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Composite Noise Reduction Method for Internal Leakage Acoustic Emission Signal of Safety Valve Based on IWTD-IVMD Algorithm
Published 2025-07-01“…Therefore, the IWTD-IVMD composite noise reduction method can extract more main features out of the measured spring full-open safety valve internal leakage acoustic emission signals, and has a good noise reduction effect. …”
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Utilisation of eight or more antenatal care visits and its associated socio-economic-related inequalities in sub-Saharan Africa: A decomposition analysis.
Published 2025-01-01“…The decomposition analysis showed that educational attainment accounted for about 21% of the inequalities in eight or more ANC visits. …”
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A Noise Reduction Method for Photoacoustic Imaging <italic>In Vivo</italic> Based on EMD and Conditional Mutual Information
Published 2019-01-01“…The improvement of contrast-to-noise ratio is more than 2 dB and 3 dB, respectively, more than traditional wavelet threshold method and band-pass filter.…”
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Spectrum processing method for measuring low levels of specific activity of 137Cs with a NaI(Tl) detector in the presence of natural radionuclides
Published 2023-01-01“…The article proposes a method of spectrum decomposition based on the taking into account individual parameters of the spectrometer and a more accurate determination of specific activities of natural radionuclides. …”
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Enhancing multi-temporal drought forecasting accuracy for Iran: Integrating an innovative hidden pattern identifier, recursive feature elimination, and explainable ensemble learnin...
Published 2025-06-01“…Additionally, the effectiveness of the suggested model (HPFE-ETR) was assessed and contrasted with two common methods, Time-Varying Filter-based Empirical Mode Decomposition (TVF-EMD) and Variational Mode Decomposition (VMD), both of which were combined with ETR. …”
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Dynamical and Computational Analysis of Fractional Korteweg–de Vries-Burgers and Sawada–Kotera Equations in Terms of Caputo Fractional Derivative
Published 2025-06-01“…The homotopy perturbation transform method (HPTM) and the Yang transform decomposition method (YTDM) are two sophisticated techniques employed to derive analytical solutions. …”
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DISCUSSION ON COMPOUNDING METHOD AND EMPIRICAL METHOD APPLYING ON CALCULATING THE STRESS INTENSITY FACTOR IN MSD
Published 2015-01-01“…Finally a more accurate calculation method of stress intensity factor of MSD cracks was raised.…”
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Effects of Medicare predictors in health disparities in the risk of Alzheimer's disease
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Distributed Optimal Power Flow for Large-Scale Multi-Area Interconnected Power Systems
Published 2025-01-01“…This letter proposes a distributed OPF approach based on the modified decomposition-coordination interior point method (DCIPM). …”
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A Clustering-Based Dimensionality Reduction Method Guided by POD Structures and Its Application to Convective Flow Problems
Published 2025-06-01“…In contrast, clustering methods are effective for nonlinear feature extraction, yet their application in dimensionality reduction methods is hindered by unstable cluster initialization and inefficient mode sorting. …”
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The Relationship Between Production Efficiency and Factor Allocation Efficiency: A Case Study Based on Thermal Power in China
Published 2024-10-01“…This paper introduces a novel decomposition method for analyzing production efficiency based on the Data Envelopment Analysis framework, addressing the limitations of traditional approaches that often fail to isolate the contributions of individual factors. …”
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Construction and thermal decomposition properties of Nickel (Ⅱ) complex with 1-(4-benzoic acid)- 3-(pyrazinyl)-1H-1,2,4-triazole ligand
Published 2024-12-01“…A novel nickel(Ⅱ)-based complex named 1 was successfully constructed by the conventional solvothermal method, and the complex 1 was characterized by single-crystal structure analysis, powder XRD experiments, FTIR detection, and thermal decomposition properties by thermogravimetric experiments. …”
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One-Step Synthesis AlCo<sub>2</sub>O<sub>4</sub> and Derived “Al” to Double Optimise the Thermal Decomposition Kinetics and Enthalpy of Ammonium Perchlorate
Published 2025-05-01“…Among the samples prepared under different fuel ratios, considering all aspects (high-temperature decomposition temperature, activation energy, and decomposition heat) comprehensively, the AlCo<sub>2</sub>O<sub>4</sub> prepared with φ = 0.5 had a more excellent catalytic effect on AP thermal decomposition, and the <i>T<sub>HTD</sub></i> of AP was reduced to 285.4 °C, which is 188.08 °C lower. …”
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An improved GRU method for slope stress prediction
Published 2025-04-01“…The preliminary preprocessing of open pit mine slope stress data using VMD can provide high decomposition accuracy and can effectively extract localized features in the stress; The method introduces Dung Beetle Optimization (DBO) to determine the number of hidden neuron layers and the optimal learning rate for the GRU. …”
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Direct Method for Solving Bilinear Programming Problem
Published 2021-04-01“…Earlier, a modified support method was proposed to solve the problem, using the decomposition of the problem constraints of the Dantzig – Wolfe method. …”
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Multifractal Cross-Correlation Analysis of Carbon Emission Markets Between the European Union and China: A Study Based on the Multifractal Detrended Cross-Correlation Analysis and...
Published 2025-05-01“…Using the multifractal detrended cross-correlation analysis (MF-DCCA) method and the Empirical Mode Decomposition (EMD)-MF-DCCA method, this study quantifies the dynamic interrelation between carbon emission allowance returns in the Chinese and EU markets. …”
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