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281
Creep Model of Weakly Cemented Soft Rock Considering Damage and Secondary Development in FLAC3D
Published 2025-04-01“…The time-dependent deformation control of weakly cemented soft rock in deep underground engineering is a critical scientific issue that directly affects the long-term stability of roadways. …”
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282
Comparison of principal component analysis algorithms for imputation in agrometeorological data in high dimension and reduced sample size.
Published 2024-01-01“…However, temporal records often encounter issues such as missing measurements. The aim of this study was to evaluate the performance of alternative multivariate procedures for principal component analysis (PCA), using the Nonlinear Iterative Partial Least Squares (NIPALS) and Expectation-Maximization (EM) algorithms, for imputing missing data in time series of meteorological variables. …”
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283
Multi-input PINN Surrogate Model for Digital Twin of Lead-cooled Fast Reactor Main Pump
Published 2025-05-01“…Currently, the design of MCP for LFR heavily relies on extensive numerical simulations, requiring the generation of high-quality meshes and the discretization of governing equations for computation. …”
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284
Remaining useful life prediction of a small sample of aero-engine based on an improved gray Markov model
Published 2025-06-01“…Second, a gray-Markov hybrid model is developed to capture nonlinear wear dynamics, where polynomial fitting simulates accelerated failure modes in late life. …”
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285
Verification of fast ion and rotation effects on turbulence through comparison of GENE and CGYRO with L-mode plasmas in KSTAR
Published 2025-01-01“…Phys. 324 73–93), using L-mode plasma profiles from KSTAR for local linear and nonlinear electromagnetic simulations. The focus is on the impact of fast ions and rotation effects on energy flux, aiming to identify the similarities and differences between these codes in the context of turbulence transport research. …”
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286
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287
Reservoir parameter prediction technology based on deep learning and its application in the Panyu 4 Sag, Pearl river mouth Bain
Published 2025-04-01“…To address this issue, this paper proposes a method using a convolutional neural network for predicting porosity and facies distribution. …”
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288
Adaptive speed control of BLDC motors for enhanced electric vehicle performance using fuzzy logic
Published 2025-04-01“…A state-space modelling technique for the BLDC motor is used in this study to address these issues, incorporating a Fuzzy Logic Controller (FLC) for accurate speed control. …”
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289
Underwater Manipulator Linear Active Disturbance Rejection Control Based on Hierarchical Cascaded Linear Extended State Observer
Published 2024-01-01“…Addressing the challenges of strong coupling, nonlinearity, and time-varying characteristics in underwater manipulator systems, along with the inevitable environmental disturbances such as gravity, buoyancy, and hydrodynamic forces that reduce system state convergence speed and affect control performance, an underwater manipulator dynamic model integrating the Lagrange equation, Morison equation, and nonlinear friction forces is built. …”
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290
A Distributed Collaborative Navigation Strategy Based on Adaptive Extended Kalman Filter Integrated Positioning and Model Predictive Control for Global Navigation Satellite System/...
Published 2025-02-01“…Finally, the efficacy of this strategy is confirmed through detailed simulations and robotic experiments. The simulation results for cooperative localization demonstrate that DAEKF outperforms Kalman Filter (KF) and Extended Kalman Filter (EKF) in terms of localization accuracy. …”
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291
Sheath Voltage Limiter Defects Detection Method Based on Harmonic Phasor Differences of Sheath Current for Cross-Bonded HV Cable
Published 2025-01-01“…By establishing a frequency-domain equivalent model of cross-bonded HV cables combined with SVL nonlinear resistance characteristics, harmonic currents under defect conditions are treated as harmonic sources injected into the sheath loop. …”
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292
Motion Control Study of Two-legged Wheeled Robot
Published 2024-09-01“…At the same time, it has control difficulties such as underdrive, strong coupling, and nonlinearity. These challenges lead to difficulties in achieving effective motion control and self-balancing of the robot. …”
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293
Distributed networked localization using neighboring distances only through a computational topology control approach
Published 2020-03-01“…For large-scale wireless sensor networks, the nonlinear localization problem where only neighboring distances are available to each individual sensor nodes have been attracting great research attention. …”
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294
Evaluation of Decay Times from Noisy Room Responses with Pure-Tone Excitation
Published 2013-03-01“…However, in real conditions a sound decay is often deformed by background noise, thus a precise evaluation of decay times from noisy room responses is the main problem. In this paper this issue is examined by means of numerical method where the decay times are estimated from the decay function that has been determined by nonlinear polynomial regression from a pressure envelope obtained via the discrete Hilbert transform. …”
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295
Controller Design for Roll Motion of a Planing Hull From a Safe Transportation Perspective
Published 2020-05-01“…The issue of safe navigation in the maritime sector is becoming more important day by day. …”
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296
Research on End-Effector Position Error Compensation of Industrial Robotic Arm Based on ECOA-BP
Published 2025-01-01“…Industrial robotic arms are often subject to significant end-effector pose deviations from the target position due to the combined effects of nonlinear deformations such as link flexibility, joint compliance, and end-effector load. …”
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297
Exploring New Boundaries to Mitigate Structural Vibrations of Bridges in Seismic Regions: A Smart Passive Strategy
Published 2016-01-01“…It is based on the results of several nonlinear dynamic simulations performed using natural earthquakes and on the use of a multicriteria decision-making procedure. …”
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298
Comprehensive Phasor Domain Short Circuit Analysis of Bulk Power Transmission Systems in Presence of Inverter-Based Resources
Published 2025-01-01“…However, due to the highly nonlinear, current-limited, and proprietary behavior of controllers dictating the response of renewable sources to faults in the power grid, this model breaks down. …”
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299
Impact of Wall Impedance Phase Angle on Indoor Sound Field and Reverberation Parameters Derived from Room Impulse Response
Published 2022-09-01“…This effect was found to be due to a change in modal frequencies as a result of an increase or decrease in the phase angle. Simulations have demonstrated that surface distributions of decay times are highly irregular, while a much greater range of the early decay time compared to the reverberation time range indicates that a decay curve is nonlinear. …”
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300
A Practical Short-Circuit Current Calculation Method for Renewable Energy Plants Based on Single-Machine Multiplication
Published 2025-02-01“…Due to the current-limiting feature of inverters, the voltage and current demonstrate a strong nonlinearity. As a result, the short-circuit current (SCC) of N-SMSs is commonly calculated using iterative methods. …”
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