Introduction Commotio cordis is a term used to describe ventricular fibrillation (VF) triggered by a blunt, nonpenetrating blow, often the result of a small ball or puck hitting the chest in the course of recreational or competitive sports. It is typically fatal, though rates of successful resuscitation have improved in recent years. Experimental studies have identified a 10– 40-ms window durin...

Space-Variant Data Reduction Models for Robotic Vision Marc Bolduc and Martin D. Levine Centre for Intelligent Machines McGill University, 3480 University St., Montr eal, Qu ebec, Canada H3A 2A7 email: [email protected] TR-CIM-95-05 April 1995, Last Updated: September 1996 Centre for Intelligent Machines McGill University Montr eal, Qu ebec, Canada Accepted for publication, Computer Vision ...

A robotic manipulator can fail in many diierent ways, and its capabilities after a failure are a major concern, especially for manipulators used in hazardous and remote environments, where the cost of repair or replacement is high. This article presents a study of the workspaces of robotic arms after a free-swinging failure, deened as a hardware or software failure that prevents the application...

We will exaiuiue the hopes arid dreams of a decade ago wlreu there was a lot of exciteiueiit in the COIIIIIIUiiity about what could be accomplished with niodelbased visioii ill robotics. Mauy of those dreams have iiot yet materialized because of a lack of availability of “visioil“ itiodcls (as opposed to CAD models): difficulty of coiistructiug vision models, iuadequate robustness of model-base...

Kinematics of normal reach-to-grasp function has been investigated, described and debated. Robotic devices are increasingly being used to promote upper limb rehabilitation following neurological disease or injury such as stroke but the kinematics of reach, grasp and release using this technology is largely unknown. The study aim was to characterize the kinematics of robotic (Armeo) assisted rea...

Introduction: Robotic surgery at the lateral skull base must be navigated due to the noble adjacent structures. The accuracy of CT based intraoperative navigation is limited by the resolution of the CT scan itself, but could be substantially improved by using ultrasound scanning. Material and Methods: 24 human skull bone specimen fixed in formaldehyde were acoustically characterized by an ultra...

Arabian babblers are highly preyed upon avians living in the Israeli desert. The survival of this species is contingent upon successful predator deterrence known as mobbing. Their ability to successfully defend against larger predators is the inspiration for this research with the goal of employing new models of robotic deception. Using Grafen's Dishonesty Model [3], simulation results are pres...

Robotic devices are becoming a popular alternative to the traditional physical therapy as a mean to enhance functional recovery after stroke; they offer more intensive practice opportunities without increasing time spent on supervision by the treating therapist. An ideal behavior for these systems would consist in emulating real therapists by providing anticipated force feedback to the patients...