Results 111 to 120 of about 553,679 (277)

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

Elliptical Galaxy Dynamics: The Issues Pertaining to Galaxy Formation [PDF]

open access: yesarXiv, 1999
How elliptical galaxy dynamics relate to galaxy structure, stellar populations, spiral galaxies and environment are reviewed. The evidence assembled shows that most, if not all, galaxies originally classified as gE contain disks within them. Taken together, the existing evidence are most consistent with the gravitational, hierarchical, clustering ...
arxiv  

Clusters and superclusters of galaxies [PDF]

open access: yesarXiv, 1996
Rich clusters of galaxies are the most massive virialized systems known. Even though they contain only a small fraction of all galaxies, rich clusters provide a powerful tool for the study of galaxy formation, dark matter, large-scale structure, and cosmology.
arxiv  

Vision at high latitudes: High sensitivity without specific boreal adaptations in photoreception in reindeer (Rangifer tarandus L.)

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The light climate at high latitudes, in particular the extended twilight of winter and the reduced diel variation in light level in midsummer and midwinter, potentially constrains visual function and the synchronisation of temporal organisation in polar species. In this
Nicholas J. C. Tyler   +3 more
wiley   +1 more source

From cities to refuges for pollinators: Urban practices for enhancing pollinator habitats in changing landscapes

open access: yesJournal of Applied Ecology, EarlyView.
A framework for the support of pollinators in urban areas is developed here, based on five pillars: nesting, flower resources, artificial support, management and society acceptance, with additional key elements from science and society. Society should incorporate strategies for pollinators as in this framework by means of co‐planning with stakeholders,
Rosa Ranalli   +3 more
wiley   +1 more source

High-precision Galaxy Clustering Predictions from Small-volume Hydrodynamical Simulations via Control Variates

open access: yesThe Astrophysical Journal
Cosmological simulations of galaxy formation are an invaluable tool for understanding galaxy formation and its impact on cosmological parameter inference from large-scale structures.
Alexandra Doytcheva   +2 more
doaj   +1 more source

Gut Mycobiota of Three Rhinopithecus Species Provide New Insights Into the Association Between Diet and Environment

open access: yesIntegrative Zoology, EarlyView.
This study revealed the basic structures of gut mycobiota of three wild Rhinopithecus species. The gut mycobiota of Rhinopithecus showed close connection with their feeding habits, and there were associations between gut mycobiota and the host's living environments.
Xuanyi Yang   +6 more
wiley   +1 more source

Deciphering Gas Dynamics and Star Formation in a z = 1.1 Main-sequence Spiral Galaxy with ALMA and JWST

open access: yesThe Astrophysical Journal
We present a joint analysis of high-resolution CO(2–1) and Paschen- α (Pa α ) emission lines to trace gas dynamics and spatially resolved star formation in ASPECS-LP.3 mm.06, a z = 1.1 main-sequence galaxy.
Zhaoran Liu   +8 more
doaj   +1 more source

Numerical models of galaxies - I. The variability of spiral structure [PDF]

open access: bronze, 1978
Robert H. Berman   +2 more
openalex   +1 more source

Home - About - Disclaimer - Privacy