Results 51 to 60 of about 6,999 (231)
Multiband monopole antenna for mobile applications [PDF]
, 2019 — In this paper, a multiband monopole antenna has been proposed for mobile applications. The monopole antenna has simple structure with a physical size of 15 cm × 7 cm.
Abidin, Z.Z. +6 more
core +1 more source
Advanced Materials Interfaces, Volume 13, Issue 6, 16 March 2026.This study presents an experimental Proof‐of‐Concept of an electrified CO2${\rm CO}_2$ loop that combines DAC and GA‐plasma conversion. Atmospheric CO2${\rm CO}_2$ is captured and solidified as CaCO3${\rm CaCO}_3$, followed by plasma‐based calcination to regenerate CaO and with the possibility to split CO2${\rm CO}_2$ into CO for syngas synthesis. This
Valentin Benedikt Seithümmer +5 more
wiley +1 more source
IET Electric Power Applications, Volume 20, Issue 1, January/December 2026.In this paper, the LC low‐pass filter is designed and connected in parallel with the DC winding of the MFMWF machine to suppress the high‐frequency sideband harmonics in the DC winding current for the first time. The suppression effect is validated by experiments.
Zhimian Wang +5 more
wiley +1 more source
IEEE Access, 2023 Permanent magnet (PM) machines have broad applicability and a rapid output rise due to their good power factor, high efficiency, and power density. However, with the recent high cost, unavailability, and demagnetization issues of PMs, the wound rotor ...
Sheeraz Ahmed +5 more
doaj +1 more source
Motor/generator and electronic control considerations for energy storage flywheels [PDF]
, 1984 A spacecraft electric power supply system is described. Requirements of the system are to accelerate a momentum wheel to a fixed maximum speed when solar energy is available and to maintain a constant voltage on the spacecraft bus under varying loads ...
Nola, F. J.
core +1 more source
Analytical and numerical computation of air-gap magnetic fields in brushless motors with surface permanent magnets [PDF]
, 2000 This paper extends the theory of the air-gap magnetic field in permanent-magnet (PM) brushless motors. Scalar and vector potential solutions to the field equations are brought together to unify many of the important practical methods already in use.
Davies, J.H. +4 more
core +1 more source
IET Power Electronics, Volume 19, Issue 1, January/December 2026.This paper investigates the application of Finite Control Set Model Predictive Control (FCS‐MPC) for Brushless DC (BLDC) motor speed regulation under dynamic references, including sinusoidal, square, triangular, and sawtooth signals. A novel cost function is introduced to evaluate switching frequency effects, and the influence of different weighting ...
Ahmad Entezari +2 more
wiley +1 more source
The use of cement leftovers from the hollow of spun piles as an additive in self-compacting concrete [PDF]
, 2018 Spun piles have been used widely by developing countries, including Malaysia, to construct the foundation of most construction projects. A spun pile is a reinforced precast and prestressed concrete that is compacted in a mould through spinning compaction.
Adnan, Suraya Hani +4 more
core +1 more source
IET Power Electronics, Volume 19, Issue 1, January/December 2026.This paper proposes a modelling method based on multi‐software co‐simulation to precisely model radiated interference in permanent magnet servo drive systems. The accuracy of the simulation model is validated through comparison with actual measurement results. ABSTRACT High‐frequency switching operations of power switching tubes generate high‐frequency
Jingxuan He +7 more
wiley +1 more source
Design Optimization of the Magnet-Free Synchronous Homopolar Motor of a Subway Train
Applied Sciences, 2022 Synchronous homopolar motors have no permanent magnets and their excitation winding is fixed at their stator. However, they can be a good alternative to induction and permanent magnet motors in traction applications requiring a wide constant power speed ...
Vladimir Dmitrievskii +3 more
doaj +1 more source