Results 51 to 60 of about 3,187 (174)
Switchable Bandpass/Bandstop Filter Using Liquid Metal Alloy as Fluidic Switch
Sensors, 2019 In this paper, we propose a switchable band-pass/band-stop filter using liquid metal alloy as a fluidic switch. The filter is designed based on the Chebyshev response and implemented using a three-stage quarter-wavelength resonant structure.
Eiyong Park, Minjae Lee, Sungjoon Lim
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Topological and geometric signatures of brain network dynamics in Alzheimer's disease
Alzheimer's &Dementia, Volume 21, Issue 8, August 2025.Abstract INTRODUCTION This study explores magnetic resonance imaging (MRI) as a promising non‐invasive approach to monitor Alzheimer's disease (AD) and related dementias. We investigate whether dynamic functional connectivity (dFC), which captures time‐varying neural interactions, can reveal sex‐specific brain network disruptions in AD that ...
Luopeiwen Yi +4 more
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Human Brain Mapping, Volume 46, Issue 11, 01 August 2025.ABSTRACT Menstrual‐related migraine (MRM) is a neurovascular disorder associated with decreased sex hormone levels. The menstrual cycle influences both cerebrovascular function and functional brain connectivity, with accumulating evidence linking migraine to altered connectivity, particularly in the insula.
Xinyu Li +7 more
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The Novel Microwave Stop-Band Filter
Active and Passive Electronic Components, 2008 The stop-band filter with the new band-rejection element is proposed. The element is a coaxial waveguide with the slot in the centre conductor. In the frame of this research, the numerical and experimental investigations of the amplitude-frequency ...
R. E. Chernobrovkin +4 more
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A Novel Circuit Topology for the Implementation of a 2nd order Chebyshev Type-II Low Pass Filter with Independent Frequency and Gain Tuning [PDF]
, 2023 Prathamesh Rane, Immanuel Raja
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Functionally Adaptive Structural Basis Sets of the Brain: A Dynamic Fusion Approach
Human Brain Mapping, Volume 46, Issue 11, 01 August 2025.The dynamic fusion of multimodal neuroimaging data is a method for studying time‐varying structure–function coupling in the brain. We show evidence of brain organization along a spectrum of highly static to highly dynamic structure–function coupling, which largely falls along unimodal/transmodal hierarchical lines.
Marlena Duda +9 more
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ESP32 and MAX30100 with Chebyshev Filter for Enhanced Heart and Oxygen Measurement
Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi)Health monitoring is important in the technology and information era. A health monitoring device must possess high accuracy in monitoring an individual's health.
Magfirawaty Magfirawaty +4 more
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physica status solidi (b), Volume 262, Issue 8, August 2025.Bulk rutile GeO2 single crystals of 5–15 mm in diameter are grown by the top‐seeded solution growth. Among different dopants, Sb5+ is a very efficient n‐type donor enabling free electron concentrations above 1020 cm−3. Prepared wafers show full width at half maximum values of rocking curves below 30 arcsec and root mean square roughness of 0.15 nm. The
Zbigniew Galazka +17 more
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Journal of Geophysical Research: Oceans, Volume 130, Issue 8, August 2025.Abstract This study examines the interplay between water column structure, tidal currents, and basal melting at a site beneath Ronne Ice Shelf, using a 3‐year data set of oceanographic measurements, and a collocated year‐long time series of radar‐derived melt rate estimates.
J. Anselin +5 more
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Improved Least Squares Phase Unwrapping Method Based on Chebyshev Filter
Applied SciencesPhase unwrapping of high phase noise and steep phase gradient has always been a challenging problem in interferometric synthetic aperture radar (InSAR), in which case the least squares (LS) phase unwrapping method often suffers from significant ...
Guoqing Li, Yake Li, Wenyan Liu
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