Search results for "Oboe"
showing 6 items of 6 documents
The influence of the nature of the surface oxide on the adhesive fracture energy of aluminium-bonded joints as measured by T-peel tests
2008
Abstract Modification of aluminium alloy substrates microstructure and morphology by depositing new oxide layers on top of the metal surface has been investigated, with the aim of improving adhesion. The effect of treating the metal with boiling water or immersing it in a cerate bath has been studied by means of electron microscopy, contact angle measurements and peeling tests. The formation of pseudoboehmite layers or cerium conversion coatings both led to an increase in joint's adhesive fracture energy and more durable adhesive bonds with respect to joints obtained with “mechanically grinded only” substrates. Differences in the performance of the bonded joints has been discussed in terms …
The Relevance of Kneading and Extrusion Parameters in the Manufacture of Active Porous Aluminas from Pseudoboehmites
1987
In order to study the effect-on crushing strength, attrition resistance, specific pore volume, and pore volume distribution of extrudates-of kneading and extrusion parameters in the manufacture of active porous aluminas, a commercial pseudoboehmite (Pural SB from Condea Chemie, Brunsbuttel, FRG) was employed. A minimum kneading torque was required to prepare an extrudable paste, predetermined by extrusion conditions. The torque had an upper limit with respect to certain extrudate properties. The amount of water and the concentration of nitric acid as binder solutions were found to have a decisive bearing on the mechanical properties and the distribution of the pore volume. Crushing strength…
Pasculli, Antonino
2014
Voce biografica dedicata all'oboista e compositore Antonino Pasculli (1842-1924), uno dei maggiori virtuosi della sua epoca, didatta e direttore della Banda Municipale di Palermo.
Robots socials. Un punt de trobada entre ciència i ficció
2014
Els robots industrials i els androides de la ciència-ficció, tan diferents fins ara, comencen a confluir gràcies al ràpid desenvolupament de la robòtica social. Atesa la creixent necessitat de mà d’obra en el sector assistencial i de serveis, s’estan dissenyant robots que puguin interaccionar amb les persones, ja sigui atenent a discapacitats i gent gran, fent de recepcionistes o dependents en centres comercials, i àdhuc actuant de mestres de reforç o mainaderes. En aquest context, proliferen les iniciatives per facilitar la inspiració mútua entre tecnociència i humanitats. Qüestions ètiques com la influència de les mainaderes robòtiques sobre el psiquisme infantil, abans tractades en obres…
Social robots: A meeting point between science and fiction
2015
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