Results 21 to 30 of about 15,981,515 (305)
Alexandria Engineering Journal, 2022 This article explores the planar motion of a novel dynamical system of three degrees of freedom (DOF) triple pendulum, consisting of a double rigid pendulum attached to an un-stretched one, in which its suspension point is considered to be fixed ...
S.A. Abdelhfeez +3 more
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Metric Based Upscaling for Partial Differential Equations with a Continuum of Scales [PDF]
, 2007 Numerical upscaling of problems with multiple scale structures have attracted increasing attention in recent years. In particular, problems with non-separable scales pose a great challenge to mathematical analysis and simulation.
Zhang, Lei
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Corner Detection Using Multi-directional Structure Tensor with Multiple Scales
, 2020 Corners are important features for image analysis and computer vision tasks. Local structure tensors with multiple scales are widely used in intensity-based corner detectors.
Zhang, W, Sun, C
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Analytical solution of nonlinear rolling motion of ship using the method of multiple scales [PDF]
مجله مدل سازی در مهندسی, 2017 In this research, the nonlinear rolling motion of ships is studied. After obtaining the governing equation of roll motion, the method of multiple scales perturbation technique is applied to solve the nonlinear differential equation.
Mohammad Mahdi Jalili +2 more
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A note on the method of multiple scales [PDF]
Quarterly of Applied Mathematics, 1980 A modification of the method of multiple scales makes use of the expansion of parameters of the system in order to remove undesirable characteristics of the solution obtained by the usual multiple-scale method. When applied to the damped harmonic oscillator, the modification leads to the exact solution.
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Nonlinear vibration analysis of axially moving strings in thermal environment [PDF]
Journal of Theoretical and Applied Vibration and Acoustics, 2018 In this study, nonlinear vibration of axially moving strings in thermal environment is investigated. The vibration haracteristics of the system such as natural frequencies, time domain response and stability states are studied at different temperatures ...
Hassan Nahvi, Hosein Amani, Reza Tikani
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Journal of Rock Mechanics and Geotechnical Engineering, 2020 The greatest challenges of rigorously modeling coupled hydro-mechanical (HM) processes in fractured geological media at different scales are associated with computational geometry.
Mengsu Hu, Jonny Rutqvist
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Modelling multiple time-scales with flexible parametric survival models
BMC Medical Research Methodology, 2022 Background There are situations when we need to model multiple time-scales in survival analysis. A usual approach in this setting would involve fitting Cox or Poisson models to a time-split dataset.
Nurgul Batyrbekova +7 more
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Valuation of environmental public goods and services at different spatial scales: a review [PDF]
, 2010 To manage environmental problems in an adequate way, it is essential to take different spatial scales into consideration. As a tool for decision making, it would be beneficial if valuation methods take spatial scales into account as well. In this article,
S. Uiterkamp, Anton, +17 more
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MathematicsThis study presents a numerical and analytical investigation of the nonlinear smooth-discontinuous (SD) oscillator. The nonlinear restoring force is approximated by a fifth-order polynomial using a Taylor series expansion to simplify the governing ...
Khalid Alluhydan, M. N. Abd EL-Salam
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