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1,873 Results Found

  • Article
  • Open Access
4 Citations
2,128 Views
13 Pages

4 October 2022

We herein mainly employ a proper orthogonal decomposition (POD) to study the reduced dimension of unknown solution coefficient vectors in the Crank–Nicolson finite element (FE) (CNFE) method for the symmetric tempered fractional diffusion equat...

(This article belongs to the Topic Numerical Methods for Partial Differential Equations)
  • Article
  • Open Access
1,842 Views
14 Pages

5 September 2025

Hybrid-electric aircraft require a reliable power distribution architecture. The electrical drive system is connected to the power source via a DC-link composed mostly of capacitors—one of the faultiest power electronic components. In order to...

(This article belongs to the Special Issue Electric Machinery and Transformers III)
  • Article
  • Open Access
16 Citations
4,396 Views
17 Pages

19 April 2022

Investor interest in single-trigger catastrophe bonds (STCB) has the potential to decline in the future. It is triggered by the increasing trend of global catastrophe loss and intensity every year, which increases the probability that a claim of STCB...

  • Article
  • Open Access
2 Citations
1,306 Views
17 Pages

Spatio-Temporal Recursive Method for Traffic Flow Interpolation

  • Gang Wang,
  • Yuhao Mao,
  • Xu Liu,
  • Haohan Liang and
  • Keqiang Li

21 September 2025

Traffic data sequence imputation plays a crucial role in maintaining the integrity and reliability of transportation analytics and decision-making systems. With the proliferation of sensor technologies and IoT devices, traffic data often contain miss...

(This article belongs to the Section A: Computer Science)
  • Article
  • Open Access
26 Citations
5,387 Views
21 Pages

10 December 2019

The gait phase classification method is a key technique to control an exoskeleton robot. Different people have different gait features while wearing an exoskeleton robot due to the gap between the exoskeleton and the wearer and their operation habits...

(This article belongs to the Section Intelligent Sensors)
  • Article
  • Open Access
22 Citations
2,179 Views
11 Pages

29 June 2022

By means of a proper orthogonal decomposition (POD) to cut down the dimensionality of unknown finite element (FE) solution coefficient vectors in the Crank–Nicolson (CN) mixed FE (CNMFE) method for two-dimensional (2D) unsteady Stokes equations...

(This article belongs to the Section E: Applied Mathematics)
  • Article
  • Open Access
11 Citations
2,138 Views
15 Pages

Improved Reconstruction Algorithm of Wireless Sensor Network Based on BFGS Quasi-Newton Method

  • Xinmiao Lu,
  • Cunfang Yang,
  • Qiong Wu,
  • Jiaxu Wang and ,
  • Yuhan Wei,
  • Liyu Zhang,
  • Dongyuan Li and
  • Lanfei Zhao
  • + 3 authors+ 0 author

Aiming at the problems of low reconstruction rate and poor reconstruction precision when reconstructing sparse signals in wireless sensor networks, a sparse signal reconstruction algorithm based on the Limit-Broyden-Fletcher-Goldfarb-Shanno (L-BFGS)...

(This article belongs to the Special Issue Deep Learning in Image Processing and Pattern Recognition)
  • Article
  • Open Access
11 Citations
3,691 Views
20 Pages

A Designed Calibration Approach for the Measurement-While-Drilling Instrument

  • Zongwei Liu,
  • Kan Lei,
  • Jiancheng Song,
  • Linbo Li and
  • Tao Li

21 December 2022

The Measurement-While-Drilling (MWD) system, composed of a tri-axial magnetometer and a tri-axial accelerometer, is widely used in the Horizontal Directional Drilling machine in coal mines. This system can provide attitude information of each measuri...

(This article belongs to the Topic Measurement Strategies and Standardization in Manufacturing)
  • Article
  • Open Access
104 Citations
11,453 Views
24 Pages

Automatic and Early Detection of Parkinson’s Disease by Analyzing Acoustic Signals Using Classification Algorithms Based on Recursive Feature Elimination Method

  • Khaled M. Alalayah,
  • Ebrahim Mohammed Senan,
  • Hany F. Atlam,
  • Ibrahim Abdulrab Ahmed and
  • Hamzeh Salameh Ahmad Shatnawi

Parkinson’s disease (PD) is a neurodegenerative condition generated by the dysfunction of brain cells and their 60–80% inability to produce dopamine, an organic chemical responsible for controlling a person’s movement. This conditio...

