Results 11 to 20 of about 34,460 (284)

A study on VMD(Visual Merchandising) cognition difference of the VMD operation systems

open access: yesThe Korean Society of Costume, 2014
The importance of VMD operation strategies in fashion business is growing, and this study analyzed the difference in consumers` VMD cognition of the two VMD operation systems: VMD specialist employment system and VMD outsourcing system. Two SPA brands were selected as the representative cases of the two VMD operation systems. A statistical analysis was
Minyoung Kim, Jinhwa Lee, Saehee Kim
exaly   +3 more sources

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

open access: yesAgriculture
The prediction of agricultural commodity futures returns is crucial for understanding global economic trends, alleviating inflationary pressures, and optimizing investment portfolios.
Yiling Ye   +4 more
doaj   +2 more sources

GMPSO-VMD Algorithm and Its Application to Rolling Bearing Fault Feature Extraction

open access: yesSensors, 2020
The vibration signal of an early rolling bearing is nonstationary and nonlinear, and the fault signal is weak and difficult to extract. To address this problem, this paper proposes a genetic mutation particle swarm optimization variational mode ...
Jiakai Ding, Xuejun Li, Dongming Xiao
exaly   +3 more sources

Prediction of significant wave height using a VMD-LSTM-rolling model in the South Sea of China

open access: yesFrontiers in Marine Science
Accurate prediction of significant wave height is crucial for ocean engineering. Traditional time series prediction models fail to achieve satisfactory results due to the non-stationarity of significant wave height.
Tong Ding   +5 more
exaly   +3 more sources

Dynamic Hyperbolic Tangent PSO-Optimized VMD for Pressure Signal Denoising and Prediction in Water Supply Networks

open access: yesEntropy
Urban water supply networks are prone to complex noise interference, which significantly degrades the performance of data-driven forecasting models. Conventional denoising techniques, such as standard Variational Mode Decomposition (VMD), often rely on ...
Yujie Shang, Zheng Zhang
doaj   +2 more sources

Nanoscale Analysis of the Interaction Between Cyanoacrylate and Vacuum Metal Deposition in the Development of Latent Fingermarks on Low-Density Polyethylene [PDF]

open access: yes, 2012
Vacuum metal deposition (VMD) has been previously demonstrated as an effective development technique for latent fingermarks and in some cases has been shown to enhance prints developed with cyanoacrylate (CA) (superglue) fuming.
Sears, V.G., Jones, Benjamin, Downham, R
core   +4 more sources

A noise reduction forecasting method of bus load based on sequence decomposition

open access: yesZhejiang dianli, 2023
In the context of new power systems, the diverse distributed power sources and user-side behavior have introduced instability in bus loads, thus presenting a fresh challenge for short-term load forecasting.
YANG Jian   +5 more
doaj   +1 more source

Monthly runoff prediction using the VMD-LSTM-Transformer hybrid model: a case study of the Miyun Reservoir in Beijing

open access: yesJournal of Water and Climate Change, 2023
Accurate runoff prediction is of great significance for flood prevention and mitigation, agricultural irrigation, and reservoir scheduling in watersheds. To address the strong non-linear and non-stationary characteristics of runoff series, a hybrid model
Shaolei Guo   +3 more
doaj   +1 more source

Research on communication emitter identification based on semi-supervised dimensionality reduction in complex electromagnetic environment [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2023
The individual identification of communication emitters is a process of identifying different emitters based on the radio frequency fingerprint features extracted from the received signals. Due to the inherent non-linearity of the emitter power amplifier,
Wei Ge   +6 more
doaj   +1 more source

Confirmation of the Rabbit Hemorrhagic Disease Virus Type 2 (GI.2) Circulation in North Africa

open access: yesActa Veterinaria, 2022
Rabbit hemorrhagic disease (RHD) is a highly contagious viral disease that causes fatal acute hepatitis in domestic and wild lagomorphs. It has taken on major economic importance in countries like Morocco.
Saidi Aissa, Aboutaib Abdelouahed
doaj   +1 more source

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