Results 141 to 150 of about 7,633,755 (347)

Complexity and Intermittent Turbulence in Space Plasmas

open access: yes, 2004
Sporadic and localized interactions of coherent structures arising from plasma resonances can be the origin of "complexity" of the coexistence of non- propagating spatiotemporal fluctuations and propagating modes in space plasmas.
Tam, Sunny W. Y.   +2 more
core  

Self-consistent kinetic model of nested electron- and ion-scale magnetic cavities in space plasmas. [PDF]

open access: yesNat Commun, 2020
Li JH   +15 more
europepmc   +1 more source

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

Complex plasmas: Interaction potentials and non-Hamiltonian dynamics [PDF]

open access: yes, 2007
This thesis is a cumulative dissertation that consists of three papers. The first paper addresses the issue of screening of a charged dust particle suspended in the plasma-wall transition layer of a plasma discharge.
Kompaneets, Roman, Kompaneets, R.
core  

Plasma in laboratory and space

open access: yesLe Journal de Physique Colloques, 1979
Plasma phenomena are studied in the laboratory, in the magnetospheres, and in more distant astrophysical regions. The basic properties of plasmas are likely to be the same everywhere but the transfer of knowledge between the regions requires laws of scaling by a factor of up-to 1027 (= ratio between Hubble distance 1028 cm and laboratory dimensions ...
openaire   +2 more sources

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti   +11 more
wiley   +1 more source

Cosmic Ray Interactions, Propagation, and Acceleration in Space Plasmas

open access: yes, 2006
The book consists of four Chapters. Chapter 1 shortly describes main properties of space plasmas and primary CR, different types of CR interactions with space plasmas components (matter, photons, and frozen in magnetic fields).
Dorman, Lev I
core   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

open access: yesAdvanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin   +4 more
wiley   +1 more source

Cyclotron maser radiation from inhomogeneous plasmas

open access: yes, 2011
Cyclotron maser instabilities are important in space, astrophysical, and laboratory plasmas. While extensive work has been done on these instabilities, most of it deals with homogeneous plasmas with uniform magnetic fields while in practice, of course ...
Cairns, R. A.   +44 more
core   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz   +4 more
wiley   +1 more source

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