• 융합정보논문지
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• 제11권11호
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• pp.266-276
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• 2021

본 연구의 목적은 건강한 두피관리행동의 증진을 위해 건강신념모델에 기초한 여대생의 라이프스타일을 유형으로 나누어 두피관리행동에 대하여 알아보는 것이다. 연구를 위하여 서울, 경기지역의 여대생 총 534명을 대상으로 2020년 3월 18일에서 2020년 4월 7일까지 실시하였다. 연구의 결과 라이프스타일에 따른 두피건강관리 건강신념수준의 차이는 인지된 유익성과 인지된 장애성, 자기효능감에서 모두 유의미한 차이가 나타났다. 또한 라이프스타일에 따른 두피관리행동 차이에 대한 결과로는 사회지향성향, 유행추구성향, 경제지향성향 순으로 높게 나타났다. 따라서 본 연구를 통해 두피건강신념수준을 높일 수 있는 정보와 교육 프로그램의 개설 및 라이프스타일의 유형별 두피관리제품의 개발이 필요하다고 사료된다.

• 한국염색가공학회지
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• 제30권4호
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• pp.245-255
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• 2018

In this study, cotton fabrics were coated with $TiO_2$ nanoparticles using 3-mercaptopropyltrimethoxysilane(3-MPTMS), which is highly reactive to cotton fabrics, as a medium, and the characteristics, antimicrobial properties, and photodegradation properties of the fibers were measured. The manufacturing process is as follows. (1) 3-MPTMS was added to isopropanol, and $TiO_2$ colloid was added to the mixture to prepare a solution. (2) Cellulose fibers were immersed in the prepared $3-MPTMS/TiO_2$ solution, stirred for 90 minutes at $45^{\circ}C$ in a constant temperature water bath, and dried thereafter. In order to identify the morphology of the cellulose fibers coated with $TiO_2$ nanoparticles, the surface was observed with a scanning electron microscope(SEM), and SEM-EDS was measured to identify the adhesion of $TiO_2$ nanoparticles. The SEM images showed $TiO_2$ nanoparticle and 3-MPTMS coated layers on the fibers and it was identified that $TiO_2$ nanoparticles were attached to the cellulose fibers. The antimicrobial activity of $3-MPTMS/TiO_2$-treated cotton fabrics was measured using a bacterial reduction method. $3-MPTMS/TiO_2$ cellulose fibers which was irradiated by ultra violet light, showed antimicrobial activity against Escherichia coli(ATCC 43895) and Staphylococcus aureus(ATCCBAA-1707) unlike unirradiated fibers. The cellulose fibers were stained with methylene blue and the photodegradation performance of the stained fabrics was analyzed. The stained fabrics showed high degradation performance with photolytic reactions of $TiO_2$ nanoparticles.

• 융합정보논문지
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• 제8권6호
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• pp.305-315
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• 2018

본 논문은 대학생들의 외모관리에 대한 관심도와 뷰티트렌드와 융합된 다양한 형태의 외모관리행동과의 연관성을 알아보기 위한 것이다. G지역의 대학생들을 대상으로 2018년 4월15일부터 30일까지 15일 동안 설문지를 배포하여 연구목적과 방법을 설명하고 동의한 학생 267명의 자료를 SPSS 18을 활용하여 분석하였다. 대학생들의 외모관리 관심도는 건강관리에 대한 관심도를 제외한 체형관리, 피부관리, 헤어관리, 화장품사용관리에는 남, 여 대학생에 따른 관심도 차이를 보였다. 그리고 화장품사용관리 관심도가 높은 학생들은 트렌드와 융합된 패션스타일 화장스타일 피부관리 체형관리 행동요인들의 경우 정(+)의 영향을 끼치는 것으로 나타났고, 트렌드와 융합된 운동건강기구 사용 요인에는 부(-)의 영향을 끼치는 것으로 나타났다. 이에 대학생들의 트렌드와 융합된 외모관리행동에 대한 연구를 토대로 뷰티산업체의 신상품개발연구 등에 참고자료 활용을 기대하고, 추후 새로운 융합형태의 외모관리행동연구를 지속할 예정이다.

