Results 71 to 80 of about 2,343,705 (241)

Conservation Laws for a Variable Coefficient Variant Boussinesq System

open access: yesAbstract and Applied Analysis, 2014
We construct the conservation laws for a variable coefficient variant Boussinesq system, which is a third-order system of two partial differential equations. This system does not have a Lagrangian and so we transform it to a system of fourth-order, which
Ben Muatjetjeja, Chaudry Masood Khalique
doaj   +1 more source

Pointlike Material Accumulation and Displacement in Azopolymer Thin Films Driven by Spatial Light Modulation

open access: yesAdvanced Optical Materials, EarlyView.
A maskless, SLM‐driven approach enables the deterministic inscription of arbitrary topographical features in azopolymer films by mapping complex vectorial light fields onto local viscoplastic stress. This platform allows for the rapid generation and dynamic erasure of high‐aspect‐ratio micro‐spikes, offering a versatile tool for reconfigurable flat ...
Jonas Strobelt   +3 more
wiley   +1 more source

Reflection parity and space-time parity photonic conservation laws in parametric nonlinear optics

open access: yesPhysical Review Research
Conservation laws are some of the most generic and useful concepts in physics. In nonlinear optical parametric processes, conservation of photonic energy, momenta and parity often lead to selection rules, restricting the allowed polarization and ...
Gavriel Lerner   +4 more
doaj   +1 more source

On New Conservation Laws of Fin Equation

open access: yesAdvances in Mathematical Physics, 2014
We study the new conservation forms of the nonlinear fin equation in mathematical physics. In this study, first, Lie point symmetries of the fin equation are identified and classified.
Gülden Gün Polat   +2 more
doaj   +1 more source

Restless bandits, partial conservation laws and indexability [PDF]

open access: yes
We show that if performance measures in a stochastic scheduling problem satisfy a set of so-called partial conservation laws (PCL), which extend previously studied generalized conservation laws (GCL), then the problem is solved optimally by a priority ...
José Niño-Mora
core  

Spectral Volume Method: application to Euler equations and performance appraisal [PDF]

open access: yes, 2010
The compact high-order "Spectral Volume Method" designed for conservation laws on unstructured grids is presented. Its spectral reconstruction is exposed briefly and its applications to the Euler equations are presented through several test cases to ...
Chikhaoui, Oussama   +2 more
core  

Hyperuniform Disorder in Photonic Crystal Slabs With Intrinsic Non‐Hermiticity

open access: yesAdvanced Optical Materials, EarlyView.
Light propagation in photonic crystal slabs with imposed hyperuniform disorder is investigated theoretically and numerically. The hyperuniform disorder is imposed by varying the hole size. The photonic crystal is intrinsically non‐Hermitian due to radiative loss, with non‐Hermiticity appearing as a complex effective mass of a quadratic photonic band ...
Zeyu Zhang   +3 more
wiley   +1 more source

Conservation in Kansas

open access: yes, 2011
Report covers Fiscal Year 2010 and 2011, with planned activities listed for Fiscal Year 2012.<br>Continues title: Soil conservation in Kansas which previously was continued by: Conservation in ...
Kansas. State Conservation Commission
core   +1 more source

Symmetries and conservation laws

open access: yes, 2009
Conservation laws play an important role in science. The aim of this thesis is to provide an overview and develop new methods for constructing conservation laws using Lie group theory.
Khamitova, Raisa
core   +2 more sources

Assessment of the Spectral Volume Method on inviscid and viscous flows [PDF]

open access: yes, 2010
The compact high-order "Spectral Volume Method" designed for conservation laws on unstructured grids is presented. Its spectral reconstruction is exposed briefly and its applications to the Euler equations are presented through several test cases to ...
Chikhaoui, Oussama   +2 more
core  

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