• Journal of Institute of Control, Robotics and Systems
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• v.22 no.4
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• pp.307-314
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• 2016

Recently, demands on the tapping machine are increased due to the case of a cell phone is changed to metal such as aluminum. The automatic tool changer (ATC) is one of the most important devices for the tapping machine related to the speed and energy consumption of the machine. To reduce the consumed energy and vibration, the dynamic modeling is essential for the ATC. In this paper, inverse dynamic modeling of a novel ATC mechanism is introduced. The proposed ATC mechanism is composed of a double four-bar mechanism with a circular tablet to generate continuous rotation of the tablet. The dynamic modeling is performed based on the Lagrange equation with a modeling for the contact between the four-bar and the tablet. Simulation results for various working conditions are proposed and analyzed for the prototype design. The dynamic modeling can be applied to determine the proper actuator and to reduce the vibration and consumed energy for the ATC machine.

• The Research Journal of the Costume Culture
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• v.29 no.1
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• pp.65-86
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• 2021

This study aims to develop a hanbok design method in response to recent changes in consumption trends that emphasize new aesthetic and cultural values, which contrast with the existing cultural order and repetitive normative styles in fashion designing. With this in mind, our study explores the main features of deconstruction fashion design as a theoretical guide for developing a methodology for deconstruction hanbok design, on the basis of which new, experimental and creative hanbok design works can be produced. To do this, we first investigate current trends in hanbok design and changing concepts of Korean fashion design through literature review of previous studies. Secondly, we explore deconstructionism and analyze its features to lay down the foundation for a post-modern approach in hanbok design. As the result of analysis, the main features of deconstruction fashion design are summarized as the following: 1) non-finishing, 2) decomposing and recomposing, 3) recycling, 4) transparent, 5) grunge, 6) flattening, and 7) exaggeration. Based on the identified core features of deconstruction fashion design, we develop a creative method of hanbok design in the context of modern Korean fashion design. Finally, we show five design outputs via a 3D digital fashion design process using the CLO3D software program.

• Journal of Fashion Business
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• v.27 no.5
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• pp.78-92
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• 2023

Fashion trends are actively disseminated through social media, which influences both their propagation and consumption. This study explored how users perceive subversive basic fashion in social media videos, by examining the associated concepts and characteristics. In addition, the factors contributing to the style's social media dissemination were identified and its distinctive features were analyzed. Through text mining analysis, 80 keywords were selected for semantic network and CONCOR analysis. TF-IDF and N-gram results indicate that subversive basic fashion involves transformative design techniques such as cutting or layering garments, emphasizing the body with thin fabrics, and creating bold visual effects. Topic modeling suggests that this fashion forms a subculture that resists mainstream norms, seeking individuality by creatively transforming the existing garments. CONCOR analysis categorized the style into six groups: forward-thinking unconventional fashion, bold and unique style, creative reworking, item utilization and combination, pursuit of easy and convenient fashion, and contemporary sensibility. Consumer actions, linked to social media, were shown to involve easily transforming and pursuing personalized styles. Furthermore, creating new styles through the existing clothing is seen as an economic and creative activity that fosters network formation and interaction. This study is significant as it addresses language expression limitations and subjectivity issues in fashion image analysis, revealing factors contributing to content reproduction through user-perceived design concepts and social media-conveyed fashion characteristics.

• Journal of the Korean Society of Costume
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• v.58 no.3
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• pp.93-104
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• 2008

The purposes of this study are to examine the concept of customized fashion product design as a new industrial paradigm reflecting individual customers' needs in modern society, and to grasp its sociocultural meaning. It is thought that this study will be helpful to investigate the cultural thinking of contemporaries represented through the consumption. For this, the documentary study and practical case study have been executed. As modern fashion business becomes more consumer-oriented due to the industrial paradigm shift, there appeared the prosumer as both consumer and producer. The type of customized fashion product design can be classified as 1) the traditional custom-made design in haute couture and classic tailoring 2) the tailor-made design in the prestige line of ready to wear 3) DIY custom design 4) mass customized design of customer involvement. The traditional custom-made design in haute couture and classic tailoring and the tailor-made design in the prestige line of ready to wear is to provide the distinguished product which has the best quality as well as the excellent beauty for VIP consumer. The DIY custom design is for creative consumer searching for the fun of craftsmanship to take part in producing personally. The mass customized design of customer involvement is to personalize product by selecting design module in mass production. Ultimately the sociocultural meaning of the customized fashion product design can be interpreted as (1)endowing special meaning to personal identity (2)distinguishing the privilege by rarefied authenticity (3)returning to analog sensibility 4)pursuing creative fun 5)thinking in a user-centered way.

• Journal of the Korean Society of Costume
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• v.66 no.5
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• pp.99-112
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• 2016

The purpose of this study is to examine the higher value-added characteristics of tailored jacket designs, which are major items of French luxury brands, in an effort to raise the competitiveness of domestic fashion designs. The characteristics of the jacket designs from the 1940s to the 1970s, the golden age of Haute Couture, were examined. Based on this, the characteristics of the higher value-added expressions of the luxury brands were established by analyzing the tailored jacket designs that appeared in the Paris collection after 2010. The results are as follows: the characteristics were categorized into 'traditional value expression,' 'conceptual value expression,' 'retro value expression,' and 'creative value expression.' Traditional value was expressed as the representation of the styles inherent to the golden age of the Haute Couture houses, and the status of the luxury brands with history was represented by equally arranging the size and characteristics of the elements of the designs related to jacket silhouette. Conceptual value was reestablished as contemporary identity into which the traditional ideology of the houses and the present designers' sentiments were grafted by developing the designs with the theme containing the identity of the past Haute Couture houses. Retro value was utilized as the strategy to differentiate the luxury brands with long history from contemporary products. Creative value was expressed as tailored jackets with new concepts of shape variation and usage conversion by combining creative sentiments with the high quality techniques of Haute Couture and appears to be able to create a new consumption market of luxury brands in the global fashion market.

