Results 51 to 60 of about 19,374 (297)
Determination of the rational shift value the center of the magnetic system electromagnetic bearing
The article sets the task of determining the rational value of the displacement of the center of the magnetic system of an electromagnetic bearing relative to the axis of rotation, at which, with equal currents in opposite electromagnets, the weight ...
Alexander V. Starikov +1 more
doaj +1 more source
Methodology to measure electric discharge machining (EDM) bearing currents in induction motors with supply from a variable speed drive (VSD) [PDF]
En este artículo se establece una metodología para la medición de corrientes de rodamiento del tipo “Electric Discharge Machining (EDM)” en motores de inducción alimentados por variador de velocidad (VSD- Drive). Este artículo hace una introducción a los
Quintero Sarmiento, David Raúl +2 more
core
Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil +4 more
wiley +1 more source
The magnetic saturation of iron‐core will reduce the maximum output force, influence the linear force characteristic and control precision of the magnetic bearing.
Shilei Xu, Jinji Sun, Zhipeng Wang
doaj +1 more source
An Overview on Electrodynamic Bearings
In electrodynamics, the levitation ensues when there is a relative motion between a stator and a conductor owing to which high eddy currents are induced.
Supreeth D. K. +2 more
doaj +1 more source
Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara +3 more
wiley +1 more source
The electrification of mobility sectors, including automotive, aerospace, and robotics, has accelerated the need for compact and high-efficiency power converters in electric motor drives. Wide-bandgap (WBG) semiconductor–based inverters offer significant
Mustafa Memon, Mohamed Diab
doaj +1 more source
Influence of static rotor unbalance on inverter-induced bearing currents
The influence of static rotor imbalance on the generation of bearing fluting due to bearing currents is experimentally investigated. For that six inverter-fed induction machines with the rated power of 1.5 kW and three with the rated power of 11 kW were ...
Safdarzadeh, Omid +2 more
core
High frequency bearing currents are a parasitic phenomenon that affects inverter-fed induction machines, causing damage and wear to the mechanical bearings, which might lead to unexpected failures, increase of the machine downtime and reduction of its ...
Weicker, Martin, Binder, Andreas
core +1 more source

