Results 71 to 80 of about 155,235 (338)
Dust reverberation mapping in the era of big optical surveys and its cosmological application
, 2014 The time lag between optical and near-infrared (IR) flux variability can be taken as a means to determine the sublimation radius of the dusty "torus" around supermassive black holes in active galactic nuclei (AGN).
Hoenig, Sebastian F.
core +1 more source
Near-infrared emission from sublimating dust in collisionally active debris disks [PDF]
, 2014 Hot exozodiacal dust is thought to be responsible for excess near-infrared (NIR) emission emanating from the innermost parts of some debris disks. The origin of this dust, however, is still a matter of debate.
Dominik, C. +3 more
core +5 more sources
Singular sublimation of ice and snow crystals
Nature Communications, 2018 The evaporation (sublimation) of ice and snow has a major impact on global climate, since the amount of ice and snow determines Earth’s albedo. Yet, due to their complex geometry with several sharp regions which are singular for the evaporation, the ...
E. Jambon-Puillet +2 more
semanticscholar +1 more source
Thermal Stability and Anisotropic Sublimation of Two-Dimensional Colloidal Bi2Te3 and Bi2Se3 Nanocrystals [PDF]
Nano letters (Print), 2016 The structural and compositional stabilities of two-dimensional (2D) Bi2Te3 and Bi2Se3 nanocrystals, produced by both colloidal synthesis and by liquid phase exfoliation, were studied by in situ transmission electron microscopy (TEM) during annealing at ...
J. Buha +4 more
semanticscholar +1 more source
Advanced Materials, EarlyView.In this work, low bandgap (≈1.55 eV) semitransparent perovskite solar cells (ST‐PSCs) having thin (thickness < ≈100 nm) perovskite layers and transparent conductive oxide‐based rear electrodes are fabricated using vacuum‐deposition methods. Two different ST‐PSCs demonstrated a high light utilization efficiency value of 4.2 (PCE: 9.26% and AVT: 45.3 ...
Abhyuday Paliwal +9 more
wiley +1 more source
Fluidized bed as a solid precursor delivery system in a chemical vapor deposition reactor [PDF]
, 2005 Chemical vapor deposition (CVD) using precursors that are solids at operating temperatures and pressures, presents challenges due to their relatively low vapor pressures.
Caussat, Brigitte +6 more
core
Asymmetric amplification in amino acid sublimation involving racemic compound to conglomerate conversion [PDF]
, 2011 A straightforward unprecedented sublimation protocol that reveals both conversion of a racemic compound into a racemic conglomerate and subsequent enantioenrichment has been developed for the proteinogenic amino acid valine.
Cintas, Pedro +4 more
core +4 more sources
Vapor sublimation and deposition to build porous particles and composites
Nature Communications, 2018 The vapor deposition of polymers on regular stationary substrates is widely known to form uniform thin films. Here we report porous polymer particles with sizes controllable down to the nanometer scale can be produced using a fabrication process based on
Hsing-Ying Tung +3 more
semanticscholar +1 more source
Advanced Materials, EarlyView.This review systematically summarizes recent advances in porosity engineering of MXenes, with a focused discussion on their structure‐governed energy storage properties. A critical analysis of structure–property relationships is presented across alkali‐ion batteries, multivalent‐ion batteries, and supercapacitors.
Shude Liu +8 more
wiley +1 more source
Il meriggio nella natura Riflessioni estetiche su un’utopia poetica
Enthymema, 2013 There is a particular space-time combination in which poetry is meant to find its perfect place, its perfect happening: it’s the meridian moment, the midday spent in a locus amoenus singing and playing along with fellow-poets. It seems to be what Bachtin
Francesco Giusti
doaj +1 more source