Kelvin and Ireland

The Kelvin and Temperature Measurements

The International Temperature Scale of 1990 (ITS-90) is defined from 0.65 K upwards to the highest temperature measurable by spectral radiation thermometry, the radiation thermometry being based on the Planck radiation law. When it was developed, the ITS-90 represented thermodynamic temperatures as closely as possible. Part I of this paper describes the realization of contact thermometry up to ...

Kelvin-Helmholtz Instabilities

Responding to Migrant and Refugee Healthcare Needs in Ireland

Human migration, both voluntary and precipitated by conflict and persecution, continues to pose challenges to the healthcare infrastructure of host countries. The scale of international migration to Ireland has increased substantially in recent years. Both economic migrants and refugees have complex health needs including those related to infectious diseases, malnourishment, gender-specific iss...

Band gaps and the Kelvin-Helmholtz instability.

We consider the linear stability of two inviscid fluids, in the presence of gravity, sheared past each other and separated by a flexible plate. Conditions for exponential growth of velocity perturbations are found as functions of the flexural rigidity of the plate and the shear rate. This Kelvin-Helmholtz instability is then analyzed in the presence of plates with spatially periodic (with perio...

Antihydrogen at sub-Kelvin temperatures

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