Towards the clarity limit in optical fibre

Article Abstract:

It has been possible to obtain an enhanced understanding of the diffusion of the water in the flowing glass during the existing manufacturing process for optical fibre. This research used an unconventional approach, with one of the standard processes for manufacturing optical fibre being interrupted at a key stage and the condition of the glass rod at that point being analyzed. The spatial distribution of water in the glass rods was measured and the distribution was explained quantitatively with a mathematical model of diffusion in a medium with essentially perfect cylindrical symmetry.

Fiber optics, Glass fibers

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The effect of molecular noise and size control on variability in the budding yeast cell cycle

Article Abstract:

A study using single-cell imaging of fluorescently labeled budding yeast to measure times from division to budding and from budding to the next division is presented. The analysis demonstrate that molecular noise has a role in generating variability in a cellular transition, and provides a precision quantitative framework for the analysis of size control.

Science & research, Analysis, Physiological aspects, Cell cycle, Cell division, Yeast fungi, Yeasts (Fungi)

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Scalar turbulence

Article Abstract:

Issues concerning the advection of a passive substance by a turbulent flow are discussed. Research in this area has focused on the case where the advected substance is passive and therefore has a limited back effect on the flow, and on situations of highly controlled laboratory turbulence.

Turbulence

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