Results 51 to 60 of about 399 (175)
Optical Activity and Phase Transformations in γ/β Ga2O3 Bilayers Under Annealing
Advanced Optical Materials, Volume 12, Issue 29, October 15, 2024.The polymorphic Ga2O3 structures consisting of the cubic defective spinel (γ) film on the top of the monoclinic (β) substrate are fabricated by disorder‐induced ordering. A two‐stage annealing kinetics is demonstrated in such bilayers associated with the epitaxial γ‐to‐β regrowth at the interface at temperatures below 700 °C and a non‐planar γ‐to‐β ...
Alexander Azarov +6 more
wiley +1 more source
A characterization of isochronous centres in terms of symmetries [PDF]
, 2000 We present a description of isochronous centres of planar vector fields $X$ by means of their groups of symmetries. More precisely, given a normalizer $U$ of $X$ (i.e., $[X,U]=\mu X$, where $\mu$ is a scalar function), we provide a necessary and ...
Freire, Emilio +2 more
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Basin Research, Volume 36, Issue 4, July–August 2024.Spatiotemporal evolution of the Nile delta during the Pliocene‐Quaternary. This study provide the first well record of the 100 s‐m‐thick Plio‐Quaternary deep Levant Basin section. This paper shows that Sand–shale ratio inferred from Gamma Ray logs illustrates changes in terrigenous supply into the Levant basin.
Ido Sirota +2 more
wiley +1 more source
Two inverse problems for analytic potential systems [PDF]
, 2008 In this paper, we solve a basic problem about the existence of an analytic potential with a prescribed period function. As an application, it is shown how to extend to the whole phase plane an arbitrary potential defined on a semiplane in order to get ...
F Mañosas +3 more
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Isochron translation and a geological criterion to declare an isochron
Journal of the Geological Society of Sri Lanka, 2020 Isochron is an equal-age line for measured present-day parent and daughter isotopic ratios of co-genetic minerals and rocks plotted on an isochron diagram. Isochrons provide ages and initial isotopic ratios of the samples useful to understand their geological evolution. However, the statistical criterion used to declare an isochron cannot guarantee the
openaire +2 more sources
Language and Linguistics Compass, Volume 18, Issue 2, March/April 2024.Abstract While many theoretical proposals about the relationship between language and music processing have been proposed over the past 40 years, recent empirical advances have shed new light on this relationship. Many features are shared between language and music, inspiring research in the fields of linguistic theory, systematic musicology, and ...
Katerina Drakoulaki +4 more
wiley +1 more source
On the Period Function of Liénard Systems [PDF]
, 1999 We study the period functionTof a centerOof a Liénard system. A sufficient condition for the monotonicity ofT, or for the isochronicity ofO, is given. Such a condition is also necessary whenfandgare analytic, andgis odd.
Sabatini, M.
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Linearization of Isochronous Centers
Journal of Differential Equations, 1995 The authors propose a unified technique for the study of the isochronicity of polynomial systems. They first construct the linearizing changes of coordinates for isochronous systems having rational first integrals, namely for quadratic systems, for cubic systems symmetric with respect to a center and for reduced Kukles systems.
Mardesic, P., Rousseau, C., Toni, B.
openaire +2 more sources
NMR in Biomedicine, Volume 37, Issue 3, March 2024.HOBS and PSYCHE are robust and easy to implement pure shift (PS) experiments to identify metabolites in urine and serum. Strong coupling artefacts contain latent connectivity information that can be used to enhance metabolite identification. PS experiments can be included in metabolite identification workflows, providing additional capability for ...
Jose Ivan Serrano‐Contreras +5 more
wiley +1 more source
Isochronicity conditions for some real polynomial systems
, 2008 26 pagesThis paper focuses on isochronicity of linear center perturbed by a polynomial. Isochronicity of a linear center perturbed by a degree four and degree five polynomials is studied, several new isochronous centers are found.
Boussaada, Islam
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