Density fluctuations in supercooled liquids near the glass transition relax in multiple steps. The short time relaxation is known as β-relaxation and the final long time relaxation is called α-relaxation. It is believed that the long time α-relaxation is a cooperative phenomena associated with a growing length scales, whereas the short-time β-relaxation is often attributed to spatially local pr...

Periodontal ligament is a thin layer of soft tissue that connects root of a tooth to the surrounding alveolar bone. These ligaments play an important role in initiating tooth movement when loads are applied to teeth with orthodontic appliances. The majority of such soft tissues exhibit as viscoelastic bodies or have a time-dependent behavior. Due to the viscoelastic behavior of the periodontal ...

The paper discusses some N Q R / N M R studies performed on Y B a C u O superconductors at the University of Zürich. In particular, we review studies performed in Y 2 B a 4 C u 7 0 1 5 by measuring various planar Cu N Q R / N M R parameters: the spin-lattice relaxation time, the Knight shift and the indirect component of the Gaussian contr ibution to the spin-spin relaxation time. The temperatu...

strain induced precipitation in hsla-100 steel was investigated by conducting hotcompression and relaxation tests at temperature range of 850°c to 1100°c and strain rate of 0.001s-1 to 1s-1. the absence of dynamic recrystallization at temperatures below 1000°c was attributedto the influence of dynamic precipitation. the stress relaxation tests showed that strain inducedprecipitation is possible...

Glassy aqueous binary mixtures generally exhibit a water induced dielectric relaxation. The characteristic time-scale of this relaxation follows an Arrhenius temperature dependence with a nearly universal activation energy. We here demonstrate for a series of model aqueous mixtures that the relaxation time also follows a remarkably general exponential dependence on the weight fraction of water....

H single point magnetic resonance imaging (SPI)[1],[2],[3] has been introduced in the literature as a method for determining relaxation characteristics of semi-crystalline polymers and for extracting MRI images from such samples. The work presented in the literature to date demonstrates the applicability of this technique. In this work, SPI has been applied to the direct observation of stress-i...

We apply theta body relaxations to the Ki-cover problem and show polynomial time solvability for certain classes of graphs. In particular, we give an effective relaxation where all Kip-hole facets are valid, and study its relation to an open question of Conforti et al. For the triangle free problem, we show for Kn that the theta body relaxations do not converge by (n−2)/4 steps; we also prove f...

The spin-lattice relaxation time τ SL is a key quantity both for the dynam-ical response of ferromagnets excited by laser pulses and as the speed limit of magneto-optical recording. Extending the theory for the electron param-agnetic resonance of magnetic impurities to spin-lattice relaxation in ferro-magnetic rare earths we calculate τ SL for Gd and find a value of 48 ps in very good agreement...

A rigorous proof of the zero-relaxation-time limits in the hydrodynamic equations for plasmas is given. The equations consist of the Euler equations for the electrons and/or ions coupled with a linear or nonlinear Poisson equation. The proof is based on high energy estimates for the Euler equations and appropriate compactness arguments. The theorem is valid for all adiabatic states for both ele...