• The International Journal of Costume Culture
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• 제8권2호
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• pp.97-104
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• 2005

In this research, the fit of basic dresses was examined, by analyzing and comparing the satisfaction of fitness of basic dresses made by the draping method on a custom-made replica body form and that of a basic dress made by the flat pattern method. Basis dresses were produced by the draping method for each 52 subjects using custom-made body forms, and another kind basic dresses for each subjects were produced by the flat pattern method using measurements of body sizes. Both basic dresses received high scores for the satisfaction of fit, but the basic dresses produced by draping method received higher scores. Thus it is expected to produce a more successful fit by draping a basic dress on a custom-made body form. Future research using more subjects might confirm these results. A more concrete analysis through using additional satisfaction tests could be conducted. For example, each subject might also serve as an evaluator to rate her satisfaction of fit wearing each of the two custom-made dresses. Finally, examining various body forms is suggested.

• 한국안광학회지
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• 제14권3호
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• pp.17-27
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• 2009

목적: Tight fit 상태에서 BC, 직경, 모서리각 등 하드(RGP 포함) 콘택트렌즈의 변수가 렌즈의 평형위치에 복귀하는 시간에 미치는 영향을 고찰하였다. 방법: Tight fit 상태에서 여러 렌즈 변수에 대해 렌즈의 평형위치 이탈 거리에 따른 복원력 및 렌즈 아래 눈물 층 두께를 계산할 수 있는 방정식을 세웠다. 이에 근거하여 눈깜빡임 후 매 순간 렌즈의 위치를 예측할 수 있는 미분방정식과 수치계산 프로그램 모델을 수립하였다. 이 컴퓨터 모델을 사용하여 렌즈 변수 변화에 따른 매 순간 렌즈 위치를 예측할 수 있었다. 결과: Tight fit 상태에서는 BC가 감소할수록, 직경이 커질수록 렌즈 아래 눈물 층의 간격이 두꺼워져 점성저항이 감소하며 결과 평형위치 복귀시간이 단축된다. Tight fit 렌즈는 모서리 각도가 증가할수록 복원력이 증가하여 평형위치 복귀시간이 단축된다. 이 경우 렌즈아래 눈물 층의 간격변화는 없다. Flat fit 상태에서 하드(RGP 포함) 렌즈는 BC가 증가할수록, 직경이 커질수록 렌즈 아래 눈물층의 간격이 두꺼워져 점성저항이 감소한다. 결과 평형위치 복귀시간이 단축된다. 이 경우 모서리각은 운동에 거의 영향을 끼치지 못한다. 결론: Tight 및 flat fit 상태 모두에서 BC가 렌즈운동(평형위치 복귀시간)에 영향을 미치며 그 효과는 서로 반대이다. 렌즈의 모서리각은 tight fit에서만 렌즈운동에 영향을 미친다.

• 한국의류학회지
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• 제44권2호
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• pp.193-208
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• 2020

This study investigated similarities and differences between 2D flat sketch, 3D virtual clothing and real clothing images. Flat sketch, 3D virtual clothing, and real clothing images of T-shirts and dresses were made. Questionnaires were prepared for fit evaluation, sensory evaluation, and location evaluation. A survey of 440 questionnaires was collected from Chinese women in their 20s and 30s. As results of the sensibility evaluation, 3D virtual clothing expressed real clothing images slightly more similar than a 2D flat sketch. As results of the fit evaluation of the dresses, 2D flat sketch and 3D virtual clothing were rated as slightly longer/wider, and real clothing images were rated as slightly shorter/narrower. The results suggested that presenting 3D images with avatars as 3D virtual clothing images will provide more accurate fit evaluation results. This study presented possibilities and methods for apparel companies to utilize 3D system as an effective apparel production tool.

• 한국안광학회지
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• 제3권1호
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• pp.33-37
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• 1998

렌즈 중심잡기는 베이스 커브에 의존함을 알 수 있는데, flat한 렌는는 중심에서 더 이탈되었고, 주변부로 움직임이 크게 나타났다. 대부분의 경우 중심이탈은 위쪽 또는 귀쪽이었다. 또 더 flat한 렌즈를 장용한 환자가 장용감에 대한 불편함을 느꼈다. 세 개의 K값 영역에서 최적상태로 피팅된 상태는 베이스 커브가 8.4mm일때였으며 베이스 커브가 커짐에 따라 최적조건은 줄어들었다.

