Results 121 to 130 of about 48,368 (320)
Understanding Streaming Instabilities in the Limit of High Cosmic-Ray Current Density
The Astrophysical JournalA critical component of particle acceleration in astrophysical shocks is the nonresonant (Bell) instability, where the streaming of cosmic rays (CRs) leads to the amplification of magnetic fields necessary to scatter particles.
Emily Lichko +3 more
doaj +1 more source
EPJ Web of Conferences, 2013 The streaming of an intense ion beam relative to the background plasma can cause the development of fast electrostatic collective instabilities. In this paper we examine numerically the defocusing effects of two-stream instability on the ion beam ...
Startsev Edward A. +2 more
doaj +1 more source
Cosmic ray streaming instability generated in the intergalactic medium [PDF]
, 2016 M. D’Angelo +2 more
openalex +1 more source
A filamentation instability for streaming cosmic-rays
Monthly Notices of the Royal Astronomical Society, 2011 Accepted for publication in ...
Reville, B., Bell, A.R.
openaire +7 more sources
Advanced Science, EarlyView.A programmable passive digital shutter based on multiphase liquid–liquid interface dynamics is introduced for precise fabrication of hydrogel microfibers. By modulating the shutter operation, microfibers with tunable geometry—including linear, helical, tadpole‐like, and spherical forms—are produced.
Dongrui Zhang +14 more
wiley +1 more source
The Astrophysical JournalThe convective overstability (COS) is a hydrodynamic instability occurring in protoplanetary disk (PPD) regions with an adverse radial entropy gradient. It is a potential driver of turbulence and may influence planetesimal formation. In this second paper
Marius Lehmann, Min-Kai Lin
doaj +1 more source
Multi‐Soliton Microcombs Enable Ultrafast Nanometric‐Precision Ranging and Photon‐Level Detection
Advanced Science, EarlyView.Our work first demonstrates dual‐multi‐soliton ranging and confirms its multifunctional capability. The method achieves ultrafast and nanometric‐precision measurement. For practical applications, we further extend the multi‐soliton states to photon‐level ranging.
Jiawen Zhi +10 more
wiley +1 more source
Two-stream instabilities in degenerate quantum plasmas [PDF]
Physics Letters A, 2014 The quantum mechanical effect on the plasma two-stream instability is studied based on the dielectric function approach. The analysis suggests that the degenerate plasma relevant to the inertial confinement fusion behaves differently from classical plasmas when the electron drift velocity is comparable to the Fermi velocity.
openaire +2 more sources
Droplet Digital CRISPR for Nucleic Acid Detection
Advanced Science, EarlyView.This review outlines recent advances in droplet digital CRISPR technology for nucleic acid detection, combining CRISPR specificity with droplet digital‐based absolute quantification. It summarizes core principles, amplification‐assisted and amplification‐free strategies, and representative DNA and RNA biomarker applications.
Yang Zhang +4 more
wiley +1 more source
Ion‐Acoustic Waves and the Proton‐Alpha Streaming Instability at Collisionless Shocks
Geophysical Research LettersIon‐acoustic waves are routinely observed at collisionless shocks and could be an important source of resistivity. The source of instability and the effects of the waves are not fully understood.
D. B. Graham +2 more
doaj +1 more source