Results 61 to 70 of about 66,926 (309)

Spinal Cord Infarction Versus Idiopathic Transverse Myelitis: Clinical, Radiological, and Functional Insights From a Retrospective Cohort Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Spinal cord infarction (SCI) is a rare but devastating myelopathy, characterized by a high disability rate and an unfavorable prognosis. It has often been underdiagnosed and misdiagnosed as idiopathic transverse myelitis (ITM). This study aimed to describe the clinical features, radiological biomarkers, treatments, and functional ...
Zeqiang Ji   +13 more
wiley   +1 more source

Behaviour of Modular Multilevel DC/DC ConverterWith DC Voltage Control Integrated in a Multi-terminal DC System Under Fault Conditions [PDF]

open access: yes
The development of multi-terminal DC (MTDC) networks has various challenges as interconnecting grids of different voltages and grounding schemes, DC grid protection and power flow.
COLAS, Frédéric   +3 more
core   +1 more source

An Extended Voltage Gain Three-Level DC/DC Bidirectional Converter in an Electric Vehicle Traction System

open access: yesIEEE Access
Electric vehicle transportation is a constantly advancing technology. In electric vehicles, battery charging is a critical necessity. The demand for DC/DC bidirectional converters in electric vehicle electrical systems is significantly higher than that ...
Nalluri Ramya Sri, M. Praveen Kumar
doaj   +1 more source

Fluid Biomarkers of Disease Burden and Cognitive Dysfunction in Progressive Supranuclear Palsy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Identifying objective biomarkers for progressive supranuclear palsy (PSP) is crucial to improving diagnosis and establishing clinical trial and treatment endpoints. This study evaluated fluid biomarkers in PSP versus controls and their associations with regional 18F‐PI‐2620 tau‐PET, clinical, and cognitive outcomes.
Roxane Dilcher   +10 more
wiley   +1 more source

DC-DC Converter Design Issues for High-Efficient DC Microgrid

open access: yes, 2019
In this article, the electrical properties, as well as the economic aspects of the modular and non-modular solution of the DC-DC photovoltaic converter for DC microgrid subsystem, are described.
Michal Frivaldsky, Jan Morgos
core   +1 more source

Impedance Shaping of Isolated Two-Stage AC-DC-DC Converter for Stability Improvement

open access: yesIEEE Access, 2019
The isolated two-stage ac-dc-dc converter containing an isolated dual-active-bridge (DAB) dc-dc converter and an ac-dc rectifier has been widely used for connecting the dc sources to the ac utility grid. However, the impedance interaction between the DAB
Fan Feng, Fengjiang Wu, Hoay Beng Gooi
doaj   +1 more source

High Efficiency LLC Resonant Converter With Wide Output Range of 200–1000 V for DC-Connected EVs Ultra-Fast Charging Stations

open access: yesIEEE Access, 2023
DC-connected ultra-fast chargers consist of isolated DC/DC converter modules to provide the required charging profile. This paper proposes a charging module that interfaces with a fixed voltage DC-bus and covers a wide variety of electric vehicles (EVs ...
Ahmed Elezab   +3 more
doaj   +1 more source

Analysis and Comparison of DC-DC Boost Converter and Interleaved DC-DC Boost Converter

open access: yesEngineering and Technology Journal, 2020
The step-up converters are widespread use in many applications, including powered vehicles, photovoltaic systems, continuous power supplies, and fuel cell systems. The reliability, quality, maintainability, and reduction in size are the important requirements in the energy conversion process.
Karrar Faraj, Jasim Hussain
openaire   +2 more sources

Effectiveness of rTMS on Working Memory and Inhibitory Impairments in Patients With Post‐Stroke Executive Deficits

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Considerable efforts have been dedicated to developing effective treatments for post‐stroke executive impairment (PSEI), among which repetitive transcranial magnetic stimulation (rTMS) has shown great potential. This study aimed to investigate the therapeutic effects of high‐frequency rTMS on working memory (WM) and response ...
Mengting Lao   +6 more
wiley   +1 more source

PENGGUNAAN FUZZY LOGIC UNTUK KONTROL PARALLEL CONVERTER DC-DC

open access: yesTeknologi dan Kejuruan, 2012
: Using system fuzzy logic as control  technology have been used on low load dc-dc converter with combined parallel compiled  dc-dc converter can  obtain big load.
Bambang Prio Hartono
doaj   +1 more source

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