Zobrazeno 1 - 10
of 83
pro vyhledávání: '"F C Sousa"'
Publikováno v:
Acta Médica Portuguesa, Vol 23, Iss 2 (2010)
Following more than a century of cocaine hydrochloride extraction from Erythroxylon coca, this drug remains representing a serious social and public health problema around the world. This paper intends to provide a review about the cocaine theme, foc
Externí odkaz:
https://doaj.org/article/e8b618d1bad340c2b6a246678e6030c7
Publikováno v:
Acta Médica Portuguesa, Vol 5, Iss 8 (1992)
The results of the first 9 patients with proctocolectomy and ileal pouch operated on between 1983 and 1990 were analysed. This procedure was carried out in 8 patients with adenomatous polyposis. Three of these patients had an associated rectal cancer
Externí odkaz:
https://doaj.org/article/e3c54d32360c4a3aa4a60b3d090c13ca
Autor:
Francisco J. G. Silva, Rui P. Martinho, Luís L. Magalhães, Filipe Fernandes, Rita C. M. Sales-Contini, Luís M. Durão, Rafaela C. B. Casais, Vitor F. C. Sousa
Publikováno v:
Journal of Manufacturing and Materials Processing, Vol 8, Iss 3, p 115 (2024)
Strategies for obtaining deep slots in soft materials can vary significantly. Conventionally, the tool travels along the slot, removing material mainly with the side cutting edges. However, a “plunge milling” strategy is also possible, performing
Externí odkaz:
https://doaj.org/article/087b795886524704b498b19277c4df49
Publikováno v:
Metals, Vol 13, Iss 6, p 1036 (2023)
Although additive manufacturing is gaining prominence in the market, many applications require very high levels of precision, which are currently not attainable by additive manufacturing [...]
Externí odkaz:
https://doaj.org/article/2a17d6bb4ac34b16862bf0762f3bd41b
Autor:
Francisco Matos, Tiago E. F. Silva, Vitor F. C. Sousa, Francisco Marques, Daniel Figueiredo, Francisco J. G. Silva, Abílio M. P. de Jesus
Publikováno v:
Metals, Vol 13, Iss 5, p 934 (2023)
Inconel 718 is a highly valued material in the aerospace and nuclear industries due to the fact of its exceptional properties. However, the processing of this material is quite difficult, especially through machining processes. Machining this materia
Externí odkaz:
https://doaj.org/article/133eda6826824378b8d59ab33405cc1a
Autor:
Vitor F. C. Sousa, Filipe Fernandes, Francisco J. G. Silva, Rúben D. F. S. Costa, Naiara Sebbe, Rita C. M. Sales-Contini
Publikováno v:
Metals, Vol 13, Iss 4, p 684 (2023)
Due to Inconel 718’s high mechanical properties, even at higher temperatures, tendency to work-harden, and low thermal conductivity, this alloy is considered hard to machine. The machining of this alloy causes high amounts of tool wear, leading to
Externí odkaz:
https://doaj.org/article/c38c3e0ac5904871968c16f73c5f974c
Autor:
A. F. V. Pedroso, V. F. C. Sousa, N. P. V. Sebbe, F. J. G. Silva, R. D. S. G. Campilho, R. C. M. Sales-Contini, A. M. P. Jesus
Publikováno v:
Metals, Vol 13, Iss 3, p 585 (2023)
Nickel-based superalloys, namely INCONEL® variants, have had an increase in applications throughout various industries like aeronautics, automotive and energy power plants. These superalloys can withstand high-temperature applications without suffer
Externí odkaz:
https://doaj.org/article/2a498f84bd17471584663ae885ac70ca
Autor:
Vitor Santos, Vitor F. C. Sousa, Francisco J. G. Silva, João C. O. Matias, Rúben D. Costa, Arnaldo G. Pinto, Raul D. S. G. Campilho
Publikováno v:
Systems, Vol 10, Iss 6, p 239 (2022)
Due to the automotive industry’s strict demands, customers submit constant production pressure, leading to the adoption of new methodologies, techniques, and management ideas. The goal is always to minimise losses and waste. These demands also affe
Externí odkaz:
https://doaj.org/article/93f1efae01d442fba3d79f0babbb5656
Publikováno v:
Metals, Vol 12, Iss 11, p 1874 (2022)
Additive manufacturing is defined as a process based on the superposition of layers of materials in order to obtain 3D parts; however, the process does not allow achieve the adequate and necessary surface finishing. In addition, with the development
Externí odkaz:
https://doaj.org/article/e7a8f64fe23b47e581d7576a90aec5d2
Autor:
André Rodrigues, Francisco J. G. Silva, Vitor F. C. Sousa, Arnaldo G. Pinto, Luís P. Ferreira, Teresa Pereira
Publikováno v:
Metals, Vol 12, Iss 10, p 1709 (2022)
One of the most critical factors in producing plastic injection molds is the cost estimation of machining services, which significantly affects the final mold price. These services’ costs are determined according to the machining time, which is usu
Externí odkaz:
https://doaj.org/article/2821893e4b6a4401a1d0ad58c0628dc6