• Journal of the Korean Society of Clothing and Textiles
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• v.41 no.3
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• pp.527-536
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• 2017

This study investigated the detergency and functionality of laminating finished fabrics for outdoor wear based on repeated washing. Laminating finished fabrics were selected as the main fabrics for outdoor wear and used as test fabrics. The effects of outdoor exclusive detergent and normal neutral detergent were examined according to washing time, temperature, rpm and detergent concentration based on the use of a Terg-O-Tometer. Re-soiling of the test fabrics was measured by Florio-Mersereau. Permeability, water repellency, water resistance and absorbency were estimated to measure improvements and effects in regards to outdoor exclusive detergent in optimal washing conditions. The detergent effect of outdoor exclusive detergent was superior compared to normal neutral detergent. Re-soiling was lower with exclusive outdoor detergent than with normal neutral detergent. The measurement of functionality for laminating finished fabrics before and after washing indicated that functionality was decreased with repeated washing.

• Transactions of the Korean Society of Automotive Engineers
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• v.22 no.2
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• pp.115-122
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• 2014

Injection pressure is one of factors that influence part quality. In this paper, injection pressure was minimized by optimizing valve gate locations. In order to perform design optimization, MAPS-3DTM (Mold Analysis and Plastic Solution-3D) was used for injection mold analysis and PIAnOTM (Process Integration, Automation and Optimization) was used as process integration and design optimization. Also we adapted meta models based on design of experiments for efficiency. By using introduced methodology, we were able to obtain a result so that maximum injection pressure reduced by 28% compared to the initial design. And the validity of the proposed method could also be demonstrated.

• Transactions of the Korean Society for Noise and Vibration Engineering
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• v.17 no.9
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• pp.853-861
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• 2007

Currently, automotive industries improve the vehicle performance and reduce the development period of vehicle using each module part for the high quality and performance of vehicles. However each component part doesn't generate the noise and vibration problems, sometime these problems are generated on the assembly status between vehicle chassis frame and each module part. On this study, in order to analysis the dynamic characteristics of a shield door module that is a typical module part of vehicles, the acquisition and evaluation process about the vibration and noise of shield door module is developed. Also the possibility to apply to shield door module of the developed process is verified by the comparison with the dynamic characteristics between plastic and steel module plate.

• Transactions of the Korean Society for Noise and Vibration Engineering
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• v.23 no.1
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• pp.73-83
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• 2013

In previous works, psychoacoustic parameters have been used for objective quantification. However, these parameters do not agree well with subjective assessment. Therefore, the correlation between psychoacoustic parameters and the subjective rating of door closing sounds of sampled cars is low, and it is not sufficient to use psychoacoustic parameters as an objective metric to quantify the sound quality of door closing sounds. In this paper, a new method is proposed to objectively quantify the sound quality based on physiological acoustics and statistical signal processing. The gammatone filter, as a pre-processing, is used in models of the auditory system and kurtosis, which is the fourth-order moment of temporal signal, and is used to extract information about sound quality quantification for door closing sounds. The new metric obtained through the proposed method is highly correlated with subjective rating, and it is successfully applied to the quantification of the sound quality of door closing sounds.

• Journal of Fashion Business
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• v.16 no.4
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• pp.1-12
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• 2012

This study made an analysis on the relation and influence between outdoor wear benefit, clothing selection criteria and purchasing satisfaction. Survey was conducted targeting 20s-30s males and females who have experience of purchasing outdoor wear and 335 sheets of questionnaire were used for final analysis. And statistics package SPSS16.0 was used for analysis of collected materials. A group seeking the trendy brand turned out to give considerable thought to the brand and trend and purchase less than 100,000won at the discount outlet. A group pursuing functional practicality puts an emphasis on the activity and use, and purchases at the internet shopping mall or department store. Regarding material, function, design, style and color as important, a group pursuing individuality and appearance turned out to purchase clothing at various places such as discount outlet, specialty store and internet. A group that is indifferent to clothing appeared not to care about specific elements when selecting outdoor wear. The result of study showed that consumers of outdoor wear show purchasing satisfaction in respect of design, style, color or trend.

