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윤하영,조민정,황윤숙,고광욱 한국치위생과학회 2017 치위생과학회지 Vol.17 No.5
The purpose of this study was to analyze the relationship between objective oral health status determined by dentists, self-perceived subjectiveoral health status, and oral health related quality of life (OHRQoL) in the elderly. The related factors affecting OHRQoL in the elderly were alsosurveyed. Four hundred and thirty elderly individuals who visited the three public health centers and four dental clinics in Busan were selected byconvenience sampling. Twelve dental hygienists investigated the subjective oral health status and OHRQoL using the 14-item Oral Health ImpactProfile (OHIP-14) and twentyone dentists examined the objective oral health status, including healthy remaining teeth, treated remaining teeth,functional remaining teeth, missing teeth, and non-treated missing teeth. Data were analyzed using SPSS ver. 12.0. OHRQoL was higher whenoral and periodontal status was perceived as healthy, when there was no toothache, no interference in mastication, and when study subjects hadthe ability of food softening. It was also higher when study subjects had ≥20 remaining teeth and <9 missing teeth, and were wearing denture. The related factors affecting OHRQoL of the elderly were the type of medical insurance, toothache, ability of food softening, perception ofperiodontal status, and the number of healthy remaining teeth. There was a significant relationship between the subjective-objective oral healthstatus and OHRQoL in the elderly. A continuous oral health care system aimed at retaining ≥20 healthy remaining teeth is needed to improve oralhealth and OHRQoL for the elderly, especially for the elderly receiving medical aid.
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The Discourse of Non-Regular Employment Policies: Comparative Analysis between South Korea and Japan
윤하영 경북대학교 사회과학연구원 2023 사회과학 담론과 정책 Vol.16 No.1
This article explores how policy discourse and ideas have influenced the policies towards non-regular employment in South Korea and Japan through discursive analysis. Both countries have experienced significant labor market reforms since the 1990s, leading to an increase in non-regular employment. However, there was a difference in how each country set the discourse around non-regular employment resulting in different policy responses. South Korea and Japan went through the periods of policies that emphasized flexible labor during their periods of economic crises. Yet, Japan has emphasized labor market flexibility and expanded the use of non-regular employment, framing it as a means to diversify employment forms. In contrast, Korea has focused more on protecting non-regular employment and reducing social inequality. It has been more cautious in its approach to non-regular employment. But at the same time they couldn’t forgo the ideas of labor market flexibility for its economic growth. There was a slight turn in the policy discourse after the 2008 financial crisis. After 2008, Japan shifted its focus towards providing safety nets and support for non-regular workers, while also aiming to diversify regular employment. Korea also has sought to improve employment stability and reduce discrimination, and yet still promoted pro-business policies emphasizing flexible labor policies. Such different policy discourse have led to different policy responses and views of non-regular employment in Korea and Japan.
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텍스타일 스트레인 센서에 마이크로 니들을 이용한 전도성입자 침투력 향상
윤하영,김원진,김주용 한국감성과학회 2022 감성과학 Vol.25 No.4
Recently, interest in and demand for sensors that recognize physical activity and their products are increasing. In particular, the development of wearable materials that are flexible, stretchable, and able to detect the user's biological signals is drawing attention. In this study, an experiment was conducted to improve the dip-coating efficiency of a single-walled carbon nanotube dispersion solution after fine holes were made in a hydrophobic material with a micro needle. In this study, dip-coating was performed with a material that was not penetrated, and comparative analysis was performed. The electrical conductivity of the sensor was measured when the sensor was stretched using a strain universal testing machine (Dacell Co. Ltd., Seoul, Korea) and a multimeter (Keysight Technologies, Santa Rosa, CA, USA) was used to measure resistance. It was found that the electrical conductivity of a sensor that was subjected to needling was at least 16 times better than that of a sensor that was not. In addition, the gauge factor was excellent, relative to the initial resistance of the sensor, so good performance as a sensor could be confirmed. Here, the dip-coating efficiency of hydrophobic materials, which have superior physical properties to hydrophilic materials but are not suitable due to their high surface tension, can be adopted to more effectively detect body movements and manufacture sensors with excellent durability and usability. 최근 신체활동에 대해 인식하는 센서와 그 제품군에 대한 관심 및 수요가 증가하고 있다. 특히 유연하고 연신이 가능하며 사용자의 생체신호를 감지할 수 있는 웨어러블 소재에 대한 개발이 주목받고 있다. 본 연구에서는 소수성 소재에 Micro Needle을 통해 미세 구멍을 형성한 후 SWCNT 분산용액에 대한 함침 효율을 향상시키는 실험을 수행하였다. 본 연구에서는 구멍을 뚫지 않은 소재를 대조(control) 군으로 함침을 진행, 비교 분석하였다. 센서의 전기전도도를 평가하기 위해Strain UTM (Universal Testing Machine, UTM, Dacell)과 저항을 측정하는 멀티미터(Keysight)를 이용해 센서를 인장했을 때의 센서의 전기전도도를 측정하였다. 또한 센서의 내구성을 평가하기 위해 시료별로 500회 인장을 진행한 후에 센서의 전기전도도를 평가하였다. 그 결과 Needling을 한 센서의 전기전도성이 Needling을 하지 않은 센서에 비해 최소 16배이상 뛰어남을 알 수 있었다. 또한 센서의 초기 저항에 비해 게이지 팩터도 우수해 센서로서 좋은 성능을 확인할 수 있었다. 이를 통해 친수성 소재에 비해 물성이 뛰어나지만, 높은 표면장력 때문에 함침 효율이 좋지 않았던 소수성 소재의함침 효율을 높여 신체의 움직임을 더 효과적으로 감지하고 내구성과 활용 가능성이 뛰어난 센서를 제작했다.
