Results 11 to 20 of about 2,284 (152)

A Fuel Cell Aging Prediction Method Based on Symplectic Geometry Mode Decomposition and Divide-and-Conquer Gated Recurrent Unit

open access: closedIEEE Transactions on Energy Conversion
The superposition of aging characteristics in fuel cells is a major cause of inaccurate predictions. Unlike traditional methods that mix linear and nonlinear aging characteristics, this paper develops a prediction method based on Symplectic Geometry Mode Decomposition and Divide-and-Conquer Gated Recurrent Units (SGMD-DCGRU).
Zhuang Tian   +5 more
semanticscholar   +5 more sources

Train Axlebox Bearing Fault Diagnosis Based on MSC–SGMD [PDF]

open access: yesSensors, 2023
Train axlebox bearings are subject to harsh service conditions, and the difficulty of diagnosing compound faults has brought greater challenges to the maintenance of high–quality train performance.
Yongliang Bai, Hai Xue, Jiangtao Chen
doaj   +2 more sources

A Fault Diagnosis Approach for Rolling Bearing Integrated SGMD, IMSDE and Multiclass Relevance Vector Machine [PDF]

open access: yesSensors, 2020
The vibration signal induced by bearing local fault has strong nonstationary and nonlinear property, which indicates that the conventional methods are difficult to recognize bearing fault patterns effectively.
Xiaoan Yan, Ying Liu, Minping Jia
doaj   +2 more sources

Partial Discharge Fault Diagnosis in Power Transformers Based on SGMD Approximate Entropy and Optimized BILSTM [PDF]

open access: yesEntropy
Partial discharge (PD) fault diagnosis is of great importance for ensuring the safe and stable operation of power transformers. To address the issues of low accuracy in traditional PD fault diagnostic methods, this paper proposes a novel method for the ...
Haikun Shang   +3 more
doaj   +2 more sources

Dengue fever prediction based on meteorological features and deep learning models [PDF]

open access: yesInfectious Disease Modelling
The dengue fever epidemic is one of the health priorities of the World Health Organization (WHO), and accurately predicting its epidemiological trends is crucial.
Yunyun Cheng   +4 more
doaj   +2 more sources

Pulling Back Theorem for Generalizing the Diagonal Averaging Principle in Symplectic Geometry Mode Decomposition and Singular Spectrum Analysis [PDF]

open access: green
18 pages, 6 figures, 5 ...
Hong‐Yan Zhang   +6 more
openalex   +3 more sources

Gear fault diagnosis based on SGMD noise reduction and CNN

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2022
Gear vibration fault signals are non-stationary and nonlinear, so it is very difficult to accurately extract the fault characteristics for diagnosis. As symplectic geometry mode decomposition (SGMD) has shown excellent decomposition performance and noise
Wei CHEN   +3 more
doaj   +1 more source

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