740 research outputs found
De la place de certains documents d'urbanisme dans l'invention des paysages
No full textAubry Pascal. De la place de certains documents d'urbanisme dans l'invention des paysages. In: Publics et Musées, n°10, 1996. pp. 51-62
Aubry transition with small distortions
No full textInternational audienceWe show that when the Aubry transition occurs in incommensurately distorted structures, the amplitude of the distortions is not necessarily large as suggested by the standard Frenkel-Kontorova mechanical model. By modifying the shape of the potential in such a way that the mechanical force is locally stronger (i.e., increasing the nonlinearities), the transition may occur at a small amplitude of the potential with small distortions. A phason gap then opens, while the phonon spectrum resembles a standard undistorted spectrum at higher energies. This may explain the existence of pinned phases with very small distortions as experimentally observed in charge-density waves
Du Directoire au Consulat. Tome 3. Brumaire dans l'histoire du lien politique et de l'État-Nation, Jean-Pierre Jessenne éd., avec la collaboration de Martine Aubry, Jacques Bernet, Pascal Dupuy, Bernard Gainot, Christine Le Bozec, Hervé Leuwers. Du Directoire au Consulat. Tome 4. L'institution préfectorale et les collectivités territoriales, Pascal Dupuy, Jean-Pierre Jessenne, Christine Le Bozec
No full textBrunel Françoise. Du Directoire au Consulat. Tome 3. Brumaire dans l'histoire du lien politique et de l'État-Nation, Jean-Pierre Jessenne éd., avec la collaboration de Martine Aubry, Jacques Bernet, Pascal Dupuy, Bernard Gainot, Christine Le Bozec, Hervé Leuwers. Du Directoire au Consulat. Tome 4. L'institution préfectorale et les collectivités territoriales, Pascal Dupuy, Jean-Pierre Jessenne, Christine Le Bozec. In: Annales historiques de la Révolution française, n°333, 2003. pp. 194-199
Denjoy's anachronistic topological viewpoint on Aubry transition
No full textInternational audienceThe Aubry transition is a phase transition between two types of incommensurate states, originally described as a transition by ``breaking of analyticity''. Here we present Denjoy's (anachronistic) viewpoint, who almost hundred years ago described certain mathematical properties of circle homeomorphisms with irrational rotation numbers. The connection between the two lies in the existence of a change of variables from the incommensurate ground state variables to new simple phase variables that rotate by a constant irrational angle. This confers a cyclic order, an essential property of models with the Aubry transition. Denjoy's description indicates that there are two types of cyclic order, distinguished by the regular or singular nature of the change of variables or, in mathematical terms, by the distinction between topological conjugacy versus semiconjugacy. This allows rephrasing the breaking of analyticity as a breaking of topological conjugacy. We illustrate this description with numerical calculations on the Frenkel-Kontorova model
Multivariate Polarimetric Bistatic Clutter Statistical Analysis
No full textThis paper deals with the analysis of simultaneously collected co- and cross-polarized bistatic sea-clutter returns with special emphasis on their representation as a Spherically Invari-ant Random Process (SIRP). The study is conducted by using appropriate testing procedures involving the complex envelope of the measured data that provide both first- and higher-order compatibility conditions. The results highlight that the SIRP model is a good candidate for the representation of bistatic coherent clutter, and usually the coherence time of the SIRP texture is longer than that in the monostatic case.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Microwave Sensing, Signals & System
Compatibility Assessment of Multistatic/Polarimetric Clutter Data with the SIRP Model
No full textThis article deals with the statistical inference of simultaneously recorded co- and cross-polarized bistatic coherent sea-clutter returns at S-band. This study is conducted employing appropriate statistical learning tools, involving the complex envelope of data, to assess the compliance of the available measurements with the spherically invariant random process (SIRP) representation, as well as to analyze possible texture correlations among the diverse polarimetric channels. Moreover, the spatial heterogeneity of the sea-clutter data is studied. The results highlight that the SIRP model is a good candidate for the representation of bistatic coherent clutter and usually the coherence time of the SIRP texture at the bistatic nodes is longer than that in the monostatic sensing. Notably, at bistatic angles in order of 60°, the quadrature components of the cross-polarized bistatic measurements substantially exhibit a Gaussian behavior. These achievements further shed light on the bistatic sea-clutter diversity from the geometric and polarimetric point of view.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Microwave Sensing, Signals & System
