• 제목/요약/키워드: Lay theory

검색결과 106건 처리시간 0.022초

괴산 김항묵 고택의 풍수고찰 (A Study on the Pungsu of Gim, Hang Mug's Traditional House in Goesan)

  • 한종구
    • 한국농촌건축학회논문집
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    • 제20권1호
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    • pp.77-84
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    • 2018
  • Pungsu theory is one of the main factor influenced on the traditional village and house in Korea. Regarding the fact that a real effect of pungsu on the formation of traditional village and house, Study with a view of Pungsu theory could be a good method for deeply understanding the traditional architecture in Korea. In this context, this study analyzes the Gim, Hang Mug's house which is designated no. 136 as an important folk cultural heritage, located in 20, Chilseong-ro $4^{th}$ street, Chilseong-myon, Goesan-gun Chungbuk province. The analysis of the site and space lay-out is carried out by Yong(Dragon), Hyoel(Auspicious Spot), Sa(Sands), Su(Water) aspects of the Pungsu(Fengshui) Hyungsei-ron. Through the study, I find that there are many efforts to preserve the auspicious energy and minimize the negative influence from the transformed process from the early lay out of house to upper class residence having many attached buildings by laying out buildings after carefully observing and analyzing surrounding geographical features according to Pungsu theory.

Failure analysis of laminates by implementation of continuum damage mechanics in layer-wise finite element theory

  • Mohammadi, B.;Hosseini-Toudeshky, H.;Sadr-Lahidjani, M.H.
    • Structural Engineering and Mechanics
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    • 제33권6호
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    • pp.657-674
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    • 2009
  • In this paper a 3-D continuum damage mechanics formulation for composite laminates and its implementation into a finite element model that is based on the layer-wise laminate plate theory are described. In the damage formulation, each composite ply is treated as a homogeneous orthotropic material exhibiting orthotropic damage in the form of distributed microscopic cracks that are normal to the three principal material directions. The progressive damage of different angle ply composite laminates under quasi-static loading that exhibit the free edge effects are investigated. The effects of various numerical modeling parameters on the progressive damage response are investigated. It will be shown that the dominant damage mechanism in the lay-ups of [+30/-30]s and [+45/-45]s is matrix cracking. However, the lay-up of [+15/-15] may be delaminated in the vicinity of the edges and at $+{\theta}/-{\theta}$ layers interfaces.

우주급 경통 열-흡습 설계

  • 이덕규
    • 항공우주기술
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    • 제4권1호
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    • pp.108-113
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    • 2005
  • 본 연구 에서는 고해상도 우주용 카메라의 경통부의 복합재 적층설계를 열환경 및 흡습에 의한 영향을 고려하여 수행하고 다층 지그재그이론에 기초하여 개발된 삼각형 유한요소를 이용 열흡 습 해석을 수행하여 융단도표를 통하여 도출된 최적 적층설계가 광학성능 허용범위를 만족하는지 검증 하였다.

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스트랜드와 와이어 로프의 강성해석 및 최적화 (Stiffiness Analysis and Optimization of Strand and Wire Rope)

  • 허성필;양원호;성기득;조명래
    • 대한기계학회논문집A
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    • 제24권5호
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    • pp.1246-1253
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    • 2000
  • Wire ropes are widely used in cable car, suspension bridge and elevator, etc. and there has been a growing need for ropes of large diameter. The theoretical procedures to obtain the stiffness coefficients of wire ropes, using previously reported theory, are programmed and the verification of the program is made. The effects of lay angle on the stiffness of strand are researched and comparisons on stiffness of rope are made according to the lay type. Axial stiffness optimization problems with coupling and torsional stiffness constraints are formulated and the effects of constraints on other stiffness coefficients on axial stiffness optimization are investigated.

