Results 41 to 50 of about 910,115 (197)

Dense Coconut Oil‐in‐Water (CO‐Water) Emulsification via a Vortex‐Based Cavitation Device

open access: yesChemical Engineering &Technology, EarlyView.
This study investigates the emulsification of coconut oil‐in‐water (CO‐water) emulsions using a vortex‐based hydrodynamic cavitation (HC) device. The present study explores the influence of dispersed phase on produced O/W emulsions without changing the surfactant type and concentration.
Mukesh Upadhyay, Vivek V. Ranade
wiley   +1 more source

(In)finiteness of Spherically Symmetric Static Perfect Fluids [PDF]

open access: yesClass.Quant.Grav. 19 (2002) 2835-2852, 2002
This work is concerned with the finiteness problem for static, spherically symmetric perfect fluids in both Newtonian Gravity and General Relativity. We derive criteria on the barotropic equation of state guaranteeing that the corresponding perfect fluid solutions possess finite/infinite extent.
arxiv   +1 more source

Evaluating the feasibility of using a rapeseed oil‐derived anionic polymeric surfactant for enhanced oil recovery from carbonate/sandstone composite reservoirs

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
The experimental procedure for evaluating the rapeseed oil‐based polymeric surfactant in enhanced oil recovery. Abstract This study aims to investigate enhanced oil recovery from carbonate/sandstone composite (CSC) reservoirs using a negative‐charged rapeseed oil‐based polymeric surfactant.
Iman Nowrouzi   +2 more
wiley   +1 more source

Pseudo-Newtonian equations for evolution of particles and fluids in stationary space-times [PDF]

open access: yesThe Astrophysical Journal 841.105 (2017): 14pp, 2016
Pseudo-Newtonian potentials are a tool often used in theoretical astrophysics to capture some key features of a black-hole space-time in a Newtonian framework. As a result, one can use Newtonian numerical codes, and Newtonian formalism in general, in an effective description of important astrophysical processes such as accretion onto black holes.
arxiv   +1 more source

First‐order Sobolev spaces, self‐similar energies and energy measures on the Sierpiński carpet

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
Abstract For any p∈(1,∞)$p \in (1,\infty)$, we construct p$p$‐energies and the corresponding p$p$‐energy measures on the Sierpiński carpet. A salient feature of our Sobolev space is the self‐similarity of energy. An important motivation for the construction of self‐similar energy and energy measures is to determine whether or not the Ahlfors regular ...
Mathav Murugan, Ryosuke Shimizu
wiley   +1 more source

Locomotion in complex fluids: Integral theorems [PDF]

open access: yesPhys. Fluids (2014) 26, 081902, 2014
The biological fluids encountered by self-propelled cells display complex microstructures and rheology. We consider here the general problem of low-Reynolds number locomotion in a complex fluid. {Building on classical work on the transport of particles in viscoelastic fluids,} we demonstrate how to mathematically derive three integral theorems relating
arxiv   +1 more source

Field investigation of grout propagation within a caving mass under flowing water conditions in a metal mine

open access: yesDeep Underground Science and Engineering, EarlyView.
This study investigated the characteristics of two‐liquid slurry propagation filling of underground concealed spaces under flowing water conditions in metal mines using on‐site engineering tests. We proposed four different grout stratigraphic classifications, investigated four main factors affecting grout propagation, and summarized five different ...
Baofu Wu   +5 more
wiley   +1 more source

Application of De La Vallée Poussin Type Inequalities to Half‐Linear Euler Type Equations

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT The paper is devoted to the application of de la Vallée Poussin type inequalities to half‐linear differential Euler type equations. Four studied equations seen as perturbations of the nonoscillatory Euler equation with the oscillation constant are considered, and a new theorem for the cases where the perturbation is in both terms is presented.
Zuzana Pátíková
wiley   +1 more source

Stability Analysis of Non-Newtonian Rimming Flow [PDF]

open access: yesarXiv, 2015
The rimming flow of a viscoelastic thin film inside a rotating horizontal cylinder is studied theoretically. Attention is given to the onset of non-Newtonian free-surface instability in creeping flow. This non-inertial instability has been observed in experiments, but current theoretical models of Newtonian fluids can neither describe its origin nor ...
arxiv  

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