Results 51 to 60 of about 1,120,277 (382)

A time-domain finite element model reduction method for viscoelastic linear and nonlinear systems

open access: yesLatin American Journal of Solids and Structures
Many authors have shown that the effective design of viscoelastic systems can be conveniently carried out by using modern mathematical models to represent the frequency- and temperature-dependent behavior of viscoelastic materials.
Antônio Marcos Gonçalves de Lima   +3 more
doaj   +1 more source

Spirocyclic Nitroxides as Versatile Tools in Modern Natural Sciences: From Synthesis to Applications. Part I. Old and New Synthetic Approaches to Spirocyclic Nitroxyl Radicals

open access: yesMolecules, 2021
Spirocyclic nitroxyl radicals (SNRs) are stable paramagnetics bearing spiro-junction at α-, β-, or γ-carbon atom of the nitroxide fragment, which is part of the heterocyclic system.
Elena V. Zaytseva, Dmitrii G. Mazhukin
doaj   +1 more source

Condensate Phase Microscopy [PDF]

open access: yesPhysical Review Letters, 2014
We show that the phase of a Bose-Einstein condensate wave-function of ultra-cold atoms in an optical lattice potential in two-dimensions can be detected. The time-of-flight images, obtained in a free expansion of initially trapped atoms, are related to the initial distribution of atomic momenta but the information on the phase is lost.
Kosior, Arkadiusz, Sacha, Krzysztof
openaire   +4 more sources

Numerical Simulation of Volatile Organic Compounds during Condensation in a Vertical Tube

open access: yesProceedings, 2020
The purpose of this study is to analyze the combined heat and mass transfer through condensation of volatile organic compounds (VOCs), particularly alcohol (n-butanol-propanol) in the presence of non-condensable gas inside a vertical tube.
Youness El Hammami   +4 more
doaj   +1 more source

Effective Method to Collect Indoor Floating Aerosols Using Cooling Equipment

open access: yesAtmosphere, 2023
If we collect aerosols containing SARS-CoV-2 with condensed water and obtain the solution, a sensing device can detect the viruses, and we can easily take prompt countermeasures.
Kosuke Minakuchi   +4 more
doaj   +1 more source

Open Problems in $\alpha$ Particle Condensation

open access: yes, 2010
$\alpha$ particle condensation is a novel state in nuclear systems. We briefly review the present status on the study of $\alpha$ particle condensation and address the open problems in this research field: $\alpha$ particle condensation in heavier ...
A Tohsaki   +19 more
core   +3 more sources

Electrical neutrality and $\beta$-equilibrium conditions in dense quark matter: generation of charged pion condensation by chiral imbalance

open access: yes, 2020
The phase diagram of dense quark matter with chiral imbalance is considered with the conditions of electric neutrality and $\beta$-equilibrium. It has been shown recently that chiral imbalance can generate charged pion condensation in dense quark matter,
Khunjua, T. G.   +2 more
core   +1 more source

Sequential Condensation and Hydrodeoxygenation Reaction of Furfural-Acetone Adduct over Mix Catalysts Ni/SiO2 and Cu/SiO2 in Water

open access: yesIndonesian Journal of Chemistry, 2018
Sequential condensation and hydrodeoxygenation reaction were perform using autoclave batch reactor in the presence of water as a solvent. The condensation of furfural and acetone was performed using MgO catalyst followed by hydrodeoxygenation using mix ...
Siti Mariyah Ulfa   +2 more
doaj   +1 more source

Current Research Trends in the Process of Condensation of Cooling Zeotropic Mixtures in Compact Condensers

open access: yesEnergies, 2022
This paper is an introduction to the cycle proposed by the authors related to research directions concerning the problems of condensation of zeotropic refrigerant mixtures.
Marcin Kruzel   +4 more
doaj   +1 more source

A Heat Exchanger with Water Vapor Condensation on the External Surface of a Vertical Pipe

open access: yesEnergies, 2022
The paper is concerned with water vapor condensation on vertical pipes. The vertical position of pipes in a condenser is not discussed very often. Its application has a number of particularities in terms of the numerical determination of heat transfer ...
Petr Kracík   +3 more
doaj   +1 more source

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