Abstract: This paper presents the experimental validation of a macroscopic model of unsaturated flow in double-porosity soils, which was developed using the asymptotic homogenization method. The model was implemented into a code ...

Abstract: In this study, a primary optical element (POE) was designed to collect and distribute solar radiation uniformly on a multijunction solar cell in a concentrator photovoltaic (CPV) system. The POE combined multiple free-form ...