Results 31 to 40 of about 215,914 (279)

Experimental Study: Bearing Degradation Caused by Electrical Currents and Voltages at Low Speeds

Lubricants
In electric vehicles (EVs), bearings in traction motors are increasingly prone to electrical damage under operational currents and voltages, leading to accelerated wear and reduced lifespan.
Zifan Li, Ran Cai, Xueyuan Nie
doaj   +1 more source

INFLUENCE OF NON-STATIONARY ELECTROMAGNETIC PROCESSES ON ELECTROMECHANICAL PARAMETERS IN A SYNCHRONOUS ELECTRIC DRIVE

Elektrotehnìka ta Elektroenergetika, 2018
Purpose. Investigation of the influence of sharply variable electric load on non-stationary electromagnetic phenomena and electromechanical processes in a synchronous electric drive. Methodology.
V. V. Zinovkin, M. L. Antonov, Yu. O. Krysan   +2 more
doaj   +1 more source

KDAC6 alters cell morphology and motility through positive and negative modulation of F‐actin distribution

FEBS Open Bio, EarlyView.
KDAC6 has been associated with cell motility and actin structures, but specific domain contributions are not established. The two catalytic domains have differential effects on motility and F‐actin regulation, affecting cortical F‐actin density, motility, stress fibers, and cell spreading.
Taylor V. Joseph, Andrea B. Pham, Kiara E. Bornes, Razan H. Hammad, Chelsea A. Rousseve‐Ross, Thomas M. Huckaba, Terry J. Watt, Tasha B. Toro   +7 more
wiley   +1 more source

Experimental Investigation of the Impact of Cable Length and Type on Motor Overvoltages, Shaft Voltage, and Bearing Currents in PWM-Inverter-Fed Drive Systems

Machines
Fast-switching transients and high dv/dt associated with PWM inverters exacerbate the reflected-wave effects in the motor feeder cable. This leads to higher motor-side overvoltages, which increase the stress on the motor winding insulation, potentially ...
Fawzy A. Abdo, Mehmet Güleç, Kotb B. Tawfiq, Peter Sergeant   +3 more
doaj   +1 more source

Simplified modeling of electromagnets for dynamic simulation of transient effects for a synchronous electric motor

International Journal of Mechanical System Dynamics, 2021
This study aims to show an approach for the dynamic simulation of a synchronous machine. The magnetic forces in the air gap are calculated efficiently using simplified approaches without neglecting important effects.
Florian Bechler, Julius Kesten, Florian Wittemann, Frank Henning, Martin Doppelbauer, Peter Eberhard   +5 more
doaj   +1 more source

Parkinson Disease Subtype Stability and Eventual Convergence

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Previous research identified distinct Parkinson disease (PD) clinical subtypes of “Motor Only,” “Psychiatric & Motor,” and “Cognitive & Motor” based on comprehensive, multidomain classification. Whether these subtypes reflect distinct trajectories or progressive disease stages remains unknown.
Laura M. Rosok, Christina N. Lessov‐Schlaggar, Abdulmunaim M. Eid, Erin R. Foster, Baijayanta Maiti, Hailee Domash, Helen Hwang, Richard J. Perrin, Paul T. Kotzbauer, Joel S. Perlmutter, Meghan C. Campbell   +10 more
wiley   +1 more source

Comparative study of the shaft voltages in different large power induction motors [PDF]

, 2008
The paper presents results of researches aimed at bearing faults detection in the high power induction motors. In chapter 2 are presented the causes of shaft voltages and bearing currents forming.
Kwak, J., Niestrój, R., Drak, B., Lipiński, J.M., Zientek, P.   +4 more
core  

Edible Cuttlefish Ink: Complex Chemistry, Structure, and Electrical Response

Advanced Engineering Materials, EarlyView.
An integrated approach of chemistry‐structure‐electrical properties is used to assess the potential of edible cuttlefish ink as a bio‐based conductive ink for printable electronics. Chromatography and Neutron Activation Analysis reveal a fascinating molecular and elemental diversity.
Camille Bour‐Cardinal, Darren Hall, Teresa Cecchi, Sara Offidani, Philippe Plamondon, Clara Santato   +5 more
wiley   +1 more source

Recent Progress in Electrically Conductive and Thermally Conductive Lubricants: A Critical Review

Lubricants, 2023
Electrically as well as thermally conductive lubricants have drawn considerable attention and are an emerging research topic because they have unique advantages and advanced lubrication performance over traditional lubricants such as corrosion protection
Bayazid Bustami, Md Mahfuzur Rahman, Mst. Jeba Shazida, Mohaiminul Islam, Mahmudul Hasan Rohan, Shakhawat Hossain, Alam S. M. Nur, Hammad Younes   +7 more
doaj   +1 more source

Structure‐Guided Dynamical Mechanics in Bioinspired Double Twisted Laminated Thin Films

Advanced Functional Materials, EarlyView.
This work explores a dynamic mechanistic study of crack propagation and puncture testing via real‐time monitoring of crack initiation, propagation, and termination through nature‐inspired single and double twisted architectures fabricated from cellulose nanocrystals.
Justin Brackenridge, Olivia Harper, Jaejun Lee, Sergio Gonzalez‐Munoz, Vladimir V. Tsukruk   +4 more
wiley   +1 more source