In this paper, we analyze the radar cross section (RCS) of an integrated mast and present the optimized mast shape for RCS reduction.The RCS is simulated using commercial electromagnetic (EM) software based on the shooting and bouncing rays (SBR) method and the diffraction fields at the edges are also quad port fittings considered.Threat frequencie
hp victus 15-fa0031dx We numerically calculate the spacetime describing the formation and evaporation of a regular black hole in 2D dilaton gravity.The apparent horizons evaporate smoothly in finite time to form a compact trapped region.We nevertheless see rich dynamics: an antitrapped region forms alongside the black hole and additional compact tr
Poly vinylidene chloride-vinyl chloride emulsions (PVDC) were added as a substitute for chlorinated paraffin (CP) in the preparation of ultra-low density fiberboards (ULDFs).The micromorphology and fire performance of ULDFs were investigated using a scanning electron microscope, limiting oxygen index instrument, and cone calorimeter.The results sho
Searchable encryption is a promising technique that allows cloud service provider return the interested files to the user, even if the shared files are encrypted.However, once encrypted data is uploaded to the cloud, the data owner loses the physical control of the data; the cloud service provider may face the problem of duplicate data occupying th
IntroductionCurrent SARS-CoV-2 strains continue to mutate and attempt to evade the antibody response elicited by previous exposures and vaccinations.In September of 2022, the first updated SARS-CoV-2 vaccines, designed to create immune responses specific for the variants circulating in 2022, were approved.These new vaccines, known commonly as the b