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3D 프린팅을 활용한 미세먼지 신호기능의 가방 디자인 -직물구조적 형태의 연결디자인 적용을 중심으로-
송하영(Song, Ha Young),민지혜(Min, Ji Hye) 한국디자인문화학회 2021 한국디자인문화학회지 Vol.27 No.4
최근 3D 프린팅 기술은 시제품 제작 도구를 넘어 차세대 생산 기술로 주목받기 시작했고, 현재는 스마트폰의 최첨단 IT 기술이 3D 프린팅에 접목되며 제조업계에 일대 혁명을 주도하고 있다. 2020년부터 예상치 못한 ‘코로나 19 팬데믹’이라는 글로벌 산업계의 위기상황 속에서, 소비자 중심으로 다양한 제품의 3D프린팅 기술을 개발되어 코로나19 팬데믹을 극복하는데 많은 기여를 하고 있다. 이에 본 연구에서는 일상생활에서 남녀 모두 필수적인 패션 아이템으로서 평상시 웨어러블(wearable)의 빈도가 높다고 판단되는 패션잡화 가방을 선정하여 미세먼지 신호 감지 기능의 3D 프린팅 가방 디자인은 개발하고자 하였다. 3D 프린팅을 활용한 유연성과 연결성이 있는 직물구조적인 디자인을 적용하여, 미세먼지 환경 속에서 소비자들이 건강에 좋지 않은 주변 환경의 미세먼지를 감지하여 경고신호를 알림으로써 오염 환경으로부터 사전예방할 수 있는 미세먼지 신호 감지 기능의 3D 프린팅 가방 디자인을 프로토타입(prototype)으로 연구 제안하였다. 본 연구는 폴리아미드(polyamide) 12 소재를 적용하여 SLS(Selective Laser Sintering) 방식의 Muti Jet Fusion 방법으로 출력하였고, 유연성과 연결성이 있는 직물구조적인 3D 프린팅 디자인으로서 굵기 0.8~1.0mm, 가로 175mm, 높이 200mm, 폭 70mm 가방 사이즈로서 아래 가방의 바닥에서부터 30mm 높이 사이즈에 미세먼지 센싱 모듈을 장착할 수 있도록 설계하였다. 미세먼지 신호기능의 3D 프린팅 프로토타입 가방은 아두이노 프로미니 호환의 미세먼지센서 기능으로서, 주변 환경의 미세먼지 농도가 위험한계 신호인 0.5mg/㎥ 이상으로 센서가 감지되는 구간에서 LED 불빛이 발현되었다. 본 연구에서는 스마트 모바일 앱을 구현하여 미세먼지 센서 기능을 확인 및 제어할 수 있는 기능은 적용되지 않았으며, 이는 향후 지속연구에서 소비자 사용성을 기반으로 한 디자인을 차별화하여 진행할 필요가 있다. Recently, 3D printing technology has begun to getting attention as a next-generation production technology beyond prototype making tools, now the high-tech IT technology connected to smartphone is being applied to 3D printing and is leading the major revolution in the manufacturing industry. In the unexpected crisis of the global industry called “COVID-19 Pandemic” since 2020, 3D printing technology of various products has been developed for consumers, contributing a lot to overcoming this COVID-19 Pandemic. Therefore, this study attempted to develop a 3D printing bag design with a fine dust signal detection function by selecting a fashion accessory bag that is considered to have a high frequency of wearable as an essential fashion item for both men and women in everyday life. By applying a fabric structure design with flexibility and connectivity using 3D printing, a 3D printing bag design with a fine dust signal detection function that can prevent consumers from contamination by detecting fine dust in an unhealthy surrounding environment was proposed as a prototype. This study applied a polyamide 12 material and output 3D printing by the Muti Jet Fusion method of SLS(Selective Laser Sintering). As a fabric structure 3D printing design with flexibility and connection, it is designed to mount a fine dust sensing module in a height of 30 mm from the bottom of the bag below as a bag size with a thickness of 0.8 to 1.0 mm, a width of 175 mm, a height of 200 mm, and a width of 70 mm. The 3D printed prototype bag, which functions as a fine dust signal, is an Arduino promini-compatible fine dust sensor function, and LED lights are displayed in the section where the sensor is detected to be 0.5 mg/㎥, a dangerous signal in the surrounding environment. In this study, the function of detecting and controlling fine dust sensors by implementing a smart mobile app was not applied, and it is necessary to differentiate designs based on consumer usability in the following continuous studies.
