Results 21 to 30 of about 109,133 (297)

Electrodeposition from supercritical fluids

open access: yes, 2014
Recent studies have shown that it is possible to electrodeposit a range of materials, such as Cu, Ag and Ge, from various supercritical fluids, including hydrofluorocarbons and mixtures of CO2 with suitable co-solvents. In this perspective we discuss the
George, M.W.   +8 more
core   +1 more source

Modelling and experimental study of separators for co-solvent recovery in a supercritical extraction process [PDF]

open access: yes, 2006
Co-solvent recovery in supercritical extraction is addressed here through a theoretical description of the behaviour of a CO2 + co-solvent mixture into a cascade of cyclonic separators, such as those existing in conventional fractionation processes based
Camy, Séverine   +1 more
core   +1 more source

Research on Closed Cycle Pipe Blowing Technology of 5 MW Supercritical Carbon Dioxide Unit Boiler

open access: yes发电技术, 2023
In order to explore the steam pipe blowing process suitable for new supercritical carbon dioxide boiler, taking a 5 MW supercritical carbon dioxide circulating power generation test unit as the research object, the characteristics of main and auxiliary ...
WANG Lin
doaj   +1 more source

Supercritical Elliptic Equations [PDF]

open access: yesAdvanced Nonlinear Studies, 2012
Abstract For an elliptic model equation with supercritical power non-linearity we give a complete description of radial solutions and discuss self-similar blow-up solutions.
Rupflin, M, Struwe, M
openaire   +3 more sources

MODELLING OF SUPERCRITICAL CARBON DIOXIDE EXTRACTION OF ANDROGRAPHOLIDE FROM ANDROGRAPHIS PANICULATA LEAVES BY EMPLOYING INTEGRAL DESORPTION CONCEPT [PDF]

open access: yes, 2006
Mathematical formulation is necessary for the optimisation and scale-up of a separation unit such as the extraction of biomolecules from their natural resources.
Kumoro, A.C., Hasan, M.
core   +2 more sources

Understanding Sub and Supercritical Cryogenic Fluid Dynamics in Conditions Relevant to Novel Ultra Low Emission Engines

open access: yesEnergies, 2020
In this paper we provide insight into the thermophysical properties and the dynamics of cryogenic jets. The motivation of the work is to optimise the use of cryogenic fluids in novel ultra low emission engines.
Jaya Madana Gopal   +5 more
doaj   +1 more source

VAN DER WAALS MIXING RULES FOR THE REDLICH-KWONG EQUATION OF STATE. APPLICATION FOR SUPERCRITICAL SOLUBILITY MODELING

open access: yesReaktor, 2006
A solid-supercritical fluid system is highly asymmetric in terms of the size and energy differences of the components. The key point in extending a cubic equation of state to such system is on the choice of proper mixing rules.
Ratnawati Ratnawati
doaj   +1 more source

Nature of the Supercritical Mesophase

open access: yesNatural Science, 2014
It has been reported that at temperatures above the critical there is no “continuity of liquid and gas”, as originally hypothesized by van der Waals [1]. Rather, both gas and liquid phases, with characteristic properties as such, extend to supercritical temperatures [2]-[4]. Each phase is bounded by the locus of a percolation transition, i.e.
Magnier, Hamza J.   +2 more
openaire   +3 more sources

Supercritical regime for the kissing polynomials [PDF]

open access: yesJournal of Approximation Theory, 2020
We study a family of polynomials which are orthogonal with respect to the varying, highly oscillatory complex weight function $e^{niλz}$ on $[-1,1]$, where $λ$ is a positive parameter. This family of polynomials has appeared in the literature recently in connection with complex quadrature rules, and their asymptotics have been previously studied when ...
Andrew F. Celsus, Guilherme L. F. Silva
openaire   +3 more sources

Sulfur‐Free Ultrahigh‐Refractive‐Index Polymers Enabled by Densely Packed Oxygen‐Bridged Dibenzofuran‐Cardo Architectures

open access: yesAdvanced Functional Materials, EarlyView.
A new class of sulfur‐free, oxygen‐bridged dibenzofuran‐based polymers is developed for ultrahigh‐refractive‐index applications. The rigid π‐extended architecture and enhanced molecular polarizability enable exceptional optical performance, combining refractive indices up to 1.848 with high Abbe numbers and full visible transparency. This work offers a
Hend A. Hegazy   +5 more
wiley   +1 more source

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