• Proceedings of the Korean Magnetic Resonance Society Conference
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• 2002.01a
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• pp.12-12
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• 2002

• Journal of the Korea Fashion and Costume Design Association
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• v.19 no.4
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• pp.1-15
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• 2017

The aim of this study is to plan a design that satisfies consumer needs by forecasting future properties following changes of gauge in basic Jacquard structure and to provide helpful data for a variety of knit-wear development. Four basic Jacquard knit samples (Normal Jacquard, Bird's eye Jacquard, Floating Jacquard, Tubular Jacquard) were selected and projected by using three types of gauges (7G, 12G, 14G) with an SES-122S type Computer Knitting machine of Shimaseiki MFG. Twelve different types of samples with Jacquards and gauges were tested on a flat table by measuring the course and wale in a 1cm area to calculate the gauge of samples. The mechanical properties of 12 types of Jacquard samples were measured using KES-FB (Kawabata Evaluation System for Fabric, Kata Tech Co. Ltd). As the result of comparing the number of patterns, courses and wales depending on the change of gauge of the basic Jacquard structure, it was observed that the number of patterns per specific length, course and wale has increased from 7G to 14G, a high-gauge. According to objective research regarding Jacquard structure, 7G Tubular Jacquard, which is low gauge, seems to be suitable for masculine design as it is heavy and thick, and has rigid and rough texture due to a high level of flexural strength and shear property. 14G Floating Jacquard, which is high gauge, seems to be suitable for feminine, silhouette design as it is light, thin, soft, flexible and has high drape. The result of this study provides a theoretical foundation for knit-wear development considering basic Jacquard structure and gauge-specific properties. This study can be used to provided directions for the development of knit industry.

• Proceedings of the Korea Concrete Institute Conference
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• 2000.10a
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• pp.31-45
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• 2000

Because of the high unit cement content in the concrete mix, major concrete temperature rises are observed in the initial stages of hardening in structural members with large cross-sections made of high-strength concrete. While this temperature rise in the initial stages of hardening contributes to the initial development of the concrete strength, it also causes thermal cracking and obstructs medium to long-term increases of the concrete strength. In the study reports below, investigations were made on the effects of the concrete temperature rise in the initial stages of hardening on the medium to long-term development of the strength of structural concrete between the ages of 28 and 91 days. In the study, comparisons were made, for example, between the compressive strength of a control specimen subjected to standard curing at 28 days and the compressive strength of core specimens taken from structural members, and observations were made on the methods of evaluating the concrete strength in structure, defined here as the compressive strength of core specimens at 91 days. The results obtained indicate that, when the maximum temperature of the concrete is the structure does not exceed $60^{\circ}C$, the concrete strength in structure at the age of long-term will generally be greater than the compressive strength of the standard-curing specimens at 28 days, allowing one to evaluate the strength of the structural concrete in terms of the compressive strength of the 28-days standard-curing specimens. When, on the other hand, the maximum temperature of the concrete in the structure exceeds $60^{\circ}C$, the strength in concrete structure may be smaller than the compressive strength of the 28-days standard-curing specimens, creating risks in the evaluation of the concrete strength in structure by latter.

• Bulletin of the Korean Chemical Society
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• v.15 no.11
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• pp.928-930
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• 1994

• Coupled systems mechanics
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• v.5 no.2
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• pp.145-156
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• 2016

An efficient and general numerical strategy for fluid-structure interaction problems is presented where either the fluid or the structure part are represented by nonlinear models. This partitioned strategy is implemented under the form of code coupling that allows to (re)-use previous made developments in a more general multi-physics context. This strategy and its numerical implementation is verified on classical fluid-structure interaction benchmarks, and then applied to the impact of tsunamis waves on submerged structures.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.25 no.7
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• pp.709-720
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• 2014

In this paper, we studied miniaturization of LPDA(Log-Periodic Dipole Array) antenna used for VHF and UHF bands. To miniaturize the LPDA antenna, in this study, the radiation elements in a low frequency were changed into a triangular meander structure which has small current cancelation effect at feed part. For the triangular meander structure, an isosceles triangular and right triangular meander structures were proposed and the LPDA antennas were miniaturized by using the two meander structures. Also, the simulated and measured results were compared for the two miniaturized LPDA antennas. As a result, the isosceles triangular meander and right angle triangular meander structure applied LPDA antennas were reduced up to 60.5 % and 72.4 % compared a basic LPDA antenna, respectively. Consequently, we confirmed that the triangular meander structure is suitable for miniaturization of a LPDA antenna.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 2008.04a
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• pp.100-103
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• 2008

Recently Development of construction system that subjective operators share and control information efficiently based on the three-dimensional space and design information throughout life cycle of construction project is progressing dynamically. In case of civil structures which are infrastructure, Demand for structure of complex system which has multi-functions such as super and smart bridges and express rails is increasing and system development which computerizes and integrates process of structure design is in need. For that, research about link way between three dimensional modeling data and structure analysis programs should be preceded. In this research, therefore, research about interface design between three dimensional virtual modeling data to automate efficient civil-structure-design and nonlinear finite element analysis program which is made up of reinforced concrete material model that express material's character clearly.

• Proceedings of the Korea Contents Association Conference
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• 2006.11a
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• pp.213-217
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• 2006

4 panels Comic Strips spreads it's story with introduction, development, turn and conclusion. The structure of introduction, development, turn and conclusion adds to the fun of story through the envelopment of deduction, induction so in the work the narrative structure is unfolded so many evolutions in order to communicating with further effective and funny. Therefore the study is mostly mended deduction, induction unfolding on the 4 panels comic strips. The purpose of this study is based on search for formation of the story and comparison of humor comic strips and satire comic strips through analysis of the narrative structure on 4 panels comic strips in internal and external.

• Journal of the Korean Society of Systems Engineering
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• v.13 no.1
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• pp.67-72
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• 2017

Work breakdown structure is a central element in project management and systems engineering. Composing a quality work breakdown structure is essential for the success of any project. In this paper, extensive use of work breakdown structure during phase one of KSLV-II launch vehicle development program is presented. The advantages and disadvantages of applying WBS-centric program and systems engineering management to the project are reviewed.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2012.04a
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• pp.354-359
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• 2012

Improvement of structure-borne noises in the vehicle compartments has been one of the primary concerns in the development of vehicles. The booming is an annoying low frequency interior noise and vibration in vehicle. But it is difficult to reduce the structure-born booming noise in traditional method - trial and error within the shorten development schedule. So in present, the structure dynamic modification (SDM) method helpful to predict the effect of the local mass, stiffness, and damping is introduced. So in order to reduce the interior booming noise, the SDM was performed, and verified with modal test result. It was shown that the interior booming noise was reduced as predicted.