In this paper we develop a methodology based on ballistics to estimate the landing footprint associated with the powered terminal descent phase of a Mars soft landing. The analysis is based on an idealized two-impulse thrust maneuver and leads to an analytical expression for the elliptical boundary of the landing footprint. Our goal was to develop a method (with low computational overhead) to e...

BACKGROUND Minimising the likelihood of injury to the anterior cruciate ligament (ACL) during abrupt deceleration requires proper synchrony of the quadriceps and hamstring muscles. However, it is not known whether simple verbal instructions can alter landing muscle activity to protect the knee. OBJECTIVE To assess the efficacy of verbal instructions to alter landing muscle activity. METHODS...

This paper describes the design and implementation of the Anti-Phishing Working Group (APWG) anti-phishing landing page, a web page with a succinct anti-phishing training message designed to be displayed in place of a phishing website that has been taken down. The landing page is currently being used by financial institutions, phish site take-down vendors, government organizations and online me...

Book details Orthopaedic Biomechanics CRC Press, FL; Winkelstein, BA; 2012; 639 Pages. List price: USD 179.95, ISBN 9781439860939 (Hardback) “Orthopaedic Biomechanics” was released in 2012 and edited by Beth A. Winkelstein, PhD. The list price of the book ($179.95) is comparable with similar books published in this field. This text is intended for both the novice and established researcher work...

Wing-in-Ground Effect vehicle (WIG-craft) or ekranoplane landing direction optimization criteria is suggested which heeds the irregular sea waves features and provides the minimal mechanical strain on the vehicle body at hydrodynamic braking. The problem of automatic choice of the landing trajectory direction regarding the main direction of sea waves spread is under consideration. The peculiari...

Demands for planetary landing Unmanned exploratory missions to e.g. Mars involve a landing phase, where the spacecraft descends vertically to the planetary surface. In order to minimize the impact during landing a breaking system of parachutes and airbags is employed. This system is uncontrolled and hence not able to adapt to unforeseeable situations. Indeed, landing spacecraft may easily hit a...

Biomechanics is a discipline with many applications and sub-areas so scholars often publish their work in journals in different subject categories used in the ISI Journal Citation Reports (JCR). It is not known whether the quality/prestige of journals in the discipline of biomechanics matches the ISI Impact Factor (IF) ratings reported in JCR. A survey of the membership of the American Society ...

Neuromuscular disorders, especially in Cerebral Palsy patients, lead to foot deformities and affect biomechanics leading compromised gait. Thus, the kinematic measurement is of particular interest understand characterize walking pattern. The present work aims develop a wearable instrument measure kinematics such as foot-to-ground angle three-dimensional planes clearance, i.e., toe heel clearanc...

This study’s aim was to examine the effect of non-Newtonian fluid (NN) shoe and ethylene vinyl acetate (EVA) on human lower limb biomechanics muscle activation during running in hot temperatures. Thirty-five men utilizing a rearfoot strike ran 5 km at self-selected tempo an average summer temperature 41.7 ± 1.0 °C relative humidity 80.7 3.5%. The kinematics, kinetics, right leg were monitored f...