• 한국안광학회지
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• 제16권1호
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• pp.97-106
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• 2011

목적: 구면 콘택트렌즈(렌즈)가 각막에 피팅되는 경우 렌즈가 각막을 누르는 힘(압력, 부착력)을 tight 및 flat 피팅 별로 이론적으로 비교 분석하였다. 방법: Tight 및 flat 피팅 상태에서 렌즈의 각막 부착력을 계산할 수 있는 방정식 및 수치해석 프로그램(모델)을 수립하였다. 이 모델에 근거하여 BC, 직경, 두께, 모서리 형상 등 제반 렌즈변수와 각막형상(각막의 장축/단축 비, p) 변화에 수반되는 렌즈의 각막부착력을 tight 또는 flat 피팅 별로 예측/해석하였다. 결과: 각막의 p값이 증가할수록 각막부착력은 증가한다. p 값 증가에 따른 부착력 상승은 flat 피팅 경우가 tight에 비해 월등히 크다. 렌즈의 BC가 증가할수록 각막부착력은 flat 피팅에서는 큰 폭으로 감소하는데 반해 tight 피팅에서는 그 증가가 미미하다. 렌즈 직경이 증가할수록 각막부착력은 tight/flat 피팅 모두에서 미미하게 감소한다. 렌즈의 모서리형상(모서리각도 ${\Psi}$)과 렌즈두께는 tight 피팅에서만 영향을 미치는 요소들이다. Tight 피팅된 렌즈가 각막을 누르는 힘은 모서리 각도에 비례하여 증가한다. Tight 피팅 렌즈는 두께가 증가할수록 렌즈가 각막을 누르는 각막부착력은 두께에 반비례로 감소한다. 결론: 피팅상태의 렌즈가 각막을 누르는 힘에 가장 크게 영향을 미치는 2 가지 요소는 각막의 만곡도와 렌즈의 BC이다.

• 한국의류학회지
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• 제27권8호
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• pp.946-957
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• 2003

This study aimed to suggest a simple and well-fitting flat pattern drafting method for a men's jacket. Four jackets in thick muslin were made from four different drafting methods utilizing a few measures as breast girth, center back length, and chest width, which were not much different from the drafting methods of woman's jacket. The appearance of the 4 jackets was evaluated by a pool of evaluators consisted of graduate students who had much clothing construction teaching experiences and their motion adaptability was evaluated by two wearers who belonged within the range of the average measures of the Korean male figure as reported from the 1997's Census for Standard Body Measure. A drafting method evaluated as the most well-fitting and well-functioning in general was chosen and modified to enhance the appearance and was reevaluated to confirm its fit improvement. As a result of this study, a new drafting method, simple and not much different from that of a woman's jacket pattern drafting method is proposed. Since this method is based on the minimal measures and ratios thereof, and is not as complicated as ordinary drafting methods for men's wear, the researcher expects that this drafting method allows more chances for the students to learn and understand men's wear more easily and comfortably.

• 한국안광학회지
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• 제16권1호
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• pp.107-116
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• 2011

목적: 콘택트렌즈 피팅 시 렌즈 관련 사양의 변화에 따라 다른 값을 가지는 각막에서 산소부족이 없는 최소 Dk값 및 산소농도를 계산/확인할 수 있는 프로그램을 수립하고자 하였다. 방법: 엑셀 프로그램을 이용하여 콘택트렌즈착용 시 렌즈 아래 형성되는 눈물층의 두께와 Dk값을 계산할 수 있는 방정식을 세우고 수치 계산 모델을 확립하였다. 결과: 렌즈사양을 변화시키면 렌즈 아래 눈물층의 두께가 변하며 이에 따라 산소투과도가 다르게되므로 각막이 요구하는 최소 산소농도 역시 달라짐을 계산으로 확인하였으며, 눈물층의 두께를 위한 계산 프로그램은 눈물층의 형태에 따라 다르게 선택되어야 함을 밝혔다. 즉, flat 피팅 시에는 렌즈가장자리와 각막이 만나서 만들어지는 오목면의 형태에 따라 렌즈 아래 눈물층의 두께가 결정되며, flat하게 피팅 될수록 각막주변부 표면의 산소농도는 감소되어 계산값으로는 (-)가 되며 실제로는 산소농도는 0이 된다. Tight 피팅 시 각막표면의 산소를 계산하면 tight 피팅으로 눈물층의 두께가 렌즈의 두께보다 극단적으로 두꺼워지게 되어 계산값은 역시 (-)가 되며 각막 표면의 산소 농도는 0이 되어 산소결핍을 야기하게 됨을 알 수 있다. 결론: 콘택트렌즈의 변수를 조절하여 피팅 상태를 변경할 때에는 눈물층의 두께와 이에 따른 각막표면의 산소농도를 정확하게 계산하여 산소결핍이 나타나는 일이 없도록 하여야 한다.

