• 한국운동역학회지
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• 제31권4호
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• pp.290-296
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• 2021

Objective: The purpose of this research is to examine the effects of three types of different running shoes with different properties on impact variables (PVRGF and VLR) and the lower extremity joint's dynamic stability variables (LyEs of DPA, IEA, FEA, DPAV, IEAV, and FEAV) during running. Method: The participants in this research were 12 males (Age: 22.0 ± 3.3 years, Height: 177.2 ± 4.1 cm, Weight: 74.3 ± 9.6 kg). One type of N company's running shoes and two types (FA, FB) of F company's running shoes were used. As for the properties of the running shoes, thickness (mm), dwell time (ms), peak acceleration (m/s2), and energy return (%) were measured. The motions running at 3.5 m/s on a treadmill (Instrumented treadmill, Bertec, USA) wearing each type of running shoes were analyzed. Results: Although the VLR of the thick running shoes (FB) was smaller than that of the other running shoes (N, FA), the LyEs of PVGRF and DPA were larger (p<.05). Even though the running shoes' dwell time (i.e., impact absorption time) and peak acceleration showed a positive correlation with the LyEs of DPAV, IEAV, and FEAV, the energy return showed a negative correlation (p<.05). Conclusion: Our results indicated that the running shoes with excellent impact absorption function are predicted to be suitable for running beginners who need to reduce the burden of the lower extremity joint during running. The running shoes with excellent energy return are expected to be suitable for mid-and long-distance running elite athletes or marathoners to whom stability and consistency are essential during running.

• 한국컴퓨터정보학회논문지
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• 제26권1호
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• pp.179-188
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• 2021

본 연구에서는 전남 서남 지역에서 해양 레저스포츠를 즐기는 피험자를 대상으로 해양 레저스포츠 의류의 구매실태, 착용실태, 구매 만족도, 선택기준, 개선사항 등을 조사하여 연령, 체형 등과의 상관관계와 변인 간의 상관관계를 분석해보고자 하였다. 자료분석에는 SPSS Ver. 26.0 프로그램을 사용하였다. 해양 레저스포츠 참여동기와 선택기준 간의 상관관계에서 체력증진을 위해 참여하는 경우 착용감을 기준으로, 여가나 취미생활로 참여할 경우 디자인, 색상을 기준으로 선택하였다. 선택기준과 구매 만족도와의 관계에서 활동성, 다른 용도 활용성을 기준으로 선택하면 가격면에서 만족하지 못하였다. 체형에 따른 선택기준은 큰 삼각형과 사각체형은 가격, 유행을 기준으로, 역삼각형은 신축성을 기준으로 의류를 선택하였다. 연령별 선호색상은 40대는 파랑계열을, 다른 연령대는 무채색을 선호하였다. 추후 연구에서는 해양 레저스포츠 종목별 선호도에 대한 연구도 이루어져야 할 것으로 생각된다.

• 한국환경보건학회지
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• 제47권3호
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• pp.292-301
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• 2021

Objectives: Wearing medical masks has been recommended since the declaration of coronavirus disease-19 (COVID-19) as a pandemic disease. Certified medical masks are evaluated according to filtration efficiency and facial inhalation resistance. However, some people use non-certified common masks. This study aimed to evaluate various non-certified commercial masks based on the certification criteria for medical masks. Methods: Twenty mask products (three anti-droplet, three disposable dental, eight fashion, three cotton, and three children's masks) were selected. For performance evaluation, filtration efficiency and facial inhalation resistance tests were conducted. The evaluation method followed the certification method for KF-certified masks of the Ministry of Food and Drug Safety (MFDS) and the N95 respirator of the National Institute for Occupational Safety and Health (NIOSH). Results: None of the 20 masks met the KF94 certification standard set by the MFDS. Four and three masks respectively met the KF80 certification standard and the N95 standard of NIOSH. Filtration efficiency was significantly higher in three-layer masks than in single layer masks. Pleated-type masks had higher filtration efficiency than cone-type masks. There was no correlation between the structure of masks and facial inhalation resistance. Conclusion: While no masks complied with the KF94 certification standard, a few masks met the KF80 and the N95 certification standards of NIOSH. Although some people wear non-certified commercial masks, protection from aerosols is not guaranteed by such masks. Evaluation of the protection efficiency of non-certified mask against microbiological infection is needed for the prevention of infectious disease.

