Showing 6,121 - 6,140 results of 6,894 for search '"nonlinear"', query time: 0.09s Refine Results
  1. 6121

    NEUTRON CAPTURE GAMMA RAY FIELD WITH ENERGY TO 10 MeV FOR METROLOGICAL SUPPORT OF RADIATION PROTECTION DEVICES by D. I. Komar, R. V. Lukashevich, V. D. Guzov, S. A. Kutsen

    Published 2016-12-01
    “…We got experimental spectral data on detection unit BDKG-19M NaI(Tl) 63 × 160 mm with nonlinear channel-energy conversion characteristic in range to 10 MeV. …”
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  2. 6122

    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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  3. 6123

    Study of Corrosion Behavior of Mg–Gd-Based Soluble Magnesium Alloys by Qinghua Wang, Zhiquan Huang, Yanchun Zhu, Ling Qin, Jingfeng Zou, Lifeng Ma

    Published 2025-01-01
    “…The results demonstrated that corrosion rates increased with higher Cl<sup>−</sup> concentrations and elevated temperatures, albeit in a nonlinear manner. Notably, significant effects on corrosion rates were observed in the Cl<sup>−</sup>concentration range of 1% to 3% and at temperatures between 75 °C and 100 °C. …”
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  4. 6124

    Dynamical Visualization and Qualitative Analysis of the (4+1)-Dimensional KdV-CBS Equation Using Lie Symmetry Analysis by Maria Luz Gandarias, Nauman Raza, Muhammad Umair, Yahya Almalki

    Published 2024-12-01
    “…These results highlight the effectiveness of our methodology in tackling nonlinear problems in both mathematics and engineering, surpassing previous research efforts.…”
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    Article
  5. 6125

    Multiscale Method for Seismic Response of Near-Source Sites by Shutao Li, Jingbo Liu, Zhou Yang, Xin Bao, Fei Wang, Xiaofeng Wang, Mohsen Saleh Asheghabadi

    Published 2020-01-01
    “…To solve problems such as an inefficient computation and challenging nonlinear simulation, a multiscale analysis method for the calculation of the seismic response of underground structures at near-source sites is developed. …”
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  6. 6126

    Short‐Term Memory and Regional Climate Drive City‐Scale Water Demand in the Contiguous US by Wenjin Hao, Andrea Cominola, Andrea Castelletti

    Published 2025-01-01
    “…We develop a causal discovery framework based on a Neural Granger Causal (NGC) model, a machine learning approach that identifies nonlinear causal relationships between determinants and water demand, enabling comprehensive water demand determinants discovery and water demand forecasting across the CONUS. …”
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  7. 6127

    Mathematical Modeling of Public Opinions: Parameter Estimation, Sensitivity Analysis, and Model Uncertainty Using an Agree-Disagree Opinion Model by Sara Bidah, Omar Zakary, Mostafa Rachik, Hanane Ferjouchia

    Published 2020-01-01
    “…To validate the reality of the underlying model, we use nonlinear least-squares regression to fit the model to actual data. …”
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  8. 6128

    Detection and Quantification of the Relationship between the Ratio of Triglycerides over High-Density Lipoprotein Cholesterol and the Level of Serum Uric Acid: One Cross-Sectional... by Yuexi Li, Yuhan Luo, Qiaoli Wang, Xiaoqin Liu

    Published 2022-01-01
    “…Therefore, TG/HDL-C is positively and nonlinearly correlated to the level of uric acid, and the inflection point is 1.41. …”
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  9. 6129

    Modulation Instability and Dynamical Analysis of New Abundant Closed-Form Solutions of the Modified Korteweg–de Vries–Zakharov–Kuznetsov Model With Truncated M-Fractional Derivativ... by Md. Shafiqul Islam, Md. Mamunur Roshid, Mahtab Uddin, Ashek Ahmed

    Published 2024-01-01
    “…The mKdV-ZK equation can be used to describe the behavior of ion-acoustic waves in plasma and the propagation of surface waves in deep water with nonlinear and dispersive effects in fluid dynamics. …”
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  10. 6130

    Validation of Hydraulic Mechanism during Blowout Trauma of Human Orbit Depending on the Method of Load Application by Marcin A. Zmuda Trzebiatowski, Paweł Kłosowski, Andrzej Skorek, Krzysztof Żerdzicki, Paweł Lemski, Mateusz Koberda

    Published 2021-01-01
    “…Such an approach is aimed at a better understanding of the pattern for the formation of blowout fractures during the indirect load applied to the orbital bones. The nonlinear dynamic analysis of both numerical models showed that the potential fracture was observed in the second variant only, embracing a relatively large area: both medial and lower wall of the orbit. …”
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  11. 6131

