• 한국생활과학회지
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• 제12권5호
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• pp.747-754
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• 2003

The actual clothing conditions were surveyed to diagnose clothing condition of Korean female in the view point of the adaptation to the thermal environment according to seasonal changes. Then, clothing microclimate, physiological responses, and subjective sensation were investigated through wearing trials on human body in climatic chamber based on the results from the survey. Factors to evaluate validity of clothing condition were clothing weight, clothing microclimate, physiological response of human body, and subjective sensation. The results were as follows: 1. Clothing weight per body surface area of the season was $856g/m^{2}$, $439g/m^{2}$ in summer, $630g/m^{2}$ in fall, and $1184g/m^{2}$ in winter. Cold - resistance of Korean female in office was superior to Japanese, inferior to residents of rural areas of Korea, and similar to male in office. However, in heat - resistance, female in office was inferior to residents of rural areas of Korea. 2. In spring, fall, winter, clothing microclimate temperature was a little higher than that in summer. Therefore, it was not a desirable wearing condition even though the clothing microclimate was comfortable zone. 3. Mean skin temperature of female in office was including within the range of Winslow's comfortable zone, but the range of comfortable zone in mean skin temperature of female was more narrow than Winslow's. Thus, it has problem for female to adaptation to thermal environment.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2002년도 학술대회지
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• pp.811-814
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• 2002

Using a mathematical theory, we show that the optimality condition of a turbulent diffuser with maximum pressure recovery at the exit is zero shear stress along the wall. The optimal diffuser shape is designed through iterative procedures by using the $k-{\varepsilon}-{\nu}^{2}-f$ turbulence model for flow simulation. The Reynolds number based on the bulk mean velocity and the channel height at the diffuser entrance is 18,000. We also perform large eddy simulation to validate the shape design results and investigate the flow characteristics near the zero-skin friction wall. Results from large eddy simulation show that the skin friction is slightly higher than zero but is still very small as compared to that of the flat plate boundary layer flow Although the time-averaged wall shear stress is slightly above zero along the diffuser wall, instantaneous flow reversals occur intermittently. The streamwise mein velocity shows an asymptotic behavior of the half-power-law near the wall where the skin friction is close to zero.

• 대한방사선기술학회지:방사선기술과학
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• 제23권1호
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• pp.13-19
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• 2000

We have presented with the "A study on overexposure rate according to over-density in chest X-ray radiography(I)" last year. In this report, We could calculate the entrance skin dose from chest X-ray film density the formula $I_0=Ix/e^{-{\mu}x}{\times}mG$, (mG is Bucky factor) was used to deliver the skin dose. At that time, There was two problems that the Bucky factor from maker was not equal to field experience and the field size influenced on the Attenuation Rate. The experiment of Bucky factor was done from film method and retried the Attenuation Rate of Acryle phantom according to Good & Poor geometry. As the results, The Bucky factor from maker higher than in this experiments $30{\sim}40%$. The Attenuation Rate in good geometric condition brings about a little alteration compare with poor geometric condition. In the field experiment, we could get the chest image with very low entrance skin radiation dose $29.3{\mu}Sv$, especially with air gap methode, the entrance skin dose was detected $10{\mu}Sv$.

• 동의생리병리학회지
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• 제25권4호
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• pp.755-758
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• 2011

Sasang Constitutional Medicine (SCM) suggests the concept of health condition which is owned of different properties by each Sasang Constitution. But SCM theory has concentrate to explaining different symptoms that distinguish health condition, not much concerned with practical methods like face features, pulse diagnosis, skin surface properties and voice features. Physical properties of practical diagnosis methods from literature finding have been researched. As a result, complexion and face moisture were described to be physical properties related to health State. In scope of pulse diagnosis, depth, rate, contour, width and pressure are related. Skin surfaces' elasticity, moisture, fraction properties were also suggested as factors of health State of Sasang Constitution. We assume that this study would contribute further studies for objectifying and quantifying diagnosis methods to evaluate health state grades of Sasang Constitution.

• 한방안이비인후피부과학회지
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• 제13권1호
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• pp.237-252
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• 2000

Pressure sore is an area of ulceration and necrosis of the skin and underlying tissues usually occuring over the bony prominences of the body after prolonged or often repeated pressure. We reviewed and summarized the published articles and treatise on the treatment of pressure sore. The results were as follows : 1. Pressure sore occur due to prolonged or often repeated pressure. So it is better than decubitus ulcer that is called pressure sore. 2. The most common lesions of pressure sore are sacrum, ischial tuberosity, greater trochanter. 3. The cause of pressure sore are change of comprehension. urine, moisture, change of the ability of activity and exercise, shearing force. 4. The elements to influence on wound healing are collagen accumulation velocity, nutrition condition, Vitamine C, copper, iron. oxygen pressure, steroids, cell-toxic drug, radiation. 5. Non-operative treatments are managements of skin such as avoiding consistant pressure, dressing, preventing moisture, understanding patient and protecter, preventing spasm, improvement of systemic nutrition condition. 6. Operative treatements are debridement, suture, skin transplantation, muscle flap and musculaocutaneous flap surgery. Recently V-${\Gammer}$ advancement surgery in use of muscle and musculocutaneous flap is generally maded. 7. Complications of post-operation are wound rupture, infection, disappearance of transmitted skin, necrosis of flaps.

