2 documents found, page 1 of 1
The robot eyes don't have it. The presence of eyes on collaborative robots yiel...
Pilacinski, Artur; Pinto, Ana; Oliveira, Soraia; Araújo, Eduardo; Carvalho, Carla; Silva, Paula Alexandra; Matias, Ricardo Silva; Menezes, PauloEye gaze is a prominent feature of human social lives, but little is known on whether fitting eyes on machines makes humans trust them more. In this study we compared subjective and objective markers of human trust when collaborating with eyed and non-eyed robots of the same type. We used virtual reality scenes in which we manipulated distance and the presence of eyes on a robot's display during simple collabor...
Xylan and xylan derivatives-Their performance in bio-based films and effect of ...
Sousa, Sonia; Ramos, Ana; Evtuguin, Dmitry V.; Gamelas, Jose A. F.In this work, the successful derivatization of a beechwood xylan (BX) by carboxymethylation and hydroxypropylation was achieved aimed to produce bio-based films. Carboxymethyl xylan (CMX) and hydroxypropyl xylan (HPX) with a substitution degree of 0.3 and 1.1, respectively, as determined by H-1 NMR, were synthesised. The xylan's characterization by thermogravimetric analysis showed that HPX is thermally more st...