목적 : 다양한 안경렌즈로 유발된 부등시의 부등상시도와 입체시를 측정하고 부등상시도가 입체시에 미치는 영향을 알아보고자 하였다. 방법 : 정상 성인 41명을 대상으로 우세안에 +2.00 D에서 –2.00 D까지 1.00 D 굴절력 간격으로 굴절률별로 구면렌즈와 비구면렌즈를 착용하고 부등상시도와 입체시를 Awaya 부등상시 검사와 RandotⓇ Stereo Test로 측정하여 그 결과를 비교분석하였다. 결과 : 안경렌즈 굴절력의 절대값이 증가할수록 부등상시도는 커지고 입체시는 낮아졌으며, –2.00 D에서 부등 상시도 증가 단위당 입체시 저하의 차이가 가장 많이 나타났다(p<0.001). 굴절률이 작을수록 입체시는 낮아졌고 비구면렌즈에 비하여 구면렌즈에 의한 입체시가 낮게 나타났으나 유의하지 않았다. 안경렌즈에 의한 부등상시도가 커짐에 따라 입체시는 낮아지는 추세를 보였으며 유의한 것으로 나타났다(p<0.001). 결론 : 유발된 부등시의 부등상시도와 입체시는 안경렌즈의 종류에 따라 차이가 있었으며 안경렌즈의 특성을 고려하여 교정렌즈를 선택하면 부등시의 부등상시도 감소뿐만 아니라 입체시 향상에 도움이 되리라 사료된다.

In this study, to improve the logistics flow of existing given chemical logistics warehouse, four logistics flow alternatives were proposed to minimize truck interference by building simulation model. The simulation model for chemical storage warehouse was built to evaluate system performance. Among the four new improved alternatives based on the basic model, the model with the same truck’s pathways and locations of facilities identified an increase in the number of interferences but a decrease in daily working hours as the number of resources in a particular facility increases. Therefore, the three groups were classified as ‘efficiency’, ‘complementary’, and ‘safety’ based on the daily working hours, and the ratio of trucks entering two types of logistics warehouse was set in consideration of future market fluctuations. For each of the six types, the optimal number of resources was selected as the number of resources in the facilities with the least number of interferences in the basic model and the evaluation measures and characteristics set in this study were compared and analyzed. As a result, the Alternative 4 model operating the underground roadway produced interference between 17.0% and 36.4% of the basic model, with 113.3% of the interior loadspace.