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Nonthermal processes in hot accretion flows onto supermassive black holes: an inhomogeneous model
(EDP Sciences, 2021-05)
Context. Many low-redshift active galactic nuclei harbor a supermassive black hole accreting matter at low or medium rates. At such rates, the accretion flow usually consists of a cold optically thick disk, plus a hot, low ...
Impact of a rocky outcrop on hydrodynamics and geomorphology in a mesotidal channel
(Academic Press Ltd - Elsevier Science Ltd, 2019-09-30)
The purpose of the present work is to study the effect of an isolated depression and a related rocky outcrop on the flow field in a mesotidal channel of the Bahía Blanca Estuary, Argentina. To this end, measurements of ...
Study of the reverse saturation current and series resistance of p-p-n perovskite solar cells using the single and double-diode models
(Academic Press Ltd - Elsevier Science Ltd, 2018-11)
The effects of the offset level and of the doping level in the perovskite layer upon both the reverse saturation current (J 0 ) and the series resistance (R s ) of p-p-n perovskite solar cells have been researched in this ...
Redescription of immatures of dasyhelea flavifrons Guérin-Méneville (Culicomorpha: Ceratopogonidae) and new contribution to the knowledge of its larval habitats
(Academia Brasileira de Ciencias, 2019-04-08)
The fourth instar larva and pupa of Dasyhelea flavifrons Guérin-Méneville are redescribed, illustrated, and photomicrographed using binocular, phase-contrast, and scanning electron microscopy. Comparisons with the American ...
Electronic Fine Structure in the Electron-Hole Plasma in SrB6
(American Physical Society, 2000-07)
Electron-hole mixing-induced fine structure in alkaline earth hexaborides leads to lower energy (temperature) scales, and thus a stronger tendency toward an excitonic instability than in their doped counterparts (viz. ...
Two-dimensional description of absorption in humans after dermal exposure to volatile organic compounds
(TAYLOR & FRANCIS INC, 2017-06-03)
A two-dimensional diffusion model was developed to predict the absorption of chemicals in humans following dermal contact. A firstorder evaporation rate equation was applied to the skin surface while a perfect-sink boundary ...
Thermal conductance of structured silicon nanocrystals
(IOP Publishing, 2020-10)
We calculate the thermal conductance of a structured silicon nanocrystal with a hole of different sizes. The numerical study is based on non-equilibrium molecular dynamics simulations using two potential models for the ...
A pervasive role for biomass burning in tropical high ozone/low water structures
(Nature Publishing Group, 2016-01)
Air parcels with mixing ratios of high O3 and low H2O (HOLW) are common features in the tropical western Pacific (TWP) mid-troposphere (300-700 hPa). Here, using data collected during aircraft sampling of the TWP in winter ...
Structures, Phase Fields, and Mixed Protonic-Electronic Conductivity of Ba-Deficient, Pr-Substituted BaZr 0.7 Ce 0.2 Y 0.1 O 3-δ
(American Chemical Society, 2018-12)
The BaZr 0.7 Ce 0.2 Y 0.1 O 3-δ -BaPrO 3-δ perovskite system, of interest for high-temperature electrochemical applications involving mixed protonic-electronic conductivity, forms a solid-solution with a wide interval of ...