Results 111 to 120 of about 31,027 (310)

Mathematical model of the LLC resonant converter

Proceedings of Tomsk State University of Control Systems and Radioelectronics, 2020
The numerical-analytical model of the voltage regulator based on full-bridge LLC resonant converter is proposed in this paper. In the text of the article LLC converters operation algorithm on each working interval is investigated. The proposed mathematical model describes key elements behavior on duty cycle and allows the study of nonlinear dynamic ...
A. A. Stolyarova, S. G. Mikhalcenko, V. I. Apasov   +2 more
openaire   +1 more source

Multi‐Frequency Electrocochleography Results in Fewer Drop Alarms During Cochlear Implant Insertion

The Laryngoscope, EarlyView.
A novel multi‐frequency electrocochleography (ECochG) algorithm used during cochlear implant electrode insertion is associated with fewer drop alarms and an increase in optimal insertion track patterns. Multi‐frequency ECochG may provide a more accurate assessment of the cochlear microenvironment when compared to single‐frequency ECochG.
Mana Espahbodi, Ali Syed, Alex Tu, Michael D. Seidman, Christopher J. Danner, Kyle P. Allen, Loren J. Bartels, Syed F. Ahsan, Courtney C.J. Voelker, Nicholas L. Deep, Jacob B. Hunter, Rebecca C. Chiffer, Elias M. Michaelides, Mohamed Elrakhawy, Matthew W. Miller, Harrison W. Lin, Hamid R. Djalilian, Esther X. Vivas, Simon I. Angeli, Michael Hoa, H. Jeffrey Kim, Mark H. Widick, Katrina R. Stidham, Neil S. Patel, Richard K. Gurgel, Karl W. Doerfer, Kanthaiah Koka, Michael S. Harris   +27 more
wiley   +1 more source

A high-efficiency primary-side regulation control strategy for half-bridge LLC resonant converter with wide input voltage range. [PDF]

Sci Rep, 2023
Dai M, Sun D, Wei X, Cong L, Wang C.
europepmc   +1 more source

In Vivo Mapping of Catecholaminergic Loss and Iron Deposition in Huntington's Disease

Movement Disorders, EarlyView.
Abstract Background The pathophysiology of Huntington's disease (HD) remains obscure. Magnetic resonance imaging (MRI) can reveal in vivo molecular changes related to disease pathology. Objectives To investigate catecholaminergic neuronal integrity and subcortical brain iron accumulation in HD employing neuromelanin‐sensitive MRI, and quantitative ...
Edoardo R. de Natale, Heather Wilson, Efstratios Karavasilis, Athanasia Liozidou, Chrisoula Kartanou, Georgios Velonakis, Jens Kuhle, Ioannis Zalonis, Georgia Karadima, Leonidas Stefanis, Georgios Koutsis, Marios Politis   +11 more
wiley   +1 more source

Digital Control Implementation to Reduce the Cost and Improve the Performance of the Control Stage of an Industrial Switched-Mode Power Supply [PDF]

, 2011
The main objective of this work is the design and implementation of the digital control stage of a 280W AC/DC industrial power supply in a single low-cost microcontroller to replace the analog control stage.
Alou Cervera, Pedro, Canales, F., Castro Martín, Ángel de, Cobos Márquez, José Antonio, Duret, Benoit Alexandre, Díaz López, Daniel, García Suárez, Oscar, Moreno González, Félix Antonio, Oliver Ramírez, Jesús Angel   +8 more
core  

Aberrant Beta‐Band Network Alteration Preceding Freezing of Gait in Parkinson's Disease

Movement Disorders, EarlyView.
Abstract Background Freezing of gait (FOG) is a debilitating motor symptom observed in the advanced stages of Parkinson's disease (PD), characterized by an abrupt inability to initiate or continue forward walking. Whole‐brain functional connectivity analysis has shown promise in elucidating the underlying pathophysiology and identifying potential ...
Yanqiu Tian, Elie Matar, Shlomo Berkovsky, Simon J.G. Lewis   +3 more
wiley   +1 more source

Differential Progression of Neuroinflammation in Patients with Isolated Rapid‐Eye‐Movement Sleep Behavior Disorder

Movement Disorders, EarlyView.
Abstract Background Neuroinflammation, measured using [11C](R)‐PK11195 positron emission tomography (PET), has been reported in isolated rapid‐eye‐movement sleep behavior disorder (iRBD), but its temporal progression is unknown. Objective The aim was to assess longitudinal progression of neuroinflammation in iRBD patients and its relationship with ...
Andreas Myhre Baun, Alex Iranzo, Miriam Højholt Terkelsen, Rainer Hinz, Morten Gersel Stokholm, Kristian Stær, Mónica Serradel, Marit Otto, Kristina Bacher Svendsen, Alicia Garrido, Dolores Vilas, Arne Møller, Carles Gaig, Eduardo Tolosa, David J. Brooks, Per Borghammer, Simon Fristed Eskildsen, Nicola Pavese   +17 more
wiley   +1 more source

Temporal Dynamics of Parkinson's Disease Tremor: Clinical and Neuroimaging Insights

Movement Disorders, EarlyView.
Abstract Background Parkinson's disease (PD) is a progressive neurodegenerative disorder clinically defined by three cardinal motor symptoms: bradykinesia, rigidity, and tremor. Although the natural history of bradykinesia and rigidity is well described, the evolution of tremor as the disease progresses remains controversial. Objectives The goal was to
Melanie Suette, Robert Matic, Marisa Koini, Lukas Gattermeyer‐Kell, Daniela Kern, Petra Katschnig‐Winter, Mariella Koegl, Maximilian Sackl, Christian Tinauer, Birgit Helmlinger, Manuel Leitner, Stefan Ropele, Daniela Pinter, Christian Enzinger, Stephan Seiler, Petra Schwingenschuh   +15 more
wiley   +1 more source

Application-Oriented Review of the LLC-Based Resonant Converters

IEEE Access
The LLC resonant converter is a widely utilized power electronics converter, due to its numerous industrial and domestic applications. This converter offers some advantages such as soft-switching operation of all switches, high efficiency, high power ...
Jasem Shahsevani, Reza Beiranvand
doaj   +1 more source

Early and Progressive Spinal Cord Atrophy in Spinocerebellar Ataxia Type 1

Movement Disorders, EarlyView.
Abstract Background Spinocerebellar ataxia type 1 (SCA1) is a rare, autosomal dominant neurodegenerative disorder characterized by progressive cerebellar and brainstem degeneration. Previous studies have shown that spinal cord atrophy is also a key aspect of SCA1 neuropathology.
Colette J.M. Reniers, Teije H. van Prooije, Kirsten C.J. Kapteijns, Jack J.A. van Asten, Caterina Mariotti, Lidia Sarro, Anna Nigri, Marina Grisoli, Giulia Coarelli, Alexandra Durr, Tom Scheenen, Bart van de Warrenburg   +11 more
wiley   +1 more source