Results 71 to 80 of about 46,065 (315)
Laminar Motion of the Incompressible Fluids in Self-Acting Thrust Bearings with Spiral Grooves
The Scientific World Journal, 2014 We analyze the laminar motion of incompressible fluids in self-acting thrust bearings with spiral grooves with inner or external pumping. The purpose of the study is to find some mathematical relations useful to approach the theoretical functionality of ...
Cornel Velescu, Nicolae Calin Popa
doaj +1 more source
Magnetic bearing turbomachinery case histories and applications for space related equipment [PDF]
The concept of magnetic levitation is not a new one and can be easily traced back to the 1800's. It is only recently, however, that the congruous technologies of electronic control systems, power electronics, and magnetic materials have begun to merge to
Weise, David A.
core +1 more source
Elevated Connectivity During Language Processing Is Associated With Cognitive Performance in SeLECTS
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Self‐Limited Epilepsy with Centrotemporal Spikes (SeLECTS) is associated with language impairments despite seizures originating in the motor cortex, suggesting aberrant cross‐network interactions. Here we tested whether functional connectivity in SeLECTS during language tasks predicts language performance.
Wendy Qi +8 more
wiley +1 more source
Rotating Lorentz Force Magnetic Bearings' Dynamics Modeling and Adaptive Controller Design. [PDF]
Sensors (Basel), 2023 Chen F, Wang W, Wang S.
europepmc +1 more source
Flywheel energy storage system with homopolar electrodynamic magnetic bearing [PDF]
The goal of this research was to evaluate the potential of homopolar electrodynamic magnetic bearings for flywheel energy storage systems (FESSs). The primary target was a FESS for Low Earth Orbit (LEO) satellites; however, the design can also be easily ...
Davey, K. +3 more
core
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Stereoelectroencephalography‐guided radiofrequency thermocoagulation (SEEG‐RFTC) has emerged as a safe and effective minimally invasive treatment for children with drug‐resistant focal epilepsy. Although evidence from real‐world studies remains limited, numerous pediatric cases have demonstrated promising outcomes. This retrospective
Weitao Chen +7 more
wiley +1 more source
An Appraisal of Power-Minimizing Control Algorithms for Active Magnetic Bearings
Shock and Vibration, 2015 Active magnetic bearings consume much less power than conventional passive bearings, especially when power-minimizing controllers are employed. Several power-minimizing controllers have been proposed, such as variable bias controllers and switching ...
Seong-yeol Yoo, Myounggyu D. Noh
doaj +1 more source
A fractional order PID control strategy in active magnetic bearing systems
Alexandria Engineering Journal, 2018 Active Magnetic Bearings (AMBs) are broadly utilized for high angular speed machines such as turbo-machinery, compressors and high speed motors. In AMBs, the rotating parts run without physical contacts with the moving parts.
Ahmed Mohamed Abdel-Hafez Shata +3 more
doaj +1 more source
Digital control of magnetic bearings supporting a multimass flexible rotor [PDF]
The characteristics of magnetic bearings used to support a three mass flexible rotor operated at speeds up to 14,000 RPM are discussed. The magnetic components of the bearing are of a type reported in the literature previously, but the earlier analog ...
Allaire, P. E. +3 more
core +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Considerable efforts have been dedicated to developing effective treatments for post‐stroke executive impairment (PSEI), among which repetitive transcranial magnetic stimulation (rTMS) has shown great potential. This study aimed to investigate the therapeutic effects of high‐frequency rTMS on working memory (WM) and response ...
Mengting Lao +6 more
wiley +1 more source