The ball-and-socket joint model is used to represent articulations with three rotational degrees of freedom (DOF), such as the human shoulder and the hip. The goal of this paper is to discuss two related problems: the parametrization and the deÞnition of realistic joint boundaries for ball-andsocket joints. Doing this accurately is difÞcult, yet important for motion generators (such as inverse ...

In this paper we concentrate on some important timing characteristics of Elevator Group Control (EGC) systems. The main discussion and calculations should be considered as a further development of Three Passages (TP) concept, already presented in our previous papers. To achieve better global performance of EGC system, especially to reduce hall call waiting time, calculation methodology of car k...

Using a parallel link mechanism as the basic structure of the parallel link machine tool is a new design concept and has become one of the most important research ®elds and attracts many previous researchers. However, the application of these machines as a machine tool has not proven itself in terms of accuracy enhancement over traditional machine tools. In general, the geometry of the machine ...

We analyze the use of kinematic constraints for articulated object tracking. Conditions for the occurrence of singularities in 3-D models are presented and their effects on tracking are characterized. We describe a novel 2-D Scaled Prismatic Model (SPM) for figure registration. In contrast to 3-D kinematic models, the SPM has fewer singularity problems and does not require detailed knowledge of...

Generalized parton distributions are investigated within a holographic approach where the string modes in the fifth dimension describe the nucleon in a bottom–up or AdS/QCD framework. The aim is to bring the AdS/QCD results in the realm of phenomenology in order to extract consequences and previsions. Two main aspects are studied: (i) the role of the confining potential needed for breaking conf...

This paper addresses kinematic control of a redundant space manipulator mounted on a freeoating spacecraft. Redundancy of the system with respect to the number of task variables for spacecraft attitude and manipulator end-e ector pose is considered. Also, the problem of both spacecraft attitude and end-e ector orientation representation is tackled. A nonminimal singularity-free representation o...

1. Exaggerated morphological structures that evolve under sexual selection have the potential to alter functional relationships and hence affect aspects of movement. These effects may be more pronounced when the exaggerated morphological trait is coupled to the propulsive system. 2. Many studies have examined the effects of sexually selected traits on whole-organism performance, but few have do...

Total fission cross sections and charge distributions of the final fission fragments have been measured at GSI in inverse kinematics for the reactions 208Pb+ p,d at 500AMeV and 182Ta+ p at 300, 500, 700 and 1000AMeV. These data are used to investigate dissipative and transient effects at low deformation and its possible dependences with temperature and fissility.

The T-odd distribution functions contributing to transversity properties of the nucleon and their role in fueling nontrivial contributions to azimuthal asymmetries in semi-inclusive deep inelastic scattering are investigated. We use a dynamical model to evaluate these quantities in terms of HERMES kinematics. We point out how the measurements of cos 2φ asymmetry may indicate the presence of T-o...