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1281
Steady-State Dynamical Response of a Strongly Nonlinear System with Impact and Coulomb Friction Subjected to Gaussian White Noise Excitation
Published 2020-01-01“…The Zhuravlev nonsmooth transformation of the state variables combined with the Dirac delta function is utilized to simplify the original system to one without velocity jump. …”
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1282
A DQN-Based Algorithm for Operational Optimization of Freight Trains in Long Steep Downhill Sections
Published 2024-08-01“…The study employed the batch collection of training samples utilizing experience replay and a double-network mechanism, along with the preprocessing of neural network state inputs, and the investigation into feasible regions within the action space using a variable ε-greedy strategy. A loss function based on the value function was then constructed, and network parameters were updated iteratively by a batch gradient descent method. …”
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1283
Grid-connected PV inverter system control optimization using Grey Wolf optimized PID controller
Published 2025-08-01“…Conventional controllers such as P and PI are widely used in PV applications due to their simplicity, but they exhibit notable limitations in dynamic environments, including increased Total Harmonic Distortion (THD), slower transient response, and poor voltage regulation—particularly under variable irradiance conditions. The proposed GWO-PID method overcomes these limitations by leveraging the GWO algorithm’s global search capability to dynamically optimize the PID gains (Kp, Ki, Kd) based on a composite fitness function that minimizes Mean Squared Error (MSE) and THD. …”
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1284
Mitigating Load Imbalance and Enhancing Distribution Transformer Performance via Fuzzy Inference System
Published 2025-06-01“…To address this issue, this study proposes a fuzzy logic-based approach using a Mamdani-type Fuzzy Inference System (FIS). The input variables, current magnitudes in phases R, S, and T, are represented by trapezoidal membership functions classified into several categories. …”
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1285
A Brief Political Economy of Energy Subsidies in the Middle East and North Africa
Published 2017-02-01“…While it is clear that energy subsidy reform will not be the only variable at play, its potential socio-economic dividends are important factors for enabling some common regional objectives—sustainable fiscal policies, fiscal space to invest in key areas, and a more efficient and equitable distribution of scarce resources—to be achieved, helping to promote a more stable political status quo in the long term. …”
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1286
Optimizing switching sequences in AC-AC converters for enhanced safety and performance in conveyor systems
Published 2025-08-01“…Industrial systems require optimized control to maintain efficiency under variable loads. Fault conditions influence power stability and overall system functionality. …”
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1287
Classification of Biological Data using Deep Learning Technique
Published 2022-04-01“…Previous work failed to properly address issues related to the classification of biological sequences i.e. protein including efficient encoding of variable length biological sequence data and implementation of deep learning based neural network models to enhance the performance of classification/ recognition systems. …”
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1288
Haemodynamics-driven developmental pruning of brain vasculature in zebrafish.
Published 2012-01-01“…The brain blood vasculature consists of a highly ramified vessel network that is tailored to meet its physiological functions. How the brain vasculature is formed has long been fascinating biologists. …”
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1289
Validation and Discriminant Analysis of the Athens Insomnia Scale in Older Adults
Published 2025-06-01“…The internal consistency of the AIS was assessed using the Cronbach alpha coefficient. For validity analyses, the scale's structure validity was evaluated using confirmatory factor analysis (CFA). …”
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1290
Correlation between Electrochemical Relaxations and Morphologies of Conducting Polymer Dendrites
Published 2024-01-01“…Correlations are established between dispersive capacitances of dendritic morphologies and growth duration, independently from exogenous physical variables: distance, evaporation or aging. Deviation of the anomalous capacitance from the conventional Debye dielectric relaxation can be programmed, as the growth controls the dispersion coefficient of the dendrite's constant-phase elements relaxation. …”
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1291
Allometric equation for estimating aboveground biomass of Acacia-Commiphora forest, southern Ethiopia
Published 2024-06-01“…Data was transformed to logarithmic functions and multiple linear regression techniques were used to develop model to estimate aboveground biomass (AGB). …”
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1292
Evaluation of oral health-related quality of life in burn survivors: A cross-sectional study
Published 2024-01-01“…Purpose: The face, crucial to identity, is susceptible to the functional and psychological impact of burn injuries. …”
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1293
Effect of Gratitude on Mental Health with Mediating Role of Positive and Negative Affect
Published 2019-06-01“…Evaluating the proposed model was conducted in Amos 24 and SPSS 24 software through the Pearson correlation coefficient, the structural equation model, and the bootstrap method. …”
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1294
Regional calibration of ecosystem service valuation under climate and tourism influences: a case study in subtropical Longyan, China
Published 2025-08-01“…Abstract Precise evaluation of ecosystem service value (ESV) under climate variability is essential for supporting regional ecological management. …”
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1295
Predicting Kinematic Viscosity and Cetane Number of Diesel- Biodiesel Blend Using Neural Network and Empirical Models
Published 2022-09-01“…This study tries to estimate two substantial properties of blend, i.e. kinemattic viscosity (KV) and cetane number (CN), through neural network (NN) and empirical models which use pure properties of biodiesel (kinematic viscosity, boiling point, evaporation point, flash point, pour point, heat of combustion, cloud point, and specific gravity) as independent variables. In this regard, a three-layer feed-forward network with varying input parameters, training algorithms, transfer functions, and hidden neurons has been examined to predict the KV and CN of the diesel-biodiesel blend. …”
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1296
Non-Destructive Detection of Soybean Storage Quality Using Hyperspectral Imaging Technology
Published 2025-03-01“…The optimal model was used to visualize the dynamic distribution of these values. (3) Results: the crude fatty acid values exhibited a positive correlation with storage time, functioning as a direct indicator of soybean quality. …”
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1297
Effect of a mix of condense and hydrolysable tannins feed additive on lactating dairy cows’ services per conception and days open
Published 2025-03-01“…Services per conception was modeled as a Poisson count using a generalized linear model with log link function. Days open was modeled with a generalized linear model for a gamma variable with log link function. …”
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1298
On the approximation of sum of lognormal for correlated variates and implementation.
Published 2025-01-01“…Using Monte Carlo simulations with 5, 15, 25, and 30 samples and correlation coefficients of 0.3, 0.6, and 0.9, we compared Type I error rates through Anderson-Darling goodness-of-fit tests. …”
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1299
Simulation Model for Hardware-in-the-Loop Tests of the ILR-33 AMBER Rocket Control System
Published 2025-06-01“…It permits us to simulate flight dynamics in a 6DOF environment, with consideration of the variable thrust, mass-inertia, and aerodynamics. It reproduces key functionalities of on-board computer and sensors and allows us to reproduce multiple mission scenarios. …”
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1300
Design Interleaved Full Bridge Circuit DC-DC Converter With Fuel Cell Power Source On Hybrid Trains
Published 2024-06-01“…SMC is a type of non-linear control that functions functionally to control variable structures. …”
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