Density of potential foraging structures and pileated woodpecker foraging activity on Sun Pass State Forest: update to final report
No full textprincipal investigators, Catherine M. Raley (Wildlife Biologist); Keith B. Aubry, Ph.D. (Research Wildlife Biologist): USDA Forest Service, Pacific Northwest Research Station, 3625 93rd Ave. SW, Olympia, WA 98512.Covers OCLC #1246554250, OCLC #1246554252, OCLC #1247383729.Title from PDF caption (viewed on April 19, 2021)."Collection Agreement No. PNW 03-CO-11261992-114."This archived document is maintained by the State Library of Oregon. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references.Mode of access: Internet from the State Library of Oregon U.S. Government Publications Collection.Text in English
Translating Part of France's Legal Heritage: Aubry and Rau on the Patrimoine
No full textReading the pages of the 19th century legal treatise written by Charles Aubry (1803-1882) and Frédéric-Charles Rau (1803-1877) on the patrimony has been, for generations, a rite of passage in French legal education. The theory of the patrimony has aptly been described as fundamental for French private law and the account given by Aubry and Rau, however distant it may be from the law in force, should be read by anyone who seeks to understand the French legal mind. Drawing on the English-language civilian vocabulary that is part of Quebec legal culture, the author offers a translation of this text by Aubry and Rau with some commentary on its canonical status in French legal letters. Even in its translated form, it offers a means for the English-speaking reader to encounter a tradition of abstract rationality in legal scholarship that is part of France's legal "heritage" (itself a French patrimoine but in another sense).La lecture des extraits portant sur le patrimoine du traité écrit au XIXe siècle par Charles Aubry (1803-1882) et Frédéric-Charles Rau (1803-1877) constitue, depuis des générations, un rite de passage dans la formation des juristes en France. La théorie du patrimoine a très justement été décrite comme fondamentale pour le droit privé français et le récit offert par Aubry et Rau doit être lu, malgré son écart avec le droit en vigueur, par toute personne qui cherche à comprendre l’imaginaire du juriste français. S’inspirant du lexique civiliste de langue anglaise qui fait partie de la culture juridique québécoise, l’auteur présente une traduction de ce texte d’Aubry et Rau assortie de quelques commentaires sur son statut canonique dans la juridique française. Même traduit, ce texte offre au lecteur de langue anglaise une façon de prendre contact avec une tradition de rationalité abstraite dans la doctrine juridique qui participe au « patrimoine » (au sens, ici de heritage en anglais) de droit français
Deep exemplar 2d-3d detection by adapting from real to rendered views
No full textInternational audienceThis paper presents an end-to-end convolutional neural network (CNN) for 2D-3D exemplar detection. We demonstrate that the ability to adapt the features of natural images to better align with those of CAD rendered views is critical to the success of our technique. We show that the adaptation can be learned by compositing rendered views of textured object models on natural images. Our approach can be naturally incorporated into a CNN detection pipeline and extends the accuracy and speed benefits from recent advances in deep learning to 2D-3D exemplar detection. We applied our method to two tasks: instance detection, where we evaluated on the IKEA dataset [36], and object category detection, where we out-perform Aubry et al. [3] for " chair " detection on a subset of the Pascal VOC dataset
Multi-Spectral Reflection Matrix Processing
No full text<p>This repository contains the code for the article entitled "Multi-Spectral Reflection Matrix for Ultra-Fast 3D Label-Free Microscopy"</p>
<p>Authors: <a href="https://arxiv.org/search/physics?searchtype=author&query=Balondrade,+P">Paul Balondrade</a>, <a href="https://arxiv.org/search/physics?searchtype=author&query=Barolle,+V">Victor Barolle</a>, <a href="https://arxiv.org/search/physics?searchtype=author&query=Guigui,+N">Nicolas Guigui</a>, <a href="https://arxiv.org/search/physics?searchtype=author&query=Auriant,+E">Emeric Auriant</a>, <a href="https://arxiv.org/search/physics?searchtype=author&query=Rougier,+N">Nathan Rougier</a>, <a href="https://arxiv.org/search/physics?searchtype=author&query=Boccara,+C">Claude Boccara</a>, <a href="https://arxiv.org/search/physics?searchtype=author&query=Fink,+M">Mathias Fink</a>, <a href="https://arxiv.org/search/physics?searchtype=author&query=Aubry,+A">Alexandre Aubry</a></p>
<p>Year: 2023</p>
<p>Preprint arXiv:2309.10951</p>
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