Showing 5,221 - 5,240 results of 5,544 for search '"Nonlinearity"', query time: 0.05s Refine Results
  1. 5221

    Computationally Efficient Minimum-Time Motion Primitives for Vehicle Trajectory Planning by Mattia Piccinini, Simon Gottschalk, Matthias Gerdts, Francesco Biral

    Published 2024-01-01
    “…Finally, the motion primitives of this paper achieve similar maneuver times as minimum-time economic nonlinear model predictive control (E-NMPC), but with significantly lower computational load (two orders of magnitude). …”
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  2. 5222

    Research on multi-objective control of PPCI diesel engine combustion process based on data driven modelling by Ziqiang Chen, Peng Ju, Zhe Wang, Du Huang, Lei Shi, Kangyao Deng

    Published 2025-01-01
    “…However, the multi-parameter coupling and nonlinear increase in the combustion process make the model and controller design more difficult. …”
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  3. 5223

    Comparison of Kolmogorov–Arnold Networks and Multi-Layer Perceptron for modelling and optimisation analysis of energy systems by Talha Ansar, Waqar Muhammad Ashraf

    Published 2025-05-01
    “…KAN models are embedded in the optimisation framework of nonlinear programming and feasible optimal solutions are estimated, maximising thermal efficiency up to 42.17 ± 0.88 % and minimising turbine heat rate to 7487 ± 129 kJ/kWh corresponding to power generation of 500 ± 14 MW for the thermal power plant. …”
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  4. 5224

    Normalized difference vegetation index prediction using reservoir computing and pretrained language models by John Olamofe, Ram Ray, Xishuang Dong, Lijun Qian

    Published 2025-03-01
    “…Using MODIS/Terra Vegetation Indices 16-Day L3 Global 250 m SIN Grid V061 dataset, we designed and implemented Reservoir Computing (RC) models and transformer-based models including pretrained language model, and compared the prediction performance of these models to traditional machine learning and deep learning methods such as Nonlinear Regression, Decision Tree, Convolutional Neural Network (CNN), Long Short-Term Memory (LSTM) network, and DLinear. …”
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  5. 5225

    Study on Deformation Mechanism and Support Measures of Soft Surrounding Rock in Muzhailing Deep Tunnel by Zhigang Tao, Jindong Cao, Liu Yang, Aipeng Guo, Ruifeng Huang, Xiaojie Yang, Di Yuan, Lin Hou

    Published 2020-01-01
    “…The maximum buried depth is 600 m, and the engineering rock mass at the depth has nonlinear physical and mechanical phenomenon. The maximum principal stress of Muzhailing tunnel is 25.7 MPa, which belongs to high-stress joint swelling soft rock tunnel. …”
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  6. 5226

    Bearing Behavior of H-Shaped Honeycombed Steel Web Composite Columns with Rectangular Concrete-Filled Steel Tube Flanges under Eccentrical Compression Load by Jing Ji, Chenyu Yu, Liangqin Jiang, Jiedong Zhan, Hongguo Ren, Sixue Hao, Shaojie Fan, Li Jiang, Yubo Lin, Lingjie He

    Published 2022-01-01
    “…In order to investigate the bearing capacity of H-shaped honeycombed steel web composite columns with rectangular concrete-filled steel tube flanges (STHCCs) subjected to eccentrical compression load, 33 full-scale STHCCs were designed with the eccentricity(e), the slenderness ratio (λ), the cubic compressive strength of concrete(fcuk), the thickness of the steel tube flange (t1), the thickness of honeycombed steel web (t2), diameter-depth ratio (d/hw), space-depth (s/hw), and the yield strength of the steel tube (fy) as the main parameters. Considering the nonlinear constitutive model of concrete and simplified constitutive model of steel, the finite element (FE) model of STHCCs was established by ABAQUS software. …”
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  7. 5227

    Atomic structure, diffusivity and viscosity of Al1-xMgx melts from ab initio molecular dynamics simulations by Gao Q.-N., Wang J., Du Y., Shang S.-L., Liu Z.-K., Liu Y.-J.

