Results 11 to 20 of about 116,934 (311)

Effective Hamiltonians and Averaging¶for Hamiltonian Dynamics II [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Evans, L. C., Gomes, D.
openaire   +3 more sources

Distribution of energy in propagation for ocean extreme wave generation in hydrodynamics laboratory [PDF]

open access: yesGlobal Journal of Environmental Science and Management, 2021
BACKGROUND AND OBJECTIVES: The hydrodynamic uncertainty of the ocean is the reason for testing marine structures as an initial consideration. This uncertainty has an impact on the natural structure of the topography as well as marine habitats.
D. Fadhiliani   +4 more
doaj   +1 more source

Smooth-Switching Control of Robot-Based Permanent-Magnet Synchronous Motors via Port-Controlled Hamiltonian and Feedback Linearization

open access: yesEnergies, 2020
To solve the contradiction between dynamic performance and steady-state performance of the robot system, a smooth-switching control strategy is proposed.
Anxing Liu, Haisheng Yu
doaj   +1 more source

Dynamic properties of the attachment oscillator arising in the nanophysics

open access: yesOpen Physics, 2023
The attachment oscillator, which plays an important role in the nanophysics such as nano/microelectromechanical systems, molecular devices, and nanofibers, is studied in this work.
Wang Kang-Jia, Si Jing
doaj   +1 more source

Some notes on port-Hamiltonian systems on Banach spaces [PDF]

open access: yes, 2021
We consider port-Hamiltonian systems from a functional analytic perspective. Dirac structures and Hamiltonians on Banach spaces are introduced, and an energy balance is proven.
Reis, Timo
core   +1 more source

An Energy Consistent Discretization of the Nonhydrostatic Equations in Primitive Variables

open access: yesJournal of Advances in Modeling Earth Systems, 2020
We derive a formulation of the nonhydrostatic equations in spherical geometry with a Lorenz staggered vertical discretization. The combination conserves a discrete energy in exact time integration when coupled with a mimetic horizontal discretization ...
Mark A. Taylor   +5 more
doaj   +1 more source

Hamiltonians for curves [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2002
We examine the equilibrium conditions of a curve in space when a local energy penalty is associated with its extrinsic geometrical state characterized by its curvature and torsion. To do this we tailor the theory of deformations to the Frenet-Serret frame of the curve.
Capovilla, R.   +2 more
openaire   +2 more sources

Renormalization of Hamiltonians [PDF]

open access: yesPhysical Review D, 1993
A matrix model of an asymptotically free theory with a bound state is solved using a perturbative similarity renormalization group for hamiltonians. An effective hamiltonian with a small width, calculated including the first three terms in the perturbative expansion, is projected on a small set of effective basis states. The resulting small hamiltonian
, Glazek, , Wilson
openaire   +2 more sources

Linear Hamiltonian behaviors and bilinear differential forms [PDF]

open access: yes, 2004
We study linear Hamiltonian systems using bilinear and quadratic differential forms. Such a representation-free approach allows us to use the same concepts and techniques to deal with systems isolated from their environment and with systems subject to ...
Rapisarda, P.   +7 more
core   +1 more source

Thermal buckling and postbuckling of functionally graded multilayer GPL-reinforced composite beams on nonlinear elastic foundations

open access: yesHeliyon, 2023
Under the influence of axial forces and uniform temperature variations, the thermal buckling and postbuckling of composite beams reinforced of functionally graded multilayer graphene platelets (GPLs) resting on nonlinear elastic foundations are examined.
Ying Lv, Jing Zhang, Lianhe Li
doaj   +1 more source

Home - About - Disclaimer - Privacy