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Coal mine dust lowers spectral reflectance of Arctic snow by up to 84 percent
Coal mine dust lowers spectral reflectance Arctic snow up to 84 percent
2017/2/16
Dust released by an active coal mine in Svalbard, Norway, reduced the spectral reflectance of nearby snow and ice by up to 84 percent, according to new University of Colorado Boulder-led research.The ...
Carbon soot particles, dust blamed for discoloring India’s Taj Mahal
Carbon soot particles dust blamed discoloring India Taj Mahal
2014/12/30
Knowing the culprits in the discoloration is just the first step in cleaning up the Taj Mahal. Scientists now must determine where the particles are coming from to develop strategies for controlling t...
The Life Cycle of Dust in the Universe: Observations, Theory, and Laboratory Experiments
The Life Cycle of Dust in the Universe Observations Theory Laboratory Experiments
2013/10/9
This meeting aims to address the life cycle of dust in the Universe, which covers the formation, evolution and destruction of dust in a range of environments, ranging from the smallest to the largest ...
On the unconstrained expansion of a spherical plasma cloud turning collisionless : case of a cloud generated by a nanometer dust grain impact on an uncharged target in space
spherical plasma collisionless nanometer dust grain impact space Plasma Physics
2012/5/29
Nano and micro meter sized dust particles travelling through the heliosphere at several hundreds of km/s have been repeatedly detected by interplanetary spacecraft. When such fast moving dust particle...
One-dimensional vertical dust strings in a glass box
One-dimensional vertical dust strings glass box Plasma Physics
2011/8/4
Abstract: The oscillation spectrum of a one-dimensional vertical dust string formed inside a glass box on top of the lower electrode in a GEC reference cell was studied. A mechanism for creating a sin...
Dust particle charge in plasma with ion flow and electron depletion
Complex plasma dust charging dust levitation RF discharge
2011/8/2
Abstract: The charge of micrometer-sized dust particles suspended in plasma above the powered electrode of radio-frequency (RF) discharges is studied. Using a self-consistent fluid model, the plasma p...
Charging of Interstellar Dust Grains Near the Heliopause
Charg Interstellar Dust Grains Heliopause Plasma Physics
2011/8/2
Abstract: The deflection of interstellar dust grains in the magnetic field near the heliopause has been investigated based on the assumption that interstellar grains are homogeneous spheres.
Dust-acoustic solitary waves in dusty plasma with variable dust charge
Dust-acoustic solitary waves dusty plasma with variable
2011/9/2
In this article we are going to consider dust acoustic wave in dusty plasma whose constituents are inertial negative charged dust particles ,Boltzmann distributed electrons and non-thermal distributed...
Relativistic analogue of the D'Alembert principle of virtual displacements and the effective actions for the spherically-symmetric charged dust shell in General Relativity
Relativistic analogue D'Alembert principle of virtual displacements effective actions spherically-symmetric charged dust shell General Relativity
2010/12/20
A simple and direct derivation of the variational principle and effective actions for a spherical charged dust shell in general relativity is offered. This principle is based on the relativistic versi...
On the Stable Spherically-Symmetric Charged Dust Configurations in General Relativity
Stable Spherically-Symmetric Charged Dust Configurations General Relativity
2010/12/20
The radial motion of a self-graviting charged dust and stability condition of the static
charged dust spheres are considered. The stability is possible for the bound states of the weakly charged laye...
Coarse-graining of inhomogeneous dust flow in General Relativity via isometric embeddings
inhomogeneous dust flow isometric embeddings
2010/3/17
We present a new approach to coarse-graining of variables describing dust flow in GR. It is based on assigning quasi-local shear, twist and expansion to 2-dimensional surfaces with the help of isometr...
Nonlinear instability of wormholes supported by exotic dust and a magnetic field
wormholes supported exotic dust magnetic field
2010/3/17
Recently, spherically symmetric, static wormholes supported by exotic dust and a radial magnetic field have been derived and argued to be stable with respect to linear radial fluctuations. In this rep...
Charged cosmological dust solutions of the coupled Einstein and Maxwell equations
cosmological dust Maxwell equations
2010/3/17
It is well known through the work of Majumdar, Papapetrou, Hartle, and Hawking that the coupled Einstein and Maxwell equations admit a static multiple blackhole solution representing a balanced equili...
A new approach for doing theoretical and numeric work with Lemaitre-Tolman-Bondi dust models
Lemaitre-Tolman-Bondi cosmic times
2010/3/17
We introduce quasi-local integral scalar variables for the study of spherically symmetric Lemaitre-Tolman-Bondi (LTB) dust models. Besides providing a covariant, and theoretically appealing, interpret...
Effects of Dust Charge Variation On Electrostatic Waves In Dusty Plasmas With Temperature Anisotropy
Electrostatic waves Kinetic theory Magnetized dusty plasmas Dust charge fluctuation Wave propagation
2010/7/5
We utilize a kinetic approach to the problem of wave propagation in dusty plasmas, taking into account the variation of the charge of the dust particles due to inelastic collisions with electrons and ...