Constituição do Medo e Fim de 218.660 Empregos

Se uns têm medo da Constituição lusa actual, uma das mais humanistas do mundo, outros querem uma “Constituição do Medo”. Dizíamos no último artigo, um dia antes de Nª Srª da Assunção (ainda é feriado!), que o Art. 1º da Constituição, “República Portuguesa”, diz: “Portugal é uma República soberana, baseada na dignidade da pessoa humana e na vontade popular e empenhada na construção de uma sociedade livre, justa e solidária”. § If some are afraid of the current Portuguese Constitution, one of the humanists of the world, others want a 'Constitution of Fear. "We said in the last article, the day before Our Lady of the Assumption (it's still holiday!), That Article 1 of the Constitution, "Portugal", he says. "Portugal is a sovereign Republic, based on human dignity and popular will and committed to building a free society, justice and solidarity ".

Mechanical, electrical and electro-mechanical properties of thermoplastic elastomer styrene–butadiene–styrene/multiwal carbon nanotubes composites

Composites of styrene–butadiene–styrene (SBS) block copolymer with multiwall carbon nanotubes were processed by solution casting to investigate the influence of filler content, the different ratios of styrene/butadiene in the copolymer and the architecture of the SBS matrix on the electrical, mechanical and electro-mechanical properties of the composites. It was found that filler content and elastomer matrix architecture influence the percolation threshold and consequently the overall composite electrical conductivity. Themechanical properties aremainly affected by the styrene and filler content. Hopping between nearest fillers is proposed as the main mechanism for the composite conduction. The variation of the electrical resistivity is linear with the deformation. This fact, together with the gauge factor values in the range of 2–18, results in appropriate composites to be used as (large) deformation sensors.

Mechanical, electrical and electro-mechanical properties of thermoplastic elastomer styrene–butadiene–styrene/multiwall carbon nanotubes composites

Composites of styrene–butadiene–styrene (SBS) block copolymer with multiwall carbon nanotubes were processed by solution casting to investigate the influence of filler content, the different ratios of styrene/butadiene in the copolymer and the architecture of the SBS matrix on the electrical, mechanical and electro-mechanical properties of the composites. It was found that filler content and elastomer matrix architecture influence the percolation threshold and consequently the overall composite electrical conductivity. The mechanical properties are mainly affected by the styrene and filler content. Hopping between nearest fillers is proposed as the main mechanism for the composite conduction. The variation of the electrical resistivity is linear with the deformation. This fact, together with the gauge factor values in the range of 2–18, results in appropriate composites to be used as (large) deformation sensors.