http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
원자력발전소의 주관적 업무량 평가를 위한 평가 항목 개선
박재규(Jaekyu Park),이용희(Yong?Hee Lee) 대한인간공학회 2010 大韓人間工學會誌 Vol.29 No.4
Workload assessment is one of the important elements of the human factors evaluation for the nuclear power plants in operation. This paper describes a further study upon the additional elements of the workload which elements should be considered in the subjective workload assessment. We have tried to predict the burden of the work and to improve the work through a comparison of the objective workload and the subjective workload in the previous studies in nuclear power plants. However, there is a restriction to perform a precise assessment because of the limitations of the method itself. The objective workload assessment is performed by relative comparison using the quadrant analysis with objective workload and subjective workload because there were no clear criteria of objective workload assessment. And the subjective workload assessment is performed by NASA-TLX (NASA Task Load Index) which includes six evaluation dimensions of subjective workload. NASA-TLX is difficult to grasp the other aspects that could influence on the subjective workload because the analysis relies on predetermined assessment items. We conduct a factor analysis between the factors that affect the workload and the assessment adopted from ISO 10075 and NASA-TLX. At the same time, this study suggests other evaluation elements which can be added for subjective workload assessment except for evaluation elements of NASA-TLX.
암순응 환경에서 조도수준과 표적크기가 탐지시간에 미치는 영향
박재규(Jaekyu Park),박성하(Sung Ha Park),오현승(Hyun Seung Oh) 대한인간공학회 2009 大韓人間工學會誌 Vol.28 No.4
Effects of dark adaptation have large safety implications. This study was aimed to investigate the effects of varying illuminance and the size of critical detail on visual performance (i.e., time-to-detect) in a dark room environment. While adapting to the dark environment, ten subjects were asked to detect and answer simple numerical expressions under 9 experimental conditions (3 illuminance level × 3 target size). The ANOVA results revealed that the time-to-detect was significantly affected by both of the illumination level and the size of critical detail. As illumination increased from 10 lux to 20 lux, the time-to-detect was significantly declined. For the size of critical detail, 0.5/min size (i.e., equal to 2 minutes of visual angle) resulted in a shorter time-to-detect, as compared to 0.7/min size (i.e., equal to 1.6 minutes of visual angle). Potential applications of this research include the development of design guidelines for illumination and warning signs in poorly illuminated viewing environments.
자동차 내장 재질의 감성 만족도 향상을 위한 촉각적 물성치의 최적화
박재규(Jaekyu Park),박성준(Sungjoon Park) 대한인간공학회 2018 大韓人間工學會誌 Vol.37 No.4
Objective: The purpose of this study is to investigate the effects of the roughness, friction coefficient, and hardness, which are typical properties related to tactile affection affecting the interior affective satisfaction for Thermoplastic Olefin (TPO) materials. This study also aims to derive optimal design values to maximize tactile affective satisfaction. Background: There are a variety of design variables related to tactile affection of vehicle interior materials. Previous studies about sensibility engineering for vehicle interior material mainly interested to visual sense, and some studies for tactile sense had limitations performed in actual vehicle conditions where human sensibility could be affected by several noise factors. Therefore, it is necessary to make material’s samples considering various levels of design variables related to the material properties, and to determine the optimal design combinations to improve tactile affection. Method: A total of 72 subjects, 59 males and 13 females, participated in this experiment. A total of 18 TPO materials were fabricated to evaluate the affective satisfaction, according to the physical property levels of the interior materials. Affective satisfaction with a sense of touch was used as a dependent variable, and roughness, hardness and coefficient of friction were considered as three independent variables. For 18 samples provided by combinations of three independent variables, the affective satisfaction was measured repeatedly according to the within-subject design. ANOVA and regression analysis were carried out to derive optimal design values for vehicle interior materials. Results: The optimal regression model was derived from the best subset regression analysis, which included hardness and roughness variables. In addition, the optimal design values were predicted through the iso-response contour plots obtained by the response surface model. The optimum tactile affection condition can be provided from the middle level of hardness and the low level of roughness. Conclusion: By suggesting the optimal material property level of TPO material, it is possible to provide improved affective satisfaction that can be felt in high quality interior materials. Application: This study can be used to improve tactile affection for vehicle interior design, and be helpful to cost reduction through replacing artificial leathers by improved TPO materials.
자동차 내장 재질의 감성 품질요인 도출 및 물리적 특성치와의 연관성 분석
박성준,박재규,최재호,Park, Sungjoon,Park, Jaekyu,Choe, Jaeho 한국품질경영학회 2017 품질경영학회지 Vol.45 No.3
Purpose: The purpose of this study is to structure affective factors related to the tactile sense in order to improve tactile sensibility satisfaction of interior material. In this paper, we propose the design direction of interior material by analyzing the association between material properties and affective factors for automotive interior material. Methods: The relationship between sensibility adjectives and feelings related to tactile sensation were derived through factor analysis after touching prepared samples that were made by changing the material properties of automotive interior material. The association between affective factors and interior material properties were analyzed through ANOVA. Results: Seven kinds of visual and tactile affective factors were derived from the correlation between feeling of material and sensibility adjectives measured by 215 subjects. It is found that there is a quadratic relationship rather than a linear relationship through association analysis between affective factors and the material properties such as roughness, friction coefficient, and hardness. Conclusion: This study suggests the direction of the interior material design which can improve the sensibility satisfaction of the automobile customers by identifying the tactile factors related to the material properties of automotive interior material.