Results 31 to 40 of about 222,823 (148)

Nonlinear equations with mixed derivatives

Journal of Mathematical Analysis and Applications, 1986
The author describes some aspects of his decomposition method for the discussion of partial differential equations.
openaire   +2 more sources

A derivation of entropy of mixing [PDF]

Radiation Physics and Chemistry (1977), 1984
Abstract A simple method is proposed for obtaining the generally accepted formula of the concentration dependence of entropy in ideal solutions. The derivation, while implying a new definition of ideal mixtures, is independent both of macroscopic material properties and microscopic models.
openaire   +1 more source

Cabibbo mixing in superstring derived standard-like models [PDF]

Physics Letters B, 1993
We examine the problem of generation mixing in realistic superstring derived standard--like models, constructed in the free fermionic formulation. We study the possible sources of family mixing in these models . In a specific model we estimate the Cabibbo angle.
Faraggi, Alon E., Halyo, Edi
openaire   +2 more sources

Mixed-Derivative Total Variation

The formulation of norms on continuous-domain Banach spaces with exact pixel-based discretization is advantageous for solving inverse problems (IPs). In this paper, we investigate a new regularization that is a convex combination of a TV term and the $\M(\R^2)$ norm of mixed derivatives.
Guillemet, Vincent, Unser, Michael
openaire   +2 more sources

Inhibitive effect of azine and diazine derivatives on the corrosion of 316L SS in acidic media

Zaštita Materijala, 2014
The inhibiting effect of some azine and diazine derivatives on the corrosion of cyclic stressed 316L SS specimens in 3 M HCl in the presence of organic derivatives with concentrations (1×10-6 M - 11×10-6 M) at 30oC was studied using weight loss and ...
A.S. Fouda, Desoky A.M. El, A.A. Keshk
doaj   +1 more source

Lyapunov Inequalities for Two Dimensional Fractional Boundary-Value Problems with Mixed Fractional Derivatives

Axioms, 2023
We consider two types of partial fractional differential equations in two dimensions with mixed fractional derivatives. Appropriate Lyapunov-type inequalities are proved, and applications to the certain eigenvalue problems are presented.
Tatiana Odzijewicz
doaj   +1 more source

Formation of Mixed-Ligand Complexes of Pd2+ with Nucleoside 5'-Monophosphates and Some Metal-Ion-Binding Nucleoside Surrogates

Molecules, 2014
Formation of mixed-ligand Pd2+ complexes between canonical nucleoside 5'-monophosphates and five metal-ion-binding nucleoside analogs has been studied by 1H-NMR spectroscopy to test the ability of these nucleoside surrogates to discriminate between ...
Oleg Golubev, Tuomas Lönnberg, Harri Lönnberg   +2 more
doaj   +1 more source

On a Five-Parameter Mittag-Leffler Function and the Corresponding Bivariate Fractional Operators

Fractal and Fractional, 2021
Several extensions of the classical Mittag-Leffler function, including multi-parameter and multivariate versions, have been used to define fractional integral and derivative operators.
Mehmet Ali Özarslan, Arran Fernandez
doaj   +1 more source

Existence of solutions for a system of mixed fractional differential equations

Journal of Taibah University for Science, 2018
The aim of this work is to investigate, by the help of Krasnoselskii's fixed point theorem, the existence of solutions for a system of fractional differential equations involving left and right Riemann–Liouville fractional derivatives.
A. Guezane-Lakoud, S. Ramdane
doaj   +1 more source

Quinazoline Derivatives as Green Corrosion Inhibitors for Carbon Steel in Hydrochloric Acid Solutions

International Journal of Electrochemical Science, 2013
The inhibiting effect of some quinazoline derivatives on the corrosion of carbon steel in 2 M HCl was studied by weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM) and energy ...
A.S. Fouda, A.M. El-desoky, Hala M. Hassan   +2 more
doaj   +1 more source