Results 21 to 30 of about 302,470 (301)

Control of String Vibrations by Displacement of One End with the Other End Fixed, Given the Deflection Form at an Intermediate Moment of Time

open access: yesAxioms, 2022
We consider a boundary control problem for the equation of string vibration with given initial and final conditions, given the deflection form at an intermediate moment of time.
Vanya Barseghyan, Svetlana Solodusha
doaj   +1 more source

How Can We Manage Repairing a Broken Finite Vibrating String? Formulations of the Problem

open access: yesJournal of Optimization, Differential Equations and Their Applications, 2023
Three approaches to solve a well-known IBVP posed for vibrating composite string with piece-wise constant properties have been applied. The main issue of the stufy is the number of the matching conditions to be imposed for the solution to the IBVP to be ...
Vladimir L. Borsch, Peter I. Kogut
doaj   +1 more source

Modeling of cylindrical composite shell structures based on the Reissner’s Mixed Variational Theorem with a variable separation method

open access: yesAdvanced Modeling and Simulation in Engineering Sciences, 2019
This work deals with the modeling of laminated composite and sandwich shells through a variable separation approach based on a Reissner’s Variational Mixed Theorem (RMVT).
Philippe Vidal   +3 more
doaj   +1 more source

On the Optimal Control Problem for Vibrations of the Rod/String Consisting of Two Non-Homogeneous Sections with the Condition at an Intermediate Time

open access: yesMathematics, 2022
We consider an optimal boundary control problem for a one-dimensional wave equation consisting of two non-homogenous segments with piecewise constant characteristics. The wave equation describes the longitudinal vibrations of a non-homogeneous rod or the
Vanya Barseghyan, Svetlana Solodusha
doaj   +1 more source

Separation of Variables [PDF]

open access: yesProgress of Theoretical Physics Supplement, 1995
33 pages, harvmac, no ...
openaire   +2 more sources

Solutions of the mass continuity equation in hollow fibers for fully developed flow with some notes on the Lévêque correlation

open access: yesCarbon Capture Science & Technology, 2022
: In this study a historical perspective of the mass continuity equation for fully developed laminar flow in the lumen side of a hollow-fiber membrane contactor is presented with respect to the lumen-wall boundary condition (BC).
Grigorios Pantoleontos   +3 more
doaj   +1 more source

Inductance of cylindrical coil [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2004
The cylindrical coreless and bar core coils are used in instrument transformers and many other electromagnetic devices. In the paper, using the separation of variables an analytical formula for the leakage inductance of thin cylindrical coil with ...
Cividjian G.A., Dolan A., Pãduraru N.
doaj   +1 more source

Separation of Sets of Variables in Quantum Mechanics [PDF]

open access: yes, 1964
Separation of the Schroedinger equation for molecular dynamics into sets of variables can sometimes be performed when separation into individual variables is neither possible nor, for certain purposes, necessary.
Marcus, R. A., R. A. Marcus
core   +1 more source

Shape invariance and SUSY separation of variables

open access: yesEPJ Web of Conferences, 2016
The main ingredients of conventional Supersymmetrical Quantum Mechanics (SUSY QM) are presented. The generalization with supercharges of second order in derivatives - Second Order SUSY - is formulated, and the property of shape invariance is defined. The
Ioffe M.V.   +2 more
doaj   +1 more source

Action-angle variables for the Lie–Poisson Hamiltonian systems associated with the Hirota–Satsuma modified Boussinesq equation

open access: yesFrontiers in Physics, 2023
In this work, we present two finite-dimensional Lie–Poisson Hamiltonian systems associated with the Hirota–Satsuma modified Boussinesq equation by using the nonlinearization method. Moreover, the separation of variables on the common level set of Casimir
Xue Geng, Dianlou Du, Xianguo Geng
doaj   +1 more source

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