Results 211 to 220 of about 509,719 (323)

A Model of a Spiral Galaxy [PDF]

open access: bronze, 1951
G. C. Mevittie, C. Payne-Gaposchkin
openalex   +1 more source

Resource allocation for integrated satellite‐terrestrial networks based on RSMA

open access: yesIET Communications, EarlyView.
We first establish a downlink transmission framework for the integrated satellite‐terrestrial network based on RSMA, to achieve high data rate transmission of virtual reality applications globally. Then, considering some practical constraints, a joint resource allocation problem of rate and transmission power is formulated.
Jianfeng Shi   +3 more
wiley   +1 more source

Correlations between IR Luminosity, Star Formation Rate, and CO Luminosity in the Local Universe

open access: yesGalaxies
We exploit the DustPedia sample of galaxies within approximately 40 Mpc, selecting 388 sources, to investigate the correlations between IR luminosity (LIR), the star formation rate (SFR), and the CO(1-0) luminosity (LCO) down to much lower luminosities ...
Matteo Bonato   +7 more
doaj   +1 more source

Machine learning approach of multi‐RAT selection for travelling users in 5G NSA networks

open access: yesIET Networks, EarlyView.
The authors present RAT selection algorithm for efficient resource allocation for public bus travelling user(s), utilising live data from multiple 5G NSA base stations. Models of the supervised machine learning algorithms: SVM, DNN and XGBoost were deployed for implementation to predict or select the appropriate RAT between 4G and 5G RATs.
Nurudeen O. Salau   +2 more
wiley   +1 more source

An Empirical Consistent Redshift Bias: A Possible Direct Observation of Zwicky’s TL Theory

open access: yesParticles
Recent advancements have shown tensions between observations and our current understanding of the Universe. Such observations may include the H0 tension and massive galaxies at high redshift that are older than traditional galaxy formation models have ...
Lior Shamir
doaj   +1 more source

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