• Journal of Electrical Engineering and Technology
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• 제13권5호
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• pp.2059-2066
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• 2018

This study explored the feasibility of utilizing an SWCNT-coated fabric sensor for the development of a wearable motion sensing device. The extent of variation in electric resistance of the sensor material was evaluated by varying the fiber composition of the SWCNT-coated base fabrics, attachment methods, number of layers, and sensor width and length. 32 sensors were fabricated by employing different combinations of these variables. Using a custom-built experimental jig, the amount of voltage change in a fabric sensor as a function of the length was measured as the fabric sensors underwent loading-unloading test with induced strains of 30 %, 40 %, and 50 % at a frequency of 0.5 Hz. First-step analysis revealed the following: characteristics of the strain-voltage curves of the fabric sensors confirmed that 14 out of 32 sensors were evaluated as more suitable for measuring human joint movement, as they yield stable resistance values under tension-release conditions; furthermore, significantly stable resistance values were observed at each level of strain. Secondly, we analyzed the averaged maximum, minimum, and standard deviations at various strain levels. From this analysis, it was determined that the two-layer sensor structure and welding attachment method contributed to the improvement of sensing accuracy.

• 한국컴퓨터정보학회논문지
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• 제24권10호
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• pp.117-127
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• 2019

본 연구에서는 사이즈코리아의 제7차 인체측정조사 자료 중 40-59세 중년 남성의 직접 계측 데이터를 분석하여 전신 체형의 특성을 알아보고, 중년 남성의 전신 체형을 유형화하고자 하였다. 이를 통해 맞음새가 우수한 중년 남성의 의복패턴 제작에 필요한 기초자료를 제공하고자 하였다. 전신 계측자료는 SPSS Ver. 24.0 프로그램으로 분석하였다. 요인은 신체의 수평, 수직, 어깨관련, 앞중심길이, 다리굵기, 어깨처짐 등 6개 요인이 추출되었다. 중년 남성의 전신체형은 3개로 유형화되어 유형1은 둘레는 가늘고 너비는 좁으며, 높이는 낮고 앞중심길이는 짧으며 다리가 얇은 체형이다. 유형 2는 높이는 높고 앞중심길이는 길며, 둘레 및 너비는 보통으로 다리가 굵고 어깨가 처진 체형이다. 유형3은 둘레는 크고 너비는 넓으며 어깨도 넓은 체형으로 앞중심길이는 긴 편이지만 신체높이는 낮고 어깨가 처지지 않은 체형이다. 중년 남성은 복부의 돌출 및 지방축적에 따른 둘레와 두께 항목의 증가가 두드러지므로 이를 반영한 패턴 제작이 필요할 것으로 생각된다.

• 생체재료학회지
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• 제22권4호
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• pp.279-289
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• 2018

Background: Cell behavior is the key to tissue regeneration. Given the fact that most of the cells used in tissue engineering are anchorage-dependent, their behavior including adhesion, growth, migration, matrix synthesis, and differentiation is related to the design of the scaffolds. Thus, characterization of the scaffolds is highly required. Micro-computed tomography (micro-CT) provides a powerful platform to analyze, visualize, and explore any portion of interest in the scaffold in a 3D fashion without cutting or destroying it with the benefit of almost no sample preparation need. Main body: This review highlights the relationship between the scaffold microstructure and cell behavior, and provides the basics of the micro-CT method. In this work, we also analyzed the original papers that were published in 2016 through a systematic search to address the need for specific improvements in the methods section of the papers including the amount of provided information from the obtained results. Conclusion: Micro-CT offers a unique microstructural analysis of biomaterials, notwithstanding the associated challenges and limitations. Future studies that will include micro-CT characterization of scaffolds should report the important details of the method, and the derived quantitative and qualitative information can be maximized.

• 한국컴퓨터정보학회논문지
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• 제26권12호
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• pp.201-212
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• 2021

본 연구는 시판되고 있는 여성 요실금 팬티 제품의 패턴을 분석하여 흡수층과 전체적인 패턴의 형태를 비교해 보고자 하였다. 이를 통해 액티브 시니어를 위한 기능성 요실금 팬티 개발에 필요한 기초자료를 얻고자 하였다. 시판 12개 제품을 분해하여 치수, 패턴 등을 분석하고 3차원 시뮬레이션을 통해 외관, 의복압을 평가하였다. 요실금 팬티의 치수 및 패턴 비교 결과, 같은 호칭의 제품임에도 부위별 치수 차이가 큰 것으로 분석되었다. 같은 브랜드 제품도 디자인 및 흡수량에 따라 큰 차이를 나타냈다. 3차원 시뮬레이션에 대한 외관평가 결과, 앞면, 옆면, 뒷면 등 모든 항목에서 제품 간에 유의미한 차이가 있은 것으로 나타났다. 9번 제품이 옆면의 허리 맞음새를 제외하고 가장 우수한 것으로 분석되었다. 의복압에 대한 평가에서는 팬티 제품의 특성상 1번, 2번, 8번 제품을 제외하고 대부분 붉은색으로 표시되었다. 향후 실제 착의실험 및 요실금 팬티에 대한 사이즈 규격화 연구가 이루어져야 할 것으로 생각된다.

