Results 1 to 10 of about 1,657 (118)

Initial Study Using Electrocardiogram for Authentication and Identification [PDF]

open access: yesSensors, 2022
Recently, several studies have demonstrated the potential of electrocardiogram (ECG) to be used as a physiological signature for biometric systems (BS).
Teresa M. C. Pereira   +2 more
doaj   +2 more sources

Low-Cost DLW Setup for Fabrication of Photonics-Integrated Circuits [PDF]

open access: yesMicromachines
The development of photonic-integrated circuits (PICs) for data communication, sensing, and quantum computing is hindered by the high complexity and cost of traditional fabrication methods, which rely on expensive equipment, limiting accessibility for ...
André Moreira   +3 more
doaj   +2 more sources

Modeling and Maximum Power Point Tracking Techniques of Photovoltaic Systems

open access: yesInternational Journal of Photoenergy, 2015
International Journal of Photoenergy, Volume 2015, Issue 1, 2015.
Marcelo Cabral Cavalcanti   +4 more
doaj   +2 more sources

Error Recovery in the Time-Triggered Paradigm with FTT-CAN [PDF]

open access: yesSensors, 2018
Data networks are naturally prone to interferences that can corrupt messages, leading to performance degradation or even to critical failure of the corresponding distributed system.
Luis Marques   +3 more
doaj   +2 more sources

Frequency-Resolved Dynamic Functional Connectivity Reveals Scale-Stable Features of Connectivity-States [PDF]

open access: yesFrontiers in Human Neuroscience, 2018
Investigating temporal variability of functional connectivity is an emerging field in connectomics. Entering dynamic functional connectivity by applying sliding window techniques on resting-state fMRI (rs-fMRI) time courses emerged from this topic.
Markus Goldhacker   +6 more
doaj   +2 more sources

Study of Flow Rate Measurements Derived from Temperature Profiles of an Emulated Well by a Laboratory Prototype [PDF]

open access: yesSensors, 2019
The objective of this work is the study of the procedure for flow rate measurement derived from temperature profiles. This method is deemed appropriate because of the inability to mount conventional flow meters in multiple-zone oil wells. In this work, a
Werbet L. A. Silva   +5 more
doaj   +2 more sources

Unveiling the biometric potential of finger-based ECG signals. [PDF]

open access: yesComput Intell Neurosci, 2011
The ECG signal has been shown to contain relevant information for human identification. Even though results validate the potential of these signals, data acquisition methods and apparatus explored so far compromise user acceptability, requiring the acquisition of ECG at the chest. In this paper, we propose a finger‐based ECG biometric system, that uses
Lourenço A, Silva H, Fred A.
europepmc   +2 more sources

Desgaste das próteses da articulação temporomandibular: uma revisão narrativa

open access: yesRevSALUS, 2021
As próteses da articulação temporomandibular substitutem as estruturas envolvidas (côndilo/fossa) podendo ser pré-fabricadas em geometria padrão ou personalizáveis aos pacientes. Ao longo dos anos vários materiais e modelos geométricos foram testados na
Henrique Pinto-Borges   +5 more
doaj   +1 more source

Satisfação no trabalho dos profissionais do ACeS Baixo Vouga II.

open access: yesActa Médica Portuguesa, 2011
Job satisfaction is a measure of quality of life at work and is related to emotional states. The interest for this theme is increasing and, in the last years, many studies have attempted to demonstrate its relation with professional performance.
Silvina Santana, José Cerdeira
doaj   +1 more source

Tomographic image analysis of reinforcement distribution in composites using a flexible and material’s specialist-friendly computational environment

open access: yesMaterials Letters: X, 2020
A computational environment - in the following called Problem Solving Environment (PSE) - dedicated to the analysis of tomographic images of composite materials is presented.
Fernando Birra   +7 more
doaj   +1 more source

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