We proposed and demonstrated a “refreshable microfluidic channel.” This channel was constructed between two stacked glass slides with a 100 m thick spacer. Each surface of the slides was frosted by being ground with an abrasive and made hydrophobic due to the treatment with 1,1,1,3,3,3-hexamethyldisilazane. A line was drawn on the surface using dimethyl sulfoxide (DMSO) as the ink. Because this...

The paper presents the results of an experimental study to investigate coolant interaction in adjoining fuel assemblies VVER reactor core composed TVSA-T and upgraded TVSA FAs. processes in-core flow were simulated a test wind tunnel. experiments conducted using models representing different portions bundle consisted measuring radial axial airflow velocities representative areas within FAs inte...

Abstract Spacer wires are frequently applied as the positioning components of fuel bundles in lead-based fast reactor assemblies. It is extremely important to carry out research impacts from spacer on coolant flow within assemblies, and therefore safety performances core. In this paper, open source CFD calculation software OpenFOAM was adopted perform refined numerical simulation multi-pitch as...

We study the reflection of a tightly focused Gaussian beam off a near symmetric resonant tunneling structure comprising two identical coupled waveguides. The coupled waveguides are loaded on each side by a spacer layer and a high index prism. Reflection of a Gaussian beam from such a resonant structure is associated with beam distortion and even beam splitting. We start with the distortion of t...

Abstract Feed spacers are the critical components of any spiral-wound filtration module, dictating performance. Three spacer designs, namely a non-woven commercial (varying filament cross-section), symmetric pillar spacer, and novel hole-pillar (constant diameter) were studied using Direct Numerical Simulations (DNS), 3-D printed subsequently experimentally tested in lab-scale ultrafiltration s...

[structure: see text] A new type of donor-spacer-acceptor podand system has been synthesized and proved as an efficient dual channel fluorosensor for Li+, Mg2+, and Ca2+. The known ability for the N-oxide function to bind Lewis acids is the key step in the appearance of a new emitting charge-transfer (CT) excited state. The occurrence of this CT state for alkaline earth (Mg2+ and Ca2+) and not ...

A pear shaped non-electrostatic spacer, composed of steel with a volume of 250 ml and equipped with a facemask containing integrated inlet and outlet valves for inspiration and expiration, was compared with three plastic spacers. The plastic spacers were primed with repeated puffs from a budesonide pressurised metered dose inhaler (p-MDI) to minimise the electrostatic charge on the plastic. The...

Background: The aim was to evaluate the benefit of technical advances for treatment planning: introduction of a hydrogel spacer, VMAT (volumetric modulated arc therapy) and a single biological organ at risk objective for the rectum and bladder. Initial standard was a step-and-shoot IMRT (intensity modulated radiotherapy) without a spacer and conventional organ at risk objectives.  Material...