Results 71 to 80 of about 17,339 (180)

Global Observational Comparison of Large‐Scale Traveling Atmospheric and Ionospheric Disturbances During the May 2024 Geomagnetic Storm

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract During the geomagnetic storm on 10 May 2024, neutral density measurements from 14 Tianmu, Swarm, and GRACE‐FO satellites at ∼510 km altitude, combined with total electron content (TEC) observations, enabled the first global observational comparison of large‐scale traveling atmospheric and ionospheric disturbances (LSTADs/TIDs) via snapshots ...
Xiaolong Wei   +8 more
wiley   +1 more source

Wheeze detection in the respiratory sounds using Hilbert-Huang transform [PDF]

open access: yes, 2014
Wheezes in the respiratory sounds are indicators for a number of diseases. Automatic detection of these signals -which have musical character and one or more dominant frequencies-is very important.
Omer Sayli, Sayli, Omer
core   +1 more source

Comparison of methods for the identification of mesoscale wind speed fluctuations

open access: yesMeteorologische Zeitschrift, 2017
Mesoscale wind speed fluctuations influence the characteristics of offshore wind energy. These recurring wind speed changes on time scales between tens of minutes and six hours lead to power output fluctuations. In order to investigate the meteorological
Anna Rieke Mehrens, Lueder von Bremen
doaj   +1 more source

Energy‐Based Phase‐Locking State Analysis in Brain State Identification

open access: yesHuman Brain Mapping, Volume 47, Issue 8, June 1, 2026.
EPLSA constructs an energy landscape from BOLD phase synchrony, achieving superior brain state classification and providing novel stability metrics. It demonstrates strong clinical translatability in characterizing sleep–wake transitions and Alzheimer's disease.
Chenfei Ye   +6 more
wiley   +1 more source

Induction Motor Multi-Fault Analysis Based on Intrinsic Mode Functions in Hilbert-Huang Transform [PDF]

open access: yes, 2009
This paper reports experimental studies to detect two faults in a 3-phase 1.5hp induction motor using intrinsic mode functions from Hilbert-Huang transform. The faults studied are the eccentricity of the air-gap between the rotor and stator and damage to
V. Sundararajan, Xin Xue
core   +1 more source

Hilbert-Huang Transform Based Approach for Measurement of Voltage Flicker Magnitude and Frequency [PDF]

open access: yes, 2015
Voltage flicker is a non-stationary waveform for which direct spectral analysis is not appropriate. To overcome this difficulty, a Hilbert-Huang transform based technique is proposed here.
Ece, Dogan Gokhan   +2 more
core   +3 more sources

Wheat's war against stripe rust: Integrating host immunity, genomics and breeding for durable resistance

open access: yesThe Plant Genome, Volume 19, Issue 2, June 2026.
Abstract Wheat (Triticum aestivum L.), a foundation of global food security, faces persistent threats from stripe rust caused by Puccinia striiformis f. sp. tritici (Pst). The pathogen thrives in cool and humid environments and regularly causes epidemics that lead to severe yield losses.
Farkhandah Jan   +11 more
wiley   +1 more source

Signal denoising optimization based on a Hilbert-Huang transform-triple adaptable wavelet packet transform algorithm [PDF]

open access: yes, 2019
The Hilbert-Huang transform (HHT) can retain intrinsic signal characteristics after noise reduction but still leaves a slightly noisy signal, and the wavelet packet transform (WPT) denoising algorithm eliminates noise efficiently but causes distortion of
Yongjun Zhang   +3 more
core   +1 more source

Cutting force response in milling of Inconel: analysis by wavelet and Hilbert-Huang Transforms

open access: yesLatin American Journal of Solids and Structures
We study the milling process of Inconel. By continuously increasing the cutting depth we follow the system response and appearance of oscillations of larger amplitude.
Grzegorz Litak   +2 more
doaj   +1 more source

A benchmarking of genomic selection models for predicting grain‐yield related traits using haplotype‐based and genome‐wide association study‐based markers in rice

open access: yesThe Plant Genome, Volume 19, Issue 2, June 2026.
Abstract Rice (Oryza sativa) is an important staple food, feeding more than half of the global population. A feasible improvement of rice yield is necessary to meet the ever–growing food demands. Genomic selection (GS), as an advanced breeding technique, enables the prediction of phenotypes solely based on genotypic data using a constructed genomic ...
Xiankang Hu   +8 more
wiley   +1 more source

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