Consider uniform flow past four slender bodies with elliptical cross-section of constant ellipticity along the length of 0, 0.125, 0.25 and 0.375, respectively, for each body. Here, ellipticity is defined as the ratio of the semiminor axis of the ellipse to the semimajor axis. The bodies have a pointed nose which gradually increases in cross-section with a radius of curvature 419mm to a mid-sec...

The Camenellan tommotiid Lapworthella bornholmiensis is systematically revised based on the original type material and collections of Small Shelly Fossils at Swedish Museum Natural History. species clearly differentiated from all other by its unique surface ornamentation. Variability in sclerite shape analyzed among 39 specimens four morphotypes are recognized: bilaterally subsymmetrical A scle...

Abstaact-Mercier’s localized perturbation criterion near the magnetic axis is examhied for a particular type of toroidal configuration of non-planar magnetic axis of variable curvature and torsion with non-circular (elliptically and triangularly deformed) plasma cross section for the ‘resonance case’. As an application, a numerical calculation is carried out for a class of equilibria that belon...

The results of the assessment dynamic behavior three-layer cylindrical shells circular and elliptical cross-sections under internal impulse loading are given. finite-element method was used to calculate indicators stress-strain state (SSS) such structures by NASTRAN software complex. values normal deflections stresses three forms intersection determined. A comparative analysis these with uneven...

This paper provides a general theoretical description of a weakly bound atomic system (a negative ion) interacting simultaneously with two (generally strong) fields, a static electric field and a monochromatic laser field having an arbitrary elliptical polarization. The zerorange δ-potential is used to model the interaction of a bound electron in a negative ion as well as the interaction of a d...

An 11.4 GHz photonic band-gap (PBG) structure where the rods in the inner row have an elliptical cross-section has been designed at MIT and manufactured and tested at high power and high repetition rate at SLAC. This structure exhibits lower surface magnetic fields on the rods relative to previous PBG structures tested at SLAC, which reduces the ohmic heating of the rod surface in an effort to ...

Variation elliptical piston skirt has better mechanical and thermodynamic properties and it is widely applied in internal combustion engine in recent years. Because of its complex form, its geometrical precision evaluation is a difficult problem. In this paper, quasi-particle swarm optimization QPSO is proposed to calculate the minimum zone error and ellipticity of crosssection linear profile, ...

A number of attempts have been made to study heat flow in circular cross-section of human limbs. But almost no attempt has been reported in literature about study of heat flow in the tissue layers of elliptical shaped human limbs. Therefore, a seminumerical model has been developed to study heat flow in peripheral layers of three-dimensional elliptical shaped human limbs for a steady state case...

Limb volumes, as would be estimated by the widely used right circular truncated cone model (right circular frustum), were analytically compared to volume estimates that would be obtained if limbs were represented by an elliptical cross section. A general expression for the ratio of circular to elliptical limb segmental volumes was developed in terms of the ratio of minimum to maximum limb radia...

Abstract Nanofluids contain nanometer-sized particles in suspension to enhance heat transfer by increasing the thermal conductivity. This paper provides an overview of particle size and volume fraction nanofluids, their roles enhancing transfer. Often, is enhanced dispersed with small diameter high concentration despite some debate about governing effects. The design elliptical cross-section zi...