Results 31 to 40 of about 713,794 (291)

Lucas’S Inner Circles

open access: yes, 2016
In this article, we define the Lucas’s inner circles and we highlight some of their properties.
Patrascu, Ion, Smarandache, Florentin
openaire   +1 more source

Integrability of invariant metrics on the diffeomorphism group of the circle

open access: yes, 2006
Each H^k Sobolev inner product defines a Hamiltonian vector field X_k on the regular dual of the Lie algebra of the diffeomorphism group of the circle.
Constantin, Adrian, Kolev, Boris
core   +3 more sources

Looking under Kachru's (1982, 1985) three circles model of World Englishes: the hidden reality and current challenges

open access: yesRevista Brasileira de Linguística Aplicada, 2014
This paper examines the pioneering model of World Englishes formulated by Kachru in the early 1980s that allocates the presence of English into three concentric circles: first of all, the inner circle (Great Britain, the USA) where the language functions
John Robert Schmitz
doaj   +3 more sources

inner circle of presidents

open access: yesEstudios Internacionales, 2023
Who belongs to the inner circle of presidents remains understudied. Preceding research has mostly focused on advisors and ministers separately, and has not integrated other groups who also influence presidents. I argue that families, advisors, and ministers are members of the inner circle of presidents and support the leaders’ affective, intellectual ...
openaire   +1 more source

Genus Ranges of Chord Diagrams

open access: yes, 2014
A chord diagram consists of a circle, called the backbone, with line segments, called chords, whose endpoints are attached to distinct points on the circle.
Jonathan Burns   +3 more
core   +1 more source

Numerical simulation on the thermal performance enhancement of energy storage tank with phase change materials

open access: yesJournal of Thermal Science and Technology, 2019
The model of the energy storage tank based on multiple tubes with phase change material was established. The influence of the tube circle diameter and the inner annulus temperature on the heat storage performance of the tube bundle in the concentric ...
Yang TIAN, Ming ZHAO
doaj   +1 more source

PENGARUH PEMBELAJARAN KOOPERATIF TIPE INNER CIRCLE OUT CIRCLE TERHADAP KEMAMPUAN PEMAHAMAN MATEMATIS SISWA SEKOLAH MENENGAH PERTAMA [PDF]

open access: yes, 2016
Deviana Rianty. Pengaruh Pembelajaran Kooperatif Tipe Inner Circle Out Circle terhadap Kemampuan Pemahaman Matematis Siswa Sekolah Menengah Pertama.
DEVIANA RIANTY, . 125050107
core  

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

ABOUT ONE PROBLEM ON EXTREMAL DECOMPOSITION

open access: yesПроблемы анализа, 2021
In the paper, we consider an open problem of finding the maximum of product of inner radii of mutually non-overlapping domains with respect to the points of the unit circle on a certain positive degree 𝛾 of the inner radius of the domain with respect to ...
Ya. Zabolotnii,, I. Denega
doaj   +1 more source

Analysis and Definition of the close-to-crop Area in Relation to Robotic Weeding [PDF]

open access: yes, 2004
The objective of this paper is to analyse and define the field conditions close to the crop plants of sugar beet (Beta vulgaris L.). The aim is to use this study for the choice and development of new physical weeding methods to target weeds at individual
Griepentrog, Hans W.   +1 more
core  

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