Results 121 to 130 of about 31,027 (310)

[18F]Fluorodeoxyglucose positron emission tomography ([18F]FDG PET) Characterizes Neurodegeneration Levels Across the α‐Synucleinopathy Continuum

Movement Disorders, EarlyView.
Abstract Background [18F]Fluorodeoxyglucose positron emission tomography ([18F]FDG PET) represents an endorsed neurodegeneration biomarker in neuronal α‐synucleinopathies. Idiopathic/isolated rapid eye movement (REM) sleep behavior disorder (iRBD) represents a prodromal stage of such disorders.
Beatrice Orso, Ignacio Roura, Pietro Mattioli, Francesco Famà, Federico Massa, Luigi Lorenzini, Andrea Brugnolo, Nicola Girtler, Mattia Losa, Stefano Raffa, Luca Sofia, Monica Roascio, Gabriele Arnulfo, Silvia Morbelli, Matteo Pardini, Dario Arnaldi   +15 more
wiley   +1 more source

Design of Hall power supply based on full bridge half bridge switching digital LLC resonant converter

Dianzi Jishu Yingyong
A power processing unit suitable for Hall electric propulsion systems is designed to meet the high input voltage requirements of space missions such as deep space exploration.
Xu Tinghao, Wang Shaoning, Liu Aohui
doaj   +1 more source

Seeing Invisible Oligomers: Rethinking α‐Synuclein Pathology Through Proximity Ligation Assay

Movement Disorders, EarlyView.
Abstract Parkinson's disease (PD) and multiple system atrophy are defined by α‐synuclein (αSYN)‐positive inclusions – Lewy bodies (LBs) and glial cytoplasmic inclusions – yet mounting evidence indicates that these inclusions represent only a fraction of disease‐relevant pathology.
Hiroaki Sekiya, Nanna Møller Jensen, Dennis W. Dickson, Poul Henning Jensen   +3 more
wiley   +1 more source

Topology Selection of LLC Resonant Converter Applied in PETT

Kongzhi Yu Xinxi Jishu, 2017
LLC resonant converter is the key part of power electronic traction transformer (PETT), and the choice of its topology is critical. It analyzed the LLC resonant converter with symmetrical half bridge, asymmetrical half bridge and full bridge structure ...
CHEN Jiang, LIU Huadong, HUANG Zihao
doaj  

Progression of Motor and Cognitive Functions in Isolated REM Sleep Behavior Disorder: A 7‐Year Prospective Matched Cohort Study

Movement Disorders, EarlyView.
Abstract Background Although clinical markers (eg, motor and cognitive impairment) in isolated rapid eye movement sleep behavior disorder (iRBD) are associated with faster phenoconversion, their longitudinal trajectory patterns (linear or nonlinear) remain unclear.
Li Zhou, Yaping Liu, Bei Huang, Jing Wang, Shi Tang, Yuhua Yang, Siyi Gong, Steven W.H. Chau, Joey W.Y. Chan, Mandy W.M. Yu, Jessie C.C. Tsang, Shirley Xin Li, Siu Ping Lam, Vincent C.T. Mok, Karen K.Y. Ma, Anne Y.Y. Chan, Jihui Zhang, Yun Kwok Wing   +17 more
wiley   +1 more source

Design and Manufacture of the RF Power Supply and RF Transmission Line for SANAEM Project Prometheus

, 2017
A 1-5 MeV proton beamline is being built by the Turkish Atomic Energy Authority in collaboration with a number of graduate students from different universities.
Ahiska, F., Alacakir, A., Cicek, E., Kilic, I., Ogur, S., Ozbey, A., Turemen, G., Unel, G., Yasatekin, B.   +8 more
core   +1 more source

Optimized Detection of Left Ventricular Hyperpolarized [1‐13C]Pyruvate Signal in Human Cardiac Metabolic Imaging

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose This study aimed to improve the analysis of the left ventricular (LV) blood pool hyperpolarized [1‐13C]pyruvate signal for a more reliable quantification of downstream metabolic outcome. Methods Hyperpolarized [1‐13C]pyruvate magnetic resonance spectroscopic images were acquired dynamically at 3 Tesla in 106 participants (NCT03685175).
Fatemeh Khashami, Ivan E. Dimitrov, Maximilian Fuetterer, Stefan Glöggler, Bei Zhang, Egzona Tan, Sebastian Kozerke, Anke Henning, Tarique Hussain, Craig R. Malloy, Nisha Unni, Vlad G. Zaha, CTOX Trial Investigator(s), Sheeba Cantanelli, Isaac Chan, Suzanne Cole, Suzanne Conzen, Glenda Delgado, Deborah Farr, Joshua Gruber, Barbara Haley, Dawn Klemow, Jenny Li, Heather McArthur, Alka Mallik, Poorni Manohar, Ina Patel, Namrata Peswani, Sangeetha Reddy, Navid Sadeghi, Samira Syed   +30 more
wiley   +1 more source

Multiphase LLC DC-Link Converter with Current Equalization Based on CM Voltage-Controlled Capacitor

Energies
In this study, a current-equalization technology utilizing a variable-capacitance technique for a multiphase inductor–inductor–capacitor (LLC) converter is studied.
Yue-Lin Lee, Kuo-Ing Hwu
doaj   +1 more source

Current driven synchronous rectifier with saturable current transformer and dynamic gate voltage control for LLC resonant converter [PDF]

, 2012
This paper proposes an improved current driven synchronous rectifier with saturable current transformer and dynamic gate voltage control feature for LLC resonant converter efficiency improvement.
Ho, GKY, Pong, BMH, Yu, R
core  

On the Origin of the Brain Semi‐Heavy Water Deuterium MR Signal Following Administration of Deuterated Metabolic Substrate: A Cautionary Tale

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To evaluate the extent to which the appearance of HOD in the brain following systemic administration of a deuterated substrate is due to local brain metabolism versus body metabolism. Methods [6,6‐2H2]glucose, which is transported across the blood‐brain barrier (BBB), and [6,6‐2H2]fructose (Fruc), which does not cross the BBB, were ...
Joseph J. H. Ackerman, Xia Ge, Nick Rensing, Jeffrey J. Neil, Liu Lin Thio, Joel R. Garbow   +5 more
wiley   +1 more source