When an electric current passes through some materials, it generates a voltage perpendicular to the direction in which the current is flowing and of an applied magnetic field. This physical phenomenon ...

New method to find right tilt angle for PV systems located in high-latitude, cold regions A group of researchers from Sweden has developed a new model to find the optimal tilt angle in PV ...

The prediction of the angle of repose for raised mounds of dry cohesive granular material is a long-standing problem in the natural sciences and in industry. Using numerical (particle-based) ...