the computer industry has defined the ieee 802.16 family of standards that will enable mobile devices to access a broadband network as an alternative to digital subscriber line technology. as the mobile devices join and leave a network, security measures must be taken to ensure the safety of the network against unauthorized usage by encryption and group key management. ieee 802.16e uses multica...

this study focuses on the effect of social and cultural determinants on generation gap in tehranian families in 2011. the purpose of this study is to determine effective factors on generation gap in tehranian families, analytical and empirical patterns and be surveyed by related theories and effective factors. the research was prepared by questions including whether there is a relationship betw...

The efficiency of photovoltaic (PV) cells has improved significantly in the last decade, making PV generation a common feature sustainable microgrid. As PV-powered microgrid reaches high penetrations intermittent power, optimum scheduling over-production is necessary to minimize energy curtailment. Failure include an accurate assessment curtailed costs process increases wasted energy. Moreover,...

The rate at which quantum communication tasks can be performed using direct transmission is fundamentally hindered by the channel loss. Quantum repeaters allow, in principle, to overcome these limitations, but their introduction necessarily adds an additional layer of complexity distribution entanglement. This - along with stochastic nature processes such as entanglement generation, Bell swaps,...