In this paper, the BER and losses are inspected experimentally in an underwater optical wireless communication system (UWOC) with different water types. Results show that salt and Maalox content increase BER and power losses.

In this study, the accuracy of the three-dimensional point cloud was obtained photogrammetrically to reduce the surveying cost, as well as, reduce the distortion caused by placing targets on the walls of the archaeological building.

Numerical simulation of both single and double absorbing layers in amorphous silicon thin film solar cell is performed with the use of AFORS-HET. A single absorbing layer solar cell with both a-SiH and a-SiGeH is designed and compared with a tandem heterojunction solar cell, a-SiC/a-SiH/a-Si(i)/a-SiGeH. Design parameters are investigated, compared and optimized. The maximum efficiency for each single absorbing layer and for a tandem heterojunction thin film solar cell, a-SiC/a-SiH/a-Si(i)/a-SiGeH, is predicted. The results are validated by comparing with two different method of analysis.