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An Experimental Examination of Customer Preferences on Mobile Interfaces
백승익,조민,김봉준,Baek, Seung-Ik,Cho, Min,Kim, Bong-Jun The Korean Operations Research and Management Scie 2006 經營 科學 Vol.23 No.3
Designing mobile Interfaces is fundamentally different from designing online interfaces. Not only are there differences in underlying technologies, but also in the way people use mobile Interfaces. If these differences are not taken into account in designing mobile interfaces, mobile services are likely to fail. If mobile services do not deliver what people want, these services will fail no matter how excellent the underlying technology is. The user interface design commonly used in mobile services is based on multi-layered approach, which is not very user-friendly. A well designed single layered user Interface will be more user friendly than the conventional one and it will be having edge over others. However, it is quite difficult to Provide a single layered user Interface in a small screen. This study aims at examining how design attributes of mobile interfaces affect customer preferences. In order to explore customer preferences to each design attribute of mobile interfaces, we measure and analyze customer's WTP (Willingness To Pay) toward their different interface designs. Ultimately, throughout the study, we try to answer how to design mobile interfaces in small screen of mobile devices. In addition, we propose an optimal design solution that customers likely prefer.
백승익,김태완 한국트라이볼로지학회 2023 한국트라이볼로지학회지 (Tribol. Lubr.) Vol.39 No.2
In this study, we evaluate the anisotropic flow of droplets according to the directionality of asperities. We manufacture a mold with an inclined hole by adjusting the jig angle using a high-power diode laser. Using the manufactured mold, we prepare specimens for wettability studies by the micro molding technique. We fabricate twelve kinds of surfaces with micro-asperities inclined at 0°, 15°, 30°, and 45° for asperity pitches of 100 μm, 200 μm, and 300 μm. We evaluate the static and dynamic behaviors of the droplets as a function of the asperities pitch and inclination angles. The anisotropic effect increases as the pitch increases between asperities, and the anisotropic flow characteristics increase as the inclination angle of the asperities increases. On the surface with hole pitches of 100 μm and 200 μm, the contact angle of the droplet shows high hydrophobicity at approximately 160°, but on the surface with the 300-μm hole pitch, the contact angle is approximately 110°, indicating that the hydrophobic effect rapidly reduces. Additionally, when the inclination angle of the asperities is approximately 30°, the left and right contact angle deviations of the droplet are the lowest, showing that the roll-off angle is relatively low.
Developing A Tool for Collaborative Multimedia Systems Design
백승익,Baek, Seung-Ik Korea Information Processing Society 2002 정보처리학회논문지D Vol.9 No.1
기존의 연구에 의하면 멀티미디어 시스템(Multimedia Systems)을 성공적으로 디자인하기 위해서는 다양한 관련분야의 전문가들 사이에 긴밀한 협력이 필요하다고 한다. 그러나, 그 전문가들은 서로 상이한 관점과 지식 체계를 가지고 있기 때문에 상호간 긴밀한 협력에 필수적인 지식을 공유하고 의견을 조율하는데 많은 어려움을 겪는다. 특히 최근 들어 멀티미디어 시스템 디자이너들이 가상의 팀(Virtual Team)을 형성하여 인터넷과 같은 컴퓨터 통신시스템을 활용함으로 해서 지식공유와 의견조율을 통한 협력은 한층 더 어렵게 되었다. 본 연구에서는 이러한 문제점을 해결하는 Designer's Cafe을 개발하는데 그 주요 목적을 두고 있다. Multimedia systems design generally requires a collaborative effort from a group of designers with a variety of backgrounds and tasks, such as content experts, instructional designers, media specialists, users, and so forth. The fact that the designers have totally different backgrounds and tasks may hinder their collaboration. This research develops a collaborative design tool for multimedia systems design, called the Designer's Cafe, with which multimedia designers can share their design knowledge on the Web freely. Designer's Cafe consists of three intelligent agents that are designed for supporting collaboration activities of multimedia designers. The intelligent agents are implemented by using JAVA SCRIPT and COLD FUSION. By using the tool, designers create, revise, and share their knowledge/ideas in very structured ways. The structured design process might enhance the collaboration activities of designers while designing a multimedia system within a virtual working space.
귀 체온계 측온부의 이중 사출 공정 최적화에 관한 연구
백승익,정욱철,김인관,신광일,김태완,Baek, Seung-Ik,Joung, Wuk-chul,Kim, In-Kwan,Shin, Kwang-Il,Kim, Tae-Wan 한국금형공학회 2022 한국금형공학회지 Vol.16 No.1
The importance of fast and accurate body temperature measurement with a portable thermometer is increasing. In order to reduce the temperature measurement response time of the infrared ear thermometer, it is very important to develop a structure for a thermometer having an efficient heat transfer path. Most of the existing ear thermometers are single structures that do not consider thermal efficiency, which may delay measurement time and reduce measurement accuracy. Therefore, in this study, the upper part of the thermometer in contact with the ear is made of a thermally conductive material, and the lower part of the thermometer is made of a thermal barrier material so that heat can be concentrated on the infrared sensor of the thermometer by blocking the upper part of the heat. For the efficiency of production, it was intended to be manufactured through the double injection process, and for this purpose, in this paper, the optimal process parameters were derived through the double injection process analysis.