• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2003년도 하계종합학술대회 논문집 Ⅲ
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• pp.1303-1306
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• 2003

In this paper, In this paper, we modeled a virtual life(VL) that react to the user's action according to its own behavioral characteristics and grows itself. We established some conditions with which such a VL is designed. Genetic Algorithm is used for the growth process that changes the VL's properties. In this process, the parameter values of the VL's properties are encoded as one chromosome, and the GA operations change this chromosome. The VL's reaction to the user's action is determined by these properties as well as the general expectation of each reaction. These properties are evaluated through 5 fitness measures so as to deal with multi-objective criteria. Here, we present the simulation of the growth process, and show some experimental results.

• 한국실내디자인학회논문집
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• 제20권6호
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• pp.350-358
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• 2011

In contemporary architecture, Environment is not just a non-objective space. It is an experimental space where physical space and the principal result of interaction and order have been granted in symbolic, introverted space. Therefore, Yokohama International Port Terminal characteristics that appear in the architectural space, the nature of human desires and reveal the value of user-centered criteria to classify the type of response characteristics of the affordance are as follows; First, the experience response in the affordance reaction is when users reaction is multiple in theenvironment. Second, the evolution of organic reactions in a public space system is that it shows the spatial characteristics of the functional relationships. Third, the organic of space that can be seen through cultural practice in the inside and outside of the space could be explained as a perceptual response. It can be an opportunity to analyzed and develop in a various forms of space in environmental design if we understands the spatial characteristics of FOA's Yokohama International Port Terminal and applied end user spatial reaction analysis that shows an affordance relationship study.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2005년도 춘계학술발표회
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• pp.1305-1306
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• 2005

• 대한인간공학회지
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• 제14권1호
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• pp.105-113
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• 1995

The objective of the study is to investigate the influence of aesthetic attributes on user interface design. Theories of aesthetics are first studied from which aesthetic attributes are defined as information sources. Representation of a product is viewed as a combination of aesthetic attributes, based on a hypothesis that each attribute has a certain influence on the performance in terms of user interface. An experiment was conducted to support the hypothesis. Various combinations of aesthetic attributes of a microwave oven were generated from the orthogonal array of a conjoint analysis. Subjects perfomed on a computer two types of tasks, each of which simulated a combination of attributes. Reaction time was evaluated as a performance measure for the conjoint analysis to find out how much influence each attribute has on the performance. A computer program, UISA(User interface Simulation system of Aesthetic attributes0, was developed and used for simulation. Findings on the influences of aesthetic attributes were summarized.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2010년 춘계학술대회논문집
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• pp.228-232
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• 2010

In this paper, various operating parameters of stream reforming process from methane in preconverter for MCFC is studied by numerical method. Commercial code is used to simulated the porous catalyst with user subroutine to model three dominant chemical reactions which are Stream Reforming(SR), Water-Gas Shift(WGS), and Direct Stram Reforming(DSR). The hydrogen production is tested with different wall temperature, Gas Hourly Space Velocity(GHSV), and different reactor shapes.

• 한국HCI학회논문지
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• 제14권2호
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• pp.13-20
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• 2019

산업안전을 위한 가상훈련시스템들 중 마중형 햅틱 제시 시스템에서는 가상 및 실제 물체 사이의 자연스러운 상호 작용을 위해 시각-촉각 일치가 필요하며 이를 위해 캘리브레이션이 수행된다. 본 논문에서는 어느 정도의 시각-촉각 일치를 구현한 몰입형 VR 햅틱 시스템의 사용자 평가를 수행하였다. 평가의 목표는 실제 및 가상환경에서 수행하는 일정한 과업들에 대해 두 환경에 대한 사용자 성능 (반응시간 및 거리 정확도)이 크게 다르지 않다는 것을 보이는 것이다. 사용자 평가 결과는 반응 시간에서 통계적으로 유의한 차이가 보이지만 절대 차이는 1초 미만이며 거리 정확도는 가상 환경과 실제 환경 간에 차이가 없는 것을 보여준다. 따라서 개발된 햅틱가상훈련시스템은 값비싼 실제 환경을 대신하여 저렴하게 산업안전 훈련을 할 수 있다고 사료된다.

