Results 41 to 50 of about 510,054 (306)

Foam-in-Vein: Characterisation of Blood Displacement Efficacy of Liquid Sclerosing Foams

Biomolecules, 2022
Sclerotherapy is among the least invasive and most commonly utilised treatment options for varicose veins. Nonetheless, it does not cure varicosities permanently and recurrence rates are of up to 64%.
Alireza Meghdadi, Stephen A. Jones, Venisha A. Patel, Andrew L. Lewis, Timothy M. Millar, Dario Carugo   +5 more
doaj   +1 more source

Foamed emulsion drainage: flow and trapping of drops [PDF]

, 2017
Foamed emulsions are ubiquitous in our daily life but the ageing of such systems is still poorly understood. In this study we investigate foam drainage and measure the evolution of the gas, liquid and oil volume fractions inside the foam.
Langevin, Dominique, Salonen, Anniina, Schneider, Maxime, Zou, Ziqiang   +3 more
core   +2 more sources

Insights on the polymerization kinetics of non-isocyanate polyurethanes (NIPU) using in situ NMR spectroscopy

Polymer Testing
An in situ characterization method using liquid Nuclear Magnetic Resonance (NMR) spectroscopy has been developed to aid the preparation of highly reactive non-isocyanate polyurethanes (NIPUs) from cyclic carbonate aminolysis.
Anthony Monmagnon, Pierre-Alain Bayle, Florence Flaig, Céline Carpe, Jaouad El Harfi, Renaud Demadrille, Sébastien Rolere   +6 more
doaj   +1 more source

Foam EOR as an Optimization Technique for Gas EOR: A Comprehensive Review of Laboratory and Field Implementations

Energies, 2023
Foam-enhanced oil recovery (EOR) is poised to become one of the most promising tertiary recovery techniques to keep up with the continuously increasing global energy demands.
Ayomikun Bello, Anastasia Ivanova, Alexey Cheremisin   +2 more
doaj   +1 more source

Hydrostatic compression on polypropylene foam [PDF]

, 2014
Models currently used to simulate the impact behaviour of polymeric foam at high strain rates use data from mechanical tests. Uniaxial compression is the most common mechanical test used, but the results from this test alone are insufficient to ...
VIOT, Philippe
core   +2 more sources

Foam pads properties and their effects on posturography in participants of different weight [PDF]

, 2015
Background: Foam pads are increasingly used on force platforms during balance assessments in order to produce increased instability thereby permitting the measurement of enhanced posturographic parameters.
Fagan, Michael, Gosselin, Guy
core   +2 more sources

Ultra-Porous Nanocellulose Foams: A Facile and Scalable Fabrication Approach

Nanomaterials, 2019
Cellulose nanofibril foams are cellulose-based porous materials with outstanding mechanical properties, resulting from the high strength-to-weight ratio of nanofibrils.
Carlo Antonini, Tingting Wu, Tanja Zimmermann, Abderrahmane Kherbeche, Marie-Jean Thoraval, Gustav Nyström, Thomas Geiger   +6 more
doaj   +1 more source

Experimental evidence of flow destabilization in a 2D bidisperse foam [PDF]

, 2006
Liquid foam flows in a Hele-Shaw cell were investigated. The plug flow obtained for a monodisperse foam is strongly perturbed in the presence of bubbles whose size is larger than the average bubble size by an order of magnitude at least.
C. Poloni, D. Weaire, G. Hirasaki, I. Cantat, R. Delannay   +4 more
core   +3 more sources

The Feynman propagator for quantum gravity: spin foams, proper time, orientation, causality and timeless-ordering

, 2004
We discuss the notion of causality in Quantum Gravity in the context of sum-over-histories approaches, in the absence therefore of any background time parameter.
Oriti, Daniele
core   +4 more sources

so(4) Plebanski Action and Relativistic Spin Foam Model [PDF]

, 1998
In this note we study the correspondence between the ``relativistic spin foam'' model introduced by Barrett, Crane and Baez and the so(4) Plebanski action.
Baez J, Capovilla R, Capovilla R, Crane L, Freidel L, Krasnov K, L Freidel, Obukhov Yu N, Ooguri H, Pillin M, Plebanski J F, R De Pietri, Reisenberger M, Reisenberger M, Reisenberger M, Urbantke H, Yetter D   +16 more
core   +2 more sources