Results 11 to 20 of about 59,552 (266)

Development of Novel Semi-Stranded Windings for High Speed Electrical Machines Enabled by Additive Manufacturing

open access: yesApplied Sciences, 2023
Recent advances in electrical machines and energy storage technologies make electric vehicles (EVs) feasible replacements to conventional internal combustion engines.
Ahmed Selema   +2 more
doaj   +1 more source

Large-scale prediction of activity cliffs using machine and deep learning methods of increasing complexity

open access: yesJournal of Cheminformatics, 2023
Activity cliffs (AC) are formed by pairs of structural analogues that are active against the same target but have a large difference in potency. While much of our knowledge about ACs has originated from the analysis and comparison of compounds and ...
Shunsuke Tamura   +2 more
doaj   +1 more source

Simulation of AC Variable Frequency Asynchronous Electric Dynamometer System

open access: yesChemical Engineering Transactions, 2017
An AC asynchronous electric dynamometer system based on a motorcycle engine test bench to better determine the performance of the machine is studied in this paper. The constitution and control strategy of the dynamometer system are discussed.
Xiaoming Wang
doaj   +1 more source

Data-driven alternating current optimal power flow: A Lagrange multiplier based approach

open access: yesEnergy Reports, 2022
This paper proposes a data-driven Alternating Current Optimal Power Flow (AC-OPF) method assisted by Lagrange multipliers. Stacked Extreme Learning Machine (SELM) is introduced for AC-OPF learning to avoid the time-consuming training and hyperparameter ...
Xingyu Lei   +3 more
doaj   +1 more source

AC/DC current ratio in a current superimposition variable flux reluctance machine

open access: yesOpen Physics, 2018
We have proposed a current superimposition variable flux reluctance machine for traction motors. The torque-speed characteristics of this machine can be controlled by increasing or decreasing the DC current.
Kohara Akira   +3 more
doaj   +1 more source

Real-Time Accumulative Computation Motion Detectors

open access: yesSensors, 2009
The neurally inspired accumulative computation (AC) method and its application to motion detection have been introduced in the past years. This paper revisits the fact that many researchers have explored the relationship between neural networks and ...
Saturnino Maldonado-Bascón   +3 more
doaj   +1 more source

AUTOMATIC CLASSIFICATION OF EFL LEARNERS’ SELF-REPORTED TEXT DOCUMENTS ALONG AN AFFECTIVE CONTINUUM

open access: yesNovìtnâ Osvìta, 2022
This study aims to place EFL learners along an affective continuum via machine learning methods and present a new dataset about affective characteristics of EFL learners.
Derya Uysal, Alper Kürşat Uysal
doaj   +1 more source

Equilibrium mechanism between dc voltage and ac frequency for ac–dc interlinking converters

open access: yesiEnergy, 2022
The equilibrium between dc bus voltage and ac bus frequency (Udc-f equilibrium) is the algorithm core of unified control strategies for ac-dc interlinking converters (ILCs), because the equilibrium implements certain mechanism.
Haixu Shi   +4 more
doaj   +1 more source

Utility and Application of a Versatile Analytical Method for MMF Calculation in AC Machines

open access: yesCES Transactions on Electrical Machines and Systems
A versatile analytical method (VAM) for calculating the harmonic components of the magneto-motive force (MMF) generated by diverse armature windings in AC machines has been proposed, and the versatility of this method has been established in early ...
Ze-Zheng Wu   +2 more
doaj   +1 more source

Medium Frequency Diode Rectifier Unit Based HVDC Transmission for Offshore Wind Farm Integration

open access: yesZhongguo dianli, 2020
The offshore wind farms are the main trend of the wind power development in the future. Till now, the commissioned far offshore wind farms are always connected to the onshore AC system by VSC-HVDC systems. The hybrid HVDC topology with uncontrolled diode
Zheren ZHANG, Yingjie TANG, Zheng XU
doaj   +1 more source

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