Results 71 to 80 of about 426,522 (226)

High step-up interleaved boost converter utilising stacked half-bridge rectifier configuration

open access: yesThe Journal of Engineering, 2019
This paper proposes a solution to complement the insufficient voltage gain and voltage stress distribution of classical interleaved boost converter in high step-up application.
Musbahu Muhammad   +3 more
doaj   +1 more source

The Potential for Absolute Temperature Imaging Based on Brain Metabolites Using an FID‐Shifting Approach in Gradient Echo Planar Spectroscopic Imaging (GREPSI)

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 5, Page 2044-2057, November 2026.
ABSTRACT Purpose To implement and evaluate an efficient method for absolute temperature measurement using a gradient echo implementation of the echo planar spectroscopic imaging (EPSI) sequence. Methods The gradient echo EPSI sequence (GREPSI) utilizes an oscillating readout gradient together with continuous signal readout after slab selective ...
Dennis L. Parker   +5 more
wiley   +1 more source

Conversores CC-CA multiníveis com célula de acoplamento indutivo [PDF]

open access: yes, 2011
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2011Este trabalho apresenta dois novos conversores empregando a célula de acoplamento indutivo de 4 estados.
Hausmann, Romeu
core  

Generative MR Multitasking With Complex‐Harmonic Cardiac Encoding: Bridging the Gap Between Gated Imaging and Real‐Time Imaging

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 5, Page 2440-2450, November 2026.
ABSTRACT Purpose To develop a unified image reconstruction framework that bridges real‐time and gated cardiac MRI, including quantitative MRI. Methods We introduce generative multitasking, which learns subject‐ and dataset‐specific implicit neural temporal bases from sequence timings and an interpretable latent space for cardiac and respiratory motion.
Xinguo Fang, Anthony G. Christodoulou
wiley   +1 more source

Blind Estimation Versus Direct Measurement of the Arterial Input Function in Dynamic Contrast‐Enhanced MRI of the Breast

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 4, Page 1947-1955, October 2026.
PurposeAccurate arterial input functions (AIFs) are essential for quantitative dynamic contrast‐enhanced (DCE) MRI, yet direct measurement is challenging and population‐averaged AIFs neglect patient‐specific variability. Blind deconvolution provides an alternative by estimating patient‐specific AIFs directly from tissue data, up to a scale factor. This
Jake L. Cray   +4 more
wiley   +1 more source

An Integral Battery Charger with Power Factor Correction for Electric Scooter [PDF]

open access: yes, 2009
This paper presents an integral battery charger for an electric scooter with high voltage batteries and interior-permanent-magnet motor traction drive.
E. Armando   +9 more
core   +2 more sources

Fractional-Order Modeling and Ripple Characteristic Analysis of a CCM Interleaved Parallel Buck–Boost Converter

open access: yesFractal and Fractional
The interleaved parallel Buck–Boost converter can reduce output voltage ripple and has been widely used in engineering practice. The application of fractional-order theory has a significant influence on model accuracy and power converter performance ...
Yuanyuan Zhang   +3 more
doaj   +1 more source

MXene‐Powered Batteries: Advances and Challenges

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 9, September 2026.
This review provides a comprehensive overview of MXene‐based materials for electrochemical energy storage, covering surface termination engineering, doping, and composite design strategies. The roles of MXenes in sodium‐ion, lithium‐sulfur, zinc‐air, lithium‐oxygen, and redox‐flow batteries are critically discussed, with emphasis on mechanisms ...
Gwibakazi A. Feleni   +6 more
wiley   +1 more source

Research on parallel interleaved DC/DC converter applied to mine electric locomotive

open access: yesGong-kuang zidonghua, 2019
In view of problems of low conversion efficiency, easy damage of switching devices and inapplicable to super capacitors of non-isolated converters currently used in mine electric locomotive, a parallel interleaved DC/DC converter applied to mine electric
ZHU Longji, WU Zhonglan, ZHENG Changlu
doaj   +1 more source

Bio‐Inspired Robust Non‐combustible Bioplastic with Superinsulated Energy Harvesting for Intelligent Firefighting

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 5, September 2026.
This study develops a novel non‐combustible chitosan‐based bioplastic (NCCB) via ethanol‐induced surface assembly. The material's inherent flame retardancy and thermally insulating, rough surface enable high‐performance TENGs. The NCCB‐TENG maintains stable output even when exposed to fire and exhibits dual sensitivity to temperature (25–200°C) and ...
Qilin Lu   +5 more
wiley   +1 more source

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