• Korean Journal of Human Ecology
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• v.15 no.3
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• pp.449-455
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• 2006

We researched the comfort degree of 8 bodily parts while high school students carry out 9 different motions common to them. We observed high school students to study active effection when they are wearing Saenghwal Hanboks as a school uniform. As a result of this study, the highest degrees of comfort were recorded at standing position, walking, and upright sitting position with one's waist keeping 90 degree. On the other hand, the lowest degrees of comfort were experienced when they bend forward 45 degree and 90 degree each, and also when arms were folded across the chest. Furthermore, students reported that their buttocks, waist, and knees were comfortable during observation period, but that their backs, shoulders, and arm hole were uncomfortable throughout. In general, girls felt more comfortable than boys did, while they were wearing Saenghwal Hanbok as a school uniform.

• Journal of the Korean Society of Clothing and Textiles
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• v.47 no.4
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• pp.696-710
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• 2023

This study investigated the problems of Korean female combat uniforms and collected primary data for developing new combat uniforms with improved functionality. We analyzed fit and motion suitability by administering a questionnaire evaluating the current uniforms to 20 Korean female soldiers. The evaluation of fit suitability found that satisfaction with the combat uniforms was generally high. However, short sleeve length, large wrist circumference, small hip circumference, large ankle circumference, and low crotch height were discomfort factors. In the evaluation of motion suitability, dissatisfaction was found with the sleeve circumference, elbow circumference, armhole circumference, knee crease and crotch height, and back waist height during motion. Therefore, it is necessary to establish a more segmented size system that suits the physique of current female soldiers and to devise appropriate solutions for improving motion suitability. This study is meaningful for its evaluation of the current combat uniform of female soldiers, and it is expected to serve as a reference for the future development of military combat uniforms for this group.

• Journal of Fashion Business
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• v.24 no.4
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• pp.48-62
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• 2020

Originating in South Korea, Taekwondo has been globally popular among individuals who desire to improve their health in a unique fashion. The Taekwondo uniform, one of the essential factors within the sport, needs to possess both functionality and size suitability to support dynamic movements within Taekwondo. This study investigated the development of patterns in Taekwondo uniforms by suggesting patterns that reflect physical suitability derived from appearance tests and movement functionality tests of the uniforms. More specifically, we selected a sample uniform and conducted a dressing test, which considered both the aesthetics and the functionality of the garment. Then, we considered size suitability, which allowed us to design practical Taekwondo uniform patterns that encompassed more variation in body sizes of both men and women. The result of the dressing test was that women's uniforms typically required more factors compared to men's uniforms due to women's relatively smaller physiques. Based on this result, we revised the pattern to also encompass the minor differences in uniforms between men and women. In the end, the Taekwondo uniforms for women required more modifications than those for men.

• Journal of the Korean Society of Clothing and Textiles
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• v.29 no.12 s.148
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• pp.1535-1545
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• 2005

The study aimed firstly, to develop the women's bodysuit sleeve block construction method adopting the appropriate pattern reduction rates according to the fabric stretch property. Secondly, the details applied to the bodysuit sleeve block drafting (Dr the educational and industrial usage were proposed. For these, several distinguishing bodysuit sleeve pattern making methods(i.e. Joseph-Armstrong: T1, Shoben & Ward: T2, Esmod: T3 and Mixed Joseph-Armstrong: T4) were analyzed and divided into two categories that adopt 1) the equally (i.e., T1) and 2) the differently(i.e., T2, T3 & T4) distributed front and back armhole length measurements. Women's sleeve samples were made for the research using the same stretch fabric($50\%\;and\; 70\%$ in wale and course each) to the previous research. A group comprising 5 relevant experts evaluated the fit and comfort features of the samples. Experiments analyzed the appearance of sleeve samples focused on total 13 evaluation parts(including the front/side/back fit tolerance, sleeve centre line, sleeve length, appropriateness of the sleeve appearance balanced with the bodysuit and etc.): and performed the comfort test evaluating three kinds(vertical-front/vertical-side/ horizontal) of arm movements. The most appropriate bodysuit sleeve to fulfil the original aims of the study was suggested. The findings and suggestions throughout the study were: 1) the measurements and required reduction rates for the bodysuit sleeve block developed: outer sleeve length (with 1.0 RR), crown height(with 0.7 RR), front and back armhole lengths measured on the bodysuit blocks ($0\%$ ease amount), elbow width(0.9/0.95 RR), wrist girth measurements(from $12\%\;to\;18\%$ tolerances can be given to): and 2) the differently distributed front and back armhole length measurements resulted in the better fit and comfort through the research.

