Results 91 to 100 of about 83,580 (201)

Freezing as a Storage Process for Aqueous Polymer Solutions

open access: yesApplied Rheology, 2005
There is often a need to perform rheological tests on dilute polymeric liquids at a time long after their initial preparation, for example if a more sensitive or novel method of measuring a material property (such as uniaxial/biaxial extensional ...
Escudier M. P.   +2 more
doaj   +1 more source

A generalization of the Becker model in linear viscoelasticity: Creep, relaxation and internal friction

open access: yes, 2018
We present a new rheological model depending on a real parameter $\nu \in [0,1]$ that reduces to the Maxwell body for $\nu=0$ and to the Becker body for $\nu=1$.
Mainardi, Francesco   +2 more
core   +1 more source

Investigation of the Sedimentation Property of Backfill Material on the Basis of Rheological Test: A Case Study of Iron Tailings

open access: yesJournal of Chemistry, 2018
Sedimentation of filling materials could cause pipe blocking accident in mines. However, few quantitative characterization studies have investigated the sedimentation characteristics of filling materials. In this study, the sedimentation property of iron
Yong Wang   +4 more
doaj   +1 more source

Zwitterionic Polymer P(AM-DMC-AMPS) as a Low-Molecular-Weight Encapsulator in Deepwater Drilling Fluid

open access: yesApplied Sciences, 2017
In deepwater oil and gas drilling, the high-molecular-weight encapsulator aggravates the thickening of the drilling fluid at low temperatures. Therefore, it is hard to manage the downhole pressure, and drilling fluid loss occurs.
Xin Zhao   +5 more
doaj   +1 more source

Rheological Parameter Calibration of Online Drilling Fluid Property Monitoring System

open access: yesZuanjingye yu wanjingye
In drilling operations, accurate and fast measurement of drilling fluid rheology is essential for safe and efficient drilling. Pipe flow method can monitor the rheological properties of drilling fluids in a real time manner, wall slip phenomenon can ...
Liujun TU   +7 more
doaj   +1 more source

Rheological properties for inelastic Maxwell mixtures under shear flow

open access: yes, 2009
The Boltzmann equation for inelastic Maxwell models is considered to determine the rheological properties in a granular binary mixture in the simple shear flow state. The transport coefficients (shear viscosity and viscometric functions) are {\em exactly}
Garzo, Vicente, Trizac, Emmanuel
core   +1 more source

New Class of Complex Models of Materials with Piezoelectric Properties with Differential Constitutive Relations of Fractional Order: An Overview

open access: yesFractal and Fractional
Rheological complex models of various elastoviscous and viscoelastic fractional-type substances with polarized piezoelectric properties are of interest due to the widespread use of viscoelastic–plastic bodies under loading.
Katica R. (Stevanović) Hedrih
doaj   +1 more source

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