Results 11 to 20 of about 163 (116)

Fractional Model of a Fractor

open access: yesIFAC-PapersOnLine
Duarte Valerio   +1 more
exaly   +2 more sources

Modelling Fractional Advection–Diffusion Processes via the Adomian Decomposition

open access: yesMathematics, 2023
When treating geomaterials, fractional derivatives are used to model anomalous dispersion or diffusion phenomena that occur when the mass transport media are anisotropic, which is generally the case.
Alberto Antonini   +1 more
doaj   +1 more source

A New Look at the Capacitor Theory

open access: yesFractal and Fractional, 2023
The mathematical description of the charging process of time-varying capacitors is reviewed and a new formulation is proposed. For it, suitable fractional derivatives are described.
Manuel Duarte Ortigueira   +3 more
doaj   +1 more source

Switching cost and store choice

open access: yesAmerican Journal of Agricultural Economics, Volume 105, Issue 1, Page 195-218, January 2023., 2023
Abstract Switching costs are generally regarded as anticompetitive as firms can raise prices to “locked‐in” consumers, at least up to the cost of switching to a lower‐priced alternative. However, there is some evidence, both theoretical and empirical, that tends to show the opposite.
Timothy J. Richards, Jura Liaukonytė
wiley   +1 more source

PRICE‐PARITY ADJUSTMENTS SHOULDN'T BE A TRADE SECRET: STATE‐LEVEL PRICE PARITY AND ASSESSMENT OF COVENANTS NOT TO COMPETE ENFORCEABILITY

open access: yesContemporary Economic Policy, Volume 39, Issue 1, Page 220-235, January 2021., 2021
This paper demonstrates the importance of making regional cost adjustments and questions the validity of papers using nationwide compensation to assess noncompete enforceability and other policies without regional price‐level adjustments. Numerous papers in recent years do not incorporate the cross‐sectional analog to inflation adjustments.
Laurel J. Fish   +2 more
wiley   +1 more source

Geothermal Fluid Variation Recorded by Banded Ca‐Carbonate Veins in a Fault‐Related, Fissure Ridge‐Type Travertine Depositional System (Iano, southern Tuscany, Italy)

open access: yesGeofluids, Volume 2021, Issue 1, 2021., 2021
Banded Ca‐carbonate veins in travertine deposits are efficient recorders of the compositional fluctuations of geothermal fluids flowing (or flowed) from deep reservoirs up to the surface, within fault zones. In this view, these veins represent key tools for decoding those factors that influenced the geochemical variations.
Paola Francesca Matera   +11 more
wiley   +1 more source

Relative Permeability of Porous Media with Nonuniform Pores

open access: yesGeofluids, Volume 2020, Issue 1, 2020., 2020
Most classical predictive models of relative permeability conceptualize the pores in porous media as assemblies of uniform capillary tubes with different sizes. However, this simplification may overestimate the transport capacity of porous media due to overlooking the effects of the pore nonuniformity.
He Chen   +4 more
wiley   +1 more source

Application of multivariate analysis of vari-ance (MANOVA) to distance refractive vari-ability and mean distance refractive state

open access: yesAfrican Vision and Eye Health, 2006
Refractive state can be regarded as a dynam-ic quantity. Multiple measurements of refractive state can be determined easily and rapidly on a number of different occasions using an autore-fractor.
S Abelman
doaj   +1 more source

Approximation Solution of Fractional Partial Differential Equations by Neural Networks

open access: yesAdvances in Numerical Analysis, Volume 2012, Issue 1, 2012., 2012
Neural networks with radial basis functions method are used to solve a class of initial boundary value of fractional partial differential equations with variable coefficients on a finite domain. It takes the case where a left‐handed or right‐handed fractional spatial derivative may be present in the partial differential equations.
Adel A. S. Almarashi, Muhammed I. Syam
wiley   +1 more source

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