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  1. 1661

    Predictive machine health monitoring using deep convolution neural network for noisy vibration signal of rotating machine using empirical mode decomposition by R. Pavithra, Prakash Ramachandran

    Published 2025-03-01
    “…The study involves two types of spectrum representation (a) Short-time Fourier Transform (STFT)of raw original signal and (b) Hilbert Huang Transform (HHT) of Empirical mode decomposition-intrinsic mode function (EMD-IMFs) and two different datasets (i) CWRU Bearing dataset and (ii) Nasa Milling Dataset which is non-stationary. …”
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  2. 1662

    Algoritmo para el cálculo de la transformada Z inversa utilizando DERIVE // Algorithm for the calculation of the transformed inverse Z using the mathematical assistant DERIVE. by D. Galán Martínez, R. Brito González

    Published 2000-07-01
    “…</p><p>_______________________________________________________________________</p><p>Abstract<br />One of the mathematical tools more used in engineering in the study of the denominated systems of data control samples is<br />the transformed Z. The transformed Z like as an operational method can be used in the resolution of equations in finite<br />differences; which formulate the dynamics of the systems of data control samples. …”
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  3. 1663

    A method of synthetic speech spoofing detection using constant Q modulation envelope by Jia XU, Zhihua JIAN, Honghui JIN, Chao WU

    Published 2023-11-01
    “…In response to the low accuracy of synthetic speech spoofing detection based on traditional acoustic feature parameters, poor detection performance for unknown types of synthetic speech, and performance degradation in noisy environments, a method for detecting spoofing synthetic speech was proposed using constant Q modulation envelope (CQME) .The motivation of the method was from the fact that the temporal envelope of speech contained abundant information and there was a big difference in detail between the envelope of synthetic speech and genuine speech.The modulation envelope spectrum of speech was obtained by employing constant Q transform (CQT), and the root mean square of each frequency component was calculated to derive the CQME feature vector.And then the CQME feature vector was used to train the random forest classifier for discriminating genuine speech from spoofing synthetic speech.Experimental results demonstrate that the random forest trained with CQME features achieves high detection performance on the ASVspoof 2019 dataset and exhibites good detection efficacy for unknown types of synthetic speech.Furthermore, the proposed method shows high detection performance even under various noise conditions, having excellent noise robustness.…”
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  4. 1664
  5. 1665
  6. 1666

    A Comparative Study on Multiwavelet Construction Methods and Customized Multiwavelet Library for Mechanical Fault Detection by Jing Yuan, Chenjun Wei, Bo Zou, Jun Zhu, Ying Wei, Yanyang Zi, Yu Zhou

    Published 2015-01-01
    “…Customized multiwavelet methods and practices have continued to improve over the recent years, focused on two-scale similarity transform (TST), lifting transform (LT), and lifting scheme (LS). …”
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  7. 1667

    A motion compensation method for the single transmitter and multiple receivers mobile radar system by Qijun Lian, Kai Da, Zhiyong Song, Ping Wang

    Published 2024-11-01
    “…First, the target points and clutter points with the same Doppler velocity are obtained by the radon Fourier transform method. Second, using the range/Doppler difference between clutter and target under multi‐radar views, the target and clutter points are separated by the spatial range mapping. …”
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  8. 1668

    Straightness monitoring of scraper conveyor based on CUDA-accelerated dynamic programming and optimized panoramic stitching by LI Bo, SHI Shouyi, ZHANG Jianjun, XIA Rui, WANG Xuewen, CUI Weixiu, NI Qiang

    Published 2025-01-01
    “…A homography matrix for image perspective transformation was calculated using the random sample consensus (RANSAC) algorithm. …”
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  9. 1669
  10. 1670

    A Study on Instantaneous Time-Frequency Methods for Damage Detection of Nonlinear Moment-Resisting Frames by Ehsan Darvishan, Gholamreza Ghodrati Amiri, Pedram Ghaderi

    Published 2014-01-01
    “…First, several instantaneous time-frequency methods including Hilbert-Huang transform, direct quadrature, Teager energy operator, and higher-order energy operator are investigated as signal processing tools and the most appropriate method is selected using an outlier analysis. …”
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  11. 1671

    Analysis and Recognition Method of Internet Image Public Opinion Based on Partial Differential Equation by Yang Zhang

    Published 2021-01-01
    “…This article comprehensively and systematically expounds the development trends and basic theory of partial differential methods, analyzes the characteristics of sampling multiscale transformation in detail, and deeply studies the network image denoising and network image restoration methods that perform partial differential diffusion in the pixel domain and the transform domain. …”
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  12. 1672

