• 한국소음진동공학회논문집
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• 제24권4호
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• pp.324-331
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• 2014

The sensor configuration of the magnetostrictive guided wave system can be described as a single continuous transducing element which makes it difficult to separate the individual modes from the reflected signal. In this work we develop the mode decomposition technique employing chirplet transform based on the maximum likelihood estimation, which is able to separate the individual modes from dispersive and multimodal waveform measured with the magnetostrictive sensor, and estimate the time-frequency centers and individual energies of the reflection, which would be used to locate and characterize defects. Simulation results on a carbon steel pipe are presented, which show the accurate mode separation and more discernible time-frequency representation could become enabled using the proposed technique.

• 한국언어정보학회지:언어와정보
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• 제18권2호
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• pp.1-29
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• 2014

Relativization is one of the common syntactic operations to merge two different clauses into a single information unit. This operation plays a pivotal role to structuralize multiple clauses cohesively as well as serves to specify the property an individual has within the context. That implies that relativization contributes to information structure of multiclausal sentences. In this context, this paper delves into information structure of relative clauses in English with an eye toward creation of a computational model from a standpoint of machine translation. The current work employs Head-driven Phrase Structure Grammar (HPSG, Pollard and Sag (1994)) as a theory of grammar and Minimal Recursion Semantics (MRS, Copestake et al. (2005) as a meaning representation system. Building upon these formalisms, this paper addresses how information structure of relative clauses can be represented and constrained. The current work makes use of Individual CONStraints (ICONS) for modeling relative clauses with respect to information structure. The current work also investigates which relative clause involves which information structure constraint. The present study argues that non-restrictive relative clauses impose a more specific constraint on information structure than restrictive relative clauses.

• 대한수학교육학회지:학교수학
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• 제17권1호
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• pp.19-33
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• 2015

본 연구는 일반계 고등학교 1학년 학생들을 대상으로 컴퓨터 대수시스템(Computer Algebra Systems, CAS), 즉 CAS 공학을 사용한 수학수업을 교사의 표상 전환 중심으로 살펴보았다. 이 수업에서 수학교과 내용별로 어떤 표상 전환이 일어났는지를 한 달 진행된 CAS 공학을 사용한 15차시 수업 중 합성함수의 개념 도입부분에 해당하는 두 차시의 수학 수업을 중심으로 분석하였다. 특히 Lesh, Behr, & Post(1987)의 투명 표상과 불투명 표상 사이의 전환과 Kosslyn(1994)의 설명 표상과 묘사 표상 사이의 전환을 중심으로 살펴보았다. 본 연구의 결과 CAS 공학은 일반계 고등학교 수학 수업에서 표상 전환을 도와주었으며 교사 개인의 표상을 만들어내는 기회를 제공하였다. 그러나 표상 전환의 기회가 모두 교수-학습의 목적에 맞게 사용되지는 않았다. 이러한 결과는 수학 수업에서 CAS 공학에 의한 표상 전환의 새로운 역할의 중요성과 교사 역할의 중요성을 재고하는 기회를 제공할 것으로 기대된다.

• 한국심리학회지:법
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• 제13권1호
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• pp.1-22
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• 2022

본 연구는 국민참여재판의 평결범주가 일반인의 법적판단에 미치는 영향과 그 과정에서 '무죄표상'의 역할을 확인하였다. '무죄표상'은 일반적인 의미의 무죄(잘못이 없음)판단을 위한 심리적 기준을 의미한다. 또한, 법률로 정해진 유죄판단 기준으로 간주되는 '합리적 의심의 여지없는 유죄의 증명(beyond a reasonable doubt: BRD)'과 개인의 역치에 대한 추정치인 IT(individual threshold)의 역치로서의 기능을 비교하였다. 본 연구는 평결범주(유죄/무죄 vs. 유죄/유죄아님)와 피고인 유죄가능성(낮음 vs. 높음)을 각각 두 수준으로 조작한 2×2 완전교차요인설계를 사용하였으며, 온라인으로 진행되는 실험에 자발적으로 참여한 137명의 자료가 분석에 사용되었다. 실험은 '무죄표상' 및 기소유죄확률 측정, 재판시나리오 제시, 피고인에 대한 법적판단(판단 확신감 및 피고인 유죄가능성 추정 등 포함) 순으로 진행되었다. 연구 결과, 평결범주는 일반인의 법적판단에 유의한 영향을 미치지 못하는 것으로 나타났으나 '유죄/무죄'의 평결범주를 제시받은 경우 '유죄/유죄아님'의 평결범주를 제시받은 경우보다 유죄판단 비율이 높은 경향이 있었다. 일반인들의 '무죄표상'과 평결범주의 상호작용은 이론적 유죄판단 역치(BRD)와 개인의 역치(IT)의 차이(역치 변화량)를 잘 예측하는 것으로 나타났으며, '유죄/무죄'의 평결범주를 제시받은 경우에 '유죄/유죄아님'의 평결범주를 제시받은 경우보다 '무죄표상'의 변화에 따른 역치변화량이 더 컸다. 역치로서의 BRD와 IT를 비교한 결과에서는 IT가 유죄가능성과 상호작용하여 일반인의 법적판단을 유의하게(p<.1) 예측하는 것으로 나타나서 IT가 BRD보다 더 좋은 역치 추정치라고 할 수 있었다. 본 연구는 법률가들 사이에서 종종 제기되는 문제인 국민참여재판 평결범주의 효과를 실험을 통하여 확인하고 그 효과의 심리적 기제에 대한 논리적인 추론 및 경험적 근거를 제공하였다는 데 의의가 있다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2012년도 춘계학술대회
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• pp.893-895
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• 2012

