Results 81 to 90 of about 1,734,199 (244)

Performance of a straight stator and a tilted stator tested with a high-solidity high-pressure-ratio transonic rotor [PDF]

open access: yes
Overall stage and stator blade element performance with straight stator and tilted stator in transonic axial flow compressor ...
Cullom, R. R.   +2 more
core   +1 more source

Dynamic Model of Reluctance Step Motor

open access: yesAdvances in Electrical and Electronic Engineering, 2005
Reluctance step motors are the electromechanical componets to engineering applications stems from their low cost, reliability and controllability. Because torque depends only on the square of the applied stator currents and not on their direction, these ...
Pavel Zaskalicky
doaj  

Incompressible lifting-surface aerodynamics for a rotor-stator combination [PDF]

open access: yes
Current literature on the three dimensional flow through compressor cascades deals with a row of rotor blades in isolation. Since the distance between the rotor and stator is usually 10 to 20 percent of the blade chord, the aerodynamic interference ...
Ramachandra, S. M.
core   +1 more source

Research Progress of Enhanced Thermal Evacuation and Cooling Technology for High-Speed Motors

open access: yesApplied Sciences
In high-speed motors, there is a huge amount of heat generation from core and winding losses, which may result in thermal failures or motor performance deterioration.
Shaohang Yan   +4 more
doaj   +1 more source

Dielectric analysis of degraded stator bars of a hydro generator

open access: yesEnergy Reports, 2022
This paper presents the investigation of dielectric analysis of degraded stator bars by Polarization and Depolarization Current (PDC) measurement. The stator bars obtained from the 30-year in-service synchronous machine were divided into two groups.
Norasage Pattanadech   +4 more
doaj  

Flagellar stator genes control a trophic shift from obligate to facultative predation and biofilm formation in a bacterial predator

open access: yesmBio
The bacterial predator Bdellovibrio bacteriovorus is considered to be obligatorily prey (host)-dependent (H-D), and thus unable to form biofilms. However, spontaneous host-independent (H-I) variants grow axenically and can form robust biofilms.
Abhirup Mookherjee   +6 more
doaj   +1 more source

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