• 한국산학기술학회논문지
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• 제13권7호
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• pp.2886-2894
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• 2012

본 연구는 서울소재 대학교에 재학 중인 여대생을 대상으로 피부미용전공과 비전공 여학생들의 피부건강관리의 관심도와 피부상태, 인식 및 관리 행위의 차이점 및 관련성을 파악하고자 하였다. 전공자들과 비전공자들의 대한 비교 분석은 동일한 생활권에서 궁극적으로 전문 학습과 비 전문학습의 일반적인 상태에 대한 지식과 행위를 의미하는 것으로, 연구결과는 다음과 같이 나타났다. 전공 여대생이 비전공 여대생에 비해 피부건강에 대한 관심도가 높은 것으로 유의미한 차이가 있었다(p<.01). 피부미용 전공 여대생은 복합성 피부, 비전공 여대생은 건성 피부가 많은 것으로 유의미한 차이를 보였다(p<.05). 피부 관리 실태에서 색조화장 후 전공여부에 따른 이중세안 정도, 각질 정리 횟수, 마사지나 팩 관리횟수, 선크림 사용 항목에서 각각 유의미한 차이가 있었다(p<.01, p<.001, p<.01, p<.01). 오백식품 및 인스턴트식품의 영향정도와 수분섭취 항목에서 각각 유의미한 차이를 보였다(p<.001).(p<.05). 화장품 사용은 다양한 채널을 통해 효율적인 구매를 하는 경향이었으며, 탁월한 기능이 있을 때는 경제적 부담이 있어도 구입 의향 항목에서 적극적인 성향인 것으로 유의미하게 나타났다(p<.001). 본 연구의 결과는 피부미용 산업 및 교육 분야에 기초자료로 활용되고자 하였다.

• 산경연구논집
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• 제10권8호
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• pp.25-32
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• 2019

Purpose - This study aims to explore women's beauty industry market and growth development by identifying the main factors of women's perception of skin health care. Research design, data, and methodology - The survey was conducted on women aged 20 to 60 living in Seoul. For the statistical analysis, frequency analysis, t-test and one-way ANOVA were conducted, and significant differences in p<0.05 were tested through the multiple range test of the Scheffe. The factor analysis was conducted to verify the validity of questions, and the reliability was determined by the coefficient of Cronbach's α. Results - The lower the age, the higher the perception of the skin, and women pay a higher price for skin health as a provisional customer. 'Acne care' was the most common skin condition (32.8%), 'life style' (79.8%) was the most important part of skin care. Final education was the highest level of skin care for women with a professional background (M=3.41) (F=4.028, p<.05). Conclusions - The differences in the recognition of health knowledge by age, marital status, and household monthly income were significant, but there was no difference between jobs and final education. Customers who use less skin care than customers who frequently use the skin care center were more aware of skin health, and women who have a high awareness of skin are more interested in aging and regenerating due to the skin care.

• 한국융합학회논문지
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• 제10권3호
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• pp.237-242
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• 2019

본 연구는 파라핀 왁스 마스크팩의 피부개선 효과를 확인하기 위한 연구이다. 연구 대상은 20대 성인 남녀 13명을 대상으로 시행하였다. 연구는 4주간 8회 대상자에게 파라핀왁스 마스크팩을 적용하였다. 파라핀왁스 마스크팩의 피부개선 효과를 확인하기 위해 피부 유 수분도, 피부 표면온도, 피부 부드러움 정도 및 피부상태 주관적 만족도를 측정하였다. 파라핀 왁스 마스크팩 도포 후 피부의 유수분도, 피부표면 온도가 상승하였으며, 피부 부드러움 정도와 유 수분도 및 피부톤의 내용을 포함한 피부 주관적 만족도도 개선되었음을 확인하였다. 따라서 본 연구결과 파라핀왁스 마스크팩은 피부개선에 효과가 있음을 확인하였고, 피부관리를 위한 피부미용기기 개발에 유용성과 가치가 있을 것이다.

• 한국산학기술학회논문지
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• 제10권5호
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• pp.1109-1114
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• 2009

딥 클렌징이 피부타입에 따른 피부 유, 수분변화에 미치는 영향을 알아보고자, 건성 및 지성피부의 20명을 대상으로 스크럽그룹과 효소그룹으로 나누어 주 1회 8주 동안 총 8회 딥 클렌징 관리를 실시하였다. 8회 관리 후 스크럽 그룹은 지성피부에서, 효소는 건성피부에서 유분이 유의하게 변화하였고 두 그룹 모두 피부타입에 따른 수분변화는 나타나지 않았다. 주관적 느낌을 알아보고자 실시한 설문지 결과는 유분변화가 유의한 결과가 나왔고 수분 및 민감도에서는 큰 변화를 느끼지 못하는 것으로 나타났다.

• 대한인간공학회지
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• 제15권2호
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• pp.71-88
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• 1996

For understanding skin temperature based on clothing design from a viewpoint of comfortable wearing, the skin temperature, physiological reactions(body temperature, blood pressure and pulse) and physilolgical response(thermal sensation, comfort sensation and perceptive sweaty sensation) were measured on condition tha t5 naked healthy male exposed to serveral environmental temperatures,( $20{\pm}1.0^{\circ}C$ ,$28{\pm}1.0^{\circ}C$ and $32{\pm}1.0^{\circ}C$). As the results of this testing, the regional skin temperature was varied for 90min just after expose to those the environment but was generally stabilized for the nest 90min. It was proved the difference of the regional skin temperature at low temperature environmental($20{\pm}1.0^{\circ}C$) was larger than at high temperature environmental($32{\pm}1.0^{\circ}C$) and inder serveral environmental temperature,the degree of the regional skin was not equal. Except in case of the thigh, the front of all regional skin temperature turned out higher than the back of them. According to change of environmental temperature, body temperature and pulse were altered. In the pshycological response, 'thermal sensation-comfort sensation' was felt to 'slightly warm - comfortable' at $28{\pm}1.0^{\circ}C$of the environmental temperature, and 'perceptive sweaty sensation', wneh it was said 'sweat' at only $32{\pm}1.0^{\circ}C$ of it.