Subjective evaluation of wide-viewing-angle stereoscopic contents in a dome theater

윤하영 한국정보디스플레이학회 2011 Journal of information display Vol.12 No.3

This study was conducted for the purpose of evaluating the impressions gained by the members of the audience who have seen contents in a dome theater, based on their seating positions. Dome Theater Gaia provided the environment where the contents for evaluation were to be presented, and enquête (survey) was used as the investigative method. The survey results showed that the presentation of wide-viewing-angle three-dimensional (3D) contents proved effective in enhancing the 3D effect and the presence in a dome theater. Moreover, the study results confirmed that in relation to the impression evaluation of the contents for different seating positions, the optimal seating position varied according to the presentation method of the 3D and 2D contents.

비투과형 HMD를 이용한 가상환경에서 유저의 가상신체 모델이 현실감에 미치는 영향 연구

윤하영,구지훈 한국지식정보기술학회 2018 한국지식정보기술학회 논문지 Vol.13 No.6

In this study, we investigated the sense of high fear according to height with virtual body model in a virtual environment using non - transmissive head mounted display in relation to the reality of high-rise building's virtual reality contents. For this purpose, the virtual reality contents about watching down from the high-rise building and the user 's virtual body model which is composed of the lower body shape were produced. For the ergonomic evaluation, 18 stimulations were performed according to the six random heights and the presence of the virtual body after the presentation of the reference stimulus about 10m height in the virtual environment. In addition, a variance analysis was performed on the results of each factor, and a sub-test based on the Bonferroni correction was performed. As a result of the analysis, in the result of the height sense, the average view point of the virtual body display condition was evaluated to be higher than the condition of the virtual body notation or object display under all conditions according to the change of the viewpoint of height. This suggests that the user has a strong sense of presence as if he or she is in the virtual reality space. And, as a result of the analysis of the fear of a of heights, a significant difference was found in the main effect of virtual body display (F (1,29) = 10.201, p <0.05). In addition, the significance was confirmed by simple interaction (F (1,29) = 5.444, p <0.05) in the virtual body display and the virtual body display condition. Through this, it is confirmed that the expression of the user 's virtual body improves the reality of the head mounted display contents.

인터넷 쇼핑몰의 패션제품 중독구매성향

윤하영,홍금희 한국의류학회 2006 한국의류학회 학술대회논문집 Vol.2006 No.-

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.

중학생의 학업스트레스가 자살생각에 미치는 영향: 속박감과 또래로부터의 정서적 지지의 조절된 매개효과

윤하영,박주희 가정과삶의질학회 2022 가정과삶의질학회 학술발표대회 자료집 Vol.2022 No.5

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.

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.

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.

감염병 시대에서의 효과적인 안전교육 운영방안 (용인시민안전체험관 내 온라인스튜디오를 중심으로)

윤하영,신동일,김태환 한국재난정보학회 2022 한국재난정보학회 학술대회 Vol.2022 No.10

무인 스터디카페 관리 시스템

윤하영,민희수,신동진,이용수,김정준 한국인터넷방송통신학회 2019 한국인터넷방송통신학회 논문지 Vol.19 No.3

The trend of studying is changing, and it is not a place to study but also a new cultural environment. The study cafe, which is relatively free and comfortable compared to a stuffy library or reading room, is suitable for an unmanned system that can generate greater profits by reducing labor costs. However, the system that can manage this systematically is still insufficient and needs to be supplemented. In this paper, we developed an Android application that integrates the unattended study cafe and provides convenience to users through additional functions. The user and the manager are separated so that the user can use the desired study cafe in the corresponding region through reservation and inquiry of the seat. The manager manages seats and members and allows the outside of the cafeteria to check the current situation. In addition, community and noise measurements and member time visualization capabilities have been added to enhance application utilization. 공부하는 트렌드에 변화가 일어나며 단순히 공부하는 공간이 아닌, 복합 문화 환경으로 거듭나야 새로운 수요층의 욕구를 충족할 수가 있다. 답답한 도서관이나 독서실에 비해 비교적 자유롭고 쾌적함에 주목을 받고 있는 스터디카페는 인건비 절감을 통해 보다 큰 이익을 창출할 수 있는 무인 시스템에 적합하다. 하지만 이를 체계적으로 관리해 줄수 있는 시스템이 아직 미흡하여 보완이 필요하다. 따라서 본 논문에서는 무인 스터디카페를 통합적으로 관리해주고 부가적인 기능을 통해 사용자에게 편의성을 제공하는 안드로이드 애플리케이션을 개발하였다. 사용자와 관리자를 구분하여 사용자는 좌석 예약 및 조회 등을 통하여 해당 지역의 원하는 스터디카페를 이용할 수 있도록 구성하였다. 관리자는좌석 및 회원을 관리하고 스터티카페의 현재 상황을 외부에서도 확인할 수 있도록 하였다. 부가적으로 커뮤니티 및 소음측정과 회원의 이용 시간 시각화 기능 등도 추가하여 애플리케이션의 활용도를 높였다.