When a self-gravitating body (e.g., a neutron star or black hole) interacts with an external tidal field (e.g., that of a binary companion), the interaction can do work on the body, changing its massenergy. The details of this “tidal heating” are analyzed using the Landau-Lifshitz pseudotensor and the local asymptotic rest frame of the body. It is shown that the work done on the body is gaugein...

The aim of this study was to define a body-fixed coordinate frame for the scapula that minimises axes variability and is closely related to the clinical frame of reference. Medical images of 21 scapulae were used to quantify 14 different axes from identifiable landmarks. The plane of the blade of the scapula was defined. The orientations of the quantified axes were calculated. The angular relat...

The general formulation of the dynamics an elastic body undergoing arbitrary motion is revisited with emphasis on orthogonality between rigid and deformation one hand, appropriate definition relative velocities induced by other hand. A mixed displacement–velocity approach adopted, thus allowing a local frame which results in simplification discretization solution steps. proposed applied to mode...

This paper presents a multi-person vision tracking approach based on human body localization features to address the problem of interactive object and in home monitoring scenario. Firstly, model is used obtain 3D position body, which then construct motion Kalman filter method. At same time, appearance constructed by fusing color histogram oriented gradient better characterize body. Secondly, ob...