Results 41 to 50 of about 2,845,402 (306)

Effects of equatorial plasma bubble-induced ionospheric gradients on GNSS PPP-RTK

GPS Solutions
Equatorial plasma bubble (EPB) exerts a severe threat to global navigation satellite system (GNSS) technique. It not only can lead to ionospheric scintillation, but also can create strong plasma gradients in ionosphere.
Long Tang, Fenkai Zhang, Pan Li, Yuan-Fan Deng, Wu Chen   +4 more
semanticscholar   +1 more source

On the Upwelling of the F Layer Base and Prediction of Equatorial Plasma Bubble

Geophysical Research Letters, 2023
Prediction of equatorial plasma bubbles (EPBs) continues to be a challenge for the scientific community. We present a novel data analysis approach, employed on the collocated radar and ionosonde observations from Gadanki, providing new experimental ...
A. K. Patra, S. K. Das
doaj   +1 more source

Modeling a sonoluminescing bubble as a plasma

Journal of Quantitative Spectroscopy and Radiative Transfer, 2001
Abstract We present detailed simulations of the optical spectra emitted from an Argon plasma whose conditions correspond to those thought to prevail within sonoluminescing bubbles. The model incorporates detailed atomic physics based on atomic data from the Opacity Project database, and includes bound–bound, bound–free, and free–free transitions ...
Burnett, P, Chambers, D, Heading, D, Machacek, A, Moss, W, Rose, S, Schnittker, M, Lee, R, Young, P, Wark, J   +9 more
openaire   +1 more source

Equatorial Plasma Bubbles: A Review

Atmosphere, 2022
The equatorial plasma bubble (EPB) phenomenon is an important component of space weather as the ionospheric irregularities that develop within EPBs can have major detrimental effects on the operation of satellite-based communication and navigation systems. Although the name suggests that EPBs occur in the equatorial ionosphere, the nature of the plasma
openaire   +2 more sources

New helium bubble growth mode at a symmetric grain-boundary in tungsten: accelerated molecular dynamics study

Materials Research Letters, 2018
This work, with an emphasis on helium irradiation rates appropriate for fusion-plasma conditions, advances the understanding of helium evolution at grain boundaries in W, an important consideration in the understanding of W as a plasma-facing component ...
X.-Y. Liu, B. P. Uberuaga, D. Perez, A. F. Voter   +3 more
doaj   +1 more source

Plasma Production in Isolated Bubbles

IEEE Transactions on Plasma Science, 2014
The production of plasma in isolated (i.e., unattached to a physical electrode) air bubbles in liquid water is investigated. Bubble size along with bubble position relative to the pulsed high voltage electrode is considered.
Sarah N. Gucker, Bradley S. Sommers, John E. Foster   +2 more
openaire   +1 more source

Protocol for quantifying miRNA trafficking across the endosomal membrane

FEBS Open Bio, EarlyView.
An in vitro protocol measures miRNA uptake into endosomes isolated from mammalian cell extracts, which are free of subcellular contaminants. Performed at 37 °C in the presence of ATP, it ensures the import of single‐stranded miRNA into the endosomal lumen.
Syamantak Ghosh, Kamalika Mukherjee, Suvendra N. Bhattacharyya   +2 more
wiley   +1 more source

Drag reduction due to recirculating bubble control using plasma actuator on a squareback model

MATEC Web of Conferences, 2018
Flow control on a squareback object which resembles many engineering related objects is believed to be highly beneficial. One of the flow characteristics behind the object, recirculating bubble, is known to play significant role in pressure distribution.
Budiarso, Harinaldi, Karim Riza Farrash, Julian James   +3 more
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Observations of the Roots of Plasma Bubbles: Are they sometimes foamy?

Journal of Geophysical Research: Space Physics, 2023
Abstract Dramatic irregularities in the plasma density of the ionosphere, first discovered by their effects on radio wave propagation in 1938, despite decades of investigation, still remain puzzling. Their deleterious effects on radio wave communication, satellite command and control, and GPS navigation strongly motivate better ...
openaire   +1 more source