Results 51 to 60 of about 79,888 (294)

Sublimation-Induced Sulfur Vacancies in MoS2 Catalyst for One-Pot Synthesis of Secondary Amines

open access: yes, 2019
MoS2 catalysts with abundant S and Mo defects have been developed for the one-pot reductive amination of nitro compounds with aldehydes to synthesize secondary amines. The combination of multiple structural characterizations demonstrates that the density
Ding Ma   +15 more
core   +1 more source

Tetracyclic π‐Extended Multi‐Resonant TADF Emitters for Green PSF‐OLEDs With 37.7% EQE and BT.2020‐Compatible Top‐Emitting Devices

open access: yesAdvanced Functional Materials, EarlyView.
Ultra‐narrow green multi‐resonance thermally activated delayed fluorescence emitters have been developed by linear π‐extension strategy using tetracyclic naphtho[2,3‐b]benzofuran unit. The resulting phosphorescence‐sensitized OLEDs achieve a maximum external quantum efficiency of 37.7% in the bottom‐emitting architecture, while the complementary top ...
Eo Jin Jeon   +7 more
wiley   +1 more source

Thermal model of water and CO activity of Comet C/1995 O1 (Hale-Bopp) [PDF]

open access: yes, 2011
An investigation of the activity of Comet C/1995 O1 (Hale-Bopp) with a thermophysical nucleus model that does not rely on the existence of amorphous ice is presented.
H.U. Keller   +8 more
core   +1 more source

High‐Efficiency Deep Blue Single‐Gaussian Europium(II) Emitters and Their Emitter‐Host Interactions

open access: yesAdvanced Functional Materials, EarlyView.
Crown‐ether ligands and carborate anions enable vacuum‐processable Eu(II) emitters with efficient single‐Gaussian deep‐blue luminescence. Combined photophysical and computational analyses reveal that excited‐electron confinement and steric shielding of the europium center jointly govern compatibility with OLED host materials, establishing molecular ...
Mahmoud Soleimani   +8 more
wiley   +1 more source

THE SEMICONDUCTOR THERMOELECTRIC DEVICE FOR TEMPERATURE CONTROL OF COMPUTER PROCESSOR WITH USE OF MATERIALS IN THE CONDITION OF PHASE TRANSITION

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2016
The article deals with the cooling system computer processor on the based sublimation phase transitions, allowing to provide temperature control mode in a transient thermal load, which will prevent the failure of the VLSI processor.
H. M. Gadjiyev, D. A. Chelushkin
doaj   +1 more source

Typical mechanisms of degradation of thermoelectric materials and ways to reduce their impact on the reliability of thermoelectric modules

open access: yesФізика і хімія твердого тіла, 2022
The review considers a number of typical mechanisms of degradation of thermoelectric materials in the process of their functioning as a part of thermoelectric generator modules.
Petro Gorskyi
doaj   +1 more source

Sublimation of terrestrial permafrost and the implications for ice-loss processes on Mars

open access: yesNature Communications, 2019
Sublimation of ice is rate-controlled by vapor transport away from its outer surface and may have generated landforms on Mars. In ice-cemented ground (permafrost), the lag of soil particles remaining after ice loss decreases subsequent sublimation ...
T. Douglas, M. Mellon
semanticscholar   +1 more source

Influence of sublimation on stable isotope records recovered from high‐altitude glaciers in the tropical Andes [PDF]

open access: yes, 2001
Sublimation dominates the ablation process on cold, high-altitude glaciers in the tropical Andes. Transport of water vapor through the firn and exchange with ambient moisture alter the stable isotope composition of the surface layers.
Fröhlich, K.   +13 more
core   +2 more sources

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

open access: yesAdvanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

Influence of atmospheric sublimation and evaporation on the heat pump fluid bed drying of bovine intestines [PDF]

open access: yes, 2012
Experiments on atmospheric two-stage fluidized bed drying of bovine intestines with heat pump were carried out. The investigation covers innovative fluidized bed heat pump drying of bovine intestines. The two-stage drying consists of atmospheric moisture
Alves-Filho, Odilio   +5 more
core   +1 more source

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