Results 21 to 30 of about 1,019,090 (317)

On the Numerical Solution of 1D and 2D KdV Equations Using Variational Homotopy Perturbation and Finite Difference Methods

open access: yesMathematics, 2022
The KdV equation has special significance as it describes various physical phenomena. In this paper, we use two methods, namely, a variational homotopy perturbation method and a classical finite-difference method, to solve 1D and 2D KdV equations with ...
Abey Sherif Kelil, Appanah Rao Appadu
doaj   +1 more source

Porphyrin Co(III)-Nitrene Radical Mediated Pathway for Synthesis of o-Aminoazobenzenes

open access: yesMolecules, 2018
Azobenzenes are versatile compounds with a range of applications, including dyes and pigments, food additives, indicators, radical reaction initiators, molecular switches, etc.
Monalisa Goswami, Bas de Bruin
doaj   +1 more source

Semi-Quantitative Evaluation of Asymmetricity of Dialysis Membrane Using Forward and Backward Ultrafiltration

open access: yesMembranes, 2022
Performance of the dialysis membrane is strongly dependent upon the physicochemical structure of the membrane. The objective of this study is to devise a new in vitro evaluation technique to quantify the physicochemical structures of the membrane.
Akihiro C. Yamashita   +5 more
doaj   +1 more source

Quantum Product and Parabolic Orbits in Homogeneous Spaces [PDF]

open access: yes, 2014
Chaput, Manivel, and Perrin proved in [3] a formula describing the quantum product by Schubert classes associated to cominuscule weights in a rational projective homogeneous space X. In the case where X has Picard rank one, we relate this formula to the
Pech, Clelia
core   +1 more source

Intelligent Measurement of Void Fractions in Homogeneous Regime of Two Phase Flows Independent of the Liquid Phase Density Changes

open access: yesFractal and Fractional, 2023
Determining the amount of void fraction of multiphase flows in pipelines of the oil, chemical and petrochemical industries is one of the most important challenges.
Abdullah M. Iliyasu   +4 more
doaj   +1 more source

Mediated homogenization [PDF]

open access: yesPhysical Review A, 2007
Homogenization protocols model the quantum mechanical evolution of a system to a fixed state independently from its initial configuration by repeatedly coupling it with a collection of identical ancillas. Here we analyze these protocols within the formalism of "relaxing" channels providing an easy to check sufficient condition for homogenization.
BURGARTH D, GIOVANNETTI, VITTORIO
openaire   +5 more sources

Sensitive, homogeneous, and label-free protein-probe assay for antibody aggregation and thermal stability studies

open access: yesmAbs, 2021
Protein aggregation is a spontaneous process affected by multiple external and internal properties, such as buffer composition and storage temperature.
Salla Valtonen   +5 more
doaj   +1 more source

Homogeneous Permutations [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2002
There are just five Fraïssé classes of permutations (apart from the trivial class of permutations of a singleton set); these are the identity permutations, reversing permutations, composites (in either order) of these two classes, and all permutations. The paper also discusses infinite generalisations of permutations, and the connection with Fraïssé's ...
openaire   +2 more sources

A method to formulate a dimensionally homogeneous Jacobian of parallel manipulators [PDF]

open access: yes, 2011
This paper presents a general and systematic approach to formulate the dimensionally homogeneous Jacobian, which is an important issue for the dexterity evaluation and dimensional synthesis of f-degrees-of-freedom (DOF) (f ≤ 6) parallel manipulators ...
Huang, Tian   +5 more
core   +1 more source

Theoretical Study of Heat Transfer Effects on Flow Past a Parabolic Started Vertical Plate in the Presence of Chemical Reaction of First Order

open access: yesInternational Journal of Applied Mechanics and Engineering, 2014
An exact solution of an unsteady flow past a parabolic starting motion of an infinite vertical plate with variable temperature and mass diffusion, in the presence of a homogeneous chemical reaction of first order has been studied.
R. Muthucumaraswamy, S. Velmurugan
doaj   +1 more source

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