12 documents found, page 1 of 2
Leveraging ML for predicting UCS of soil stabilised with one-part alkali-activa...
Tinoco, Joaquim; Pinheiro, João Manuel Machado; Cristelo, Nuno; Rodrigues, Mafalda; Miranda, Tiago F. S.The transition to sustainable construction materials has driven interest in alternatives to Portland cement. Soil stabilisation with alkali-activated binders is a promising approach, yet its widespread application requires reliable predictive tools for assessing unconfined compressive strength (UCS). This study explores the use of machine learning algorithms to predict UCS in soil stabilised with a one-part alk...
Novel knee implant fixation technology: 3D printed foamed bioactive screw/elect...
Rodrigues, Mafalda; Moreira, Rui; Silva, Inês V.; Duarte, Marta M.; Ribeiro, Viviana P.; Oliveira, Ana L.; Costa, João B.Introduction: Musculoskeletal injuries, widespread across all ages, genders, and sociodemographic groups1, are prevalent in the knee joint. Besides the conservative treatments and physiotherapy, several degenerative and traumatic knee injuries require surgical intervention2. To address one of the most significant challenges in surgical orthopaedic procedures, long-term implant fixation3, an innovative solution ...
3D printed bioactive interference screw and PCL bio-filler for ligament fixation
Rodrigues, Mafalda; Moreira, Rui; Silva, Inês V.; Duarte, Marta M.; Ribeiro, Viviana P.; Oliveira, Ana L.; Costa, João B.Musculoskeletal injuries, widespread across all ages, genders and sociodemographic groups, are prevalent in the knee joint and require a range of treatments - from conservative methods to surgical interventions, such as meniscal resection, repair, reconstruction or tissue engineering (TE) approaches. To address one of the most significant challenges in orthopedic procedures – long-term implant fixation – an inn...
Industrial scale production of innovative asphalt mixtures with steel slag aggr...
Loureiro, Carlos Daniel Aleixo; Moura, Caroline Fernandes Nunes; Silva, Hugo M. R. D.; Oliveira, Joel R. M.; Rodrigues, MafaldaThis paper aims to assess and analyze the production and application of asphalt mixtures incorporating steel slag aggregates (SSA) and reclaimed asphalt (RA) at the industrial scale. The goal was to identify the main difficulties in translating the laboratory scale to the industrial scale and check for any differences in the application phase of these asphalt mixtures. Mechanical characterization of the trial s...
Design procedures for sustainable structural concretes using wastes and industr...
Neves, Ana; Almeida, João; Cruz, Fábio Quintas; Miranda, Tiago F. S.; Cunha, Vitor M. C. F.; Rodrigues, Mafalda; Costa, José; Pereira, E. N. B.The protection of the environment must be a priority in our society, and the construction sector can contribute significantly to this goal. Construction, being one of the industrial sectors that is more demanding in terms of raw materials, must reinforce its effort to implement, in a more profound and systematic way, the paradigm of the circular economy. In this sense, in recent years several studies have been ...
Steel slag and recycled concrete aggregates: replacing quarries to supply susta...
Loureiro, Carlos Daniel Aleixo; Moura, Caroline Fernandes Nunes; Rodrigues, Mafalda; Martinho, Fernando C. G.; Silva, Hugo M. R. D.Various researchers are developing efforts to integrate waste and by-products as alternative materials in road construction and maintenance, reducing environmental impacts and promoting a circular economy. Among the alternative materials that several authors have studied regarding their use as partial or total substitutes for natural aggregates in the asphalt paving industry, the steel slag aggregate (SSA) and ...
Viability of using high amounts of steel slag aggregates to improve the circula...
Moura, Caroline; Nascimento, Lucas; Loureiro, Carlos; Rodrigues, Mafalda; Oliveira, Joel R. M.; Silva, Hugo M. R. D.Steel slag is a byproduct generated as waste during the steelmaking process and can be considered a cost‐effective and environmentally acceptable alternative to replace natural aggre-gates. Using steel slag aggregates (SSA) to produce asphalt mixtures promotes sustainability and circular economy principles by using an industrial byproduct as a raw material. Thus, this work mainly aims to design more sustainable...
The Playground - the future of platform capitalism
Féteira, Eduardo; Gomes, Raquel; Rodrigues, Mafalda; Fernandes, MatildeThe Playground is a project addressing the monetization of social media and the way in which these platforms use collected data to develop a selection process that studies and conditions its interviewees through technology to achieve its own independent gains. The dystopic scenario takes place 5 years in the future when, after decades of data mining the most personal information about the lives of its users, th...
The Playground - the future of platform capitalism
Féteira, Eduardo; Gomes, Raquel; Rodrigues, Mafalda; Fernandes, MatildeThe Playground is a project addressing the monetization of social media and the way in which these platforms use collected data to develop a selection process that studies and conditions its interviewees through technology to achieve its own independent gains. The dystopic scenario takes place 5 years in the future when, after decades of data mining the most personal information about the lives of its users, th...
Lanthanide luminescence to mimic molecular logic and computing through physical...
Rodríguez, Miguel Andres Hernnadez; Brites, Carlos D. S.; Antorrena, Guillermo; Piñol, Rafael; Cases, Rafael; Pérez‐García, Lluïsa; Rodrigues, MafaldaThe remarkable advances in molecular logic reported in the last decade demonstrate the potential of luminescent molecules for logical operations, a paradigm-changing concerning silicon-based electronics. Trivalent lanthanide (Ln3+) ions, with their characteristic narrow line emissions, long-lived excited states, and photostability under illumination, may improve the state-of-the-art molecular logical devices. H...