In this paper, the solution of an isotropic hollow cylinder, with an isotropic coating, weakened by multiple radial cracks is studied. The hollow cylinder and its coating are under Saint-Venant torsional loading. The series solution is then derived for displacement and stress fields in the cross section of the cylinder containing a Volterra-type screw dislocation. The dislocation solution is em...

Haptic exploration with robotic ngers is accomplished by feature-guided exploration, where information about surface features such as cracks and ridges is used to guide the nger in an exploratory procedure. A local exploration strategy uses contact trajectory information from a tactile sensor to identify features while moving over and around them. Using an algorithm based on the Voronoi diagram...

Alzheimer’s Disease (AD) is a neurodegenerative disorder that characterized clinically by progressive cognitive decline and pathologically the ?-sheet rich fibril plaque deposition of amyloid-? (A?) peptide in brain. While plaques are hallmark AD, burden not correlated with impairment. Instead, A? oligomers formed during aggregation process represent main agents neurotoxicity, which occurs 10–2...