Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Fernando Medeiro"'
Autor:
Guilherme Calvet, Maria Ogrzewalska, Wagner Tassinari, Lusiele Guaraldo, Paola Resende, Trevon Fuller, Stephanie Penetra, Michele Borges, Anielle Pina-Costa, Ezequias Martins, Isabella Moraes, Heloisa Santos, Luana Damasceno, Fernando Medeiros-Filho, Otavio Espindola, Fernando Mota, Valéria Nacife, Alex Pauvolid-Corrêa, Jimmy Whitworth, Chris Smith, Marilda Siqueira, Patrícia Brasil
Publikováno v:
BMC Infectious Diseases, Vol 23, Iss 1, Pp 1-9 (2023)
Abstract Background While nasopharyngeal (NP) swabs are considered the gold standard for severe acute respiratory coronavirus 2 (SARS-CoV-2) real-time reverse transcriptase-polymerase chain reaction (RT-PCR) detection, several studies have shown that
Externí odkaz:
https://doaj.org/article/170351993f544656a2f6c894a954ae0b
Publikováno v:
idUS. Depósito de Investigación de la Universidad de Sevilla
instname
Digital.CSIC. Repositorio Institucional del CSIC
instname
Digital.CSIC. Repositorio Institucional del CSIC
This paper presents a low-area low-power Switched-Capacitor (SC)-based Programmable-Gain Analog-to-Digital Converter (PG-ADC) suitable for in-channel neural recording applications. The PG-ADC uses a novel implementation of the binary search algorithm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c78cf92d94c7503054d3f97635864750
https://doi.org/10.1109/tbcas.2013.2270180
https://doi.org/10.1109/tbcas.2013.2270180
Publikováno v:
International Journal of Circuit Theory and Applications. 41:972-987
This work was supported by the Spanish Ministry of Science and Innovation under Grant TEC2009-08447, the Junta de Andalucia under Grant TIC-02818, and the 2007–2013 FEDER Program.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa788b47a8c8f4b89fbab57c0340c4d7
https://doi.org/10.1002/cta.1806
https://doi.org/10.1002/cta.1806
Autor:
Ángel Rodríguez-Vázquez, Ana González-Márquez, Rafael Domínguez-Castro, Fernando Medeiro, Alberto Villegas, Alexandre Charlet, F. Jimenez-Garrido
Publikováno v:
idUS: Depósito de Investigación de la Universidad de Sevilla
Universidad de Sevilla (US)
idUS. Depósito de Investigación de la Universidad de Sevilla
instname
Universidad de Sevilla (US)
idUS. Depósito de Investigación de la Universidad de Sevilla
instname
This paper reports a Low-Noise CMOS Image Sensor. Low-noise operation is achieved owing to the combination of a noise-enhanced pixel, the use of a two-step ADC architecture and the analysis, and the optimization thereof, of the noise contributed by t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a86590c5d7cf53c3a4a486daf16980ef
Autor:
R. del Rio, Fernando Medeiro, O. Guerra, Sara Escalera, J.M. de la Rosa, Belén Pérez-Verdú, Ángel Rodríguez-Vázquez
Publikováno v:
idUS. Depósito de Investigación de la Universidad de Sevilla
instname
Digital.CSIC. Repositorio Institucional del CSIC
instname
Digital.CSIC. Repositorio Institucional del CSIC
This paper describes a 0.35-μm CMOS chopper-stabilized switched-capacitor 2-1 cascade ΣΔ modulator for automotive sensor interfaces. The modulator architecture has been selected from an exhaustive comparison among multiple topologies in terms of r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ed546c826b27211c0cb3cbd65dc97b7
https://doi.org/10.1109/jssc.2005.857356
https://doi.org/10.1109/jssc.2005.857356
Autor:
Ángel Rodríguez-Vázquez, Francisco V. Fernández, Fernando Medeiro, J. Ruiz-Amaya, R. del Rio, Belén Pérez-Verdú, J.M. de la Rosa
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 52:1795-1810
This paper presents a high-level synthesis tool for /spl Sigma//spl Delta/ modulators (/spl Sigma//spl Delta/Ms) that combines an accurate SIMULINK-based time-domain behavioral simulator with a statistical optimization core. Three different circuit t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df292063de78f72b99ac695f3ccf2f41
https://doi.org/10.1109/tcsi.2005.852479
https://doi.org/10.1109/tcsi.2005.852479
Autor:
Rafael Domínguez-Castro, R. del Rio, Fernando Medeiro, Belén Pérez-Verdú, Manuel Delgado-Restituto, J.M. de la Rosa, Ángel Rodríguez-Vázquez
Publikováno v:
IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications. 51:47-62
We present a 90-dB spurious-free dynamic range sigma-delta modulator (/spl Sigma//spl Delta/M) for asymmetric digital subscriber line applications (both ADSL and ADSL+), with up to a 4.4-MS/s digital output rate. It uses a cascade (MASH) multibit arc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54177f694be4776cc59c2feb0cd474e1
https://doi.org/10.1109/tcsi.2003.821308
https://doi.org/10.1109/tcsi.2003.821308
CMOS Telecom Data Converters compiles the latest achievements regarding the design of high-speed and high-resolution data converters in deep submicron CMOS technologies. The four types of analog-to-digital converter architectures commonly found in th
The interest for :I:~ modulation-based NO converters has significantly increased in the last years. The reason for that is twofold. On the one hand, unlike other converters that need accurate building blocks to obtain high res olution, :I:~ convert
Autor:
Rocío del Río, Fernando Medeiro, Jose M. de la Rosa, Ángel Rodríguez-Vázquez, Belén Pérez-Verdú
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
This paper studies the tonal behaviour of the quantization noise in 2nd-order bandpass Sigma-Delta modulators. Closed-form expressions for the frequency of the idle tones are derived for different locations of the signal centre frequency. The analyti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b96a837df2e6fc1ca586e36a6fab036e
https://doi.org/10.1016/s0026-2692(02)00049-6
https://doi.org/10.1016/s0026-2692(02)00049-6