Interaction Effects of Lay Theories and Failure Type on Adaptive versus Compensatory Consumption Behavior

  • Choi, Nak-Hwan;Wang, Li;Chen, Chang
    • 산경연구논집
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    • 제9권7호
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    • pp.19-32
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    • 2018
  • Purpose - This paper aims at exploring the effects of failure types such as failure in promotion orientation and failure in prevention orientation on consumers' consumption behavior, and the moderation role of lay theories in the effects. Research design, data, and methodology - This study employed 2 between-subject designs(failure in promotion orientation vs. failure in prevention orientation) and also 2 (failure in promotion orientation vs. failure in prevention orientation) with implicit self as the within-subject. Chinese consumers participated in the empirical study, and to verify the hypotheses ANOVA, T-test and regression analysis were used. Results - Consumers were more likely to choose adaptive consumption behavior rather than compensatory consumption behavior when they were encountered with failure in promotion orientation versus failure in prevention orientation. Lay theories did play the moderation role in the effect of failure types on consumption behavior. The incremental theorists who think that effort is an important way to accomplish their learning goals showed more willingness to conduct compensatory consumption behavior rather than adaptive consumption behavior. Conclusions - Marketers should put more attention on the ways by which their products can help consumers self-improve when consumers encounter with failure. They should also be aware of the importance of consumers' mindsets when designing and developing advertising messages.

축방향 압축력을 받는 인발성형부재의 좌굴해석 (Buckling Analysis of Pultruded Members under Axial Compression)

  • 이승식;백성용
    • 한국강구조학회 논문집
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    • 제18권5호
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    • pp.615-624
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    • 2006
  • 본 논문에서는 부재의 lay-up에 상관없이 사용할 수 있으며 복합재료 부재의 거동에 중요한 영향을 미치는 포아송 효과를 고려할 수 있는 확장된 복합재료 보이론을 제시하고, 확장된 보이론을 바탕으로 축방향 압축력을 받는 복합재료 박판부재의 좌굴식을 유도하였다. 유도된 좌굴식을 검증하기 위해서 기존에 발표된 인발성형 vinylester/E-glass 및 polyester/E-glass T형 부재의 휨-비틀림 좌굴실험결과와 vinylester/E-glass H형 부재의 휨 좌굴실험결과를 수치예제로 사용하였다. 이론적 좌굴하중과 실험적 좌굴하중 및 유한요소해석 결과와의 비교를 통하여 본 연구에서 제안된 좌굴식이 인발성형부재의 좌굴하중을 7% 정도 안전측으로 예측하는 것을 알 수 있었다.

친환경 뷰티 소비의 이면 -메이크업의 친환경 성분 표시가 지각된 외모 향상 속성에 미치는 영향- (The Other Side of Green Beauty Consumption -The Effect of Eco-Friendly Claims on Appearance Enhancement Attributes for Makeup-)

  • 이현정;이규혜
    • 한국의류학회지
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    • 제47권6호
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    • pp.1204-1220
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    • 2023
  • With the rising importance placed on sustainability for brands, a plethora of research addresses consumer responses concerning eco-friendly products. While positive effects of eco-friendly traits on beauty products have been discussed, this study addresses a wide research gap in the makeup category. Based on the goal-attribute theory and the lay theory of ethicality, detrimental effects of eco-friendly ingredient claims on perceived appearance enhancement attributes (AEA) were examined. A between-subject, single-factor (eco-friendly ingredient claims present vs. absent) web-based experimental design tested the effect of conditions on makeup products that emphasized AEA. Results found a negative effect of eco-friendly ingredient claims on perceived AEA, supporting previous literature regarding the 'green gap'. Evidence showed that perceived AEA fully mediated the effect of eco-friendly claims on purchase intention, which was moderated by AEA preference. Interestingly, findings show that the purchase intention of respondents with a near-average preference for AEA was not moderated. Results contribute to preexisting literature by extending the lay theory of ethicality and product function mismatch to the field of makeup. Managerial implications are discussed, including opportunities for eco-friendly makeup products to appeal to alternative benefits.

