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홍희경(Hong Heekyung) 한국문화융합학회 2021 문화와 융합 Vol.43 No.9
코로나 19로 촉발된 비대면 상황이 장기간 지속되면서 온라인 속 가상환경을 통해서라도 현실감과 실재감을 경험하고자 하는 욕구가 증가되는 추세이며, 대안으로 메타버스가 부각되고 있다. 대학 교육도 현재 물리적 환경 중심의 교육 모델을 메타버스의 요소에 적합하게 어떻게 재편 또는 확장하여 적용할 것인지 적극적으로 고민하고 도입해야 할 필요가 있다. 메타버스는 온라인 상태에서 오프라인처럼 현실과 같은 실재감을 제공할 수 있는 가상의공간이다. 또한, 대학은 MZ세대가 주가 되는 기관이므로 MZ세대에게 익숙한 플랫폼을 제공하여 학생들의 참여욕구를 자극하고 교육적 목적을 달성할 필요가 있다. 본 연구에서는 대학의 학습 주체인 MZ세대의 특성과 메타버스의 정의와 종류, 특징 및 메타버스를 가속화 하는 혁신 요인을 살폈다. 그리고 현재 서비스되고 있는 주된 메타버스 플랫폼과 교육적으로 시도된 활용사례를 살폈다. 이를 통해 대학에 대한 소속감 제고 및 형성 수단으로서의 활용, 미래형 인재양성의 장으로서의 활용, 수업의 참여와 성취 향상 도구로서의 활용, 동기유발 도구로서의 활용 방안을 제시했다. 그러나 본 연구는 탐색적 연구에 머무른 한계를 가진다. 추후 본 연구를 기반으로 수업 목적과 대상에 적합한 메타버스 플랫폼을 선정하고실제 수업 공간을 설계하여 효과성을 살펴보는 다양한 형태의 실증적 연구가 필요하다. As the untact situation triggered by Corona 19 continues for a long time, the desire to experience a sense of reality and reality even through an online virtual environment is increasing, and the metaverse is emerging as an alternative. University education needs to actively consider and introduce how to reorganize or expand the current physical environment-centered education model to fit the elements of the metaverse. The metaverse is a virtual space that can provide a sense of reality as in the offline state in the online state. In addition, since universities are an institution dominated by the MZ generation, it is necessary to provide a platform familiar to the MZ generation to stimulate students desire to participate and achieve educational goals. In this study, the characteristics of the MZ generation, the learning subject of universities, the definition, types, and characteristics of the metaverse, and the innovation factors that accelerate the metaverse were investigated. In addition, the main metaverse platforms currently being serviced and use cases attempted educationally were examined. Through this, it was suggested to use it as a means to enhance and form a sense of belonging to the university, to use it as a place to nurture future talents, to use it as a tool to improve participation and achievement in classes, and to use it as a motivational tool. However, this study has limitations as it is an exploratory study. In the future, based on this study, various types of empirical research are needed to select a metaverse platform suitable for the purpose and target of the class and to design an actual class space to examine the effectiveness.
Hong, Suk-Ho,Kim, Kyungmin,Kim, Hongtack,Bang, Eunnam,Choi, Heekyung,Kim, Hyung-Chan,Pitts, R.A. Elsevier 2018 Fusion engineering and design Vol.136 No.2
<P><B>Abstract</B></P> <P>Damage and melting of ITER-like tungsten castellated blocks – made of tungsten top layer, copper inter-layer, copper alloy base (CuCrZr) – exposed to long pulse H-mode plasmas were investigated. Since the blocks were not actively cooled, the temperature of blocks was increased rapidly up to melting point of tungsten during H-mode plasmas resulting in severe damage such as cracks and melting of tungsten layer. It is observed that the copper inter-layer located at 5 mm below the surface of the tungsten was also melted indicating that the temperature of the interface had reached the melting point of copper, at least 1200 °C. Melted tungsten material was moved towards <B>j </B>× <B>B</B> direction (high filed side). The melting event was reproduced by 3D transient modeling using COMSOL with 2 MW/m<SUP>2</SUP> heat load and explains the observation quantitatively well. This indicates that failure of cooling system during a long pulse operation with metal walls, especially melting of copper inter-layer will be critical.</P>
A Guide to Designing a Customer Journey Map for Mobile Services
Heekyung Moon,Sung H. Han,Joohwan Park,Jaemin Chun,Sang W. Hong 대한인간공학회 2014 대한인간공학회 학술대회논문집 Vol.2014 No.11
The aim of this study is to develop a design process for a customer journey map that represent and evaluate customer experience. Many companies have been using a customer journey map to discover problems in existing services and to find business opportunities for innovation. As there is a lack of a clearly defined design process, developed customer journey maps are neither consistent nor compatible with each other. This study defined a basic structure of the customer journey map and then suggested an eleven-step design process, a combination of top-down and bottom-up approach. Three methods for generating new service ideas using the customer journey map were suggested. We illustrated this design process with an application to mobile services built upon ethnographic research with 1016 mobile device users. A total of 25 customer journey maps were developed for representative mobile application services such as a travel, a shopping, a book, and a music. The proposed design process would help service designers to develop customer journey maps systematically and find innovative service ideas.
