5 resultados para Posicionamento. IEEE 802.11. LVWNet. Free-space Path Loss. Wireless.Linux. Testbed. Prototipação
em Universidade do Minho
Resumo:
Dissertação de mestrado integrado em Engenharia Eletrónica Industrial e Computadores
Resumo:
Tese de Doutoramento em Ciências da Literatura - Especialidade em Teoria da Literatura
Resumo:
Tese de Doutoramento em Ciências Jurídicas (área de especialização em Ciências Jurídicas - Públicas)
Connecting free volume with shape memory properties in noncytotoxic gamma-irradiated polycyclooctene
Resumo:
The free volume holes of a shape memory polymer have been analysed considering that the empty space between molecules is necessary for the molecular motion, and the shape memory response is based on polymer segments acting as molecular switches through variable flexibility with temperature or other stimuli. Therefore, thermomechanical analysis (TMA) and positron annihilation lifetime spectroscopy (PALS) have been applied to analyse shape recovery and free volume hole sizes in gamma irradiated polycyclooctene (PCO) samples, as a non-cytotoxic alternative to more conventional PCO crosslinked via peroxide for future applications in medicine. Thus, a first approach relating structure, free volume holes and shape memory properties in gamma irradiated PCO is presented. The results suggest that free volume holes caused by gamma irradiation in PCO samples facilitate the recovery process by improving movement of polymer chains and open t possibilities for the design and control of the macroscopic response.
Resumo:
Dissertação de mestrado em Engenharia Eletrónica Industrial e Computadores (área de especialização em Robótica)