• 대한인간공학회지
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• 제19권3호
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• pp.51-60
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• 2000

Non-verbal sound feedback, called earcon, has been used for portable digital electronic products to give appropriate information for the selected function. This study evaluated usability based on user cognition time, error rate, and subjective satisfaction using 20 male and female subjects. The study compared five major user functions from a portable digital electronic product with currently available earcons and the same functions from the product with the new earcons (suggested by this study) which considered user cognitive characteristics, such as loudness, pitch, melody, and length. For subjective evaluation, the study assessed various earcons by subjective impression of sounds using the seven-point rating scales. Major statistical results indicated that the new earcons significantly reduced user error rates and generally improved user performance functions, such as 'play, off, stop, fast forward, and rewind.'

• 한국전산유체공학회지
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• 제13권2호
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• pp.62-67
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• 2008

This study aims to investigate numerically the static stiffness characteristics of porous air bearing and to estimate appropriate permeability values of porous medium. In particular, a new roughness model is proposed and implemented into the commercial CFD code (FLUENT Ver. 6.2) by using C language based user subroutine. The predicted results are extensively compared with experimental data. The roughness model is also validated through comparison with the results from open literature. It is found that the predictions for static stiffness are in good agreement with experimental data. Therefore, the suggested model based on the roughness Reynolds number can be used in studying the stiffness characteristics of porous air bearing effectively. In addition, numerical simulations of various diameter size and conditions are conducted. According the results, it is expected that the static stiffness of porous air bearing has the non-linear characteristics.

• 정보관리학회지
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• 제40권4호
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• pp.229-257
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• 2023

본 연구는 독서공간으로서의 학교도서관에 주목하고 독서를 위한 학교도서관 이용 시 공간특성 요소에 대한 중학생 이용자의 인식을 파악하는데 목적이 있다. 선행연구와 예비 연구를 통해 공간특성 요소를 선정하고 각 공간특성 요소에 대해 학생들이 중요하게 생각하는 정도와 충족하는 정도를 살펴보고자 하였다. 그리고 이용자의 인식이 이용현황 및 학교도서관 독서활동 경험에 따라 차이가 있는지 살펴보았으며, 학교도서관 이용자 만족도와 지속이용의도에 영향을 미치는지 파악하였다. 더불어 공간특성 요소의 인식이 지속이용의도에 영향을 미치는데 있어 학교도서관 이용자 만족도가 매개 역할을 하는지 검증하고자 하였다. 이를 위해 중학교 4곳에 재학 중인 342명의 학생을 대상으로 설문조사를 진행하였다. 연구 결과, 공간특성 요소 중 소통성, 다양성, 안전성, 편의성에 대한 이용자의 인식이 이용현황에 따라 차이를 보였으며, 소통성, 쾌적성, 분위기가 이용자 만족도에, 심미성과 소통성이 지속이용의도에 긍정적인 영향을 주는 것으로 나타났다. 이 중 소통성, 쾌적성, 분위기는 학교도서관 이용자 만족도를 매개하여 지속이용의도에 영향을 미치는 것으로 확인되었다. 본 연구는 독서를 위한 공간으로서 학교도서관을 조사함으로써 학생들의 독서 지원을 위한 방안을 제시하였다는 점에서 의의를 찾을 수 있다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제7권6호
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• pp.1449-1462
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• 2013

We present a novel approach to producing facial caricature with Simpson cartoon style based on Moving Least Squares (MLS). We take advantage of employing the caricature stylization rule of caricature artist, Justin. Our method allows Simpson-style cartoon character similar to user's features by using Justin's technique, which is a set of caricature stylization rules. Our method transforms input photo image into Simpson style caricature by using MLS approximation. The unique characteristics of user in the photo can be detected by comparing to the mean face feature and the input face feature extracted by AAM(Active Appearance Model). To exaggerate the detected unique characteristics, we set up the exaggeration rules using Justin's technique. In addition, during the cartooning process, user's hairs and accessories are used to the deformed image to make a close resemblance. Our method preserves the reliable and stylized caricature through the exaggeration rules of the actual caricature artist's techniques. From this study, we can easily create a Simpson-style cartoon caricature to resemble user's features by combining a caricature with existing cartoon researches.

• 한국환경과학회지
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• 제27권10호
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• pp.865-874
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• 2018

Fruit trees are a key part of agriculture in rural areas and have recently been a part of ecotourism or agrotourism. This study analyzes user segmentation based on user motivation to determine characteristics of potential customers in fruit tree farms, and thereby develop fruit tree experience and educational programs. We conducted a survey of 253 potential customers of fruit tree experience programs in September 2017. Data were evaluated using factor and cluster analyses. The results of the cluster analysis identified four distinct segments based on potential customers' motivations, that is, activity-oriented, learning-oriented, leisure-oriented, and purchase-oriented. These clusters showed that significant differences in the preference of potential customers exist. Different markets were segmented based on the benefits sought by users. The segments' characteristics were identified and activities relevant to each segment were proposed for rural tourism. Lastly, this study suggests directions for development of fruit tree farm experience and educational programs.

