Bubble deformation in magma under transient flow conditions

A method for bubble volume measurement under constant flow conditions in gas–liquid two-phase flow

Measuring the volume of a bubble, especially at its detachment, is a basic subject in gas-liquid two-phase flow research. A new indirect method for this measurement under constant flow conditions is presented. An electronic device is designed and constructed based on laser beam intensity. This device calculates the frequency of the bubble formation by measuring the total time of the formation p...

Flow Scheduling in Optical Flow Switching Networks Under Transient Conditions

We study flow scheduling to lightpaths in an optical flow switching network where flow arrivals are modeled as a time dependent Poisson process and their holding times are Pareto distributed. Scheduling decisions are taken at fixed time intervals (larger than 100 ms) in a central node and scheduled flows cannot be interrupted before their completion. The scheduling problem is represented as a d...

Erythrocyte deformation under shear flow.

Magma mixing enhanced by bubble segregation

In order to explore the materials’ complexity induced by bubbles rising through mixing magmas, bubbleadvection experiments have been performed, employing natural silicate melts at magmatic temperatures. A cylinder of basaltic glass was placed below a cylinder of rhyolitic glass. Upon melting, bubbles formed from interstitial air. During the course of the experimental runs, those bubbles rose vi...

Under Blood Flow Conditions

A human ex vivo thrombosis model was used to investigate whether recombinant annexin V (rANV) can prevent thrombus formation under venous and arterial blood flow conditions. In this model, blood from an antecubital vein of healthy donors was allowed to flow directly over the extracellular matrix of tumor necrosis factor-stimulated endothelial cells (TNF-ECMs). TNF-ECMs were preincubated with rA...