The current study involves developing a three-dimensional transient finite element (FE) model to evaluate the thermal performance of an attic radiant barrier system (ARBS) as an energy efficient technology. The heat transfer modes of convection, radiation, and conduction were considered in the FE model. The results from the FE analysis were then validated based on hourly experimental data colle...

OBJECTIVES Gold miners use mercury to extract gold from ore adding liquid mercury to the milled gold-containing ore. This results in a mercury-gold compound, called amalgam. Miners smelt this amalgam to obtain gold, vaporizing it and finally inhaling the toxic mercury fumes. The objective was to merge and analyze data from different projects, to identify typical signs and symptoms of chronic in...

This analysis addresses the propagation of spiral edge flames found in von Kármán swirling flows induced in rotating porous-disk burners. In this configuration, a porous disk is spun at a constant angular velocity in an otherwise quiescent oxidizing atmosphere. Gaseous methane is injected through the disk pores and burns in a flat diffusion flame adjacent to the disk. Among other flame patterns...

In this paper, we study the properties of Gerstewitz nonlinear scalar functional with respect to coradiant set and radiant in real linear space. With help nonconvex separation theorem co-radiant set, first obtain that is a special co-radiant(radiant) when corresponding set. Based on subadditivity property convex calculate its Fenchel(approximate) subdifferential. As applications, derive optimal...

Precise knowledge of the angle between the meteor vector velocity and the radar beam axis is one of the largest source of errors in the Arecibo Observatory (AO) microme-teor observations. In this paper we study ∼250 high signal-to-noise ratio (SNR) meteor head-echoes obtained using the dual-beam 430 MHz AO Radar in Puerto Rico, in or-5 der to reveal the distribution of this angle. All of these ...

We report direct experimental evidence of the collective super-radiant mode in Bragg structure containing 60 InAs monolayer-based quantum wells (QWs) periodically arranged in GaAs matrix. Time-resolved photoluminescence measurements reveal an appearance of the additional super-radiant mode, originated from coherent collective interaction of QWs. This mode demonstrates a super-linear dependence ...