Results 51 to 60 of about 2,651 (216)
Path Tracking of Autonomous Vehicle Based on Optimal Control
World Electric Vehicle JournalPath tracking control is a key technology in the research of intelligent vehicles. In the path tracking process of intelligent vehicles, there are multiple constraints and time-varying nonlinear system states.
Bingshuai Wu, Yingjie Liu, Qianqian Wang
doaj +1 more source
Earthquake Spectra, Volume 42, Issue 2, May 2026.We evaluate, select, and describe the ground‐motion models (GMMs) used in the 2025 update of the U.S. National Seismic Hazard Model (NSHM) for Puerto Rico and the U.S. Virgin Islands (PRVI). We identify the most appropriate models that align with GMM selection criteria for use in the PRVI region to improve the accuracy of seismic hazard assessments ...
Kyle B Withers +5 more
wiley +1 more source
The Stability of Pseudospectral-Chebyshev Methods. [PDF]
Mathematics of Computation, 1981 The stability of pseudospectral-Chebyshev methods is demonstrated for parabolic and hyperbolic problems with variable coefficients. The choice of collocation points is discussed. Numerical examples are given for the case of variable coefficient hyperbolic equations.
openaire +3 more sources
Forward and Adjoint Calculations of Gravitational Potential in Heterogeneous, Aspherical Planets
Earth and Space Science, Volume 13, Issue 5, May 2026.Abstract We have developed a computational package for the calculation of numerically exact internal and external gravitational potential, its functional derivatives and sensitivity kernels, in an aspherical, heterogeneous planet. We detail our implementation, utilizing a transformation of the Poisson equation into a spherical reference domain, as well
Alex D. C. Myhill +2 more
wiley +1 more source
Optimal Lane Changing Problem of Vehicle Handling Inverse Dynamics Based on Mesh Refinement Method
IEEE Access, 2023 This paper proposes a new optimal control method to solve traffic accidents such as vehicle collisions during driver’s conscious lane changing under the dangerous state of highway driving and meet the requirements of safety and comfort during ...
Yingjie Liu, Dawei Cui, Wen Peng
doaj +1 more source
Water Resources Research, Volume 62, Issue 5, May 2026.Abstract Sediment transport in rivers and channels can be understood as a diffusive phenomenon, where sediment particles separate as they move downstream. This diffusive behavior can be Fickian or anomalous (superdiffusive, subdiffusive, ballistic, etc.), depending on the time evolution of the sediment displacement variance.
Christian González +5 more
wiley +1 more source
An enhanced pseudospectral Chebyshev method for dissipative partial differential equations
, 2000 We present an enhanced pseudospectral Chebyshev method based on a postprocess previously introduced for the Galerkin method (De Frutos et al., Applied Mathematics and Computation Reports, July 1996). When the regularity of the solution is limited the new
de Frutos, Javier +3 more
core +1 more source
Terminal Velocity Maximization of Air-to-Air Missiles in Agile Turn Phase
MATEC Web of Conferences, 2016 Terminal velocity maximization of air-to-air agile missiles during agile turn phase is studied. It is important to make sure that agile missiles have enough velocity after agile turn stage in order to impact the target.
Kim Min Ki +3 more
doaj +1 more source
Approximation of the Pseudospectral Abscissa via Eigenvalue Perturbation Theory
Numerical Linear Algebra with Applications, Volume 33, Issue 2, April 2026.ABSTRACT Reliable and efficient computation of the pseudospectral abscissa in the large‐scale setting is still not settled. Unlike the small‐scale setting where there are globally convergent criss‐cross algorithms, all algorithms in the large‐scale setting proposed to date are at best locally convergent.
Waqar Ahmed, Emre Mengi
wiley +1 more source
Journal of Geophysical Research: Oceans, Volume 131, Issue 4, April 2026.Abstract We investigate how a topographic slope impacts eddy diffusivities in a two‐layer quasi‐geostrophic model. There are asymmetric effects of retrograde slopes, where the layer interface and the topography tilt in the same direction, and prograde slopes, where the interface and topography tilt in opposite directions.
Miriam F. Sterl +4 more
wiley +1 more source