한국인의 행복개념에 대한 분석 (The folk psychology of happiness in Korea)

  • 최은수;김윤영
    • 한국심리학회지 : 문화 및 사회문제
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    • 제22권2호
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    • pp.165-182
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    • 2016
  • 행복에 대한 연구는 서구 중심의 학자들과 학문적 토대 아래 이루어져 왔다. 서양에서는 행복을 개인적인 성취와 대인관계에서의 긍정적인 정서적 경험으로 개념화하고 있다. 하지만 일본이나 중국 같은 동양권 문화에서 수행되었던 연구에 따르면 행복의 개념이 서양의 개념과 다르다는 것을 제안해준다. 본 연구는 83명의 대학생들을 대상으로 양적 분석 방법과 질적 분석 방법을 사용해 한국인들이 행복을 어떻게 개념화 하고 있는지 알아보았다. Yukiko와 Kitayama (2009)에서 일본인들과 미국인들의 행복개념을 비교 연구할 때 사용한 방법을 이용하여 한국인의 행복개념을 이전의 일본과 미국 데이터와 비교하는 작업을 실시했다. 분석결과, 한국인들은 행복으로 인해 생기는 긍정적인 결과와 부정적인 결과를 모두 고려하는 변증법적인 행복 개념을 가지고 있어 일본인들과 비슷한 행복개념을 보이는 것으로 나타났으며, 행복을 지배적으로 긍정적인 경험으로 지각하는 미국인들과는 차이를 보였다. 또한 한국인들은 정서 상태로서의 행복과 삶의 다른 영역 (대인관계, 일)에 영향을 미치는 기능으로서의 행복으로 분류하는 것으로 나타났다. 본 연구는 한국인들의 행복개념을 체계적으로 분석하는 시도를 통해 한국인이 가지는 행복개념의 특수성을 기존의 서구 중심의 행복 연구와 이론에서 정의하는 행복개념과 함께 고려하는 통합적인 시각이 필요하다는 점을 시사해준다.

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Isogemetric aeroelastic analysis of composite cylindrical panels with curvilinear fibers

  • Mohammad Mahdi Navardi;Hossein Shahverdi;Vahid Khalafi
    • Steel and Composite Structures
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    • 제52권5호
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    • pp.515-524
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    • 2024
  • The principal goal of the present study is to examine the aeroelastic analysis of cylindrical laminated shells with curvilinear fibers. To attain this objective, the equations of motion are firstly extracted according to the first-order shear deformation theory (FSDT). The linear piston theory is then implemented to estimate aerodynamic loads for various airflow angles over the cylindrical shell area, providing the aeroelastic equations. The well-known isogeometric analysis based on the NURBS basis functions is subsequently developed to discretize the aeroelastic equations of the considered problem. Finally, by writing the resultant equations in the standard form of an eigenvalue problem, the panel flutter analysis of a cylindrical variable stiffness composite laminated (VSCL) shell will be carried out. The comparison and validation of achieved results with the results of references mentioned in the literature are made to demonstrate the accurateness of the present formulation. Also, the influence of various parameters, including the airflow angle, fiber path orientation, radius of curvature, and converting symmetric lay-up to unsymmetrical lay-up on the flutter threshold is studied.

Design of High Stability Space Tube

  • Lee Deog-Gyu;Woo Sun-Hee;Lee Eung-Shik;Youn Heong-Sik;Paik Hong-Yul
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2004년도 Proceedings of ISRS 2004
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    • pp.479-482
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    • 2004
  • Laminate Design of a composite tube for a space telescope(Fig. 1) under hygrothermal load is studied. Carpet plots for laminate effective engineering constants are generated and used for selecting the best tube lay-ups satisfying the optomechanical requirements for a space telescope being dimensional1y stable under orbital thermal loading. Despace of the tubes constructed with the selected lay-ups are calculated with a Zig-Zag Triangular Element which accurately represents through thickness stress variations for laminated structures. The effects of moisture absorption when exposed to humidity environment and moisture desorption through outgassing on the dimensional stability are also investigated.

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