Fused yttrium-alumoborate glasses doped with ytterbium, silicon, chromium, and sodium were synthesized. The influence of the matrix on "spectroscopic behavior" chromium ions efficiency their sensitization Yb3+ luminescence was established by spectral-luminescence EPR-studies. It found that (1) in alkali-free is mainly oxidation degree Cr(III) an appreciable admixture Cr(IV) Cr(V), (2) partial r...

The Na superionic conductor (NASICON) Na3V2(PO4)3 is an important positive electrode material for Na-ion batteries. Here, we investigate the mechanisms of phase transition in NaxV2(PO4)3 (1 ? x 4) upon nonequilibrium battery cycling. Unlike widely believed two-phase reaction a Na3V2(PO4)3–Na1V2(PO4)3 system, determine, first time, structure recently reported intermediate Na2V2(PO4)3 using opera...

In this work, bulk Czochralski-grown single crystals of 10 mol. % Al2O3 alloyed B-Ga2O3 - monoclinic 10% AGO or B-(Al0.1Ga0.9)2O3 are obtained, which show +0.20 eV increase in the bandgap compared with unintentionally doped B-Ga2O3. Further, growths 33% B-(Al0.33Ga0.67)2O3 and 50% B-(Al0.5Ga0.5)2O3 B-AlGaO3 produce polycrystalline single-phase material (B-AGO). All three compositions investigat...

Oxygen vacancy-rich high-entropy (Cr 0.2 Mn Fe Co Ni ) 3 O 4 oxide nanofibres with granular structure are good candidates for the preparation of electrocatalytic inks.

Recently, fractal and subband coding were combined to achieve good picture quality at very low bit rates, and the technique was named predictive pyramid coding (PPC) [5]. In this paper, we improve PPC performance by utilizing the inter-subband correlation between different groups of subbands. As a result, we can reduce the bit rate by 0.0110.043 bpp without degrading the coded picture quality,...

Two bookmakers compete in Bertrand fashion while setting odds on the outcomes of a sporting contest where an influential punter (or betting syndicate) may bribe some player(s) to fix the contest. Zero profit and bribe prevention may not always hold together. When the influential punter is quite powerful, the bookies may coordinate on prices and earn positive profits for fear of letting the ‘lem...

Vaccination management in children and adults with mastocytosis G. Zanoni , R. Zanotti, D. Schena, C. Sabbadini, R. Opri and P. Bonadonna Immunology Unit, Azienda Ospedaliera Universitaria Integrata, Multidisciplinary Outpatient Clinics for Mastocytosis, Azienda Ospedaliera Universitaria Integrata, Haematology Unit, Azienda Ospedaliera Universitaria Integrata, Dermatology Unit, Azienda Ospedali...