Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 82 for “"Shear Viscosity"”.
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A complete calculation of Shear Viscosity in Strongly Interacting matter
… of massless u,d,s quarks with the MIT Bag Model. Shear Viscosity of the strongly interacting Fermi liquid is then calculated in a low-temperature Boltzmann-Landau transport approach, yielding a slight deviation from the Abrikosov-Khalatnikov standard result at quark degrees of freedom dominated …
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The Runny Gauge Plasma: shear viscosity to entropy for quarks and gluons
… ion physics: why the QGP has a remarkably small shear viscosity to entropy density ratio η/s ~< 0:5, near the confinement temperature. Our main argument hinges on combining both the thermal and vacuum fluctuations in resummation-improved perturbation theory. In this respect, we thoroughly analyse …
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Sintering of glass films on rigid substrates studied by optical techniques
The densification and shear viscosity of borosilicate glass (BSG) + silica films on rigid substrates were studied. Optical measurement techniques were devised to determine the shrinkage profiles of the free and constrained films and in-plane stress in the constrained films. These films were …
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Universal quantum viscosity in a unitary Fermi gas.
… reports the first measurement of the quantum shear viscosity in a6Li unitary Fermi gas, which is also the first measurement of a transport coefficient for a unitary Fermi gas. While equilibrium thermodynamic quantities have been theoretically and experimentally studied for the past few year, …
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A study of Asphalt Aging Behavior Using Molecular Dynamics Simulations
… by the increase of density, bulk modulus and viscosity. Considering the mechanical property of asphalt using MD simulations, both the unoxidized and oxidized asphalts deform more and fail faster with an increase in both compressive and tensile stress rates, especially under tensile stresses. …
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Polyethylene Terephthalate / clay nanocomposites. Compounding, fabrication and characterisation of the thermal, rheological, barrier and mechanical properties of Polyethylene Terephthalate / clay nanocomposites.
… have been found to be enhanced by decreasing the viscosity of the PET i.e. increasing the ¿flowability¿ of the PET melt during the injection or/and extrusion processes. The apparent shear viscosity of PETNCs is show to be significantly lower than un-filled PET at high shear rates. The viscosity …
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Quantum Transport and Scale Invariance in Expanding Fermi Gases
… of the energy and interaction dependent shear viscosity $\eta$ and bulk viscosity $\zeta$ in the hydrodynamic expansion of a two-component Fermi gas near a broad collisional (Feshbach) resonance. This expansion also provides a precise test of scale invariance and an examination of local …
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2-d Di-hadron Correlations at √sN N = 2.76 TeV using the ALICE experiment
… of medium properties of the QGP, such as shear viscosity. The inter- pretation is based on empirical models describing well-established hydrodynamical collective flow phenomena and possible novel phenomena related to in-medium par- ton fragmentation. The flow and Gaussian parameters …
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Viscosity and porosity contribute to both speed and decay of tectorial membrane traveling waves
… mechanisms, I examined the role of porosity and viscosity in wave propagation. Wave properties were measured for mouse TMs immersed in artificial endolymph solutions with poly-ethylene glycol (PEG) added to increase viscosity. Two PEGs with different molecular weights (MW) were used: one (8 kDa) …
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Aspects of finite temperature field theories in Ads/CFT
… the string theory side. Finally, I consider the shear viscosity to entropy density ratio in conformal field theories dual to Einstein gravity with curvature square corrections. For generic curvature square corrections I show that the conjectured viscosity bound can be violated. I present the …
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Dynamics Of Orientable Particulate Suspensions: Continuum Simulations Of ‘Living’ Fluids And Meso-Scale Simulations Of Anisotropic Particle Suspensions
… moments to its rheological behavior, such as shear viscosity.
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Evaluation of Sewage Digested Sludge Conditioning and Dewatering Through Qualitative and Quantitative Laboratory Methodologies Towards Process Monitoring
… digested sludge biofloc characteristics (size, shear viscosity and organic matter composition) affected the most the conditioning and dewatering results but these varied depending on the process conditions i.e. AAD versus CMAD and digestate handling conditions. The reduction in particle size and …
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Improved Fiber Orientation Predictions for Injection Molded Composites
… a rheological experiment measuring the shear viscosity and the normal stress difference is one approach to determine the phenomenological parameters. The formulations were worked out for the shear stress and the normal stress difference with respect to the fiber orientation in a …
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Transport coefficients in quantum chromodynamics
… of quarks, antiquarks and gluons, we find the shear viscosity, heat conductivity and cross-coefficients. The coefficients pertaining to qq mixtures, namely the thermal diffusion, diffusion and Dufour coefficient, the viscosities and heat conductivity are obtained and the conductivity of a qq …
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Two Particle Correlations And The Ridge In Relativistic Heavy Ion Collisions
… same context. Finally we address the effects of shear viscosity on our correlation formalism.</p>
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Something to do with Schrödinger spacetimes
… several characteristic quantities including the shear viscosity and the shear diffusion constant giving results consistent with other hydrodynamic analyses of the system.
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The nutritive, rheological and sensory quality of selected indigenous complementary foods used for 6 – 24 months infants and young children in African communities
… infants and young children. The flow properties (viscosity) of common indigenous/locally available African CPs (n = 8) plus CACFs (n = 23) were investigated at shear rates 0.001/s – 1000/s and 40 °C, using a rotational rheometer. The perception of the oral texture of the selected African CPs, …
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Dilute Non-Newtonian Particle Suspension Rheology And Microstructure
… questions about suspension rheology and shear flow-induced microstructural effects remain. First, a quasi-analytical study is presented that gives the first theory-based predictions on the effects of finite polymer relaxation time on rheological properties. In a constant viscosity, low polymer …
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Structure and Property Evolution During Film Formation From Binary Colloidal Suspensions
… composition of Al2O3:latex were studied by shear rheology, direct visualization, and a controlled environment stress measurement device. Their low shear viscosity was nearly independent of alumina:latex ratio for binary mixtures, whose particle size ratio (D¯ alumina:D¯latex) …
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Flow of viscoelastic fluids through banks of cylinders: an experimental and numerical investigation
… fluid (GNF) model with the Bird-Carreau viscosity function, as well as two viscoelastic constitutive equations, the Phan-Thien and Tanner (PTT) model and the Rivlin-Sawyers (RS) model with the Pap ana sta siou, Scriven, and Macosko (PSM) damping :function. The constitutive equations were …
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