Results 61 to 70 of about 2,992,959 (303)

LIFETIME OF AUXILIARY MACHINES OF AC ELECTRIC TRAINS

open access: yesNauka ta progres transportu, 2015
Purpose. In this paper it is necessary to analyze increase the efficiency of auxiliary machinesof AC electric trains, series ER 9M during operating under the real conditions. Methodology.
O. Yu. Baliichuk
doaj   +1 more source

Neuromorphic Devices and Computing for Sensing, Memory, and Control

open access: yesAdvanced Science, EarlyView.
This review introduces neuromorphic devices made from diverse materials. These devices mimic neuronal functions and architectures and, when integrated with artificial or biological computing, can form closed loops with neurons for pressure, optical, acoustic, and biochemical sensing and modulation.
Zhengguang Zhu   +2 more
wiley   +1 more source

FastCat: Autonomous Discovery of Multielement Layered Double Hydroxide Alloy Catalysts for Alkaline Oxygen Evolution Reaction

open access: yesAdvanced Intelligent Discovery, EarlyView.
A machine learning‐guided self‐driving laboratory screened over 500 nickel‐based layered double‐hydroxide catalysts for alkaline oxygen evolution. Out of the eight metals, the robot uncovered a quaternary Ni–Fe–Cr–Co catalysts requiring only 231 mV overpotential to reach 20 mA cm−2.
Nis Fisker‐Bødker   +3 more
wiley   +1 more source

ZONES OF STEADY CAPACITOR EXCITATION IN A MODE OF GENERATION OF TYPICAL ASYNCHRONOUS MACHINES

open access: yesProblems of the Regional Energetics, 2009
In work some features of a mode of capacitor excitation of industrial asynchronous electric motors, and also generators made on their base which can be used in wind installations of low power are considered.
Postoronca Sv.   +4 more
doaj  

Iron loss calculation model of high‐voltage multi‐pole asynchronous motors considering high harmonic flux density

open access: yesIET Electric Power Applications
A variable coefficient segmented iron loss calculation model is proposed for high‐voltage multi‐pole asynchronous motors, which fully considers the influence of high‐order harmonic magnetic density on such motors.
Shiyong Xiao   +3 more
doaj   +1 more source

HARMONIC ANALYSIS OF MAGNETOMOTIVE FORCE IN THE AIR GAP OF SIX-PHASE ASYNCHRONOUS MACHINES

open access: yesJournal of Engineering Science (Chişinău)
Asynchronous motors with six and more phases (usually n-three-phase) are increasingly accepted in electric drive systems of road transport, marine and even aeronautical transport.
TODOS, Petru   +2 more
doaj   +1 more source

Autonomous X‐Ray Fluorescence Mapping for Nanoscale Chemical Speciation of Fine Particulate Matter

open access: yesAdvanced Intelligent Discovery, EarlyView.
We present X‐AutoMap, an autonomous X‐ray fluorescence mapping framework that integrates real‐time analysis with rule‐based computer vision to selectively target chemically relevant regions. By avoiding background‐dominated areas, the method reduces acquisition time by fourfold while enabling accurate particle‐level speciation.
Carlos Deleon   +3 more
wiley   +1 more source

FEM approach for diagnosis of induction machines' non-adjacent broken rotor bars by short-time Fourier transform spectrogram

open access: yesThe Journal of Engineering, 2019
Rotor electrical faults are an issue frequently encountered when applying condition monitoring and fault diagnosis on induction machines. The detection via the analysis of the stator current becomes challenging when the rotor cage suffers from multiple ...
Panagiotis A. Panagiotou   +5 more
doaj   +1 more source

Small‐Scale Magnetic Peristaltic Soft Robot With Mobility and Transport Capabilities

open access: yesAdvanced Intelligent Systems, EarlyView.
This study introduces a miniature, untethered soft magnetic microrobot with peristaltic capabilities for both locomotion and cargo transport. Eight helically magnetized elastomeric strips deform under rotating fields (10–80 mT, 1–5 Hz), enabling movement across rods and lumina at up to 4.1 body lengths min‐¹.
Mohammad Hasan Dad Ansari   +4 more
wiley   +1 more source

TESTING OF ELECTRIC MACHINES IN INDUSTRIAL ENVIRONMENT USING A DATA ACQUISITION AND PROCESSING SYSTEM [PDF]

open access: yesAnnals: Series on engineering sciences (Academy of Romanian Scientists), 2009
The paper presents some significant aspects concerning testing electrical machines, including high power ones, using a Data Acquisition and Processing System (DAPS), based on a PC compatible microsystem.
Toma DORDEA   +7 more
doaj  

Home - About - Disclaimer - Privacy