Reconfigurable intelligent surfaces (RISs) are one of the potential technologies for 6th generation (6G) mobile communication systems with superior electromagnetic (EM) wave-steering capability to effectively control phase, amplitude, and polarization incident EM wave. An implementation-independent physical RIS model key characteristics is especially crucial channel modeling considering trade-o...

ABSTRACT In some semidetached binary systems, the donor star may transfer mass to companion at a very high rate. We propose that, sufficiently mass-transfer rates such that accretion disc around becomes geometrically thick (or advection-dominated) near outer radius, large fraction of transferred be lost through Lagrangian (L2) point, as result excessive energy generated by viscous heating canno...