terms at a time, too. Also, in order to enhance work consistency and work reliability between the task performers, it allows work in parallel and the observation of work processes. Since it is developed with Java, it adds new terms in the form of plug-in to be used. It also reinforce database access security with Remote Method Invocation (RMI). This research still has tasks to be done such as complementing and refining and also establishing management procedures for registered data. However, it will be effectively used to reduce the time and expenses to generate terms in each of the medical institutions and improve the quality of medicine by providing consistent concepts and representative terms for the terminologies used for medical records and inducing proper selection of the terms according to their meaning.

• 복식문화연구
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• 제28권6호
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• pp.858-874
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• 2020

This study attempts to analyze the social and cultural meanings of the ethnic groups to which different types of shamans belong in Siberia from the appearance characteristics in terms of clothing through Roland Barthes's semiotic theory. The research method here is to analyze three types of shaman costume classified by Holmberg, which are bird-type, deer-type, and bear-type, through theoretical research and to investigate the analysis process of Roland Barthes's semiotics theory. Roland Barthes's approach to semiotics presents an analysis model that can explore the sociocultural meaning of the Siberian shaman costume. The research results are as follows. In the first type, to be closer to the god of the upperworld, shamans transform themselves into birds by decorating their costumes with the characteristic elements of birds such as feathers and wings. In the second type, the shamans' costumes are made of deerskin, and the headdress is shown in the shape of antlers to make it easier to receive messages from the upperworld and run fast in the underworld. In the third type, the shaman's costume is made of bearskin, the head is covered with bearskin, and the body is decorated with bear pendants. Through the power of the bear, the shaman is sent to the underworld to defeat evil gods and remove diseases. Shamans can show their particularity of being a demigod and non-binary gender through clothing. They use this to reflect their authority as a medium of communication between man and god.

• 항공우주정책ㆍ법학회지
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• 제30권2호
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• pp.249-277
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• 2015

유럽연합이 제정하여 시행하고 있는 Regulation (EC) No 261/2004 ("Regulation")는 비자발적 탑승거부, 운항취소, 운항지연 등의 사안에 대해 항공승객을 보호하는데 주목적을 두고 있다. 이와 관련하여 항공편 지연으로 불편을 겪은 승객들이 탑승거부, 운항취소에 대해 명시적으로 적용되는 제7조에 따른 금전 보상청구권을 청구한 사건들이 있었다. 이에 대해 유럽연합 사법법원(Court of Justice of the European Union, CJEU)은 승객들에게 시간적인 손실이 발생한다는 점에서 항공편이 운항취소된 경우와 운항지연된 경우는 동일하므로, 당초 항공사가 설정한 총 비행시간 보다 3시간이 초과되어 운항이 지연된 경우에는 해당 승객이 자발적 탑승거부나 운항취소와 마찬가지로 금전손실 보상청구권을 행사할 수 있다고 판단하였다. Regulation상에 운항지연의 경우 제7조의 보상청구권이 적용된다는 명시규정이 존재하지 않음에도 불구하고, 승객의 보호라는 Regulation의 입법취지를 고려하여 법원이 적극적으로 그러한 권리를 긍정한 것이다. 이러한 법원의 관점은 규정의 유추해석이라는 비판을 받을 가능성도 있지만, Regulation에 산재되어 있는 운항취소와 운항지연에 관한 일괄적 취급에 관한 근거 및 승객보호라는 Regulation의 입법취지를 고려할 때 설득력을 가진다. 더욱이 법원은 운항지연의 경우 Regulation과 몬트리올 협약이 동일한 내용을 규정하고 있지 않으므로 몬트리올 협약 제29조는 이 경우에 적용되지 않고 양자는 충돌되지 않는다고 보고 있다. 즉, Regulation은 항공편의 지연이라는 사실에 관한 승객의 불편과 손실을 보호하는 규범인 반면, 몬트리올 협약은 지연이라는 사실로 인하여 인과관계가 인정되는 범위에서 발생된 손해에 관한 배상을 규정하고 있다는 것이다. 위와 같은 유럽연합의 규정과 법원의 견해는 승객보호에 관한 진보적인 성향을 잘 보여주는 선구적인 내용이라고 할 수 있다. 구체적인 규정 없이 승객보호를 위한 절차와 계획의 수립의무만을 선언적으로 규정하고 있는 현재의 우리나라 항공법이 참고할 필요가 있을 것으로 본다.

• 대한교통학회지
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• 제20권3호
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• pp.115-128
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• 2002

도로의 평면곡선부는 선형 설계시 직선부와 달리 여러 가지 요소를 추가적으로 고려하며 확폭의 문제도 이중의 하나이다. 확폭은 차량 뒷바퀴가 앞바퀴의 궤적을 따라 주행하지 않고 이탈하는 궤도이탈(offtracking)현상 때문에 발생하고, 곡선부 설계시 이러한 현상을 반영하여야 운전자 안전성을 보장할 수 있다. 특히 대형차량 운행이 빈번한 산업도로나. 곡선반경이 작은 산악지역 간선도로의 경우 궤도이탈현상으로 인해 곡선부 사고위험이 증가하기 때문에 확폭 필요성이 강조된다. 본 연구에서는 굴절차량 궤도이탈모형 이론 및 확폭 설치 기준에 관련된 국내외 연구 결과를 비교·검토하여 도로의 기하구조와 차량의 속도를 감안한 현실적인 동적 궤도이탈모형(Dynamic Offtracking Model)을 개발하여 이 모형을 이용한 확폭량 산정 방법을 제시하였다. 본 연구로부터 얻어진 성과는 다음과 같다. 첫째, 견인차와 피견인차의 동적 거동에 편경사영향을 반영할 수 있는 궤도이탈모형을 개발하였다. 둘째, 개발된 동적 궤도이탈모형을 이용하여 우리나라 실정에 맞는 새로운 확폭량 산정 방법을 개발하였다. 셋째, 개발된 모형을 이용하여 실제 궤도 이탈량과 확폭량을 산정하여 현재 사용되고 있는 우리나라 곡선부 확폭 설치기준의 타당성을 살펴보았다.