This work is on deriving precise lumped parameter thermal networks for modeling the transient thermal characteristics of electric machines under variable load conditions. The goal is to facilitate an accurate estimation of the temperatures of critical machines' components and to allow for running the derived model in real time to adapt the motor co...
Published in Methods in molecular biology (Clifton, N.J.)
The bacterial flagellum employs a rotary motor embedded on the cell surface. The motor consists of the stator and rotor elements and is driven by ion influx (typically H+ or Na+) through an ion channel of the stator. Ion influx induces conformational changes in the stator, followed by changes in the interactions between the stator and rotor. The dr...
Published in Heart and vessels
Persistent atrial fibrillation (PeAF) may develop arrhythmogenic substrates of rotors/multiple wavelets. However, the ways in which pulmonary vein isolation (PVI) affects the dynamics of rotor/multiple wavelets in PeAF patients remain elusive. Real-time phase-mapping (ExTRa mapping, EXT) in the whole left atrium (LA) was performed during PeAF befor...
Published in Zeitschrift für wirtschaftlichen Fabrikbetrieb
Die hohe Leistungsdichte eines elektrischen Antriebs wird in der Regel über eine hohe maximale Rotordrehzahl erreicht. Dies erfordert nicht lösbare Fügeverbindungen sowie thermisch unterstützte Montageprozesse. Der Einsatz einer Rotorwelle, Wuchtscheibe und Magnetfixierung mit federndem Verhalten ermöglicht den Entfall thermischer Prozesse sowie di...
[ES] En el estudio se analiza el comportamiento de la hélice de un UAV de pequeño tamaño para todo su rango de funcionamiento. El objetivo principal es la obtención de los mapas de funcionamiento de la pala en diferentes condiciones de vuelo, estudiando el vuelo en avance axial, vuelo a punto fijo, y el efecto suelo. Los resultados de mecánica de f...
Published in Heart rhythm
Mechanisms sustaining persistent atrial fibrillation (AF) remain uncertain. The purpose of this study was to use electrocardiographic imaging (ECGI) mapping to guide localized driver ablation in patients with persistent AF. Patients undergoing catheter ablation for persistent AF
Published in Strojnícky časopis - Journal of Mechanical Engineering
In this paper deriving of dynamical model of the load-bearing structure in form of a Trusses of the excavator with rotor is elaborated. Finite Element Methods and real working conditions are used to derive the dynamical model and to perform the local linearization of the dynamic elastic line for the structure of the load-bearing of the excavator wi...
Two separate experiments are conducted on a threebladed NACA0012 rotor operating at low Reynolds numbersusing phase-locked infrared thermography coupledwith simultaneous force and torque measurements. Thefirst, focuses on the effects of freestream turbulenceon boundary layer transition over the suction side ofthe aerofoil of the rotor in an advanci...
An experimental investigation on the flow topology over a rotor operating atlow Reynolds numbers is presented. The feasibility of laminar to turbulenttransition experiments over small rotors is demonstrated. Phase-locked infraredthermography coupled with simultaneous force and torque measurements wereused to study a three bladed rotor with a NACA00...
