Results 41 to 50 of about 112,522 (234)

Water Vapor in Carbon-rich AGB Stars from the Vaporization of Icy Orbiting Bodies [PDF]

open access: yes, 2001
We argue that the presence of water vapor in the circumstellar outflow of a carbon-rich AGB star is potentially a distinctive signature of extra-solar cometary systems. Detailed models show that at suitable distances from the star, water ice can survive well into the carbon-rich AGB phase; water vapor abundances as large as 10^-6 could result from the ...
arxiv   +1 more source

Phase-Field Crystal Model with a Vapor Phase [PDF]

open access: yes, 2013
Phase-Field Crystal (PFC) models are able to resolve atomic length scale features of materials during temporal evolution over diffusive time scales. Traditional PFC models contain solid and liquid phases, however many important materials processing phenomena involve a vapor phase as well.
arxiv   +1 more source

Parameters of Modular Microwave Vacuum Evaporators

open access: yesТехника и технология пищевых производств
Microwave energy facilitates evaporation, thus producing more solids of higher quality than other concentration methods and traditional evaporators. Despite its effectiveness, the food industry has no methods for industrial microwave evaporation.
Alexander V. Gavrilov, Yuriy B. Gerber
doaj   +1 more source

Controllable Water Vapor Assisted Chemical Vapor Transport Synthesis of WS2-MoS2 Heterostructure [PDF]

open access: yes, 2019
The vapor phase synthesis of two-dimensional transition-metal dichalcogenides (MX2) and their heterostructures is often poorly reproducible and sensitive to uncontrolled environmental humidity. It was recently realized that water vapor can play important roles in the growth of MX2 by reacting with MX2 at high temperature to form volatile metal ...
arxiv   +1 more source

Vapor flux on bumpy surfaces: condensation and transpiration on leaves [PDF]

open access: yesarXiv, 2021
Drop condensation and evaportation as a result of the gradient in vapor concentration are important in both engineering and natural systems. One of the interesting natural examples is transpiration on plant leaves. Most of water in the inner space of the leaves escapes through stomata, whose rate depends on the surface topography and a difference in ...
arxiv  

Preservation of sexual function with blue laser vaporization in the treatment of benign prostatic hyperplasia: a prospective study

open access: yesThe Aging Male
Objective Sexual function preservation is a paramount concern for patients undergoing benign prostatic hyperplasia (BPH) surgery, increasingly recognized by physicians. Blue laser vaporization, a novel approach for BPH treatment, has yet to be thoroughly
Zun-Jie Hu   +7 more
doaj   +1 more source

Electric-field-induced change of alkali-metal vapor density in paraffin-coated cells [PDF]

open access: yesPhys. Rev. A 79, 032901 (2009)., 2008
Alkali vapor cells with antirelaxation coating (especially paraffin-coated cells) have been a central tool in optical pumping and atomic spectroscopy experiments for 50 years. We have discovered a dramatic change of the alkali vapor density in a paraffin-coated cell upon application of an electric field to the cell.
arxiv   +1 more source

Evaporation/Decomposition Behavior of 1-Butyl-3-Methylimidazolium Chloride (BMImCL) Investigated through Effusion and Thermal Analysis Techniques

open access: yesThermo, 2023
The evaporation/decomposition behavior of the ionic liquid 1-butyl-3-methylimidazolium chloride (BMImCl) was studied with various techniques, such as thermogravimetry (TG), Knudsen effusion mass loss (KEML), and Knudsen effusion mass spectrometry (KEMS),
Bruno Brunetti   +6 more
doaj   +1 more source

Degree of vaporization using an airblast type injector for a premixed-prevaporized combustor [PDF]

open access: yes, 1978
Vaporization data that could be useful in designing premixed-prevaporized fuel preparation systems for gas turbine combustors are presented. The effect of the experimental parameters on vaporization was found to be E = T sub in tau 0.18 (V sub ref + 38) (
Tacina, R. R.
core   +1 more source

Particularities of R134a Refrigerant Temperature Variations in a Transient Convective Regime during Vaporization in Rectangular Microchannels

open access: yesMicromachines, 2022
An analysis of the R134a (tetrafluoroetane) coolant’s non-stationary behavior in rectangular microchannels was conducted with the help of a newly proposed miniature refrigerating machine of our own design and construction.
Ioan Mihai   +2 more
doaj   +1 more source

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