• Acta Via Serica
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• 제7권2호
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• pp.153-178
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• 2022

This study analyzes the traces of East-West cultural exchange focusing on the palmette pattern expressed on Sassanid Persian and Silla Korean carpets. The results of the study are as follows. The palmette, which originated in ancient Egypt, is an imaginary flower made up of the transformation of a lotus, which combined with the Mesopotamian quadrant (四分法) and expanded to a four-leaf palmette and further to an eight-leaf palmette by applying the octant (八分法). The palmette, which was brought to Assyria, Achaemenid Persia, Parthia, Greece, and Rome, can be seen lavishly decorated with plant motifs characteristic of the region. Sassanid Persia inherited the tradition of the palmette pattern, which applied the quadrant and octant seen in several previous dynasties. On the one hand, it has evolved more splendidly by combining the twenty or twenty-one-leaf palmette and the traditional pearl-rounded pattern decoration of Sassanid Persia. These Sassanid Persian palmette patterns can be found through the palmette patterns depicted on the ceilings of the Dunhuang Grottoes located on the Silk Road. The palmette pattern of the Dunhuang Grottoes was expressed in the form of a fusion of Persian Zoroastrianism, Indian Buddhism, and indigenous religions. In the Tang Dynasty, it shows the typical palmette pattern of four and eight leaves in the medallion composition, which were mainly seen in Persian palmettes. The palmette pattern handed down to Silla can be found on a Silla carpet, estimated to be from around the 8th century, in the collection of Shoso-in (正倉院), Japan. The Silla carpet shows a unique Silla style using motifs such as peonies and young monks, which were popular in Silla while following the overall design of the Persian medallion.

• Human Ecology Research
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• 제60권4호
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• pp.549-564
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• 2022

This study aimed to develop an e-mentoring youth financial education program and verify its effectiveness for promoting financial empowerment and establishing financial capabilities among independent consumers. A four-session, eight-hour "Youth Financial Empowerment Mentoring Program" was developed. This program dealt with financial literacy and financial psychology factors in an integrated fashion. We used the nonequivalent control group pretest-posttest design to evaluate the program's effectiveness. Specifically, by using Zoom, a virtual conference platform, four mentors of college students were trained for four sessions over two weeks. Meanwhile, four groups were formed with four mentors and 18 high school mentees to implement a four-week e-mentoring program. As a result of the analysis of covariance, significant differences were found between the two groups in all financial psychology factors and financial literacy variables. In addition, the score of the experimental group was higher than that of the control group. As a result of qualitative evaluation through FGI for mentees and mentors, mentees experienced positive changes in financial behavior, beliefs, attitudes, and personal relationships, as well as increased financial knowledge. Meanwhile, mentors experienced positive changes in their introspection into financial behavior and consumption. Considering these results, we can conclude that this program effectively induces participants to learn and reflect on their initiative, which is in line with the original goal of "improving financial empowerment".

• 한국컴퓨터정보학회논문지
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• 제14권1호
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• pp.183-190
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• 2009

유비쿼터스 컴퓨터 환경의 핵심기술은 상황인식 컴퓨팅기술로써 상황인식기술은 소프트웨어적 성격이 강하여 상황인식의 핵심엔진을 개발하고 이를 적용한 장치 개발이 주요 연구 작업이다. 유비쿼터스 컴퓨팅시대가 도래하면 기존의 인터넷 쇼핑몰에서 고객이 직접 상품을 검색하여 주문을 하는 형태에서 진화되어 상황인식 기술의 핵심기술인 지능형 에이전트 기술이 접목된 검색 엔진이 고객의 입력 정보를 조합하여 비교검색이 이루어진 후 추천하는 형태의 시스템으로 발전될 것이다. 본 논문에서는 사례기반 추론 기법 및 지능형 에이전트 기술을 기반으로 한 검색 엔진을 설계하고 인터넷 패션 상품 전문 몰에 적용하여 고객이 직접 상품을 검색하는 대신 지능형 에이전트가 검색하여 패키지 형태로 제공되는 주문형 맞춤식 패션 전문 시스템을 설계하고 프로토타입을 구현한다.

