• Fashion & Textile Research Journal
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• v.11 no.3
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• pp.453-459
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• 2009

The purpose of this study was to provide the basic knowledge to determine the proper seam finish according to the design of sewing products. Four seam finishes(no seam finishes, over-edged seam finishes, turned-and-stitched seam finishes, and bias-bound seam finishes) were constructed with seams in warp, weft and bias directions of the fabric. Using a drape measurement system involving two 18cm diameter supporting disks and a digital camera, the images of draped specimens were captured and processed. Drape behavior was evaluated in terms of drape coefficient, node number, and drape profile. Drape coefficients of the fabrics increased with seam formation and varied by the seam finishes, however no significant differences in drape coefficients by the seam finishes were observed on the heavier fabric. Node numbers of heavier fabric were more deeply affected by the seam finishes than those of lighter fabric. The specimens with turned-and-stitched seam finishes and bias-bound seam finishes showed significantly smaller node numbers compared to the specimens with no seam finishes and over-edged seam finishes on heavier fabric. The length of the seamed part showed positive correlation with the weight of the specimens and negative correlation with the number of nodes in each seam direction. The maximum length of all draped specimens was found in the same direction as the seam direction. In the case of the lighter fabric, the seam and the seam finish had a great influence on the shape of the draped profile.

• Fashion & Textile Research Journal
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• v.13 no.3
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• pp.418-424
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• 2011

The purpose of this study was to reveal the effects of the seam type on the fabric drape to provide the basic knowledge for proper seam type according to the design of sewing products. Seven kinds of specimens were constructed with seam (no seam, welt seam with over-edged finish, welt seam with bias bound finish, plain seam with over-edged finish, plain seam with bias bound finish, french seam, and flat fell seam) in wrap direction of the fabric. Using a drape measurement system involving two 18 cm diameter supporting disks, and a digital camera, the images of draped specimens were captured and processed. Drape behavior was evaluated in terms of drape coefficient, node number, and drape profile. Significant differences were found in drape coefficient by the seam types. The specimens with french seam and flat fell seam showed higher drape coefficients compared to those with welt seam and plain seam. Node numbers in the drape profiles showed positive correlation with the weight of the specimens, however, no significant differences were observed in node numbers by the seam types. Significant differences were found in the length of the seamed part by the seam types. The specimens with french seam and flat fell seam showed longer length of the seamed part compared to those with welt seam and plain seam. The ratio of the maximum length in the seam direction to the maximum length perpendicular to the seam direction showed significant differences by the seam types.

• Journal of Fashion Business
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• v.18 no.5
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• pp.159-170
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• 2014

Recent concerns about the PFOA(perfluorooctanoic acid), have been increasing, which is generally applied in the water-repellent finishing process of textile products. It has been proven through animal testing to be harmful to humans, as possible carcinogens and neuro-toxic material. Thus U. S. Environmental Agency has gone as far as requiring the material to be eliminated in its entirety by 2015. As a viable alternative to this water-repellent finishing agent, the development of C6 product is gaining its popularity. The effects of PFOA finishing on the silk fabrics were examined, and we reviewed parameters of the needed process for optimizing appearance and functionality of silk fabrics treated with eco-friendly water-repellent finishing agent. Cross-linking agent affected the most on black color of reactive ink, among the physical properties. The contact angle reading was the highest in $8g/{\ell}$ of concentration for all fabrics. All the fabric specimens, subjected to the DTP and water repellent finishing, exhibited higher stiffness, where rayon specimen showed the highest, compared to the untreated specimens. The results may provide basic information leading to the development of value-added silk fabrics with water-repellency without excessive deterioration of the delicate appearance and inherent soft touch.

• Science of Emotion and Sensibility
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• v.8 no.3
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• pp.231-240
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• 2005

The social participation and economic position of the woman come to be high, they are rising to the market as a core consumer and trend inventor leading the fashion. So that, we have to recognize the woman with one axis of product development, it is necessary to the product development and the strategy which it will put woman oriented sensibility in product design. From this research, it reviews the backgrounds from social culture and the economic marketing sides through the digital product recently, it analyzed the features of woman characteristic designs which is embossed the product. Also it connected actual product development, it developed a woman oriented sensibility audio which reflected a woman's consuming trend, life style and the preference product style. It proposed the necessity of woman oriented product development ultimately and researched the product design strategy for the reflection of woman sensibility.

• Journal of KSNVE
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• v.11 no.1
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• pp.147-155
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• 2001

This paper is concerned with the real-time automatic tuning of the multi-input multi-output positive position feedback controllers for smart structures by the genetic algorithms. The genetic algorithms have proven its effectiveness in searching optimal design parameters without falling into local minimums thus rendering globally optimal solutions. The previous real-time algorithm that tunes a single control parameter is extended to tune more parameters of the MIMO PPF controller. We employ the MIMO PPF controller since it can enhance the damping value of a target mode without affecting other modes if tuned properly. Hence, the traditional positive position feedback controller can be used in adaptive fashion in real time. The final form of the MIMO PPF controller results in the centralized control, thus it involves many parameters. The bounds of the control Parameters are estimated from the theoretical model to guarantee the stability. As in the previous research, the digital MIMO PPF control law is downloaded to the DSP chip and a main program, which runs genetic algorithms in real time, updates the parameters of the controller in real time. The experimental frequency response results show that the MIMO PPF controller tuned by GA gives better performance than the theoretically designed PPF. The time response also shows that the GA tuned MIMO PPF controller can suppress vibrations very well.