• 한국정보전자통신기술학회논문지
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• 제14권3호
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• pp.215-222
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• 2021

인간과 컴퓨터의 상호 작용 (Human Computer Interface) 기술의 중요성이 더욱 커지고 있으며 HCI에 대한 연구가 진행됨에 따라 사용자의 직접적인 입력에 의한 컴퓨터 반응이 아닌 감정 추론 혹은 사용자 의도에 따른 컴퓨터 반응에 대한 연구가 증가되고 있다. 스트레스는 현대 인간 문명사회에서의 피할 수 없는 결과이며 복잡한 현상을 나타내며 통제 유무에 따라 인간의 활동능력은 심각한 변화를 받을 수 있다. 본 논문에서는 인간과 컴퓨터의 상호 작용의 일환으로 스트레스를 통해 증가된 심박변이도 (HRV)와 가속도 맥파(APG)를 측정한 후 스트레스를 완화시키기 위한 방안으로 음악을 이용한 지능형 감성 추천시스템을 제안하고자 한다. 사용자의 생체정보 즉, 스트레스 지수를 획득 및 인식하여 신뢰성 있는 데이터를 추출하고자 차분진화 알고리즘을 사용하였으며 이렇게 획득된 스트레스 지수를 단계별에 따라 시멘틱 웹 (Semantic Web)을 통해 감성추론을 하였다. 또한 스트레스 지수와 감성의 변화에 매칭 되는 음악 리스트를 검색 및 추천함으로써 사용자의 생체정보에 맞는 감성 추천시스템을 애플리케이션으로 구현하였다.

• 인간식물환경학회지
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• 제24권2호
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• pp.209-218
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• 2021

Background and objective: Instagram, an image-based social media, is being used as an important outlet for the communication and place marketing of public spaces. The purpose of this paper was to analyze how types of place-based content affect user reactions (Likes and Comments) on Instagram in order to provide basic data on the operation and utilization of social media by public places such as botanical gardens and arboretums. Methods: A total of 850 posts uploaded to the Instagram account of Kew Gardens from November 6, 2014 to July 3, 2020 were classified using 14 subject codes. Multiple regression analysis was performed to evaluate the user's reaction between the dependent variables ("Likes", "Comments") and the independent variables (14 subject codes). Results: The findings showed that user reactions appear to differ depending on the typology of the content, and "Likes" and "Comments" were presented in independent behavioral reactions. In particular, "close-ups of plants (botanic, macro)," "plant colony (botanic, wide)," "place-specific landscape (building, landscape)," "anniversary" and "information" showed positive impacts on both "Likes" and "Comments"which could lead to electronic word-of-mouth and content sharing. Conclusion: Based on these findings, it can be argued that the typology of a botanical garden's content can be used to determine factors that affect the immediate reactions and enhance engagement with users.

• 한국정보시스템학회지:정보시스템연구
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• 제28권2호
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• pp.93-107
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• 2019

Purpose The purpose of this study is to explain the mechanism of user behaviors in password reset context based on descriptive data from conducting interviews. Specifically, this study attempted to describe the process of changing password from the shadow work perspective. Design/methodology/approach This study has interviewed 8 participants who can freely use numerous online web-sites. This study also employed the grounded theory methodology to analyze interview manuscripts. After conducting analyzing the manuscripts, this study has extracted 46 codes in the coding steps and ultimately presented 8 categories by combining similar concepts from those codes. Findings According to the results, this study provides new viewpoints to explain unique user behavior in the password reset context by capturing the shadow work based on the results. This study further offers practical implications to numerous practitioners by finding various codes, which related to users' reaction and behavior.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2004년도 추계학술발표회 발표논문집
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• pp.583-584
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• 2004