(This article belongs to the Special Issue Artificial Intelligence in Human Diseases: New Advances and Future Trends)
  • Article
  • Open Access
1 Citations
4,035 Views
17 Pages

20 February 2023

This paper presents a novel low-speed measuring method using analog sine and square waves of Hall effect speed sensors coupled with correlative digital signal processing algorithms packaged on a signal processing unit. The frequency of the initial si...

  • Article
  • Open Access
10 Citations
4,073 Views
19 Pages

9 January 2022

Nonnegative Tucker decomposition (NTD) is a robust method used for nonnegative multilinear feature extraction from nonnegative multi-way arrays. The standard version of NTD assumes that all of the observed data are accessible for batch processing. Ho...

(This article belongs to the Special Issue Advances in Symmetric Tensor Decomposition Methods)
  • Article
  • Open Access
381 Views
27 Pages

2 July 2026

Petrophysical parameters of rocks and ores, influenced by composition, porosity, temperature, and pressure, are generally distributed uniformly or continuously in space—relatively homogeneous within individual geological units and varying smoot...

  • Article
  • Open Access
27 Citations
4,863 Views
16 Pages

11 March 2023

Location information is one of the crucial and essential elements for monitoring data in wireless sensor networks. The distance vector-hop (DV-Hop) localization algorithm is of practical importance in improving its localization performance. To achiev...

  • Article
  • Open Access
4 Citations
1,576 Views
18 Pages

The Online Identification of the Behaviour of Pollutants inside the Tunnel Tube

  • Jozef Hrbček,
  • Juraj Ždánsky,
  • Dušan Nemec and
  • Marián Hruboš

13 October 2023

A tunnel tube is a relatively small space that allows for the accumulation of gaseous and liquid substances containing harmful substances. Given this fact, a ventilation system is the most critical component of a tunnel’s technological equipmen...

  • Article
  • Open Access
12 Citations
3,436 Views
30 Pages

25 June 2023

Impedance cardiography (ICG) is a low-cost, non-invasive technique that enables the clinical assessment of haemodynamic parameters, such as cardiac output and stroke volume (SV). Conventional ICG recordings are taken from the patient’s thorax....

(This article belongs to the Special Issue Advances in Biomedical Sensing, Instrumentation and Systems)
  • Article
  • Open Access
6 Citations
2,452 Views
13 Pages

A Fast Singular Boundary Method for the Acoustic Design Sensitivity Analysis of Arbitrary Two- and Three-Dimensional Structures

  • Liyuan Lan,
  • Suifu Cheng,
  • Xiatao Sun,
  • Weiwei Li and ,
  • Chao Yang and
  • Fajie Wang
  • + 1 author+ 0 author

16 October 2022

This paper proposes a fast meshless scheme for acoustic sensitivity analysis by using the Burton–Miller-type singular boundary method (BM-SBM) and recursive skeletonization factorization (RSF). The Burton–Miller formulation was adopted to...

(This article belongs to the Special Issue Numerical Simulation and Computational Methods in Engineering and Sciences)
  • Article
  • Open Access
2,608 Views
12 Pages

Habitat Destruction and Restoration in Relation to Extinction and Survival of Species in Competitive Communities

  • Kornphong Chonsiripong,
  • Eakkapong Duangdai,
  • Radom Pongvuthithum and
  • Chulin Likasiri

30 August 2022

We studied the N-species competitive coexistence model with direct effect on habitat destruction to analyze the behaviors of abundant and extinct species in the system caused by habitat loss. The nontrivial equilibrium points of the system are determ...

(This article belongs to the Topic Nonlinear Phenomena, Chaos, Control and Applications to Engineering and Science and Experimental Aspects of Complex Systems)
  • Article
  • Open Access
34 Citations
4,858 Views
16 Pages

31 May 2022

Model Predictive Control (MPC) based on Discrete Space Vector Modulation (DSVM) has the advantages of simple mathematical model and fast dynamic response. It is widely used in permanent magnet synchronous motor (PMSM). Additionally, the control perfo...

  • Article
  • Open Access
13 Citations
4,619 Views
16 Pages

1 November 2017

State-of-charge (SOC) estimations of Li-ion batteries have been the focus of many research studies in previous years. Many articles discussed the dynamic model’s parameters estimation of the Li-ion battery, where the fixed forgetting factor recursive...

  • Article
  • Open Access
62 Citations
16,453 Views
24 Pages

29 September 2023

The utilization of data mining techniques for the prompt prediction of academic success has gained significant importance in the current era. There is an increasing interest in utilizing these methodologies to forecast the academic performance of stu...

(This article belongs to the Section Artificial Intelligence)
  • Article
  • Open Access
558 Views
32 Pages

17 February 2026

In the field of modern power systems, power supply reliability has become a core indicator for measuring distribution network performance. It serves not only as a fundamental criterion for judging the continuous power supply capacity of distribution...

