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곽지영(Jiyoung Kwak),윤서연(Seoyeon Yun),전정윤(Chungyoon Chun),최희원(Heewon Choi),박준석(J.S. Park),서석원(Seokwon Seo),권춘규(Chunkyu Kwon) 한국자동차공학회 2019 한국자동차공학회 부문종합 학술대회 Vol.2019 No.5
With the recent development of self-driving cars, vehicles are not just a means of transportation but becomes a living space. Thus, it is important to provide a comfortable indoor environment to passengers in the vehicle. To achieve this, HMC Comfort Model ver.1, which predicts the thermal comfort of passengers, was developed in 2017. However, since this model was developed for Korean males in their 2-30s, it is difficult to apply it to females where different physiological and psychological responses are shown. Therefore, in this study, the data to develop comfort model specialized for gender were obtained and analyzed. Experiments were conducted on Korean females in their 2-30s in actual vehicles located in climate chambers with hot and cold conditions. During the experiment, skin temperature was measured and thermal comfort of subjects was evaluated. The results were compared with previous results of Korean males and necessity of specialized comfort model for women was confirmed through differences between two results.
Analysis of Emotional Responses for Students in a Non-Face to Face (NF2F) Learning Environment
Jiyoung Kwahk(곽지영),Yubin Won(원유빈) 대한인간공학회 2021 대한인간공학회 학술대회논문집 Vol.2021 No.11
Objective: The purpose of this study is to find a solution that can improve the emotional responses of the users in non-face-to-face (NF2F) communication environments. The authors examined the positive and negative emotional responses experienced by the users in a NF2F learning environment, based on which solutions that can compensate for the shortcomings of NF2F interactions causing negative emotional responses were derived. Background: Due to the spread of COVID-19, face-to-face contact is discouraged, and we are forced to adopt NF2F methods in most working environments such as schools, companies, music concerts, festivals, art performances, etc. Especially in schools, teachers and students are enduring NF2F classes for almost two years now. Although there are many platforms available for online learning activities, the emotions felt by teachers and students who use them are not fully considered. Method: Two user survey sessions were conducted online to understand the emotional responses of the students in non-face-to-face real-time video lectures. In the first survey, overall emotional response patterns regarding NF2F classes were examined. A total of 225 people participated in the survey. They were asked to answer a series of structured questions to assess the type of emotions experienced during NF2F lectures, designed based on the Plutchik’s Wheel of Emotions. In the second survey, we investigated more detailed emotional responses along with the causes with respect to each step of the user journey. A total of 150 students participated online. They were asked to answer a series of structured questions to assess the type of emotions as well as the causes of the positive or negative responses for each step of user journey of NF2F lectures. Results: The emotions most frequently felt by the users of non-face-to-face lectures include: serenity (87%), boredom (84%), distraction (80%), acceptance (65%), apprehension (65%), and annoyance (60%). Among the steps of the user journey, users experienced negative emotions most frequently in connecting to the classes, waiting rooms, audio-visual settings, attendance check, sharing screens, and asking questions. Conclusion: Solutions to resolve the causes of the negative emotional responses were suggested based on the results. Application: This study is a basic research for vitalizing non-face-to-face industries by developing an Affective Intelligence Model that supports the interactions for remote or virtual working environments, which has recently emerged as an essential requirement for global industrial competitiveness in the post-pandemic era.