• Journal of Fashion Business
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• v.27 no.4
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• pp.88-100
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• 2023

This study analyzed the compositional characteristics of fashion videos and the characteristics of fashion design spreading as trends through Subversive Basics. Literature research and case studies were conducted concurrently. Based on the literature review, an analysis method was designed, focusing on the concept of online video content, Subversive Basics, and the video content type. For the case analysis, videos were collected and classified using Subversive Basics as the keyword. The content was observed, and design features were analyzed. Based on the results, the collected videos were classified into tutorial, curation, and creative content types according to their compositional characteristics. Tutorial content emphasizes practical actions that demonstrate how to make or modify clothing, thereby promoting user-generated content for dissemination. Curation contents provide users with style ideas and information about clothing and purchases to encourage clothing purchases and influence purchase decisions that lead to dissemination through clothing consumption and wear. Creative content showcases the process of modifying and creating clothes to enhance understanding and value of creative design. The characteristics of fashion design utilized in these contents include bold designs with high visual effects as the first category, designs that can be easily and quickly modified due to intentional incompleteness as the second category, and prominently featured body-positive, individualistic designs as the third category. The results of this study can be associated with balanced development between basic design elements and personalized unique designs, catering to consumer needs.

• ETRI Journal
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• v.33 no.2
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• pp.275-278
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• 2011

This letter presents a polymer $1{\times}2$ thermo-optic totalinternal-reflection digital optical switch (TIR-DOS) with an index contrast of 1.5%-${\delta}$ operating at low power consumption. The structure of our $1{\times}2$ TIR-DOS was created by adding a reflection port to that of a conventional multimode filtering variable optical attenuator. To improve the total-internalr-eflection efficiency, a heater offset was applied to the crossing region of multimode waveguides of the TIR-DOS. The fabricated $1{\times}2$ TIR-DOS shows a low electrical power consumption of 18 mW for an on-off ratio of 35 dB.

• Journal of Microbiology and Biotechnology
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• v.26 no.4
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• pp.763-774
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• 2016

Equine gastric ulcer syndrome is one of the most frequently reported diseases in thoroughbred racehorses. Although several risk factors for the development of gastric ulcers have been widely studied, investigation of microbiological factors has been limited. In this study, the presence of Helicobacter spp. and the gastric microbial communities of thoroughbred racehorses having mild to severe gastric ulcers were investigated. Although Helicobacter spp. were not detected using culture and PCR techniques from 52 gastric biopsies and 52 fecal samples, the genomic sequences of H. pylori and H. ganmani were detected using nextgeneration sequencing techniques from 2 out of 10 representative gastric samples. The gastric microbiota of horses was mainly composed of Firmicutes (50.0%), Proteobacteria (18.7%), Bacteroidetes (14.4%), and Actinobacteria (9.7%), but the proportion of each phylum varied among samples. There was no major difference in microbial composition among samples having mild to severe gastric ulcers. Using phylogenetic analysis, three distinct clusters were observed, and one cluster differed from the other two clusters in the frequency of feeding, amount of water consumption, and type of bedding. To the best of our knowledge, this is the first study to investigate the gastric microbiota of thoroughbred racehorses having gastric ulcer and to evaluate the microbial diversity in relation to the severity of gastric ulcer and management factors. This study is important for further exploration of the gastric microbiota in racehorses and is ultimately applicable to improving animal and human health.

• The Research Journal of the Costume Culture
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• v.25 no.1
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• pp.104-116
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• 2017

People tend to maintain and express their individuality in unique ways. Consumer's need for uniqueness is defined as an individual's pursuit that differentiates themselves from others, thereby developing and enhancing their personal identities. This study examined the effect of consumers' need for uniqueness on fashion orientation and consumption values. Data were collected through a questionnaire survey distributed to people visiting the fashion show center during Seoul Fashion Week. The survey questions were designed using the 5-point Likert scale and Cronbach's ${\alpha}$ value of questions was reliable as .628-.862. The study's results indicate that people with high need for uniqueness are very interested in fashion and think that is important to be well-dressed. In addition, the results suggest that people with high needs for unusual choices who enjoy challenging the prevailing taste of people want to be fashion leaders and are attracted to products that express their personality well. And people with high needs for creative choices and incompliant choices value their own satisfaction and happiness with the products. On the other hand, consumer's needs for incompliant choices have a negative effect on social value. As a result, people with high needs for incompliant choices would break social norms rather than consider social status and reputation when they purchase fashion products. The concluding section of the paper discusses the implications of this research for fashion companies.

• Journal of international Conference on Electrical Machines and Systems
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• v.3 no.4
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• pp.481-486
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• 2014

The demand for a DC power distributed system is increasing as renewable energy sources and DC electrical load are proliferating. For the automation of a power system, a magnetic contactor for the DC power system is required. The conventional magnetic contactors are mostly equipped with a solenoid magnetic actuator. However, the conventional magnetic contactor has problems with continuous power consumption, and heat generation. To address these problems, a permanent magnet type DC magnetic contactor is proposed in this paper.