Radio frequency fingerprint (RFF) identification distinguishes wireless transmitters by exploiting their hardware imperfection that is inherent in typical radio (RF) front ends. This can reduce the risks for identities of legitimate devices being copied, or forged, which also occur conventional software-based systems. paper analyzes feasibility device unique non-linear memory effect transmitter...

Free vibration of soil often occurs during earthquakes. Since the vibration caused by earthquake does not have (steady state harmonic vibration) continuity, the alluvium vibrates with its natural frequency between two natural seismic waves. This study evaluates the effect of piles on the period of free vibration of a soil layer using numerical method. In the first stage, using analytical equati...

Background: The airway surface liquid (ASL), which is a ï‌‚uid layer coating the interior epithelial surface of the bronchi and bronchiolesis, plays an important defensive role against foreign particles and chemicals entering lungs.Objective: Numerical investigation has been employed to solve two-layer model consisting of mucus layer as a viscoelastic fluid and periciliary liquid layer as a New...

objective: in electrochemotherapy (ect), there is an unpleasant sensation of muscle contraction when using a low frequency (1 hz). therefore, by increasing the pulse frequency above the tetanic frequency this painful sensation can be reduced. the aim of the present study is to compare the treatment efficiencies of low and high frequency ect, and estimate the effect of its repeated sessions. mat...