the present paper deals with the prediction of three-dimensional fluid flow and heat transfer in rib-roughened ducts of square cross-section. such flows are of direct relevance to the internal cooling system of modern gas turbine blades. the main objective is to assess how a recently developed variant of a cubic non-linear model (proposed by craft et al. (1999)), that has been shown to produce ...

A detailed finite-difference approach is presented for the simulation of transient radial flow in multi-layer systems. The proposed discretization scheme simulates drawdown within the well more accurately than commonly applied schemes. The solution is compared to existing (semi) analytical models for the simulation of slug tests and pumping tests with constant discharge in singleand multi-layer...

We present NAOMI/OASIS adaptive-optics assisted integral-field spectroscopy of the transitional massive hypergiant IRC +10420, an extreme masslosing star apparently in the process of evolving from a Red Supergiant toward the Wolf-Rayet phase. To investigate the present-day mass-loss geometry of the star, we study the appearance of the line-emission from the inner wind as viewed when reflected o...

The volume contains prominent information used to evaluate the visual quality of natural products and can be measured using a computer vision system. system provides an alternative method for measuring products, especially axi-symmetric products. obtained integral solid revolution by rotating boundary curve upper half object cross-section. This study proposes based on cubic spline interpolation...

The present paper deals with the prediction of three-dimensional fluid flow and heat transfer in rib-roughened ducts of square cross-section. Such flows are of direct relevance to the internal cooling system of modern gas turbine blades. The main objective is to assess how a recently developed variant of a cubic non-linear model (proposed by Craft et al. (1999)), that has been shown to produce ...

Consider randomly scattered radio transceivers in Rd, each of which can transmit signals to all transceivers in a given randomly chosen region about itself. If a signal is retransmitted by every transceiver that receives it, under what circumstances will a signal propagate to a large distance from its starting point? Put more formally, place points {xi} in Rd according to a Poisson process with...

If the electroweak Higgs vacuum expectation value $v$ in early universe is $\sim 1 \%$ higher than its present $v_0=246$ GeV, $^7$Li puzzle BBN and CMB/$\Lambda$CDM tension with late-universe measurements on Hubble parameter are mitigated. We propose a model of an axion coupled to field, named ``axi-Higgs'', mass $m_a \sim 10^{-30} - 10^{-29}\,{\rm eV}$ decay constant $f_a 10^{17} 10^{18}\,{\rm...