• Journal of Fashion Business
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• v.26 no.4
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• pp.18-31
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• 2022

Fashion is one of the main environmental pollution industries. To reduce pollution, much of the deadstock clothes are given a new value by being redesigning based on the designer's competency. This study aims to promote the revitalization of redesigning by analyzing and presenting hybrid design characteristics of the Sacai design collection, as a redesigning brand, and formative element characteristics of redesigning. A theoretical study using previous research on redesigning and related books and an empirical study analyzing the Sacai Collection were conducted. Based on the study results, there are four types of redesigning processes; recombination of heterogeneous clothing structure, reorganization by reversed function and position, reorganized composition by material processing, and mixing of heterogeneous materials. In the recombination of heterogeneous clothing structures, heterogeneous materials and structures coexist by combining the clothing components with other clothing elements. The second is the reconstruction by subversion. The third is reconstruction by material processing. The fourth is a mixture of disparate materials. This study has innovative redesign features from Sacai designs, and there are plans for a follow-up study that will analyze the work of another designer who is recognized for the excellence in redesigning.

• Journal of Fashion Business
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• v.26 no.4
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• pp.1-17
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• 2022

In the fashion industry, the demand for new perspectives to express creativity has always been high. Expression of new perspectives allows creative ideas to emerge, thereby breaking away from habitual and familiar perceptions. The purpose of this study is to identify and analyze how the theory of defamiliarization is being applied in fashion design by the brand Münn, which claims defamiliarization as a design philosophy. The study examined the concepts and the characteristics of Viktor Shklovsky by literature review and derived the main characteristics of the defamiliarization theory for fashion design analysis based on studies that used defamiliarization in other fields. Furthermore, after analyzing Münn's collection, we found how the main characteristics of defamiliarization derived from reviews were expressed in Münn's designs. The defamiliarization in Münn's collection was first, 'breakaway from stereotype' appeared through re-recognition of perception and unexpected use of heterogeneous materials. Second, 'distortion and analogy through image' was revealed through the East and West clothing-making methods, which broke away from the stereotype of image and the juxtaposition and cultural reconstruction of details. Third, 'transition of viewpoint' was shown as an avant-garde sense through the conversion of usage purpose of design, material, or items in which subjects and objects were converted with conceptual design and material or silhouette.

• Journal of the Korea Fashion and Costume Design Association
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• v.20 no.3
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• pp.79-98
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• 2018

The purpose of this study is to analyze and document special design elements of the knit material, such as yarn, stitch, and gauge used in various types of knit in a collection of men's fashion, and to provide basic data for database design. The analysis covers 37 brand collections of men's clothing, used to collect a total of 1,954 men's knitwear photographs, and others were collected from 12 collections from F/W to 2017 S/S collection through www.vogue.com. The results of the analysis of the knit design elements of the contemporary men's collection since 2011 are as follows. First, there were 1,513 straight yarn (77%) and 440 decorative yarn (23%) types of yarn. There were many different kinds of decorative yarn, such as two tone and melange effect in three colors, and the emergence of hairy yarn, like mohair and angora shannell, which was much common in low gauge's knitwear designs. Second, the frequency was high with low and middle gauges. thin and light high-gauges were often found in S/S collections, but there were also thick types of yarn in low-gauge knitwear. Third, 794 (40.6%) items used basic stitches such as plain stitch, which was the most utilized. The plain stitch, which is the most basic of the knit stitches, appears to be in high demand for its use, along with the use of various decorators. The development of printing and dyeing technologies has led to many designs that utilize the printer for the plain stitch. 326 (16.7 %), of colored jacard stitch, and of 175 (0.9 %) of intasia stitch.

• Particle and aerosol research
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• v.12 no.3
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• pp.51-56
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• 2016

Due to recent development in nanotechnology and increasing usage and production of nanomaterials, numerous studies related to environment, sanitation and safety handling of nanoparticle are being conducted. Since nanoparticles can be easily absorbed into human bodies through breathing process, based on their toxic substances and their large specific surface, these particles can cause serious health damage. Therefore, to reduce nanoparticle emissions, nanofiltration technology is becoming a serious issue. Filtration is a separation process during which a fluid passes through a barrier by removing the particles from the stream. Barrier filters can be made of various materials and shapes. One of the most common type of barrier filter is the fibrous filter. Fibrous filters are divided in two types: nonwoven and woven fabrics. Polypropylene is a thermoplastic material, used as a base material for melt blown nonwoven fabric. In this study, we examined filtration property of KCl nanoparticles with a mean particle diameter of 75 nm using multilayer meltblown filter samples. These experiments verify that the penetration of nanoparticle in the filter correlate with pressure drop; the meltblown layer MB1 has the greatest effect on dust collection efficiency of the filter. Among all tested samples, dust collection efficiency of 2-layer filter was best. However, when considering the overall pressure drop and dust collection efficiency, the 4-layer filter has the highest quality factor for particles smaller than 70 nm.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.37 no.1
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• pp.79-87
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• 2024

This paper is a study on the optimal microdroplet generation conditions in indirect charging electrostatic spraying. Unlike the direct charging method, which applies power to the nozzle, the indirect charging method applies power to the discharge electrode between the nozzle and the collection electrode. Therefore, an electrically simplified system can be obtained by minimizing the insulation part a stable spray pattern can be obtained with a wide spray angle, and a stable spray pattern can be obtained with a wide spray angle. To conduct the study, an indirect charging type electrostatic spray visualization system was constructed and the static characteristics of the microdroplets were analyzed through image processing of the spray shape of the microdroplets. The total number of microdroplets and the number of microdroplets per power consumption are confirmed according to the changes in the distance between the discharge electrode and the collection electrode, the flow rate, and the applied voltage, which affect the generation of microdroplets, and using this, the optimal generation conditions are derived and the corresponding microdroplet size distribution was analyzed. As a result of the experiment, it was confirmed that the optimal generation condition was at a flow rate of 15 to 20 mL/min and a voltage of -22.5 to -25 kV in terms of the number of microdroplets, and at a flow rate of 15 to 20 mL/min and a voltage of -20 kV in terms of energy consumption efficiency.

