• Journal of the Earthquake Engineering Society of Korea
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• v.28 no.4
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• pp.193-203
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• 2024

Existing reinforced concrete (RC) building frames constructed before the seismic design was applied have seismically deficient structural details, and buildings with such structural details show brittle behavior that is destroyed early due to low shear performance. Various reinforcement systems, such as fiber-reinforced polymer (FRP) jacketing systems, are being studied to reinforce the seismically deficient RC frames. Due to the step-by-step modeling and interpretation process, existing seismic performance assessment and reinforcement design of buildings consume an enormous amount of workforce and time. Various machine learning (ML) models were developed using input and output datasets for seismic loads and reinforcement details built through the finite element (FE) model developed in previous studies to overcome these shortcomings. To assess the performance of the seismic performance prediction models developed in this study, the mean squared error (MSE), R-square (R²), and residual of each model were compared. Overall, the applied ML was found to rapidly and effectively predict the seismic performance of buildings according to changes in load and reinforcement details without overfitting. In addition, the best-fit model for each seismic performance class was selected by analyzing the performance by class of the ML models.

• Journal of the Korean Society of Costume
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• v.55 no.6 s.96
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• pp.82-96
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• 2005

This study focuses on the bag design as a creative design resource rather than on typical bag design as shown in previous research. 1'he purpose of this study is to develop creative and harmonious upper garments in good combination of bags and the sides of clothing. This study was performed with female college students whose age are front 18 to 24. The results of this study are as follows. First, bags are ideal for creative fashion in respect that they reflect modern trend. Second, ornamental materials such as string, chain, and buckle, which used to be details of clothing, are useful to present the characteristics of bags more effectively. This result has shown that details of bags are important determinant of entire fashion details. Third, it expands the sphere of expression of the bag, so the possibility of expansion to a distinguished expression of fashion design is recognized. From the study, we understood the structural characteristics and changes of detail of bags, proposing that the bags take important part in fashion design developments.

• Earthquakes and Structures
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• v.5 no.2
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• pp.143-160
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• 2013

This paper presents the results of an experimental program concerning the efficiency of a specific strengthening technique which utilizes a small steel link element connected to the R/C frame through bracing elements. Brittle types of failure, especially at the connections between steel and concrete elements, can be avoided by appropriate design of the local details. Five single storey one bay R/C frames scaled 1:3 were constructed according to older codes with substandard details. The first one was a typical bare reference frame. The other four were identical to the first one, strengthened by steel bracing elements. The behavior of the strengthened frames is described with respect to the reference bare frame. The concrete frames were constructed according to older code provisions by the use of smooth steel bars, low strength concrete, sparsely spaced stirrups and substandard details. The strengthening scheme aimed to the increase of both strength and deformation capacity of the original R/C frame. The inelastic deformations are purposely concentrated to a short steel link element connecting the steel bracing to the R/C frame. The results show that the steel link element can increase considerably the strength and the energy dissipation capacity of the frame.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.14 no.9
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• pp.3745-3761
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• 2020

Low-rank representation methods already achieve many applications in the image reconstruction. However, for high-gradient image patches with rich texture details and strong edge information, it is difficult to find sufficient similar patches. Existing low-rank representation methods usually destroy image critical details and fail to preserve edge structure. In order to promote the performance, a new representation-based image super-resolution reconstruction method is proposed, which combines gradient domain guided image filter with the structure-constrained low-rank representation so as to enhance image details as well as reveal the intrinsic structure of an input image. Firstly, we extract the gradient domain guided filter of each atom in high resolution dictionary in order to acquire high-frequency prior information. Secondly, this prior information is taken as a structure constraint and introduced into the low-rank representation framework to develop a new model so as to maintain the edges of reconstructed image. Thirdly, the approximate optimal solution of the model is solved through alternating direction method of multipliers. After that, experiments are performed and results show that the proposed algorithm has higher performances than conventional state-of-the-art algorithms in both quantitative and qualitative aspects.

• Computers and Concrete
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• v.22 no.4
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• pp.383-393
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• 2018

Infill wall strengthening method has been widely used for seismic strengthening of deteriorated reinforced concrete (RC) frame structures with non-seismic details. Although such infill wall method can ensure sufficient lateral strengths of RC frame structures deteriorated in seismic performances with a low constructional cost, it generally requires quite cumbersome construction works due to its complex connection details between an infill wall and existing RC frame. In this study, an advanced seismic strengthening method using externally-anchored precast wall panels (EPCW) was developed to overcome the disadvantage inherent in the existing infill wall strengthening method. A total of four RC frame specimens were carefully designed and fabricated. Cyclic loading tests were then conducted to examine seismic performances of RC frame specimens strengthened using the EPCW method. Two specimens were fully strengthened using stocky precast wall panels with different connection details while one specimen was strengthened only in column perimeter with slender precast wall panels. Test results showed that the strength, stiffness, and energy dissipation capacity of RC frame specimens strengthened by EPCWs were improved compared to control frame specimens without strengthening.

