A statically balanced SCARA-like industrial manipulator with high energetic efficiency

The purpose of the work is the improvement of the energetic efficiency of automated lines assisted by four-degree-of-freedom serial robots with three translations and one rotation about a vertical axis (Schoenflies motion).     

On a variant of Giuga numbers

In this paper, we characterize the odd positive integers n satisfying the congruence∑n -1 j=1 j n-1/2 ≡ 0 (mod n). We show that the set of such positive integers has an asymptotic density which turns out to be slightly larger than 3/8.     

A new model of Hopfield network with fractional-order neurons for parameter estimation

Nonlinear Dynamics - In this paper, a neural network-based event-triggered fault detection scheme is addressed within the finite-frequency domain for a class of nonlinear Markov jump system....     

Hot press transferring of graphene nanoplatelets on polyurethane block copolymers film for electroactive shape memory devices

We report a transferring method of graphene nanoplatelets (GNPs) on polyurethane (PU) block copolymers film. We polymerized PU block copolymer films, and then, a GNP layer, deposited on glossy paper by drop casting, was transferred by hot press from the glossy surface to the synthetized PU substrate. Nanoindentation test showed that GNP coated PU substrate exhibits improved mechanical properties with respect to the neat PU film. When an electric bias was applied to the GNP coating, the heat generated by Joule effect was transferred to the PU substrate showing an electroactive shape recovery effect. © 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2014 , 52, 1100–1106     

Study of Cu,Cu-Ni and Rh-modified Cu porous layers as electrode materials for the electroanalysis of nitrate and nitrite ions

Journal of Solid State Electrochemistry - Three porous materials (Cu, a Cu-Ni alloy with 70 at.% Cu and Rh-modified Cu) have been tested as electrodes for the electroanalysis of nitrate...     

Spectral response data for development of cool coloured tile coverings

Most ancient or traditional buildings in Italy show steep-slope roofs covered by red clay tiles. As the rooms immediately below the roof are often inhabited in historical or densely urbanized centres, the combination of low solar reflectance of tile coverings and low thermal inertia of either wooden roof structures or sub-tile insulation panels makes summer overheating a major problem. The problem can be mitigated by using tiles coated with cool colours, that is colours with the same spectral response of clay tiles in the visible, but highly reflecting in the near infrared range, which includes more than half of solar radiation. Cool colours can yield the same visible aspect of common building surfaces, but higher solar reflectance.Studies aimed at developing cool colour tile coverings for traditional Italian buildings have been started. A few coating solutions with the typical red terracotta colour have been produced and tested in the laboratory, using easily available materials. The spectral response and the solar reflectance have been measured and compared with that of standard tiles.