Results 81 to 90 of about 17,191 (210)
Self-consistent Mean Field theory in weakly ionized media [PDF]
, 2002 We present a self-consistent mean field theory of the dynamo in 3D and turbulent diffusion in 2D in weakly ionized gas. We find that in 3D, the backreaction does not alter the beta effect while it suppresses the alpha effect when the strength of a mean ...
Kim, Eun-Jin, Leprovost, Nicolas
core +5 more sources
Control of BLDC Motor Drive with Single Hall Sensor Considering Angle Compensation
Power Electronics and Drives, 2023 The traditional brushless DC motor uses three position sensors to realise six-step reversing control of the motor. The application of three position sensors increases the cost, whereas the sensorless control method represented by the back electromotive ...
Hong Sen, Luo Mingyang, Wang Xueqing
doaj +1 more source
On the effects of turbulence on a screw dynamo
, 2006 In an experiment in the Institute of Continuous Media Mechanics in Perm (Russia) an non--stationary screw dynamo is intended to be realized with a helical flow of liquid sodium in a torus.
Denisov SA +13 more
core +1 more source
Permanent-magnet brushless machines with unequal tooth widths and similar slot and pole numbers [PDF]
, 2005 This paper presents a comparative study of three-phase permanent-magnet brushless machines in which the slot and pole numbers are similar, with reference to conventional brushless dc machines in which the ratio of the slot number to pole number is ...
Howe, D., Ishak, D., Zhu, Z.Q.
core +1 more source
Electrician : Jurnal Rekayasa dan Teknologi Elektro, 2023 Abstract — Research on speed control of electric motors has developed, especially the BLDC motor. In previous research, the pulse width modulation (PWM) has been controlled using the voltage and duty cycle to control the motor speed. The PWM method is a method that is widely used in controlling BLDC motor speed.
Charles Ronald Harahap, Endah Komalasari
openaire +1 more source
Cation‐Driven Valence Change Mechanism in 2D AgCrS2 for Ultralow‐Power and Reliable Memristors
Advanced Science, Volume 13, Issue 18, 27 March 2026.A 2D AgCrS2 volatile memristor is shown to switch via a cation‐driven valence change mechanism, where Ag+ reversibly intercalates into tetrahedral vacancies between CrS2 layers to form a conductive Ag2CrS2 pathway without elemental Ag metallization. The device exhibits 0.2 V switching, nA‐compliance power down to 200 pW, and endurance beyond 3 × 105 ...
Yueqi Su +8 more
wiley +1 more source
Energies, 2017 A novel primary consequent-pole tubular transverse-flux flux-reversal linear machine (TTFFRLM) is proposed in this paper. The permanent magnets (PMs) of the machine are located on the inner surface of the short teeth of the primary iron cores for ...
Dingfeng Dong +5 more
doaj +1 more source
Magneto‐X Effects in Magnetic Soft Materials and Their Applications
Advanced Science, Volume 13, Issue 18, 27 March 2026.This review systematically explores magnetic soft materials (MSMs), a novel class of composites that transform under magnetic fields. It catalogs fundamental “Magneto‐X” effects, classifies materials by their matrix and magnetic fillers, and highlights transformative applications in soft robotics, biomedical devices, flexible electronics, etc. Finally,
Ziyin Xiang +5 more
wiley +1 more source
Full-Speed Range Encoderless Control for Salient-Pole PMSM with a Novel Full-Order SMO
Energies, 2018 For salient-pole permanent magnet synchronous motor (PMSM), the amplitude of extended back electromotive force (EEMF) is determined by rotor speed, stator current and its derivative value.
Yuanlin Wang +3 more
doaj +1 more source
Carbon Energy, Volume 8, Issue 3, March 2026.Under an alternating electric field, the lithiated halloysite nanotubes (HNTs–SO₃Li) self‐assemble into a perpendicular orientation, creating continuous pathways with low tortuosity that markedly enhance room‐temperature ionic conductivity. The shortened diffusion path within this alignment enables rapid Li⁺ transport, while the establishment of a ...
Sha Peng +7 more
wiley +1 more source