• Journal of the Korean Society of Clothing and Textiles
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• v.25 no.10
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• pp.1754-1762
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• 2001

본 연구의 목적은 적합성과 기능성이 고려된 체형별 남성 상의 원형 패턴을 개발하는데 있다. 피험자는 인체계측자료와 측면체형 사진에 의해 선정하고, 체형은 굴신체형, 표준체형, 반신체형으로 분류하였다. 체형별 실험 원형 패턴의 평가를 위하여 기존원형을 선정하였으며, 연구 결과는 다음과 같다; 1. 착의평가 결과 표준체형은 대부분의 항목에서 적합하였으나, 굴신체형과 반신체형에서는 많은 차이가 있었다. 이러한 차이는 앞길이와 등길이 뿐만 아니라 여유량과 윗 가슴둘레에 서 나타난다. 앞품과 뒤품은 외관에 의해 많은 영향을 받으며, 증가된 옆품은 앞품과 뒤품의 부족분을 보충하는 역할을 하였다. 따라서 실험패턴은 기존패턴보다 각 체형에 더욱 적합하며, 체형 적합성과 동작기능성이 고려된 의복 제작을 위한 패턴설계는 인체의 구조와 동작연구에 의해 가능하였다. 2. 기본원형 패턴 설계를 위한 필요치수는 목뒤높이, 등길이, 앞길이, 윗 가슴둘레, 앞품과 뒤품이며, 체형분류의 기준은 윗 가슴둘레, 앞품, 뒤품, 앞길이, 등길이이다. 이와 같은 결과를 근거로 가슴둘레 선은 [(B/2+B/10), 뒤진동깊이는 [(B/10+목뒤높이/10)]로 설정하고, 앞내림은 1.5cm로 하였다.

• Journal of the Korean Society of Clothing and Textiles
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• v.37 no.6
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• pp.750-763
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• 2013

This research suggests pattern design methods for motion through an evaluation of the appearance and motion of three existing kinds of original patterns (K type, N type, and L type) and modified patterns designed by the researcher. The results of the study are as follows. First, the evaluation of appearances showed that the modified patterns of a standing posture received a higher evaluation compared to the original patterns only in N type and in a sitting posture. In addition, the degree of lowering or a natural feel by the pulling of the slacks waist belt in a sitting posture received a higher evaluation than the original patterns. Second, the evaluation of motions showed that modified patterns received a higher evaluation than the original patterns in almost all items. Per each pattern, it showed meaningful differences in questions asking about the degree of comfort as the whole in N type in crouching motions. The L type showed low scores as a whole (both in original patterns and modified patterns) and the K type showed meaningful differences in questions asking about the degree of comfort of the crista iliaca and groin region in the motion of walking at a normal walking pace, ascending stairs and bending the waist 90 degree to the front. Third, the measuring distance the between back waist point of the body and the back waist point of original patterns and modified patterns during motions showed that the modified patterns of all three patterns (N type, L type, and K type) showed less lowering compared to the original forms in the whole pattern as well as individual patterns. The design method of back waist point developed in this research can be regarded as a design method appropriate for motions.

• Proceedings of the Materials Research Society of Korea Conference
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• 2011.05a
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• pp.28.1-28.1
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• 2011

비휘발성 저항 메모리소자인 ReRAM은 간단한 소자구조와 빠른 동작특성을 나타내며 고집적화에 유리하기 때문에 차세대 메모리소자로써 각광받고 있다. 현재, 이성분계 산화물, 페로브스카이트 산화물, 고체 전해질 물질, 유기재료 등을 응용한 저항메모리소자 응용에 대한 연구가 활발히 진행되고 있다. 그 중 ZnO 박막은 이성분계 산화물로써 조성비가 간단하고, 빠른 동작특성을 나타내며, 높은 저항 변화율을 보이기 때문에 ReRAM에 응용 가능한 재료로써 기대되고 있다. 또한 가시광선 영역에서 광학적으로 투명한 특성을 보이기 때문에 투명소자 응용에도 많은 연구가 진행되고 있다. 본 연구에서는 Metal/Insulator/Metal (Al/ZnO/Al) 구조의 소자를 제작하여 저항 메모리 특성을 평가하였다. Radio frequency (RF) sputter를 이용하여 ZnO 박막을 합성하고 박막의 결정성을 평가하였으며, resistive switching 효과를 관찰하였다. 합성된 박막 내부의 결정성은 메모리 구동 저항에 영향을 주며, 이를 제어하여 신뢰성있는 메모리 효과를 얻을 수 있었다. 특히 박막의 두께를 제어함으로써 구동전압의 변화를 관찰하였으며 소자에 적합한 두께를 평가할 수 있었다. 또한, ZnO 박막 내의 결함에 따른 on/off 저항의 변화를 관찰할 수 있었다. 제작된 저항 메모리소자는 unipolar 특성을 보였으며, 높은 on/off 저항의 차이를 유지하였다. Scanning electron microscope(SEM)을 통해 합성된 박막의 형태를 평가하였고, X-ray diffraction (XRD) 및 transmission electron microscopy (TEM)을 통해 결정성을 평가하였으며, photoluminescence (PL) spectra 분석을 통하여 박막 내부의 결함 정도를 평가하였다. 제작된 소자의 전기적 특성은 HP-4145를 이용하여 측정하고 비교 분석하였다.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2007.05a
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• pp.51-52
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• 2007