• 한국의류산업학회지
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• 제17권2호
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• pp.227-236
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• 2015

This study analyzed the lower body type of 30's Korean men to develop a slim-fit pants pattern. As the analysis data, direct measurement data of anthropometric measured value in the 6th Size Korea(KATS, 2010) was used as basic data with 481 men in 30's as analysis objects. The result are as follows. First, the result of analyzing factors for the lower body type classification indicated five factors. Second, the result of executing group analysis (with the independent variable of 5 clusters extracted from the factor analysis)classified the following three types. Type 1(36.8%) displayed a medium height of lower body type, small waist and hip, slim and fit body type with a slim shape between the knee and ankle. The shape between the waist and hip had characteristics of a slight curve and short length. Type 2(35.6%) displayed lowest height of a lower body type that was large and thick between the waist and the hip. The drop value of the waist and the hip was small; therefore, the body type was flat with a minimal curve. The underpart type (below the knee) was the thickest and the length was short. Type 3(27.7%) displayed the highest lower body type, a medium level waist size, flat and narrow waist and belly. This body type had a curve with big drop value of the waist and the hip, lower part from the hip to the ankle (including the knee) and a thick calf with along leg.

• 복식문화연구
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• 제18권5호
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• pp.892-907
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• 2010

The purpose of this study was to compare torso pattern made by draping and flat pattern method in terms of the size of breast. The size of this study was classified as 75A and 75D according to the size of breast. Each torso pattern by the combination of the size and pattern method was compared and analyzed. In order to test the fit of the draping and flat pattern that was developed according to the size of breast, the outer appearance was evaluated. The results of the study were as follows: First, The most striking size difference was difference between the front and the back on bust line level, which decides on position of the side seam in comparison of size between draping and flat pattern of 75A and 75D. In the flat pattern, the difference between the front and the back in the size of breast was consistent regardless of a change in the size of breast. However, in the draping, the bigger breast led to the bigger difference between the front and the back on bustline level. Second, the flat pattern in 75D was evaluated to be the worst in 27 items among total 46 items for the evaluation of outer appearance in the draping and flat pattern of 75A and 75D. Third, regardless of size, the draping was evaluated to be more suitable in the areas related to neck, arm hole, and waist dart than the flat pattern. These results are suggesting that the draping is a method of reflecting characteristic of the body type more accurately than the flat pattern, and that the draping is a more suitable method than the flat pattern for the design of clothing pattern of the body type with big breast like 75D.

• Journal of Mechanical Science and Technology
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• 제18권10호
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• pp.1849-1858
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• 2004

For examining friction-factor characteristics of round-hole pattern surfaces which are usually applied on damper seals, flat plate test apparatus is designed and fabricated. The measurement method of leakage and pressure distribution along round-hole pattern specimen with different hole area is described and a method for determining the Fanning friction factor is discussed. Results show that the round-hole pattern surfaces provide a much larger friction factor than smooth surface, and the friction factor vs. clearance behavior yields that the friction factor generally decreases as the clearance increases unlike the results of Nava's flat plate test. As the hole depth is decreased, the friction factor is increased, and maximum friction factor is obtained for 50% of hole area. Since the present experimental friction factor results show coincident characteristics with Moody's friction factor model, empirical friction factors for round-hole pattern surfaces are obtained by using the Moody's formula based on curve-fit of the experimental data. Results of Villasmil's 2D CFD simulation support the present experimental test result.