초급 학습자를 위한 한국어 이해 교재 개발의 실제 - ‘새 연세한국어 듣기와 읽기 2’를 중심으로
곽지영 ( Kwak Ji Young ),이수민 ( Lee Sumin ),최유경 ( Choi Yookyung ),성미현 ( Sung Mihyun ),이지영 ( Lee Jiyoung ),이혜림 ( Lee Hyerim ) 연세대학교 언어연구교육원 한국어학당 2019 외국어로서의 한국어교육 Vol.52 No.-
The purpose of this study is to examine the process of developing a Korean comprehension skill-based textbook for elementary-level learners - ‘New Yonsei Korean Listening and Reading 2’ as well as its lesson and unit structure1). ‘New Yonsei Korean Listening and Reading 2’ has been developed to be used along with ‘New Yonsei Korean Vocabulary and Grammar 2’ and ‘New Yonsei Korean Speaking and Writing 2’. This paper reviews the principles that ‘New Yonsei Korean Listening and Reading 2’ is based on, the development process, and examples of each section of unit. Each unit of ‘New Yonsei Korean Listening and Reading 2’ consists of the following sections: ‘Title and Lesson Objective’, ‘Let’s Prepare’, ‘Let’s Listen’, ‘Let’s Read’, ‘Let’s Repeat’, and ‘Let’s Summarize’. ‘New Yonsei Korean Listening and Reading 2’ is a topic-based textbook, and is intended to enhance the learners’ comprehension ability and develop the learners’ communicative competence.
입자농도 영향을 고려한 사이클론 최적화 설계에 관한 연구
오세한(SeHan Oh),곽지영(JiYoung Kwak),이열(Yeol Lee) 한국추진공학회 2013 한국추진공학회 학술대회논문집 Vol.2013 No.5
고온 고압조건에 적용할 수 있는 사이클론 성능관계식과 수치해석방법을 이용하여 알루미늄 연소입자를 집진할 수 있는 Lapple 사이클론에 관한 연구가 진행되었다. 자세한 설계 흐름도 및 그 설계결과가 제시되었으며, 예상되는 집진성능이 평가되었다. 연소가스 내에 있는 알루미늄의 입자농도의 영향성이 다양한 운용조건에 대하여 비교되었으며, 입자농도가 커지면 사이클론 내부에서의 압력강하 크기 또한 증가하였으나 그 변화량은 크지 않음이 관찰되었다. A Lapple cyclone is designed to collect alumina particles in high-temperature and high-pressure conditions by utilizing both numerical simulations and theoretical correlation equations. Detailed flow chart for the cyclone design procedure and its results are shown, and the expected performances of the cyclone are also presented. Effects of the dust loading of the alumina particles are observed for various operation conditions, and it is found that the total pressure drop inside the cyclone is slightly increased for higher dust loadings, however, the change is not that strong.
밀레니얼 세대의 멀티 디바이스 미디어 이용에 대한 조사 및 분석
이민규(Mingyu Lee),곽지영(Jiyoung Kwahk),한성호(Sung H. Han),정다운(Dawoon Jeong),박규동(Kyudong Park),김주환(Ju Hwan Kim),오석민(Seokmin Oh),채건호(Gunho Chae) 대한인간공학회 2017 大韓人間工學會誌 Vol.36 No.6
Objective: The aim of this study is to understand the multi-device media usage behaviors of the ’Millennial’ generation, focusing particularly on music, photo, and videos. Background: Millennials are generally defined as those who were born between early 1980’s and early 2000’s, and they are known to be familiar with various digital devices since childhood. Since they constitute more than 30% of the global population, they now became the most important target users for most companies. Therefore, identifying the characteristics of the millennials and reflecting them in product development is now essential to be successful in the market. Although many studies have been conducted to understand the characteristics of the millennials, they focus on the common characteristics of millennials as a whole. Method: In this study, an online survey was conducted with a total 360 millennial users. Participants responded to survey questions including the degree of interest in media and media devices, degree of media usage, types of media devices in use, goals and purposes of media usage, and the pain points of using media in a multidevice environment. Results: The results showed that the millennials were generally interested in new media devices or services and that they were willing to utilize a variety of functions to enrich their media life. Different from our expectations, however, not all of them were so active in investing money to purchase numerous media devices or services. In a multi-device environment, the millennials were consuming media using a variety of wireless devices, such as smartphones, digital camera, tablet PC, and Bluetooth speakers or headphones, but were having difficulty in using them. Conclusion & Application: This study investigated the media usage of the millennial users. The results of this study are expected to help designers to better understand the media-related characteristics of this emerging generation in more precision and to offer devices and services that millennials love.