Shallow water equations for large bathymetry variations

In this study, we propose an improved version of the nonlinear shallow water (or Saint-Venant) equations. This new model is designed to take into account the effects resulting from the large spacial and/or temporal variations of the seabed. The model is derived from a variational principle by choosing the appropriate shallow water ansatz and imposing suitable constraints. Thus, the derivation procedure does not explicitly involve any small parameter.Comment: 7 pages. Other author's papers can be downloaded at http://www.lama.univ-savoie.fr/~dutykh

Modified Shallow Water Equations for significantly varying seabeds

In the present study, we propose a modified version of the Nonlinear Shallow Water Equations (Saint-Venant or NSWE) for irrotational surface waves in the case when the bottom undergoes some significant variations in space and time. The model is derived from a variational principle by choosing an appropriate shallow water ansatz and imposing some constraints. Our derivation procedure does not explicitly involve any small parameter and is straightforward. The novel system is a non-dispersive non-hydrostatic extension of the classical Saint-Venant equations. A key feature of the new model is that, like the classical NSWE, it is hyperbolic and thus similar numerical methods can be used. We also propose a finite volume discretisation of the obtained hyperbolic system. Several test-cases are presented to highlight the added value of the new model. Some implications to tsunami wave modelling are also discussed.Comment: 34 pages, 18 figures, 65 references. Other author's papers can be downloaded at http://www.denys-dutykh.com

Exploring the neural correlates of dream phenomenology and altered states of consciousness during sleep

Do people routinely pre-activate the meaning and even the phonological form of upcoming words? The most acclaimed evidence for phonological prediction comes from a 2005 Nature Neuroscience publication by DeLong, Urbach and Kutas, who observed a graded modulation of electrical brain potentials (N400) to nouns and preceding articles by the probability that people use a word to continue the sentence fragment (‘cloze’). In our direct replication study spanning 9 laboratories (N=334), pre-registered replication-analyses and exploratory Bayes factor analyses successfully replicated the noun-results but, crucially, not the article-results. Pre-registered single-trial analyses also yielded a statistically significant effect for the nouns but not the articles. Exploratory Bayesian single-trial analyses showed that the article-effect may be non-zero but is likely far smaller than originally reported and too small to observe without very large sample sizes. Our results do not support the view that readers routinely pre-activate the phonological form of predictable words

Révolutions de Constantinople en 1807 et 1808. Précédées d' observations générales sur l' état actuel de l' empire ottoman.

Preface: Juchereau de Saint Denys, A.deAppendix.Dedication:Pagination: PP24+271P, PP4+318P+1PPVolumes: 2Text Genre:Pros

Le second fascicule du tome II de l'Ethnographie des peuples étrangers à la Chine

Hervey de Saint-Denys Léon d'. Le second fascicule du tome II de l'Ethnographie des peuples étrangers à la Chine. In: Comptes rendus des séances de l'Académie des Inscriptions et Belles-Lettres, 23ᵉ année, N. 1, 1879. pp. 16-19

Sur le pays connu des anciens Chinois sous le nom de Fou-sang, et de quelques documents inédits pouvant servir à l'identifier

Hervey de Saint-Denys Léon d'. Sur le pays connu des anciens Chinois sous le nom de Fou-sang, et de quelques documents inédits pouvant servir à l'identifier. In: Comptes rendus des séances de l'Académie des Inscriptions et Belles-Lettres, 19ᵉ année, N. 4, 1875. pp. 319-335

Rapport de la Commission du prix de numismatique

Hervey de Saint-Denys Léon d'. Rapport de la Commission du prix de numismatique. In: Comptes rendus des séances de l'Académie des Inscriptions et Belles-Lettres, 27ᵉ année, N. 2, 1883. pp. 177-178

Discours d'ouverture du Président, séance publique annuelle

Hervey de Saint-Denys Léon d'. Discours d'ouverture du Président, séance publique annuelle. In: Comptes rendus des séances de l'Académie des Inscriptions et Belles-Lettres, 32ᵉ année, N. 6, 1888. pp. 529-544

Sur une notice de M. August Strindberg concernant les relations de la Suède avec la Chine et les pays tartares, depuis le milieu du XVIIe siècle jusqu'à nos jours

Hervey de Saint-Denys Léon d'. Sur une notice de M. August Strindberg concernant les relations de la Suède avec la Chine et les pays tartares, depuis le milieu du XVIIe siècle jusqu'à nos jours. In: Comptes rendus des séances de l'Académie des Inscriptions et Belles-Lettres, 23ᵉ année, N. 2, 1879. pp. 137-140