Results 31 to 40 of about 8,782 (261)

Structural relaxation in silicate melts and non-Newtonian melt rheology in geologic processes [PDF]

, 1989
The timescale of structural relaxation in a silicate melt defines the transition from liquid (relaxed) to glassy (unrelaxed) behavior. Structural relaxation in silicate melts can be described by a relaxation time, , consistent with the observation that ...
Dingwell, Donald B., Webb, Sharon L.
core   +1 more source

High and low molecular weight crossovers in the longest relaxation time dependence of linear cis-1,4 polyisoprene by dielectric relaxations [PDF]

, 2010
The dielectric relaxation of cis-1,4 Polyisoprene [PI] is sensitive not only to the local and segmental dynamics but also to the larger scale chain (end-to-end) fluctuations.
Alegría, Angel, Riedel, Clément, Colmenero, Juan, Tordjeman, Philippe, Colmenero de León, Juan   +4 more
core   +1 more source

A Distinguishable Role of eDNA in the Viscoelastic Relaxation of Biofilms [PDF]

mBio, 2013
ABSTRACT Bacteria in the biofilm mode of growth are protected against chemical and mechanical stresses. Biofilms are composed, for the most part, of extracellular polymeric substances (EPSs). The extracellular matrix is composed of different chemical constituents, such as proteins, polysaccharides, and extracellular DNA (eDNA ...
Peterson, Brandon W., van der Mei, Henny C., Sjollema, Jelmer, Busscher, Henk J., Sharma, Prashant K.   +4 more
openaire   +3 more sources

Effects of Allicin Supplementation on the Mechanical and Viscoelastic Properties of the Tibia in Bovans Brown Hens

Applied Sciences
Bone tissue exhibits viscoelastic behavior, and stress relaxation analysis provides valuable insight into its time-dependent mechanical performance. This study aimed to evaluate the effects of allicin supplementation on the mechanical and viscoelastic ...
Anna Skic, Zbigniew Stropek, Kamil Drabik, Pavol Findura, Miroslav Prístavka   +4 more
doaj   +1 more source

Numerical simulation of single- and multi-step shear stress relaxations of isotropic magnetorheological elastomer using fractional derivative viscoelastic models

Archives of Mechanics, 2022
The paper presents numerical simulations of single- and multi-step shear stress relaxations of isotropic magnetorheological elastomer (MRE) using fractional derivative Maxwell and Kelvin–Voigt viscoelastic models. The isotropic MRE has been fabricated by
T.H. Nam, I. Petríková, B. Marvalová
doaj   +1 more source

Temperature dependence of relaxation spectra for highly hydrated gluten networks

, 2010
In the present investigation, the temperature dependence (0e50 C) of the relaxation spectrum of hydrated gluten was studied using novel numerical algorithms. Tikhonov regularization, in conjunction with the L-curve criterion for optimal calculation of
Kasapis, Stefan, Kontogiorgos, Vassilis
core   +1 more source

Microfluidic systems for the analysis of the viscoelastic fluid flow phenomena in porous media [PDF]

, 2011
In this study, two microfluidic devices are proposed as simplified 1-D microfluidic analogues of a porous medium. The objectives are twofold: firstly to assess the usefulness of the microchannels to mimic the porous medium in a controlled and simplified ...
P. J. Hamersma, Pinho, F.T. (author), Galindo-Rosales, Francisco J, Oliveira, M.S.N., E. van Bokhorst, Hamersma, P.J., Campo-Deaño, L., Fernando T. Pinho, F. T. Pinho, Francisco J. Galindo Rosales, Laura Campo Deaño, Hamersma, P.J. (author), Galindo-Rosales, F.J., Manuel A. Alves, Campo-Deaño, Laura, M. A. Alves, Oliveira, M. S. N., L. Campo-Deaño, Galindo-Rosales, F. J., M. S. N. Oliveira, Alves, M.A. (author), Mónica S. N. Oliveira, Oliveira, M.S.N. (author), F. J. Galindo-Rosales, Oliveira, Monica, Alves, M.A., Van Bokhorst, E. (author), Campo-Deano, L. (author), Pinho, F.T., van Bokhorst, E., Galindo-Rosales, F.J. (author)   +30 more
core   +1 more source

Soft Mechanical‐Electrical Logic Using Liquid Metal‐Filled 3D‐Printed Architectures

Advanced Engineering Materials, EarlyView.
We present 3D‐printed soft mechanical–electrical logic elements that use liquid metal–filled silicone tubes actuated by thermoplastic polyurethane/polylactic acid (TPU/PLA) architectures to produce Boolean operations. Complementary normally open and normally closed unit cells perform repeatable binary transitions and can be combined into more complex ...
Christoph Lehmann, Ryan Kalgreen, Laura M. Comella   +2 more
wiley   +1 more source

Decoupling between Translational Diffusion and Viscoelasticity in Transient Networks with Controlled Network Connectivity

Gels, 2022
The mobility of sustained molecules is influenced by viscoelasticity, which is strongly correlated with the diffusional property in polymeric liquid. However, the study of transient networks formed by a reversible crosslink, which is the viscoelastic ...
Takuya Katashima, Ryunosuke Kobayashi, Shohei Ishikawa, Mitsuru Naito, Kanjiro Miyata, Ung-il Chung, Takamasa Sakai   +6 more
doaj   +1 more source

Gravitational viscoelastic relaxation of eccentrically nested spheres [PDF]

Geophysical Journal International, 1999
SUMMARY We present a semi-analytical solution to the 2-D forward modelling of viscoelastic relaxation in a heterogeneous model consisting of eccentrically nested spheres. Several numerical methods for 2-D and 3-D viscoelastic relaxation modelling have been applied recently, including finite-element and spectral-finite-diVerence schemes.
Martinec, Z., Wolf, D.
openaire   +3 more sources