521 research outputs found
Procedures of Monte Carlo transport simulation for applications in system engineering
No full textinfo:eu-repo/semantics/publishe
Decrease in the luminescence of single CdSe/ZnS quantum dots - Study on the role of temperature
No full textInternational audienceno abstrac
Prise en compte de l'incertitude dans les modèles fiabilistes de maintenance industrielle. Extension aux Sollicitations variables
No full textRésumé :voir fichier jointDOCSCAPPL - Doctorat en Sciences appliquée
Identifying actional features through semantic priming: Cross-Romance comparison
No full textThis paper reports four priming experiments in Italian and Spanish, whose main goal was to empirically verify the psychological reality of two aspectual features crucially involved in event type classification, resultativity and durativity. The participants performed two semantic decision tasks targeting these features: in the durativity task, they were asked whether the verb referred to a durable situation, and in the resultativity task whether it denoted a situation with a clear outcome. The results obtained prove that both features are involved in online processing of the verb meaning:
achievements and activities (respectively classified as [+resultative, -durative] and [-resultative, +durative]) were processed faster in certain priming contexts. This suggests that resultativity and durativity belong to the mental representation of verbal semantics. The pattern of priming effects obtained in the Romance languages presents some striking similarities (in the resultativity task, only achievements benefited from priming) alongside some intriguing differences, and clearly contrasts with the behaviour of another language tested, Russian, whose aspectual system differs in significant ways. Two hypotheses can be proposed to account for these results, both pointing to some sort of processing advantage for the achievements. The first hypothesis invokes the nature of
the features involved: durativity is continuous and contextually malleable, whereas resultativity is binary and hence more stable. The second hypothesis focuses on the ontology of events, predicting that priming emerges when the target verb is actionally ambiguous. In this respect, transitively used activity verbs should occasionally yield priming, for they may be used as accomplishments. However, transitivity was not systematically controlled in the experiments reported below. Achievements, on the other hand, are inherently ambiguous: they can refer either to the moment at which a
change of state occurs or to the resultant state itself
The Stimulus-Driven Theory of Probabilistic Dynamics for electrical transients in transmission power systems
No full textMonte Carlo estimation of generalized unreliability in probabilistic dynamics - I: Application to a pressurized water reactor pressurizer
No full textProbabilistic dynamics offers a general Markovian framework for a dynamic treatment of reliability. Monte Carlo simulation appears to be a powerful and flexible tool to deal with the high dimensionality of realistic applications. Yet an analog game turns out to be ineffective for two main reasons: Very rare events leading to failures are not sampled enough to obtain a good statistical accuracy, and the equations of the dynamics have to be integrated all along each history, which results in very large computation times. Recent improvements in Monte Carlo simulation applied to probabilistic dynamics allow a much faster and more precise estimation of the unreliability of large systems, and they are illustrated on a pressurized water reactor pressurizer.SCOPUS: ar.jinfo:eu-repo/semantics/publishe
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