• Fashion & Textile Research Journal
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• v.19 no.1
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• pp.19-29
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• 2017

This study identified the purchase decision-making process of outdoor wear consumers and examined the hypothesis that consumer satisfaction mediates the relationship between purchase decision-making process and repurchase intention. Data were acquired from a survey and analyzed with descriptive, factor analysis, reliability analysis and multiple regression analysis. Respondents were 454 adults who have purchased outdoor wear. The results are as follows. First, the purchase decision-making processes of outdoor wear consumers consisted of a series of steps: need recognition & passive information search, active information search, evaluation of alternatives with practical attributes, evaluation of alternatives with unpractical attributes, purchase decision, and post-purchase evaluation. Second, four purchase decision-making processes (except for need recognition & passive information search and active information search) had significantly positive effects on consumer satisfaction. Third, the need recognition & passive information search, the evaluation of alternatives with unpractical attributes and post-purchase evaluation had significantly positive effects on repurchase intention. Lastly, the partial mediation of consumer satisfaction in the relationship between two purchase decision-making processes (evaluation of alternatives with unpractical attributes and post-purchase evaluation) and repurchase intention were indicated. This academic study will help to understand the purchase decision-making processes of outdoor wear and allow companies to obtain information (from the industrial aspect) about which process to invest in and how to manage the process.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2006.05a
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• pp.782-785
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• 2006

The Power Flow Analysis(PFA) can be effectively used to predict structural vibration in medium-to-high frequency range. In this paper, Power Flow Finite Element Method (PFFEM) based on PFA has been used to predict the vibration of an automobile door. The predicted results for the frequency response function of the door have been compared with corresponding experimental results. In the experiment, the automobile door has been divided into several subsystems and the loss factor of each subsystem has been measured. The input mobility at a source point has been also measured. The data for the loss factors and the input mobility have been used as the input data to predict the vibration of the automobile door with PFFEM. The frequency response functions have been measured over the surface of the door. The comparison between the experimental results and the predicted results for the frequency response functions showed that PFFEM could be an effective tool to predict the structural vibration.

• Journal of the Korean Society of Clothing and Textiles
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• v.35 no.3
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• pp.243-253
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• 2011

The outdoor sportswear market in Korea has received increased attention due to the interest in health and leisure activities promoted through the well-being trend. This study examines the merchandising process for outdoor sportswear brands and focuses on textile planning in order to identity the opportunities for Korean textile companies. Data were collected through an interview method of nine outdoor leading brands (six national brands and three license brands). The interviewees were merchandisers with two to nine years of career experience in the company. The majority of interviewed brands implemented a merchandising plan twice a year. Basic goods took 80% and reorder or spot goods took 10-20% of the total quantity, which possessed a substantial possibility to substitute imported textiles for Korean ones. After the 2008 global economic crisis, outdoor brands have increased the quantity of Korean textiles up to 70% of the total amount of sales because of low price per quality, lead-time accuracy, convenience for handling, and communication. The most important factors when selecting materials were functionality, quality, design, price, and lead-time for orders. The managerial implications for Korean textile companies were also discussed.

• Journal of Fashion Business
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• v.15 no.4
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• pp.167-181
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• 2011

This study had researched purchase trend and preference of jacket design in order to develop a prototype of an outdoor wear jacket that can be worn for a light outdoor activity targeting middle-aged men and women. An outdoor wear was purchased mostly in a permanent discount store and functionality such as activity and material was considered as important in addition to design. There was difference in ages for the jacket style, but in general, people preferred a wind protection jacket and men preferred black colors and women preferred red colors. For the design of jacket, both men and women had preferred a jacket that has moderate fitness with detachable hat and a zipper, and it was applied to the prototype. The jacket had applied different color in the armhole line that is connected to sleeve in order to make waist look slimmer and stretchable material was used to improve functionality in the armpit part.

• Journal of the Korean Society for Railway
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• v.11 no.3
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• pp.240-247
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• 2008

Recently, railway corporations have built maintenance information systems and collected failure and maintenance data. For example Seoul Metropolitan Rapid Transit Corporation (SMRT) built the Electric Motor Unit-Information System (EMU-IS) which is the first maintenance information system in Korea. It has been operated from August, 2000. This paper deals with a case study on determining maintenance interval through reliability analysis using EMU-IS fault data. Door system is considered for the case study in which reliability is evaluated for operating time and distance and the overhaul interval is determined.