• 한국분말재료학회지
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• 제25권6호
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• pp.475-481
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• 2018

Selective laser melting (SLM), a type of additive manufacturing (AM) technology, leads a global manufacturing trend by enabling the design of geometrically complex products with topology optimization for optimized performance. Using this method, three-dimensional (3D) computer-aided design (CAD) data components can be built up directly in a layer-by-layer fashion using a high-energy laser beam for the selective melting and rapid solidification of thin layers of metallic powders. Although there are considerable expectations that this novel process will overcome many traditional manufacturing process limits, some issues still exist in applying the SLM process to diverse metallic materials, particularly regarding the formation of porosity. This is a major processing-induced phenomenon, and frequently observed in almost all SLM-processed metallic components. In this study, we investigate the mechanical anisotropy of SLM-produced 316L stainless steel based on microstructural factors and highly-oriented porosity. Tensile tests are performed to investigate the microstructure and porosity effects on mechanical anisotropy in terms of both strength and ductility.

• 한국염색가공학회지
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• 제31권1호
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• pp.48-64
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• 2019

With evolution in the production environment of the textile industry, the need for non-water-based dyeing technologies and eco-friendly process facilities in the dyeing and processing stages has increased. In recent years, supercritical fluid dyes have been developed and commercialized in Europe, centering on this demand. However, so far, such dyes have been mainly applied in the processing of PET fibers. Basic research has mainly involved investigation of dyeing by supercritical carbon dioxide or solubility of such dyes, and more in-depth research should be continuously carried out. In this review, we describe the types and characteristics of supercritical fluids that exhibit specific properties at pressures and temperatures over the critical point. In addition, the state of the art in the dyeing and processing technology using supercritical fluids and associated, processing problems, environmental regulation, and wastewater treatment issues are described in detail. We hope this review can contribute to the supercritical fluid technology being further developed as an environment friendly dyeing processing method. Furthermore, we expect that the technique can be used as a means of ensuring different, high-quality dyed products.

• Asian-Australasian Journal of Animal Sciences
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• 제32권7호
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• pp.1044-1051
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• 2019

Objective: Recent studies have implied that gene expression has high tissue-specificity, and therefore it is essential to investigate gene expression in a variety of tissues when performing the transcriptomic analysis. In addition, the gradual increase of long non-coding RNA (lncRNA) annotation database has increased the importance and proportion of mapped reads accordingly. Methods: We employed simple statistical models to detect the sexually biased/dimorphic genes and their conjugate lncRNAs in 40 RNA-seq samples across two factors: sex and tissue. We employed two quantification pipeline: mRNA annotation only and mRNA+lncRNA annotation. Results: As a result, the tissue-specific sexually dimorphic genes are affected by the addition of lncRNA annotation at a non-negligible level. In addition, many lncRNAs are expressed in a more tissue-specific fashion and with greater variation between tissues compared to protein-coding genes. Due to the genic region lncRNAs, the differentially expressed gene list changes, which results in certain sexually biased genes to become ambiguous across the tissues. Conclusion: In a past study, it has been reported that tissue-specific patterns can be seen throughout the differentially expressed genes between sexes in cattle. Using the same dataset, this study used a more recent reference, and the addition of conjugate lncRNA information, which revealed alterations of differentially expressed gene lists that result in an apparent distinction in the downstream analysis and interpretation. We firmly believe such misquantification of genic lncRNAs can be vital in both future and past studies.

• 한국융합학회논문지
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• 제12권3호
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• pp.341-350
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• 2021

본 연구는 메이크업 분야별 특성을 고려한 메이크업 교육 방향성에 초점을 두었다. 우선, 메이크업 교육의 이론적 근거가 되는 메이크업의 학문적 범주와 속성을 분석하였다. 유사한 메이크업 기술이 필요한 실무 분야를 5가지로 구분하여 각 특성과 핵심자질을 분석하였고, 전문가 심층인터뷰를 통해 그 연구결과를 검증하였다. 결론은 다음과 같다. 메이크업의 학문적 범주는 예술, 기술, 디자인, 보건, 과학, 의학 인문학 등과 관련되어 있다. 5가지 분야에 대한 분석은 대개 실무와 일치함을 알 수 있었지만, 무대 공연과 패션쇼 분야의 핵심자질은 많은 차이가 있었다. 공통적으로 가장 중요한 핵심자질은 기본 뷰티 메이크업, 기본 무대 분장, 기본 영상 분장 기술이었으며 특히, 헤어스타일링 기술에 대한 요구가 높았음을 알 수 있었다.

