96 research outputs found
Utilização agrícola e compostagem de lamas de origem têxtil
Utilização agrícola e compostagem de lamas de origem têxtil
Development of photocatalytic 3D-Printed cementitious mortars: influence of the curing, spraying time gaps and TiO2 coating rates
This work evaluated the photocatalytic activity of 3D-printed cementitious mortar specimens functionalized with TiO2 nanoparticles to obtain a multifunctional and smart concrete. This research aims to assess the influence of different parameters related to the functionalization process such as adsorption, coating time gaps, and coating rates on the degradation efficiency of the functionalized cementitious specimens. Each specimen was evaluated under the degradation of Rhodamine B (RhB) in an aqueous solution using a sun-light simulation. The obtained results showed a decrease in adsorption (under dark condition) with increasing the sample curing age. The highest photocatalytic efficiency was observed for coated samples aged 7 days. By increasing the coating rates, the photocatalytic efficiency is enhanced. Nonetheless, regardless of the coating rates, all the specimens showed an increase in photocatalytic efficiency for longer time periods of light exposition, i.e., after 8 h of irradiationThis work was partly financed by FCT/MCTES through national funds (PIDDAC) under the R&D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE),
under reference UIDB/04029/2020. The authors acknowledge the support of the DST group
construction company for funding the project Chair dst/IB-S: Smart Systems for Construction.
The first two authors would like to acknowledge the PhD grants SFRH/BD/143636/2019 and
SFRH/BD/137421/2018 provided by the Portuguese Foundation for Science and Technology (FCT).
Additionally, the authors would like to acknowledge FCT for the financing this research work by the
project NanoAir PTDC/FIS-MAC/6606/2020 and the Strategic Fundings UIDB/04650/2020-2023
and UIDB/04029/202
Quantum walks: a comprehensive review
Quantum walks, the quantum mechanical counterpart of classical random walks,
is an advanced tool for building quantum algorithms that has been recently
shown to constitute a universal model of quantum computation. Quantum walks is
now a solid field of research of quantum computation full of exciting open
problems for physicists, computer scientists, mathematicians and engineers.
In this paper we review theoretical advances on the foundations of both
discrete- and continuous-time quantum walks, together with the role that
randomness plays in quantum walks, the connections between the mathematical
models of coined discrete quantum walks and continuous quantum walks, the
quantumness of quantum walks, a summary of papers published on discrete quantum
walks and entanglement as well as a succinct review of experimental proposals
and realizations of discrete-time quantum walks. Furthermore, we have reviewed
several algorithms based on both discrete- and continuous-time quantum walks as
well as a most important result: the computational universality of both
continuous- and discrete- time quantum walks.Comment: Paper accepted for publication in Quantum Information Processing
Journa
Is it possible to simplify environmental monitoring? Approaches with zooplankton in a hydroelectric reservoir
Short-term low-protein diet during pregnancy alters islet area and protein content of phosphatidylinositol 3-kinase pathway in rats
Análise da variabilidade genética de acessos de Psidium spp. (Myrtaceae) avaliados quanto à reação a Meloidogyne enterolobii¹
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