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Child Emotion Review Application Design with Design Thinking Empathizing Process
윤하영,이현경,김지현,나마,이지선,섀넌 P. 위자자,김현경 한국디자인트렌드학회 2022 한국디자인포럼 Vol.27 No.3
Background In recent years, it has been found that there has been an increase in mental illnesses in children and infants in Korea. According to existing findings and our observation, detailed feedback on children's emotional expression is essential for their growth and emotional health. Thus, to contribute in combatting this ongoing problem, the purpose of this paper is to design an application that can help review and monitor the emotions of 5-6-year-old children in order to improve their emotion regulation. By focusing on children's emotion regulation theory and design thinking methods, we designed a mobile application prototype with features intended to help children express their feelings and provide feedback for them. Through children’s direct participation and feedbacks during user testing, we were able to observe and analyze how the features and functions affect children's emotional expression. Methods This research is based on a qualitative study using design thinking methods where the data were collected through interviews and usability tests were conducted to measure the performance of the application and user satisfaction. The interviews were conducted to understand the behavioral characteristics of children aged 5 to 6. The findings were then used to determine and design of the elements and features of the application. After developing a prototype, usability tests were conducted with 7 children from South Korea, China, and Indonesia. Through interviews and surveys, insight and feedback to optimize the application were discovered. Result It has been found through our observation that overall, children between the age of 5 and 6 were interested in using the emotion review application. The presented emojis, designed as a potato character, played an important role in attracting children's interest. Moreover, this application simply reviewed the children's emotions and helped the parents to have a better understanding of the children and to improve parent-child communication. Thus, we can conclude that this application is able to help express children's emotions, and through utilizing the application, a positive relationship between children and parents can be formed. Conclusion The process of leading 5-6 years children to openly express their emotions and share their emotions was difficult. However, we found that if the children are visually interested in the mobile devices that they are familiar with or if there is active assistance from their parents, the process can proceed smoothly. Therefore, by utilizing an interesting form of emotion monitoring system for children combined with parents’ participation and support, children‘s emotion development can be strengthened and therefore can help with emotion regulation and emotional health.
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가상공간에서 오브젝트의 밀도가 이동시뮬레이션에 미치는 영향
윤하영,구지훈 한국게임학회 2017 한국게임학회 논문지 Vol.17 No.4
본 연구에서는 HMD(Head Mounted Display)를 가지고 Walk-through의 이동시뮬레이션에 대한 평가를 실시하였다. 구체적으로는 VR공간 주변에 배치된 오브젝트 밀집정도(밀도)의 변화가 심리적 이동거리, 이동속도, 이동시간에 어떠한 영향을 미치는지 알아보았다. 연구결과 첫째, 실험 조건 (저밀도, 중밀도, 고밀도)에 있어 조건간의 차이는 모두 유의미하였다. 둘째, 주변 오브젝트의 밀도가 높아질수록 이동시간, 이동속도, 이동거리가 기본조건과 비교하여 평균점이 높게 나타났다. 셋째, 주변의 오브젝트가 VR공간의 이동시뮬레이션에 있어 시간, 속도, 거리의 감각을 향상 시키는 것을 확인하였다. In this study, motion simulation of Walk-through was evaluated with HMD(Head Mounted Display). More Specifically, we examined the changes of the degree of object density placed around virtual space on psychological moving distance, moving speed, and moving time. The results were as follows. First, the difference between the experimental conditions(low density, Medium density, High density) was significant. Second, as the density of the surrounding objects increased, the average point of moving time, moving speed, and moving distance rose compared to the basic conditions. Third, it was found that the surrounding objects improved the sense of time, speed and distance in motion simulation in virtual space.
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