Showing 5,381 - 5,400 results of 5,544 for search '"Nonlinearity"', query time: 0.07s Refine Results
  1. 5381
  2. 5382

    Assessment of ecological resilience and its response mechanism to land spatial structure conflicts in China’s Southeast Coastal Areas by Yuemin Fan, Guoen Wei

    Published 2025-01-01
    “…Furthermore, spatial complexity, instability, and vulnerability exacerbate the negative impact on ecological resilience through nonlinear interactions. This finding supports the feasibility of implementing “Production-Living-Ecological” space control mechanisms—scale transformation, stability maintenance, and connectivity building—to restore ecological resilience. …”
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  3. 5383

    Mechanical properties and piecewise constitutive model of fine sandstone in mining area of western China by Qing Wang, Dongxiao Zhang, Fei Han, Yongqiang Zhao, Pengfei Zhang, Feng Xiong

    Published 2025-01-01
    “…Still, there is a sudden increase in the plastic failure and post-peak failure stages. (2) The fine sandstone specimens’ input energy, elastic energy, and dissipative energy density increased nonlinearly during the cyclic loading tests. Owing to the closure of the primary pores in the microfracture compaction stage, dominant matrix deformation in the elastic deformation stage, and development and expansion of cracks in the plastic failure stage, with an increase in the cyclic loading and unloading times, the dissipative energy ratio first decreased and then increased. (3) Based on the tangential modulus, residual strain, and Felicity ratio, fine sandstone’s cyclic loading and unloading stress-strain curves were divided into microfracture compaction, elastic deformation, and plastic failure stages. …”
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  4. 5384

    Associations between systemic inflammatory biomarkers and metabolic dysfunction associated steatotic liver disease: a cross-sectional study of NHANES 2017–2020 by Xin Qiu, Shuang Shen, Nizhen Jiang, Yifei Feng, Guodong Yang, Donghong Lu

    Published 2025-01-01
    “…Restricted cubic spline (RCS) regression was employed to explore potential nonlinear relationships between biomarkers and MASLD risk. …”
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  5. 5385

    Deformation of Threaded Metal – Composite Couplings Under the Action of Gas-Dynamic Loads by Kostiantyn V. Avramov, Maryna V. Chernobryvko, Volodymyr V. Kombarov, Sergiy I. Plankovskyy, Yevgen V. Tsegelnyk

    Published 2024-12-01
    “…The developed model takes into account the following: dependence of material properties on ambient temperature; nonlinear relations between the components of stress and strain tensors in metal elements, orthotropic properties of composite materials; peculiarities of contact interaction in the zones of threaded couplings of prefabricated shell elements made of different materials. …”
    Article
  6. 5386

    Structural Performance of Reinforced Concrete Beams with Steel Fibres as Secondary Reinforcement: Experimental and Pre-peak Numerical Modelling by Hadjer Belkadi, Abdelkrim Bourzam, Messaoud Saidani

    Published 2024-12-01
    “…The Simplified Concrete Damaged Plasticity Model was used to characterize the compressive and tensile behaviours of plain and steel fibre reinforced concretes. Nonlinear finite element analysis was performed to predict pre-peak load versus mid-span deflection and crack propagation. …”
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  7. 5387

    Farmers’ desire to make changes in their agricultural branches in the first wave of COVID-19 pandemic restrictions: The example of Türkiye by Yener Ataseven, Şule Coşkun Cevher, Celal Cevher

    Published 2025-01-01
    “…A survey study was conducted with broad participation and telephone interviews involving 2125 farmers in different production branches in 22 provinces. Nonlinear Canonical Correlation Analysis was used to analyze variables. …”
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  8. 5388

    Application of Real-Coded Genetic Algorithm–PID Cascade Speed Controller to Marine Gas Turbine Engine Based on Sensitivity Function Analysis by Yunhyung Lee, Kitak Ryu, Gunbaek So, Jaesung Kwon, Jongkap Ahn

    Published 2025-01-01
    “…Gas turbine engines at sea, characterized by nonlinear behavior and parameter variations due to dynamic marine environments, pose challenges for precise speed control. …”
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    Article
  9. 5389

    Time-Varying Total Stiffness Matrix of a Rigid Machine Spindle-Angular Contact Ball Bearings Assembly: Theory and Analytical/Experimental Verifications by Fawzi M.A. El-Saeidy

    Published 2011-01-01
    “…The bearing analyses take into account the bearing nonlinearities, cage rotation and bearing axial preload. …”
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  10. 5390

    Study on Catastrophe Instability of Support System in Gypsum Goaf Based on Energy Dissipation Theory by Yuejin Zhou, Xiaoding Xu, Xiaotong Li, Meng Li, Yugui Yang

