Several hundreds of compact extragalactic radiosources (mainly quasars, but also BL Lac and galaxies) are monitored in a series of permanent VLBI geodetic and astrometric programs that were initiated in the late 1970’s in support to the solar system exploration, for studying the Earth’s rotation and crustal deformations, and for creating the celestial reference frame later recommended by the IA...

In a projective plane Πq (not necessarily Desarguesian) of order q, a point subset S is saturating (or dense) if any point of Πq \ S is collinear with two points in S. Modifying an approach of [31], we proved the following upper bound on the smallest size s(2, q) of a saturating set in Πq: s(2, q) ≤ √

We report the liquid-phase synthesis of sulfide solid electrolytes from Li2S and P2S5 using anisole at 200–300 °C under microwave irradiation, in which ?-Li3PS4 Li7P3S11 were directly precipitated 30 min.

For any ordered set P, the join dense completions of P form a complete lattice K(P) with least element O(P), the lattice of order ideals of P, and greatest element M(P), the Dedekind-MacNeille completion of P. The latticeK(P) is isomorphic to an ideal of the lattice of all closure operators on the lattice O(P). Thus it inherits some local structural properties which hold in the lattice of closu...

Spectrum above 90 GHz is a promising investigation domain to offer future wireless networks with performance beyond IMT 2020 such as 100+ Gbit/s data rate or sub-ms latency. In particular, the huge available bandwidth can serve backhaul transport network in perspective of ultra-dense deployments, and massive front-haul streams. This paper investigates feasibility characteristics in-street sub-T...