• The Korean Journal of Mycology
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• v.41 no.2
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• pp.132-135
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• 2013

Black Aspergillus is important fungus for oriental fermentation industry. Black Aspergillus was frequently isolated from Korean traditional Meju, a fermented soybean starting material for soy sauce and soybean paste. Thirty three strains were isolated from 98 finished Meju collected in various regions of Korea from 2008 to 2011, and 21 strains were isolated from in-process Meju at various farms from 2010 to 2011. The isolated black Aspergillus were identified using DNA sequences of partial ${\beta}$-tubulin and calmodulin genes. Of 54 black Aspergillus strains, 14 strains were identified as A. luchuensis and the others were composed of A. niger (n = 21), A. tubingensis (n = 10), and A. welwitschiae (n = 9).

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.28 no.2
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• pp.135-143
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• 2018

Objectives: There have been many studies on exposure assessment of workers at companies using asbestos as a raw material and at sites of the removal of materials containing asbestos. However, no research has been carried out on the asbestos exposure of workers in industries involving asbestos-containing waste, such as workers at collection and transportation service companies, mid-treatment companies(solidification of asbestos-containing waste), and landfill sites. The objective of this study was to assess the asbestos exposure concentrations of workers in industries handling waste containing asbestos. Methods: For this study, we carried out field investigations at 15 companies: seven collection and transportation service companies, three mid-treatment companies, and five final treatment companies(landfill sites). We took both personal and area samples. Results: The range of asbestos exposure levels of workers handing asbestos-containing wastes at collection, mid-treatment, and landfill companies were 0.000 fibers/cc-0.009 fibers/cc, 0.000 fibers/cc-0.038 fibers/cc, and 0.000 fibers/cc-0.024 fibers/cc, respectively. Conclusions: The asbestos exposure levels of workers at mid-treatment companies were higher than those at collection and transportation companies and at final treatment companies. In the case of collection and transportation workers, the possibility of exposure to levels exceeding those found in the present study is not particularly high considering the characteristics of the work. However, in the case of intermediate or final disposal workers, it is considered that there is a possibility of exposure to levels above those found in this study.

• Korean Journal of Medicinal Crop Science
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• v.26 no.3
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• pp.214-219
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• 2018

Background: This study was carried out to determine the best time for collecting ginseng berries without reducing the ginsenoside-Re content of ginseng roots, which are used as food, medicine, or cosmetic materials. Methods and Results: The test variety of ginseng used in this study was is Chunpung, which was collected from a 4-year-old ginseng field. Ginseng berries were collected at 7, 14, 21, 28, 35, 42, 49, and 56 days after flowering. The number of berry bunches per $1.62m^2$ ranged from 43.4 to 61.4, while the weight of berries per $1.62m^2$ was the greatest when they were collected 49 days after flowering. The root fresh weight per $1.62m^2$ was increased by 0.21 - 1.00 kg compared with that before the test, but root weight gain was decreased as the berry collection time was delayed. Total ginsenoside content of 4-year-old ginseng was the highest when berries were collected 7 days after flowering, while the ginsenoside-Re contents was the highest when collection was done 14 days after flowering. Conclusions: The most suitable period for ginseng berry collection was proposed to be from 14 to 21 days after flowering, as this is when the content of ginsenoside-Re, which is useful as a medicinal or cosmetic material, is still high and the ginseng root has not yet decreased in weight.

• Journal of the Korean Society for Library and Information Science
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• v.41 no.2
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• pp.359-386
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• 2007

This study is to develop the operation models collection and preservation of serials only distributed online. In order to identify all of the requisite items for collection and preservation of the online serials, it conducts Delphi Technique researches with panels of experts from public institutions, organizations, and research institutions. It also deduces the 68 necessary detailed items to develop the operation models for preserving the online serials, and suggests 57 detailed items selected from the compatibility analysis with the investigation and examination of compatibility and urgency. It suggests the automated collection plan of contents with the application of RSS technology of transfer protocol to provide users the updated information from the sites where the contents and data have been constantly and frequently updated. This study strives to design the collection and preservation processes suitable for the online serials.

• Mycobiology
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• v.44 no.4
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• pp.269-276
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• 2016

Aspergillus luchuensis is known as an industrially important fungal species used for making fermented foods such as awamori and shochu in Japan, makgeolli and Meju in Korea, and Pu-erh tea in China. Nonetheless, this species has not yet been widely studied regarding mating-type genes. In this study, we examined the MAT1-1 and MAT1-2 gene ratio in black koji molds (A. luchuensis, Aspergillus niger, and Aspergillus tubingensis) and in Aspergillus welwitschiae isolated from Meju, a fermented soybean starting material for traditional soy sauce and soybean paste in Korea. The number of strains with the MAT1-1 locus was 2 of 23 (A. luchuensis), 6 of 13 (A. tubingensis), 21 of 28 (A. niger), and 5 of 10 (A. welwitschiae). Fungal species A. tubingensis and A. welwitschiae showed a 1 : 1 ratio of MAT1-1 and MAT1-2 mating-type loci. In contrast, A. luchuensis revealed predominance of MAT1-2 (91.3%) and A. niger of MAT1-1 (75%). We isolated and identified 2 A. luchuensis MAT1-1 strains from Meju, although all strains for making shochu in Japan are of the MAT1-2 type. These strains may be a good resource for breeding of A. luchuensis to be used in the Asian fermented-food industry.