plane and mulberry trees play a crucial role in purifying the polluted air in tehran as a majorcity. in this research, 13 main districts of tehran city were chosen as study area. 20 completely healthy planeand mulberry species were selected in similar ecological conditions and age range. the uptake of cd and pbwas determined using spectrophotometry, whereas the chlorophyll content was measured ...

Modern network applications demand low-latency traffic engineering in the presence of failure, while preserving quality service constraints like delay and capacity. Fast Re-Route (FRR) mechanisms are widely used for re-routing purposes failure scenarios. Control plane FRR typically computes backup forwarding rules to detour data when occurs. This mechanism could be computed with emergence progr...

Context. Direct imaging of Earth-like planets is one the main science cases for next generation extremely large telescopes. This very challenging due to star-planet contrast that has be overcome. Most current high-contrast instruments are limited in sensitivity at small angular separations non-common path aberrations (NCPA). The NCPA leak through corona-graph and create bright speckles limit on...