Results 21 to 30 of about 219,479 (266)

Dynamic Model of Hip and Ankle Joints Loading during Working with a Motorized Backpack Sprayer [PDF]

open access: yesJournal of Agricultural Machinery
The main objective of this paper is to develop a seven-link dynamic model of the operator’s body while working with a motorized backpack sprayer. This model includes the coordinates of the sprayer relative to the body, the rotational inertia of the
S. Karimi Avargani   +3 more
doaj   +1 more source

Numerical Solution of Fractional Volterra-Fredholm Integro-Differential Equation Using Lagrange Polynomials

open access: yesمجلة بغداد للعلوم, 2020
In this study, a new technique is considered for solving linear fractional Volterra-Fredholm integro-differential equations (LFVFIDE's) with fractional derivative qualified in the Caputo sense.
Nour Salman, Muna Mansour Mustfaf
doaj   +1 more source

A mass formula for light mesons from a potential model [PDF]

open access: yes, 2002
The quark dynamics inside light mesons, except pseudoscalar ones, can be quite well described by a spinless Salpeter equation supplemented by a Cornell interaction (possibly partly vector, partly scalar).
Blask W H   +7 more
core   +1 more source

Lagrange coordinates for the Einstein-Euler equations

open access: yes, 2012
We derive a new symmetric hyperbolic formulation of the Einstein-Euler equations in Lagrange coordinates that are adapted to the Frauendiener-Walton formulation of the Euler equations.
Oliynyk, Todd A.
core   +1 more source

Stochastic fiber dynamics in a spatially semi-discrete setting

open access: yes, 2016
We investigate a spatially discrete surrogate model for the dynamics of a slender, elastic, inextensible fiber in turbulent flows. Deduced from a continuous space-time beam model for which no solution theory is available, it consists of a high ...
Lindner, Felix   +4 more
core   +1 more source

An obstacle problem for a class of Monge-Amp\`ere type functionals

open access: yes, 2012
In this paper we study an obstacle problem for Monge-Amp\`ere type functionals, whose Euler-Lagrange equations are a class of fourth order equations, including the affine maximal surface equations and Abreu's ...
Liu, Jiakun, Zhou, Bin
core   +1 more source

Covariant Lagrange multiplier constrained higher derivative gravity with scalar projectors [PDF]

open access: yes, 2005
We formulate higher derivative gravity with Lagrange multiplier constraint and scalar projectors. Its gauge-fixed formulation as well as vector fields formulation is developed and corresponding spontaneous Lorentz symmetry breaking is investigated.
Abo-Shaeer   +458 more
core   +1 more source

A unifying mechanical equation with applications to non-holonomic constraints and dissipative phenomena [PDF]

open access: yes, 2015
A mechanical covariant equation is introduced which retains all the effectingness of the Lagrange equation while being able to describe in a unified way other phenomena including friction, non-holonomic constraints and energy radiation (Lorentz-Abraham ...
Minguzzi, E.
core   +1 more source

Discrete Integrable Systems and Hodograph Transformations Arising from Motions of Discrete Plane Curves

open access: yes, 2011
We consider integrable discretizations of some soliton equations associated with the motions of plane curves: the Wadati-Konno-Ichikawa elastic beam equation, the complex Dym equation, and the short pulse equation. They are related to the modified KdV or
Ablowitz M J   +30 more
core   +1 more source

The Approximation Solution of Some Calculus of Variation Problems Based Euler-Lagrange Equations [PDF]

open access: yesEngineering and Technology Journal, 2016
The proposed method transforming some of calculus of variation problems into Euler-Lagrange equations, the simplicity and effectiveness of this illustrated through some ...
Zina Khalil Alabacy
doaj   +1 more source

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