와이어 직조에 기반한 극저밀도 재료의 제조법

최정명,강기주,Choi, Jung Myung,Gang, Liu,Kang, Kiju 대한기계학회 2017 大韓機械學會論文集A Vol.24 No.2

최근 Shellular라는 새로운 극저밀도 재료가 소개되었다. Shellular는 주기적 구조를 가지면서도 한장의 부드러운 곡면의 쉘로 구성되어 있다. 최초의 Shellular는 리쏘그래피를 이용하여 제조되며 3주기최소곡면의 일종인 P-곡면과 유사한 형태를 갖는다. 본 연구에서는 와이어 직조에 기반하여 D-곡면과 유사한 Shellular를 제작하는 새로운 방법을 제시한다. 실험과 유한요소해석을 통하여 압축하중 하의 재료물성을 평가하고 종래의 극저밀도 재료와 비교하였다. A new ultralow density material (ULDM) named Shellular was recently introduced. Shellular has a periodic cellular structure with smooth-curved shells. The template for the first Shellular was fabricated using lithography and its shape was similar to the P-surface, a type of triply periodic minimal surface (TPMS). In this paper, a new fabrication method of Shellular with D-surface, named W-Shellular, is described. W-Shellular is fabricated based on weaving of polymer wires. The compressive properties are evaluated by experiments and analysis in comparison with the previous ULDMs.

여대생들의 헤어스타일에 관한 연구

최정명(Choi Jung-Myung) 한국인체미용예술학회 2004 한국인체미용예술학회지 Vol.5 No.1

  This study is an analysis of hair style preference of female college students. We hope that our research will provide the beauty industry with helpful and new information. In order to do the study, we interviewed and surveyed female college students in the Chung cheong area.<BR>  The results of the study are the following.<BR>  In the analysis of hair style preference of female college students, straight hair was the most popular with 51.4% and most preferred straight or wavy hair. Most of the subjects styled their hair at home (61.2%) and most used the hair drier (43.0%) when styling their hair. Most of the subjects went to the salon for hair cuts (40.6%) and most preferred a feminine hair style (33.6%). 72.3% of the subjects replied that they changed their hair style in order to change their mood, 68.5% decided on their own hair style and 72.3% chose a hair style after debating whether it would suit them. The frequency of hair style change showed to be often with 63.8% and the number of style changes in one year was low with 1-2 times.<BR>  Most (83.7%) of the surveyed had experience with dyeing their hair, and 65.9% of them dyed their hair to change their image. Of the subjects that have never dyed their hair, 29.4% did not do so because they were satisfied with their natural hair color.<BR>  Most of the subjects preferred long hair(69.8%) and layered style(50.0%), and they preferred those styles because their felt the style either suited them best or because it was the style they liked.

대학생이 지각한 부모의 긍정적양육태도가 회복탄력성과 학업적소진에 미치는 영향

최정명(Jung-Myung Choi) 한국의료정보교육협회 2022 보건의료생명과학논문지 Vol.10 No.2

본 연구의 목적은 대학생이 지각한 부모의 긍정적양육태도가 회복탄력성과 학업적소진에 미치는 영향을 알아보는데 있다. 연구대상은 충청도 소재 대학교에 재학중인 대학생으로, 총 201명을 최종 분석하였다. 자료분석방법은 SPSS 21.0을 사용하여 통계 처리를 하였고 위계적 회귀분석으로 분석하였다. 연구결과는 다음과 같다. 긍정적 부모양육태도가 회복탄력성에 유의미한 영향을 미치는 것으로 나타났으며, 긍정적 양육태도가 높아질수록 회복탄력성이 증가하는 것을 알 수 있다. 긍정적 부모양육태도가 학업적소진에 유의미한 영향을 미치는 것으로 나타났으며, 긍정적 양육태도가 높아질수록 학업적소진은 감소하는 것을 알 수 있다. 대학생의 회복탄력성과 학업적소진의 상관관계를 살펴보면, 회복탄력성 전체와 학업적소진 전체는 유의미한 부(-)적 상관관계를 갖는 것으로 나타났다. The purpose of this study is to investigate the effect of parents' positive parenting attitudes perceived by college students on resilience and academic burnout. The subject of the study was college students enrolled in colleges in Chungcheong-do, and a total of 201 people were finally analyzed. The data analysis method was statistically processed using SPSS 21.0 and analyzed by hierarchical regression analysis. The results of the study are as follows. It was found that the positive parenting attitude had a significant effect on the resilience, and it can be seen that the resilience increases as the positive parenting attitude increases. It was found that positive parenting attitude had a significant effect on academic burnout, and as the positive parenting attitude increases, academic burnout decreases. Looking at the correlation between resilience and academic burnout of college students, it was found that overall resilience and overall academic burnout had a significant negative (-) correlation.

