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   Articles with "frequency bands" as a keyword



Abnormal amygdala functional connectivity and deep learning classification in multifrequency bands in autism spectrum disorder: A multisite functional magnetic resonance imaging study

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recommendations! Published in 2022 at "Human Brain Mapping"

DOI: 10.1002/hbm.26141

Abstract: Previous studies have explored resting‐state functional connectivity (rs‐FC) of the amygdala in patients with autism spectrum disorder (ASD). However, it remains unclear whether there are frequency‐specific FC alterations of the amygdala in ASD and whether… read more here.

Keywords: slow frequency; frequency; frequency bands; deep learning ... See more keywords

Influence of attention and bolus volume on brain organization during swallowing

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recommendations! Published in 2017 at "Brain Structure and Function"

DOI: 10.1007/s00429-017-1535-7

Abstract: It has been shown that swallowing involves certain attentional and cognitive resources which, when disrupted can influence swallowing function with in dysphagic patient. However, there are still open questions regarding the influence of attention and… read more here.

Keywords: frequency bands; frequency; attention; bolus volume ... See more keywords

Size-dependent frequency bands in the ferromagnetic resonance of a Fe-nanocube

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recommendations! Published in 2017 at "Journal of Magnetism and Magnetic Materials"

DOI: 10.1016/j.jmmm.2017.04.065

Abstract: Abstract Using full micromagnetic simulations we calculate the spectra of ferromagnetic resonance (FMR) for an iron (core-shell) nanocube and show that the FMR characteristics are strongly size dependent. For instance, for a 40 nm it is… read more here.

Keywords: dependent frequency; frequency bands; size dependent; ferromagnetic resonance ... See more keywords

Acoustic-level and language-specific processing of native and non-native phonological sequence onsets in the low gamma and theta-frequency bands

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recommendations! Published in 2022 at "Scientific Reports"

DOI: 10.1038/s41598-021-03611-2

Abstract: Acoustic structures associated with native-language phonological sequences are enhanced within auditory pathways for perception, although the underlying mechanisms are not well understood. To elucidate processes that facilitate perception, time–frequency (T–F) analyses of EEGs obtained from… read more here.

Keywords: frequency bands; theta frequency; language specific; language ... See more keywords

An octa-band planar monopole antenna for portable communication devices

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recommendations! Published in 2021 at "Scientific Reports"

DOI: 10.1038/s41598-021-94753-w

Abstract: Due to the rapid development of wireless communication systems, good numbers of services and devices use different frequency bands and protocols. To concurrently cover all these services, the antenna in communication devices should operate over… read more here.

Keywords: frequency bands; communication devices; mhz; communication ... See more keywords
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Empirical Frequency Band Analysis of Nonstationary Time Series

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recommendations! Published in 2020 at "Journal of the American Statistical Association"

DOI: 10.1080/01621459.2019.1671199

Abstract: Abstract The time-varying power spectrum of a time series process is a bivariate function that quantifies the magnitude of oscillations at different frequencies and times. To obtain low-dimensional, parsimonious measures from this functional parameter, applied… read more here.

Keywords: frequency bands; time series; frequency; time ... See more keywords

System Design and Calibration for Wideband Channel Sounding With Multiple Frequency Bands

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recommendations! Published in 2017 at "IEEE Access"

DOI: 10.1109/access.2017.2649679

Abstract: This paper presents a multiple frequency bands-switching scheme for wideband channel sounding, which is able to extend the overall sounding bandwidth without changing operation bandwidth of the hardware. It is especially suitable for low mobility… read more here.

Keywords: frequency; multiple frequency; frequency bands; wideband channel ... See more keywords

A New Class of Components for Simultaneous Power Splitting Over Microwave and Millimeter-Wave Frequency Bands

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recommendations! Published in 2018 at "IEEE Access"

DOI: 10.1109/access.2017.2759961

Abstract: The co-existence of the microwave and millimeter-wave technologies becomes the inexorable trend of the future wireless communication systems. The corresponding components within the system are required to cover these two frequency bands simultaneously. But the… read more here.

Keywords: frequency bands; frequency; wave frequency; millimeter wave ... See more keywords

A Compact LTCC Decoupling-Network Based on Coupled-Resonator for Antenna Interference Suppression of Adjacent Frequency Bands

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recommendations! Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2019.2900248

Abstract: A low-temperature co-fired ceramic (LTCC) coupled resonator decoupling network (CRDN) with asymmetric input/output (I/O) couplings for suppressing interference between two adjacent frequency bands is proposed in this paper. Based on LTCC multilayer technology, a second-order… read more here.

Keywords: adjacent frequency; decoupling network; coupled resonator; frequency bands ... See more keywords

Design of a Beamforming Tri-Band Rectifier for RF Energy Harvesting

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recommendations! Published in 2025 at "IEEE Access"

DOI: 10.1109/access.2025.3544146

Abstract: Ambient RF energy is considered as one of the most promising resources for powering low-power electronics, especially in IoT and wireless sensor network applications. One of the most significant challenges in RF energy harvesting is… read more here.

Keywords: frequency bands; power; energy; tri band ... See more keywords

Quad-Band Quasi-Isotropic Antenna for Massive IoT of 6G

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recommendations! Published in 2025 at "IEEE Internet of Things Journal"

DOI: 10.1109/jiot.2025.3590584

Abstract: Quasi-isotropic antennas are essential to the massive Internet of Things (IoT) of 6G for mobile smart devices, such as uncrewed aerial vehicle (UAV)/uncrewed ground vehicle (UGV) and smart glasses. However, until now, present quasi-isotropic antennas… read more here.

Keywords: isotropic; quasi isotropic; frequency bands; massive iot ... See more keywords