Personalized TV services based on TV-anytime for personal digital recorder
Lee, HeeKyung,Kim, Jae-Gon,Yang, Seung-Jun,Hong, Jinwoo IEEE 2005 IEEE transactions on consumer electronics Vol.51 No.3
In this paper, we present a design and implementation of a TV-anytime compliant personal digital recorder (PDR) that provides personalized services according to user preferences and various terminal/network conditions. Especially, automatic extraction algorithm of user preference is introduced. This paper mainly details with a metadata engine which performs metadata demultiplexing, metadata decoding, and metadata-based content access and browsing. The implemented PDR employing the metadata engine is successfully tested with a set of personalized service scenarios in an end-to-end broadcasting test-bed.
A wideband internal antenna with shorting strip for mobile handset
Jung, Heekyung,Park, Hoon,Hong, Seokjin,Choi, Jaehoon Wiley Subscription Services, Inc., A Wiley Company 2007 MICROWAVE AND OPTICAL TECHNOLOGY LETTERS Vol.49 No.2
<P>In this article, a novel compact internal wideband planar inverted F-antenna (PIFA) was designed. The proposed antenna consisted of a main patch with strip, rectangular slot, and shorting strip and occupied the total volume of 36 × 18 × 6 mm<SUP>3</SUP>. The dual band characteristic was achieved by changing the length of a main patch. A wide impedance bandwidth property was obtained by optimizing the length of shorting strip. The measured 6 dB return loss bandwidths were 22% at 977 MHz and 52.4% at 2025 MHz, respectively. The maximum gains at 915, 1785, 2045, 2450, and 2630 MHz were −0.48, 4.28, 2.79, 1.05, and 1.22 dBi, respectively. The overall radiation patterns are suitable for mobile communication application. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 424–427, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22148</P>
대학생의 주체성과 주체적 참여의 관계에서 학업 회복력의 매개효과
홍다현(Dahyeon Hong),기희경(Heekyung Kee),김정섭(Jungsub Kim) 중앙대학교 한국교육문제연구소 2021 한국교육문제연구 Vol.39 No.3
이 연구의 목적은 대학생의 주체성이 대학생활 및 학업 활동에서의 주체적 참여에 영향을 미치는 과정에서 학업 회복력의 매개효과를 알아보는 것이다. 이를 위해 부산광역시에 소재한 대학교의 남·여 대학생 314명의 자료를 바탕으로 주요 변인 간의 상관관계 분석과 구조방정식 모형을 검증하였다. 이 연구의 주요 결과는 다음과 같다. 첫째, 주체성, 학업 회복력, 주체적 참여는 유의미한 정적 상관이 나타났다. 둘째, 대학생의 주체성과 주체적 참여의 관계에서 학업 회복력은 부분매개 효과를 가지는 것으로 나타났다. 이는 대학생의 주체적 참여 수준을 높이기 위해서는 주체성과 학업 회복력이 매우 중요한 변인임을 보여준다. 이 연구는 이러한 연구결과를 바탕으로 대학생의 주체적 참여 향상을 위한 주체성과 학업 회복력의 중요성과 시사점을 논의하였다. The purpose of this study was to investigate the mediating effect of academic buoyancy in the relationship between agency and agentic engagement of university students. For this purpose, the data from 314 university students in Busan were analyzed for statistical results using SPSS 25.0 and AMOS 25.0. The main results of this study are as follows. First, there was a significant positive correlation between agency, academic buoyancy, and agentic engagement. Second, academic buoyancy had a partially mediating effect in the relationship between agency and agentic engagement of university students. This shows that agency and academic buoyancy are very important variables to increase the level of active participation of university students. Based on these results, this study discussed the importance and implications of agency and academic buoyancy for improving the agentic engagement of university students.