Measurements of the insertion loss due to radiation curved dielectric image lines of rectangular cross section are described for the frequency range from 26 to 90 GHz. A minimum acceptable curvature ...

We propose a new method to achieve single-polarization guidance in a hollow-core negative-curvature fiber. Simulation results show that coating a layer of high-index material with a suitable thickness ...

This document is the result of a joint initiative by the British Thoracic Society (BTS) and the Society of Cardiothoracic Surgeons of Great Britain and Ireland (SCTS) to produce detailed ...

Wannier-Berri calculates Brillouin zone integrals very fast with high precision over an ultradense k-grid. This is achieved due to : Using Fast Fourier Transform account of symmetries, to reduce ...