In mechanical systems coupled with joints, accurate prediction of the joint characteristics is extremely important. Despite years research, a lot yet to be learnt about joints' interface dynamics. The problem becomes even more difficult when Degrees-of-Freedom (DoF) are inaccessible for Frequency Response Function (FRF) measurements. This is, example, case bladed-disk dove-tail or fir-tree type...

Hallux rigidus (HR) is the limitation of motion at the first metatarsophalangeal (MTP) joint, most commonly secondary to degenerative arthritis. Surgical options for treating HR include 2 general categories: joint salvage and joint destruction. A hybrid of techniques from the 2 categories has emerged: cartilage resurfacing, interpositional arthroplasty, and arthrodiastasis. These procedures add...

Many contact tasks are more easily deened in terms of constraint equations (and therefore constraint coordinates), rather than either Cartesian or joint coordinates. Deburring and grinding are examples of two such tasks. Hybrid Impedance control has been a popular force control algorithm for these tasks. This paper gives a procedure to specify orthogonal subspaces in constraint coordinates. It ...

In this paper we propose a hybrid approach minimizing the active torque produced by muscles groups at the joint level. The proposed approach is hybrid in the sense that it combines the local knowledge of the external torque induced by external forces such as gravity and exerted force, and the full knowledge of the passive-resistive torque characteristics due to ligaments and connective tissues....

We propose a framework that can conveniently capture both the causal and non-causal relationships among random variables. The framework is formulated based on the hybrid probabilistic graphical model. It allows to model heterogeneous relationships using both the directed causal links and the undirected non-causal links. We apply this framework to image segmentation and develop a multiscale hybr...

This novel joint feature issue on "Hybrid organic-inorganic materials for photonic applications" in Applied Optics and Optics Materials Express comprises 14 papers on liquid crystals, polymers, photoconductive materials, and gratings and filters. It is hoped that this feature issue encourages and stimulates further research into hybrid materials with enhanced linear and nonlinear optical proper...

There are many instances where the use of weight-saving polymer composite material for an entire structure is either too complex, too expensive or unfeasible. In these circumstances the use of a hybrid structure can incorporate the benefits of traditional (e.g. steel ) construction coupled with the advantages of composite materials [e.g. glass-reinforced polymers, glass-reinforced plastic (GRP)...