Export 9208 results:
Sort by: Author Title Type [ Year  (Desc)]
2016
Romba, L. F., SS Valtchev, and R. Melicio. "Three-phase magnetic field system for wireless energy transfer." 2016 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2016 (2016): 73-78. Abstract
n/a
Bedon, C., and FA dos Santos Toward a Novel SMA-reinforced laminated glass panel. Advanced Engineering Materials and Modeling., 2016. AbstractWebsite
n/a
Duarte, Rafael, Denis Silva da Silveira, João Araújo, and Fernando Wanderley. "Towards a non-conformity detection method between conceptual and business process models." Tenth {IEEE} International Conference on Research Challenges in Information Science, {RCIS} 2016, Grenoble, France, June 1-3, 2016. 2016. 1-6. Abstract
n/a
Faveri, Cristiano De, Ana Moreira, João Araújo, and Vasco Amaral. "Towards Security Modeling of e-Voting Systems." 24th {IEEE} International Requirements Engineering Conference, {RE} 2016, Beijing, China, September 12-16, 2016. 2016. 145-154. Abstract
n/a
Soares, Paula I. P., Ana Isabel Sousa, Isabel M. M. Ferreira, Carlos M. M. Novo, and João Paulo Borges. "Towards the development of multifunctional chitosan-based iron oxide nanoparticles: Optimization and modelling of doxorubicin release." Carbohydrate Polymers. 153 (2016): 212-221. Abstract
n/a
Dias, C. J. "Transient heat diffusion in multilayered materials with thermal contact resistance." International Journal of Heat and Mass Transfer. 97 (2016): 1001-1009. AbstractWebsite
n/a
Grey, P., Pereira Pereira Barquinha Cunha Martins Fortunato L. S. P. "Transistors: Solid State Electrochemical WO3 Transistors with High Current Modulation (Adv. Electron. Mater. 9/2016)." Advanced Electronic Materials. 2 (2016). AbstractWebsite
n/a
Besleaga, C.a, Stan Pintilie Barquinha Fortunato Martins G. E. a I. "Transparent field-effect transistors based on AlN-gate dielectric and IGZO-channel semiconductor." Applied Surface Science. 379 (2016): 270-276. AbstractWebsite

The degradation of thin-film transistors (TFTs) caused by the self-heating effect constitutes a problem to be solved for the next generation of displays. Aluminum nitride (AlN) is a viable alternative for gate dielectric of TFTs due to its good thermal conductivity, matching coefficient of thermal expansion to indium-gallium-zinc-oxide, and excellent stability at high temperatures. Here, AlN thin films of different thicknesses were fabricated by a low temperature reactive radio-frequency magnetron sputtering process, using a low cost, metallic Al target. Their electrical properties have been thoroughly assessed. Furthermore, the 200 nm and 500 nm thick AlN layers have been integrated as gate-dielectric in transparent TFTs with indium-gallium-zinc-oxide as channel semiconductor. Our study emphasizes the potential of AlN thin films for transparent electronics, whilst the functionality of the fabricated field-effect transistors is explored and discussed. © 2016 Elsevier B.V. All rights reserved.

