Results 61 to 70 of about 12,604 (312)

High-Efficiency Resonant DC-DC Converter With Low Input Current Ripple for DC Power Distribution Systems

IEEE Access
A novel resonant dc-dc converter with high efficiency and low input current ripple is presented. Without adding any components, the proposed converter significantly improves the efficiency of the conventional half-bridge converter that has input current ...
Ki-Mok Kim
doaj   +1 more source

Implementation of a Parallel-Series Resonant Converter with Wide Input Voltage Range

Energies, 2019
A new resonant converter is presented to have the advantages of soft switching operation on power devices, without reverse recovery current loss on power diodes and wide input voltage range operation.
Bor-Ren Lin
doaj   +1 more source

CX3CL1 in Early Detection of Alzheimer's Disease: Plasma Dynamics Across Age and Disease Stages

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Backgrounds Alzheimer's disease (AD) is characterized by amyloid‐beta plaques, tau tangles, and neuroinflammation. C‐X3‐C motif chemokine ligand 1 (CX3CL1, also known as fractalkine), a neuroimmune chemokine implicated in AD pathogenesis, shows inconsistent alterations in plasma/serum across studies.
Ling Wang, Yujie Liu, Fei Li, Xuelin Li, Lanlan Li, Jie Zhang, Yali Xu   +6 more
wiley   +1 more source

Pseudo-Partial-Power Switch-Multiplexed Resonant Converter with Wide Voltage Gain

Energies
Full-bridge resonant converters have gained widespread adoption due to their excellent performance characteristics. However, these converters face limitations in terms of gain expansion.
Xiaoying Chen, Zehong Yao, Yizhan Zhuang, Yiming Zhang   +3 more
doaj   +1 more source

A Structure-Reconfigurable Soft-Switching DC-DC Converter for Wide-Range Applications

Energies, 2019
In this paper, a structure-reconfigurable resonant DC-DC (direct current − direct current) converter is presented. By controlling the state of the auxiliary switch, the converter could change the resonant structure to acquire a high efficiency and ...
Xianxu Huo, Ke Xu, Ruixin Liu, Xi Chen, Zhanchun Li, Haiyun Yan   +5 more
doaj   +1 more source

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende, Emilien Petit, Young Woo Park, Sophie Tezenas du Montcel, James M. Joers, Jonathan M. DuBois, H. Moore Arnold, Michal Povazan, Ipek Özdemir, Guita Banan, Romain Valabregue, Philipp Ehses, Jennifer Faber, Chiadi U. Onyike, Peter B. Barker, Jeremy D. Schmahmann, Eva‐Maria Ratai, Sub H. Subramony, Thomas H. Mareci, Khalaf O. Bushara, Henry Paulson, Thomas Klockgether, Alexandra Durr, Tetsuo Ashizawa, Christophe Lenglet, Gülin Öz, READISCA Investigators   +26 more
wiley   +1 more source

A Prospective Study of Individuals at Risk of Multiple Sclerosis Informs the Design of Primary Prevention Studies

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective In multiple sclerosis, the optimal time for deploying a therapeutic intervention is before the central nervous system is damaged; given the success of trials treating the earliest stage of MS, the radiologically isolated syndrome, developing primary prevention strategies is an important next challenge.
Amy W. Laitinen, Ceren Tozlu, Tina Roostaei, Fatoumata Diallo, Kaho Onomichi, Jiyeon Son, Zongqi Xia, Philip L. De Jager   +7 more
wiley   +1 more source

Modelagem dos conversores CC-CC PWM e ressonantes para a analise dinamica sob perturbações de pequenas e grandes amplitudes [PDF]

, 1992
Tese (doutorado) - Universidade Federal de Santa Catarina. Centro TecnologicoNeste trabalho foram desenvolvidosos modelos CC e CA dos conversoresCC-CC submetidos a pequenas perturbações, adequadas ao projeto dos compensadores em malha fechada.
Freitas, Luiz Carlos de
core  

Analysis of two section resonant voltage converter for matrix led light source drivers [PDF]

, 2021
Analysis of two-section resonant DC-to-DC converter with phase power control, which is the basis of the matrix LED light source driver is carried out.
Frivaldsky, Michal, Chomko, Taras, Lupenko, Anatolii, Sysak, Ivan   +3 more
core  

Resonant Power Converters

, 2019
في الآونة الأخيرة، تلقت محولات الرنين DC/DC الكثير من الاهتمام البحثي نتيجة للتقدم في تطبيقاتها. وقد أدت هذه الزيادة في تطبيقاتها الصناعية إلى بذل المزيد من الجهود في تعزيز التبديل الناعم، والأشكال الموجية السلسة، وكثافة الطاقة العالية، والميزات عالية الكفاءة للمحولات الرنانة.
Mohammed Salem, Khalid Yahya
openaire   +2 more sources