Results 31 to 40 of about 1,062 (197)

On More General Fractional Differential Equations Involving Mixed Generalized Derivatives with Nonlocal Multipoint and Generalized Fractional Integral Boundary Conditions

Journal of Function Spaces, Volume 2020, Issue 1, 2020., 2020
This paper deals with the existence of solutions for a new boundary value problem involving mixed generalized fractional derivatives of Riemann‐Liouville and Caputo supplemented with nonlocal multipoint boundary conditions. The existence results for inclusion case are also discussed.
Wafa Shammakh, Hadeel Z. Alzumi, Bushra A. AlQahtani, Seppo Hassi   +3 more
wiley   +1 more source

Advance in investigation on mechanism of electric field treatment for improving the cold flowability of crude oil and its prospect

You-qi chuyun, 2022
High-voltage electric field treatment is an emerging approach to improve the cold flowability of crude oil, of which the physical principle is the negative electrorheological effect of crude oil other than electric heating and electric field dehydration.
LI Hongying, HUANG Qian, CHEN Chaohui, XIE Yiyu, SU Yang, ZHANG Chaoyue, ZHANG Jingjun   +6 more
doaj   +1 more source

Generality of shear thickening in suspensions [PDF]

, 2010
Suspensions are of wide interest and form the basis for many smart fluids. For most suspensions, the viscosity decreases with increasing shear rate, i.e. they shear thin. Few are reported to do the opposite, i.e.
A Fall, Benjamin W. Maynor, BJ Maranzano, Carlos S. Orellana, CO Osuji, D Lootens, D Lootens, DA Head, Douglas E. Betts, E Brown, Eric Brown, HA Barnes, Hanjun Zhang, Heinrich M. Jaeger, J Bergenholtz, J Pryce-Jones, JF Brady, Joseph M. DeSimone, JP Rolland, JR Melrose, M Sellito, Nicole A. Forman, RG Egres, RL Hoffmann, SS Shenoy, V Gopalakrishnan, V Trappe, W Galley, W Wen, X Zhang, YS Lee   +30 more
core   +1 more source

Synthesis of TiO2/Pd and TiO2/PdO Hollow Spheres and Their Visible Light Photocatalytic Activity

International Journal of Photoenergy, Volume 2020, Issue 1, 2020., 2020
A series of TiO2, TiO2/Pd, and TiO2/PdO hollow sphere photocatalysts was successfully prepared via a combination of hydrothermal, sol‐immobilization, and calcination methods. The structure and optical properties of the as‐prepared samples were characterized by X‐ray diffraction, field emission scanning electron microscopy, transmission electron ...
Jing Yan, Xiaojuan Li, Bo Jin, Min Zeng, Rufang Peng, Zaiyong Jiang   +5 more
wiley   +1 more source

Electrorheological Properties of Suspensions of Polypyrrole- Coated Titanate Nanorods

Applied Rheology, 2011
The behaviour of silicone-oil suspensions of titanate nanorods coated with polypyrrole base in electric field has been investigated. Unlike suspension of globular particles of neat polypyrrole, rod-like particles show a stronger electrorheological (ER ...
Mrlík Miroslav, Pavlínek Vladimír, Sáha Petr, Quadrat Otakar   +3 more
doaj   +1 more source

Analysis of the Yielding Behavior of Electrorheological Suspensions by Controlled Shear Stress Experiments

Applied Rheology, 2006
The yielding behavior of two model electrorheological suspensions of uncoated silica particles and silica coated with polyaniline base in silicone oil using controlled shear rate and controlled shear stress experiments has been analyzed.
Pavlínek Vladimír, Sáha Petr, Pérez-González José, de Vargas Lourdes, Stejskal Jaroslav, Quadrat Otakar   +5 more
doaj   +1 more source

An electro-rheological study of the nematic liquid crystal 4-n-heptyl-4'-cyanobiphenyl [PDF]

, 2010
An experimental and theoretical study of the electro-rheological effects observed in the nematic phase of 4-n-heptyl-4'-cyanobiphenyl has been conducted. This liquid crystal appears to be a model system, in which the observed rheological behaviour can be
Cidade, M. T., Leal, Catarina Marques Mendes Almeida da Rosa, Patricio, Pedro   +2 more
core   +1 more source

Electrorheological fluids [PDF]

, 1996
An Electrorheological fluid is normally a low-viscosity colloidal suspension, but when an electric field is applied, the fluid undergoes a reversible transition to a solid, being able to support considerable stress without yield. Commercial possibilities for such fluids are enormous, including clutches, brakes, valves,shock absorbers, and stepper ...
Adolf, D., Anderson, R., Garino, T., Halsey, T. C., Hance, B., Martin, J. E., Odinek, J.   +6 more
openaire   +2 more sources

Structure of electrorheological fluids [PDF]

The Journal of Chemical Physics, 2000
Specially synthesized silica colloidal spheres with fluorescent cores were used as model electrorheological fluids to experimentally explore structure formation and evolution under conditions of no shear. Using confocal scanning laser microscopy we measured the location of each colloid in three dimensions.
Dassanayake, U., Fraden, S., van Blaaderen, A.   +2 more
openaire   +3 more sources

Quantifying local characteristics of velocity, aggregation and hematocrit of human erythrocytes in a microchannel flow [PDF]

, 2015
The effect of erythrocyte aggregation on blood viscosity and microcirculatory flow is a poorly understood area of haemodynamics, especially with relevance to serious pathological conditions.
Balabani, S, Dusting, J, Kaliviotis, E, Sherwood, JM   +3 more
core   +3 more sources