• Journal of the Korean Society of Clothing and Textiles
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• v.42 no.2
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• pp.251-268
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• 2018

This study suggests a fashion design using aesthetic characteristics of works by Kate MccGwire, a modern sculptor paying attention to soft sculpture materials such as feathers. In this research on MccGwire works, their internal meanings may be derived as the dualism of familiarity, movement and consciousness. Works also have aesthetic characteristics of overlapping, fluidity and twist. Using such characteristics, 4 one piece dresses and 2 vest dresses were made. Research findings are as follows. First, aesthetic characteristics of MccGwire works could be expanded into expressive areas of silhouettes and details in fashion. Second, visual flow and concentration could be expressed by gradual coloration of feather colors. Third, dart manipulation could be applied naturally by details and curve silhouettes of fashion design. Fourth, touch of feather material could be expressed fully by leaving the edge of garments raw. Fifth, spatiality of fashion could be implemented partially by applying decorative saddle stitching to costume design details. This study explored a potential of soft sculpture occurred during a transitional process of objet pursued by 20th century's avant-garde artists applicable to fashion design ideas that suggested methods for contemporary creative design.

• Journal of the Korea Institute of Building Construction
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• v.8 no.1
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• pp.83-90
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• 2008

The reinforcing steel process is composed of the development of placing drawing, cutting and bending, and the placement and fabrication of the reinforcement, and is participated in by reinforcement detailer, the fabricator and placer. Because the reinforcing steel process-from estimating and rebar detailing, to production, material tracking, billing, and general accounting-is conducted by many participant, reinforcement details based on building code and reinforcing bar detailing standards are essential. The process, however, holds some problems. Building code has been revised recently, and the utilization of placing drawings was proved to be low, and the reinforcement estimating in early stage of the process is below what is required for placement. Therefore, in this study, a survey was conducted to the reinforcement detailer, the fabricator and placer of domestic construction industry. According to the analysis of the survey, the reinforcement details on site was not standardized. The improvement in reinforcing steel detailing standards was sought by analyzing the results of the survey including reinforcement constructability.

• Journal of Fashion Business
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• v.8 no.1
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• pp.91-106
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• 2004

This study focuses on the sportism expressed in the modern fashion. Many factors attribute to the advent of sportism such as rapid development and cultural changes toward sports, increase in leisure time, new fashion materials resulting from new technologies, youth culture and postmodernism. Designers gazing into the future are inspired by the details and functionality of clothing for snow boarding, skiing, rock-climbing and fitness. While the sportswear is the term whith stemmed from the need for functionally in sports, the Sportism is the style inspired by the formative elements, that is, the details, the silhouette, and the colors of the sportswear. New technologies for sports, the powerful influence of youthful culture, and the celebritizations of the sports stars made the sports look more popular. It can be categorized into three aesthetic values, i.e., the functional sportism, the street sportism, and the futuristic sportism. The functional sportism is expressed with the details of function, simplicity, and no useless ornament, the street sportism with fun, androgynous and unisex mode and the image of hip-hop look and traditional look, the futuristic sportism with new high tech fabrics and cyber style. The characters of these are a sence of unisex, sensualness, ostentation, renovation.

• Journal of Biomedical Engineering Research
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• v.25 no.4
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• pp.277-282
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• 2004

In order to investigate the small female occupant behavior and accompanying injury mechanisms in vehicular trash event, a finite element model of $5^{th}$ percentile female has been developed. The model consists of articulated rigid body, which represents the morphology of small female body, and internal components with anatomical details. Articulated rigid body model serves as a basic platform for joining the detail internal skeletons and organs, while itself can be used for representing the overall kinematics of small female occupant. The modeling details such as anthropometry and finite element structure as well as validation results for the articulated rigid body model are introduced in this paper. The second part of the modeling, i.e. the internal components with anatomical details of small female are presented in subsequent part II of the paper.

• 제어로봇시스템학회:학술대회논문집
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• 1993.10a
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• pp.1129-1135
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• 1993

For successful implementation of robotic painting system, a structured design and analysis procedure is necessary. In designing robotic system, both functional and economical feasibility should be investigated. As the robotization is complicated task involving implementation details(such as robot selection, accessory design, and spatial layout) together with operation details, a computerized method should be sought. However, any conventional robotic design system and off-line programming system cannot accomodate such a need. In this research, we develop an interactive design support system for robotization of a cycle painting line. With the developed system called SPRPL(Simulation Package for Robotic Painting Line) users can design the painting objects(via FRAME module), select robot model (ROBOT), design the part hanger (FEEDER), and arrange the workcell. After motion programming (MOTION), the design is evaluated in terms of: a) workspace analysis, b) coating thickness analysis, and c) cycle time (ANALYSIS). By iterative design and evaluation procedure, a feasible and efficient robotic design can be attained. As the developed system has motion planning and analysis features, it can be also used as an off-line robot programming system in operation stage. Including the details of each module, this paper also presents a case study made for an actual painting line.