Applications of impedance spectroscopy in thermoelectricity

t is widely used in a lot of different fields (solar cells, fuel cells, corrosion, supercapacitors, batteries, etc.). • Powerful and very reliable equipment are available in the market. • It allows the separation of the physical processes occurring in a device

Monoid rings that are firs

It is well-known that the monoid ring of the free product of a free group and a free monoid over a skew field is a fir. We give a proof of this fact that is more direct than the proof in the literature

Laser surface texturing of a WC-CoNi cemented carbide grade: surface topography design for honing application

Abrasive effectiveness of composite-like honing stones is related to the intrinsic surface topography resulting from the cubic boron nitride (CBN) grains protruding out of the metallic matrix. Within this framework, Laser Surface Texturing (LST) is implemented for replicating topographic features of a honing stone in a WC-base cemented carbide grade, commonly employed for making tools. In doing so, regular arrays of hexagonal pyramids (similar to CBN grains) are sculpted by a laser micromachining system. Micrometric precision is attained and surface integrity does not get affected by such surface modification. Finally, potential of laser-patterned cemented carbide tools, as alternative to conventional honing stones, is supported by successful material removal and enhanced surface smoothness of a steel workpiece in the abrasive testing.Peer ReviewedPostprint (author's final draft

Carles Salvador, l'autoritat gramatical

Carles Salvador had strong nationalistic convictions and was very active in promoting the Catalan language in several areas, specifically in developing treatises on spelling, grammar and lexicography. His work would help consolidate the standardization of Catalan in the Valencian Country and would make him an unquestionable authority on Catalan grammar

Una experiència inoblidable a Hondures

Abstract not availabl

The ceramic sector digitalization

Treball Final de Grau en Economia. Codi: EC1049. Curs acadèmic: 2016/2017.The ceramic industry is the most important economic sector in the province of Castellón, and the third sector in Spain. The economic crisis, which began in 2007, had a major impact and repercussions on this sector than in others. Its high geographical concentration and the support of important and official institutions, led the Spanish ceramic sector to the top of the industrial innovation. As a result of the investments in new technologies, a Spanish company managed to patent a revolutionary method of digital printing. This dissertation studies 20 Spanish companies by means of an econometric model, how the digitization of ceramic printing, allowed to regenerate the Spanish ceramic sector between the years 2007 and 2015