• 예술인문사회 융합 멀티미디어 논문지
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• 제8권7호
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• pp.719-728
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• 2018

각 나라별로 선호하는 이미지와 효과적으로 전달하는 방법은 다르다. 본 연구에서는 한국의 전통화장 방법과 선호하는 이미지를 효과적으로 전달하기 위한 방법을 찾고자 한다. 조선시대의 고문서 중에서 백과사전 성격의 '규합총서(閨閤叢書)'는 10가지 시조를 통해 그 시대의 선호하는 눈썹을 시조형태로 표현한 '십미요(10 eyebrow poetry)'가 있다. 본 연구에서는 십미요를 적용하고 실제 모델에 제작해 문제 해결을 하고 문헌, 인터넷, 사례의 방법으로 구성되었다. 제작된 모형 자극물은 메이크업 전문가 10인과 70명 남, 녀 블라인드 길거리 실험을 진행하여 호감 및 선호도를 측정 하였다. 결과는 "Gaewon-eoaemi" 유형이 가장 좋아 보이며 이쁘고 매력적이며, 생각하는 눈썹 모양과 현재 유행하는 눈썹 모양과 가장 일치하는 유형이라고 인식 하였다. 고전에 표현되어 있는 다양한 비언어적인 방법으로 본 연구에서는 시각시를 활용하여 효과적으로 전달하기 위한 방법을 알아보았다. 본 연구는 시대별 문화의 흐름에 이해를 돕는 분야를 독료하고 디자인발상 전환에 기여하게 될 것이다.

• 한국염색가공학회지
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• 제35권2호
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• pp.82-96
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• 2023

The purpose of this study is to enhance the usability of hanji fabrics by expanding the color space of hanji fabrics. For the expression of various colors of hanji fabrics, single and combination dyeing were carried out using natural indigo(Niram, Polygonum tinctorium), marigold extract colorant, and madder extract colorant for three types of hanji fabrics with different fiber compositions(hanji, hanji/cotton, hanji/silk). The light, medium, and deep colors obtained through individual single dyeing were shown to be PB Munsell colors in the case of indigo dyeing, Y color for marigold dyeing, and R color for madder dyeing. For combination dyeing, indigo dyeing was first carried out under the conditions for light, medium, and deep colors, respectively, and marigold or madder dyeing was performed thereafter. Indigo and marigold combination dyeing produced PB, B, BG, G, and GY Munsell colors and indigo and madder combination dyeing produced PB, P, RP, and R Munsell colors. Overall, the color change of hanji/silk fabric was more diverse than that of hanji fabric and hanji/cotton fabric. In the indigo, marigold, and madder combination dyeing into individual deep colors, blackish PB and P Munsell colors was obtained. Colorfastness to washing, dry cleaning, rubbing, and light were relatively good with above rating 4. Finally, 9 colors excluding YR color out of 10 Munsell color were obtained. We confirmed that the expansion of the color space of Hanji fabrics by the single and combination dyeing with indigo, marigold, and madder.

• 치위생과학회지
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• 제23권2호
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• pp.88-92
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• 2023

Background: Aphthous stomatitis is a common disease of the oral mucosa and its pathogenesis is associated with several risk factors. Frequently, minor ulcers are idiopathic in nature and often resolve naturally. However, those ulcers are painful and sensibly compromise patients' eating. There are different treatment strategies for the clinical management of oral aphthae. Methods: The present study assessed the efficacy of a film-forming cream in accelerating the healing and diminishing the pain associated with minor aphthae in a randomized fashion design. The test product (AphtoFix^®) was compared with placebo cream in a cohort of patients with a diagnosis of minor recurrent stomatitis. Patients were randomly distributed into two groups and were followed for 10 days. The primary outcomes included the number of days until symptoms were relieved and the number of days to complete healing. Results: Thirty-six patients completed the follow-up, eighteen per group. All lesions eventually healed within day 10. However, patients in the test group experienced significantly less pain, already from day 1. Patients in the test group also showed a faster healing rate of the lesion with an average of 7 days against the 9 days required for patients in the control group. Conclusion: The present study supported the utility of a film-forming in cream in relieving the patient from symptoms associated with aphthous stomatitis already at day 1 of product use. Patients also displayed faster healing of the lesions when compared to the control group. Further studies with greater sample size and patient stratification according to age and risk factors are recommended to support the present findings.