• 한국의류산업학회지
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• 제22권6호
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• pp.862-872
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• 2020

This study explores the effects of facemasks on respiratory, thermoregulatory, cardiovascular responses during exercise on a treadmill and at rest. Five male subjects (25.8 ± 0.8 y, 171.8 ± 9.2 cm in height, 79.8 ± 28.1 kg in weight) participated in the following five experimental conditions: no mask, KF80, KF94, KF99, and N95. Inhalation resistance was ranked as KF80 < KF94 < N95 < KF99 and dead space inside a mask was ranked as KF80 = KF94 < N95 < KF99. The surface area covered by a mask was on average 1.1% of the total body surface area. The results showed no significant differences in body core temperature, oxygen consumption (VO2), carbon dioxide production (VCO2), heart rate or subjective perception among the five experimental conditions; however, cheek temperature, respiratory ventilation and blood pressure were greater for KF80 or KF94 conditions when compared to KF99 or N95 conditions (p<0.05). The differences among mask conditions are attributed to the dead space or specific designs (cup type vs pleats type) rather than the filtration level. In addition, the results suggest that improving mask design can help mitigate respiratory resistance from increased filtration.

• 복식문화연구
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• 제29권6호
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• pp.795-809
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• 2021

The purpose of this study was first, to clarify the clothing benefits that Uzbek female college students seek through clothing products; and second, to determine whether there is a difference in clothing involvement and clothing purchasing behavior according to the type of clothing benefits. Data were collected from 290 female university students from Tashkent, Uzbekistan, and analyzed using factor analysis, K-means group classification analysis, ANOVA, Duncan test, χ²-test, and frequency analysis. Respondents were classified into four types according to their clothing benefits: individuality/economy-pursuit, comfort-pursuit, fashion/brand-pursuit, and indifference. Significant differences were identified in terms of clothing involvement, information sources, clothing evaluation criteria, clothing store attributes, clothing wearing conditions (including monthly clothing expenses), number of purchases per year, clothing purchase location, clothing preference style, and clothing dissatisfaction. The fashion/brand-pursuit and personality/economy-pursuit types were influenced more by fashion and symbolism of clothing involvement, information sources, clothing evaluation criteria, and clothing store attributes. The individuality/economy-pursuit type purchased more frequently, spent more monthly clothing expenses, and used the internet. Clothing store attributes were considered more important by female students than the other attributes. In these results, clothing benefits were identified as consumer characteristics of female Uzbek college students and market segmentation was determined. In addition, it is meaningful in providing basic data for efficient marketing activities and minimizing trials and errors in establishing local-friendly strategies for target customers in different cultures.

• 한국음향학회지
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• 제41권1호
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• pp.99-107
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• 2022

본 연구는 학령기용 음소지각검사(Phoneme Perception Test for School-Aged Children, PPT-S)를 활용하여 보청기와 인공와우를 착용하고 있는 청각장애아동의 자음지각능력과 오류를 분석하고, 청각장애아동에 대한 검사 목록의 적합성을 확인하고자 하였다. 연구결과, 청각장애아동들은 초성에 비해 종성을 지각하는 데 어려움을 더 느끼는 것으로 나타났다. 목표어와 보기어의 조음방법과 조음위치가 유사한 PPT-S의 어려운형을 쉬운형보다 더 어렵게 느꼈다. 초성은 기식음에 대한 오답률이 더 높았고, 종성의 경우 'ㄷ'와 'ㅁ'에 대한 오답률이 상대적으로 더 높았다. 검사자의 성별에 따른 정답률에 유의미한 차이는 나타나지 않았다. 이상의 결과는 청각장애아동 대상 음소지각검사의 표준화와 청능재활 전·의 중재효과를 평가하기 위한 기초자료로 유용하게 사용될 수 있을 것이다.