최근 인터넷의 급속한 보급과 네트워크 기술의 발전은 현재 USN(Ubiquitous Sensor Network)을 실현하기 위한 연구가 활발히 진행 중이다. USN의 센서 노드는 개별적인 센서 정보 서비스를 제공하기 위해 다양한 종류의 센서를 탑재한다. 이를 위해 불특정 사용자가 서비스를 이용하여 XML 기반의 웹 서비스 환경에서 활용할 표준화된 데이터 표현 언어가 필요하다. 본 논문에서는 필요한 센서 정보를 표준화된 형태로 표현하기 위한 USN 응용 서비스에서의 센서 데이터 표현 언어를 설계하였다. 이는 USN 분야의 기반 기술과 서비스 활성화를 위해 활용 될 것이다.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2008년도 정기 학술대회
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• pp.470-475
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• 2008

Building Information Modeling(BIM) is rooted in the economic and functional advantages of maturing from paper-based 2D drawings. The paper-based design and construction drawings are typical production from BIM and using the drawing under BIM environment is needed because there is not an alternative media instead of paper-based drawings. However using the 2D drawing process based on 2D CAD for BIM environment directly has difficulties because there are significant differences in data structure between CAD and BIM. CAD is based on traditional drawings as a whole while BIM is focused on individual objects and providing various levels of information associated with the objects. It can be an obstacle to move from 2D CAD to BIM that we don't have a standard or guideline for BIM. Futhermore, the complexity of drawing in representation would be the obstacle too, so the solution is discussed in the research based on the case of Samoo Architects and Engineers.

• 한국주거학회논문집
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• 제18권1호
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• pp.1-10
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• 2007

This study aims to examine the way in which magazines represent housings, since magazines are one of major channel to connect individual houses with the public including professionals and the mass as well. Not only the professional architectural magazine but also women's magazine produce discourses which exercise huge influences on the public's understanding of the housings. After examining the different ways of representing housings in the houses related articles of architectural magazine and women's magazine, serious discrepancies have been noticed in both form and content of the text. In representing housings, women's magazine uses headlines and standfirsts with various modifiers to enhance the chance of interventions of the magazine/journalists. Focusing of the interests upon residents and architects, women's magazines force the reader to look at the housings through the frame of social status and celebrity of the residents and architects marginalizing actual houses. On the other hand, architectural magazines adopt externalized and objective way of representation using minimum layout elements following relatively uniform editing format. The abstract, rigid and masculine way of representation in the architectural magazines endow the published housings with the masculine and normative senses which can be seen as some sorts of aura which obstruct easy access to the housings themselves.

• 한국초등과학교육학회지:초등과학교육
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• 제23권3호
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• pp.251-265
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• 2004

Conceptual teaming has been one of the important issue in science education, and its theory and method has been interacted with the studies of philosophy of science, cognitive science, and cognitive psychology. The last two decades have witnessed a remarkable growth of the study on brain-style computation, i.e. connectionism. This study aimed to investigate the properties of the connectionist views of the concept and its implications in the conceptual learning of science. In connectionist views, a concept was represented as a pattern of activity distributed over many connected units, and a kind of network composed of many sub-concept units. And the ＇distributed representation＇ had the features of the constructivity, the automatically generalization, and the tunability. On the base of these views, it was suggested that (ⅰ) ＇Typically-Perceived-Situation＇, a kind of mental representation rising spontaneously in an individual mind when someone is thinking about any object, should be highlighted, and (ⅱ) the roles of the sub-concept units in formation of concept and the resolution of concept into the sub-concept units should be highlighted. Finally the meanings of these implications in conceptual teaming of science are discussed.

• 한국실내디자인학회논문집
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• 제15권3호
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• pp.75-82
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• 2006

Discussions on transparency have been being analyzed as variedly as the diversity itself in contemporary architecture. Though it is inappropriate to summarize the discussions into several specific viewpoints, as the notional classifications on transparency are varied according to the points of individual researchers, it can be said that, by approaching with the standpoint of the designers who may have various difficulties in the course of design, the meaning of this thesis lies largely in the fact that it attempted to study the architectural application techniques of transparency notion both through surface aspect which could be said to decide on the appearance of the architecture shape and through, in physical aspects as a combination of space components comprising the inner space, spatial aspect to which architectural techniques of transparency notion are applied. Through these, we conclude as follows. 1. Representation Techniques of Transparency in Surface : Transparency from surface viewpoint could be categorized into 1) emphasis on property-of-matter, 2) lightness of Literal material itself, 3) visual ambivalence, and 4) dematerialized hyper-surface. 2. Representation Techniques of Transparency in Space : In spatial viewpoint, transparency is summarized into sub-viewpoints as 1) straightforward space 2) ambiguous spacer 3) expanded space

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제18권6호
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• pp.1675-1691
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• 2024

The metaverse is an emerging interactive domain that enables people to participate in an array of activities utilizing cutting-edge technologies. Generation Z perceives no substantial distinction between their virtual and actual identities, regarding the virtual world as an extension of reality. As an attempt to apply Bourdieu's theory of cultural taste and cultural capital to the area of the metaverse avatar, investigates the impact of users' cultural tastes on the avatars they create and experience in the metaverse. The research employed both focus group interviews and individual in-depth interviews with users of Generation Z. The study demonstrated that Generation Z users exhibit unrestricted engagement in the metaverse, although their behavior is significantly affected by their economic situation. One's cultural tastes, influenced by diverse interactions with their parents, greatly impact how they engage in cultural activities in the metaverse. Three categories were identified from the perception of avatars: Idealized Self-Representation Avatars, Atypical Self-Representation Avatars, and Integrated Self-Representation Avatars. Perceiving avatars as an extension of the self was associated with higher cultural capital. Participants held divergent perspectives on the metaverse, with certain individuals regarding it as a realm of imagination or a limitless arena for activities.