Results 71 to 80 of about 14,134,355 (324)

Particle trajectories beneath wave-current interaction in a two-dimensional field [PDF]

open access: yesNonlinear Processes in Geophysics, 2012
Within the Lagrangian reference framework we present a third-order trajectory solution for water particles in a two-dimensional wave-current interaction flow.
Y.-Y. Chen, H.-C. Hsu, H.-H. Hwung
doaj   +1 more source

An equivalence of Finslerian relativistic theories

open access: yes, 2015
In Lorentz-Finsler geometry it is natural to define the Finsler Lagrangian over a cone (Asanov's approach) or over the whole slit tangent bundle (Beem's approach).
Minguzzi, E.
core   +1 more source

Dynamically Generated Open and Hidden Charm Meson Systems [PDF]

open access: yes, 2006
We will study open and hidden charm scalar meson resonances within two different models. The first one is a direct application of a chiral Lagrangian already used to study flavor symmetry breaking in Skyrme models. In another approach to the problem a SU(
A. A. Petrov   +4 more
core   +5 more sources

Stochastic Lagrangian Approach for Wind Farm Simulation [PDF]

open access: yes, 2018
We present a stochastic Lagrangian approach for atmospheric boundary layer simulation. Based on a turbulent-fluid-particle model, a stochastic Lagrangian particle approach could be an advantageous alternative for some applications, in particular in the context of down-scaling simulation and wind farm simulation.
Bossy, Mireille   +4 more
openaire   +3 more sources

Data‐Driven Bulldozer Blade Control for Autonomous Terrain Leveling

open access: yesAdvanced Robotics Research, EarlyView.
A simulation‐driven framework for autonomous bulldozer leveling is presented, combining high‐fidelity terramechanics simulation with a neural‐network‐based reduced‐order model. Gradient‐based optimization enables efficient, low‐level blade control that balances leveling quality and operation time.
Harry Zhang   +5 more
wiley   +1 more source

Symplectic Applicability of Lagrangian Surfaces

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2009
We develop an approach to affine symplectic invariant geometry of Lagrangian surfaces by the method of moving frames. The fundamental invariants of elliptic Lagrangian immersions in affine symplectic four-space are derived together with their ...
Lorenzo Nicolodi, Emilio Musso
doaj   +1 more source

On Lagrangian and vortex-surface fields for flows with Taylor–Green and Kida–Pelz initial conditions [PDF]

open access: yes, 2010
For a strictly inviscid barotropic flow with conservative body forces, the Helmholtz vorticity theorem shows that material or Lagrangian surfaces which are vortex surfaces at time t = 0 remain so for t > 0.
Pullin, D. I., Yang, Yue
core   +1 more source

Lagrangian approach to origami vertex analysis: kinematics

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
The use of origami in engineering has significantly expanded in recent years, spanning deployable structures across scales, folding robotics and mechanical metamaterials. However, finding foldable paths can be a formidable task as the kinematics are determined by a nonlinear system of equations, often with several degrees of freedom.
Matthew Grasinger   +2 more
openaire   +3 more sources

A Perspective on Interactive Theorem Provers in Physics

open access: yesAdvanced Science, EarlyView.
Into an interactive theorem provers (ITPs), one can write mathematical definitions, theorems and proofs, and the correctness of those results is automatically checked. This perspective goes over the best usage of ITPs within physics and motivates the open‐source community run project PhysLean, the aim of which is to be a library for digitalized physics
Joseph Tooby‐Smith
wiley   +1 more source

Insights into the three-dimensional Lagrangian geometry of the Antarctic polar vortex [PDF]

open access: yesNonlinear Processes in Geophysics, 2017
In this paper we study the three-dimensional (3-D) Lagrangian structures in the stratospheric polar vortex (SPV) above Antarctica. We analyse and visualize these structures using Lagrangian descriptor function M.
J. Curbelo   +7 more
doaj   +1 more source

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