두피와 모발관리에 관한 연구 - 아유르베다를 중심으로

최정명(Choi Jung-Myung),박신정(Park Shin-Jung) 한국인체미용예술학회 2007 한국인체미용예술학회지 Vol.8 No.3

  Ayurveda is the oldest book in the world which has a scientific system verified experimentally in the field of the prevention and cure of a disease. The ways of cure in Ayurveda have been used to cure diseases of a lot of people by many doctors in India for a long time.<BR>  Especially, according to Ayurveda, the message to care the head and hair is done after oil is applied. The message of the head like this, which is a branch of Ayurveda, is an effective way of cure which promotes the growth of hair as well as removes a pain.<BR>  Therefore, the aim of the study of the treatment of the head and hair in Ayurveda is to offer the more systematic datum of it to the beauty art society in Korea.<BR>  The treatments of the head and hair have practiced as follows in Ayurveda.<BR>  First, Shirobhyanga, which is the massage that are done after oil is applied to the head, is the treatment which puts a gloss on the hair and prevents it from losing or graying by absorption of oil into the skin through the root of a hair.<BR>  Second, there is one of treatments called as Shirodahra. Shirodahra, which pours oil on the forehead and the head, is useful to relieve a headache, insomnia, stress and a mental overwork, and then makes our mind and soul be healthy.<BR>  Finally, Sirovasti is the treatment which gets patient"s head to cap, pours warm oil into it. It is the treatment to use warm oil on the head and skin. This treatment is the effective method for the headache and the disease of otorhinolaryngology.

헤어디자이너들 모발에서의 미네랄 및 중금속 함량에 관한 연구

최정명(Jung-Myung Choi),정임전(Eim-Jen Joun) 한국인체미용예술학회 2011 한국인체미용예술학회지 Vol.12 No.4

This study has attempted to investigate and analyze mineral contents (ex: nutrient, toxic element, etc.) in hairdressers’ hair. In nutrients, statistically significant difference was observed in terms of Mg and Se contents <p<.01>. In terms of Mg content, the experimental group was greater than the control group. Se content, on the contrary, was lower than the control group. In toxic elements, ‘U’ content was slightly high in the experimental group. However, As, Be, Hg, Cd, Pb and Al contents were relatively high in the control group. Even so, no statistical significance was detected (p>.05). Because the contents are within normal limits, there is no heavy metal poisoning. In other elements, statistical significance was observed in Sr content (p<.01). The experimental group showed greater Sr content than the control group. In terms of Ba, Bi, Li, Ni, Sn and Ti contents as well, the test group was slightly greater than the control group. Even though the control group was relatively higher than the experimental group in terms of Rb, V and Zr contents, no statistical significance was observed.

