Results 71 to 80 of about 255,632 (300)

Design of an On-line Harmonic Detection and Analysis System

open access: yesGong-kuang zidonghua, 2011
For problem that current harmonic detection and analysis devices are too expensive, a simple on-line harmonic detection and analysis system was designed.
SONG Shi-xian   +3 more
doaj  

A Minimum Side-Lobe Optimization Window Function and Its Application in Harmonic Detection of an Electricity Gird

open access: yesEnergies, 2019
Several window functions are currently applied to improve the performance of the discrete Fourier transform (DFT) harmonic detection method. These window functions exhibit poor accuracy in measuring the harmonic contents of a signal with high-order and ...
Zhenhua Li, Tinghe Hu, Ahmed Abu-Siada
doaj   +1 more source

Bose-Einstein condensation of indirect excitons in coupled quantum wells

open access: yes, 2003
We study the ground-state properties of a quasi-two-dimensional Bose-Einstein condensate of indirect excitons, which are confined in an anisotropic harmonic potential. Incorporating the interactions, we calculate the order parameter variationally.
Kavoulakis, G. M.
core   +1 more source

Quantum Binary Decision for Driven Harmonic Oscillator [PDF]

open access: yes, 1997
We address the problem of determining whether or not a harmonic oscillator has been perturbed by an external force. Quantum detection and estimation theory has been used in devising optimum measurement schemes.
Paris, Matteo G. A.
core   +3 more sources

Developmental, Neuroanatomical and Cellular Expression of Genes Causing Dystonia

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Dystonia is one of the most common movement disorders, with variants in multiple genes identified as causative. However, an understanding of which developmental stages, brain regions, and cell types are most relevant is crucial for developing relevant disease models and therapeutics.
Darren Cameron   +5 more
wiley   +1 more source

Power System Signal-Detection Method Based on the Accelerated Unsaturated Stochastic Resonance Principle

open access: yesApplied Sciences
The classical bistable stochastic resonance algorithm has an inherent output saturation defect that restricts the amplitude of the output signal. This paper examines the causes of this phenomenon and its negative impact on the detection of weak signals ...
Shuqin Sun   +4 more
doaj   +1 more source

Parametric Modeling for Two-Dimensional Harmonic Signals With Missing Harmonics

open access: yesIEEE Access, 2019
The problem of parametric modeling for the two-dimensional (2-D) harmonic signals with missing harmonics is addressed. The modeling process consists of two parts.
Zhenhua Zhou   +3 more
doaj   +1 more source

Detecting the degree of macroscopic quantumness using an overlap measurement

open access: yes, 2014
We investigate how to experimentally detect a recently proposed measure to quantify macroscopic quantum superpositions [Phys. Rev. Lett. 106, 220401 (2011)], namely, "macroscopic quantumness" $\mathcal{I}$.
Angelakis, Dimitris G.   +4 more
core   +1 more source

Whole‐Body Pattern of Muscle Degeneration and Progression in Sarcoglycanopathies

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To characterize whole‐body intramuscular fat distribution pattern in patients with sarcoglycanopathies and explore correlations with disease severity, duration and age at onset. Methods Retrospective, cross‐sectional, multicentric study enrolling patients with variants in one of the four sarcoglycan genes who underwent whole‐body ...
Laura Costa‐Comellas   +39 more
wiley   +1 more source

A Review of Harmonic Detection, Suppression, Aggregation, and Estimation Techniques

open access: yesApplied Sciences
The rapid growth of power electronics-based devices, such as electric vehicles and renewable energy systems, has introduced nonlinear components into power systems, generating high-frequency harmonics that distort current and voltage waveforms.
Kamran Daniel   +5 more
doaj   +1 more source

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