Showing 5,941 - 5,960 results of 6,894 for search '"nonlinear"', query time: 0.09s Refine Results
  1. 5941
  2. 5942

    A QSAR Study Based on SVM for the Compound of Hydroxyl Benzoic Esters by Li Wen, Qing Li, Wei Li, Qiao Cai, Yong-Ming Cai

    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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    Article
  3. 5943

    Numerical and Experimental Study of Friction Damping Blade Attachments of Rotating Bladed Disks by D. Charleux, C. Gibert, F. Thouverez, J. Dupeux

    Published 2006-01-01
    “…An efficient multiharmonic balance method is proposed in order to compute the forced response of bladed disks with contact and friction nonlinearities in blade roots. For experimental validation purposes, a rotating bladed disk was tested in a vacuum chamber, with excitation being provided by piezoelectric actuators. …”
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  4. 5944

    Damping Effects Induced by a Mass Moving along a Pendulum by E. Gandino, S. Marchesiello, A. Bellino, A. Fasana, L. Garibaldi

    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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    Article
  5. 5945

    Seismic Performance Assessment of Ordinary Moment Resisting Frame Equipped with Viscous Dampers under Pulse-Like Earthquakes by Amir Yousefpour, Hamid Mazidababdi Farahani, Mohsen Ali Shayanfar

    Published 2022-01-01
    “…In conventional structures, the earthquake-resistant design is based on flexibility after yielding of structural members to provide a loss of earthquake input energy, while, using dampers, the input energy loss can be concentrated in predetermined points to prevent the nonlinear behavior of the main members that are also in the gravity bearing path. …”
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    Article
  6. 5946

    The surface of non-linear rotation by K. L. Panchuk, T. M. Myasoyedova

    Published 2023-11-01
    “…Several propositions, a lemma and a theorem are proved, which allow one to form the initial data in the problem of nonlinear rotation, the solution of which is the parametric equations of smooth surfaces. …”
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    Article
  7. 5947

    Predictive Modeling and Experimental Analysis of Cyclic Shear Behavior in Sand–Fly Ash Mixtures by Özgür Yıldız, Ali Fırat Çabalar

    Published 2025-01-01
    “…To enhance the understanding of cyclic shear behavior, a Nonlinear Autoregressive Model with External Input (NARX) model was employed. …”
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    Article
  8. 5948

    Train-Bridge Dynamic Behaviour of Long-Span Asymmetrical-Stiffness Cable-Stayed Bridge by Yuexing Wu, Jianting Zhou, Jinquan Zhang, Qiang Wen, Xuan Li

    Published 2021-01-01
    “…Primarily, considering the comprehensive index of frequency difference and modal assurance criterion (MAC), a nonlinear model updating technique (NMUT) based on penalty function theory is proposed, which can be used to optimize the bridge numerical model. …”
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    Article
  9. 5949

    Ultra‐short‐term versus short‐term measures of heart rate variability in specialist police units: A pilot reliability study by Colin D. Tomes, Elisa F. D. Canetti, Ben Schram, Robin Orr

    Published 2025-01-01
    “…However, this study confirms the robust quality of nonlinear HRV analysis, as the SD1 value demonstrated the highest ICC reported here (0.902). …”
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    Article
  10. 5950

    The Eruptive Duality of a Filament on 2023 April 21 by Yue Fang, Jun Zhang

    Published 2025-01-01
    “…During S1 eruption and activation, S2 remained stable. Nonlinear force-free field extrapolation shows that the footpoints of the magnetic field lines overlying WS1 are rooted on the flare ribbons, while the field lines overlying ES1, which share a negative field with other lines, correspond to the stable EUV loops. …”
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    Article
  11. 5951

    Effects of Paper-Mill Sludge as a Mulch versus Topsoil Incorporation on Potassium Uptake and the Grain Yield of Rain-Fed Wheat in a High Specific Surface Loess Soil with Illite Dom... by S. Amini, S. A. R. Movahedi Naeini, K. Mashayekhi

    Published 2012-01-01
    “…A very high Gapon selectivity coefficient (KG) for K exchange against Ca + Mg (16.58 (L/mole)0.5) produced a nonlinear normalized exchange isotherm in favor of potassium with these soils containing high illite. …”
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  12. 5952

    Distorting Electrical Power of the Alternating Current in the Simplest Circuit with a Diode by O. V. Bialobrzheskyi, D. Y. Rod`kin

