Results 21 to 30 of about 5,878,598 (319)
Photonic Sensors, 2023 Photodetectors operating at the wavelength in the visible spectrum are key components in high-performance optoelectronic systems. In this work, massive nonlinearities in amorphous silicon p-i-n photodiodes enabled by the photogating are presented ...
Andreas Bablich +4 more
doaj +1 more source
Photonics, 2023 This study experimentally demonstrates two types of ultra-broadband metamaterial absorbers with high performance in the visible-to-near-infrared range by using different anti-reflection coatings (i.e., SiO2 and Si3N4) and a multi-subcell Ti-SiO2-Ti ...
Dongqing Wu +4 more
doaj +1 more source
Investigation of Frequency Scanning Printed Bruce Array Antenna
IEEE Access, 2020 A printed edge-fed counterpart of wire Bruce array antenna, with open-stopband mitigation at broadside, is presented. The proposed antenna comprises of 11 meandered unit-cells periodically modulated in congruence with wire Bruce array antenna's theory ...
Zeeshan Ahmed +3 more
doaj +1 more source
Toward Applicable EEG-Based Drowsiness Detection Systems: A Review
Frontiers in Biomedical Technologies, 2022 Purpose: Drowsy driving accounts for many accidents and has attracted substantial research attention in recent years. Electroencephalography (EEG) signals are shown to be a reliable measure for the early detection of drowsiness.
Nasrin Sheibani Asl +3 more
doaj +1 more source
IEEE Transactions on Power Systems, 2016 Science Foundation ...
Federico Milano, Álvaro Ortega
openaire +3 more sources
Frequency-phase profile. [PDF]
, 2016 Top: Average phase-lag vs. frequency of one of the participants in both conditions; with and without gaze. Bottom: Phase improvement vs. frequency of one of the participants due to the presence of the gaze cues.
Mahdi Khoramshahi (2826725) +4 more
core +1 more source
QUASIORTHOGONAL FREQUENCY ACCESS ON SUBCARRIER FREQUENCIES
Advanced Information Systems, 2019 In the article, it is described the principles of implementing the method based on quasiorthogonal frequency access on subcarrier frequencies. The key element of quasiorthogonal frequency access on subcarrier frequencies is the using of the individual distribution of frequency subcarriers in different frequency plans of the ensemble in the general ...
Sverhunova, Yuliia +3 more
openaire +4 more sources
Magic Frequencies for Cesium Primary-Frequency Standard [PDF]
Physical Review Letters, 2008 4 pages, 2 ...
Flambaum, V. V. +2 more
openaire +3 more sources
Exact BER Analysis of OFDM Systems Communicating over Frequency-Selective Fading Channels Subjected to Carrier Frequency Offset [PDF]
, 2007 Orthogonal Frequency Division Multiplexing (OFDM) has been employed in numerous wireless standards. However, the performance of OFDM systems is degraded by both the Carrier Frequency Offset (CFO) and the Phase Estimation Error (PER).
Liu, X. +3 more
core +1 more source