• Journal of Digital Convergence
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• v.19 no.11
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• pp.267-278
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• 2021

This study differentiated it from previous studies by selecting Chinese lifestyle shops in the current situation where lifestyle shops are rapidly emerging due to the increase in single-person households in China and changes in consumption patterns. The purpose of this study is to present basic data for establishing VMD strategies for domestic lifestyle shops wishing to enter China through the analysis of the characteristics of VMD elements. The results of this study are as follows.The research results are as follows. In the display elements of the VMD of Chinese lifestyle shops-GAROSU, CH'IN, and Nome, the appliances and props used differentiated shapes and materials according to the product concept and design. There seemed to be a difference depending on the concept of the lifestyle shop. Also, there were differences in the form of VP and the presentation method of PP and IP in VP, PP, and IP according to the store product group and the amount of products displayed in the presentation element. In a follow-up study, it is considered meaningful to conduct a study on domestic lifestyle shops and a comparative analysis of VMD between Chinese and domestic lifestyle shops.

• Journal of the Korean Society of Clothing and Textiles
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• v.34 no.10
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• pp.1596-1610
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• 2010

This study investigates the studies of development of apparel basic pattern published in domestic journals and the trends in related studies. It also provides basic information on directions for future studies. The data was collected from the theses of domestic journals of the Korean Studies Information (KSI) which were published until December 31, 2009 and retrieved by a keyword related to the design of basic apparel patterns. The data was classified by the journals, the year of publication, research themes, research subjects, and research methods. They were analyzed to find out the overall distribution status and characteristics by time. The number of theses for the analysis was 73 published in 11 Journals total. Reviewing the theses by dividing the times into 7 Chronicles of 5 years in each term since the first thesis was published in 1968, it was found that more active research had been done as time went by. The theme of the theses in most cases was the composition of western apparel. As for items, most cases were on the study of bodice torso basic patterns. Since the period of 5-6 Chronicles, studies in the pattern of underwear, jacket, shirts blouse have gradually increased and the development of patterns using elastic materials are increasing as well. Women were dominant in the studies as subjects and so were young people of both sexes. Unlike the studies in earlier times that focused on the average figure, studies on developing patterns for various figure types have been made since the 5-6 Chronicles. However, there were limited studies on the figures of infants, male youth, seniors, and obese males. As for the research methods, there were common processes for validity testing of patterns through the measurement of the human figure, survey of customers and companies, designing pilot patterns, and wearing trials. The studies showed characteristic the differences in research methods according to the period.

• Journal of the Korean Society of Costume
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• v.58 no.7
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• pp.43-59
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• 2008

This study aims to improve the uniform functionality of the workers who work in Electric Technology Division, Korea Railroad Corporation. Former study of questionnaire survey was taken to examine the current state of wearing working clothes for the workers. Based on the results of the former study, an experimental clothes, the functionality of which has improved in terms of design, materials, and patterns, was created, and existing working clothes and the treated experimental clothes were compared through simulation wearing evaluation comprising appearance, activity adaptability, quantitativeness, and on-site adaptability evaluation comprising appearance and activity adaptability. The followings are the results of the study: Simulation wearing evaluation is composed of 5subjects and 11experts specializing in costume, and as a result of evaluation the experimental clothes were evaluated superior to the existing working clothes in all items. On-site adaptability evaluation was conducted by workers in the Electric Technology Division, who are the subjects in this study. In that evaluation, the experimental clothes were also evaluated superior to the existing working clothes in all items. While the five subjects who participated in the simulation wearing evaluation move, the quantitative evaluation measured the distance of location transfer of the back length in the jacket and the distance of location transfer of the back waist in the trousers. As the distances in the experimental clothes were measured shorter than the distances in the existing working clothes, the subjective evaluation results are objectively supported.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.48 no.10
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• pp.67-71
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• 2011

Existing face detection systems, which are used for digital door locks, digital cameras, video surveillance systems, and so on, are software-based implementation for relatively low level resolution images. Therefore, in this case, there are difficulties in detecting faces in a real-time fashion due to the increasing amount of operational processing as well as in allowing the requirements of face detections for HD(High Definition) resolutions. A hardware approach is necessary to efficiently find faces for HD images in real-time embedded systems. This paper proposes and implements a hardware architecture for an LBP(Local Binary Pattern) operation which is a time-consuming part as one of preprocessing steps for face detection. The hardware architecture proposed in this research has been implemented and tested with a FPGA(Field Programmable Gate Array) chip, and shown that the approach guarantees efficient face detection for HD images.

• Journal of Digital Convergence
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• v.14 no.7
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• pp.83-91
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• 2016

The purpose of this study is to analyze the difference of environmental consciousness and its influence on the eco-friendly products purchase intention by the undergraduates' lifestyle patterns. The results of this analysis are as follows. First, the health orientation lifestyle of the undergraduates showed the high significant level to both cognition of environmental performance and environmental protection. However, both self pursuit and positive action lifestyle showing the low significant level were rejected. Second, the high environmental protection lifestyle of the undergraduates showed high significant level. This study shows that the health orientation lifestyle undergraduates are high environmental consciousness, and also they show high purchase intention of eco-friendly products.