Results 11 to 20 of about 9,799,487 (341)
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.
Verheyden, Anouk +3 more
openaire +4 more sources
Protoplanetary Disk Rings and Gaps across Ages and Luminosities [PDF]
The Astrophysical Journal, 2019 Abstract Since the discovery of the multiring structure of the HL Tau disk, ALMA data suggest that the dust continuum emission of many, if not all, protoplanetary disks consists of rings and gaps, no matter their spectral type or age. The origin of these gaps so far remains unclear.
Van Der Marel, Nienke +4 more
openaire +5 more sources
Age of Gossip in Ring Networks in the Presence of Jamming Attacks [PDF]
Asilomar Conference on Signals, Systems and Computers, 2022 We consider a system with a source which maintains the most current version of a file, and a ring network of $n$ user nodes that wish to acquire the latest version of the file.
Priyanka Kaswan, S. Ulukus
semanticscholar +1 more source
Health Benefits of Quercetin in Age-Related Diseases
Molecules, 2022 Polyphenols are the known group of phytochemicals that essentially consists of phenolic rings. These are the plant product present in varied fruits and vegetables. These secondary metabolites perform a protective function in plants from environmental and
Deepika, P. K. Maurya
semanticscholar +1 more source
The IntCal20 Northern Hemisphere Radiocarbon Age Calibration Curve (0–55 cal kBP)
Radiocarbon: An International Journal of Cosmogenic Isotope Research, 2020 Radiocarbon (14C) ages cannot provide absolutely dated chronologies for archaeological or paleoenvironmental studies directly but must be converted to calendar age equivalents using a calibration curve compensating for fluctuations in atmospheric 14C ...
P. Reimer +41 more
semanticscholar +1 more source
On utilization of elliptical rings in assessing cracking tendency of concrete [PDF]
, 2014 A new experimental method by utilizing elliptical rings to replace circular rings recommended by ASTM and AASHTO was explored for assessing cracking potential of concrete and other cement-based materials under restrained condition.
Dong, W, Oladiran, OG, Zhou, X
core +3 more sources
Acta Botânica Brasílica, 2016 The tree Piptadenia gonoachantha is widely used in forestry and in forest restoration projects, which require methods for evaluating tree growth. Long-term studies are necessary to determine patterns and detect changes in species growth rhythms.
Arno Fritz das Neves Brandes +3 more
doaj +1 more source
Some relational structures with polynomial growth and their associated algebras II: Finite generation [PDF]
, 2018 The profile of a relational structure $R$ is the function $\varphi_R$ which counts for every integer $n$ the number, possibly infinite, $\varphi_R(n)$ of substructures of $R$ induced on the $n$-element subsets, isomorphic substructures being identified ...
Pouzet, Maurice, Thiéry, Nicolas M.
core +4 more sources
Intermediate-age stars as the origin of low stellar velocity dispersion nuclear rings: the case of Mrk 1157 [PDF]
, 2011 We have used the Gemini Near-Infrared Integral-Field Spectrograph to map the age distribution of the stellar population in the inner 400 pc of the Seyfert 2 galaxy Mrk 1157 (NGC 591), at a spatial resolution of 35 pc.
R. Riffel +3 more
semanticscholar +1 more source
Acta Natura et Scientia, 2021 In this study, surface morphology and chemical structure of Pagrus pagrus (Linnaeus 1758) sagittal otolith from the shores of Gizli liman to Kefalos Cape in the north of Gökçeada Island, Turkey were investigated using scanning electron microscopy (SEM ...
Bayram Kızılkaya +3 more
doaj +1 more source