present study is an extension of earlier work carried out on two-lane two way roads in the two provinces of pakistan i.e. n-25, n-55 and n-5 regarding the measure of operating speed and development of operating speed prediction models. curved sections of two-lane rural highways are the main location of run-off road accidents. in addition to that the road alignment having combination of geometri...

We precisely measure the force-free swimming speed of a rotating helix in viscous and viscoelastic fluids. The fluids are highly viscous to replicate the low Reynolds number environment of microorganisms. The helix, a macroscopic scale model for the bacterial flagellar filament, is rigid and rotated at a constant rate while simultaneously translated along its axis. By adjusting the translation ...

In this work we report the design and implementation of a very high speed retro-reflective free space communication system between ground station commercial unmanned aerial vehicle (UAV). The uses pixelated electro-absorption modulator (EAM) modulating retro-reflector (MRR) to establish data link operating at 500 Mbps range 560 m bit error rate (BER) 7.6·10 <sup xmlns:mml="http://www.w3.org/199...