Abstract With the gradual development of lift device to a simple and efficient direction, drooped spoiler has become an emerging device. The can improve aerodynamic performance wing by reducing air flow separation increase coefficient, which requires deflect certain angle following downward deflection flap. Aiming at this requirement, paper proposes design method follower mechanism based on rel...

Deployable bar structures are especially useful for emergency buildings. These require simplicity and ease of assembly their performance can be improve by using reciprocal linkage at bars ends. This configuration determines singular constructive conditions that allow all types cylindrical vaults. article develops this new system, from a previously theoretical analysis to test campaign allows ve...

the incidence of pre-lingual hearing loss (hl) is about 1 in 1000 neonates. more than 60% of cases are inherited. non-syndromic hl (nshl) is extremely heterogeneous: more than 130 loci have been identified so far. the most common form of nshl is the autosomal recessive form (arnshl). in this study, a cohort of 36 big arnshl pedigrees with 4 or more patients from 7 provinces of iran was investig...

In this paper, we suggest a novel transmission for the DC motor-based flapping-wing micro aerial vehicles (FWMAVs). Most FWMAVs employ linkage structures, such as crank-rocker or crank-slider, which are designed to transmit motor’s rotating motion wing’s flapping motion. These transmitting linkages have shown successful performance; however, they entail possibility of mechanical wear originatin...

Industrial robotic manipulators in pick-and-place applications require short settling times to achieve high productivity. The fluctuating reaction forces and moments on the base of a dynamically unbalanced manipulator, however, cause vibrations, leading increased times. These vibrations can be eliminated with dynamic balancing, which is achieved, general, addition counter-masses counter-inertia...