(This article belongs to the Section A1: Smart Grids and Microgrids)
  • Article
  • Open Access
16 Citations
3,034 Views
15 Pages

31 August 2023

The state-of-charge (SOC) estimation accuracy is closely associated with the estimation method and the battery parameter identification performance. The battery parameter identification method based on forgetting factor recursive least squares (FFRLS...

(This article belongs to the Topic Advances in Renewable Energy and Energy Storage)
  • Article
  • Open Access
12 Citations
4,420 Views
25 Pages

Adaptive Active Disturbance Rejection Control with Recursive Parameter Identification

  • Jacek Michalski,
  • Mikołaj Mrotek,
  • Marek Retinger and
  • Piotr Kozierski

This paper presents a new adaptive modification of active disturbance rejection control (ADRC) with parameter estimation based on a recursive least-squares (RLS) method. The common ADRC used in many applications relies on the simple approach, which a...

(This article belongs to the Special Issue Design and Control of Drives and Electrical Machines)
  • Article
  • Open Access
948 Views
15 Pages

Variable Forgetting Factor RLS Adaptive Algorithms Based on Line Search Methods

  • Radu-Andrei Otopeleanu,
  • Cristian-Lucian Stanciu,
  • Constantin Paleologu and
  • Jacob Benesty

9 May 2026

Recursive least-squares (RLS) adaptive algorithms are capable of outperforming least-mean-square (LMS) methods for the identification of long-length impulse responses due to their ability to mitigate the high correlation properties of input signals,...

(This article belongs to the Special Issue Advancements in Digital Signal Processing: Emerging Applications and Optimized Implementations)
  • Article
  • Open Access
74 Citations
8,400 Views
26 Pages

24 April 2019

This paper deals with the use of least mean squares (LMS, NLMS) and recursive least squares (RLS) algorithms for total harmonic distortion (THD) reduction using shunt active power filter (SAPF) control. The article presents a pilot study necessary fo...

  • Article
  • Open Access
1 Citations
2,048 Views
20 Pages

Dynamics of Interacting Colloidal Particles Using the IIR Recursive Digital Filter Method

  • Driss Lahboub,
  • Rodolphe Heyd,
  • Mohamed Lotfi,
  • Abderrahim Bakak and
  • Abdelaziz Koumina

28 June 2024

This paper focuses on the numerical study of spherical particle sedimentation, taking into account hydrodynamic interactions. Infinite impulse response (IIR) digital filters, specially tailored to solve the sedimentation dynamics, were used in the pr...

  • Article
  • Open Access
28 Citations
4,532 Views
15 Pages

2 April 2024

The timely monitoring of urban water bodies using unmanned aerial vehicle (UAV)-mounted remote sensing technology is crucial for urban water resource protection and management. Addressing the limitations of the use of satellite data in inferring the...

  • Article
  • Open Access
1,060 Views
29 Pages

Emotion recognition plays a crucial role in human–computer interaction and mental health applications. Traditional Electroencephalogram (EEG)-based emotion recognition methods are limited in classification accuracy due to their neglect of the s...

(This article belongs to the Section Computational Neuroscience, Neuroinformatics, and Neurocomputing)
  • Article
  • Open Access
1 Citations
6,478 Views
14 Pages

17 August 2016

Spatially coupled low-density parity-check (LDPC) codes have attracted considerable attention due to their promising performance. Recursive encoding of the codes with low delay and low complexity has been proposed in the literature but with constrain...

(This article belongs to the Section Information Theory, Probability and Statistics)
  • Article
  • Open Access
3 Citations
3,097 Views
14 Pages

Comparison of Two Convergence Criterion in the Optimization Process Using a Recursive Method in a Multi-Reservoir System

  • Rosalva Mendoza-Ramírez,
  • Rodolfo Silva,
  • Ramón Domínguez-Mora,
  • Eduardo Juan-Diego and
  • Eliseo Carrizosa-Elizondo

21 September 2022

Stochastic dynamic programming (SDP) is an optimization technique used in the operation of reservoirs for many years. However, being an iterative method requiring considerable computational time, it is important to establish adequate convergence crit...

(This article belongs to the Special Issue Using Artificial Intelligence for Smart Water Management)
  • Article
  • Open Access
9 Citations
3,969 Views
17 Pages

8 September 2019

Aiming at the problems that current predicting models are incapable of extracting the inner rule of the traffic flow sequence in traffic big data, and unable to make full use of the spatio-temporal relationship of the traffic flow to improve the accu...

