Results 21 to 30 of about 3,922 (218)

Local viscoelasticity of living cells measured by rotational magnetic spectroscopy

open access: yesNature Communications, 2016
Cells are recognized as having viscoelastic properties, but whether the cytoplasm resembles a viscoelastic liquid or an elastic gel is still debated.
J.-F. Berret
doaj   +1 more source

Properties Tests and Mathematical Modeling of Viscoelastic Damper at Low Temperature With Fractional Order Derivative

open access: yesFrontiers in Materials, 2019
In the present paper, several dynamic properties tests of the viscoelastic damper at −5°C are conducted under different frequencies and displacements to investigate the dynamic behavior of the viscoelastic damper at low temperature.
Yeshou Xu   +6 more
doaj   +1 more source

Viscoelastic modeling of the stress relaxation behavior for the bionic extracellular matrix polymer scaffold

open access: yesMedicine in Novel Technology and Devices, 2022
Viscoelasticity of the extracellular matrix (ECM) plays a critical part in controlling cell behavior. However, the structure-related viscoelasticity of the synthetic ECM and its mechanism are rarely reported.
Yanqin Wang   +3 more
doaj   +1 more source

Viscoelastic properties of epithelial cells

open access: yesBiochemical Society Transactions, 2021
Epithelial cells form tight barriers that line both the outer and inner surfaces of organs and cavities and therefore face diverse environmental challenges. The response to these challenges relies on the cells’ dynamic viscoelastic properties, playing a pivotal role in many biological processes such as adhesion, growth, differentiation, and motility ...
openaire   +3 more sources

Measuring nanoscale viscoelastic parameters of cells directly from AFM force-displacement curves

open access: yesScientific Reports, 2017
Force-displacement (F-Z) curves are the most commonly used Atomic Force Microscopy (AFM) mode to measure the local, nanoscale elastic properties of soft materials like living cells.
Yuri M. Efremov   +4 more
doaj   +1 more source

Determination of macroscopic viscoelastic properties as well as macroscopic thermal deformation and cure-shrinkage properties of fiber reinforced plastics in consideration of cure process

open access: yesNihon Kikai Gakkai ronbunshu, 2019
This study presents a method of determining the macroscopic viscoelastic properties as well as the macroscopic coefficients of thermal expansion and cure-shrinkage of fiber-reinforced plastics (FRP) in consideration of the dependence of the viscoelastic ...
Risa SAITO   +5 more
doaj   +1 more source

Viscoelastic Properties of Unentangled Multicyclic Polystyrenes [PDF]

open access: yesPolymers, 2018
We report on the viscoelastic properties of linear, monocyclic, and multicyclic polystyrenes with the same low molecular weight. All polymers investigated were found to exhibit unentangled dynamics. For monocyclic polymers without inner loops, a cyclic-Rouse model complemented by the contribution of unlinked chains (whose fraction was determined ...
Zhi-Chao Yan   +3 more
openaire   +4 more sources

Computational study on temperature-dependencies of relaxation and elastic properties in anisotropic viscoelastic constitutive law for fiber-reinforced thermoplastic resin

open access: yesNihon Kikai Gakkai ronbunshu, 2019
With use of the numerical material testing (NMT) approach based on homogenization theory, a time-temperature reduction law is proposed for both relaxation and elastic properties in the orthotropic viscoelastic constitutive equation, which is supposed to ...
Koji YAMAMOTO   +4 more
doaj   +1 more source

A New Model to Calculate Stress Relaxation of Viscoelastic Material for Polyester-Wool-Spandex Yarn with Analytical Mechanics Approach

open access: yesJurnal Penelitian Fisika dan Aplikasinya, 2021
Many researchers have studied the mechanical properties of yarn in textile science because mechanical properties are the essential parameter in determining yarn quality.
Valentinus Galih Vidia Putra   +2 more
doaj   +1 more source

Stress intensity factor for a small radial crack located on external edge of a rotating viscoelastic cylinder subjected to internal pressure and temperature distribution [PDF]

open access: yesمهندسی مکانیک شریف, 2021
In this research, stress intensity factor of a small radial crack in a rotating thick cylinder made of viscoelastic materials subjected to internal pressure and radial temperature distribution is investigated. The radial crack is assumed to be located at
R. Nikpour, H. Mahbadi
doaj   +1 more source

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