Results 31 to 40 of about 92,104 (231)

Shape complexity and fractality of fracture surfaces of swelled isotactic polypropylene with supercritical carbon dioxide [PDF]

open access: yesPhysical Review E 73, 011801 (2006), 2005
We have investigated the fractal characteristics and shape complexity of the fracture surfaces of swelled isotactic polypropylene Y1600 in supercritical carbon dioxide fluid through the consideration of the statistics of the islands in binary SEM images.
arxiv   +1 more source

The steady behavior of the supercritical carbon dioxide natural circulation loop [PDF]

open access: yesarXiv, 2023
The steady state behavior of thermodynamically supercritical natural circulation loops (NCLs) is investigated in this work. Experimental steady state results with supercritical carbon dioxide are presented for reduced pressures in the range of 1.1-1.5, and temperatures in the range of 20-65 {\deg}C.
arxiv  

Design and manufacturing of supercritical drying autoclave for aerogel production

open access: yesIraqi Journal of Physics, 2019
This article will address autoclave design considerations and manufacturing working with high pressure low temperature supercritical drying technique to produce silica aerogel.
Ashraf M. Alattar
doaj   +1 more source

Applications of SSAFT EOS for determination of the solubilities of solid compounds in supercritical CO2. [PDF]

open access: yes, 2016
Using statistical thermodynamics such as Simplified SAFT equation of state (SSAFTEoS) for estimating phase equilibrium and fluid properties of different materials have been used widely.
Ali, F. Mohebbi   +5 more
core   +2 more sources

Applying ANN, ANFIS, and LSSVM Models for Estimation of Acid Solvent Solubility in Supercritical CO$_2$ [PDF]

open access: yes, 2019
In the present work, a novel and the robust computational investigation is carried out to estimate solubility of different acids in supercritical carbon dioxide. Four different algorithms such as radial basis function artificial neural network, Multi-layer Perceptron (MLP) artificial neural network (ANN), Least squares support vector machine (LSSVM ...
arxiv   +1 more source

Numerical simulation of convection heat transfer of supercritical carbon dioxide in horizontal straight tube

open access: yesJournal of Hebei University of Science and Technology, 2019
In order to enhance the heat transfer performance of CO2 heat pump, the heat transfer performance of supercritical carbon dioxide in horizontal straight tube is conducted based on Fluent numerical simulation method. Cooling heat transfer of supercritical
Haiting CUI, Siwen LIU, Shaozheng WANG
doaj   +1 more source

Green Extraction of Antimicrobial Bioactive Compound from Piper Betle Leaves: Probe type Ultrasound-assisted Extraction vs Supercritical Carbon Dioxide Extraction

open access: yesChemical Engineering Transactions, 2017
The utilisation of green method for medicinal plant extraction has become a trend and an acceptable method in many areas of research and development. In this study, bioactive compounds were extracted from dried Piper betle leaves using the probe type ...
L.W. Foo, E. Salleh, S.N. Hana
doaj   +1 more source

Operation characteristic of supercritical carbon dioxide-cooled reactor system under coordination control scheme

open access: yesInternational Journal of Advanced Robotic Systems, 2020
Nuclear power plant is completely independent of air and has high power density, which improves unmanned marine vehicle maneuvering performance, maximum speed, and concealment.
Xue Du, Junsheng Hu, Genglei Xia
doaj   +1 more source

Mathematical modeling and simulation of gel drying with supercritical carbon dioxide [PDF]

open access: yesJournal of the Serbian Chemical Society, 2005
Mathematical models of alumina/silica gel supercritical drying with carbon dioxide were studied using supercritical drying experimental data. An alumina/silica gel with zinc chloride was synthesized and dried with superciritical carbon dioxide, and its ...
ALEKSANDAR ORLOVIC   +2 more
doaj   +3 more sources

Glycerol as a cheap, safe and sustainable solvent for the catalytic and regioselective β,β-diarylation of acrylates over palladium nanoparticles [PDF]

open access: yes, 2010
Herein we show that glycerol can be considered as a promising cheap and green solvent for the regioselective β,β-diarylation of alkenes. Whereas this reaction is generally catalyzed under an inert atmosphere by expensive phosphine or carbene-palladium ...
Barrault, Joel   +7 more
core   +1 more source

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