Results 41 to 50 of about 1,146 (178)
Techne, 2020 Dengan perkembangan konverter elektronika daya, kebutuhan untuk memperkecil ukuran dan keandalan semakin meningkat. Dengan meningkatnya frekuensi switching pada konverter, maka dv/dt yang tinggi dapat menyebabkan kesalahan dalam turn-on ataupun turn-off ...
Novie Ayub Windarko +5 more
doaj +1 more source
Highly Reproducible, Vendor‐Agnostic, Motion‐Insensitive Liver PDFF Mapping at 0.55T, 1.5T, and 3T
Magnetic Resonance in Medicine, Volume 95, Issue 5, Page 2797-2813, May 2026.ABSTRACT Purpose To develop and validate a vendor‐agnostic, motion‐insensitive proton‐density fat‐fraction (PDFF) quantification method. Methods Flip‐angle‐modulated (FAM) 2D chemical‐shift‐encoded (CSE) MRI for PDFF quantification was implemented in both the vendor‐agnostic platform Pulseq (“Pulseq‐FAM”) and one vendor‐specific platform (“GE‐specific ...
Jiayi Tang +27 more
wiley +1 more source
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
International Transactions on Electrical Energy Systems, 2022 This paper presents a newly designed modified multiport interleaved flyback converter (MMPIFC) to transfer the photovoltaic (PV) power to the DC bus of the parallel-connected multilevel inverter-based shunt active power filter (SHAPF).
Radhamani Rajakkannu +1 more
doaj +1 more source
Laser &Photonics Reviews, Volume 20, Issue 5, 6 March 2026.In this work, we investigated the dynamic retinal pathology of glaucoma from onset to late stages through longitudinal in vivo high‐resolution imaging in a silicone oil‐induced ocular hypertension (SOHU) glaucoma mouse model. We developed an optimized adaptive optics two‐photon excitation fluorescence microscopy (AO‐TPEFM) technique for morphological ...
Yiming Fu +6 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
Aerospace, 2023 Pulsed plasma thrusters (PPT) have demonstrated enormous potential since the 1960s. One major shortcoming is their low thrust efficiency, typically
Dillon O’Reilly +6 more
doaj +1 more source
Pharmacokinetic modeling strategies for dynamic hyperpolarized urea imaging
Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1671-1683, March 2026.Abstract Purpose To evaluate pharmacokinetic modeling methods for quantification of tissue perfusion/permeability with hyperpolarized 13C urea. Methods Three models for quantitative analysis of dynamic HP urea imaging data were proposed and evaluated in numerical simulations and a thyroid cancer mouse model.
Keith A. Michel +6 more
wiley +1 more source
Single‐source multilevel inverter based on flyback DC‐DC converter
IET Power Electronics, 2021 A new multilevel inverter based on flyback converter is presented in this paper. By employing the DC‐DC flyback converter the voltage of DC‐link capacitors is adjusted.
Milad Ghavipanjeh Marangalu +2 more
doaj +1 more source
Optimized motion‐insensitive PDFF mapping of the liver
Magnetic Resonance in Medicine, Volume 95, Issue 1, Page 249-267, January 2026.Abstract Purpose To implement, optimize, and validate parallel imaging (PI)‐accelerated, 2D, flip angle modulated (FAM) chemical shift‐encoded quantification of liver proton‐density fat fraction (PDFF), with motion insensitivity. Methods The optimization cost function that determines flip angles in FAM was generalized for PI.
Jiayi Tang +12 more
wiley +1 more source