the second virial coefficients are given as a spherical-core contribution plus a series of nonspherical perturbation terms. a revised analysis is given of the effect of long-range nonspherical terms in the intermolecular potential on the second virial coefficient given by a preferred hfdidl spherical core treatment of the integration for small intermolecular distances. this effect is considered...

We intend to use the impact of microlensing on Fe III emission line blend along with a measure its gravitational redshift estimate mass quasar's central supermassive black hole (SMBH). fit feature in multiple spectroscopic observations between 2008 and 2016 gravitationally lensed quasar Q 0957+561 relatively high signal-to-noise ratios (at adequate wavelength). Based statistics magnifications, ...

alfvén waves dissipation is an extensively studied mechanism for the coronal heating problem. these waves can be generated by magnetic reconnection and propagated along the reconnected field lines. here, we study the generation of alfvén waves at the presence of both steady flow and sheared magnetic field in the longitudinally density stratified of solar spicules. the initial flow is assumed to...

in this paper, a new approach for estimating the number of wideband sources is proposed which is based on rss or ism algorithms. numerical results show that the mdl-based and eit-based proposed algorithm havea much better detection performance than that in egm and aic cases for small differences between the incident angles of sources. in addition, for similar conditions, rss algorithm offers hi...

In this work an analytical equation of state has been employed to calculate the PVT properties ofternary refrigerant mixtures. The theoretical EoS is that of Ihm, Song and Mason, which is based onstatistical-mechanical perturbation theory, and the two constants are enthalpy of vaporization ΔHvapand molar density ρnb, both at the normal boiling temperature. The following three temperaturedepende...

We address the deviations of the scaling relations of elliptical galaxies from the expectations based on the virial theorem and homology, including the “tilt” of the “fundamental plane” and the steep decline of density with mass. We show that such tilts result from dissipative major mergers once the gas fraction available for dissipation declines with progenitor mass, and derive the scaling pro...

Abstract Purpose-The purpose of this paper is to review a sample of the literature relating to Interpretive Structural Modelling (ISM) and its deployment for modelling purposes in the area of supply chain management (SCM). Design/methodology/approach- The literature is examined from the three perspectives. First, concept of ISM and examines ISM as modelling technique. Second, use of ISM by ...

The interstellar medium is highly dynamic and turbulent. However, little or no attention has been paid in the literature to the implications that this fact has on the validity of at least six common assumptions on the virial theorem (VT), which are as follows. (i) The only role of turbulent motions within a cloud is to provide support against collapse; (ii) the surface terms are negligible comp...

The paper reviews the history of B-spline methods for atomic structure calculations bound states. It highlights various aspects variational method, particularly with regard to orthogonality requirements, iterative self-consistent eigenvalue problem, and related sphf, dbsr-hf, spmchf programs. B-splines facilitate mapping solutions from one grid another. following describes a two-stage approach ...

Apart from the quark and gluon kinetic potential energies, nucleon mass includes a novel energy of pure quantum origin resulting anomalous breaking scale symmetry. We demonstrate effects this (QAE) in QED, as well toy 1 + dimensional non-linear sigma model where it contributes non-perturbatively, way resembling Higgs mechanism for masses matter particles electro-weak theory. The QAE contributio...