高句麗 古墳壁畵의 여성 頭髮에 나타난 美的 표출 양상과 사회ㆍ종교적 通念의 相關關係

최정명(Choi Jung-Myung) 한국인체미용예술학회 2005 한국인체미용예술학회지 Vol.6 No.1

  The following points can be concluded from the hair-style of women described in the mural paintings in old tombs of Goguryeo. First, there is an obvious distinction in the hair style among the regions. The hair style of women described in the mural paintings in old tombs of Goguryeo shows difference as the region came to be divided into Pyeongyang and Gipan. In the meantime, the region of Gipan is adjacent to China and has strong culture of horse-riding nomads.<BR>  Second, the hair style varies depending on the time. On one hand, there were relatively less raised hair styles among women as the early Goguryeo was still unstable and did not have full power to exert control over the territory or centralize the ruling. On the other hand, it was proved that the mural paintings in the mid time of Goguryeo kingdom had many descriptions of raised hairs. By contrast, the region of Gipan was relatively less influenced by the different trends of times, compared to that region of Pyeongyang. This difference is assumed to stem from the fact that people of Goguryeo could accept the culture of China as they were open-minded while keeping the their farm culture, and the region of Gipan had their nomadic culture rarely affected by the change of time because of their distinct regional and geographical characters.<BR>  Third, the religious mentality seemed to have affected the hair style. The hair style might be a natural expression of their religious mentality. In consideration of that, it can be pointed out that the difference in the hair style that varies depending on the social status and position, is not necessarily an ideological instrument for the discrimination, but rather was a religious representation of that time.

아유르베다 오일의 항균성에 관한 연구

최정명(Choi, Jung-Myung) 한국산학기술학회 2010 한국산학기술학회논문지 Vol.11 No.3

본 연구는 아유르베다의 모발과 두피 프로그램을 적용하고 그 효과를 분석하고자 한다. 아유르베딕 (Ayurvedic) 처치는 자연치유력에 의해 면역력을 강화시킨다. 아유르베딕 베이스 오일과 에센셜 오일을 모발과 두피 에 사용했을 때, 두피에 상주하는 균에 대한 항균효과를 알아보기 위해 MIC test 와 Halo test를 통해 측정하였다. 그 결과는 다음과 같다. 9종류의 베이스 오일과 18종류의 에센셜 오일을 이용하여 Bacillus subtilis, Propionibacterium acnes균에 대한 베이스 오일과 에센셜 오일의 항균효과를 MIC test를 통해 조사하였다. 실험 결과, 베이스 오일에서 는 모두 균에 대한 항균효과가 없는 것으로 나타났으며, 에센셜 오일은 Chamomile, Clary sage, Jasmine, Neroli, Rose오일에서 두 균에 대해 모두 5% 이하에서 항균효과가 없는 것으로 나타났다. 두 균주에 대해 Thyme, Geranium, Lavender, Tea tree가 모두 효과가 높은 것으로 조사되었다. Geranium, Lavender, Thyme 에센셜 오일과 Sesame and Coconut 베이스 오일을 이용하여 7가지 공시균주에 대한 Halo test결과 베이스 오일에서는 항균효과가 없는 것으로 나타났다. 에센셜 오일은 7가지 공시균주에 대해 모두 항 균성이 있는 것으로 조사되었다. Thyme은 MIC test 와 Halo test 결과 항균력이 가장 높은 것으로 나타났다. This thesis tried applying Ayurvedic hair and scalp care program and analyzing its effect. Ayurvedic treatment strengthens our immunity through natural healing power. I measured with MIC test and Halo test in order to examine the antibacterial efficacy against colonies which reside in head, when Ayurvedic base oils and essential oils were used on hair and scalp. Finally, I reached the results as follows. I examined the antibacterial efficacy of base oils and essential oils against Bacillus subtilis and Propionibacterium acnes, based on the MIC test with 9 kinds of base oil and 18 kinds of essential oil. By way of experiment, base oils did not show the antibacterial efficacy from all colonies, and in case of essential oils, such as Chamomile, Clary sage, Jasmine, Neroli and Rose oil, the antibacterial efficacy against two colonies did not appear by the measure of below 5%. It turned out that Thyme, Geranium, Lavender and Tea tree had an high effect on two colonies. According to the Halo test which experimented on 7 kinds of bacteria with the essential oils like Geranium, Lavender and Thyme and with the base oils like Sesame and Coconut, it went to prove that base oils was inefficient on antibiosis. It was examined that all of essential oils had the effect on antibiosis from 7 kinds of bacteria. Thyme showed the best efficacy of antibiosis in the MIC and the Halo test.

