Partant des prédictions de Bogomolny–Schmit pour les ondes planaires aléatoires, dans années récentes relations profondes sont apparues entre lignes niveau champs aléatoires Gaussiens réguliers et la percolation. En théorie percolation, un ingrédient clé l’analyse connectivité globale est famille bornes indépendantes en échelle sur probabilités croisement le régime critique, connues sous nom d’...

This paper investigates the development of weld zone in Resistance Spot Welding (RSW) which focuses on weld nugget and Heat Affected Zone (HAZ). The effects of four factors namely weld current, weld time, electrode force and hold time were studied using a general 2 factorial design augmented by five centre points. The results of the analysis showed that all selected factors except hold time exh...

1. Ornamental carotenoid coloration is commonly based on several different pigments with different nutritional and metabolic constraints. The identification and quantification of carotenoid pigments is therefore crucial to the understanding of signal content and signal evolution. 2. In male widowbirds ( Euplectes spp.), the striking yellow and red carotenoid colours have been measured by reflec...

A (computational) client puzzle scheme enables a client to prove to a server that a certain amount of computing resources (CPU cycles and/or Memory look-ups) has been dedicated to solve a puzzle. Researchers have identified a number of potential applications, such as constructing timed cryptography, fighting junk emails, and protecting critical infrastructure from DoS attacks. In this paper, we...

Spatio-temporal dynamics of excitable media with discrete three-level active centers (ACs) and absorbing boundaries is studied numerically by means of a deterministic three-level model (see S. D. Makovetskiy and D. N. Makovetskii, http://arxiv.org/abs/cond-mat/0410460 ), which is a generalization of the Zykov-Mikhailov model (see Sov. Phys. – Doklady, 1986, Vol.31, No.1, P.51) for the case of t...

Boron-manganese steel 22MnB5 is extensively used in structural automotive components. Knowledge about its microstructural evolution during hot stamping and resistance spot welding (RSW) extremely relevant to guarantee compliance with application requirements. Particularly, corrosion properties are critical the of uncoated sheet steels. However, studies usually simplified top-hat geometries, whi...