• 복식
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• 제34권
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• pp.169-182
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• 1997

Focusing on khotan located in the southern Silk Route which was one of the most important kingdoms in the Tarim Basin this study attempts to examine the changes of costume in Khotan by compar-ing the costumes in the painted panel showing the story of silk princess with the excavated costumes from ancient tombs. Furthermore this study attempts to inves-tigate the impacts of cultural exchange be-tween China and its western neighboring country Eastern and Western Turkestan on costume. Excavated costumes from the Shanpula ancient tomb in the region of Khotan and from ancient Niya in the esat-ern border of Khotan and discoveries from Rawak and Dandan-oilik near by Yotkan the ancient capital of Khotan are exam-ined. Basic Khotan's costume was the two piece style of tops and trousers. Over the basic costume wearing a top wear with half sleeves was popular. Skirt was worn by women. Even though there were many kinds tops were classified into the two types kaftan and tunic. Thouth Khotan maintained a association with China for a long time the style of Khotan costume had imbued to China. Top wear with half sleeves was worn frequently in Khotan. Also in China top wear with half sleeves was worn as over-wear which was called ban-xiu ban-bi bei-zi Costume style of China is covering the body profoundly and wrapping front edge toward the right. The types of chi-nese top wear with half sleeves for exam-ple round-neck·confronting front edge crossing-neck·confronting front edge tu-nic type discord with the traditional chi-nese costume style There were many cas-es that half sleeved top wear was worn as over wear in T'ang dynasty. The phenom-enon was due to the prevalence of 'ho' (foreign) and half sleeved top wear was introduced by the countries to the west of China Khotan. A round neck garment was a general type for the men of cuntries to the westof China. Also Chinese wore round neck garment since South and North Dynasty The type of Chinese round neck garment was not tunic but kaftan. From costume relics and ancient paintings the type of Khotan's round neck garment was tunic which was recorded on the Chinese histori-cal documents as " guan-tou-shan" that is tunic the type of persian costume, Even thgough the painted panel showing the sto-ry of silk princess was made in the it me when Turks was a dominion on Central Asia Khotan's costume style was not changed toward Turk's costume style and remained tunic style.

• 한국생활과학회지
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• 제6권2호
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• pp.121-131
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• 1997

This study was to design the clean room garment which fits for a body and adjusts well to the action. We examined the body's changes in action through a body measurment and made a sample of the clean room garment to which had adapted the body's changes in action and evaluated the function and the appearance compared with the existing the clean room garment. The followings were summery of the results : 1. Back intersyce breadth decreased, trunk length increased and the other parts were not change. At a posture of raising hands($M_3$) in comparison with an upright posture($M_0$). Back intersyce breadth, hip length and knee length increased and the other parts were a little change. At a bowing posture($M_2$) in comparison with an upright posture($M_0$). Back hip girth, knee length, hip length and leg length increased and the other parts were not change. At a working posture on a chair($M_1$) in comparison with an upright posture($M_0$). 2. The overall clean room garment was made increasing on the changes of part of a body through measuring and body measurement. 3. From the test of the function, it became known that the devised clean room garment was superior to the existing one in the parts of neck, shoulder, armpit and elbow at a working posture on a chair($M_1$), in the parts of neck, shoulder, and armpit at a bowing posture($M_2$), and the armpit at a posture of raising hands($M_3$). The appearance was better on the whole. 4. From the examination of photographs, the waist line of the devised clean room garment was not so much pulled up as that of the existing one on moving. And when sitting down on a chair, the waist line of the existing one was pulled down while that of the devised one had no change. As above, we investigated the actual conditions of wearing the clean room garment and measured the body's changes according the various actions. So we applied these results to the devised clean room garment but we couldn't research the clean mom effect of it owing to not obtaining the measuring instrument. The aspect of ergonomics liked the feeling of wearing and fitted to the action must be given consideration to the clean room garment, and simultaneously the dust-resistant effect must be taken into consideration in order to improve the quality of the goods. Therefore, we think it should be continued the research on the dust-resistant effect, material, washing method, quality control, and size along with the aspect of ergonomics.

