• Title/Summary/Keyword: Structural Aspects

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Analysis of characteristics of Deformation in structural fashion - With a focus on haute couture collections in 2008 S/S ~ 2019 F/W - (구조적 의상에 나타난 데포르마시옹의 특성 분석 - 2008 SS~2019 FW 오뜨꾸띄르를 중심으로 -)

  • Lee, So-Young
    • Journal of the Korea Fashion and Costume Design Association
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    • v.22 no.3
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    • pp.63-74
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    • 2020
  • Modern clothes are part of formative arts and express experimentation and originality. This tendency is especially prominent in structural fashion. This study set out to analyze structural fashion in various aspects, examining and analyzing the expressive and formative characteristics of Deformation and contribute to the development of creative fashion design. The approach of peer debriefing was used with three fashion experts to identify structural clothes in the women's haute couture collections from a total of 24 seasons from S/S of 2008 to F/W of 2019. The clothes with Deformation characteristics were then identified to analyze expressive and formative characteristics. The expressive characteristics of Deformation in structural clothes were exaggeration, distortion, and recombination. Exaggeration was expressed with exaggerated sizes, forms, and excessive use. Distortion was expressed with distorted forms and functions and through optical illusions. Recombination was expressed with the recombination of forms and roles. The formative characteristics of Deformation were maximum, playfulness, and unfamiliarity. The study connected the expressive characteristics to the formative ones and examined them simultaneously, finding that "distortion" and "playfulness" represented the expressive and formative characteristics, respectively. The characteristics of Deformation are expressed in various ways in structural fashion. If they are considered, they will make valuable contributions to creative ideas.

Numerical simulation of an external prestressing technique for prestressed concrete end block

  • Murthy, A. Rama Chandra;Ganapathi, S. Chitra;Saibabu, S.;Lakshmanan, N.;Jayaraman, R.;Senthil, R.
    • Structural Engineering and Mechanics
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    • v.33 no.5
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    • pp.605-619
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    • 2009
  • This paper presents the details of finite element (FE) modeling and analysis of an external prestressing technique to strengthen a prestressed concrete (PSC) end block. Various methods of external prestressing techniques have been discussed. In the proposed technique, transfer of external force is in shear mode on the end block creating a complex stress distribution. The proposed technique is useful when the ends of the PSC girders are not accessible. Finite element modeling issues have been outlined. Brief description about material nonlinearity including key aspects in modeling inelastic behaviour has been provided. Finite element (FE) modeling including material, loading has been explained in depth. FE analysis for linear and nonlinear static analysis has been conducted for varying external loadings. Various responses such as out-of-plane deformation and slip have been computed and compared with the corresponding experimental observations. From the study, it has been observed that the computed slope and slip of the steel bracket under external loading is in good agreement with the corresponding experimental observations.

Understanding the Plasticity of Amorphous Alloys Via the Interpretation of Structural Evolution Inside a Shear Band (비정질 합금의 전단띠 내부 구조변화 해석을 통한 소성의 이해)

  • Lee, Chang-Myeon;Park, Kyoung-Won;Lee, Byeong-Joo;Shim, Jae-Hyeok;Lee, Jae-Chul
    • Korean Journal of Materials Research
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    • v.19 no.5
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    • pp.276-280
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    • 2009
  • The effect of the initial packing structure on the plasticity of amorphous alloys was investigated by tracing the structural evolution of the amorphous solid inside a shear band. According to the molecular dynamics simulations, the structural evolution of the amorphous solids inside the shear band was more abrupt in the alloy with a higher initial packing density. Such a difference in the structural evolution within the shear band observed from the amorphous alloys with different initial packing density is believed to cause different degrees of shear localization, providing an answer to the fundamental question of why amorphous alloys show different plasticity. We clarify the structural origin of the plasticity of bulk amorphous alloys by exploring the microstructural aspects in view of the structural disordering, disorder-induced softening, and shear localization using molecular dynamics simulations based on the recently developed MEAM (modified embedded atom method) potential.

