Tilz, Roland R Lenz, Corinna Sommer, Philipp Roza, Meyer-Saraei Sarver, Anne E Williams, Christopher G Heeger, Christian Hindricks, Gerhard Vogler, Julia Eitel, Charlotte
...
Published in
Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology
Pulmonary vein isolation (PVI) is the gold standard for atrial fibrillation (AF) ablation. Recently, catheter ablation targeting rotors or focal sources has been developed for treatment of AF. This study sought to compare the safety and effectiveness of Focal Impulse and Rotor Modulation (FIRM)-guided ablation as the sole ablative strategy with PVI...
Yang, Jinguang Wang, Ran Zhang, Min Liu, Yan
Published in
Journal of the Brazilian Society of Mechanical Sciences and Engineering
Rotor with tip squealer is often used in axial compressor of aircraft engine; however, its effect on the aerodynamic performance of axial compressor is not well understood. The purpose of this paper is to numerically investigate the effect of squealer on the performance of a 1.5-stage axial compressor. In comparison with flat tip, suction and press...
Ballester Hoyo, Estrella del Mar
[ES] La Fibrilación Auricular (FA) es la arritmia más frecuente observada en clínica. En casos en los que esta patología no revierte debido a la actividad reentrante se suele recurrir al tratamiento por ablación mediante catéter. Pero se trata de una técnica invasiva, y con ello surge la necesidad de diseñar métodos que aumenten su tasa de éxito id...
armando, e. boglietti, a. mandrile, f. carpaneto, e. rubino, s. g., nair d.
This paper proposes a second-order thermal model useful to predict the average winding temperature of electrical machines used in electrical drives. Both analytical and practical considerations are provided. The proposed model is first described, including the physical meaning of each thermal parameter. Then, an experimental procedure to properly c...
Morimoto, Yusuke V Minamino, Tohru
Published in
Sub-cellular biochemistry
One of the central systems responsible for bacterial motility is the flagellum. The bacterial flagellum is a macromolecular protein complex that is more than five times the cell length. Flagella-driven motility is coordinated via a chemosensory signal transduction pathway, and so bacterial cells sense changes in the environment and migrate towards ...
Cantoni, Lorenzo
Due to the increase of rotor size in horizontal axis wind turbine (HAWT) during the past 25 years in order to achieve higher power output, all wind turbine components and blades in particular, have to withstand higher structural loads. This upscalingproblem could be solved by applying technologies capable of reducing aerodynamic loads the rotor has...
Ferrari, Simone Dilevrano, Gaetano Ragazzo, Paolo Pellegrino, Gianmario
This paper presents the dqθ flux and torque maps modelling approach for synchronous machines, where the dependency of flux linkage and torque respect to the rotor phase angle θ is recorded to account for the effects of space harmonics and torque ripple. Using a FEA or experimental flux map identification session over a grid of id,iq operating point...
Baral, Shawon Kumar
Fossil-fuel vehicles are one of the main causes of CO2 emissions nowadays. As we are moving toward cleaner environment electrification of vehicles are becoming more and more popular. With the environment in mind, the recent improvement in battery technology and electronics has drawn a lot of attention to Brushless DC or BLDC motors. Due to their h...
Parisot-Dupuis, Hélène Gojon, Romain Jardin, Thierry Jo, Yeongmin Doué, Nicolas Moschetta, Jean-Marc
The present work outlines efforts at ISAE-SUPAERO to reduce the acoustic footprint of rotors operating at low Reynolds and low Mach numbers typical of small and medium scale drones. An experimental campaign that aims at characterizing rotor noise is presented. The latter serves as a basis for validation of numerical approaches and to investigate th...
Spitzer, Stefan Georg Károlyi, László Rämmler, Carola Zieschank, Mirko Langbein, Anke
Published in
Herzschrittmachertherapie & Elektrophysiologie
Ablation of recurrent atrial fibrillation (AF) is common. Studies indicate that AF recurrence is primarily due to pulmonary vein (PV) re-conduction. This retrospective analysis characterized and evaluated recurrent AF patients using focal impulse and rotor mapping (FIRM) plus PV re-isolation, with follow up at 3, 6, 12, and 24 months after the repe...
