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Université de Neuchâtel

Conditioning groundwater flow parameters with iterative ensemble smoothers : analysis and approaches in the continuous and the discrete cases

Lam, Dan-Thuy ; Renard, Philippe (Dir.) ; Kerrou, Jaouher (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2019.

Data assimilation (DA) consists in combining observations and predictions of a numerical model to produce an optimal estimate of the evolving state of a system. Over the last decade, DA methods based on the Ensemble Kalman Filter (EnKF) have been particularly explored in various geoscience fields for inverse modelling. Although this type of ensemble methods can handle high-dimensional systems,...

Consortium of Swiss Academic Libraries

Compression for trace zero points on twisted Edwards curves

Bianco, Giulia ; Gorla, Elisa

In: Journal of Mathematical Cryptology, 2016, vol. 10, no. 1, p. 15-34

Université de Neuchâtel

A geostatistical approach to the simulation of stacked channels

Rongier, G ; Collon, P ; Renard, Philippe

In: Marine and Petroleum Geology, 2017, vol. 82, p. 318-335

Turbiditic channels evolve continuously in relation to erosion-deposition events. They are often gathered into complexes and display various stacking patterns. These patterns have a direct impact on the connectivity of sand-rich deposits. Being able to reproduce them in stochastic simulations is thus of significant importance. We propose a geometrical and descriptive approach to stochastically...

Université de Fribourg

Two pairs of drosophila central brain neurons mediate larval navigational strategies based on temporal light information processing

Humberg, Tim-Henning ; Sprecher, Simon G.

In: Frontiers in Behavioral Neuroscience, 2018, vol. 12, p. -

Some animals are attracted by sun light, others are highly repulsed by it. Especially for slowly moving animals, such as Drosophila larvae, direct sunlight may be perceived as noxious stimulus as it increases the risk of desiccation, DNA-damaging by UV-light and exposure to predators. For several reasons, model organisms like Drosophila larvae are well-suited for investigating how light cues...