Structural damage and force identification under moving load

  • Zhu, Hongping;Mao, Ling;Weng, Shun;Xia, Yong
    • Structural Engineering and Mechanics
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    • v.53 no.2
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    • pp.261-276
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    • 2015
  • Structural damage and moving load identification are the two aspects of structural system identification. However, they universally coexist in the damaged structures subject to unknown moving load. This paper proposed a dynamic response sensitivity-based model updating method to simultaneously identify the structural damage and moving force. The moving force which is equivalent as the nodal force of the structure can be expressed as a series of orthogonal polynomial. Based on the system Markov parameters by the state space method, the dynamic response and the dynamic response derivatives with respect to the force parameters and elemental variations are analytically derived. Afterwards, the damage and force parameters are obtained by minimizing the difference between measured and analytical response in the sensitivity-based updating procedure. A numerical example for a simply supported beam under the moving load is employed to verify the accuracy of the proposed method.

Seismic control of concrete buildings with nonlinear behavior, considering soil structure interaction using AMD and TMD

  • Mortezaie, Hamid;Zamanian, Reza
    • Structural Engineering and Mechanics
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    • v.77 no.6
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    • pp.721-734
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    • 2021
  • The seismic analysis of structures without applying the effects of soil can undermine functional objectives of structure so that it can affect all the desired purposes at the design and control stages of the structure. In this research, employing OpenSees and MATLAB software simultaneously and developing a definite three-dimensional finite element model of a high-rise concrete structure, designed using performance-based plastic design approach, the performance of Tuned Mass Damper (TMD) and Active Mass Damper (AMD) is both examined and compared. Moreover some less noted aspects such as nonlinear interaction of soil and structure, uplift, nonlinear behavior of structure and structural torsion have received more attention. For this purpose, the analysis of time history on the structural model has been performed under 22 far-field accelerogram records. Examining a full range of all structural seismic responses, including lateral displacement, acceleration, inter-story drift, lost plastic energy, number of plastic hinges, story shear force and uplift. The results indicate that TMD performs better than AMD except for lateral displacement and inter-story drift to control other structural responses. Because on the one hand, nonlinear structural parameters and soil-structure interaction have been added and on the other hand, the restriction on the control force applied that leads up to saturation phenomenon in the active control system affect the performance of AMD. Moreover, the control force applied by structural control system has created undesirable acceleration and shear force in the structure.

Application of UML (Unified Modeling Language) in Object-oriented Analysis of Microarray Information System (UML을 활용한 마이크로어레이 정보시스템의 객체지향분석)

  • Park, Ji-Yeon;Chung, Hee-Joon;Kim, Ju-Han
    • Proceedings of the Korean Society for Bioinformatics Conference
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    • 2003.10a
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    • pp.147-154
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    • 2003
  • Microarray information system is a complex system to manage, analyze and interpretate microarray gene expression data. Establishment of well-defined development process is very essential for understanding the complexity and organization of the system. We performed object-oriented analysis using Unified Modeling Language (UML) in specifying, visualizing and documenting microarray information system. The object-oriented analysis consists of three major steps: (i) use case modeling to describe various functionalities from the user's perspective (ii) dynamic modeling to illustrate behavioral aspects of the system (iii) object modeling to represent structural aspects of the system. As a result of our modeling activities we provide the UML diagrams showing various views of the microarray information system. We believe that the object-oriented analysis ensures effective documentations and communication of information system requirements. Another useful feature of object-oriented technique is structural continuity to standard microarray data model MAGE-OM (Microarray Gene Expression Object Model). The proposed modeling e(forts can be applicable for integration of biomedical information system.

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The M6.4 Lefkada 2003, Greece, earthquake: dynamic response of a 3-storey R/C structure on soft soil

  • Giarlelis, Christos;Lekka, Despina;Mylonakis, George;Karabalis, Dimitris L.
    • Earthquakes and Structures
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    • v.2 no.3
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    • pp.257-277
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    • 2011
  • An evaluation is presented of the response of a 3-storey R/C structure during the destructive Lefkada earthquake of 14/08/2003. Key aspects of the event include: (1) the unusually strong levels of ground motion (PGA = 0.48 g, $SA_{max}$ = 2.2 g) recorded approximately 10 km from fault, in downtown Lefkada; (2) the surprisingly low structural damage in the area; (3) the very soft soil conditions ($V_{s,max}$ = 150 m/s). Structural, geotechnical and seismological aspects of the earthquake are discussed. The study focuses on a 3-storey building, an elongated structure of rectangular plan supported on strip footings, that suffered severe column damage in the longitudinal direction, yet minor damage in the transverse one. Detailed spectral and time-history analyses highlight the interplay of soil, foundation and superstructure in modifying seismic demand in the two orthogonal directions of the building. It is shown that soil-structure interaction may affect inelastic seismic response and alter the dynamic behavior even for relatively flexible systems such as the structure at hand.

