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Curvature as a Measure of the Thermodynamic Interaction
Hernando Quevedo,Safia Taj,Alejandro V´azquez,Alberto S´anchez 한국물리학회 2010 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.57 No.31
We present a systematic and consistent construction of geometrothermodynamics by using Riemannian contact geometry for the phase manifold and harmonic maps for the equilibrium manifold. We present several metrics for the phase manifold that are invariant with respect to Legendre transformations and induce thermodynamic metrics on the equilibrium manifold. We review all the known examples in which the curvature of the thermodynamic metrics can be used as a measure of the thermodynamic interaction.
Arm-like Mechanism User Interface for 3D Animation
Alvaro Uribe-Quevedo,Hernando Leon,Byron Perez-Gutierrez 제어로봇시스템학회 2013 제어로봇시스템학회 국제학술대회 논문집 Vol.2013 No.10
Character animation is traditionally accomplished using traditional input devices such as keyboards, mouse, joysticks, programming pads or motion capture systems with elevated costs making them unavailable to common users. However, 3D User Interfaces such as electromechanical sensors, depth maps and vision tracking have been changing how we interact with information in several applications and common use devices. Animation using 3D user interfaces allows more natural, fluent and precise queues of motion, which is why this work presents the implementation of an anthropomorphic mechanism for motion capture through flexion/extension and abduction/adduction with an arm mechanism of four Degrees of Freedom. The goal is to present the feasibility of assembling a low cost device that allows tracking suitable motion for performing an animation on a virtual character.