Results 1 to 10 of about 66,644 (262)
Statistical age determination of tree rings.
PLoS ONE, 2020 Dendrochronology, the study of annual rings formed by trees and woody plants, has important applications in research of climate and environmental phenomena of the past.
Martin Ricker +3 more
doaj +4 more sources
Growth Rings, Growth Ring Formation and Age Determination in the Mangrove Rhizophora mucronata [PDF]
Annals of Botany, 2004 The mangrove Rhizophora mucronata has previously been reported to lack annual growth rings, thus barring it from dendrochronological studies. In this study the reported absence of the growth rings was reconsidered and the periodic nature of light and dark brown layers visible on polished stem discs investigated.
Nico Koedam +2 more
exaly +4 more sources
The Age and Origin of Saturn’s Rings
Space Science ReviewsAbstract The origin of Saturn’s rings is a long standing mystery in planetary science, for which the age of this system is a critical constraint. After having clarified what the age of the rings may mean, this article reviews several aspects of this question.
Paul Estrada +2 more
exaly +2 more sources
THE FIRST REPORT OF ABNORMAL AGE RINGS IN OTOLITHS LAPILLUS OF ARIIDS CATFISH
Boletim do Instituto de Pesca, 2021 The present work aimed to record the first presence of abnormal age rings in Cathorops spixii lapillus otoliths from Cananeia-Iguape Estuarine-Lagoon Complex (CIELC), Southern region of Brazilian coast. In August 2018, 59 specimens of C.
Igor Souza de MORAIS +1 more
doaj +3 more sources
The Milky Way’s middle-aged inner ring [PDF]
Astronomy & Astrophysics, 2022 Aims. We investigate the metallicity, age, and orbital anatomy of the inner Milky Way, specifically focussing on the outer bar region. Methods. We integrated a sample of APOGEE DR16 inner Galaxy stars in a state of the art bar-bulge potential with a slow pattern speed and investigated the link between the resulting orbits and their [Fe/H] and ages.
Shola M. Wylie +2 more
openaire +3 more sources
Age of Gossip on Generalized Rings
MILCOM 2023 - 2023 IEEE Military Communications Conference (MILCOM), 2023 We consider a gossip network consisting of a source forwarding updates and $n$ nodes placed geometrically in a ring formation. Each node gossips with $f(n)$ nodes on either side, thus communicating with $2f(n)$ nodes in total. $f(n)$ is a sub-linear, non-decreasing and positive function. The source keeps updates of a process, that might be generated or
Arunabh Srivastava, Sennur Ulukus
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First record of growth rings for 11 native subtropical anuran species of South America [PDF]
Anais da Academia Brasileira de Ciências, 2019 : Skeletochronology is the most accurate method to estimate a population age structure. The methodology is based on the analysis of secondary bone tissue in order to count growth rings.
AMANDA J.C. BRUM +3 more
doaj +1 more source
PLoS ONE, 2021 The origins of money and the formulation of coherent weight and measurement systems are amongst the most significant prehistoric developments of the human intellect.
Maikel H G Kuijpers, Cătălin N Popa
doaj +1 more source
Predicting circuit aging using ring oscillators [PDF]
2014 19th Asia and South Pacific Design Automation Conference (ASP-DAC), 2014 This paper presents a method for inferring circuit delay shifts due to bias temperature instability using ring oscillator (ROSC) sensors. This procedure is based on presilicon analysis, postsilicon ROSC measurements, a new aging analysis model called the Upperbound on fMax (UofM), and a look-up table that stores a precomputed degradation ratio that ...
Deepashree Sengupta +1 more
openaire +1 more source
Frontiers in Earth Science, 2023 A rare study on the quantitative relationship between the energetic impact of debris flows on the intensity and duration of growth disturbances of tree rings was carried out, partly due to a lack of feasible approaches and detailed field evidence.
Xueliang Wang +15 more
doaj +1 more source