Emerging issues and new frameworks for wind loading on structures in mixed climates

  • Solari, Giovanni
    • Wind and Structures
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    • v.19 no.3
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    • pp.295-320
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    • 2014
  • Starting from an overview on the research on thunderstorms in the last forty years, this paper provides a general discussion on some emerging issues and new frameworks for wind loading on structures in mixed climates. Omitting for sake of simplicity tropical cyclones and tornadoes, three main aspects are pointed out. The first concerns the separation and classification of different intense wind events into extra-tropical depressions, thunderstorms and gust fronts, with the aim of improving the interpretation of the phenomena of engineering interest, the probabilistic analysis of the maximum wind velocity, the determination of the wind-induced response and the safety format for structures. The second deals with the use of the response spectrum technique, not only as a potentially efficient tool for calculating the structural response to thunderstorms, but also as a mean for revisiting the whole wind-excited response in a more general and comprehensive framework. The third involves the statistical analysis of extreme wind velocities in mixed climates, pointing out some shortcomings of the approaches currently used for evaluating wind loading on structures and depicting a new scenario for a more rational scheme aiming to pursue structural safety. The paper is set in the spirit of mostly simplified analyses and mainly qualitative remarks, in order to capture the conceptual aspects of the problems dealt with and put on the table ideas open to discussion and further developments.

Comparisons and Analysis on Architectural Features of Seven Typical Traditional Dwellings in China

  • Tang, Si-Yi;Lee, Yeun-Sook
    • KIEAE Journal
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    • v.14 no.1
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    • pp.5-13
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    • 2014
  • The ancestors of China created various proper dwellings in the vast Chinese lands, according to distinct geographical environment, climate, and special local products. The purpose of this study is to compare features of 7 typical traditional Chinese dwellings in different areas from historical, geographical, structural and tinctorial aspects, in order to see what the differences are and rearrange them by these 4 different scales as estimate standards. By Comparing features between 7 traditional dwellings, advantages and disadvantages of them were found out. Not only natural terrain but also cultural mentality is an important factor that effected on the changes of regionality. The result showed that historical length in a certain extent reflected the differences between dwellings in different areas; there are more regular type dwellings in the northern China; dwellings in different structural material types following their regions; and, southern dwellings prefer natural and simple exterior colors. Also From construction aesthetics and culture perspective, Different cultures have cultivated and brought out different dwelling styles. Thus, protecting on traditional dwellings is of great necessities and this study will bring benefits in many aspects. For a further research, the result of this study can be utilized as the base data that suggest directions for effective Chinese residence planning in different areas meeting different demands.

The Structural Relationship between Physical Surroundings, Employee Service, Customer Emotion, and Service Loyalty -A Focus on Upscale Restaurants- (업스케일 레스토랑의 물리적 환경과 인적 서비스, 고객의 감정적 반응 및 서비스 충성도간의 구조적 관계)

  • Kim, Ju-Yeon;Lee, Young-Nam
    • Journal of the East Asian Society of Dietary Life
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    • v.17 no.5
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    • pp.753-763
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    • 2007
  • While the cognitive aspects of customer behavior have been a main subject of research, some researchers are now focusing on the emotional aspects. The influence of emotion on attitude and judgement has been accepted by many researchers, and most studies regarding emotion have focused on physical surroundings and emotional responses, based on Mehrabian & Russell's 1974 model. This study aimed to expand the scope of the model by including employee service. Here we examined the structural relationships between the physical surroundings and employee service of upscale restaurants, along with emotional response, and service loyalty. Physical surroundings and employee service were used as single factors, and we composed four different emotional responses: positive, negative, positive arousal, and negative arousal. While physical surroundings had impact on 'positive emotion' and 'positive arousal', Employee service had influence on 'negative emotion', and 'negative arousal' as well as 'positive emotion'. And 'positive emotion' and 'positive arousal' influenced service loyalty. Lastly, there was also a correlation between physical surroundings and employee service.

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