Results 111 to 120 of about 6,561,632 (351)

Stability Analysis of Bipolar LVDC Grid

open access: yesInternational Transactions on Electrical Engineering and Computer Science, 2022
The study and regulation of bipolar DC structures covered by asymmetrical action, the DC symmetric part approach is implemented. This approach is an expansion of the standard principle of symmetrical components in three phase AC-controlled networks.
T. Raghu, D. Rajesh Reddy
doaj  

A Comprehensive Overview of the Clinical, Electrophysiological, and Neuroimaging Features of BPAN: Insights From a New Case Series

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Neurodegeneration with brain iron accumulation (NBIA) comprises a genetically and clinically heterogeneous group of rare neurological disorders characterized particularly by iron accumulation in the basal ganglia. To date, 15 genes have been associated with NBIA.
Seda Susgun   +95 more
wiley   +1 more source

Implementation of three-phase transformer model in radial load-flow analysis

open access: yesAin Shams Engineering Journal, 2013
This paper presents an efficient approach for developing three-phase transformer admittance matrices in the radial power-flow analysis. The proposed transformer model overcomes the singularity problem of the nodal admittance submatrices of ungrounded ...
Mamdouh Abdel-Akher, Karar Mahmoud
doaj   +1 more source

Cycling Joule Thomson refrigerator [PDF]

open access: yes, 1983
A symmetrical adsorption pump/compressor system having a pair of mirror image legs and a Joule Thomson expander, or valve, interposed between the legs thereof for providing a, efficient refrigeration cycle is described.
Tward, E.
core   +1 more source

Impact of APOE ε4 Genotype Load on Cognitive Function and Lipid Metabolism in Patients With Cerebral Small Vessel Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Apolipoprotein ε4 (APOE ε4) is a potent genetic risk factor for Alzheimer's disease (AD). However, its role in cerebral small vessel disease (CSVD) remains unclear. Given the clinical and pathological similarities between CSVD and AD, this study aimed to investigate the associations of APOE ε4 gene dosage with cognitive function and
Tingru Jin   +6 more
wiley   +1 more source

Design and Implementation of a STATCOM Based on a Multilevel FHB Converter with Delta-Connected Configuration for Unbalanced Load Compensation

open access: yesEnergies, 2017
A delta-connected STATCOM with cascade multilevel full H-bridge (FHB) converter has been applied for phase balancing and power factor correction of unbalanced load in a three-phase, three-wire power distribution system.
Wei-Neng Chang, Ching-Huan Liao
doaj   +1 more source

Closed loop analysis of a triangular wave generator (Closed loop system analysis of triangular wave generator consisting of integrator, on-off element with hysteresis and multiplier) [PDF]

open access: yes, 1971
Applications requiring a triangular wave generator that gives a symmetrical output, and the frequency of which can be varied over a wide range by an external input voltage, are many-fold.
Sankaranarayanan, PE
core  

Portable Low‐Field Magnetic Resonance Imaging in People With Human Immunodeficiency Virus

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The aging population of people with HIV (PWH) raises heightened concerns regarding accelerated aging and dementia. Portable, low‐field MRI (LF‐MRI) is an innovative technology that could enhance access and facilitate routine monitoring of PWH.
Annabel Sorby‐Adams   +14 more
wiley   +1 more source

Combination of the Methods of symmetrical components and Double Entry to Increase the Reliability of Digital Differential Relay Protection

open access: yesE3S Web of Conferences, 2018
The method of symmetrical components is one of the main methods used to calculate asymmetric modes in electric power systems. To increase the reliability of digital differential relay protection in case of asymmetric faults, a combination of symmetric ...
Kulikov Aleksandr L.   +3 more
doaj   +1 more source

Spatial entanglement of twin quantum images

open access: yes, 2000
We show that spatial entanglement of two twin images obtained by parametric down-conversion is complete, i.e. concerns both amplitude and phase. This is realised through a homodyne detection of these images which allows for measurement of the field ...
Brambilla, Enrico   +3 more
core  

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