Results 41 to 50 of about 89,369 (307)
Optimal passive filter design for effective utilization of cables and transformers under non-sinusoidal conditions [PDF]
, 2014 Transformers and cables have overheating and reduced loading capabilities under non-sinusoidal conditions due to the fact that their losses increases with not only rms value but also frequency of the load current.
Aleem, SHEA +3 more
core +1 more source
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Grid integration and a power quality assessment of a wave-energy park
IET Smart Grid, 2019 This study presents a step toward the grid connection of a wave-energy park through an electric power conversion system (EPCS) developed and installed for the wave-energy harvesting in Lysekil, Sweden.
Arvind Parwal +10 more
doaj +1 more source
Hexapole magnet field analysis [PDF]
, 1972 Method rotates magnet about a wire loop of rectangular shape placed inside the pole tips and measures induced loop voltage with a wave analyzer. Quantitative field characteristics are determined from voltage induced at various harmonics of the rotation ...
Lacey, R. F.
core +1 more source
Digital Current-Control Schemes [PDF]
, 2009 The paper is about comparing the performance of digital signal processor-based current controllers for three-phase active power filters. The wide use of nonlinear loads, such as front-end rectifiers connected to the power distribution systems for dc ...
Bojoi, Iustin Radu +3 more
core +1 more source
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
A High Quality Output Voltage for HEPWM of Single Phase AC Motor Drive [PDF]
Engineering and Technology Journal, 2009 provide the exact on-line solution to the optimal PWM problem. The proposedalgorithm optimization technique is applied to a 3-level unipolar single-phase inverter todetermine optimum switching angles for eliminating low order harmonics while ...
Jamal A. Mohammed +2 more
doaj +1 more source
Molecular Oncology, EarlyView.Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff +11 more
wiley +1 more source
Energies, 2021 In this paper the results of the tests of the wideband transformation accuracy of medium voltage (MV) inductive voltage transformers (VTs) in the frequencies range from 50 Hz up to 5 kHz are presented.
Michal Kaczmarek, Ernest Stano
doaj +1 more source
, 2001 The generation of harmonics of the voltage response is considered when an AC current is applied through a superconducting film above T_c. It is shown that almost at all temperatures the mechanism of the temperature oscillations created by the AC current ...
Chéenne, Nicolas +3 more
core +1 more source