Results 31 to 40 of about 2,125,373 (284)

Corner reflector tag with RCS frequency coding by dielectric resonators

open access: yesIET Microwaves, Antennas & Propagation, 2021
For a novel indoor‐localization system, chipless tags with high retro‐directive radar cross‐section (RCS) under wide‐angle incidence are required as fixed landmarks.
Ali Alhaj Abbas   +4 more
doaj   +1 more source

2–D Lossless FIR Filter Design Using Synthesis of the Paraunitary Transfer Function Matrix

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2023
A synthesis method for designing two-dimensional lossless finite impulse response (FIR) filters for various digital signal processing tasks is proposed.
Wawryn Krzysztof, Poczekajło Paweł
doaj   +1 more source

Experimental Investigation of Terahertz Scattering: A Study of Non-Gaussianity and Lateral Roughness Influence

open access: yesIEEE Access, 2020
The scattering phenomenon caused by rough surfaces has a dominant role in shaping the reflected field at terahertz (THz) frequencies, both in specular and non-specular directions. Most surfaces in nature are randomly rough, and the surface height obeys a
Mai Alissa   +4 more
doaj   +1 more source

Signal processing challenges for digital holographic video display systems

open access: yesSignal processing. Image communication, 2019
Holography is considered to be the ultimate display technology since it can account for all human visual cues such as stereopsis and eye focusing. Aside from hardware constraints for building holographic displays, there are still many research challenges
David Blinder   +7 more
semanticscholar   +1 more source

Harmonic FMCW Radar System: Passive Tag Detection and Precise Ranging Estimation

open access: yesSensors
This paper details the design and implementation of a harmonic frequency-modulated continuous-wave (FMCW) radar system, specialized in detecting harmonic tags and achieving precise range estimation.
Ahmed El-Awamry   +3 more
doaj   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Reliability Analysis of Centralized Radio Access Networks in Non-Line-of-Sight and Line-of-Sight Scenarios

open access: yesIEEE Access, 2019
The fifth generation (5G) wireless network technology is set to be standardized by 2020, where the main goals are to improve capacity, reliability, and energy efficiency while reducing latency and massively increasing connection density.
Daniel Peethala   +2 more
doaj   +1 more source

Real‐time capable multiple‐input–multiple‐output SONAR systems—An algorithmic approach

open access: yesIET Radar, Sonar & Navigation, 2021
In recent years, significant effort has been allocated to research on multiple‐input–multiple‐output (MIMO) sound navigation and ranging (SONAR) and RADAR systems.
Thorben Kaak   +2 more
doaj   +1 more source

Digital currency forecasting with chaotic meta-heuristic bio-inspired signal processing techniques

open access: yesChaos, Solitons & Fractals, 2019
The price forecasting of the digital currencies in the financial market is of great importance, especially after the recent global economic crises.
Aytaç Altan, S. Karasu, S. Bekiros
semanticscholar   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

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