Results 21 to 30 of about 5,281,681 (332)

RECONSTRUCTION OF CHANGES IN STRATOSPHERIC OZONE IN THE TAIGA FORESTS BASED OF THE SINGULAR SPECTRAL ANALYSIS

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2022
The relevance. The problem of reducing the level of stratospheric ozone and the interest in its past changes are associated with the increase in the dose of ultraviolet radiation in the short-wave range reaching the Earth's surface.
Vladimir V. Zuev   +2 more
doaj   +1 more source

Smarandache rings [PDF]

open access: yes, 2002
Over the past 25 years, I have been immersed in research in Algebra and more particularly in ring theory. I embarked on writing this book on Smarandache rings (Srings) specially to motivate both ring theorists and Smarandache algebraists to develop and ...
Vasantha, Kandasamy
core   +1 more source

Occurrence of annual growth rings in Rhizophora mangle in a region with low climate seasonality

open access: yesAnais da Academia Brasileira de Ciências, 2016
The formation of annual growth rings has been confirmed for several mangrove species in the last decade, among which is the Rhizophora mangle. However, the record of annual rings for this species was made in a region with high hydric seasonality, a ...
BRUNNA T. SOUZA   +3 more
doaj   +1 more source

Neutrosophic Rings I [PDF]

open access: yes, 2011
In this paper, we present some elementary properties of neutrosophic rings. The structure of neutrosophic polynomial rings is also presented. We provide answers to the questions raised by Vasantha Kandasamy and Florentin Smarandache in [1] concerning ...
Oyebola O.Y.   +2 more
core   +1 more source

Smarandache near-rings [PDF]

open access: yes, 2002
The main concern of this book is the study of Smarandache analogue properties of near-rings and Smarandache near-rings; so it does not promise to cover all concepts or the proofs of all ...
Vasantha, Kandasamy
core   +1 more source

Age, growth rate, and otolith growth of polar cod (Boreogadus saida) in two fjords of Svalbard, Kongsfjorden and Rijpfjorden

open access: yesOceanologia, 2017
This work presents biological information for polar cod (Boreogadus saida) collected with a Campelen 1800 shrimp bottom trawl in Kongsfjorden (two stations located in the inner part of the fjord adjacent to the glacier) and Rijpfjorden (one station at ...
Dariusz P. Fey, Jan M. Węsławski
doaj   +1 more source

Cutting tree rings into time slices: How intra-annual dynamics of wood formation help decipher the space-for-time conversion.

open access: yesNew Phytologist, 2021
Tree-ring anatomy, microdensity and isotope records provide valuable intra-annual information. However, extracting signals at that scale is challenged by the complexity of xylogenesis, where two major processes, cell enlargement and wall thickening ...
Gonzalo Pérez-de-Lis   +3 more
semanticscholar   +1 more source

Neutrosophic Rings II [PDF]

open access: yes, 2012
This paper is the continuation of the work started in [12]. The present paper is devoted to the study of ideals of neutrosophic rings.
Adeleke E.O   +2 more
core   +1 more source

Formation of Annual Ring Eccentricity in Coarse Roots within the Root Cage of Pinus ponderosa Growing on Slopes

open access: yesPlants, 2020
The coarse roots of Pinus ponderosa included in the cage are the ones most involved in tree stability. This study explored the variations in traits, such as volume, cross-sectional area, and radius length of cage roots, and used those data to develop a ...
Antonio Montagnoli   +6 more
doaj   +1 more source

Smarandache Non-Associative (SNA-) rings [PDF]

open access: yes, 2005
In this paper we introduce the concept of Smarandache non-associative rings, which we shortly denote as SNA-rings as derived from the general definition of a Smarandache Structure (i.e., a set A embedded with a week structure W such that a proper subset ...
Vasantha Kandasamy, W.B.
core   +1 more source

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