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2521
FSE-RBFNN-Based AILC of Finite Time Complete Tracking for a Class of Time-Varying NPNL Systems with Initial State Errors
Published 2024-01-01“…Addressing the difficulty of nonlinear parameterization terms in system models, a new function approximator (FSE-RBFNN) which is combined with radial basis function neural network (RBFNN) and Fourier series expansion (FSE) is introduced to model each time-varying nonlinear parameterization function. …”
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2522
Analysis on Forced Vibration of Thin-Wall Cylindrical Shell with Nonlinear Boundary Condition
Published 2016-01-01“…The nonlinear boundary was modeled as supported clearance in one end of shell and the restraint was assumed as linearly elastic in the radial direction. Based on Sanders’ shell theory, Lagrange equation was utilized to derive the nonlinear governing equations of cylindrical shell. …”
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2523
Neural Network-Based Nonlinear Fixed-Time Adaptive Practical Tracking Control for Quadrotor Unmanned Aerial Vehicles
Published 2020-01-01“…First, by combining the radial basis function neural networks (NNs) with virtual parameter estimating algorithms, a NN adaptive control scheme is developed for UAVs. …”
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2524
Dendrochronological analysis of coniferous trees in avalanche paths of Central Altai (Chuya River basin)
Published 2024-12-01“…The performed dendrochronological analysis of the radial growth of coniferous trees in the avalanche paths of the Chuya River basin (Central Altai) has enabled to define the patterns of avalanche activity in the studied starting zones and the frequency of high-magnitude snow avalanches. …”
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2525
Tolerance Fit Based Lubrication Clearance Design for Sliding Bearings in High Power Wind Turbine Gearboxes
Published 2024-01-01“…The reasonable design of wind power sliding bearings is of particular importance in the increasingly widespread use of them in high-power wind turbine gearbox applications. The sliding bearing radial clearance (<italic>h</italic><sub>0</sub>) is a significant parameter that reflects the sliding bearing's performance. …”
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2526
Redistribution of Nodes with Two Constraints in Meshless Method of Line to Time-Dependent Partial Differential Equations
Published 2015-01-01“…These avoid the ill-conditioning in applying radial basis functions. Moreover, to generate more smooth adaptive meshes another modification is investigated, such as using modified arc-length monitor function in Equidistribution algorithm. …”
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2527
Research on Dynamic Characteristics of the Engine Front-end Accessory Drive System
Published 2024-03-01“…Considering the effects of time-varying load, time-varying excitation, longitudinal stiffness, radial stiffness and bending stiffness of each pulley, the dynamic analysis model of the inner and outer engine front-end accessory drive system is established by Simdrive software. …”
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2528
Modeling and Stochastic Model Updating of Bolt-Jointed Structure
Published 2018-01-01“…A hierarchical model updating strategy based on Bayesian inference is applied to identify the unknown parameters in the substructures model and those in the overall model. Radial basis function (RBF) models are used as surrogates of time-consuming finite element model with high resolution to avoid the enormous computational cost. …”
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2529
Constraints on the Dark Side of the Universe and Observational Hubble Parameter Data
Published 2010-01-01“…Currently, there are two major methods of independent observational H(z) measurement, which we summarize as the “differential age method” and the “radial BAO size method.” Starting with fundamental cosmological notions such as the spacetime coordinates in an expanding universe, we present the basic principles behind the two methods. …”
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2530
Analysis and Optimization of Machining Process of Thin-wall Gear Ring of Planetary Reducer
Published 2022-02-01“…Aiming at the requirements of large radial size, large load-bearing load and high precision of the thin-walled gear ring of a planetary reducer for a high-altitude rescue vehicle, the deformation of the thin-walled gear ring during processing and heat treatment is analyzed, and the cause of the deformation of the workpiece is found. …”
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2531
Prescribed Performance Neural Control of Strict-Feedback Systems via Disturbance Observers
Published 2020-01-01“…To guarantee that the tracking error meets a design prescribed performance boundary (PPB) condition, an improved prescribed performance function is introduced. And radial basis function neural networks (RBFNNs) are used to approximate nonlinear functions, while second-order filters are employed to eliminate the “explosion-complexity” problem inherent in the existing method. …”
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2532
A Mathematical Model for Peristaltic Transport of Micro-Polar Fluids
Published 2011-01-01“…A mathematical model has been constructed for peristaltic transport of micro-polar fluid in a circular cylindrical tube of finite length by letting sinusoidal waves propagate along the wall that induce contraction and relaxation but not expansion beyond the natural boundary. Axial and radial velocities and micro-rotation components are formulated for micro-polar fluid transportations by applying the method of long wavelength and low Reynolds number approximations in the analysis. …”
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2533
Study on the Effect of the Groove Surface on Clutch Engagement Character
Published 2017-01-01“…The compound groove texture can reduce vibration efficiently,radial groove texture can eliminate vibration efficiently,while the ring groove texture can’t reduce continuous vibration. …”
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2534
Modeling of River Sediment Estimation Using Artificial Neural Network Method (Case Study: Vanai River)
Published 2022-09-01“…In the following, multivariate linear regression, multilevel prefabricated neural network (MLP) and radial function-based neural network (RBF) models are used to model sediment estimation. …”
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2535
An Algorithm Using DBSCAN to Solve the Velocity Dealiasing Problem
Published 2021-01-01“…Velocity dealiasing is an essential task for correcting the radial velocity data collected by Doppler radar. To improve the accuracy of velocity dealiasing, traditional dealiasing algorithms usually set a series of empirical thresholds, combine three- or four-dimensional data, or introduce other observation data as a reference. …”
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2536
Finite-Time Antisaturation Tracking Control for Hypersonic Vehicle with Uncertain Dynamics
Published 2020-01-01“…The minimum learning parameter algorithm based on a radial basis function is employed to approximate the unknown dynamics with low computational burden. …”
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2537
Tooth Profile Modification Method and Life Prediction Analysis of Cup Type Harmonic Reducers
Published 2024-10-01“…The theory of the radial deformation generated by the assembly of the flexwheel and the wave generator of the cup harmonic reducer is inconsistent with the practice, and the tooth meshing interferes between the flexwheel and the rigid wheel. …”
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2538
Doppler cross-correlation spectroscopy as a path to the detection of Earth-like planets
Published 2023-06-01“…This idea improved the efficiency of radial velocity measurements by a factor of over 1000. …”
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2539
Determination of Damage in Reinforced Concrete Frames with Shear Walls Using Self-Organizing Feature Map
Published 2017-01-01“…The obtained model was compared with linear regression (LR) and nonlinear regression (NonLR) models and also the radial basis function (RBF) of a neural network. It was concluded that the SOFM, when optimized with the GA, has more strength, flexibility, and accuracy.…”
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2540
Adaptive Neural Sliding Mode Control of Active Power Filter
Published 2013-01-01“…A radial basis function (RBF) neural network adaptive sliding mode control system is developed for the current compensation control of three-phase active power filter (APF). …”
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