    Published 2019-10-01
    “…The development of electric power industry is accompanied by an increase in the number of consumers subjected to loads with nonlinear characteristics. The arising problem of the distortion of electrical energy that takes place when the mentioned consumers are in operation is partially solved by using means of improving the quality of electrical energy. …”
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  13. 5953

    The Effect of Delay Techniques on a Lassa Fever Epidemic Model by Ali Raza, Eugenio Rocha, Emad Fadhal, Rashid I. H. Ibrahim, Eman Afkar, Muhammad Bilal

    Published 2024-01-01
    “…By introducing a delay parameter and decay exponential term into the existing model in the literature, we got the system of highly nonlinear delay differential equations (DDEs). The fundamental properties such as positivity, boundedness, existence, and uniqueness are verified for the said model. …”
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  14. 5954

    Modeling of masonry infilled RC frames with different aspect ratios using plastic hinge and equivalent strut by Ahmed M. El-Kholy, Sayed M. Sayed, Mohamed M. El-Assaly, Mohamed K. Ismail

    Published 2025-02-01
    “…The proposed approach models the plasticity in the beams and columns of the reinforced concrete (RC) frames using flexural plastic hinges while modeling the masonry panel as a nonlinear equivalent strut. The implementation of the hinge is based on discretizing the frame cross-section into fibers and utilizing a popular formula to estimate the plastic hinge length specific to masonry-infilled frames. …”
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    Article
  15. 5955

    An Automated Approach for Epilepsy Detection Based on Tunable Q-Wavelet and Firefly Feature Selection Algorithm by Ahmed I. Sharaf, Mohamed Abu El-Soud, Ibrahim M. El-Henawy

    Published 2018-01-01
    “…The first perspectives consider the EEG signal as a nonlinear time series. A tunable Q-wavelet is applied to decompose the signal into smaller segments called subbands. …”
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  16. 5956

    Crack Initiation, Propagation, and Failure Characteristics of Jointed Rock or Rock-Like Specimens: A Review by Ri-hong Cao, Ping Cao, Hang Lin, Xiang Fan, Chunyang Zhang, Taoying Liu

    Published 2019-01-01
    “…Because the deformation or failure process of jointed rock mass exhibits strongly nonlinear characteristics, it is also very difficult to predict the strength and failure modes of the rock mass. …”
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    Article
  17. 5957

    Optimization of Solar Hybrid Power Generation Using Conductance-Fuzzy Dual-Mode Control Method by S. Ramesh, J. Seetha, G. Ramkumar, Satyajeet Sahoo, T. M. Amirthalakshmi, A. Ranjith, Asiful H. Seikh, Sohail M. A. Khan Mohammed, Ram Subbiah

    Published 2022-01-01
    “…This study’s approach incorporates a decentralized power generation system with a HESS while increasing electrical output in phases utilizing a dynamic reactive power compensation scheme and a conductance-fuzzy dual-mode control strategy. Due to a nonlinear behavior of photovoltaic (PV) devices’ power output, maximum power point tracking (MPPT) methods must be used to create the greatest power. …”
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    Article
  18. 5958

    Investigating continuous intention to use metaverse in higher education institutions: a dual-staged structural equation modeling-artificial neural network approach by Reham Adel Ali, Mohamed Soliman, Muhammad Roflee Weahama, Muhammadafeefee Assalihee, Imran Mahmud

    Published 2025-01-01
    “…Using a hybrid approach that consists of partial least squares structural equation modeling (PLS-SEM) and an artificial neural network (ANN) model, which combines a linear PLS model with compensation and a nonlinear ANN model without compensation, the effect of CI on using the metaverse as a learning platform is investigated. …”
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  19. 5959

    Relationship between METS-IR and ABSI index and the prevalence of nocturia: a cross-sectional analysis from the 2005–2020 NHANES data by Fei Xue, Yating Zhou

    Published 2024-12-01
    “…Subgroup analyses showed a stronger association between ABSI and nocturia among individuals living alone and those aged 20–38 years. Nonlinear modeling indicated a threshold effect for ABSI, with nocturia risk significantly increasing when ABSI exceeded 76.2. …”
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  20. 5960

    Model analysis for an HIV infectious disease using elasticity and sensitivity techniques by Honar J. Hamad, Sarbaz H. A. Khoshnaw, Muhammad Shahzad

    Published 2024-07-01
    “…The model includes a class of nonlinear ordinary differential equations, and has both infection-free and endemic infection equilibrium points. …”
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    Article