(This article belongs to the Special Issue Intelligent Transportation Systems (ITS))
  • Article
  • Open Access
15 Citations
4,252 Views
24 Pages

Cardiotocography (CTG), which measures the fetal heart rate (FHR) and maternal uterine contractions (UC) simultaneously, is used for monitoring fetal well-being during delivery or antenatally at the third trimester. Baseline FHR and its response to u...

(This article belongs to the Section Machine Learning and Artificial Intelligence in Diagnostics)
  • Article
  • Open Access
813 Views
23 Pages

A Configuration Optimization Method Based on Decoupled Recursive Strategy for Distributed UAV SAR 3D Imaging System

  • Chaodong Wang,
  • Die Hu,
  • Zhongyu Li,
  • Hongyang An and ,
  • Zhichao Sun,
  • Junjie Wu and
  • Jianyu Yang
  • + 2 authors+ 0 author

17 February 2026

Compared with conventional synthetic aperture radar (SAR) three-dimensional (3D) imaging systems, distributed unmanned aerial vehicle (UAV) SAR systems offer enhanced flexibility and single-pass capability, enabling rapid 3D imaging. Their performanc...

  • Article
  • Open Access
11 Citations
7,208 Views
15 Pages

10 November 2020

Ultra-large-scale matrix inversion has been applied as the fundamental operation of numerous domains, owing to the growth of big data and matrix applications. Using cryptography as an example, the solution of ultra-large-scale linear equations over f...

(This article belongs to the Special Issue Cyberspace Security, Privacy & Forensics)
  • Article
  • Open Access
1 Citations
1,956 Views
27 Pages

22 April 2024

This study introduces an innovative approach for the reconstruction of wind turbine tower states using a tangential recursion algorithm. The primary objective is to enable real-time monitoring of the operational condition of wind turbine towers. The...

(This article belongs to the Section A3: Wind, Wave and Tidal Energy)
  • Review
  • Open Access
247 Views
25 Pages

22 October 2026

This review surveys the mathematical theory and methods of state estimation for stochastic dynamical systems when the Gaussian-linear-least-squares paradigm fails, focusing on the role of sparsity-promoting and constraint-encoding regularization. The...

  • Article
  • Open Access
6 Citations
3,950 Views
19 Pages

30 October 2021

Evoked and spontaneous K-complexes are thought to be involved in sleep protection, but their role as biomarkers is still under debate. K-complexes have two major functions: first, they suppress cortical arousal in response to stimuli that the sleepin...

(This article belongs to the Special Issue Advances in Sleep Monitoring Sensors, Devices, and Computational Technologies)
  • Article
  • Open Access
3 Citations
1,034 Views
31 Pages

Fuzzy Adaptive Impedance Control Method for Underwater Manipulators Based on Bayesian Recursive Least Squares and Displacement Correction

  • Baoju Wu,
  • Xinyu Liu,
  • Nanmu Hui,
  • Yan Huo and ,
  • Jiaxiang Zheng and
  • Changjin Dong
  • + 1 author+ 0 author

28 December 2025

During constant-force operations in complex marine environments, underwater manipulators are affected by hydrodynamic disturbances and unknown, time-varying environment stiffness. Under classical impedance control (IC), this often leads to large tran...

(This article belongs to the Section Automation and Control Systems)
  • Article
  • Open Access
8 Citations
5,830 Views
15 Pages

Landslides are one of the critical natural hazards that cause human, infrastructure, and economic losses. Risk of catastrophic losses due to landslides is significant given sprawled urban development near steep slopes and the increasing proximity of...

  • Article
  • Open Access
4 Citations
4,836 Views
16 Pages

5 May 2024

Elastin-like polypeptides (ELPs) are popular biomaterials due to their reversible, temperature-dependent phase separation and their tunability, which is achievable by evolving procedures in recombinant technology. In particular, recursive direction l...

  • Feature Paper
  • Article
  • Open Access
3 Citations
2,236 Views
35 Pages

3 August 2024

A new numerical method for solving Volterra linear convolution integral equations (CVIEs) of the second kind is presented in this work. This new approach uses first-order infinite impulse response digital filters method (IIRFM). Three convolutive ker...

(This article belongs to the Special Issue Recent Advances in Theoretical and Numerical Analysis for Fractional and Integral Differential Equations)
  • Article
  • Open Access
200 Citations
14,488 Views
23 Pages

The frequency of cyber-attacks on the Internet of Things (IoT) networks has significantly increased in recent years. Anomaly-based network intrusion detection systems (NIDSs) offer an additional layer of network protection by detecting and reporting...