• 디자인학연구
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• 제17권4호
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• pp.191-200
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• 2004

발의 건강은 개인의 건강과 직결되어 인체 활동의 능률에 직접적인 영향을 미친다. 발의 기능을 효과적으로 보조하고 있는 도구로서의 신발은 발을 보호하면서 지면으로부터의 충격을 흡수하도록 설계되어야 하는 데 디자인과 함께 착용성, 기능성, 그리고 경제성의 세 가지 요건이 요구된다. off-line 상점에서의 신발 구매는 소비자가 직접 신발을 착용해 봄으로써 어느 정도 자신의 발에 맞는 신발을 선택할 수 있다. 그러나 On-Line의 경우에는 여러 가지 문제점이 발행한다. 첫째, 소비자 혼자의 힘으로 구매와 관련된 정보 탐색과정을 진행해 나가야 하기 때문에 소비자의 인지적 부담이나 절대적인 정보 처리능력은 한계를 나타낼 수밖에 없으며, 둘째, 소비자들은 구매과정에서의 디자인, 착용기능성 등과 같은 중요한 정보를 정확하게 전달받지 못하기 때문에 신중한 판단을 내리지 못하는 것이다. 상기 내용을 살펴볼 때 사용자 중심의 인터넷 쇼핑에 대한 해결방안은 사용자들이 쉽게 접근할 수 있는 새로운 형태의 Prototype의 개발이며, Prototype에 따른 Interface를 통해 3D 가상현실로 내용면에서 소비자들이 정확한 판단을 할 수 있도록 정보를 시각화하여 전달하는 것이다. 이에 따른 본 연구의 목적은 기존의 신발류 인터넷 구매 사이트의 문제점을 고찰하여 개선된 신발류 이지오더 Prototype을 개발함으로써 신발류 착용 적합성에 관한 인터넷 구매의 위험성을 줄이고 구매의 편의성을 제공하고자 하는 것이다. 1. 소비자가 자신이 선택한 신발에 대한 2D 평면화를 출력해 봄으로써 자신의 발 사이즈 및 형태와 직접 비교할 수 있도록 하는 것이다. 2. 3D 가상현실로 이지오더 Prototype을 개발함으로써 소비자는 구매하고자 하는 신발의 디자인에 대해서 소비자 중심의 이미지를 최대한 경험할 수 있게 하는 것이다. 그리고 이상의 연구 결과는 각종 산업제품 뿐 아니라 향후 거동이 불편한 장애인들을 위한 신발류의 이지오더 Prototype 개발에도 큰 영향을 미칠 수 있는 중요한 사례가 될 것이다.

• 한국안광학회지
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• 제19권1호
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• pp.111-120
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• 2014

목적: 콘택트렌즈의 함수율, 재질, 굴절력의 차이에 따른 착용전후의 각막의 형태 변화를 살펴보고자 하였다. 방법: 5가지 유형의 콘택트렌즈를 사용하여 렌즈 착용 전후의 두께차이를 비교하였다. 각막의 중심부와 각막 중심에 떨어진 거리와 방향에 따른 렌즈 착용 전, 후의 각막의 두께, 각막 전, 후면 곡률, 고위수차의 변화를 조사하였다. 측정에 사용된 장비로는 ORB ScanII(Bausch & Lomb Inc, ver 3.14)로 각막 지형도 및 각막 두께를 측정하였으며, 고위수차(high order aberration) 분석을 위하여 Zywave(Bausch & Lomb Inc, ver 5.20)를 사용 하였다. 결과: 산소투과가 낮은 하이드로겔 재질의 소프트 콘택트렌즈(T2 lens)에서 각막의 두께가 증가하는 경향이 두드러지게 나타났다. 각막 중심에서 가장 많은 변화를 보였으며, 중심에 가까울수록 변화정도가 증가하였다. 각막의 방향에 있어서는 코 쪽이 가장 많이 변하였다. 결론: 본 연구에서 사용한 함수율, 재질, 디자인이 다른 5종의 콘택트렌즈 중 Dk가 28이상의 산소투과도를 가진 렌즈에서는 각막의 형태 변화가 적었으며, 산소투과도가 매우 낮은 렌즈에서 가장 많은 각막형태의 변화가 나타났다.