Results 241 to 250 of about 140,191 (290)

Hepatitis B in Africa: Progress toward World Health Organization 2030 targets, persistent disparities, and COVID-19 setbacks. [PDF]

Clin Mol Hepatol
Wang K, Zhou R.
europepmc   +1 more source

Improvements in disruption prediction at ASDEX Upgrade [PDF]

Fusion Engineering and Design, 2015
Abstract In large-scale tokamaks disruptions have the potential to create serious damage to the facility. Hence disruptions must be avoided, but, when a disruption is unavoidable, minimizing its severity is mandatory. A reliable detection of a disruptive event is required to trigger proper mitigation actions.
B Cannas, A Fanni, A Pau
exaly   +5 more sources

Mapping of the ASDEX Upgrade operational space for disruption prediction [PDF]

2011 IEEE/NPSS 24th Symposium on Fusion Engineering, 2011
The mapping of the n-dimensional plasma parameter space of ASDEX Upgrade (AUG) has been performed using a 2-D self-organizing map (SOM), which reveals the map potentiality in data visualization. The proposed approach allows us the definition of simple displays capable of presenting meaningful information on the actual state of the plasma, but it also ...
B Cannas, A Fanni, G Sias
exaly   +5 more sources

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Disruption prediction with adaptive neural networks for ASDEX Upgrade

Fusion Engineering and Design, 2011
Abstract In this paper, an adaptive neural system has been built to predict the risk of disruption at ASDEX Upgrade. The system contains a Self Organizing Map, which determines the ‘novelty’ of the input of a Multi Layer Perceptron predictor module. The answer of the MLP predictor will be inhibited whenever a novel sample is detected. Furthermore, it
B Cannas, A Fanni, G Pautasso
exaly   +4 more sources

Improvements in Disruption Prediction at ASDEX Upgrade [PDF]

, 2014
In large-scale Tokamaks disruptions have the potential to create serious damage to the facility. Hence disruptions must be avoided, but, when a disruption is unavoidable minimizing its severity is mandatory. A reliable detection of a disruptive event is required to trigger proper mitigation actions.
SIAS, GIULIANA, Aledda R, Cannas B, FANNI, ALESSANDRA, Murari A, PAU, ALESSANDRO, ASDEX Upgrade Team   +6 more
openaire   +2 more sources

A locked mode indicator for disruption prediction on JET and ASDEX upgrade [PDF]

Fusion Engineering and Design, 2019
The aim of this paper is to present a signal processing algorithm that, applied to the raw Locked Mode signal, allows us to obtain a disruption indicator in principle exploitable on different tokamaks.
G Sias, B Cannas, A Fanni
exaly   +10 more sources

An Efficient Prediction-Based Routing in Disruption-Tolerant Networks

IEEE Transactions on Parallel and Distributed Systems, 2012
Routing is one of the most challenging, open problems in disruption-tolerant networks (DTNs) because of the short-lived wireless connectivity environment. To deal with this issue, researchers have investigated routing based on the prediction of future contacts, taking advantage of nodes' mobility history.
Jie Wu
exaly   +2 more sources