• 한국재난정보학회 논문집
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• 제12권1호
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• pp.1-9
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• 2016

국부적인 두께감소 문제에 대하여 직관부위를 대상으로 한 건전성 평가는 잘 알려져 있으나 엘보우를 대상으로 한 건전성 평가는 최근에 원자력 분야에서는 많은 연구가 이루어지고 있으나 석유화학 플랜트에서 이용되는 건전성 평가 지침서 중 하나인 API579 코드에는 아직 없는 실정이다. 이에 본 연구에서는 엘보우를 대상으로 엘보우의 외부(extrados)와 내부(intrados)에 두께 감소가 있다고 가정한 후 유한요소해석법을 이용하여 두께감소된 엘부우의 건전성평가 해석을 수행하였다. 본 해석 결과는 석유화학 플랜트에서 이용되는 엘보우의 건전성 평가에 이용될 수 있음을 보여주었다.

• 한국가구학회지
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• 제25권4호
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• pp.288-296
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• 2014

The approach of using the structure of the Joseon Dynasty Zen tradition we design a piece of table for outdoor camping is a necessity in modern culture as continuing to develop this research. Analyzing outdoor and camping equipment according to the time change, we focus on the study table for outdoor camping can apply the structure of the elbow. Outdoor supply is also overlaid with the change, while changing in the picnic and camping camp sensibility that was taking advantage of the individuality of each of the general camp. However, it is a surface camp that Korean culture is not to build up the camp culture that has been fixed camp culture of the world in the only development, following the camp trend of European and American. In an attempt to adhere to the trend of Korea currently camped, camping outdoor products that apply the beauty of Korea with a combination of new modern representation tradition and our culture has designed research. I have designed the camp outdoor table based on the contents mentioned above. For the design of this time, it is now possible to use appropriately in accordance with the outdoor environment conditions that are designed to upright seat sharing table in the market tables for camping and to be divided into the seat and upright.

• 한국운동역학회지
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• 제16권1호
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• pp.151-158
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• 2006

The purpose of this study was to find out the kinematical characteristics of arm's basic position in ballet. In order to achieve the purpose of the study, 3D cinematographic analysis was conducted with a ballerina who might performed the perfect arm's basic position. According to the results of this study, it was appeared that the shoulder kept about 78%-82%, the elbow kept about 62%-96%, the wrist kept 52%-109%, and finger kept 48%-110% with the height. Also, movement was formed with $21^{\circ}-77^{\circ}$ of the upper arm angle, $106^{\circ}-164^{\circ}$ of the elbow, $125^{\circ}-140^{\circ}$ of the wrist, and $83^{\circ}-160^{\circ}$ of the shoulder. The left-right ratio of the total arm angle was 98% in the first, second, and third position, and 100% in the forth position. The angle of arm gradient was remained $-68^{\circ}$ in the first position, $-27^{\circ}$ in the second position, $73^{\circ}$ in the third position, and $-11^{\circ}$ in the forth position. Based on the results mentioned above, balance and symmetry of both arms was an important factor in those four positions. Although it is impossible to maintain the position like robot, it may be a good performance if a certain level of extent was remained With respect to this point of view, it may be a good position if the difference between right and left arm in each joint can be remained within 2%. Angle also was an important factor that if the difference in total angle can be remained within 2% it may be an excellent position, there was difference of right and left based on the joint though. Therefore, practice and instruction to make a perfect symmetry as much as possible were needed Also, it would be a good movement if position and angle of joint within 2% difference of right and left arm can be remained In turn, because ballet is movement with expression of the body, beauty of the body and balance of the movement have to be harmonized for beautiful performance. Therefore, it would be a meaningful future study considering the body condition and movement of ballerina to define the beauty.

• 한국산업보건학회지
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• 제27권2호
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• pp.130-137
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• 2017

Objectives: This study was designed to define the musculoskeletal pain levels among selected hairdressers and the risk factors for these musculoskeletal pain levels. Methods: A survey was conducted from July 1 to August 10, 2011 among 199 hair dressers working in Seoul and Gyeonggi-do Province using a self-administered Nordic Musculoskeletal Questionnaire. The affecting factors for musculoskeletal pain levels were analyzed using multiple logistic regression. Results: The musculoskeletal pain levels by body region were low back(6.19), ankle/foot(6.14), shoulder(5.27), knee(5.27), back(5.23) and wrist/hand(5.18). In stepwise regression, significant actors affecting the level of pain by body region were height on wrist/hand, low back, and knee and age on elbow. Conclusions: Based on these results, in order to prevent musculoskeletal diseases among hair dressers, standing time should be decreased and stretching should be performed regularly to protect the low back and knee.

• 한방안이비인후피부과학회지
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• 제32권2호
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• pp.24-58
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• 2019

Objectives : The purpose of this study is to confirm the Efficacy and Safety of "Functional cosmetics containing Humulus japonicus Extract" on dry skin due to mild atopic dermatitis. Methods : A total of 48 patients who visited Semyung Oriental Medical Center from March 20th, 2018 to July 5th, 2018 were included in the study. In this study, the patients were treated with Functional cosmetics containing Humulus japonicus Extract and positive control group. For 6 weeks of gross examination, instrumental assessment were made before and after the study to evaluate how well the products for treatment group with positive control products for control group in recovering the dry skin barriers by mild atopic dermatitis. Results : 1. In the primary endpoint, Skin Hydration showed a statistically significant increase and Transepidermal Water Loss(TEWL) showed a statistically significant decrease in treatment group between Baseline and 6 weeks. 2. In the secondary endpoint, Skin Hydration showed a statistically significant increase in treatment group between Baseline and 3 weeks, but TEWL showed no statistical significance. 3. In the secondary endpoint, Skin Hydration showed a statistically significant increase in treatment group between 3 weeks and 6 weeks, but TEWL showed no statistical significance. 4. In the secondary endpoint, Change of Skin Hydration and TEWL between treatment and control group showed a statistical significance in 6 weeks. 5. In the secondary endpoint, Change of Skin Hydration of 1cm below the medial aspect of the elbow between treatment and control group showed a statistical significance in 3 weeks. 6. In the secondary endpoint, Change of Skin Hydration between treatment and control group showed a statistical significance in 3 weeks and 6 weeks except Center between the medial aspect of the elbow and the wrist in 3 weeks, and Change of TEWL between treatment and control group showed a statistical significance in 6 weeks. 7. To evaluate the safety of the products for the human body, Adverse events, EASI Score, Itching Symptoms Assessment, vital sign check were conducted; There were no severe adverse events during this study. And both experimental group and control group showed no abnormal level. Therefore, it is suggested that products, if used for certain period, should be safe for the human body. Conclusions : According to the above experiments, it is suggested that "Functional cosmetics containing Humulus japonicus Extract" should be effective for dry skin due to mild atopic dermatitis.