    Integrated morphophysiological, transcriptomic, and metabolomic data uncover the molecular mechanism of environmental adaptation of Zanthoxylum armatum with different latitudinal g... by Yuan Guo, Xueqian Fu, Chong Sun, Chong Sun, Yifei Deng, Han Liu, Long Tong, Mi Kuang, Ning Tang, Wenying Yang, Xia Liu, Zexiong Chen

    Published 2025-07-01
    “…Zanthoxylum armatum is a widely distributed and economically important forest species in China that shows remarkable regional adaptability. However, adaptive differences under diverse environmental conditions and their molecular mechanisms have not been systematically studied.MethodsPlant materials of Z. armatum from three regions (Shandong, Chongqing, and Yunnan) representing different latitudinal backgrounds were cultivated under uniform conditions. …”
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  13. 1673

    Comparative analysis of Polylactic Acid/Bamboo biocomposites manufactured by Additive Manufacturing and Compression Moulding Methods by D. Balaji, B. Arulmurugan, V. Bhuvaneswari, M. Sathishkumar

    Published 2025-05-01
    “…The weight fraction of bamboo fibers was taken as 20 % for both the manufacturing methods. The filament and the biocomposites were characterized by X-Ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR). …”
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  14. 1674

    CIRCULAR PUNCH INDENTATION INTO CONTINUOUSLY INHOMOGENEOUS THERMOELASTIC HALF-SPACE UNDER GIVEN CONSTANT TEMPERATURE AT ITS FLAT BOTTOM by Leonid Ivanovich Krenev, Sergey Mikhaylovich Aizikovich, Boris Igorevivich Mitrin

    Published 2014-03-01
    “…The earlier solution, obtained through the combined numerical and analytical ap proach (using Hankel integral transform and the modulating fun ction method) to the unmixed pro b lem on the arbitrary thermomechanical effect upon the inhomogeneous in depth thermoelastic half - space, is applied to solve the problem. …”
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  15. 1675

    Medical Image Hybrid Watermark Algorithm Based on Frequency Domain Processing and Inception v3 by Yu Fan, Jingbing Li, Uzair Aslam Bhatti, Saqib Ali Nawaz, Yenwei Chen

    Published 2025-06-01
    “…Existing research has mostly focused on optimizing individual techniques, lacking comprehensive solutions that integrate the strengths of different methods. This article proposes a hybrid digital watermarking algorithm for medical images based on frequency domain transformation and deep learning convolutional neural networks. …”
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  16. 1676
  17. 1677

    The first integral method for the perturbed Wadati-Segur- Ablowitz equation with time dependent coefficient by MUSTAFA INC, BULENT KILIC

    Published 2015-12-01
    “…We obtained some different solutions by using Gauge transformationwith time dependent coefficient of variable transformations. …”
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  18. 1678

    Deterministic Calculation Method for Continuous-energy Neutron Transport Equation in No-resonance Energy-range by LIU Haopo, LI Yunzhao, WU Hongchun, CAO Liangzhi

    Published 2024-06-01
    “…Ultimately forming the coupling calculations between different energy ranges. Based on this foundation, the coupling calculation method between different energy segments in the non-resonant energy range was investigated, and an effective iterative calculation and numerical solution method was established. …”
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  19. 1679

    NEW BALANCE METHOD OF DRILLING RIG LOAD OF MULTIFUNCTIONAL DRILLING COMPREHENSIVE EXPERIMENT PLATFORM by TIAN JiaLin, YANG Zhi, FU ChuanHong, YU ChangBo, DONG MingJian, LONG XiaoKang, FANG Jian, LI You

    Published 2015-01-01
    “…Then by the internal and external balance methods,the results were calculated and compared,and the different effects on the experiment platform performance were obtained. …”
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  20. 1680

    Methods for Detection, Extraction, Purification, and Characterization of Exopolysaccharides of Lactic Acid Bacteria—A Systematic Review by Manoj Kumar Yadav, Ji Hoon Song, Robie Vasquez, Jae Seung Lee, In Ho Kim, Dae-Kyung Kang

    Published 2024-11-01
    “…In the present review, we discuss the different existing methods used for the detailed study of LAB-produced EPSs, which provide a comprehensive guide on LAB-EPS preparation, critically evaluating methods, addressing knowledge gaps and key challenges, and offering solutions to enhance reproducibility, scalability, and support for both research and industrial applications.…”
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