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Roughness, defined as unevenness of material surfaces, plays an important role in determining how engineering components or natural objects interact with other bodies and their environment. The emergence of fractal roughness on natural and engineered surfa ...
Coronavirus. Covid-19. Pandemic. A urgent topic now both in the public media all around the world and in our daily conversations. Infected or not, it still contaminated our lives. It changed what we believed as „normal”. It divided our existence into „Befo ...
We construct a new family of lattice packings for superballs in three dimensions (unit balls for the l(3)(p) norm) with p epsilon (1, 1.58]. We conjecture that the family also exists for p epsilon (1.58, log(2) 3 = 1.5849625 ...]. Like in the densest latti ...
WALTER DE GRUYTER GMBH2020
The purpose of the paper is to discuss "The Linz Café," a building that ceased to exist in 1980. This project was conceived and constructed by Christopher Alexander for the summer exposition "Forum Design" in Linz, Austria. Despite its short-lived existenc ...
2024
Fully localised three-dimensional solitary waves are steady water waves which are evanescent in every horizontal direction. Existence theories for fully localised three-dimensional solitary waves on water of finite depth have recently been published, and i ...
In the Bay Area of San Francisco, the earthquake contours are not easy to define: seismology is still a relatively recent science, and controversies around methods to evaluate the earthquake risk are constant. In this context, the invitation to think about ...
The Frenkel-Kontorova model for dislocation dynamics from 1938 is given by a chain of atoms, where neighbouring atoms interact through a linear spring and are exposed to a smooth periodic on-site potential. A dislocation moving with constant speed correspo ...
Face à l’incertitude quant aux futures conditions d’existence de l’humanité, de nouvelles manières d’appréhender l’avenir de nos sociétés semblent nécessaires. En mettant de côté les perspectives ouvertes par les utopies heureuses, cet article fait le pari ...
Mêlant espaces naturels, cultivés, habités et industriels, le paysage de Romanel-Vernand-Cheseaux est très diversifié. Ce site est appelé à connaître une future densification, exigée, dans la région lausannoise, afin de répondre à l’augmentation à venir de ...
The feedback sum-rate capacity is established for the symmetric three-user Gaussian multiple-access channel (GMAC). The main contribution is a converse bound that combines the dependence-balance argument of Hekstra and Willems (1989) with a variant of the ...