• 복식문화연구
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• 제28권6호
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• pp.771-786
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• 2020

This study aims to develop a life-friendly, wrap-one-piece style dance sports practice wear considering the physical characteristics of middle-aged, abdominally obese women. These types of practice wear allow people to enjoy exercise easily and to wear these garments as daily wear while meeting the requirements for dance sports wear. The three participants selected for this study were all women with five or more years of dance sports experience and were all average sized on Korea's abdominal obesity scale. In the first phase of the study, practice wear was created in a total of nine styles with three different styles of neckline depths for three different styles of dress skirt lengths. In the second phase of the study, the practice wear was created in 15 styles with five different styles of sleeve lengths for three different styles of waistline heights. After analyzing the design preferences of the participants, the fit preferences of the designs were evaluated and the final appearance was analyzed in order to suggest a pattern. The results of the subjects' first and second preference evaluations showed a preference for a 10 centimeter neckline depth, for high waistlines, and for elbow to wrist-length sleeves. The implementation of this research is expected to be extensive, as its results can be used as basic data for making lifestyle dance sports practice wear that covers the physical insecurities of middle-aged, abdominally obese women and enables them to enjoy their leisure time.

• Journal of Electrochemical Science and Technology
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• 제12권1호
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• pp.58-66
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• 2021

Spiral-wound woven wire meshes packed bed rotating cylinder electrode was used for the simultaneous removal of cadmium (Cd) and copper (Cu) from a binary solution. The effects of weight percent of each metal on the removal and current efficiencies were studied at an operating current of 345A, while the effect of current on the removal efficiency of both metals was investigated at three levels of current (240, 345.and 400 mA). The experiments were carried out at constant rotation speed 800 rpm, pH = 3, and a total concentration of metals (500 ppm). The results showed that the removal efficiency of copper increased from 89% to 99.4% as its weight percent increased from 20% to100%. In a similar fashion, the removal efficiency of cadmium increased from 81% to 97% as its weight percent increased from 20% to100%. The results confirmed that the removal efficiency of any metals declined in the presence of the other. Increasing of current resulted in increasing the removal efficiency of both metals at different weight percents. The results confirmed that current efficiencies for removing of copper and cadmium simultaneously decline with increasing of electrolysis time and weight percent of cadmium or with decreasing the weight percent of copper. Current efficiency was higher at the initial stage of electrolysis for all weight percents of metals. The results showed that the decay of copper concentration was exponential at all weight percents of copper, confirming that the electrodeposition of copper is under mass transfer control in the presence of cadmium. While the decay of cadmium concentration was linear at lower weight percent of cadmium then changed to an exponential behavior at high weight percent of cadmium in the presence of copper.

• 스마트미디어저널
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• 제9권4호
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• pp.162-169
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• 2020

디자인은 섬유패션 산업에서 제품의 경쟁력을 결정짓는 핵심요인이다. 무단복제를 방지하고 독창성을 확인하기 위하여 제시된 디자인의 유사도를 측정하는 것은 매우 중요하다. 본 연구에서는 딥러닝 기법을 이용하여 섬유 디자인의 이미지로 부터 특징(feature)을 수치화하고, 스피어만 상관계수를 이용하여 유사도를 측정하였다. 유사한 샘플이 실제로 검출되는지 검증하기 위하여 300장의 이미지를 임의로 회전 및 색상을 변경하였다. 유사도 수치가 높은 순으로 Top-3와 Top-5의 결과에 회전을 하거나 색상을 변경한 샘플이 존재하는지 측정하였다. 그 결과, AlexNet 보다 VGG-16 모델이 월등히 높은 성능을 기록하였다. VGG-16 모델의 성능은 회전 이미지의 경우에 유사도 결과값이 높은 Top-3와 Top-5에서 64%, 73.67%로 가장 높게 나타났다. 색상변경의 경우에는 Top-3와 Top-5에서 각각 86.33%, 90%로 가장 높게 나타났다.