Araújo, João, and Peter J. Cameron. "Two generalizations of homogeneity in groups with applications to regular semigroups." Trans. Amer. Math. Soc.. 368 (2016): 1159-1188. AbstractWebsite
n/a
Araújo, João, and Peter J. Cameron. "Two generalizations of homogeneity in groups with applications to regular semigroups." Trans. Amer. Math. Soc.. 368 (2016): 1159-1188. AbstractWebsite
n/a
Bombonatti, Denise, Catarina Gralha, Ana Moreira, João Araújo, and Miguel Goulão. "Usability of requirements techniques: a systematic literature review." Proceedings of the 31st Annual {ACM} Symposium on Applied Computing, Pisa, Italy, April 4-8, 2016. 2016. 1270-1275. Abstract
n/a
Silva, Teresa, Francisco Costa, Judite Fernandes, Rogério Calvo, and Octávio Mateus The use of a portable X-ray fluorescence analyzer in the reconstitution of dinosaur fossils. European Conference on X-Ray Spectrometry. June 19 – 24, 2016, Gothenburg, Sweden, 2016. Abstract
n/a
Silva, Teresa, Francisco Costa, Judite Fernandes, Rog\é\}rio Calvo, and Oct\á\}vio Mateus. "The use of a portable X-ray fluorescence analyzer in the reconstitution of dinosaur fossils." European Conference on X-Ray Spectrometry. June 19 \–\} 24, 2016, Gothenburg, Sweden 2016. Abstract
n/a
Tolstogouzov, Alexander, Hugo Aguas, Rachid Ayouchi, Sergey F. Belykh, Fábio Luís, Gennady P. Gololobov, Augusto M. C. Moutinho, Reinhard Schwarz, Dmitry V. Suvorov, and Orlando M. N. D. Teodoro. "Vacuum solid-state ion-conducting silver source for application in field emission electric propulsion systems." Vacuum. 131 (2016): 252-258. Abstract
n/a
Moreira, Ana, Gunter Mussbacher, João Araújo, and Pablo Sánchez. "Welcome to the Sixth International Workshop on Model-Driven Requirements Engineering (MoDRE)." 24th {IEEE} International Requirements Engineering Conference, {RE} 2016, Beijing, China, September 12-16, 2016. 2016. 122. Abstract
n/a
Santos, Mafalda, Catarina Gralha, Miguel Goulão, João Araújo, Ana Moreira, and Joao Cambeiro. "What is the Impact of Bad Layout in the Understandability of Social Goal Models?" 24th {IEEE} International Requirements Engineering Conference, {RE} 2016, Beijing, China, September 12-16, 2016. 2016. 206-215. Abstract
n/a
Waskow, K., and O. Mateus. "What is your age? Dorsal rib histology as tool for individual age determination and analysis of life history traits in dinosaurs and other vertebrates." Annual Meeting of the Paleontological Society of Germany (PalGes). 2016. 87. Abstract
n/a
Baikova, E. N., SS Valtchev, R. Melicio, and V. F. Pires. "Wireless power transfer impact on data channel." 2016 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2016 (2016): 582-587. Abstract
n/a
Mendes, Manuel J., Andreia Araújo, António Vicente, Hugo Águas, Isabel Ferreira, Elvira Fortunato, and Rodrigo Martins. "{Design of optimized wave-optical spheroidal nanostructures for photonic-enhanced solar cells}." Nano Energy. 26 (2016): 286-296. AbstractWebsite

The interaction of light with wavelength-sized photonic nanostructures is highly promising for light management applied to thin-film photovoltaics. Several light trapping effects come into play in the wave optics regime of such structures that crucially depend on the parameters of the photonic and absorbing elements. Thus, multi-parameter optimizations employing exact numerical models, as performed in this work, are essential to determine the maximum photocurrent enhancement that can be produced in solar cells.Generalized spheroidal geometries and high-index dielectric materials are considered here to model the design of the optical elements providing broadband absorption enhancement in planar silicon solar cells. The physical mechanisms responsible for such enhancement are schematized in a spectral diagram, providing a deeper understanding of the advantageous characteristics of the optimized geometries. The best structures, composed of TiO2 half-spheroids patterned on the cells' top surface, yield two times higher photocurrent (up to 32.5 mA/cm2 in 1.5 $μ$m thick silicon layer) than the same devices without photonic schemes.These results set the state-of-the-art closer to the theoretical Lambertian limit. In addition, the considered light trapping designs are not affected by the traditional compromise between absorption enhancement versus current degradation by recombination, which is a key technological advantage.

Aroso, Ivo M., João C. Silva, Francisca Mano, Ana S. D. Ferreira, Madalena Dionísio, Isabel Sá-Nogueira, Susana Barreiros, Rui L. Reis, Alexandre Paiva, and Ana Rita C. Duarte. "{Dissolution enhancement of active pharmaceutical ingredients by therapeutic deep eutectic systems}." European Journal of Pharmaceutics and Biopharmaceutics. 98 (2016): 57-66. AbstractWebsite

A therapeutic deep eutectic system (THEDES) is here defined as a deep eutectic solvent (DES) having an active pharmaceutical ingredient (API) as one of the components. In this work, THEDESs are proposed as enhanced transporters and delivery vehicles for bioactive molecules. THEDESs based on choline chloride (ChCl) or menthol conjugated with three different APIs, namely acetylsalicylic acid (AA), benzoic acid (BA) and phenylacetic acid (PA), were synthesized and characterized for thermal behaviour, structural features, dissolution rate and antibacterial activity. Differential scanning calorimetry and polarized optical microscopy showed that ChCl:PA (1:1), ChCl:AA (1:1), menthol:AA (3:1), menthol:BA (3:1), menthol:PA (2:1) and menthol:PA (3:1) were liquid at room temperature. Dissolution studies in PBS led to increased dissolution rates for the APIs when in the form of THEDES, compared to the API alone. The increase in dissolution rate was particularly noticeable for menthol-based THEDES. Antibacterial activity was assessed using both Gram-positive and Gram-negative model organisms. The results show that all the THEDESs retain the antibacterial activity of the API. Overall, our results highlight the great potential of THEDES as dissolution enhancers in the development of novel and more effective drug delivery systems.