Results 81 to 90 of about 108,858 (358)

Rotary electric device [PDF]

open access: yes, 1979
An electric motor is described with a low speed shaft that rotates at a speed much slower than the speed of a high speed shaft. It is comprised of a stator having a cylindrical bore with a longitudinal axis and a rotor that carries the low speed shaft ...
Madey, J. M.
core   +1 more source

Multiwavelength fiber laser in four mode fiber [PDF]

open access: yes, 2017
Multiwavelength fiber laser is a nonlinear phenomenon that has a great potential for optical communication system. A stable triple-wavelength fiber laser in four mode fiber had been demonstrated experimentally by employing Sagnac filter in a simple close ...
Awang, N.A., Jamaludin, J., Zakaria, Z.
core   +1 more source

Electric propeller drive based on a reactive electric machine for ice-class ships

open access: yesРоссийская Арктика
The article presents the results of theoretical and experimental studies of a propulsion electric drive based on reactive electric machines with anisotropic magnetic conductivity of the rotor of a wide power range from 1.5 kW to 1.7 MW.
F. A. Gelver   +3 more
doaj   +1 more source

Tactile Augmentation of Material Classification via Imperceptible On‐Skin Triboelectricity Collection

open access: yesAdvanced Science, EarlyView.
Human skin inherently forms a body‐coupled triboelectric circuit that enables the generation of triboelectric charges through contact between the skin surface and various materials. Integrated with an on‐finger, substrate‐free microfiber electrode, the material‐specific and personalized triboelectric signals can be imperceptibly collected for machine ...
Junting Huang   +7 more
wiley   +1 more source

Optimal segmented rotor design for the embedded electrical machine for the more electric aircraft

open access: yesThe Journal of Engineering, 2019
This study presents the design and analysis of the segmented rotor design for an electrical machine embedded onto the more electric aircraft gas turbine engine shaft. The high‐speed operational environment imposes high stress levels due to centrifugal forces; thus, the feasibility of this segmented rotor topology for such application is explored and a ...
Loh, Jenn Yen   +5 more
openaire   +5 more sources

Bacteroides Fragilis‐Derived Outer Membrane Vesicles Deliver MiR‐5119 and Alleviate Colitis by Targeting PD‐L1 to Inhibit GSDMD‐Mediated Neutrophil Extracellular Trap Formation

open access: yesAdvanced Science, EarlyView.
Bacteroides fragilis‐derived outer membrane vesicles deliver miR‐5119 and alleviate colitis by targeting PD‐L1 to inhibit GSDMD‐mediated neutrophil extracellular trap formation. Abstract Inflammatory bowel disease (IBD) results from a breakdown in the symbiotic relationship between the intestinal commensal microflora and the mucosal immune system.
Yi Yang   +11 more
wiley   +1 more source

Initial Rotor Position Detection for Brushless DC Motors Based on Coupling Injection of High-Frequency Signal

open access: yesIEEE Access, 2019
In applications where motor inversion is forbidden, it is important to detect the initial rotor position of the motor. For this reason, based on coupling injection of high-frequency signal, a novel method of initial rotor position detection for brushless
Wei Chen   +4 more
doaj   +1 more source

Numerical Analysis of the Power Balance of an Electrical Machine With Rotor Eccentricity

open access: yesIEEE Transactions on Magnetics, 2016
The power balance in the numerical simulation of a cage induction machine with eccentric rotor has been studied. The asymmetrical air-gap flux density distribution caused by the non-uniform air gap due to eccentricity produced forces that play an important role in the rotor dynamic stability.
Silwal, B.   +6 more
openaire   +5 more sources

Respiration Drives Dynamic Metal–Organic Framework for Smart Photoresponse to Volatile Toxic Vapors and Their Photodynamic Sterilization

open access: yesAdvanced Science, EarlyView.
The flexible AIEgen (H4TPPE) with obvious molecular rotor structure is used as a linker to connect with the octahedral Zr6O4(OH)8(H2O)4 cluster‐based SBU to obtain the first smart luminescent MOF (Zr‐TPE‐MOF) with dynamic respiration driven by toxic vapors.
Yun‐Lan Li   +6 more
wiley   +1 more source

Energy-efficient motors [PDF]

open access: yes, 2008
The use of a copper-squirrel cage in induction motors has been analyzed testing a prototype rated 1.1 kW and comparing the performances with a twin machine with an aluminum cage. The comparison has been made using torque, efficiency, starting torque, and
Boglietti, Aldo   +3 more
core   +1 more source

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