The ISRS GN Model, an Efficient Tool in Modeling Ultra-Wideband Transmission in Point-to-Point and Network Scenarios

An analytical model to estimate nonlinear performance in ultra-wideband optical transmission networks is presented. The model accurately accounts for inter-channel stimulated Raman scattering, variably loaded fibre spans and is validated through C+L band simulations for uniform and probabilistically shaped 64-QAM

Experimental Demonstration of Geometrically-Shaped Constellations Tailored to the Nonlinear Fibre Channel

A geometrically-shaped 256-QAM constellation, tailored to the nonlinear optical fibre channel, is experimentally demonstrated. The proposed constellation outperforms both uniform and AWGN-tailored 256-QAM, as it is designed to optimise the trade-off between shaping gain, nonlinearity and transceiver impairments

Comparison between microscopically and macroscopically hippocampal activity in epilepsy patients

Thirty percent of epilepsy patients do not respond to adequate antiepileptic drugs and for those patients, epilepsy surgery is an option. The invasive measurements of depth electroencephalography are used to localize the seizure onset zone, which is later resected to achieve seizure freedom, but are complicated because of their invasive nature. In this study, dEEG measurements of the hippocampus were compared to anatomically-matched virtual electrodes reconstructed out of MEG signals, to investigate whether restating-state non-invasive measurements reflect resting-state activity that is measured invasively with dEEG Our findings indicate MEG being a possible clinical replacement for depth EEG in the future

Adaptive Geometric Constellation Shaping in a Transmission System with a Real-time Optimisation Loop

We demonstrate the real-time performance of an adaptive intelligent transceiver, tailoring the constellation shape to the transmission system by iteratively maximising the information throughput, quantified by the GMI

Mixed convection in a 90 Deg horizontal bend

The effect of a developing secondary flow, induced by both centrifugal and buoyancy forces, on heat transfer inside a horizontal curved pipe is studied. The governing equations are solved in a finite element formulation using tri-quadratic elements for the velocity as well as for the temp. field. Due to interaction of centrifugal, buoyancy and pressure forces, a complex secondary flow develops, consisting of two secondary longitudinal vortices, perpendicular to the axial flow. Heat transfer shows to be increased considerably as a result of the three-dimensional flow fiel