Foam viscosity is a key property to predict the foam flow in narrow channels and porous media. In this study, we investigated effects of quality temperature on dynamic how modifying composition colloidal system can alter rheology. It was shown that addition nanoparticles polymer improve stability at high-temperature conditions increase apparent viscosity. The results confirmed be predicted usin...

Hard-magnetic 3D-printer filaments made of 40 wt. % SrO(Fe2O3)6/PA12 composites using a twin-screw extruder are being studied to be used for Magnetic Field Assisted Additive Manufacturing (MFAAM). The time dependence the magnetic properties above softening temperature PA12 matrix but below melting point was biaxial Vibrating Sample Magnetometer (VSM). Specifically, rotation particles in softene...

Extensive isothermal-isobaric ~NPT! molecular dynamics simulations at many different temperatures and pressures have been carried out in the well-known Kob–Andersen binary mixture model to monitor the effect of pressure ~P! and temperature ~T! on the dynamic properties such as the viscosity (h) and the self-diffusion (Di) coefficients of the binary system. The following results have been obtain...

The linear stability analysis of an uniform shear flow of granular materials is revisited using several cases of a Navier-Stokes’-level constitutive model in which we incorporate the global equation of states for pressure and thermal conductivity (which are accurate up-to the maximum packing density νm) and the shear viscosity is allowed to diverge at a density νμ (< νm), with all other transpo...

Large Eddy Simulation (LES) is performed to study the physiological pulsatile transition-to-turbulent non-Newtonian blood flow through a 3D model of arterial stenosis by using five different blood viscosity models: (i) Power-law, (ii) Carreau, (iii) Quemada, (iv) Cross and (v) modified-Casson. The computational domain has been chosen is a simple channel with a biological type stenosis formed ec...

Changes in dynamic viscosity of the solutions of a high-molar-mass hyaluronan (HA) were monitored using a rotational viscometer. The degradative conditions generated in the HA solutions by a system comprising ascorbate plus Cu(II) plus H(2)O(2) were studied either in the presence or absence of a drug--naproxen or acetylsalicylic acid. Continual decrease of the dynamic viscosity of HA solution w...

Signal fluctuations in a fluorescence time trace on nanosecond time scales can be induced by specific quenching interactions that report on the dynamics of biomolecules. Fluorescence correlation spectroscopy is an analysis tool to investigate dynamic processes on time scales from pico- to milliseconds or longer. Under certain conditions, e.g. in a solvent of high viscosity, a fluorescence label...