Results 31 to 40 of about 349,191 (315)

Effects of Solar Activity on Ionospheric Ion Upflow During Geomagnetic Quiet Periods: DMSP Observations

open access: yesOpen Astronomy, 2020
Based on the Defense Meteorological Satellite Program (DMSP) observations during Solar Cycle 23, this paper examines solar activity dependence of ionospheric bulk ion upflow events (IUEs) in the Southern Hemisphere (SH).
Fu Shuai, Jiang Yong, Zhang Xiaoping
doaj   +1 more source

Development and Validation of Precipitation Enhanced Densities for the Empirical Canadian High Arctic Ionospheric Model

open access: yesSpace Weather, 2021
The Empirical Canadian High Artic Ionospheric Model (E‐CHAIM) provides the four‐dimensional ionosphere electron density at northern high latitudes (>50° geomagnetic latitude).
C. Watson   +2 more
doaj   +1 more source

A summary of the BARREL campaigns: Technique for studying electron precipitation. [PDF]

open access: yes, 2015
BARREL observed electron precipitation over wide range of energy and timescalesPrecipitating electron distribution is determined using spectroscopy for 19 January 2013 eventBARREL timing data has accuracy within sampling interval of 0.05 ...
Anderson, BR   +8 more
core   +2 more sources

Dispersion strengthening in vanadium microalloyed steels processed by simulated thin slab casting and direct charging: Part I - Processing parameters, mechanical properties and microstructure [PDF]

open access: yes, 2007
A study simulating thin slab continuous casting followed by direct charging into an equalisation furnace has been undertaken based on six low carbon (0.06wt-%) vanadium microalloyed steels.
Baker, T.N.   +5 more
core   +1 more source

Application of homogeneously precipitated nanosized Fe-doped alumina powders to carbon nanotube growth. [PDF]

open access: yes, 2010
Homogeneous precipitation of hydroxides was investigated as an alternative method to synthesize Fe-doped aluminum oxide (α-Al2−2xFe2xO3) particles over which carbon nanotubes (CNTs) were grown via a catalytic chemical vapor deposition (CCVD) method ...
Alvarez   +23 more
core   +2 more sources

Hot ductility of TiNb IF steel slab after hot torsion testing [PDF]

open access: yes, 2019
The aim of the work was to evaluate the hot ductility loss in TiNb stabilized IF steel directly from the continuously-cast slab using hot torsion testing (plastometry) in the temperature range 600-1250 degrees C according to the basic programme, and also
Bořuta, Aleš   +10 more
core   +1 more source

Dust particles precipitation in AC/DC electrostatic precipitator

open access: yesJournal of Physics: Conference Series, 2015
Submicron and nanoparticles removal from flue or exhaust gases remain still a challenge for engineers. The most effective device used for gas cleaning in power plants or industry is electrostatic precipitator, but its collection efficiency steeply decreases for particles smaller than 1 micron.
A Jaworek   +9 more
openaire   +1 more source

Evaluation of E Layer Dominated Ionosphere Events Using COSMIC/FORMOSAT-3 and CHAMP Ionospheric Radio Occultation Data

open access: yesRemote Sensing, 2020
At certain geographic locations, especially in the polar regions, the ionization of the ionospheric E layer can dominate over that of the F2 layer. The associated electron density profiles show their ionization maximum at E layer heights between 80 and ...
Sumon Kamal   +3 more
doaj   +1 more source

Cloudphysical Parameters in Dependence on Height above Cloud Base in Different Clouds. [PDF]

open access: yes, 1989
On flights with the DLR icing research aircraft the dependence of aircraft icing on cloudphysical parameters was determined; both for aircraft-referred icing and for normalized icing, as well as for various clouds and locations in clouds.
Hoffmann, H.-E., Roth, A.
core   +1 more source

A dimensionless study of the evaporation and drying stages in spray pyrolysis [PDF]

open access: yes, 2007
An original dimensionless study of the pure evaporation and precipitation stages of a spray pyrolysis process has been performed. An estimation of the evaporation time is proposed and the influence of the main processing parameters has been investigated.
Caussat, Brigitte, Reuge, Nicolas
core   +2 more sources

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