Results 51 to 60 of about 51,744 (287)
Bulk viscosity in superfluid neutron star cores
, 2001 We study the bulk viscosity in neutron star cores due to modified Urca processes involving nucleons, electrons and muons and analyze its reduction by singlet-state or triplet-state superfluidity of nucleons.
D. G. Yakovlev +2 more
core +1 more source
Bulk viscosity of a gas of massless pions [PDF]
Physical Review C, 2009 In the hadronic phase, the dominant configuration of QCD with two flavors of massless quarks is a gas of massless pions. We calculate the bulk viscosity (zeta) using the Boltzmann equation with the kinetic theory generalized to incorporate the trace anomaly.
Chen, Jiunn-Wei, Wang, Juven
openaire +4 more sources
Bulk viscosity driving the acceleration of the Universe [PDF]
General Relativity and Gravitation, 2006 The possibility that the present acceleration of the universe is driven by a kind of viscous fluid is exploited. At background level this model is similar to the generalized Chaplygin gas model (GCGM). But, at perturbative level, the viscous fluid exhibits interesting properties.
Fabris, J. C. +2 more
openaire +3 more sources
FEBS Letters, EarlyView.We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace +6 more
wiley +1 more source
PHENOMENOLOGICAL THEORIES OF BULK VISCOSITY
Acta Physica Sinica, 1950 A relaxational bulk visco-elastic theory is formulated, leading to an equation recently assumed by Hall. A derivation is given of an expression for the coefficient of sound attenuation resulting from both shearing and bulk viscosities. The result is compared with classical hydrodynamics generalized in a manner similar to that given by Tisza.
openaire +2 more sources
The Universe With Bulk Viscosity [PDF]
Chinese Journal of Astronomy and Astrophysics, 2003 Exact solutions for a model with variable $G$, $Λ$ and bulk viscosity are obtained. Inflationary solutions with constant (de Sitter-type) and variable energy density are found. An expanding anisotropic universe is found to isotropize during its course of expansion but a static universe is not.
openaire +2 more sources
Investigating transcription factor dynamics in health and disease using FRAP
FEBS Letters, EarlyView.FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj +3 more
wiley +1 more source
Tribology OnlineThis paper formulated a modified Reynolds equation that can calculate the lubrication characteristics of bearings with high-viscosity surface layers on both bearing surfaces expressed by arbitrary viscosity function.
Kyosuke Ono
doaj +1 more source
Shear and Bulk Acceleration Viscosities in Simple Fluids
Physical Review Letters, 2022 Inhomogeneities in the velocity field of a moving fluid are dampened by the inherent viscous behaviour of the system. Both bulk and shear effects, related to the divergence and the curl of the velocity field, are relevant. On molecular time scales, beyond the Navier-Stokes description, memory plays an important role. We demonstrate here on the basis of
Johannes Renner +2 more
openaire +3 more sources
FEBS Open Bio, EarlyView.Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley +1 more source