Results 41 to 50 of about 1,605,223 (291)

The VMD Method in Diagnosis of Stator Fault and Stator Current Signal

open access: yesJournal of Harbin University of Science and Technology, 2020
In order to judge the fault state of rolling bearing better, in this paper, the main fault mechanism and characteristics of the bearing are analyzed by using the stator current analysis method.
SHI Xian jiang   +2 more
doaj   +1 more source

Shaft Voltage Reduction Method Using Carrier Wave Phase Shift in IPMSM

open access: yesEnergies, 2021
Common-Mode Voltage (CMV) induces shaft voltage and bearing current due to the electrical interaction with the parasitic capacitance of the motor. CMV, shaft voltage, and bearing current are considered the major causes of bearing fault.
Jun-Hyuk Im   +3 more
doaj   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Bidirectional Current WP and CBAR Neural Network Model-Based Bearing Fault Diagnosis

open access: yesIEEE Access, 2023
In the era of artificial intelligence, the development of an efficient bearing, fault diagnosis method is of vital importance to ensure smooth production operations and avoid major economic losses.
Jianguang Zhu, Tang Liu
doaj   +1 more source

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

Effects of Direct Torque Control Switching Strategies on Common Voltage and Bearing Current [PDF]

open access: yesJournal of Intelligent Procedures in Electrical Technology, 2012
Bearing current sininduction motorsare considered a sone of the most damaging factors. Induced shaft voltage through the parasitic capacitors cause this type of current.
Mohammad Taghi Sadeghzadeh   +3 more
doaj  

Enhancing Bearing Fault Diagnosis in Induction Motors: A Novel Approach Leveraging Synchronized Deviation of Instantaneous Frequency of Voltage and Current [PDF]

open access: yesAUT Journal of Electrical Engineering
Current-based methods for bearing fault diagnosis primarily rely on analyzing the current signal, leading to challenges in detecting fault frequencies due to their low magnitude amid the noise in the current spectrum.
Somaye Nazari, Jamal Moshtagh
doaj   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

An experimental attempt at measurement of bearing load in deep groove ball bearing with eddy current method

open access: yesNihon Kikai Gakkai ronbunshu, 2019
Eddy current method which is uninfluenced by oil film rupture or viscosity change was employed as a simple in-situ estimation method of bearing load acting on deep groove ball bearing operating under low rotational speed.
Akitoshi TAKEUCHI
doaj   +1 more source

Emulating bearing faults : a novel approach [PDF]

open access: yes, 2016
The relation between evolving mechanical faults in rotating electrical machines and their reflection in the machines’ electrical parameters still requires a lot of research. This implies serious obstructions in the evolution of e.g.
Corne, Bram, Desmet, Jan, Knockaert, Jos
core   +2 more sources

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