Results 71 to 80 of about 241,347 (311)

BREAKDOWN CHARACTERISTICS OF GASES IN NON-UNIFORM FIELDS

open access: yesElectrica, 2004
AC breakdown strengths of CO2, N2, SF6 and air in non-uniform field were experimentally studied. The experimental results have shown that the breakdown voltages of SF6 in the practical range of pressure (100-200 kPa) are always higher than those of other
Emel ÖNAL
doaj   +2 more sources

The Influence of Electric Field Inhomogeneity on Repetitive Performance of a Corona-Stabilized Switch

open access: yesIEEE Access, 2020
The corona-stabilized switch has a great potential in pulsed power systems where high pulse repetition frequencies are required. Corona discharge in SF6 in highly inhomogeneous electric field is utilized to improve repetitive performance of this kind of ...
Longjie Li, Zongze Huang, Yan Yang
doaj   +1 more source

Early Clinical, Imaging, and Pathological Characteristics of SRPK3/TTN‐Digenic Myopathy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective SRPK3/TTN‐digenic myopathy was recently established as a skeletal muscle myopathy caused by digenic inheritance. This study characterizes the early clinical presentation of SRPK3/TTN‐digenic myopathy in one previously reported and seven newly identified pediatric patients.
Rotem Orbach   +23 more
wiley   +1 more source

Diagnostics of porcelain insulators by partial discharges characteristics

open access: yesИзвестия высших учебных заведений: Проблемы энергетики
RELEVANCE of the research is in the development of a non-destructive method for diagnosing porcelain insulators of high-voltage electrical equipment based on analysis of the characteristics of partial discharges (PDs).
A. M. Gataullin   +3 more
doaj   +1 more source

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright   +10 more
wiley   +1 more source

Interaction of Intraprocedural Antiplatelets and Intravenous Thrombolysis in Acute Intracranial Stenting: RESISTANT Registry Subanalysis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction/Objective Acute intracranial stenting during endovascular thrombectomy (EVT) for ischemic stroke requires intraprocedural antiplatelet therapy (APT) to maintain patency. However, the hemorrhagic risk of combining APT with intravenous thrombolysis (IVT) remains uncertain.
Aaron Rodriguez‐Calienes   +75 more
wiley   +1 more source

Cracking the Code: Which Ocular Symptoms Predict Dry Eye Signs? Insights From a Large International Sicca Registry

open access: yesArthritis Care &Research, EarlyView.
Objective The study aimed to identify symptom‐based predictors of dry eye disease (DED) signs in the Sjögren's International Collaborative Clinical Alliance (SICCA) cohort. Methods We performed a retrospective analysis examining 16 ocular symptoms (most graded 0–4) and artificial tear (AT) use (graded 0–3) as predictors of DED signs (abnormal ocular ...
Pragnya R. Donthineni   +7 more
wiley   +1 more source

Electrical Treeing Characteristics in XLPE Power Cable Insulation in Frequency Range between 20 and 500 Hz

open access: yes, 2009
Electrical treeing is one of the main reasons for long term degradation of polymeric materials used in high voltage ac applications. In this paper we report on an investigation of electrical tree growth characteristics in XLPE samples from a commercial ...
Tham, C H, Chen, George
core  

Study on the influence of O2 on the breakdown voltage and self-recovery characteristics of c-C4F8/N2 mixture

open access: yesAIP Advances, 2018
The c-C4F8 gas is considered to have great potential as a gaseous medium for use in gas-insulated equipment due to its good insulation properties and its relatively low greenhouse gas potential (Global warming potential, GWP) relative to SF6.
Song Xiao   +6 more
doaj   +1 more source

Accumulation Behaviors of Different Particles and Effects on the Breakdown Properties of Mineral Oil under DC Voltage

open access: yesEnergies, 2019
Particles in transformer oil are harmful to the operation of transformers, which can lead to the occurrence of partial discharge and even breakdown.
Min Dan   +5 more
doaj   +1 more source

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