Results 81 to 90 of about 1,679 (224)

Natural Frequency Response of FG-CNT Coupled Curved Beams in Thermal Conditions

Applied Sciences
This study investigates the sensitivity of dynamic properties in coupled curved beams reinforced with carbon nanotubes (CNTs) to thermal variations. Temperature-dependent (TD) mechanical properties are considered for poly methyl methacrylate (PMMA) to be
Amir R. Masoodi, Moein Alreza Ghandehari, Francesco Tornabene, Rossana Dimitri   +3 more
doaj   +1 more source

Analysis of the fractional scattering contribution in the forward peak for multicomponent systems

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Derivation and justification of mixing rules for multicomponent systems. A novel formulation of the delta‐Eddington scaling rule. Analytical guidance for comparing radiative transfer results. Abstract The widely used δ‐Eddington approximation improves the accuracy of radiative transfer calculations by representing the fraction of scattering into the ...
Jiangnan Li, Yue Cai
wiley   +1 more source

Numerical approximation of time-fractional nonlinear partial integro-differential equation using fractional Euler and cubic trigonometric B-Spline methods

Partial Differential Equations in Applied Mathematics
Nonlinear mathematical problems arise due to existence of important complex nonlinear phenomena in engineering and science. In this article, a class of time-fractional nonlinear parabolic partial integro-differential equations is solved numerically by ...
Mehwish Saleem, Arshed Ali, Fazal-i-Haq, Hassan Khan   +3 more
doaj   +1 more source

Enhancing Reference Tracking in Induction Motor Drives: A Hybrid Model Predictive Control and Artificial Neural Network Approach

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Induction motors (IMs) are widely used in industry for their robustness and cost‐effectiveness, yet their nonlinear and multivariable dynamics pose significant challenges for high‐performance speed control. Model Predictive Control (MPC) is a well‐established solution but suffers from limitations related to model accuracy and parameter ...
Asier del Rio, Oscar Barambones, Eneko Artetxe, Jokin Uralde, Isidro Calvo   +4 more
wiley   +1 more source

On multilevel quadrature for elliptic stochastic partial differential equations

, 2013
In this article, we show that the multilevel Monte Carlo method for elliptic stochastic partial differential equations can be interpreted as a sparse grid approximation. By using this interpretation, the method can straightforwardly be generalized to any
Peters, Michael, Siebenmorgen, Markus, Harbrecht, Helmut   +2 more
core  

Distributed Approximating Functional Approach to Burgers\u2019 Equation using Element Differential Quadrature Method [PDF]

, 2013
This paper presents a computationally efficient and an accurate methodology in differential quadrature element method (EDQM) analysis of the nonlinear one-dimensional Burgers\u2019 equation.
Vagheefi, M., Rahideh, H., Manshad, A.K., Golbahar, Haghighi   +3 more
core  

Fractional Quadrature rule and using its Exactness for the Müntz-Legendre Scaling Functions for Solving Fractional Differential Equations

CoRR
Fractional operators (derivatives/integrals) are defined via the integration of the functions. When the function is produced by a spanning set of fractional power functions, traditional quadrature rules often need to be revised, failing to provide exact evaluations for fractional power functions and thus introducing approximation errors. In this paper,
Ritu Kumari, Mani Mehra, Abhishek Kumar Singh 0002   +2 more
openaire   +2 more sources

AI‐enabled bumpless transfer control strategy for legged robot with hybrid energy storage system

CAAI Transactions on Intelligence Technology, EarlyView.
Abstract Designing Hybrid energy storage system (HESS) for a legged robot is significant to improve the motion performance and energy efficiency of the robot. However, switching between the driving mode and regenerative braking mode in the HESS may generate a torque bump, which has brought significant challenges to the stability of the robot locomotion.
Zhiwu Huang, Zi Yu, Hui Peng, Zixuan Wang, Xiaokang Dai, Weirong Liu, Jing Wang   +6 more
wiley   +1 more source

Sagittal collimating diaboloid: a new grazing‐incidence mirror surface for higher‐throughput resonant inelastic X‐ray scattering spectrometers

Journal of Synchrotron Radiation, EarlyView.
We present the analytic equations for a new grazing‐incidence mirror surface, a sagittal collimating diaboloid, and illustrate its advantages for higher‐throughput soft X‐ray spectrometer design.A major challenge in soft X‐ray spectroscopy is the efficient collection of the emitted X‐rays by grazing‐incidence mirrors.
Joseph Dvorak, Lei Huang, Mourad Idir
wiley   +1 more source

Preemptive Entry and Technology Diffusion: The Market for Drive‐In Theaters

The RAND Journal of Economics, EarlyView.
ABSTRACT This article studies entry preemption in new industries. We first test a key prediction of dynamic entry games: Entry preemption is most relevant in intermediate‐sized markets, where firms face highest uncertainty about future entry. Using US drive‐in theater market (1945–1957) data, we find robust evidence for this non‐monotonic relationship ...
Ricard Gil, Jean‐François Houde, Shilong Sun, Yuya Takahashi   +3 more
wiley   +1 more source