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4141
Computer Simulation Tests of Feedback Error Learning Controller with IDM and ISM for Functional Electrical Stimulation in Wrist Joint Control
Published 2010-01-01“…The simple ISM learning method and the FEL-FES controller using the ISM would be useful in controlling the musculoskeletal system that has nonlinear characteristics to electrical stimulation and therefore is expected to be useful in applying to hybrid FES system using powered orthotic device.…”
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4142
Assessment of Design and Retrofitting Solutions on the Progressive Collapse of Hongqi Bridge
Published 2020-01-01“…In this study, progressive collapse of Hongqi Bridge was investigated using nonlinear dynamic analysis in the Applied Element Method, which has been proven as one of the best methods that can follow the collapse behavior of structures. …”
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4143
Quantitative functional calculus in Sobolev spaces
Published 2004-01-01“…In the frame work of Sobolev (Bessel potential) spaces Hn(Rd,R or C), we consider the nonlinear Nemytskij operator sending a function x∈Rd↦f(x) into a composite function x∈Rd↦G(f(x),x). …”
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4144
Statistical Analysis of the Tensile Strength of Coal Fly Ash Concrete with Fibers Using Central Composite Design
Published 2015-01-01“…Using analysis of variance, the order of importance of the variables was established for each property (flexural strength and split tensile strength). From the nonlinear response surfaces, it was found that higher values of flexural strength were obtained for fibers longer than 12 mm and at a dosage of 1-2%. …”
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4145
Logarithmic sensitivity ratio elucidates thermal transport physics in multivariate thermoreflectance experiments
Published 2025-01-01“…We mathematically derived a sensitivity-based method that identifies the thermal transport physics and parameters suitable for multivariate nonlinear fits in a frequency-domain thermoreflectance (FDTR) experiment. …”
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4146
The Adjustment of Covariates in Cox’s Model under Case-Cohort Design
Published 2020-01-01“…According to the existing adjustable methods of distorted covariates for linear and nonlinear models, we propose estimating the distorting functions by nonparametrically regressing the distorted covariates on the distorting factors; then, the estimators for the parameters are obtained using the estimated covariates. …”
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4147
Robustness Analysis of Control Laws in Complex Dynamical Networks Evoked by Deviating Argument
Published 2022-01-01“…We design two categories of control laws (linear control law and nonlinear control law) for the undisturbed CDNs to achieve exponential synchronization. …”
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4148
Serotonergic Dysfunction in Parkinson's Disease and Its Relevance to Disability
Published 2011-01-01“…With the use of in vivo positron emission tomography functional imaging, it has been shown that serotonergic terminals are affected at a varying, nonlinear degree starting early in the clinical course of Parkinson's disease. …”
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4149
Design of Robust Adaptive Observer against Measurement Noise for Sensorless Vector Control of Induction Motor Drives
Published 2020-01-01“…This technique ensures the stability of the induction motor considered as nonlinear dynamic system. Since the Luenberger observer works on deterministic environment, and it is most effective when sensor noise is limited, the present study aims to design a robust observer insensitive to measurement noise and parametric variation integrated in a cascade structure. …”
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4150
Lamb Waves in a Functionally Graded Composite Plate with Nonintegral Power Function Volume Fractions
Published 2015-01-01“…The numerical results reveal that the dispersion properties in some regions are changed by the graded property, the phase velocity varies in a nonlinear manner with the gradient coefficient, nondispersion frequency exists in the first mode, and the set of cutoff frequencies is a union of two series of approximate arithmetic progressions. …”
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4151
A 0.69-mW Subsampling NB-IoT Receiver Employing a Linearized <italic>Q</italic>-Boosted LNA
Published 2024-01-01“…A direct-coupling derivative superposition technique where low-<inline-formula> <tex-math notation="LaTeX">$V_{t}$ </tex-math></inline-formula> and thick-gate transistors with opposite nonlinear characteristics are combined to improve the measured IIP3 by 7 dB to −18 dBm with little NF overhead. …”
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4152
Energy-Efficient Train Operation Using Nature-Inspired Algorithms
Published 2017-01-01“…The optimization process results in switching points that initiate cruising and coasting phases of the driving. Due to nonlinear optimization formulation of the problem, nature-inspired evolutionary search methods, Genetic Simulated Annealing, Firefly, and Big Bang-Big Crunch algorithms were employed in this study. …”
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4153
A Mathematical Algorithm of Locomotive Source Localization Based on Hyperbolic Technique
Published 2015-10-01“…However, estimating the location of an emitter based on hyperbolic measurements is a highly nonlinear problem with inconsistent data, which are created due to the measurement noise, the deviation between assumption model and actual field of the velocity, and so forth. …”
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4154
The Shock Characteristics of Tilted Support Spring Packaging System with Critical Components
Published 2014-01-01“…The nonlinear dynamical equations of tilted support spring packaging system with critical components were obtained under the action of half-sine pulse. …”
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4155
Analysis and Prediction of Body Test Results Based on Improved Backpropagation Neural Network Algorithm
Published 2022-01-01“…Based on BP neural network, an algorithm for predicting students’ endurance performance is proposed, which is applied to the sunshine long-distance intelligent sports testing system at Hangzhou Dianzi University. The nonlinear relationship between students’ performance in sunshine running and endurance performance is determined, and students’ performance in sunshine running is used to predict their endurance performance the following year. …”
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4156
Hydraulic Simulation of Leakage in Post-Earthquake Water Supply Pipeline Network and Its Algorithm Improvement
Published 2022-01-01“…The linear search and backtracking algorithm was used to control the iterative step size of the nonlinear equations of the pipe network nodes, which ensures the global convergence of the low-pressure hydraulic analysis of the pipe network.…”
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4157
Relationship between Urban Innovation Capability and Energy Utilization Efficiency: An Empirical Study of 281 Prefecture-Level Cities in China
Published 2022-01-01“…Following a dynamic nonlinear perspective, this study explores the relationship between urban innovation capability and energy utilization efficiency by employing the Panel Vector Autoregression (PVAR) and Dynamic Panel Threshold Regression (DPTR) methods. …”
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4158
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4159
Fixed-Time Trajectory Tracking Control of Autonomous Surface Vehicle with Model Uncertainties and Disturbances
Published 2020-01-01“…By combining the FTDO and ISMC techniques, a new control scheme (FTDO-ISMC) is developed, which can achieve both disturbance compensation and chattering-free condition. (3) Aiming at reconstructing the unknown nonlinear dynamics and external disturbances, a fixed-time unknown observer (FTUO) is proposed, thus providing the FTUO-ISMC scheme that finally achieves trajectory tracking of ASVs with unknown parameters. …”
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4160
A Novel Picture Fuzzy n-Banach Space with Some New Contractive Conditions and Their Fixed Point Results
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