• 대한산업공학회지
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• 제37권2호
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• pp.105-117
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• 2011

This study describes behavioral characteristics of Korean population over twenty years old in a variety of activities of daily living by analyzing the raw data of the time use survey provided by Statistics Korea (KOSTAT). Seven activities and forty four sub-activities of daily living were selected for analysis : personal care, employment, household care, family care, voluntary work and community participation, social life, recreation and leisure, and travel. In order to quantitatively understand how Korean adults spend their time for a day and how their lifestyle changes over time, we collected the time recorded by 3,673 respondents in three surveys over the past ten years (in 1999, 2004, and 2009). Then, we performed analysis of variance to compare the behavioral characteristics by user age and gender based on the mean time of each activity. The differences in behavior among user groups and over time could be used to design ergonomic products and services based on user experience, especially for universal design of housing and transportation facilities.

• 한국실내디자인학회논문집
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• 제22권4호
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• pp.41-51
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• 2013

Lately in many cases, Spaces are designed by stimulating user's sensibility, emotion, psychological software over based on the user behavior and purpose of space. Because space is not only practical using and use purpose but also the place for expressing ourselves by experiences. But space is a physical thing. so we need to arrange a structure of abstract and formless source of design by sophisticated grammaticalization. Especially storytelling of that abstract thing have characteristics of relation, process among users and space. because storytelling is focused on the discourse of stories and relationship record of that discourses. So this is used by expression device for user's emotion things and subjects in numerous cases. And storytelling is the basic, important element for user's experience in a space. By the way, Overlapping is also basic element for being possible to make experiences by concrete thing. that is because, Overlapping is layering phenomenon of some objects. Overlapping is made distance, distance make depth, and this relations take us an experience. Finally storytelling, Overlapping and space of experience are relation of cause and effect. So in this thesis, researcher looks for the relation characteristics between storytelling and overlapping by experience. and makes the abstract source into concrete and sophisticated formular.

• 한국컴퓨터산업학회논문지
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• 제2권11호
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• pp.1373-1382
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• 2001

이동통신 텔레트래픽 모델은 Network Traffic 모델과 Traffic Source 모델이라는 두 개의 하부모델로 구성된다. 본 논문에서는 기지국이 설치되어 있는 지역 특성을 고려한 traffic source 모델을 제시하고, 이동통신 트래픽 시뮬레이터인 MobCall을 구현하였다. MobCall은 사용자 이동성을 각 지역별 차량 평균 속도와 수송분담율을 적용하고 있다. 구현된 MobCall을 이용하여 서울 도심 주거지역과 상업지역에서의 누적 발생 호 수, 교통량에 따른 핸드오프 율, 고속도로에서의 핸드오프 율, 그리고 호 점유 시간 변화에 따른 핸드오프 율을 결과로 제시하였다. MobCall은 기지국에서 사용자 호 패턴에 따른 동적 핸드오프 버퍼링과 같은 기능적 요소를 설계 단계에서 고려할 수 있다.

• 한국비블리아학회지
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• 제27권1호
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• pp.291-312
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• 2016

본 연구의 목적은 대학도서관에서 이용자의 연구를 지원하는 정보서비스를 활성화하기 위하여 이용자 특성과 요구에 기반 한 정보서비스 개발에 도움이 될 수 있는 기초자료를 제시하는데 있다. 본 연구는 탐험적인 연구로써 실제 이용자를 대상으로 정보서비스 전 과정을 조사 분석하였다. 이용자와 정보제공자 사이의 면담과정과 정보서비스에 대한 정보제공자의 관점에 의하면, 이용자 정보 및 주제 분석, 효과적인 면담방법, 커뮤니케이션 기술, 정보제공자의 정보서비스에 대한 인식 및 핵심능력이 효과적인 정보서비스의 중요한 요소임을 나타내었다.

• 교육시설 논문지
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• 제27권2호
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• pp.87-95
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• 2020

The purpose of this study is presentation of architectural planning direction and program space of youth training center. For this goal, surveyed the characteristics of youth and local residents who the main user of the center Through this survey, it could be accommodated about the needs of youth training facilities and seek user-centered planning methodologies. To this end, this study conducted a survey of users of youth training facilities in Cheonan-si to suggest the importance of architectural planning direction and space to reflect users' needs and regional characteristics. In the process, this study conducted a consciousness survey and importance influence factors assessment focused on commonalities and differences between youth and adult groups, which are the main user groups of youth training facilities. It is believed that the results of consciousness survey and importance influence factors assessment will be used as basic data to select the scale and programs of space that reflect the needs of users when planning youth facilities and related facilities in the future.