21 documents found, page 1 of 3
Femoroacetabular Contact Force Measurement in Hip Arthroscopy
Dantas, Pedro; Gonçalves, Sérgio Rodrigues; Gonçalves, Sérgio Rodrigues; Mascarenhas, Vasco; Martins, Jorge; Tavares da Silva, Miguel; consciencia, joseFunding Information: The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: P.D. reports research funding from CUF related to this study as part of a doctoral scholarship grant; and speaking and lecture fees from Smith & Nephew and DePuy Synthes. S.B.G. reports financial support was provided by Portuguese Foundation for Science and ...
Assessment of Engine Performance and Emissions with Eucalyptus Oil and Diesel B...
Chivu, Robert Mădălin; Martins, Jorge; Popescu, Florin; Gonçalves, Margarida; Uzuneanu, Krisztina; Frătița, Michael; Brito, Francisco P.Funding Information: This research was funded by \u201CDunarea de Jos\u201D University of Galati, Romania, grant research No. RF2474/31.05.2024. Publisher Copyright: © 2024 by the authors.; This research evaluates the feasibility of using eucalyptus oil blended with conventional diesel fuel in diesel engines. Eucalyptus globulus is one of the main tree species cultivated for paper pulp in western European count...
Parylene C as a Multipurpose Material for Electronics and Microfluidics
Coelho, Beatriz J.; Pinto, Joana V.; Martins, Jorge; Rovisco, Ana; Barquinha, Pedro; Fortunato, Elvira; Baptista, Pedro V.; Martins, RodrigoPublisher Copyright: © 2023 by the authors.; Poly(p-xylylene) derivatives, widely known as Parylenes, have been considerably adopted by the scientific community for several applications, ranging from simple passive coatings to active device components. Here, we explore the thermal, structural, and electrical properties of Parylene C, and further present a variety of electronic devices featuring this polymer: tr...
Alkali-Doped Nanopaper Membranes Applied as a Gate Dielectric in FETs and Logic...
Gaspar, Diana; Martins, Jorge; Carvalho, José Tiago; Grey, Paul; Simões, Rogério; Fortunato, Elvira; Martins, Rodrigo; Pereira, LuísFunding Information: The manuscript was written mainly by D.G. with the contributions of all authors. The conceptualization of the work was made by D.G. and L.P. The majority of the experimental work, fabrication, and characterization of the nanopaper was conducted by D.G. with support from P.G. and J.T.C. on the functionalization and electrochemical characterization. The electrical characterization and enduran...
Turpentine as an Additive for Diesel Engines
Chivu, Robert Mădălin; Martins, Jorge; Popescu, Florin; Uzuneanu, Krisztina; Ion, Ion V.; Gonçalves, Margarida; Codău, Teodor Cezar; Onofrei, ElenaFunding Information: This research was funded by the following projects, institutions and funding agencies: Research Project from the Mechanical Engineering and Resource Sustainability Center—MEtRICs—through Fundação para a Ciência e a Tecnologia (FCT), Norte2020, Compete2020, under the PORTUGAL 2020 Partnership Agreement, through Portuguese national funds of FCT/MCTES (PIDDAC) and the European Regional Develop...
Foldable and Recyclable Iontronic Cellulose Nanopaper for Low-Power Paper Elect...
Cunha, Inês; Ferreira, Sofia Henriques; Martins, Jorge; Fortunato, Elvira; Gaspar, Diana; Martins, Rodrigo; Pereira, LuísNanomodelling and Nanofabrication – i3N, project CHIHC, reference PTDC/NAN‐MAT/32558/2017, project CELLECTIVE, reference PTDC/CTM‐CTM/4653/2021, The authors would also like to thank their colleagues Daniela Gomes, Ana Pimentel, Sónia Pereira and Tomás Calmeiro from CENIMAT/i3N for the SEM, DSC‐TGA, XRD and AFM measurements, respectively.; An increase in the demand for the next generation of “Internet-of-Things”...
Experimental assessment of the performance and emissions of a spark-ignition en...
Costa, Joaquim; Martins, Jorge; Arantes, Tiago; Gonçalves, Margarida; Durão, Luis; Brito, Francisco P.UIDP/04077/2020; The use of biofuels for spark ignition engines is proposed to diversify fuel sources and reduce fossil fuel consumption, optimize engine performance, and reduce pollutant emissions. Additionally, when these biofuels are produced from low-grade wastes, they constitute valorisation pathways for these otherwise unprofitable wastes. In this study, ethanol and pyrolysis biogasoline made from low-gra...
Healable Cellulose Iontronic Hydrogel Stickers for Sustainable Electronics on P...
Cunha, Inês; Martins, Jorge; Gaspar, Diana; Bahubalindruni, Pydi Ganga; Fortunato, Elvira; Martins, Rodrigo; Pereira, LuísNovel nature-based engineered functional materials combined with sustainable and economically efficient processes are among the great challenges for the future of mankind. In this context, this work presents a new generation of versatile flexible and highly conformable regenerated cellulose hydrogel electrolytes with high ionic conductivity and self-healing ability, capable of being (re)used in electrical and e...
Towards Sustainable Crossbar Artificial Synapses with Zinc-Tin Oxide
Silva, Carlos; Martins, Jorge; Deuermeier, Jonas; Pereira, Maria Elias; Rovisco, Ana; Barquinha, Pedro; Goes, João; Martins, Rodrigo; Fortunato, ElviraUIDB/50025/2020-2023; In this article, characterization of fully patterned zinc-tin oxide (ZTO)-based memristive devices with feature sizes as small as 25 µm2 is presented. The devices are patterned via lift-off with a platinum bottom contact and a gold-titanium top contact. An on/off ratio of more than two orders of magnitude is obtained without the need for electroforming processes. Set operation is a current...
Ta2O5/SiO2 Multicomponent Dielectrics for Amorphous Oxide TFTs
Martins, Jorge; Kiazadeh, Asal; Pinto, Joana V.; Rovisco, Ana; Gonçalves, Tiago; Deuermeier, Jonas; Alves, Eduardo; Martins, Rodrigo; Fortunato, ElviraCo-sputtering of SiO2 and high-κ Ta2O5 was used to make multicomponent gate dielectric stacks for In-Ga-Zn-O thin-film transistors (IGZO TFTs) under an overall low thermal budget (T = 150 °C). Characterization of the multicomponent layers and of the TFTs working characteristics (employing them) was performed in terms of static performance, reliability, and stability to understand the role of the incorporation o...