Results 81 to 90 of about 1,556,172 (342)

Review and Selection Strategy for High-Accuracy Modeling of PWM Converters in DCM

Journal of Electrical and Computer Engineering, 2018
Among various modeling methods for DC-DC converters introduced in the past two decades, the state-space averaging (SSA) and the circuit averaging (CA) are the most general and popular exhibiting high accuracy.
Yu-Jun Mao, Chi-Seng Lam, Sai-Weng Sin, Man-Chung Wong, Rui Paulo Martins   +4 more
doaj   +1 more source

The Association of Amyloid‐β and Tau With Synaptic Dysfunction in Alzheimer's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To clarify the relative contributions of amyloid and tau to synaptic dysfunction in Alzheimer's disease (AD). Methods We included 109 cognitively unimpaired and impaired individuals from the Geneva Memory Center with available CSF synaptic biomarkers (neurogranin, SNAP‐25, GAP‐43). Participants were stratified according to amyloid (A)
Fausto Roveta, Augusto J. Mendes, Valentina Garibotto, Cecilia Boccalini, Aurelien Lathuiliere, Innocenzo Rainero, Elisa Rubino, Henrik Zetterberg, Nicholas J. Ashton, Federica Ribaldi, Giovanni B. Frisoni, for the Alzheimer's Disease Neuroimaging Initiative   +11 more
wiley   +1 more source

A new PWM Shoot-through control for voltage-fed quasi-z-source DC/DC converters

, 2017
This paper presents a new shoot-through control method applicable for an impedance source galvanically isolated DC/DC converter. In impedance source converters, the introduction of shoot-through states increases the switching speed of H-bridge switches ...
Yuba Raj Kafle, Kafle, Yuba Raj, Hossain, Jahangir, Jahangir Hossain, Saad Ul Hasan, Hasan, Saad Ul, Muhammad Kashif, Kashif, Muhammad, Town, Graham E, Graham E. Town   +9 more
core   +1 more source

Myostatin/Smad3 in Spinal Muscular Atrophy: Biomarkers of Disease Severity and Treatment Response

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Given the role of Myostatin (MSTN) in muscle homeostasis and its modulation by current spinal muscular atrophy (SMA) therapies, we investigated serum MSTN and, for the first time, its downstream effector Smad3 as candidate non‐invasive biomarkers in SMA patients undergoing disease‐modifying therapies (DMTs).
Giorgia Riolo, Claudia Dosi, Stefano Parravicini, Riccardo Zanin, Marta Cheli, Eleonora Giacopuzzi Grigoli, Amalia Canciello, Francesca Andreetta, Riccardo Masson, Silvia Bonanno, Stefania Marcuzzo, Lorenzo Maggi   +11 more
wiley   +1 more source

Engagement Patterns With an Artificial Intelligence Health Coach for Systemic Sclerosis Self‐Management: A Mixed Methods Study

Arthritis Care &Research, EarlyView.
Objective To evaluate utility of an artificial intelligence (AI) health coach for systemic sclerosis (SSc) self‐management and identify patterns associated with participant engagement. Methods We conducted a mixed methods study in which an AI health coach, powered by a large language model (LLM), was used to support self‐management for SSc.
Nirali Shah, Melanie Morris, Cristina Daraban, Sophia Johnson, Susan L. Murphy   +4 more
wiley   +1 more source

Fabrication Routes for Ionic Conducting Fiber Strain Sensors

Advanced Engineering Materials, EarlyView.
Ionic conducting fiber strain sensors (ICFSs) offer compliant, textile‐integrable sensing. Thus far, the commercialization of ICFSs has been constrained by fiber fabrication routes. This review provides a fabrication‐centric analysis of ICFSs correlating processing strategies with material properties and scalability.
Leo John Kershaw, Zhanhong Yang, Anne Ladegaard Skov, Magdalena Skowyra   +3 more
wiley   +1 more source

Capacitor and Switch Size Comparisons on High-Power Medium-Voltage DC-DC Converters with Three-Phase Medium-Frequency Transformer

, 2021
This paper compares the capacitor requirement of\ua0selected isolated DC-DC converters for high-power and medium-voltage applications. A numerical comparison is made for a range\ua0of switching frequencies and transition times, considering not\ua0only ...
Okazaki, Yuhei,, Alikhanzadehalamdari, Babak, Thiringer, Torbj\uf6rn, Okazaki, Yuhei, Alikhanzadehalamdari, Babak,, Thiringer, Torbjörn,   +5 more
core   +1 more source

Rotary 3D Printing With Integrated Electroplating

Advanced Engineering Materials, EarlyView.
A rotary material extrusion platform integrates localized copper electroplating with printing and encapsulation to fabricate cylindrical polymer–metal structures containing fully embedded, low‐resistance conductive pathways that enable internal Joule heating and thermally activated shape‐memory responses.
Antonio Zagaria, Nicola Larovere, Moslem Mohammadi, Gianluca Percoco, Ali Zolfagharian, Gianni Stano   +5 more
wiley   +1 more source

A robust approach to controller design for DC-DC quasi-resonant converters [PDF]

, 2004
DC-DC quasi-resonant converters (QRCs) have a highly nonlinear and time-varying behavior as well as other types of DC-DC resonant converters such as conventional and multi-resonant converters.
Mitani, Yasunori, Ise, Toshifumi, Bevrani, Hassan, Tsuji, Kiichiro   +3 more
core  

Switched Z-Source/Quasi-Z-Source DC-DC Converters With Reduced Passive Components for Photovoltaic Systems

IEEE Access, 2019
In this paper, switched Z-source/quasi-Z-source dc-dc converters (SZSC/SQZSCs) are proposed for the photovoltaic (PV) grid-connected power system, where the high step-up dc-dc converters are required to boost the low voltage to high voltage.
Junfeng Liu, Jia-Lei Wu, Jianyong Qiu, Jun Zeng   +3 more
semanticscholar   +1 more source