    Can Obesity Prevalence Explain COVID-19 Indicators (Cases, Mortality, and Recovery)? A Comparative Study in OECD Countries by Yuval Arbel, Chaim Fialkoff, Amichai Kerner, Miryam Kerner

    Published 2022-01-01
    “…The reasons for these nonlinear patterns might be explained by several conditions such as increased metabolic reserves, more aggressive treatment, other non-SARS-CoV-2 virus complications for obese persons, and unidentified factors that should be examined in future research.…”
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  12. 6132
  13. 6133

    Experimental study on the evolution of submerged artificial sandbar-beach profile under the regular waves condition by Wenliang Zhang, Junli Guo, Lianqiang Shi, Zhuocheng Liu, Qinghua Ye, Cuiping Kuang, Yu Peng, Huangzhe Qi

    Published 2025-01-01
    “…Continuous sediment transport into the trough characterizes the beach face, with sediment movement controlled by wave height and period. A linear or nonlinear relationship between sandbar erosion depth, beach slope, and wave parameters (height, period) is established, providing an empirical model for SAB-beach profiles. …”
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  14. 6134

    The Fractal Dimension, Structure Characteristics, and Damage Effects of Multi-Scale Cracks on Sandstone Under Triaxial Compression by Pengjin Yang, Shengjun Miao, Kesheng Li, Xiangfan Shang, Pengliang Li, Meifeng Cai

    Published 2025-01-01
    “…As the confining pressure increases, the spatial fractal dimension of large-scale cracks decreases, while that of medium-scale cracks increases, and that of small-scale cracks remains stable. The respective nonlinear models of the aspect ratio were established with the length and density of multi-scale cracks. …”
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  15. 6135

    Power flow and power quality improvement of a residential-industrial microgrid using 72-pulse inverter-based UIPC by Mahyar Abasi, Ali Nahavandi, Javad Ebrahimi, Gevork B. Gharehpetian

    Published 2025-03-01
    “…As large reactive power consumers, arc furnaces have a completely nonlinear and unbalanced behavior that directly affects power quality indices and reactive power control. …”
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  16. 6136

    Improved Neutral Density Predictions Through Machine Learning Enabled Exospheric Temperature Model by Richard J. Licata, Piyush M. Mehta, Daniel R. Weimer, W. Kent Tobiska

    Published 2021-12-01
    “…We utilize derived temperature data and optimize a nonlinear machine‐learned (ML) regression model to improve upon the performance of the linear EXospheric TEMPeratures on a PoLyhedrAl gRid (EXTEMPLAR) model. …”
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  17. 6137

    PreMevE Update: Forecasting Ultra‐Relativistic Electrons Inside Earth's Outer Radiation Belt by Saurabh Sinha, Yue Chen, Youzuo Lin, Rafael Pires de Lima

    Published 2021-09-01
    “…Our results also suggest that this new model is dominated by nonlinear components at L‐shells <∼4 for ultra‐relativistic electrons, different from the dominance of linear components for 1 MeV electrons as previously discovered.…”
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  18. 6138

    Shear Capacity of Open Sandwich Steel Plate-Concrete Composite Slab: Experimental and Analytical Studies by Lili Wu, Lipei An, Jiawei Li

    Published 2019-01-01
    “…Considering that the fixed crack model by default of the general finite element software was unable to simulate the shear softening behavior of concrete in the actual situation, a rotational crack model based on the modified compression field theory developed by UMAT (user material) of ABAQUS software was proposed and applied to the nonlinear analysis, and a numerical simulated model for the steel-concrete composite slab was built for shear analysis. …”
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  19. 6139

    Obesity mediates the association between psoriasis and diabetes incidence: a population-based study by Zuojiao Xu, Kaihua Ma, Yinuo Zhai, Jing Wang, Yan Li

    Published 2025-02-01
    “…The study employed weighted logistic regression to examine the association between psoriasis and diabetes. The nonlinear relationship between obesity, diabetes, and psoriasis was explored through smooth curve fitting, stratified by age and gender. …”
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  20. 6140

    A harmonic model validation methodology for power generation units based on voltage-current phasor characteristic by Kia Malekian Boroujeni, Farhad Safargholi, Kaveh Malekian

    Published 2025-04-01
    “…The practicability of the methodology is shown by employing some test-bench (photovoltaic power generation unit) and on-site (wind power generation unit) measurement campaigns for validating some linear and nonlinear harmonic models. This paper also suggests some criteria for evaluating the quality of measurement data as the model validation input and for defining an acceptable deviation of models from measurement data.…”
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