Zobrazeno 1 - 10
of 131
pro vyhledávání: '"Hélder Puga"'
Autor:
Marlene Machado, Miguel F. Galrinho, Cláudia P. Passos, Liliana Espírito Santo, Maria Simona Chiș, Floricuța Ranga, Hélder Puga, Josman Palmeira, Manuel A. Coimbra, M. Beatriz P.P. Oliveira, Helena Ferreira, Rita C. Alves
Publikováno v:
Journal of Functional Foods, Vol 120, Iss , Pp 106378- (2024)
Prebiotic demand is increasing due to growing concerns about human gut health and well-being. Recently, agri-food by-products have been explored as a potential source of prebiotic ingredients. This study analysed the chemical composition of a freeze-
Externí odkaz:
https://doaj.org/article/afe475ddf3e24eb289007ed6836809be
Publikováno v:
Metals, Vol 14, Iss 8, p 885 (2024)
This study investigated the influence of corrosion-induced deterioration of the tensile properties of a Mg-1 wt.% Ca alloy on the performance of a coronary artery stent model fabricated using the alloy wire. Finite element analysis was used to determ
Externí odkaz:
https://doaj.org/article/b767cbf5226e4bbd99b22775de9e2e00
Autor:
Henrique Martins, Hélder Puga
Publikováno v:
Metals, Vol 13, Iss 5, p 908 (2023)
Machinability, along with its associated facets, is a critical parameter that ultimately determines the cost of machining. Its optimization, however, is inherently limited by the current technology. To surmount such limitations, novel alternative mac
Externí odkaz:
https://doaj.org/article/f7175fd9a0494744a186c19e785c406c
Publikováno v:
Materials, Vol 16, Iss 8, p 3152 (2023)
The Mg-Al-Zn-Ca system has demonstrated excellent flame resistance and mechanical properties in the as-cast condition. However, the potential of these alloys to be heat-treated, e.g., by aging, as well as the influence of the initial microstructure o
Externí odkaz:
https://doaj.org/article/ea9f0628b1db496aafb9e712edb28bbb
Publikováno v:
Metals, Vol 13, Iss 2, p 255 (2023)
In this work, the effect of ultrasonic vibration during solidification on the aging kinetics of an AlSi7Mg alloy is investigated. With the ultrasonic equipment coupled to the mold walls, melt treatment was performed by two approaches: (i) fully above
Externí odkaz:
https://doaj.org/article/5e729225361444579d34cecc3c787ab2
Autor:
Andrews Souza, Paulina Capela, Vítor Lopes, Filipe Prior, Hélder Puga, Delfim Soares, José Teixeira
Publikováno v:
Journal of Manufacturing and Materials Processing, Vol 6, Iss 5, p 99 (2022)
The focus of this research is on thermal contact resistance between a mold and its insert, specifically inserts made by additive manufacturing (AM). Using a thermal steady-state system and varying contact pressures (0, 50, 75, and 100 bars), we prese
Externí odkaz:
https://doaj.org/article/5f875f68234c4017a4e9e96f66b7b0f4
Publikováno v:
Metals, Vol 12, Iss 5, p 804 (2022)
An A356 alloy is a classic casting light alloy, which is able to be processed into complex geometrical shapes with tailored static and dynamic mechanical properties. As a promising material to reduce fuel and energy consumption in future vehicle desi
Externí odkaz:
https://doaj.org/article/06b4c830ecee428383a9f09f7271a504
Publikováno v:
Metals, Vol 11, Iss 10, p 1529 (2021)
In this work, a systematic review of the published literature was conducted, following the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses, on the ultrasonic treatment of magnesium-aluminium alloys for grain refin
Externí odkaz:
https://doaj.org/article/15820a2e7c83456180fac7c6b85825ed
Publikováno v:
International Journal of Metalcasting. 17:1034-1048
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a97d5fd480baba27de50bf7762170f2
https://doi.org/10.1007/s40962-022-00829-2
https://doi.org/10.1007/s40962-022-00829-2
Publikováno v:
Metals, Vol 11, Iss 5, p 725 (2021)
Aluminum-based cellular solids are promising lightweight structural materials considering their high specific strength and vibration damping, being potential candidates for future railway vehicles with enhanced riding comfort and low fuel consumption
Externí odkaz:
https://doaj.org/article/02213f6377674716a8aba770fa64f71c