    Published 2018-01-01
    “…To conclude, energy catastrophe theory can be used to demonstrate the nonlinear mechanical mechanism of support system instability in room-pillar mining goaf.…”
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  11. 5391

    Displacement of hydrocarbon liquids by water using the models of zonally heterogeneous deformable formations by Marat Ya. Khabibullin, Rustem I. Suleymanov, Razifa R. Stepanova, Alina Az. Gizzatullina, Arsen M. Khabibullin

    Published 2025-01-01
    “…It is known that the motion of two-phase hydrocarbon systems in deformable reservoirs is represented by complex nonlinear partial differential equations. An analytical solution of such equations is possible only with the use of special approaches. …”
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  12. 5392

    Acoustic Emission Characteristics and Damage Evolution Analysis of Sandstone under Three-Point Bending Test by Tao Qin, Chen Jiang, Yanwei Duan, Yiwei Wang, Chao Ju

    Published 2023-01-01
    “…The peak frequency shows a linear increase after a spike and then an accelerated increase to a rupture, and the boundary point between the spike and the linear and nonlinear can be obtained. The decrease in R value can indicate that the main crack is growing in the specimen. …”
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  13. 5393

    Association between sleep duration and risk of nonalcoholic fatty liver disease: A systematic review and meta-analysis by Kasra Pirahesh, Ali Zarrinnia, Leila Nikniaz, Zeinab Nikniaz

    Published 2025-02-01
    “…The results of the dose-response meta-analysis do not suggest a linear or nonlinear relationship between sleep duration and NAFLD (p-value = 0.9). …”
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  14. 5394

    Association between drinking patterns and diabetic kidney disease in United States adults: a cross-sectional study based on data from NHANES 1999–2016 by Xusheng Yang

    Published 2025-12-01
    “…Conversely, moderate drinking frequency (3–4 days per week, 2–5 days per month, 3–126 days per year) was associated with a reduced DKD risk (OR = 0.67, 95% CI, 0.49–0.91; OR = 0.75, 95% CI, 0.56–0.99, OR = 0.71, 95% CI, 0.58–0.86, respectively). A nonlinear association was observed between alcohol consumption frequency and DKD in terms of weekly and yearly drinking days.Conclusion This study highlights the importance of drinking behavior in the management of diabetic kidney disease. …”
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  15. 5395

    Association between weight-adjusted-waist index and serum anti-aging protein α-Klotho in U.S. adults: Evidence from NHANES 2007–2016 by Zujun Wen, Xiang Liu, Tingting Zhang, Junhai Zhang, Zhicong Zou, Shuncheng Jiang, Shusi Li

    Published 2025-02-01
    “…Smoothed curve fitting was utilized to investigate the nonlinear connection. In addition, interaction tests and other subgroup analyses were carried out. …”
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  16. 5396

    Traffic flow modelling of vehicles on a six lane freeway: Comparative analysis of improved group method of data handling and artificial neural network model by Isaac Oyeyemi Olayode, Alessandro Severino, Frimpong Justice Alex, Elmira Jamei

    Published 2025-03-01
    “…The results indicate that both models can effectively capture the nonlinear relationships present in the traffic flow of vehicles on a six-lane freeway. …”
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    Article
  17. 5397

    Collaborative Development of Feedback Concept Maps for Virtual Patient–Based Clinical Reasoning Education: Mixed Methods Study by Anja Mayer, Inga Hege, Andrzej A Kononowicz, Anja Müller, Małgorzata Sudacka

    Published 2025-01-01
    “…However, as CR is a nonlinear process, feedback concept maps that are created together by several individuals might address this issue and cover perspectives from different health professionals. …”
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  18. 5398

    Comparison of the Applicability of Two Reanalysis Products in Estimating Tall Tower Wind Based on Multiple Linear Regression and Artificial Neural Network in South China by Xiangxiang Li, Xiaochen Qin, Jun Yang, Weiming Xu

    Published 2022-01-01
    “…For each TTO, linear and nonlinear downscaling techniques, namely, multiple linear regression (MLR) and an artificial neural network (ANN), respectively, were adopted for the downscaling of the scalar wind speed and the corresponding U/V components. …”
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  19. 5399

    Magnetic Field Effects on Convective Heat Transfer of Ferrofluid from a Heated Sphere in Porous Media by Ayesha Aktar, Sharaban Thohura, Md. Mamun Molla

    Published 2025-05-01
    “…The dimensional governing boundary layer equations are initially transformed into a convenient non-dimensional form utilizing the non-dimensional variables. The resulting nonlinear systems of equations are then numerically solved inside the computing domain into a regular rectangle using the effective Finite Difference Method (FDM).  …”
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  20. 5400