18 documents found, page 1 of 2
Influence of ink rheology and post processing in the structural performance of ...
Faria, M.S.; Alves, M.F.R.P.; Cintra, R.; Oliveira, F.J.; Fernandes, C.M.; Figueiredo, D.; Olhero, S.M.The fabrication of complex shaped Si3N4 parts by conventional methods is challenging due to its high hardness and mechanical strength. Additive manufacturing (AM) appeared as a competitive way to attain three-dimensional complexity at lower costs. However, most of AM technologies still present limitations in producing high dense ceramics, mainly due to several difficulties in developing proper feedstock. This w...
Understanding drop spreading behaviour on WC-10wt%Co cutting tools – an experim...
Guimaraes, B.; Silva, J.; Fernandes, C. M.; Figueiredo, D.; Carvalho, O.; Miranda, G.; Silva, Filipe SamuelWC-Co cutting tools performance under demanding cutting conditions largely depend on the efficiency of the cutting fluid, mainly its ability to remove heat and reduce friction, both highly dependent on the wettability and drop spreading behaviour of the fluid. In this context, this study focuses on the spreading behaviour of machining cutting fluid and water in WC-10 wt%Co cutting tools surface. Contact angles ...
Understanding drop spreading behaviour on WC-10wt%Co cutting tools – an experim...
Guimarães, B.; Silva, J.; Fernandes, Cristina Maria; Figueiredo, D.; Carvalho, O.; Miranda, Georgina; Silva, F. S.WC-Co cutting tools performance under demanding cutting conditions largely depend on the efficiency of the cutting fluid, mainly its ability to remove heat and reduce friction, both highly dependent on the wettability and drop spreading behaviour of the fluid. In this context, this study focuses on the spreading behaviour of machining cutting fluid and water in WC-10 wt%Co cutting tools surface. Contact angles ...
A new concept of automated manufacturing process for wire rope terminals
Figueiredo, D.; Silva, Francisco J. G; Campilho, R.D.S.G.; Silva, André; Pimentel, C.; Matias, J.C.O.The products related to automotive industry need to be extremely competitive. The metallic wire ropes used to open doors in the vehicles are based on a braided wire rope provided with accessories. The more expensive is the vehicle, the more complex is the required final wire rope. In order to prevent the corrosion and reduce noise, the internal metallic cable can be coated with a polymer via extrusion. However,...
A novel approach to reduce in-service temperature in WC-Co cutting tools
Guimarães, B.; Fernandes, C. M.; Figueiredo, D.; Cerqueira, M. F.; Carvalho, O.; Silva, Filipe Samuel; Miranda, G.The high temperatures generated in the cutting zone during machining processes results in an increase of wear mechanisms, reducing the lifetime of cutting tools. In this sense, cutting tools industry is constantly looking for new ways to reduce this temperature. This work proposes a novel cemented carbide cutting tool design and fabrication process for enhancing these tools thermal conductivity. This design inc...
LHC forward physics
Akiba, K.; Akbiyik, M.; Albrow, M.; Arneodo, M.; Avati, V.; Baechler, J.; Baillie, O. Villalobos; Bartalini, P.; Bartels, J.; Baur, S.; Baus, C.Made available in DSpace on 2018-11-26T17:10:23Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-11-01; Science and Technology Facilities Council; Karlsruhe Inst Technol, Karlsruhe, Germany; Fermilab Natl Accelerator Lab, Batavia, IL USA; INFN Torino, Turin, Italy; Univ Piemonte Orientale, Novara, Italy; AGH Univ Sci & Technol, Krakow, Poland; CERN, Geneva, Switzerland; CCNU, Wuhan, Hubei, Peoples R China...
Observation of proton-tagged, central (semi)exclusive production of high-mass l...
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Eroe, J.Made available in DSpace on 2018-11-29T23:05:25Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-07-24; Austrian Federal Ministry of Science, Research and Economy; Austrian Science Fund; Belgian Fonds de la Recherche Scientifique; Fonds voor Wetenschappelijk Onderzoek; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES);...
Species-people correlations and the need to account for survey effort in biodiv...
Barbosa, A. Márcia; Pautasso, M.; Figueiredo, D.Aim Positive regional correlations between biodiversity and human population have been detected for several taxonomic groups and geographical regions. Such correlations could have important conservation implications and have been mainly attributed to ecological factors, with little testing for an artefactual explanation: more populated regions may show higher biodiversity because they are more thoroughly survey...
Species-people correlations and the need to account for survey effort in biodiv...
Barbosa, A. Márcia; Pautasso, M.; Figueiredo, D.Aim Positive regional correlations between biodiversity and human population have been detected for several taxonomic groups and geographic regions. Such correlations could have important conservation implications and have been mainly attributed to ecological factors, with little testing for an artefactual explanation: more populated regions may show higher biodiversity because they are more thoroughly surveyed...
Modelling disjunct carnivore distributions: the case of the wolf (Canis lupus) ...
Barbosa, A. Márcia; Puerto, M.A.; Figueiredo, D.; Real, R.Book Description: In this book, the authors present current research in the conservation, species and management of carnivores. Topics discussed include the adaptation, impact and management of the raccoon dog in Europe; human perceptions of cougars in Canada and El Salvador; the impact on wildlife conservation of emerging protozoal tick-borne diseases of canids; mitigating conflict between humans and large car...