Results 41 to 50 of about 26,466 (149)

Fault Diagnosis Method for High-speed Train Gearbox Bearing Based on Improved VMD and Temperature-vibration Feature Fusion

Chengshi guidao jiaotong yanjiu
Objective Existing methods for high-speed train gearbox bearing monitoring and diagnosis in China often rely solely on temperature or vibration data.
WANG Lianfu, WANG Zifan, DONG Jianxiong, TIAN Guangrong   +3 more
doaj   +1 more source

Anomalies, VMD and the Enjl Model

, 1993
8 pages, plain LaTeX, preprint NORDITA - 93/69 N,P and NBI-93 ...
Bijnens, Johan, Prades, Joaquim
openaire   +2 more sources

Power load forecasting based on SMD-Informer-BiLSTM

Zhejiang dianli
To address the limitations of traditional methods—such as inadequate feature extraction and insufficient nonlinear processing capability in single deep learning models—this paper proposes a novel power load forecasting model integrating secondary modal ...
XU Shixin, LI Wenting, PENG Daogang, SHUI Jijun, LIU Jie, ZHONG Huaping   +5 more
doaj   +1 more source

Optimal capacity configuration of hybrid energy storage for PV-storage system considering prediction errors and power fluctuations

Zhejiang dianli
A hybrid energy storage system （HESS） composed of batteries and supercapacitors can effectively mitigate the impact of photovoltaic （PV） output randomness and fluctuation on grid connection.
GUO Beiyuan, YIN Yanhe, RUAN Zhijie, ZHOU Gui, LIUJin, LU Xiaohai, RUAN Dabing   +6 more
doaj   +1 more source

Enhancing Agricultural Futures Return Prediction: Insights from Rolling VMD, Economic Factors, and Mixed Ensembles

Agriculture
The prediction of agricultural commodity futures returns is crucial for understanding global economic trends, alleviating inflationary pressures, and optimizing investment portfolios.
Yiling Ye, Xiaowen Zhuang, Cai Yi, Dinggao Liu, Zhenpeng Tang   +4 more
doaj   +1 more source

VMD versus PCAC in πo → γγ

Physics Letters B, 1973
Abstract A conflict between strong PCAC and VMD is pointed out in the decay π o → γγ . A solution of the problem is presented in the weak PCAC framework.
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VDNA: The virtual DNA plug-in for VMD [PDF]

Bioinformatics, 2009
Abstract Summary: The DNA inter base pair step parameters (Tilt, Roll, Twist, Shift, Slide, Rise) are a standard internal coordinate representation of DNA. In the absence of bend and shear, it is relatively easy to mentally visualize how Twist and Rise generate the familiar double helix.
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Hybrid vacuum membrane distillation-multi effect distillation (VMD-MED) system for reducing specific energy consumption in desalination

Desalination and Water Treatment
This study focuses on the integration of vacuum membrane distillation into the multi-effect distillation (VMD-MED) system, incorporating heat recovery mechanisms to augment fresh water productivity and minimize the specific thermal energy consumption of ...
Wajeeha Bibi, Muhammad Asif, Faisal Iqbal, Jawad Rabbi   +3 more
doaj   +1 more source

A Review on Variational Mode Decomposition for Rotating Machinery Diagnosis

MATEC Web of Conferences, 2019
Signal processing method is very important in most diagnosis approach for rotating machinery due to non-linearity, non-stationary and noise signals. Recently, a new adaptive signal decomposition method has been proposed by Dragomiretskiy and Zosso known ...
Isham M. Firdaus, Leong M. Salman, Lim M. H., Zakaria M. K.   +3 more
doaj   +1 more source

Forecasting Airtel Stock Prices Through Decomposition and Integration: A Novel VMD-GARCH-LSTM Framework

International Journal of Mathematics and Mathematical Sciences
Stock price forecasting is complex due to the nonlinear and nonstationary nature of financial time series. This study proposes a hybrid variational mode decomposition (VMD)–generalized autoregressive conditional heteroskedasticity (GARCH)–long short-term
John Kamwele Mutinda, Amos Kipkorir Langat, Samuel Musili Mwalili   +2 more
doaj   +1 more source