A semantic geo-catalogue implementation for a regional SDI

In this paper we report our work on the implementation of a semantic geocatalogue for the spatial data infrastructure (SDI) of the Trentino region, Italy

On the binary sequences with indistinguishable signature for a given error multeplicity in electronic testing

Демиденко, Сергей; Иванюкович, Александр; Махнист, Леонид; Пьюри, Винченцо. О двоичных последовательностях с неразличимой сигнатурой при заданной кратности ошибок в электронном тестированииDistinct binary seąuences (2 ͫ – 1 bits long) may be compressed by an m-bit signature register into the same signature ualue, when a given error multiplicity is considered. Analytical expressions to compute the number of distinct seąuences collapsed into the same signature are presented, by exploiting the properties of the binary Hamming codę theory and of the binomial coefficients

Deep Traps in Molecular-Beam-Epitaxial GaAs Grown at Low Temperatures

Deep‐level transient spectroscopy has been performed on Si‐doped GaAs layers grown by molecular‐beam epitaxy at substrate temperatures of 400–450 °C. The λ effect is taken into account and overlapping peaks are analyzed numerically. An 0.65 eV electron trap of concentration 2×1016 cm−3 is believed to be related to the AsGa‐associated 0.65 eV Hall‐effect center, and also to the trap EB4 found in electron‐irradiated GaAs