    Published 2021-01-01
    “…In dilute melts, the tracer diffusion coefficients of solute atom and the interdiffusion coefficients increase nonlinearly with the increasing temperature. For Al0.8828Mg0.1172 and Al0.0820Mg0.9180 melts, the viscosities η are comparatively higher than pure melts. …”
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  8. 5228

    A comparative study of the production of methyl esters from non-edible oils as potential feedstocks: Process optimization and two-step biodiesel characterization by Jassinnee Milano, Mei Yin Ong, Sieh Kiong Tiong, F. Ideris, A.S. Silitonga, A.H. Sebayang, Chung Hong Tan, I.M.R. Fattah, Zahra Fona, Nazia Hossain

    Published 2025-03-01
    “…The response surface methodology (RSM), a nonlinear regression approach, was employed to optimize the transesterification process, aiming to simulate and apply the same process parameters across all three oils. …”
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  9. 5229

    Experimental identification of I-mode characteristics at the edge of FIRE mode in KSTAR by Chweeho Heo, SangJin Park, GyungJin Choi, Jaewook Kim, Eun-jin Kim, YoungMu Jeon, Minjun J. Choi, Hyunsun Han, Choongki Sung, TaikSoo Hahm, Yong-Su Na

    Published 2025-01-01
    “…The WCM propagates in the ion diamagnetic drift direction in the laboratory frame, but its propagation direction in the E × B flow frame has yet to be determined. Nonlinear phase coupling between the low-frequency density fluctuation components and the WCMs is identified, indicating the presence of zonal density. …”
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  10. 5230

    Plastic harmful ingredients reduce the level of neurofilament light chain protein by Long Li, Xiaoxiu Ma, Junwei Liu, Yongli Wu

    Published 2025-01-01
    “…Furthermore, a significant dose-response relationship was observed between MEHHP and NFL, while Butyl paraben and Mono (Hydroxy-Isononyl) Ester exhibited a distinct ''inverted U-shaped'' nonlinear pattern with NFL. Additionally, Weighted Quantile Sum model allowed us to identify the mixed effects of all 24 plastic hazardous ingredients, with Mono(2-Ethyl-5-Oxohexyl) Phthalate, Mono-isobutyl phthalate, Mon butyl Phthalate, Propyl paraben and Triclosan occupying prominent positions. …”
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  11. 5231

    Correlation of artificial neural network and multi-attribute transformation: a test case to predict the effective porosity of Cretaceous sandstones of the Sembar Formation, southea... by Furqan Aftab, Furqan Aftab, Furqan Aftab, Furqan Aftab, Mohammad Zafar, Muhammad Iqbal Hajana, John H. Shaw

    Published 2025-02-01
    “…Artificial Neural Network’s (ANN’s) have emerged as an effective tool for deriving nonlinear mathematical relationships between seismic attributes and well logs that are theoretically plausible and may prove geologically realistic. …”
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  12. 5232

    Association of dietary niacin intake with osteoporosis in the postmenopausal women in the US: NHANES 2007–2018 by Li Li, Wankun Liang, Bing Deng, Yue Jiang, Xiaomin Huang, Yanlin Zhang, Tianrui Lu, Lu Wang, Yunxiang Xu, Guizhen Chen

    Published 2025-02-01
    “…A negative relationship was observed between dietary niacin intake and the risk of osteoporosis (nonlinear: p = 0.672). While stratified analyses revealed some differences in the association between dietary niacin intake and osteoporosis risk, these differences were not statistically significant.ConclusionDietary niacin intake exhibited an inverse correlation with the incidence of osteoporosis. …”
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  13. 5233

    Numerical Research on Hull–Propeller–Rudder–Ice Interaction of Full-Scale Polar Transport Ship in Brash Ice Channel by Jinlong Zhang, Jianing Zhang, Lei Zhang, Weimin Chen, Qingshan Zhang

    Published 2025-01-01
    “…A strong nonlinear ice load has a significant impact on the resistance and power demand of polar transport ships under different drafts in brash ice channels. …”
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  14. 5234

