Results 81 to 90 of about 345,959 (285)

Acceleration and transport of ions in turbulent current sheets: formation of non-maxwelian energy distribution [PDF]

open access: yesNonlinear Processes in Geophysics, 2009
The paper is devoted to particle acceleration in turbulent current sheet (CS). Our results show that the mechanism of CS particle interaction with electromagnetic turbulence can explain the formation of power law energy distributions.
A. V. Artemyev   +4 more
doaj  

Particle acceleration in solar flares [PDF]

open access: yes
The most direct signatures of particle acceleration in flares are energetic particles detected in interplanetary space and in the Earth atmosphere, and gamma rays, neutrons, hard X-rays, and radio emissions produced by the energetic particles in the ...
Forman, M. A., Ramaty, R.
core   +1 more source

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

A Study of Particle Acceleration in Blazar Jets

open access: yesThe Astrophysical Journal
The particle acceleration of blazar jets is crucial to high-energy astrophysics, yet the acceleration mechanism division in blazar subclasses and the underlying nature of these mechanisms remain elusive. In this work, we utilized the synchrotron spectral
Hubing Xiao   +6 more
doaj   +1 more source

Experimental Study on the Damping Effect of Multi-Unit Particle Dampers Applied to Bracket Structure

open access: yesApplied Sciences, 2019
Particle damping (PD) is a passive mean of vibration control in which small metallic or ceramic particles are placed inside a cavity that attached to the primary structure at the place of high vibration amplitudes.
Hang Ye   +3 more
doaj   +1 more source

Fast Shocks From Magnetic Reconnection Outflows

open access: yes, 2011
Magnetic reconnection is commonly perceived to drive flow and particle acceleration in flares of solar, stellar, and astrophysical disk coronae but the relative roles of different acceleration mecha- nisms in a given reconnection environment are not well
Chuang Ren   +4 more
core   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

open access: yesAdvanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller   +6 more
wiley   +1 more source

Investigation of the Dispersion Behavior of Inertial Particles within Accelerated Domain

open access: yesJournal of Applied Fluid Mechanics, 2015
This report presents a study of the dynamics dispersion behaviors of inertial particle in solid-air two-phase flow within accelerated domains using both experimental and simulation approaches. In the simulation, a threedimensional model was proposed by
Tong ZHAO   +4 more
doaj  

Particle Acceleration by Magnetic Reconnection in Geospace. [PDF]

open access: yesSpace Sci Rev, 2023
Oka M   +9 more
europepmc   +1 more source

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