4 documents found, page 1 of 1
Experimental Performance Analysis of a Hybrid Wave Energy Harvesting System Com...
Daniel Clemente; Cátia Rodrigues; Ricardo Esteves; José Correia; pereira, a. m.; ventura, j.; Paulo Rosa Santos; Francisco Taveira Pinto; Paulo MartinsThis paper discusses a disruptive approach to wave energy conversion, based on a hybrid solution: the E-Motions wave energy converter with integrated triboelectric nanogenerators. To demonstrate it, a physical modelling study was carried out with nine E-Motions sub-variants, which were based on three original hull designs (half-cylinder (HC), half-sphere (HS) and trapezoidal prism (TP)). A unidirectional latera...
Flexible Composite Films Made of EMAA(-)Na(+) Ionomer: Evaluation of the Influe...
Tita, SPS; Magalhaes, FD; Paiva, D; Bertochi, MAZ; Teixeira, GF; Pires, AL; pereira, a. m.; Tarpani, JRStudies that aim to produce flexible films of composite materials based on ionomers-PZT, and volume fractions lower than 10% PZT, in order to monitor damage in aeronautical structures are seldom investigated. The growing emphasis on the use of polymers capable of self-healing after damage or activation by heating has motivated the application of self-healing ionomers as polymeric matrices in composites with pie...
Precise control of the filling stages in branched nanopores
sousa, c. t.; apolinario, a.; leitao, d. c.; pereira, a. m.; ventura, j.; araujo, j. p.The filling of hierarchical branched porous anodic alumina (PAA) templates with magnetic and metallic nanowires using pulsed electrodeposition is here addressed in detail. We show that the electrodeposition potential (and current) reveals clear anomalies when each generation of branched pores created by steady-state or non-steady-state anodisation is completely filled, thus signalising clearly the growth stages...
Insights into the role of magnetoelastic anisotropy in the magnetization reorie...
leitao, d. c.; ventura, j.; sousa, c. t.; pereira, a. m.; sousa, j. b.; vazquez, m.; araujo, j. p.Understanding the physical properties of magnetic nanowires (NWs) is of crucial importance due to their potential technological applications. In this paper we report a detailed study on the temperature dependence of the magnetic [M(T)] and magnetotransport [MR(T)] properties of Ni and NiFe NWs grown on anodic aluminum oxide templates. While the behavior of the NiFe NWs reflected the presence of a strong shape a...