A girl aged three years was first seen on account of nasal obstruction and recurring bronchitis. Birth had been difficult because of a large head, and delivery was completed with the aid of forceps. The neonatal period was stormy ; she had pneumonia and feeding was difficult because of nasal obstruction. Some improvement took place after the first month, but the feeding difficulty persisted and...

This study conducts stress-controlled cyclic tension-tension tests from room temperature (RT) to 200 °C, at 50 °C intervals, on high-purity Cu films comprehensively understand the temperature-dependent fatigue life and related microstructural fracture characteristics. As evidenced by electron backscattering diffraction analysis, Ʃ3 boundary fraction decreases low-angle grain increases as increa...

Transport in laminar flows is governed by chaotic stirring and striation in long thin filaments. In turbulent flows, isotropic mixing dominates and tracers behave like stochastic variables. In this paper, we investigate the quasi-turbulent, intermediate regime where both chaotic stirring and turbulent mixing coexist. In these flows, the most common in nature, aperiodic Lagrangian coherent struc...

This paper presents the results of an experimental and theoretical investigation into the phenomenon of ‘striation free cutting’, which is a feature of fibre laser cutting of thin section mild steel. The paper concludes that the creation of very low roughness edges is related to an optimisation of the cut front geometry when the cut front is inclined at angles close to the Brewster angle for th...

The existence of low frequency waveguide modes of ion acoustic waves is demonstrated in magnetized plasmas for electron temperatures striated along the magnetic field lines. At higher frequencies, in a band between the ion cyclotron and the ion plasma frequency, radiative modes develop and propagate obliquely to the field away from the striation. Arguments for the subsequent formation and propa...