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2,623 results on '"Díaz, David A"'

1. Enhanced and Spectrally Selective Near Infrared Photothermal Conversion in Plasmonic Nanohelices

Author

Delgado-Notario, Juan A., López-Díaz, David, McCloskey, David, and Caridad, José M.

Subjects
Condensed Matter - Materials Science
Abstract

We study the photothermal conversion in plasmonic nanohelices, unveiling how helical nanostructures made from metals with a notable interband activity, such as cobalt (Co) and nickel (Ni), exhibit a remarkable temperature rise $\Delta$T up to $\approx$1000 K under illumination. Such outstanding $\Delta$T values exclusively occur at wavelengths close to their localised plasmon resonances ($\Delta$T is significantly lower off resonance), and therefore the photothermal conversion of these nanoparticles is spectrally selective. The exceptional and spectrally selective temperature rise is demonstrated at near infrared wavelengths, which prompts the use of Co and Ni helical nanoparticles in a wide range of photothermal applications including solar energy conversion, seawater desalination, catalysis, or nanomedicine., Comment: 10 pages, 3 figures

Published
2024
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11. Position of the Ibero-American Society of Neurourology and Urogynecology (SINUG) on the urodynamics (UDS) in women undergoing surgical treatment for stress urinary incontinence (SUI)

Author

Medina-Polo, José, Arlandis-Guzmán, Salvador, Martínez-García, Roberto, Padilla-Fernández, Bárbara, Castro-Díaz, David Manuel, Cruz, Francisco, Errando-Smet, Carlos, Espuña-Pons, Montserrat, González-Enguita, Carmen, López-Fando, Luis, Martín-Martínez, Alicia, Martínez-Cuenca, Esther, Montes-Posada, Isabel, Müller-Arteaga, Carlos, Muñoz-Menéndez, Ana Belén, Ramírez-García, Inés, Ros, Cristina, and Blasco-Hernández, Pedro

Published
2024
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29. A Comparative Evaluation of Heart Rate Estimation Methods using Face Videos

Author

Hernandez-Ortega, Javier, Fierrez, Julian, Morales, Aythami, and Diaz, David

Subjects
Computer Science - Computer Vision and Pattern Recognition, Computer Science - Machine Learning, Electrical Engineering and Systems Science - Signal Processing
Abstract

This paper presents a comparative evaluation of methods for remote heart rate estimation using face videos, i.e., given a video sequence of the face as input, methods to process it to obtain a robust estimation of the subjects heart rate at each moment. Four alternatives from the literature are tested, three based in hand crafted approaches and one based on deep learning. The methods are compared using RGB videos from the COHFACE database. Experiments show that the learning-based method achieves much better accuracy than the hand crafted ones. The low error rate achieved by the learning based model makes possible its application in real scenarios, e.g. in medical or sports environments., Comment: Accepted in "IEEE International Workshop on Medical Computing (MediComp) 2020"

Published
2020

31. Immunomodulation with AM3 and antioxidants creates an adequate framework for skin repair and decreases the monocyte proinflammatory stage in smoker women

Author

Jimenez-Gómez, Natalia, López-Suárez, Andrea, Haro, Sergio, Fernández-González, Pablo, Monserrat, Jorge, Eraña-Tomás, Itziar, Cuevas-Santos, Jesus, Rodríguez-Luna, Azahara, Ortega, Miguel A., Gómez-Sánchez, María José, Díaz, David, Jaén-Olasolo, Pedro, and Álvarez-Mon, Melchor

Published
2024
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45. Dam Safety—Living with the Risk of Failure

Author

Froehlich, David C., Diaz, David Gonzalez, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Ghosh, Chandan, editor, and Kolathayar, Sreevalsa, editor

Published
2022
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