• Fashion & Textile Research Journal
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• v.26 no.3
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• pp.273-278
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• 2024

Consumer preferences for food are influenced by personal values and personalities. Social, economic, and cultural developments in modern society have influenced consumer lifestyles and brought about multiple changes in consumption patterns. In the beauty market, consumers are now more interested in specialized offerings, and an increasing number of people are opting for customized products in a market structure where mass production has led to mass consumption. Hair products are now manufactured as functional cosmetics designed to maintain and improve scalp health and hair growth by removing waste from the scalp and adding fragrance for cleanliness, breaking away from the concept of general cosmetics. Many studies have focused on personalized products in the cosmetics industry. This study aimed to accurately determine scalp types and further diagnose individual scalp conditions using a scalp diagnostic device. Based on the diagnoses, it recommended and provided personalized shampoos in order to understand how these shampoos improved scalp health. By objectively analyzing and comparing scalp conditions before and after using customized shampoos, the study demonstrated a significant effect on scalp health. The results of this study confirmed the perception and effectiveness of personalized shampoos.

• Mass Spectrometry Letters
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• v.4 no.4
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• pp.75-78
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• 2013

A gas chromatography/mass spectrometric (GC/MS) method was developed as a candidate reference method for the accurate determination of essential fatty acids (linoleic acid, ${\alpha}$- and ${\gamma}$-linolenic acids) in food supplemental oil products. Samples were spiked with three internal standards (stearic acid-$d_{35}$, $^{13}C_{18}$-linoleic acid, and $^{13}C_{18}$-${\alpha}$-linolenic acid). Samples were then subject to saponification, derivatization for methylation, and extraction by organic solvent. For GC/MS measurement, an Agilent HP-88 column, designed for the separation of fatty acid methyl esters, was selected after comparing with other columns as it provided better separation for target analytes. Target analytes and internal standards were detected by selected ion monitoring of molecular ions of their methyl ester forms. The GC/MS method was applied for the measurement of three botanical oils in NIST SRM 3274 (borage oil, evening primrose oil, and flax oil), and measurement results agreed with the certified values. Measurement results for target analytes which have corresponding isotope-labeled analogues as internal standard were calculated based on isotope dilution mass spectrometry (IDMS) approach, and compared with results calculated by using the other two internal standards. Results from the IDMS approach and the typical internal standard approach were in good agreement within their measurement uncertainties. It proves that the developed GC/MS method can provide similar metrological quality with IDMS methods for the measurement of fatty acids in natural oil samples if a proper fatty acid is used as an internal standard.

• Journal of the Korean Society of Costume
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• v.65 no.2
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• pp.125-143
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• 2015

This study is to propose an 'education-training-certificate of qualification' design of fashion accessories production, which can be applied to education in universities and individuals. It is based on the National Competency Standards (NCS), which was developed through the '2013 National Competency Standards Development Project' for the fashion accessories production. FGI (Focus Group Interviews), which is a research methodology, is carried out on target groups of educational experts and specialists in the field of fashion accessories production. Through this, five courses were suggested; first, 'fashion accessories design' course was proposed for the education and training of 'design development' and 'development of raw materials'. Secondly, 'fashion product production' course was proposed for the education and training of 'production of samples'. Thirdly, 'fashion product manufacture and planning' course was proposed for the competency element units: 'calculation of cost', 'determination of mass production model and price', 'planning of the main manufacturing process' and 'ordering of raw materials'. Lastly, 'mass production of fashion products' course and the 'field practice of fashion product manufacture' course were proposed for the competency element units: 'planning for mass production', 'preparation for mass production', 'mass production' and 'inspection of completed products'. In addition, a new certificate of 'technician of fashion accessory production' was proposed in order to test qualified skills for the fashion accessories production. The test is composed of a written examination of short-answer questions, technical drawing and production.

