Now showing items 11-20 of 243
Scaling invariance of the diffusion coefficient in a family of two-dimensional Hamiltonian mappings
We consider a family of two-dimensional nonlinear area-preserving mappings that generalize the Chirikov standard map and model a variety of periodically forced systems. The action variable diffuses in increments whose phase ...
Nickel hydroxide films in contact with an electroactive solution. A study employing electrochemical impedance measurements
(AIRCC Publishing Corporation, 2016-02)
The deactivation of nickel hydroxide films after prolonged storage times without use was studied. This study was carried out in the context of the Rotating Disc Electrode Voltammetry (RDEV) and<br />Electrochemical Impedance ...
Fluorescence correlation spectroscopy experiments to quantify free diffusion coefficients in reaction-diffusion systems: The case of Ca 2 + and its dyes
(American Physical Society, 2017-06)
Many cell signaling pathways involve the diffusion of messengers that bind and unbind to and from intracellular components. Quantifying their net transport rate under different conditions then requires having separate ...
An impedance study about the effect of pH on the electron transport rate at poly(o-aminophenol) film electrodes
(Bentham Science Publishers, 2014-06)
Impedance measurements on poly(o-aminophenol) (POAP) film electrodes in solutions of different pH were carried out. Impedance spectra were interpreted in terms of the modified electron hopping model described in F.J. ...
Plasma transport coefficients: An application of SO(3) group
(Pergamon-elsevier Science LtdOxfordInglaterra, 2011)
Diffusion of a dipolar tracer in a salty surface
(Revista Mexicana de Física, 2009)
The charge transport process at gold electrodes modified by thick nickel hydroxide films. A study employing rotating disc electrode voltammetry in the presence of the Fe(CN)6 3 −/4 − redox couple
(Elsevier Science Sa, 2016-12)
Rotating disc electrode voltammetry (RDEV) was employed to study the transport properties of nickel hydroxide films electrochemically deposited on gold in the presence of the Fe(CN)6 3 −/4 − redox couple. Gold electrodes ...
Effective diffusivity of passive scalars in rotating turbulence
(Amer Physical Soc, 2013-02-25)
We use direct numerical simulations to compute turbulent transport coefficients for passive scalars in turbulent rotating flows. Effective diffusion coefficients in the directions parallel and perpendicular to the ...
Diffusion of Lambda(c) in hot hadronic medium and its impact on Lambda(c)/D ratio
(Amer Physical Soc, 2014-09-17)
The drag and diffusion coefficients of the Lambda(c)(2286 MeV) have been evaluated in the hadronic medium which is expected to be formed in the later stages of the evolving fireball produced in heavy ion collisions at RHIC ...