− The two-dimensional linear stability of creeping plane Couette and Poiseuille flow of a viscoelastic fluid with viscous heating is investigated using a Galerkin-type Chebyshev collocation approach and a non-isothermal formulation of the FENE-P constitutive model. Viscous heating is observed to have a destabilizing/stabilizing tendency for Couette/Poiseuille flow at long to moderate disturbanc...

We present some of the results of an ongoing collaboration to sudy the dynamical properties of galaxy clusters by means of high resolution adiabatic SPH cosmological simulations. Results from our numerical clusters have been tested against analytical models often used in X-ray observations: β model (isothermal and polytropic) and those based on universal dark matter profiles. We find a universa...

The isothermal compressibility of mercury at 20 "C and 192 bar has been determined with an accuracy estimated at k 0.4 %, which represents a considerable increase in accuracy over previous determinations. The value obtained is within 0.3% of that derived from the velocity of sound by Davis and Gordon, although the accuracy claimed for the latter was only k 0.8 %. 1. Introduction In a companion ...

Molecular diagnostic measurements are currently underpinned by the polymerase chain reaction (PCR). There are also a number of alternative nucleic acid amplification technologies, which unlike PCR, work at a single temperature. These 'isothermal' methods, reportedly offer potential advantages over PCR such as simplicity, speed and resistance to inhibitors and could also be used for quantitative...

Concurrent hyperthermia and radiation therapy in treatment of cancer show a strong evidence of a synergistic enhancement. We designed a new self-regulating Thermo-Brachytherapy seed, which serves as a source of both radiation and heat for concurrent administration of brachytherapy and hyperthermia. The Thermo-Brachytherapy seed has a core of ferromagnetic material which produces heat when subje...

In this study, the energy release rates in a centrally perforated star-shaped disk, which was made of a polymeric material, under internal pressure and thermal loads, were determined. The deformations of the disk were constrained by a circular steel ring enclosing the disk. Two constitutive models, namely, Hookean model and Ogden model, were used to model the constitutive behavior of the materi...

Context. In isothermal disks the migration of protoplanets is directed inward. For small planetary masses the standard type I migration rates are so fast that this may result in an unrealistic loss of planets into the stars. Aims. We investigate the planet-disk interaction in non-isothermal disks and analyze the magnitude and direction of migration for an extended range of planet masses. Method...

Ž . Ž . Results of isothermal high-pressure up to 120 MPa and isobaric Ps0.1 and 51 MPa temperature studies of dielectric Ž . Ž . permittivity in nitrobenzene–dodecane binary solution are presented. The dependencies of ́ P and ́ T obtained can be well portrayed by isomorphic relations with the same value of the critical exponent fs1yaf0.88. The influence of correction-to-scaling terms for the t...

The thermal decomposition kinetics of melaminium bis(trichloroacetate) dihydrate (MTCA) has been studied by thermogravimetry and derivative thermogravimetry techniques using non-isothermal experiments at three different heating rates 10, 15, and 20 ◦C min−1. Non-isothermal studies of MTCA revealed that the decomposition occurs in three stages involving dehydration and decomposition. The apparen...

The KATRIN experiment in Karlsruhe Germany will monitor the decay of tritium, which produces an electron-antineutrino. While the present upper bound for its mass is 2 eV/c2, KATRIN will search down to 0.2 eV/c2. If the dark matter of the galaxy cluster Abell 1689 is modeled as degenerate isothermal fermions, the strong and weak lensing data may be explained by degenerate neutrinos with mass of ...