Results 51 to 60 of about 782,951 (248)

Analysis of the DC Bias Effects on the UHV Autotransformer with Rated Load Based on a Reduced-Scale Model Experiment

open access: yesApplied Sciences, 2020
The DC bias of transformers as a result of geomagnetically induced currents (GIC), monopole operation of high voltage direct current (HVDC) transmission and the increasing power electronic devices in the power grid, creates a high magnitude of ...
Bing Li   +3 more
doaj   +1 more source

Reduction of geomagnetically induced current impacts by optimized neutral point connections

open access: yesIET Generation, Transmission & Distribution, 2023
Solar storms impact electrical power grids by causing quasi‐DC neutral point currents in transformers. These currents lead to half‐cycle saturation as well as other related and unwanted effects in the grid.
Philipp Schachinger   +2 more
doaj   +1 more source

Performance Comparison of Ferrite and Nanocrystalline Cores for Medium-Frequency Transformer of Dual Active Bridge DC-DC Converter

open access: yesEnergies, 2021
This article reports an investigation into ferrite and nanocrystalline materials for the medium-frequency transformer of a dual active bridge DC-DC converter, which plays a key role in the converter’s efficiency and power density.
Sakda Somkun   +5 more
doaj   +1 more source

Bridging the gap: a genetically validated avian chorioallantoic membrane platform for investigation of spontaneous circulating tumor cells

open access: yesMolecular Oncology, EarlyView.
We established the avian chorioallantoic membrane (CAM) assay as a scalable in vivo model for studying circulating tumor cells (CTCs). Human gastrointestinal tumors spontaneously released genetically validated CTCs that were detected across multiple platforms, demonstrating that the CAM model provides an accessible tool for investigating early cancer ...
Dennis Roth   +17 more
wiley   +1 more source

Modeling and Characterization of Series Connected Hybrid Transformers for Low-Profile Power Converters

open access: yesIEEE Access, 2020
Compact and low profile power converters are the main business of today's power industry. A significant volume of a power converter is occupied by the power transformer.
M. Abu Bakar   +2 more
doaj   +1 more source

Heterotropic regulation and negative homotropic cooperativity

open access: yesFEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea   +5 more
wiley   +1 more source

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open access: yes, 2020
dc....description.....abstractdc....description....pagesdc....description.....specNumrdc....description....specialitydc....description....coursedc....description....eduLeveldc....description....qualificationdc....description.....studyModedc ...
Лусто И.И, Койпиш В.Г
core  

Identification and characterisation of calcitonin receptor isoforms expressed in glioblastoma derived glioma stem and U‐87 MG cells

open access: yesFEBS Open Bio, EarlyView.
Glioblastoma cells express calcitonin receptor variants (CT receptor isoforms) that may help them survive stress. Using qPCR, transcript‐specific long‐read nanopore sequencing, immunofluorescence co‐localisation and comparative sequence analysis, this study identifies a novel alternatively spliced CALCR transcript that encodes the CTb receptor isoform ...
Pragya Gupta   +7 more
wiley   +1 more source

Shielding effect of high frequency power transformers for DC/DC converters used in solar PV systems [PDF]

open access: yes, 2010
Conventional high frequency power transformers are configured without protection to avoid parasitic effects. Therefore this paper presents and investigates a FEM technique and measurement results for planar and coaxial high frequency power ...
Stegen, Sascha   +3 more
core   +1 more source

Spatial and Volumetric Characteristics of Glioblastoma: Associations With Clinical Presentation and Survival

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective We aim to comprehensively analyze how regional tumor and edema characteristics are associated with clinical presentations and survival outcomes in a large cohort of glioblastoma patients. Methods Patients with IDH‐wildtype glioblastoma who received brain MRI from 2010 to 2023 were included.
Daniel J. Zhou   +16 more
wiley   +1 more source

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