A partial t-spread in Fq is a collection of t-dimensional subspaces with trivial intersection such that each non-zero vector is covered at most once. How many t-dimensional subspaces can be packed into Fq , i.e., what is the maximum cardinality of a partial t-spread? An upper bound, given by Drake and Freeman, survived more than forty years without any improvement. At the end of 2015, the upper...

Coating of a surface by droplet spreading plays an important role in many novas industrial processes, such as plasma spray coating, ink jet printing, nano safeguard coatings and nano self-assembling. Data analysis of nano and micro droplet spreading can be widely used to predict and optimize coating processes. In this article, we want to select the most appropriate statistical distribution for ...

This study addresses the issue of robust watermarking techniques for 3D objects. Taking into account that the literature is quite scarce in this respect, an original oblivious method is advanced. This method is obtained out of extending and generalising the principles we derived for video watermarking. The experimental results, obtained on several types of 3D objects (humanoids, spare parts, et...