Results 71 to 80 of about 11,331 (225)
Eletrônica de Potência, 2013 Este artigo apresenta uma família de reatores eletrônicos para alimentar uma lâmpada de vapor de sódio em alta pressão de 70W. O reator eletrônico consiste em um conversor de estágio único que integra um conversor de correção do fator de potência e ...
André L. Kirsten +5 more
doaj +1 more source
Piezoelectric wind power harnessing – an overview [PDF]
, 2011 As fossil energy resources deplete, wind energy gains ever more importance. Recently, piezoelectric energy harvesting methods are emerging with the advancements in piezoelectric materials and its storage elements.
Aksit, Mahmut Faruk +5 more
core
A method to analysis and design for long life power converter [PDF]
, 2010 Engineers are always looking for more reliable or longer life power converters. Electrolytic capacitor is the critical component to be considered. Using the powerful calculation tools like Mathcad and Matlab and allowable life model, this paper aims at ...
Pang, HM, Pong, BMH
core +1 more source
Quantitative Electron Beam‐Single Atom Interactions Enabled by Sub‐20‐pm Precision Targeting
Advanced Science, Volume 12, Issue 34, September 11, 2025.Atomic lock‐on (ALO) is a rapid, low‐dose in situ technique in scanning transmission electron microscopy (STEM) that achieves sub‐20 picometer (pm) beam positioning. A sparse annular scan collects positional information while avoiding irradiation of the target site.
Kevin M. Roccapriore +2 more
wiley +1 more source
Combined Forward-Flyback-Converter with Only Two Diodes - Function and Modelling
Communications, 2011 A combined forward and flyback converter with a simple two windings transformer, an inductor, an active switch, two diodes and a buffer capacitor is explained. The voltage transfer ratio and the demagnetizing condition are derived.
Felix A. Himmelstoss, Helmut L. Votzi
doaj +1 more source
Return-to-launch-site trajectory shaping [PDF]
The results are presented of a study to show the effect on flyback trajectories of constant inertial attitude during the fuel dissipation phase of a return-to-launch-site abort.
Bown, R. L.
core +1 more source
Short‐term gradient imperfections in high‐resolution EPI lead to Fuzzy Ripple artifacts
Magnetic Resonance in Medicine, Volume 94, Issue 2, Page 571-587, August 2025.Abstract Purpose High‐resolution fMRI is a rapidly growing research field focused on capturing functional signal changes across cortical layers. However, the data acquisition is limited by low spatial frequency EPI artifacts; termed here as Fuzzy Ripples.
Laurentius (Renzo) Huber +16 more
wiley +1 more source
A Review of Vertical Ga2O3 Diodes: From Fabrication to Performance Optimization and Future Outlooks
physica status solidi (b), Volume 262, Issue 8, August 2025.Gallium oxide (Ga2O3) diodes are emerging as promising components in power electronics, offering an ultrawide bandgap, high breakdown electric field, and cost‐effective growth methods. This article reviews recent advancements in Ga2O3 diodes, highlighting their fabrication techniques, performance in high‐voltage applications, and ongoing research ...
Jose Manuel Taboada Vasquez, Xiaohang Li
wiley +1 more source
Design of wide range DC input power module used in coal mine
Gong-kuang zidonghua, 2015 In view of problems that power supply voltage level and power type between mine-used sensors and DC power supply system is inconsistent, a design scheme of new type of wide range DC input and intrinsic safety type power module was put forward.
HU Yun +3 more
doaj +1 more source
Advanced Materials, Volume 37, Issue 26, July 3, 2025.Single‐layer magnetization switching with a small critical current density of ≈106 A cm−2 is demonstrated. The strong intrinsic spin Hall effect, causing the switching, is induced by the synergy of the inherent spin‐orbit coupling and the spontaneous oxygen octahedral rotation in SrRuO3.The findings highlight the immense potential for realizing ...
Hiroto Horiuchi +11 more
wiley +1 more source