Zobrazeno 1 - 10
of 118
pro vyhledávání: '"J A, Leake"'
Publikováno v:
The Astrophysical Journal, Vol 962, Iss 2, p 149 (2024)
Observations have shown a clear association of filament/prominence eruptions with the emergence of magnetic flux in or near filament channels. Magnetohydrodynamic (MHD) simulations have been employed to systematically study the conditions under which
Externí odkaz:
https://doaj.org/article/9906d060d5064f439832835f2f8a3fcd
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 2, p 148 (2024)
It has been suggested that the ratio of photospheric direct to return current, ∣DC/RC∣, may be a better proxy for assessing the ability of solar active regions to produce a coronal mass ejection (CME) than others such as the amount of shear along
Externí odkaz:
https://doaj.org/article/37048b7c8aca4d14a61a2c4dbc53f58a
Publikováno v:
Biogeosciences, Vol 11, Iss 2, Pp 321-331 (2014)
Trees dominate terrestrial biotic weathering of silicate minerals by converting solar energy into chemical energy that fuels roots and their ubiquitous nutrient-mobilising fungal symbionts. These biological activities regulate atmospheric CO2 concent
Externí odkaz:
https://doaj.org/article/794c6e9869ed4504934843b0c514ab5b
Publikováno v:
The New phytologist. 145(3)
Seedlings of the myco-heterotrophic orchid Corallorhiza trifida which had been germinated in the field in mesh bags developed hyphal links and mycorrhizas with Betula pendula and Salix repens, but not with Pinus sylvestris, when transplanted into soi
Autor:
Mark G. Linton, S. Dacie, Pascal Démoulin, L. van Driel-Gesztelyi, David MacTaggart, Mark C. M. Cheung, J. E. Leake
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2017, 606, pp.A34. ⟨10.1051/0004-6361/201730767⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2017, 606, pp.A34. ⟨10.1051/0004-6361/201730767⟩
Astronomy and Astrophysics-A&A, 2017, 606, pp.A34. ⟨10.1051/0004-6361/201730767⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2017, 606, pp.A34. ⟨10.1051/0004-6361/201730767⟩
Context. The evolution of the photospheric magnetic field distributions (probability densities) has previously been derived for a\ud set of active regions. Photospheric field distributions are a consequence of physical processes that are difficult to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30db925fa272bd324d54f625cb5307d3
https://hal-obspm.ccsd.cnrs.fr/obspm-02190714/document
https://hal-obspm.ccsd.cnrs.fr/obspm-02190714/document
Autor:
J. E. Leake, Tony Arber
Publikováno v:
Astronomy & Astrophysics. 450:805-818
We present results from 2.5D numerical simulations of the emergence of magnetic flux from the upper convection zone through the photosphere and chromosphere into the corona. Certain regions of the solar atmosphere are at sufficiently low temperatures
Publikováno v:
Astronomy & Astrophysics. 442:1091-1098
Certain regions of the solar atmosphere are at sufficiently low temperatures to be only partially ionised. The lower chromosphere contains neutral atoms, the existence of which greatly increases the efficiency of the damping of waves due to collision
Publikováno v:
Journal of Physics D: Applied Physics. 33:1048-1053
Tungsten trioxide films were deposited on (100) SrTiO3 and R-plane (10 2) cut sapphire substrates by dc magnetron sputtering, using a tungsten target in an Ar/O2 sputtering gas mixture at substrate temperatures ranging from 500 to 850 °C. Deposited
Publikováno v:
Medical Education. 32:105-111
The objective of this study was to investigate whether or not education about the concept of uncertainty reduced variability in treatment decision-making. Three small groups of dentists in North York, Canada were asked to make restorative treatment d