미래의 '정보전장'에서는 모든 전투 개체가 실시간 정보를 공유하면서 작전을 수행하게 되며, 병사 또한 하나의 체계로 임무를 수행하기 위해 각종 디지털 디바이스가 내장된 스마트 전투복을 입게 될 것으로 생각된다. 선진국들은 여러 해 전부터 스마트 전투복을 개발하고자 하는 노력을 기울여 왔으며, 우리나라에서도 이에 동참하고 있다. 그러나, 각종 병사 구성품과 디지털 디바이스를 의복 내에 포함시켜 설계함에 있어서 병사의 동작과 체형에 적합한 설계안을 도출하기 위하여 프로토타입을 착용한 후 그 사용성을 평가할 필요성이 대두되었다. 본 연구는 미래병사의 전투력 향상을 위해 각종 디지털 디바이스를 내장한 스마트 전투복의 사용성을 평가하는 기술을 개발하는 것을 목적으로 한다. 이를 위해 본 연구에서는 선행연구에서 개발된 스마트의류의 사용성평가 척도를 이용하여 디지털 디바이스 내장형 전투복 프로토타입의 사용하여 사용성평가의 척도를 새롭게 개발하고 스마트 전투복의 사용성 평가 척도와 기술을 개발하였다.

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2016.11a
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• pp.116.1-116.1
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• 2016

반도체 가스센서에서는 가연성 및 탄화수소계 가스를 감지 하기 위해서 $100{\sim}500^{\circ}C$ 이상의 동작온도를 필요로 한며, 이에 따라 반도체식 가스센서의 마이크로 히터 소재는 고온에서 열적 안정성이 있는 소재가 요구된다. 현재 상용화되고 있는 반도체식 가스센서는 실리콘(Silicon) 기반의 MEMS 기술을 이용한 가스센서이며, 구조적으로나 성능적 한계가 드러남에 따라 실리콘 이외의 다양한 재료의 MEMS 응용기술 개발이 필요한 실정이다. 본 연구에서는 이러한 실리콘의 재료적 한계를 극복하기 위해 다공성 알루미늄 산화물(AAO)을 기판으로 사용하여 마이크로 히터를 제작하였다. AAO의 제작에 앞서 CMP, 화학연마, 전해연마를 이용하여 적합한 전처리 공정을 선정하였고, AAO 제작 시 온도, 시간, 전압의 변수를 주어 마이크로 히터 기판에 적합한 공정을 탐색하였다. 마이크로 플랫폼은 MEMS 공정으로 제작되었으며, PR(Photo Resist)을 LPR(Liquid Photo Resist)과 DFR(Dry Film Resist)로 각각 2종 씩 선택하여 AAO에 적합한 제품을 선정하였다. 제작된 마이크로 히터는 $1.8mm{\times}1,8mm$로 소형화 하였고, 열손실의 제어를 위해 열확산 방지층을 추가하였다. 구동 온도, 소비전력, 장시간 구동시 안정성의 측정 및 평가는 적외선 열화상 카메라와 kiethly 2420 source meter를 이용하여 측정하였으며, 열확산 방지층의 유 무에 따른 온도 분포 및 소비전력을 비교평가 하였다. 최종적으로는 현재 사용화 되어있는 가스센서들의 소비전력과 비교 평가 하여 논의 하였다.

• Science of Emotion and Sensibility
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• v.24 no.4
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• pp.129-138
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• 2021

This study aimed to determine the effects of the shape and attachment position of stretchable textile sensors coated with carbon nanotube on their performance when used to measure children's joint movements. Moreover, the child-safe requirements for fabric motion sensors are established. The child participants were advised to wear integrated clothing equipped with the sensors of various shapes (rectangular and boat-shaped) and attachment positions (at the knee and elbow joints or 4 cm below the joints). The voltage change induced by the elongation and contraction of the fabric sensors was determined for arm and leg flexion-extension motions at 60 deg/s (three measurements of 10 repeats each for 60°and 90°angles, for a total of 60 repetitions). Their dependability was determined by comparing the fabric motion sensors to the associated acceleration sensors. The experimental results indicate that the rectangular-shaped sensor affixed 4 cm below the joint is the most effective fabric motion sensor for measuring children's arm and leg motions. In this study, we designed a textile sensor capable of tracking children's joint motion and analyzed the sensor shape and attachment position on motion sensing clothing. We demonstrated that flexible fabric sensors integrated into garments may be used to detect the joint motions of the human body.