Results 21 to 30 of about 48,926 (111)

An experimental study of unsteady hydrodynamics of a single scull [PDF]

open access: yes, 2011
The effect of hull dynamics on the hydrodynamic performance of a single scull is investigated via a combination of field trials and tank tests. The location of laminar-turbulent transition in unsteady flow is explored via several series of hot-film ...
Campbell, Ian   +3 more
core   +2 more sources

Gravitational Radiation from Plunging Orbits - Perturbative Study - [PDF]

open access: yes, 2008
Numerical relativity has recently yielded a plethora of results about kicks from spinning mergers which has, in turn, vastly increased our knowledge about the spin interactions of black hole systems.
Jeandrew Brink   +6 more
core   +2 more sources

A toy model of the five-dimensional universe with the cosmological constant

open access: yes, 2004
A value of the cosmological constant in a toy model of the five-dimensional universe is calculated in such a manner that it remains in agreement with both astronomical observations and the quantum field theory concerning the zero-point fluctuations of ...
't Hooft G.   +35 more
core   +1 more source

Stability of self-gravitating magnetic monopoles [PDF]

open access: yes, 2000
The stability of a spherically symmetric self-gravitating magnetic monopole is examined in the thin wall approximation: modeling the interior false vacuum as a region of de Sitter space; the exterior as an asymptotically flat region of the Reissner ...
A. Goldhaber   +30 more
core   +2 more sources

Chromosome Oscillations in Mitosis [PDF]

open access: yes, 2005
Successful cell division requires a tight regulation of chromosome motion via the activity of molecular motors. Many of the key players at the origin of the forces generating the movement have been identified, but their spatial and temporal organization ...
A. P. Joglekar   +8 more
core   +2 more sources

On the magnetism and dynamics of prominence legs hosting tornadoes

open access: yes, 2016
Solar tornadoes are dark vertical filamentary structures observed in the extreme ultraviolet associated with prominence legs and filament barbs. Their true nature and relationship to prominences requires understanding their magnetic structure and dynamic
Arregui, I.   +5 more
core   +1 more source

Multiwavelength studies of MHD waves in the solar chromosphere: An overview of recent results [PDF]

open access: yes, 2015
The chromosphere is a thin layer of the solar atmosphere that bridges the relatively cool photosphere and the intensely heated transition region and corona. Compressible and incompressible waves propagating through the chromosphere can supply significant
A. Andić   +429 more
core   +2 more sources

Interatomic Coulombic Decay following Photoionization of the Helium Dimer: Observation of Vibrational Structure [PDF]

open access: yes, 2010
Using synchrotron radiation we simultaneously ionize and excite one helium atom of a helium dimer (He_2) in a shakeup process. The populated states of the dimer ion (i.e. He^[*+](n = 2; 3)-He) are found to deexcite via interatomic coulombic decay.
Dörner, R.   +17 more
core   +2 more sources

On surface plasmon polariton wavepacket dynamics in metal-dielectric heterostructures

open access: yes, 2010
The WKB equations for dynamics of the surface plasmon polariton (SPP) wavepacket are studied. The dispersion law for the SPP in the metal-dielectric heterostructure with varying thickness of a perforated dielectric layer is rigorously calculated and ...
A K Zvezdin   +6 more
core   +1 more source

Particle creation, classicality and related issues in quantum field theory: I. Formalism and toy models

open access: yes, 2007
The quantum theory of a harmonic oscillator with a time dependent frequency arises in several important physical problems, especially in the study of quantum field theory in an external background. While the mathematics of this system is straightforward,
A. Albrecht   +61 more
core   +1 more source

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