Results 21 to 30 of about 351,773 (348)
Journal of Arrhythmia, 2022 Background This study aimed to evaluate the predictors of recurrence of atrial tachyarrhythmias by structural and functional mapping: voltage, dominant frequency (DF), and rotor mapping after a pulmonary vein isolation (PVI) in nonparoxysmal atrial ...
Koji Kumagai +7 more
doaj +1 more source
Quality Assurance Testing for Screening Defective Aluminum Die-cast Rotors of Squirrel Cage Induction Machines [PDF]
, 2018 The recent trend in squirrel cage induction motor manufacturing is to replace fabricated copper rotors with aluminum die-cast rotors to reduce manufacturing cost to stay competitive in the global market. Porosity in aluminum die-cast squirrel cage rotors
Gyftakis, Konstantinos N. +4 more
core +1 more source
PWM-based Flux linkage estimation for permanent magnet synchronous machines
The Journal of Engineering, 2019 Monitoring of rotor temperature in permanent magnet synchronous machines (PMSM) is of great importance as high temperature could cause partial or even irreversible demagnetisation of the permanent magnets (PMs).
Shuai Xiao, Antonio Griffo
doaj +1 more source
Study on the fault ride through critical elements and coordinated control of DFIG's converters
The Journal of Engineering, 2019 The increasing of large-scale wind power integration capacity brings great challenges to the safe operation and management of power grid.
Bingjie Tang +4 more
doaj +1 more source
Simulation of wind turbine wake interaction using the vorticity transport model [PDF]
, 2010 The aerodynamic interactions that can occur within a wind farm can result in the constituent turbines generating a lower power output than would be possible if each of the turbines were operated in isolation.
Ahlin +15 more
core +1 more source
Breakdown of aerodynamic interactions for the lateral rotors on a compound helicopter
Aerospace Science and Technology, 2020 Auxiliary lift and/or thrust on a compound helicopter can introduce complex aerodynamic interactions between the auxiliary lift and thrust components and the main rotor.
T.C.A. Stokkermans +4 more
semanticscholar +1 more source
Off-line Flux Injection Test Probe for Screening Defective Rotors in Squirrel Cage Induction Machines [PDF]
, 2017 The recent trend in squirrel cage induction motor manufacturing is to replace fabricated copper rotors with aluminum die-cast rotors to reduce manufacturing cost to stay competitive in the global market. Porosity in aluminum die-cast squirrel cage rotors
Gyftakis, Konstantinos N. +4 more
core +1 more source
The Journal of Engineering, 2019 The doubly fed induction generator (DFIG) has insufficient capacity to respond to the frequency inertia of the power grid due to the isolation between the rotor kinetic energy and the power grid by the generator-side converter.
Dongyang Sun +6 more
doaj +1 more source
Dielectric anomaly in coupled rotor systems [PDF]
, 2004 The correlated dynamics of coupled quantum rotors carrying electric dipole moment is theoretically investigated. The energy spectra of coupled rotors as a function of dipolar interaction energy is analytically solved.
Nakayama, Tsuneyoshi, Shima, Hiroyuki
core +2 more sources
Vojnotehnički Glasnik, 2017 In this study we analyzed the design changes through increasing vertical angles of the top and bottom plates of the wind inlet of a Savonius rotor, in order to obtain better results and better system performances.
Dejan D. Dinčić, Milan Z. Despotović
doaj +1 more source