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4901
An interface-based microscopic model for the failure analysis of masonry structures reinforced with timber retrofit solutions
Published 2024-09-01“…These interface elements serve to reproduce the nonlinear behavior of masonry because of the occurrence of failure mechanisms of the mortar joints. …”
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4902
An interface-based microscopic model for the failure analysis of masonry structures reinforced with timber retrofit solutions
Published 2024-09-01“…These interface elements serve to reproduce the nonlinear behavior of masonry because of the occurrence of failure mechanisms of the mortar joints. …”
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4903
Multi-Item Multiperiodic Inventory Control Problem with Variable Demand and Discounts: A Particle Swarm Optimization Algorithm
Published 2014-01-01“…While the objectives are to minimize both the total inventory cost and the required storage space, the model is formulated into a fuzzy multicriteria decision making (FMCDM) framework and is shown to be a mixed integer nonlinear programming type. In order to solve the model, a multiobjective particle swarm optimization (MOPSO) approach is applied. …”
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4904
Research on the impact of the digital economy on carbon emissions based on the dual perspectives of carbon emission reduction and carbon efficiency
Published 2025-01-01“…Fourthly, industrial structure upgrading is a key nonlinear factor reducing the digital economy’s impact on carbon reduction, while the digital economy’s effect on urban carbon efficiency shows a U-shaped pattern. …”
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4905
The Effect of Malrotation of Tibial Component of Total Knee Arthroplasty on Tibial Insert during High Flexion Using a Finite Element Analysis
Published 2014-01-01“…The tibial insert made from ultra-high-molecular-weight polyethylene was assumed to be elastic-plastic while femoral and tibial metal components were assumed to be rigid. Four nonlinear springs attached to tibial component represented soft tissues around the knee. …”
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4906
Optimization Method of Underwater Flapping Foil Propulsion Performance Based on Gaussian Process Regression and Deep Reinforcement Learning
Published 2025-01-01“…In order to overcome the complexity and variability of underwater working environments, as well as the difficulty of controlling the flapping motion due to the significant nonlinear characteristics and numerous variables involved, a direct exploration approach is proposed to search for the optimal flapping foil propulsion parameters in the environment. …”
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4907
Adaptive Robust SMC-Based AGC Auxiliary Service Control for ESS-Integrated PV/Wind Station
Published 2020-01-01“…The shifting operation modes and external disturbances make ESSs in an ESS-integrated PV/wind station inherently nonlinear and time variable. Therefore, an adaptive robust sliding-mode control (ARSMC) system is proposed. …”
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4908
Analytical monodromy matrix method for small-signal stability analysis of grid-connected modular multilevel converter systems
Published 2025-03-01“…., high-voltage direct current transmission. However, its nonlinear time-periodic nature leads to complex harmonic interactions and then complicates the small-signal stability modeling and analysis of grid-connected MMC systems. …”
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4909
Partitioned Strong Coupling of Discrete Elements with Large Deformation Structural Finite Elements to Model Impact on Highly Flexible Tension Structures
Published 2020-01-01“…Here, the protection nets are described with nonlinear structural finite elements and the impacting objects as DEM elements. …”
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4910
A QSAR Study Based on SVM for the Compound of Hydroxyl Benzoic Esters
Published 2017-01-01“…The results show that R2 and Q2LOO of 4 kinds of nonlinear models are more than 0.6 and SDEPext is 0.213, 0.222, 0.189, and 0.218, respectively. …”
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4911
Damping Effects Induced by a Mass Moving along a Pendulum
Published 2014-01-01“…The system consists of a disk travelling along an oscillating pendulum: large swinging angles are reached, so that its equation of motion is not only time-varying but also nonlinear. Signals are acquired from a rotary sensor, but some remarks are also proposed as regards signals measured by piezoelectric or capacitive accelerometers. …”
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4912
Social Inequalities in Adolescents’ Psychological and Somatic Complaints: Cross-National Trends Between 2002 and 2022 and the Role of Societal Changes
Published 2025-01-01“…We tested (1) whether the association between family socioeconomic status and psychological and somatic complaints changed between 2002 and 2022, (2) the extent to which these trends varied across countries, and (3) whether changes in income inequality, schoolwork pressure, and internet activity within countries were related to these trends.MethodsUsing data from 903,344 adolescents across 32 countries from the Health Behaviour in School-aged Children (HBSC) study between 2002 and 2022, we employed multilevel models to investigate the research questions.ResultsWe observed a nonlinear increase in psychological and somatic complaints over time. …”
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4913
Three-dimensional electrical structure in the northwestern sector of the Sichuan-Yunnan diamond block
Published 2025-01-01“…Our study conducted a magnetotelluric profile from Chazha to Luomai across the geological boundary of the Sichuan-Yunnan block in its northwest sector. Using the nonlinear conjugate gradient three-dimensional inversion method, we obtained the deep electrical structure across the northern part of the block. …”
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4914
The L-shaped association between body roundness index and all-cause mortality in osteoporotic patients: a cohort study based on NHANES data
Published 2025-01-01“…To analyze the relationship between BRI and mortality while accounting for important covariates, we employed weighted Cox proportional hazards models, conducted Kaplan–Meier survival analyses, and utilized restricted cubic splines (RCS).ResultsHigher BRI was significantly associated with better long-term survival, showing an “L”-shaped nonlinear inverse relationship with mortality, with a threshold at BRI = 5. …”
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4915
Optimal compensation method for centrifugal impeller considering aerodynamic performance and dimensional accuracy
Published 2025-02-01“…This study proposes a novel optimal compensation method for centrifugal impellers that comprehensively considers the aerodynamic performance and dimensional accuracy. First, a nonlinear mapping relationship between the key geometric parameters of the blade and the aerodynamic performance was established. …”
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4916
Comparative Study of Maximum Power Point Tracking Techniques for Photovoltaic Systems
Published 2015-01-01“…., irradiance and temperature), since the MPP is nonlinear with the environment status. PSIM software is used to validate the assumptions, while relevant results are discussed in detail.…”
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4917
A Multi-Resonant based reference feedforward adaptive voltage control for Grid-Forming inverter in island mode to compensate system uncertain and harmonic distortions
Published 2025-03-01“…Compared with classical PI/PR methods or other adaptive ones, this newly proposed adaptive control method synthesizes high robustness, excellent voltage regulation performance, and low total harmonic distortion under nonlinear loads in island mode. The experiments verify its effectiveness on a GFM inverter using a TI TMS320F28335 DSP.…”
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4918
Ground Deformation Characteristics Induced by Mechanized Shield Twin Tunnelling along Curved Alignments
Published 2021-01-01“…This paper investigates the ground deformation characteristics induced by mechanized shield twin tunnelling along curved alignments by adopting the nonlinear three-dimensional (3D) finite element method (FEM). …”
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4919
A Novel Version of HPM Coupled with the PSEM Method for Solving the Blasius Problem
Published 2021-01-01“…This work studies the nonlinear differential equation that models the Blasius problem (BP) which is of great importance in fluid dynamics. …”
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4920
A Simplified Parametric Study on Occupant Comfort Conditions in Base Isolated Buildings under Wind Loading
Published 2017-01-01“…The procedure is based on (i) the nonlinear dynamic analysis of the structure modeled as a single-degree-of-freedom oscillator with hysteretic base isolators, (ii) the digital generation of time histories of turbulent wind velocity, and (iii) comfort evaluations based on international standards. …”
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