식생활 및 건강관련 지상파 TV 유아 프로그램 모니터링
문현경(Hyun-Kyung Moon),민지혜(Ji-Hye Min),김정남(Jeong-Nam Kim) 한국보건교육건강증진학회 2010 보건교육건강증진학회지 Vol.27 No.3
Objectives: Television is the most influencing mass media. It has taken an important part in our daily life as the information source. Transmitted informations are the important sources for building one's conscience, value and behavior for all age groups from young children to aged. Methods: In this paper, all land-based TV programs for young children has been monitored by quantity and quality from July 1st 2008 'till December 31st. General programs for young children have been monitored by its theme, type, contents delivery method, proportion of diet and health information in the program, and appropriateness. For the analysis, SPSS was used. Results: Young children's program 2,771 programs and 47,169 minutes during the period were monitored. From programs for young children about ‘general’ and ‘cooking’, there were 48programs(30.6%) that has contents about dishes, 47programs(29.9%) about food and nutrition, 34programs(21.7%) about life habits. From the programs, diet and health has been delivered by ‘practical exercise(38.9%)’, by ‘cartoon & puppet show(31.2%)’, followed by ‘explanation from experts(15.3%)’, ‘song & movement(8.9%)’, and ‘simple introduction(4.4%)’. From programs for young children about ‘general’ and ‘cooking’, there were 157programs that has contents about ideas and delivery method being considered, ‘appropriate(45.7%)’ for giving positive and ‘inappropriate(54.3%)’ for its negative influence to young children, the need of improvement was suggested. Conclusion: Considering the importance of infancy in one's lifetime, not only specific field but each program for young children itself should be monitored by experts of each field. A plan on how to deliver accurate content effectively to young children should be searched in various ways.
정상법랑질과 인공우식법랑질에 불소바니쉬 도포 후 항우식 효과 비교
정문진 ( Moon Jin Jeong ),임지향 ( Ji Hyang Lim ),민지혜 ( Ji Hye Min ),정순정 ( Soon Jeong Jeong ),손정희 ( Jung Hui Son ),임도선 ( Do Seon Lim ) 한국치위생과학회 2013 치위생과학회지 Vol.13 No.4
In order to examine the anticariogenic effect after fluoride varnish was applied to sound enamel and artificial caries enamel, anterior teeth of healthy cattle were used and divided into four groups such as group 1 (sound enamel), group 2 (application of fluoride varnish to sound enamel), group 3 (artificial caries enamel) and group 4 (application of fluoride varnish to artificial caries enamel). Remineralization on the surface of enamel and changes of crystalline structure after demineralization were observed by using a field emission scanning electron microscope (FE-SEM). Quantitative analysis of Ca and P was measured by using the energy dispersive X-ray spectrophotometer (EDS). The following conclusions were obtained: 1)Surface pattern of enamel was the roughest in group 3 due to the defects caused by porosity and microcracks. Group 4, group 1 and group 2 were followed in order; 2) It was found that pattern of crystalline structures in a group of application of fluoride varnish and a group of no application showed bigger change in artificial caries enamel than that in sound enamel. In other words, groups 4 and 1 showed a similar pattern; 3) The contents of Ca and P were higher in groups of application of fluoride varnish (group 2 and group 4) than in groups of no application of fluoride varnish (group 1 and group 3). Taken results of this study together, in the case of application of fluoride varnish, crystalline structure was changed by remineralization even in the sound enamel. In particular, porous structures showed a smooth and uniform pattern due to the recalcification in the artificial caries enamel. In addition, according to results of EDS analysis, the contents of Ca and P were increased and it had great anticariogenic effects which inhibit decalcification of sound enamel and artificial caries enamel.
CT 영상 내 딥러닝을 이용한 병변 상태의 췌장 분할 및 평가
오수빈(Subin Oh),양이화(Ehwa Yang),민지혜(Ji Hye Min),김재훈(Jae-Hun Kim) 한국통신학회 2022 한국통신학회 학술대회논문집 Vol.2022 No.2
본 연구의 목적은 CT 영상 내 병변 상태에 있는 췌장을 딥러닝을 이용하여 분할하고 평가하는 것이다. 병변 상태에 있는 췌장은 췌장염 또는 췌장암으로 인해 췌장관이 확장되었고, 두부(췌장의 머리부분)가 팽대되는 특징을 보인다. 따라서 정상 상태에서의 췌장보다는 작고 다양한 형태를 가졌기 때문에 분할하는데 매우 어려운 점이 있다. 본 연구에서는 이러한 병변 상태의 췌장을 딥러닝 모델(ResU-Net)을 사용하여 분할하였다. 공용 데이터셋인 MSD(Medical Segmentation Decathlon) 데이터셋을 이용하여 딥러닝 모델을 학습 시킨 후 본 연구기관의 내부 데이터셋을 사용하여 학습시킨 딥러닝 분할 기술의 성능을 평가하였다. 측정 척도는 다이스 유사도 계수(Dice Similarity Coefficient)를 사용하여 실험 결과를 평가하고 분석하였다.