연구논문 : 헤어스타일과 사상체질의 상관관계

최정명 ( Jung Myung Choi ),김주덕 ( Ju Duk Kim ) 한국미용학회 2004 한국미용학회지 Vol.10 No.1

연구논문 : 일부 여대생의 패션가발 사용 경험에 따른 헤어인식과 패션가발 이용태도

최정명 ( Jung Myung Choi ),이명주 ( Myoung Joo Lee ) 한국미용학회 2015 한국미용학회지 Vol.21 No.1

These days, Many people are concerned about hair loss, damage of scalps and hair due to environmental changes. To solve this problem and substitute for damaged hair, the demand for wig is increasing constantly. This research on female college students experience of using fashion wig aims to clarify the distinct between hair style and fashion wig. Furthermore, we would like to look into the using attitude of fashion wig through the objects of research. This survey targeted female college students who are sensitive to fashion in Chungcheongnam-do Province. Total 407 of survey were completed and analyzed by SPSS 20.0 program. As a result, the group composed of inexperienced users of fashion wig shows higher average than experienced user group in terms of awareness of hair style and fashion. It is significant difference. We expect that this research will be as objective data and a good marketing strategy, furthermore contributed to beauty industry.

아유르베딕 시로아비앙가가 성인여성의 스트레스 완화에 미치는 영향

최정명(Choi, Jung-Myung),최윤정(Choi, Yoon-Jung) 한국산학기술학회 2008 한국산학기술학회논문지 Vol.9 No.6

시로아비앙가는 인도의 고대의 의학서이면서 건강관리의 지침서언 아유르베다의 한 사술법이다. 본 연구는 시로아비앙가가 스트레스 완화에 미치는 효과를 20대 여성을 대상으로 살펴보았다. 이 실험은 뇌파측정을 통해 알아보았는데, 시로아비앙가 마사지가 좌뇌의 텔타파와 우뇌의 텔타파, 세타파를 떨어뜨리고, 우뇌의 알파파와 SMR파, 로우베타파는 증가시키는 것으로 나타났다. 수면 시에 나타나는 델타파와 세타파가 깨어있을 때 높게 나타난 것은 대상자가 스트레스와 긴장상태에 있음을 의미하고, 시로아비앙가 마사지 이후에 델타파와 세타파가 감소하는 결과는 긴 장상태가 완화됨을 나타낸다. 뇌가 활동하고 있을 때 나오는 알파파는 심선이 이완되어 편안할 때 가장 많이 나오는 뇌파이다. 따라서 알파파가 시로아비앙가 마사지 후 증가하는 점은 시로아비앙가 마사지가 스트레스 완화에 영향을 미침을 알 수 있다. Shiro-abhyanga is one of treatments of Ayurveda, which is the ancient system of health care and medicine in India. In this essay, I examined the effect of Shiro-abhyanga for relaxing stress of women in twentieth by the means of the brain wave test. The brain wave test showed that Shiro-abhyanga reduced Delta and Theta waves of the left brain but increased a , SMR, Low-p waves of the right brain. Delta and Theta waves are usually found in sleeping time. Their high measurement in awakening instructs the stress and depressing situations of objects. However the treatment of Shiro-abhyanga made the decrease of Delta and Theta waves and the increase of Alpha wave in working time. Alpha wave appears while objects are comfortable and peaceful from the relaxation of body and mind. Therefore the growth of Alpha wave says that the treatment of Shiro-abhyanga has an effect on mitigation of stress.