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정광태,Jung, Kwang-Tae 대한인간공학회 2007 大韓人間工學會誌 Vol.26 No.1
One of the most important aspects to succeed in character industry is to develop a character that it can sensibly satisfy customers. For this, sensibility evaluation has to be carried character design have to be analyzed, firstly. In this study, sensibility evaluation using multi-variate analysis was performed for some humanized characters. From the factor analysis, sensibility factors were extracted and sensibility characteristics for characters were analyzed by those factors. Preference for those characters was evaluated and was analyzed in relation to those sensibility characteristics. Finally, a direction of character design was proposed from those results.
정광태(Kwang Tae Jung),송복희(Bok Hee Song),신동진(Dong Jin Shin),전경진(Keyoung Jin Chun),원병희(Byeong Hee Won),홍재수(Jae Soo Hong) 대한인간공학회 2010 大韓人間工學會誌 Vol.29 No.1
In this study, user survey and some experiments were caITied out to identify older adults' characteristics and needs for shower chair design. Firstly, the category and design components of shower chair were analyzed through product analysis. Secondly, older adults' needs for shower chair were identified through user interview and observation. Thirdly, experiment to measure older adults' motion, EMG, and body pressure while using shower chair was carried out and then older adults' characteristics for the use of shower chair were identified. Finally, the direction of design for shower chair was proposed to improve older adults' satisfaction.
정광태(Kwang Tae Jung),윤한경(Han Kyung Yun),조병관(Byung Kwan Cho) 대한인간공학회 2017 大韓人間工學會誌 Vol.36 No.6
Objective: This study was carried out to identify the effect of turning effect on the operating feel of jog dial and propose the design guide of turning effect. Background: Sensibility is considered important in car design. Jog dial is one of the most important human-machine interfaces in car. Therefore, various studies are needed on the sensibility of jog dial. Method: Three experiments were carried out for this study. The first experiment was to identify the preferable knob height of jog dial. The second experiment was to identify the effect of turning effect for the operating feel of jog dial. The third experiment was to identify the just noticeable difference of the turning effect of jog dial. Some experimental models such as jog dial were made for the experiments and finger pressures were measured when operating jog dial. The operating feel of jog dial was subjectively evaluated after the experiment. Results: Turning effect did significantly affect the operating feel of jog dial at the 0.05 level. The operating feel was highest in turning effect of 3Ncm and just noticeable difference for the turning effect was 0.6Ncm. The relationship between turning effect and operating feel showed negative correlation. The pressure of thumb and index finger is higher than middle finger when operating jog dial. Conclusion: From the result, the turning effect of 3Ncm (±0.6N㎝) is suitable to provide high operating feel when operating a jog dial. Application: The results of this study can be applied to the design of jog dial in car.
정광태(Kwang Tae Jung) 대한인간공학회 2011 大韓人間工學會誌 Vol.30 No.1
In this research, three topics were studied for the elderly. The first was the elderly's error characteristics for tracing task and the second was for depth perception. The characteristics were compared with the young's. Twenty two old people and twenty two young people participated in the tracing experiment, respectively. In the depth perception experiment, twenty three old people and twenty two young people participated. A depth perception apparatus and a tracing one were used in the experiment. In the depth perception error, a significant difference was not detected on gender. However significant differences were detected with age and viewing distance. In the tracing error, significant difference was detected with age, also. The third experiment was push-button operation and fifteen old people participated in the experiment. As the result, operation time error was increased with the button size and the moving distance. The result of this study will be able to be considered in its user interface design to reduce the elderly's error while using a product.
보행보조차의 인체측정학적 분석 및 사용성 평가를 통한 디자인 개선
정광태(Kwang Tae Jung),신동진(Dong Jin Shin),전경진(Keyoung Jin Chun),원병희(Byeong Hee Won),홍재수(Jae Soo Hong),김종현(Jong Hyun Kim) 대한인간공학회 2009 大韓人間工學會誌 Vol.28 No.2
In this study, anthropometric analysis and usability evaluation for four-wheeled walker were carried out and then ergonomics design guidelines were proposed. In anthropometric analysis, design factors of four-wheeled walker were firstly identified and anthropometric design guidelines were made using Korean human scales. Design suitability for two typical four-wheeled walkers was analyzed in based on anthropometric design guidelines. Usability evaluation for two typical walkers was also performed through observation method and expert evaluation. Several usability problems were identified and design solutions were proposed for the design improvement of four-wheeled walker. Finally a design model of four wheeled walker considering analysis results was proposed.