• Magazine of the Korea Concrete Institute
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• v.14 no.4
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• pp.82-85
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• 2002

매스 콘크리트 타설전 배합 및 적용 실험을 실시함으로써 현장의 여건에 알맞은 최적의 배합비를 도출하며 실내 배합 실험을 실시하고 배치 플랜트에 적용하여 실제 현장에 실용시킬 수 있다.(중략)

• Journal of Fashion Business
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• v.14 no.4
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• pp.146-160
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• 2010

The influence of mass media on the consumers who want to purchase fashion products might be very important. Especially fashion magazine, a media of providing professional information and opinion about fashion, not only provides the information of products or fashion trend, but is used as an advertising media for publicizing products. The purpose of this study is to investigate how such fashion magazine affects consumers. In this study, questionnaire survey was administrated to understand the status of subscription of fashion magazine and consumers' influence. To analyze the garment style comparatively, the pictures that were taken on Dongseong Street from December 2007 to November 2008, and the pictures in fashion magazine Vogue Korea were analyzed to the content. Followings are the results of the study. consumers receive the information of products and new style through fashion magazine, but mostly wear the garment style that emphasizes convenience in practical life. In other words, the fashion magazine provides consumers with the information of fashion products and has the influence as the source of fashion style information and the fashion trend, but is not yet spreaded to people as much as generalized and accepted on the street. It is because the information in fashion magazine is differentiated information that is first received by particular readers, that is, the fashion leaders sensitive and much interested in the fashion. Fashion magazine is used as a means of getting information of fashion and style and satisfying the desire of novelty, and tend to be a sensuous media of delivering information through image. It, however, must be a mass media that shows the trend and leads the fashion.

• Journal of the Korean institute of surface engineering
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• v.32 no.3
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• pp.416-422
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• 1999

The characteristics of inductively coupled Cl$_2$/BCl$_3$ plasmas during the GaN etching were studied using plasma mass spectrometry by measuring the relative amounts of reactive ions, neutrals, and etch products. GaN etch rates increased with the increase of pressure and showed a maximum near 25mTorr for the pure $Cl_2$ and near 30mTorr for $Cl_2$$BCl_3$. The addition of$ BCl_3$ to $Cl_2$ also was increased GaN etch rates until 50%BCl$_3$ was mixed to $Cl_2$. The GaN etching with pure $Cl Cl_2$ appears to be related to the combination of Cl$_2^{+}$ ion bombardment and the chemical reaction of Cl radicals. In the case of the GaN etching with Cl$_2$/BCl$_3$, in addition to the combined effect of$_2^{ +}$ ions and Cl radicals, $_BCl2^{+ }$ ions appear to be responsible for some of GaN etching even though they do not have significant effect on the GaN etching compared to $Cl_2^{+}$ and Cl. $Ga^{+ }$ , $GaCl^{+}$ , $GaCl_2^{+}$ , and $N_2^{+}$ were observed as the positive ions of etch products, and the intensities of these etch products showed the same trends as those of GaN etch rate. Among the etch products, Ga and $N_2$ appear to be the main etch products.

• 한국HCI학회:학술대회논문집
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• 2007.02c
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• pp.326-333
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• 2007

To simulate solid dynamics,a we must com-pute the mass, the center of mass, and the products of inertia about the axes of the body of interest. These mass property computations must be continuously re-peated for certain simulations with rigid bodies or as the shape of the body changes. We introduce a GPU-friendly algorithm to approximate the mass properties for an arbitrarily shaped body. Our algorithm converts the necessary volume integrals into surface integrals on a projected plane. It then maps the plane into a frame-buffer in order to perform the surface integrals rapidly on the GPU. To deal with non-convex shapes, we use a depth-peeling algorithm. Our approach is image-based; hence, it is not restricted by the mathematical or geometric representation of the body, which means that it can efficiently compute the mass properties of any object that can be rendered on the graphics hardware. We compare the speed and accuracy of our algorithm with an analytic algorithm, and demonstrate it in a hydrostatic buoyancy simulation for real-time applications, such as interactive games.

