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4361
Multiscale Permutation Entropy Based Rolling Bearing Fault Diagnosis
Published 2014-01-01“…Thus, the definition of MPE is introduced and employed to extract the nonlinear fault characteristics from the bearing vibration signal in different scales. …”
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4362
Effect of Process Parameters on Short Fiber Orientation along the Melt Flow Direction in Water-Assisted Injection Molded Part
Published 2019-01-01“…An artificial neural network was used to establish the nonlinear agent model between the process parameters and A11 representing the fiber orientation in melt flow direction. …”
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4363
The Research on Improved Companding Transformation for Reducing PAPR in Underwater Acoustic OFDM Communication System
Published 2016-01-01“…To solve the problem of the high peak-to-average power ratio (PAPR) in Orthogonal Frequency Division Multiplexing (OFDM) for the underwater acoustic communication system, the paper offers a method of reducing PAPR which combines the amplitude limiting and the improved nonlinear transformation. Traditional amplitude limiting technique can reduce PAPR in OFDM system effectively, at the cost of reducing the bit error rate (BER). …”
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4364
A Short Turning Strategy for Train Scheduling Optimization in an Urban Rail Transit Line: The Case of Beijing Subway Line 4
Published 2018-01-01“…First, we develop a mixed integer nonlinear programming (MINLP) model for the train scheduling, where short turning train services and full-length train services are optimized based on the predefined headway obtained by the passenger demand analysis. …”
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4365
On Oscillations and Noise in Multicomponent Adsorption: The Nature of Multiple Stationary States
Published 2019-01-01“…Starting from the fact that monocomponent adsorption, whether modeled by Lagergren or nonlinear Riccati equation, does not sustain oscillations, we speculate about the nature of multiple steady state states in multicomponent adsorption with second-order kinetics and about the possibility that multicomponent adsorption might exhibit oscillating behavior, in order to provide a tool for better discerning possible oscillations from inevitable fluctuations in experimental results or a tool for a better control of adsorption process far from equilibrium. …”
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4366
FEA Simulation of the Biomechanical Structure Overload in the University Campus Planting
Published 2020-01-01“…Static simulation of the tree loading is provided both in the linear formulation and in the geometrically nonlinear one. It is proved that in the trunk-branch junction area the stresses are twice lower than the branch itself, and it is not the place for fracture. …”
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4367
The approximate lag and anticipating synchronization between two unidirectionally coupled Hindmarsh-Rose neurons with uncertain parameters
Published 2024-10-01“…This study provides a novel perspective for comprehending neural processes and the advantageous attributes inherent in nonlinear and chaotic systems.…”
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4368
Effect of the sintering temperature on the electrical properties of Y–Al‐doped ZnO varistors
Published 2025-01-01“…Through C--V characteristic testing, X‐ray diffraction and energy dispersive X‐ray spectroscopy analysis, it was found that the increase in sintering temperature promoted the formation of interface negative charge and defect reactions by Y3+, increasing Ni and Nd; Al3+ tends to aggregate in the grain area, further increasing Nd; the volatilization of Bi3+ gradually increases, causing a decrease in Ni; the Φb first increases and then decreases with the changes in Ni and Nd, resulting in a U‐shaped variation characteristic of the nonlinear coefficient and leakage current density. …”
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4369
Fault Identification of Rolling Bearing Using Variational Mode Decomposition Multiscale Permutation Entropy and Adaptive GG Clustering
Published 2021-01-01“…The nonlinear and nonstationary characteristics of vibration signal in mechanical equipment make fault identification difficult. …”
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4370
Thermal effects of AISI 304-L stainless steel after laser irradiation
Published 2023-12-01“…The selection of welding parameters of the L-DED system is critical for obtaining the desired results in metal deposition, however, due to its intrinsic nonlinear behavior in the process, the suitable choices need to be investigated. …”
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4371
Static and Dynamic Tensile Mechanical Behavior of Polyvinyl Chloride Elastomers with Different Shore Hardness
Published 2021-01-01“…It has substantial sensitivity to strain rate and viscoelastic mechanical characteristics under the action of dynamic tensile load. The Zhu–Wang–Tang nonlinear viscoelastic constitutive model is used to characterize the viscoelastic mechanical characteristics with small error. …”
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4372
CNN-Trans-SPP: A small Transformer with CNN for stock price prediction
Published 2024-12-01“…Deep learning models offer a more robust solution to nonlinear problems compared to traditional algorithms. …”
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4373
Different Meta-Heuristic Optimized Radial Basis Function Neural Network Models for Short-Term Power Consumption Forecasting
Published 2024-06-01“…Power consumption data, being nonstationary and nonlinear, is significantly affected by factors such as seasons and holidays, making traditional computational methods time-consuming and less accurate. …”
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4374
Design of an Improved Hybrid FTC for Faults in Aero-Engine Closed-Loop Control System
Published 2021-01-01“…The improved hybrid FTC structure combined with the nonlinear thermodynamic component-level (NCL) model-based estimation method merges fault estimation of actuators/sensors and typical components’ degradation estimation process into the FTC process. …”
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4375
Lie and Riccati Linearization of a Class of Liénard Type Equations
Published 2012-01-01“…We construct a linearizing Riccati transformation by using an ansatz and a linearizing point transformation utilizing the Lie point symmetry generators for a three-parameter class of Liénard type nonlinear second-order ordinary differential equations. …”
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4376
Constant Force PID Control for Robotic Manipulator Based on Fuzzy Neural Network Algorithm
Published 2020-01-01“…It is difficult for the traditional PID controller because of the complexity parameters and nonlinear characteristics. In order to overcome this issue, a PID controller based on fuzzy neural network algorithm is developed in this paper for tracking the trajectory and contact constant force simultaneously. …”
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4377
A Near-Zero Energy Smart Greenhouse Integrated Into a Microgrid for Sustainable Energy and Microclimate Management
Published 2025-01-01“…Within this framework, a Nonlinear Model Predictive Control (NMPC) and an Extended Kalman Filter (EKF) are employed to regulate critical microclimate parameters such as temperature, relative humidity, CO2 concentration, and lighting intensity, while optimally managing energy storage to reduce grid power imports. …”
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4378
Leishmaniasis and Climate Change—Case Study: Argentina
Published 2012-01-01“…Therefore, from the perspective of public health and state policy, and taking into account the current nonlinear increased velocity of climate change, we concluded that discussing the uncertainties of large-scale models will have lower impact than to develop-validate mitigation strategies to be operative at local level, and compatibles with sustainable development, conservation biodiversity, and respect for cultural diversity.…”
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4379
Numerical Study on the In-Plane and Out-of-Plane Resistance of Brick Masonry Infill Panels in Steel Frames
Published 2017-01-01“…In this paper, three different configurations have been evaluated by using the general finite element software, ABAQUS. Nonlinear pushover and time history analyses have been conducted for each of the three configurations. …”
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4380
An Improved Fuzzy Logic Controller Design for PV Inverters Utilizing Differential Search Optimization
Published 2014-01-01“…Results show that the proposed controller can successfully obtain the desired output when different linear and nonlinear loads are connected to the system. Furthermore, the inverter has reasonably low steady state error and fast response to reference variation.…”
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