Results 1 to 10 of about 2,019,771 (150)
Signal Quality Investigation of a New Wearable Frontal Lobe EEG Device
Sensors, 2022 The demand for non-laboratory and long-term EEG acquisition in scientific and clinical applications has put forward new requirements for wearable EEG devices. In this paper, a new wearable frontal EEG device called Mindeep was proposed.
Zhilin Gao +4 more
doaj +3 more sources
Signalling Rivalry and Quality Uncertainty in a Duopoly [PDF]
Journal of Industry, Competition and Trade, 2013 This paper considers price competition in a duopoly with quality uncertainty. The established firm (the `incumbent') offers a quality that is publicly known; the other firm (the `entrant') offers a new good whose quality is not known by some consumers ...
Bester, Helmut, Demuth, Juri
core +7 more sources
Signal Quality in Continuous Transcutaneous Bilirubinometry
SensorsBilirubin is a product of the metabolism of hemoglobin from red blood cells. Higher levels of bilirubin are a sign that either there is an unusual breaking down rate of red blood cells or the liver is not able to eliminate bilirubin, through bile, into ...
Fernando Crivellaro +2 more
doaj +3 more sources
Fetal QRS Detection in Noninvasive Abdominal Electrocardiograms Using Principal Component Analysis and Discrete Wavelet Transforms with Signal Quality Estimation [PDF]
Journal of Biomedical Physics and Engineering, 2021 Background: Fetal heart rate (FHR) extracted from abdominal electrocardiogram (ECG) is a powerful non-invasive method in appropriately assessing the fetus well-being during pregnancy.
Mohammad Javad Mollakazemi +3 more
doaj +1 more source
Performance Evaluation of CentiSpace Navigation Augmentation Experiment Satellites
Sensors, 2023 This paper presents the performance analysis of CentiSpace low earth orbit (LEO) experiment satellites. Distinguishing them from other LEO navigation augmentation systems, the co-time and co-frequency (CCST) self-interference suppression technique is ...
Lin Chen +12 more
doaj +1 more source
Sensors, 2023 In this paper, we propose a new method to quantitatively evaluate the quality of the carrier phase observation signals of the BeiDou Navigation Satellite System (BDS) during weak and moderate geomagnetic storms.
Liming He +5 more
doaj +1 more source
Signal Quality Analysis for Long-Term ECG Monitoring Using a Health Patch in Cardiac Patients
Sensors, 2023 Cardiovascular diseases (CVD) represent a serious health problem worldwide, of which atrial fibrillation (AF) is one of the most common conditions. Early and timely diagnosis of CVD is essential for successful treatment.
Israel Campero Jurado +13 more
doaj +1 more source
Imperfect Competition and Quality Signaling [PDF]
SSRN Electronic Journal, 2005 We examine the interplay of imperfect competition and incomplete information in the context of price competition among firms producing horizontally and vertically differentiated substitute products. Incomplete information about vertical quality (consumer satisfaction) signalled via price softens price competition.
Andrew F. Daughety +1 more
openaire +2 more sources
A Machine Learning Approach for the Automatic Estimation of Fixation-Time Data Signals’ Quality
Sensors, 2020 Fixation time measures have been widely adopted in studies with infants and young children because they can successfully tap on their meaningful nonverbal behaviors.
Giulio Gabrieli +3 more
doaj +1 more source
Frontiers in Ecology and Evolution, 2021 Birds communicate through acoustic variation in their songs for territorial defense and mate attraction. Noisy urban conditions often induce vocal changes that can alleviate masking problems, but that may also affect signal value.
Gabrielle S. M. Winandy +5 more
doaj +1 more source