• Korean Institute of Interior Design Journal
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• v.14 no.1
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• pp.126-133
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• 2005

Chair design in recent international furniture exhibitions showed that chair products were varied with several elements in simple and basic shapes. Likewise, the project supposedly referred to a group that could be classified as a design with a concept of ranges, and if the design were aimed at mass production, those group concept could be even stronger in the fields of design. Based on many modern and contemporary examples of mass-produced chairs from three Scandinavian countries namely Denmark, Sweden, and Finland, this study was aimed at discovering new points of view, characteristics, and chair design concerning dominant products. The six companies and three artists were selected as this research's samples. The companies have to have more than four kinds of ranges, and they were Fritz Hansen, Bl Station, K llemo, Lammhults, Artek, and Vivero. We have chosen the 3 artists such as Hans J. Wegner, Bruno Mathsson, and Alvar Aalto who have repeatedly used their own motives to reflect their national identities in various works. The method of the research was the analysis of the current situations of chair designs' ranges. The results of the analysis on the product group for each of the six selected companies show the following variables: 1)Formative characteristics 2)Structural characteristics 3)Emotional characteristics. The artists' groups have symbolically expressed personal identities, and consequently, national identities. Finally, the variation in the simple elements of chair design made the identification of product groups ultimately easier, as the expressions and applications of their identities were used within the scope of mass products in various designs.

• Journal of Powder Materials
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• v.11 no.4
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• pp.308-313
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• 2004

An experimental study on the combustion of superfine aluminum powders (average particle diameter, a$_{s}$: ∼0.1 ${\mu}{\textrm}{m}$) in air is reported. The formation of aluminum nitride during the combustion of aluminum in air and the influence of the combustion scenario on the structures and compositions of the final products are in the focus of this study. The experiments were conducted in an air (pressure: 1 atm). Superfine aluminum powders were produced by the wire electrical explosion method. Such superfine aluminum powder is stable in air but once ignited it can burn in a self-sustaining way due to its low bulk: density (∼0.1 g/㎤) and a low thermal conductivity. During combustion, the temperature and radiation were measured and the actual burning process was recorded by a video camera. Scanning electron microscopy (SEM), X-ray diffraction (XRD) and chemical analysis were performed on the both initial powders and final products. It was found that the powders, ignited by local heating, burned in a two-stage self-propagating regime. The products of the first stage consisted of unreacted aluminum (-70 mass %) and amorphous oxides with traces of AlN. After the second stage the AlN content exceeded 50 mass % and the residual Al content decreased to ∼10 mass %. A qualitative discussion is given on the kinetic limitation for AlN oxidation due to rapid condensation and encapsulation of gaseous AlN.N.

• International journal of advanced smart convergence
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• v.9 no.1
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• pp.82-89
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• 2020

This study is a design study related to the application of 3D printer technology for garment printing. Knitting, which used to be a home industry in the early days, originally comes from hand-knitting. This evolved with various personal devices as a small job for the self-sufficiency of early European housewives. In addition, since the Industrial Revolution, mechanical production entered the mass production mass supply system, and various apparel products were provided to consumers in accordance with mass standardized dimensions. This is similar to the development process in Korea. In addition, it has formed a considerable market with the situation that it can produce and supply apparel products at low labor costs of first-generation Namdaemun and Dongdaemun merchants. As the production shifted to the Southeast Asian region due to the increase in labor costs in the domestically developed social situation, the production of garment products in Korea is now almost 5%. As a result, apparel-related production facilities and related companies are constantly moving to other countries to move production facilities sensitively due to rising labor costs. Recently, smart factory automation has been planned to explore new possibilities. In addition, in recent years, with the evolved appearance of consumers, the appropriate supply of the right amount of production has appeared, and the 3D printer applied to personal garment output has attracted considerable interest in the customized market. Therefore, in order to become a new hope and a small addition to various clothing workers, this study conducted related research on the following 3D printers for clothing output and attempted to proceed with a new design.