Thin silicon filaments were grown from the melt by three different methods: (a) RF-heated float-zone pedestal growth of high-purity, dislocation-free, single-crystal filaments, (b) growth of <112> axis, (111) face, dendrite filaments at high pulling rates from a supercooled melt in a quartz crucible, and (c) capillary die growth of thin-walled, small-diameter Si tube-filaments with high ratio o...

Slow magnetoacoustic waves observed in the solar corona are used as seismological probes of plasma parameters. It has been shown that dispersion properties such can vary significantly under influence wave-induced thermal misbalance. In current research, we study effect misbalance on inside magnetic-flux tube second-order thin-flux-tube approximation. Using parameters active region fan coronal l...

Pre-formed defects created by high-velocity impact have the potential to reduce structural integrity of lightweight, flexible structures. This study evaluates effect complex, partially confined detonations on thin steel plates with realistic pre-formed defects. Target containing pre-cut circular holes a diameter 8.0 mm are compared target exposed an initial ballistic from 7.62 APM2 projectiles....

Swirling hot air is a promising heat transfer enhancement technology for anti-icing applications in aircrafts, where the swirling flow accompanied by pretty high turbulence and quite thin boundary layer. It of interest to investigate compound characteristics configuration combined with surface structures on internal wall. This paper carries out series numerical computations obtain Nusselt numbe...

The aim of this study was to investigate the potential application metal foams in shell-tube recuperators. A356 aluminium foam cast around internal and external surfaces a thin-walled copper tube enhance heat transfer between separated water streams at different temperatures. results demonstrated that drastically increased efficiency due its large volumetric surface area high thermal conductivi...

Liquid flowing through a thin-walled "collapsible" tube similar to a vein, inclined to any angle between vertical and slightly above horizontal, differs from the flow in rigid tubes in that: a "collapsible" tube accepts any flow presented to it without affecting the rate of flow through the system; the lateral pressure at all cross sections throughout the tube is zero and does not change as the...

Introduction: Administration of LISA using thin and soft catheters like 5 F orogastric tube, though less invasive, is technically challenging needs expertise. We hypothesized, use a 2 mm Endotracheal (ET) tube for administration could be an easy convenient alternative. Methods: This prospective, single-centric, quasi-random, pilot trial conducted in the inborn unit tertiary care hospital from M...

The study investigates differences between three most widely used methods in voice training and therapy: Phonation into a resonance tube with the outer end in the air or submerged 2–10 cm in water (‘water resistance therapy’ with bubbling effect), and phonation into a very thin straw. One female speech trainer served as subject. Acoustic and electroglottographic (EGG) signals, and both mean and...

An evacuated tubular solar collector was fabricated from acrylics for improved resistance to shattering. A plasmatron was employed to apply a thin gas-barrier coating to the surfaces of the plastic tube to prevent/alleviate gas infiltration. Experiments were conducted to investigate the effect of vacuum level on the performance of the non-glass vacuum-tube solar collector. Inserted in the evacu...

From the study of the material collected during the Polychaete Workshop held in Lizard Island (Great Barrier Reef, Australia) in August 2013, six species belonging to the genus Armandia (Polychaeta, Opheliidae) are newly described. Armandia bifida n. sp. is characterised by the bifid shape of the prechaetal lobe in CH1-CH3, A. dolio n. sp. by the barrel-shaped anal (=pygidial) tube (=funnel), A...