Time-Frequency Feature Extraction Method for Weak Acoustic Signals from Drill Pipe of Seafloor Drill by Jingwei Xu, Buyan Wan, Weicai Quan, Yi Xi, Xianglin Tian

“…In order to more accurately assess the differences between the different time-frequency analysis methods in the extraction of weak acoustic wave signals, short-time Fourier transform, wavelet transform, and ST are used to extract the weak acoustic wave characteristics of the drill pipe, respectively. …”
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Large Area Crops Mapping by Phenological Horizon Attention Transformer (PHAT) Method Using MODIS Time-Series Imagery by Quanshan Gao, Taixia Wu, Hongzhao Tang, JingYu Yang, Shudong Wang

“…To address these challenges, this article developed an advanced deep learning crop mapping method, i.e., phenological horizon attention mechanism-transformer model (PHAT) to achieve rapid and accurate multiple crops extraction over large areas. …”
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Investigating feature extraction by SIFT methods for prostate cancer early detection by Shadan Mohammed Jihad, Ali A. Alsaud, Firas H. Almukhtar, Shahab Kareem, Raghad Zuhair Yousif

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The Main Trends in Improving the Activities of a Higher Educational Institution in the Context of Digital Transformation by I. E Zhukovskaya

“…When writing this article, the scientific basic method of theoretical and empirical research was used: comparison of cognitive operations that underlie judgments about the similarity or difference of objects, methods of monographic research, questionnaire survey, methods of working with specialized software products, Internet sources, methods of analysis, synthesis, juxtaposition, induction, and deduction.Results. …”
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NUMERICAL AND ANALYTICAL SOLUTIONS OF BOUNDARY VALUE PROBLEM FOR PARABOLIC EQUATIONS IN NON-CYLINDRICAL AREA by G. S. Krotov, O. I. Remizova

Subjects: “…thermodynamics, heat stroke, equation of parabolic type, integral fourier-laplace-hankelâ transformation, boundary value problem, method of green's functions, finite difference method.…”
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CWMS-GAN: A small-sample bearing fault diagnosis method based on continuous wavelet transform and multi-size kernel attention mechanism. by Shun Yu, Zi Li, Jialin Gu, Runpu Wang, Xiaoyu Liu, Lin Li, Fusen Guo, Yuheng Ren

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Coupled of Semi Analytic Approach Associated with Laplace Transform First Step for Solving Matrix Differential Equations Quadratic Form when the Time-Delay in Noise Term by Khalid Hammood AL-Jizani

“…This technique can used to different nonlinear problem. The Adomian decomposition method is a semi analytical technique for solving different type of differential equations ordinary, partial, fractional, delay differential equations and many type. …”
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Targets Spatial Coordinates Calculation in Angle-Difference Rangefinder Passive Location Complexes by Numerical Iterative Methods by A. A. Dmitrenko, S. Y. Sedyshev

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A novel method for optimizing epilepsy detection features through multi-domain feature fusion and selection by Guanqing Kong, Guanqing Kong, Shuang Ma, Shuang Ma, Wei Zhao, Wei Zhao, Haifeng Wang, Haifeng Wang, Qingxi Fu, Qingxi Fu, Jiuru Wang

“…This problem is addressed through the use of a novel multi-domain feature fusion and selection method (PMPSO).MethodDiscrete Wavelet Transforms (DWT) and Welch are used initially to extract features from different domains, including frequency domain, time-frequency domain, and non-linear domain. …”
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Fault Diagnosis Method of Planetary Gearbox based on Wavelet Time-frequency Diagram and Convolutional Neural Network by Jianhua Zhou, Pan Zheng, Shuaixing Wang, Shijing Wu, Xiaosun Wang

“…Experimental results show that the proposed method has better diagnostic accuracy and robustness than the BP neural network when the speed of training set data and test set data is different. …”
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Improving accuracy matching in a mobile target tracking system by using consecutively generalized Hough transform (GHT) and normalized cross correlation (NCC) methods by M. Oğuzhan Ün, Mustafa Yagimli, Hayriye Korkmaz

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Synthesis methods of 1,2,4-triazole-3-thiones: review by Yu. S. Frolova, A. H. Kaplaushenko, T. V. Ihnatova, T. M. Kaplaushenko

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An AI recognition method for children's clinical operative pain by skin potential (SP) signal by Mingxuan Huang, Cangcang Fu, Linbo Chui, Jiadong He, Xiaozhi Wang, Jikui Luo, Bin Wu, Yonggang Chen, Shaohua Hu, Jihua Zhu, Yubo Li

“…This time-frequency analysis method, by preserving low-frequency features, is particularly suitable for SP signals. …”
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Reversible Watermarking for Electrocardiogram Protection by Pavel Andreev, Anna Denisova, Victor Fedoseev

“…In this paper, we present an extensive investigation of four reversible watermarking methods: prediction error expansion (PEE), reversible contrast mapping difference expansion (RCM), integer transform-based difference expansion (ITB), and compression-based watermarking. …”
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Online Monitoring of Partial Discharges in Large Power Transformers Using Ultra-High Frequency and Acoustic Emission Methods: Case Studies by Wojciech Sikorski, Jaroslaw Gielniak

“…Furthermore, it was shown that short-term PD monitoring enables the identification of time windows during which discharges occur periodically and the determination of the transformer phase containing the PD source. This, in turn, facilitates the application of the time difference of arrival (TDoA) technique for the precise localization of transformer insulation defects.…”
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How aromatic dissolved organic matter differs in competitiveness against organic micropollutant adsorption by Qi Wang, Oliver J. Lechtenfeld, Luuk C. Rietveld, Jonas Schuster, Mathias Ernst, Roberta Hofman-Caris, Jan Kaesler, Chunmiao Wang, Min Yang, Jianwei Yu, Frederik Zietzschmann

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Conceptual and mathematical models, methods, and technologies for the study of the digital transformation of economic and social systems: a literature review and research agenda (P... by A. S. Geyda, T. N. Gurieva, V. N. Naumov

“…Based on the systematic use of the review of the subject field, a complex of “white spots” is revealed — inconsistencies of the conceptual and mathematical models necessary in practice, methods of mathematical research of digital transformation of systems of different types, on the one hand, and the available theoretical means for such research, on the other. …”
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Polynomial approach for the most general linear Fredholm integrodifferential-difference equations using Taylor matrix method by Mehmet Sezer, Mustafa Gülsu

“…This method transforms the given general linear Fredholm integrodifferential-difference equations and the mixed conditions to matrix equations with unknown Taylor coefficients. …”
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Phase Demodulation Based on K-Space With High Sensitivity for Interferometric Fiber Sensor by Ling Chen, Jiewen Li, Jiajun Tian, Yang Bang, Kedi Tang, Yong Yao

“…This study firstly proposes and experimentally demonstrates a phase demodulation method with high sensitivity for interferometric fiber sensors (IFSs) on the basis of the fast Fourier transform of a wavenumber domain. …”
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Carbon Emission Accounting for 220 kV Transmission and Transformation Projects Based on a Whole Life Cycle Improvement Method by Chunli Wang, Xian Gao, Houyin Long

“…This study improves the carbon emission measurement method for the entire lifecycle of power transmission and transformation equipment, compiles and summarizes the carbon emission coefficients of each equipment and duration according to different typical scenarios, and measures the carbon emission of power transmission and transformation projects. …”
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