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6141
Seismic Vulnerability Assessment of the Cliff-Attached Buildings Equipped with Energy Dissipation Devices Under Obliquely Incident Seismic Waves
Published 2024-10-01“…The dynamic response of the obliquely incident seismic waves under the action of the cliff-attached vibration reduction structure is studied in depth, and the additional effective damping ratios of the nonlinear energy-dissipated units based on the deformation energy are compared and analyzed. …”
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6142
Simulation of commutation process DC traction motor of quarry dump truck
Published 2020-04-01“…The article considers a nonlinear multiple regression model based on which a model of the commutation process of the DC traction motor of a quarry dump truck. …”
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6143
Flood modeling prior to the instrumental era reveals limited magnitude of 1931 Yangtze flood
Published 2025-01-01“…Due to data scarcity, reconstructing pre-instrumental flood magnitudes relies on statistical downscaling, failing to capture nonlinear and dynamic characteristics. We developed a dynamical approach, NorESM-WRF-SWAT, integrating a global climate, a regional, and a hydrologic model to investigate the 1931 Yangtze River flood (the deadliest in the world) and compared it with the 1998’s. …”
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6144
Time-resolved momentum microscopy with fs-XUV photons at high repetition rates with flexible energy and time resolution
Published 2025-01-01“…The laser setup includes a nonlinear pulse compression stage employing spectral broadening in a Herriott-type bulk-based multi-pass cell. …”
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6145
Microcrack feature extraction method for chaotic optical surface of silicon nitride ceramic bearing roller based on multi-scale wavelet transform enhancement and optimized PSO-FCM...
Published 2025-01-01“…The particle swarm optimization mathematical equation with a decay function is built to optimize the FCM chaotic clustering model. The nonlinear decayed particle velocity equation is constructed to update the particle position and iteratively refine the optimal clustering center positions to realize the feature extraction of microcracks. …”
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6146
Dose-dependent association between physical activity and mental health, and mitigation effects on risk behaviors
Published 2025-02-01“…This study using restricted cubic spline and piecewise regression analyses based on a representative national sample of 30,054 Chinese adults, revealed reverse J-shaped (p for nonlinear <0.001) but monotonic beneficial associations between physical activity and depression, anxiety, and stress symptoms, with optimal thresholds identified at 2.15 METs-hour/day for depression and anxiety, and 3.25 METs-hour/day for stress. …”
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6147
Wind Energy Resource Prediction and Optimal Storage Sizing to Guarantee Dispatchability: A Case Study in the Kenyan Power Grid
Published 2022-01-01“…Artificial intelligence (AI) and metaheuristic techniques have proven to be efficient and robust in offering solutions to complex nonlinear prediction and optimization problems. Therefore, this study aims to utilize backpropagation neural network (BPNN) algorithm to conduct hourly prediction of the generation output of Lake Turkana Wind Power Plant (LTWPP), a 310 MW plant connected to the Kenyan power grid, and optimally size its battery energy storage system (BESS) using genetic algorithm (GA) to guarantee its dispatchability. …”
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6148
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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6149
Allometric equations for estimating above and belowground biomass of Colophospermum mopane in Mozambique
Published 2025-01-01“…We fitted three BAE models using Ordinary Least Squares (OLS) regression and fifteen H-D models using nonlinear regression. A validation procedure checked the applicability of all models. …”
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6150
Fuzzy modeling using the similarity-based approximate reasoning system
Published 2025-01-01“…Next, we validate the effectiveness of the proposed similarity measure in a bidirectional approximate reasoning system in order to provide a nonlinear mapping of fuzzy input data into fuzzy output data. …”
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6151
Association between serum carotenoids levels and endometriosis risk: evidence from the National Health and Nutrition Examination Survey
Published 2025-02-01“…Additionally, restricted cubic spline (RCS) was employed to assess the possibility of nonlinear associations. Finally, subgroup analyses were utilized to estimate the influence of several covariates on the associations.ResultsWeighted multivariate logistic regression analyses showed that, after adjusting for all covariates taken into account, there was a significant association between serum lutein/zeaxanthin levels and reduced risk of endometriosis (Quartile 3 vs. …”
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6152
Geological characteristics of coal mines in the Zagros Basin of Iran: Unveiling rock mechanical properties and time-dependent behavior
Published 2025-03-01“…The study reveals that the rock mass displays significant nonlinear behavior, with changes in rock mechanical properties over time. …”
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6153
Multi-objective planning and sustainability assessment for integrated energy systems combining ORC and multi-energy storage: 4E (economic, environmental, exergy and emergy) analysi...
Published 2025-01-01“…Firstly, the mixed-integer nonlinear optimization models for three scenarios of gas turbine (GT) without ORC, GT with ORC (GT-ORC) and solid oxide fuel cell (SOFC) with ORC (SOFC-ORC) are established, and the Pareto curve is obtained by using the augmented ε constraint. …”
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6154
Scaling up uncertain predictions to higher levels of organisation tends to underestimate change
Published 2021-08-01“…We explain why dimensional effects do not play out when predicting change of a single linear aggregate property (e.g. total biomass), yet are revealed when predicting change of nonlinear properties (e.g. absolute biomass change, stability or diversity), and when several properties are considered at once to describe the ecosystem, as in multi‐functional ecology. …”
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6155
L-shaped association between ankle-brachial index and coronary heart disease in Chinese adults with hypertension
Published 2025-02-01“…Conclusions In Chinese adults with hypertension, ABI exhibits a nonlinear, L-shaped association with CHD, with the inflection point at 1.07.…”
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6156
Heart rate variability is more sensitive to stress than heart rate in specialist police undergoing selection.
Published 2025-01-01“…The MSFT was significantly, positively, correlated with pRR50% (ρ (6) = 0.812, p = 0.050, Fisher's z = 1.132). The MSFT and nonlinear HRV, frequency domain HRV, and HR were not significantly correlated. …”
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6157
Model-Oriented Training of Coordinators of the Decentralized Control System of Technological Facilities With Resource Interaction
Published 2025-01-01“…An approach to determining the optimal statistics of the training dataset for the coordination control of nonlinear technological facilities with resource interaction is proposed. …”
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6158
Similarity Learning and Generalization with Limited Data: A Reservoir Computing Approach
Published 2018-01-01“…We observe that the reservoir acts as a nonlinear filter projecting the input into a higher dimensional space in which the relationships are separable; i.e., the reservoir system state trajectories display different dynamical patterns that reflect the corresponding input pair relationships. …”
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6159
Multiple Influence Factor Sensitivity Analysis and Height Prediction of Water-Conducting Fracture Zone
Published 2021-01-01“…Using the multiple regression mathematical model, a nonlinear statistical relationship between the height of the water-conducting fracture zone and ratio coefficient of hard rock lithology, mining thickness, working face length, and mining depth was obtained. …”
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6160
Further Analysis of the Passive Dynamics of the Compass Biped Walker and Control of Chaos via Two Trajectory Tracking Approaches
Published 2021-01-01“…The dynamic walking of the compass-gait walker is modeled by an impulsive hybrid nonlinear system. This impulsive hybrid nature is considered very complex as it can generate unwanted phenomena such as chaos and bifurcations. …”
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