  • Article
  • Open Access
6 Citations
4,177 Views
12 Pages

Reducing the Computational Time for the Kemeny Method by Exploiting Condorcet Properties

  • Noelia Rico,
  • Camino R. Vela,
  • Raúl Pérez-Fernández and
  • Irene Díaz

15 June 2021

Preference aggregation and in particular ranking aggregation are mainly studied by the field of social choice theory but extensively applied in a variety of contexts. Among the most prominent methods for ranking aggregation, the Kemeny method has bee...

(This article belongs to the Special Issue Advances in Multiple Criteria Decision Analysis)
  • Article
  • Open Access
11 Citations
2,594 Views
11 Pages

Nonlinear Vibration of Electrostatically Actuated Microbeam

  • Gamal M. Ismail,
  • Md. Alal Hosen,
  • Mostafa Mohammadian,
  • Maha M. El-Moshneb and
  • Mahmoud Bayat

15 December 2022

In this paper, an analytical technique based on the global residue harmonic balance method (GRHBM) is applied in order to obtain higher-order approximate analytical solutions of an electrostatically actuated micro-beam. To illustrate the applicabilit...

(This article belongs to the Special Issue Nonlinear Vibration Theory and Mechanical Dynamics)
  • Article
  • Open Access
3 Citations
9,665 Views
29 Pages

On the Élö–Runyan–Poisson–Pearson Method to Forecast Football Matches

  • José Daniel López-Barrientos,
  • Damián Alejandro Zayat-Niño,
  • Eric Xavier Hernández-Prado and
  • Yolanda Estudillo-Bravo

3 December 2022

This is a work about football. In it, we depart from two well-known approaches to forecast the outcome of a football match (or even a full tournament) and take advantage of their strengths to develop a new method of prediction. We illustrate the &Eac...

(This article belongs to the Special Issue Probability, Statistics and Their Applications 2021)
  • Review
  • Open Access
14 Citations
9,089 Views
38 Pages

A Review of Solution Stabilization Techniques for RANS CFD Solvers

  • Shenren Xu,
  • Jiazi Zhao,
  • Hangkong Wu,
  • Sen Zhang and ,
  • Jens-Dominik Müller,
  • Huang Huang,
  • Mohammad Rahmati and
  • Dingxi Wang
  • + 3 authors+ 0 author

26 February 2023

Nonlinear, time-linearized and adjoint Reynolds-averaged Navier-Stokes (RANS) computational fluid dynamics (CFD) solvers are widely used to assess and improve the aerodynamic and aeroelastic performance of aircrafts and turbomachines. While RANS CFD...

(This article belongs to the Special Issue Adjoint Method for Aerodynamic Design and Other Applications in CFD)
  • Article
  • Open Access
2 Citations
1,900 Views
8 Pages

29 May 2023

Let b be an odd number. By using elementary methods, we prove that: (1) When x is an odd number and y is an even number, the Diophantine equation (2x−1)(by−1)=2z2 has no positive integer solution except when b is two special types of odd...

(This article belongs to the Section E1: Mathematics and Computer Science)
  • Article
  • Open Access
1,124 Views
14 Pages

Controlled Fault Current Interruption Scheme for Improved Fault Prediction Accuracy

  • Xu Yang,
  • Qi Long,
  • Hao Li,
  • Dachao Huang and ,
  • Shupeng Xue,
  • Jiajie Huang,
  • Hongzhang Liang and
  • Xiongying Duan
  • + 3 authors+ 0 author

13 March 2025

To enhance the accuracy and efficiency of controlled fault current interruption (CFI) in short-circuit current processing within power systems, a half-cycle elimination prediction algorithm and a double-sampling CFI sequence method are proposed in th...

(This article belongs to the Special Issue Monitoring, Diagnosis, Analysis, and Control of Stability in Power Systems)
  • Article
  • Open Access
418 Views
36 Pages

Long-Term Performance Assessment of Statistical and Machine Learning Models for Temperature Forecasting in Gulf of Mexico and Atlantic-Transition Coastal Cities

  • Juan Frausto-Solís,
  • José Christian de Jesús Galicia-González,
  • Juan Javier González-Barbosa,
  • Guadalupe Castilla-Valdez and
  • Juan Paulo Sánchez Hernández

Accurate long-term monthly temperature outlooks are vital for climate risk planning in the Gulf of Mexico and Atlantic-Transition. This study addresses the gap in comparisons between classical and machine learning methods by analyzing twenty-eight ye...

(This article belongs to the Special Issue Numerical and Evolutionary Optimization 2025)

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