Buscar
Mostrando ítems 1-10 de 5258
On ionic contributions to Pedersen conductance
(Blackwell Publishing Ltd, 2018-12)
Ionospheric conductivity is a key parameter to understand the upper atmosphere electrodynamics, magnetosphere-ionosphere-thermosphere coupling and several geophysical processes. In the case of Pedersen conductivity, ions ...
High-Pressure Performance of Mixed-Conducting Oxygen Electrodes: Effect of Interstitial versus Vacancy Conductivity
(Electrochemical Society, 2016-10-06)
Electrochemical response was measured as a function of oxygen pressure pO2 up to 10 bar for four different mixed-conducting oxygen electrode materials, the oxygen-vacancy-conducting perovskites (Sm0.5Sr0.5)CoO3 (SSC) and ...
Ionospheric Conductance Spatial Distribution During Geomagnetic Field Reversals
(American Geophysical Union, 2018-03)
The conductivity of the ionosphere is extremely important in geophysical processes and plays acritical role in magnetosphere-ionosphere-thermosphere coupling. Understanding its nature is essential tounderstand the physics ...
Optical conductivity in an effective model for graphene: finite temperature corrections (015401)
(IOP Publishing, 2019-12)
In this article, we investigate the temperature and chemical potential dependence of the optical conductivity of graphene, within a field theoretical representation in the continuum approximation, arising from an underlying ...
Effect of charge-spin separation on the conductance through interacting low-dimensional rings
(Elsevier Science, 2009-10)
We calculate the conductance through Aharonov-Bohm chain and ladder rings pierced by a magnetic flux which couples with the charge degrees of freedom. The system is weakly coupled to two leads and contains strongly interacting ...
Effect of the trabecular bone microstructure on its thermal conductivity: measurements and a computer modelling-based study
(Pergamon-Elsevier Science Ltd, 2018-10)
Objective: Computer models have been proposed to evaluate heat transfer in bone tissues resulting from thermal ablation, mechanical drilling, or associated with bone cement in joint prosthesis. The lack of knowledge of the ...
Effects of intergranular barrier fluctuations on the electrical conductivity of polycrystalline semiconductors
(Elsevier Science, 2018-11-15)
We studied the influence of intergranular barrier fluctuations on the electrical response of 3D semiconductor polycrystals. We first computed with a numerical simulation model the dispersion in the intergranular barrier ...
Quantum interference in coherent molecular conductance
(American Physical Society, 2009-12)
Coherent electronic transport through individual molecules is crucially sensitive to quantum interference. We investigate the zero-bias and zero-temperature conductance through π-conjugated annulene molecules weakly coupled ...
Phenomics allows identification of genomic regions affecting maize stomatal conductance with conditional effects of water deficit and evaporative demand
(Wiley Blackwell Publishing, Inc, 2018-02)
Stomatal conductance is central for the trades-off between hydraulics and photosynthesis. We aimed at deciphering its genetic control and that of its responses to evaporative demand and water deficit, a nearly impossible ...
Polypyrrole-CoFe 2 O 4 nanocomposites: Polymer influence on magnetic behavior and particle effects on polymer conduction
(John Wiley & Sons Inc, 2017-09)
Composites of cobalt ferrite nanoparticles in a polypyrrole (PPy) matrix have been synthesized in acid media and characterized by X‐ray diffraction studies, scanning and transmission electron microscopy observation, ...