    The Icing Characteristics of Post Insulators in a Natural Icing Environment by Zhijin Zhang, Jiahui Tu, Yuanpeng Zhang, Xingliang Jiang, Zhenbing Zhu

    Published 2025-01-01
    “…The main conclusions are as follows: (1) the icing type and morphology of post insulators are influenced by meteorological conditions, with more severe icing observed on the windward side. (2) The icing mass and icicle length of the insulator increase nonlinearly with icing time. Specifically, during the glaze icing period from 0 to 8 h, the ice mass on the Type V composite post insulator was 3.89 times greater than that during the 13-to-18 h period. (3) Within the same icing cycle, the icing growth rate on composite post insulators is faster than on porcelain post insulators. (4) Compared to suspension insulators, the sheds of post insulators are more easily bridged by icicles. …”
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  15. 5235

    Genome Mining and Characterization of Two Novel <i>Lacticaseibacillus rhamnosus</i> Probiotic Candidates with Bile Salt Hydrolase Activity by Gianluigi Agolino, Marianna Cristofolini, Amanda Vaccalluzzo, Davide Tagliazucchi, Alice Cattivelli, Alessandra Pino, Cinzia Caggia, Lisa Solieri, Cinzia Lucia Randazzo

    Published 2025-01-01
    “…However, BAs stress increased the <i>bsh</i> gene transcription in the VB1 strain but not in the VB4 strain, suggesting a partially nonlinear relationship between BSH activity and gene expression. …”
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  16. 5236

    The Spatio-temporal Evolution of NDVI in the Three Gorges Reservoir Area Driven by the Synergistic Effect of two Factors over the Past 21 Years by QI Haimei, ZHENG Peilong, WANG Yunqi, WANG Jiani, LI Cheng, ZHANG Xiaoming

    Published 2024-12-01
    “…Their interplay showed a nonlinear or synergistic enhancement, and the integrated explanatory power of the two factors on NDVI changes is always greater than that of single factors. …”
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    Article
  17. 5237

    Investigation of a transformer-based hybrid artificial neural networks for climate data prediction and analysis by Shangke Liu, Ke Liu, Zheng Wang, Yuanyuan Liu, Bin Bai, Rui Zhao

    Published 2025-01-01
    “…While they have achieved some success, these models still face issues such as complexity, high computational cost, and insufficient handling of multivariable nonlinear relationships.MethodsIn light of this, this paper proposes a hybrid deep learning model based on Transformer-Convolutional Neural Network (CNN)-Long Short-Term Memory (LSTM) to improve the accuracy of climate predictions. …”
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  18. 5238

    Kinetic and isotherm studies of nickel and cadmium ions adsorption onto Clay-Chitosan composite by Rachid Et-Tanteny, Ibrahim Allaoui, Imad Manssouri, Bouchta El Amrani, Khalid Draoui

    Published 2025-01-01
    “…The obtained results revealed that the maximum adsorbed quantities obtained were 153.086 mg/g for Ni (II) and 61.093 mg/g for Cd (II), demonstrating the excellent performance of the composite. Nonlinear modeling of the kinetic and isotherm data demonstrated that the pseudo second order kinetic model best describes the adsorption kinetics of R2 = 0.994 for Cd (II) and R2 = 0.999 for Ni (II), with a rapid equilibrium time reached in 60 min. …”
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  19. 5239

    River water quality monitoring using machine learning with multiple possible in-situ scenarios by Dani Irwan, Saerahany Legori Ibrahim, Sarmad Dashti Latif, Chris Aaron Winston, Ali Najah Ahmed, Mohsen Sherif, Amr H. El-Shafie, Ahmed El-Shafie

    Published 2025-06-01
    “…Furthermore, many water quality factors have complex nonlinear relationships that are difficult for these methods to handle. …”
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  20. 5240

    Research of the microwave generator and antenna emitters for hyperthermia of oncological diseases by V. V. Fedyanin

    Published 2022-11-01
    “…It is established that the maximum radiated power occurs when the oscillation frequency is equal to the natural frequency of the antennas. The nonlinear dependence of the supply voltage on the radiation power is established. …”
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