Results 61 to 70 of about 47,824 (185)
An Efficient Multi‐Core DSP Power Management Controller
Engineering Reports, Volume 7, Issue 4, April 2025.This work proposes a power management controller for multi‐core DSP architectures, specifically designed for FT‐xDSP. The primary contributions include a clamp request control unit to ensure system stability during asynchronous resets, and a configurable state transition counter that optimizes clock transitions.
Jian Huang +4 more
wiley +1 more source
Revolutionary Ideas for Radio Regulation [PDF]
arXiv, 2003 Radio technology seems destined to become part of the standard micro-processor input/output system. But unlike for memory or display systems, for radio systems government regulation matters a lot. Much discussion of radio regulation has focused on narrow spectrum management and interference issues.
arxiv
Radio Science, Volume 60, Issue 4, April 2025.Abstract During daylight hours, the concentration of electrons in the ionosphere can be amplified by solar flares, which may subsequently influence the propagation of radio waves. Previous research on Very Low Frequency (VLF) signals focused on X‐class and M‐class flares.
Y. Liu, M. Füllekrug
wiley +1 more source
Radio Observations of 4079 Quasars [PDF]
, 1997 Using the NVSS radio catalog, we have searched for radio emission from 4079 quasars taken from the 1996 version of the Veron-Cetty and Veron (1996) quasar catalog. The comparison resulted in the positive detection of radio emission from 799 quasars. Of these, 168 are new radio detections.
arxiv +1 more source
Radio Continuum Emission from the Nuclei of Normal Galaxies [PDF]
Highlights of Astronomy, 1980 During the last few years detailed and sensitive observations of the radio emission from the nuclei of many normal spiral galaxies has become available. Observations from the Very Large Array (VLA) of the National Radio Astronomy Observatory (NRAO1), in particular, enable us to distinguish details on a scale of ≤100 pc for galaxies at distances less ...
openaire +2 more sources
The Magnetosphere‐Ionosphere‐Ground Responses to the May 2024 Super Solar Storm
Space Weather, Volume 23, Issue 4, April 2025.Abstract Earth suffered the attack of the strongest geomagnetic storm in the last 20 years (Kp = 9, Dst∼ ${\sim} $ −400 nT) occurred on 11 May 2024. Taking advantage of the LEO multi‐parameter CSES satellite (launched in 2018) with a large inclination angle 97° $97{}^{\circ}$, with the joint observations of NOAA and GOES, we present a comprehensive ...
Zhenxia Zhang +15 more
wiley +1 more source
Radio, optical and X-ray nuclei in nearby 3CRR radio galaxies [PDF]
, 1999 HST observations have shown that low-redshift 3CR radio galaxies often exhibit a point-like optical component positionally coincident with the GHz-frequency radio core. In this paper we discuss the correlation between the luminosities of the radio, optical and X-ray cores in these objects, and argue that all three components have a common origin at the
arxiv +1 more source
The Large-Scale Radio Continuum Structure of Spiral Galaxies [PDF]
Symposium - International Astronomical Union, 1978 This review concerns the large-scale structure of radio continuum emission in spiral galaxies (“the smooth background”), by which we mean the distribution of radio surface brightness at scales larger than, say, 1 kpc. Accordingly the nuclear emission and structure due to spiral arms and HII regions will not be a major topic of discussion here.
openaire +2 more sources
Respirology, Volume 30, Issue 4, Page 286-302, April 2025.ABSTRACT Underpinned by rigorous clinical trial data, the use of existing home sleep apnoea testing is now commonly employed for sleep disordered breathing diagnostics in most clinical sleep centres globally. This has been a welcome addition for the field given the considerable burden of disease, cost, and access limitations with in‐laboratory ...
Lucía Pinilla +2 more
wiley +1 more source
Revisit the fraction of radio-loud narrow line Seyfert 1 galaxies with LoTSS DR1 [PDF]
arXiv, 2020 Radio-Loud narrow-line Seyfert 1 galaxies (NLS1s), especially the extremely radio-loud ones, are widely accepted as the jetted versions of NLS1s. We explore the radio-loud fraction for NLS1s with recently released LoTSS DR1 at 150 MHz. The radio detection rate is about 28\% for LoTSS DR1.
arxiv