Results 1 to 10 of about 272,150 (85)

Metal ornaments from the burial mound necropolis Chornyanka of the Bilozerka culture (11th–10th centuries BC)

open access: yesІсторія науки і техніки, 2023
The flat cemetery near the village of Chornyanka, Kakhovka district, Kherson region, is one of the largest row grave fields of the Late Bronze Age archaeological culture of Bilozerka in the northern Black Sea region.
Tetiana Hoshko
doaj   +1 more source

Sub-wavelength visualization of near-field scattering mode of plasmonic nano-cavity in the far-field

open access: yesNanophotonics, 2023
Spatial visualization of mode distribution of light scattering from plasmonic nanostructures is of vital importance for understanding the scattering mechanism and applications based on these plasmonic nanostructures. A long unanswered question in how the
Jin Xiao   +12 more
doaj   +1 more source

The Smallest Particles in Saturn's A and C Rings [PDF]

open access: yes, 2013
Radio occultations of Saturn's main rings by spacecraft suggest a power law particle size-distribution down to sizes of the order of 1 cm (Marouf et al., 1983), (Zebker et al., 1985).
Harbison, Rebecca A.   +2 more
core   +1 more source

A model for vortex ring formation in a starting buoyant plume [PDF]

open access: yes, 2000
Vortex ring formation in a starting axisymmetric buoyant plume is considered. A model describing the process is proposed and a physical explanation based on the Kelvin–Benjamin variational principle for steady vortex rings is provided.
Gharib, Morteza, Shusser, Michael
core   +1 more source

A Simplified Free Vortex Wake Model of Wind Turbines for Axial Steady Conditions

open access: yesApplied Sciences, 2018
A simplified free vortex wake (FVW) model called the vortex sheet and ring wake (VSRW) model was developed to rapidly calculate the aerodynamic performance of wind turbines under axial steady conditions.
Bofeng Xu   +4 more
doaj   +1 more source

Sub-Atomic Resolution Crystal Structures Reveal Conserved Geometric Outliers at Functional Sites

open access: yesMolecules, 2019
Myelin protein 2 (P2) is a peripheral membrane protein of the vertebrate nervous system myelin sheath, having possible roles in both lipid transport and 3D molecular organization of the multilayered myelin membrane.
Saara Laulumaa, Petri Kursula
doaj   +1 more source

Lagrangian analysis of fluid transport in empirical vortex ring flows [PDF]

open access: yes, 2006
In this paper we apply dynamical systems analyses and computational tools to fluid transport in empirically measured vortex ring flows. Measurements of quasisteadily propagating vortex rings generated by a mechanical piston-cylinder apparatus reveal lobe
Dabiri, John O.   +2 more
core   +1 more source

Dynamics at the crystal-melt interface in a supercooled chalcogenide liquid near the glass transition. [PDF]

open access: yes, 2020
Direct quantitative measurements of nanoscale dynamical processes associated with structural relaxation and crystallization near the glass transition are a major experimental challenge.
Fluerasu, Andrei   +7 more
core   +1 more source

Dynamical Effects of Nuclear Rings in Disk Galaxies [PDF]

open access: yes, 1996
We investigate the dynamical response of stellar orbits in a rotating barred galaxy potential to the perturbation by a nuclear gaseous ring. The change in 3D periodic orbit families is examined as the gas accumulates between the inner Lindblad resonances.
Heller, C. H., Shlosman, I.
core   +2 more sources

Dynamics of Barred Galaxies [PDF]

open access: yes, 1993
Some 30% of disc galaxies have a pronounced central bar feature in the disc plane and many more have weaker features of a similar kind. Kinematic data indicate that the bar constitutes a major non-axisymmetric component of the mass distribution and that ...
A Wilkinson   +212 more
core   +3 more sources

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