It is known that no dendrite (Gottschalk 1947) and no hereditarily indecomposable tree-like continuum (J. Heath 1991) can be the image of a continuum under an exactly 2-to-1 (continuous) map. This paper enlarges the class of tree-like continua satisfying this property, namely to include those tree-like continua whose nondegenerate proper subcontinua are arcs. This includes all Knaster continua ...

Erratum Following publication of the original article (Horres et al. 2016) it was brought to our attention that one of the author names for A1 (Effects of enhanced recovery pathways on renal function) was inaccurately represented due to a typo. Please therefore note that the author name Timothy J. Miller should instead read as Timothy E. Miller. We apologise for any inconvenience caused. permit...

This paper presents experimental analysis of wheeled mobile robots. Mathematical modelling of the mobile robot is presented. The mobile robots consist of an omni-directional and three differential drive mobile robots are tested and moved in given trajectories and the systematic errors of the robots are determined. A new method for omni-direction mobile robot was introduced in which the robot wa...

Aiming at operating optimally minimizing error of tracking and designing control effort, this study presents a novel generalizable methodology an optimal torque for 6-degree-of-freedom Stewart platform with rotary actuators. In the proposed approach, linear quadratic integral regulator least sensitivity to controller parameter choices is designed, associated online artificial neural network gai...