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Development of a novel LAMP device which is cheap, reusable, and can be produced in large amounts in a short period of time. The device was designed such not to require chemical exothermic reactions, have limited waste produced and with a minimum cos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ba2e027a323d0fd489ffbbd0e1b170e
https://doi.org/10.26434/chemrxiv.14224481.v1
https://doi.org/10.26434/chemrxiv.14224481.v1
Publikováno v:
Astronomy & Astrophysics. 448:433-438
Aims: The Strouhal number (St), which is a nondimensional measure of the correlation time, is determined from numerical models of convection. The Strouhal number arises in the mean-field theories of angular momentum transport and magnetic field gener
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aff6fb83b4c302d444a334b741c37cbb
https://doi.org/10.1051/0004-6361:20042245
https://doi.org/10.1051/0004-6361:20042245
Autor:
M. Ossendrijver
Publikováno v:
Advances in Space Research. 38:832-838
The origin of the solar magnetic field remains a stubborn challenge of astrophysics. At the solar surface the magnetic field assumes a complex, hierarchical structure in space and time. Systematic features such as the solar cycle and the butterfly di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b81760fea668c06c8766c1a7b263289e
https://doi.org/10.1016/j.asr.2005.07.021
https://doi.org/10.1016/j.asr.2005.07.021
Autor:
M. Ossendrijver
Publikováno v:
Astronomische Nachrichten. 326:166-169
The role of the dynamo layer for dynamo action in solar-type stars is discussed. As a result of instabilities, magnetic flux is expelled from the dynamo layer into the convection zone above it. The resulting partial evacuation of the dynamo layer and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4574ff7fac853778f662418dbda7a018
https://doi.org/10.1002/asna.200410371
https://doi.org/10.1002/asna.200410371
Publikováno v:
Astronomische Nachrichten. 326:186-189
We determine the Strouhal number (hereafter St), which is essentially a nondimensional measure of the correlation time, from numerical calculations of convection. We use two independent methods to estimate St. Firstly, we apply the minimal tau-approx
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::470affb18f8386f5951ce76e6d6fb655
https://doi.org/10.1002/asna.200410374
https://doi.org/10.1002/asna.200410374
Autor:
M. Ossendrijver
Publikováno v:
Astronomy and Astrophysics Review. 11:287-367
The solar dynamo continues to pose a challenge to observers and theoreticians. Observations of the solar surface reveal a magnetic field with a complex, hierarchical structure consisting of widely different scales. Systematic features such as the sol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdba0ea1976423ef7cd08bcded152dda
https://doi.org/10.1007/s00159-003-0019-3
https://doi.org/10.1007/s00159-003-0019-3
Publikováno v:
Astronomy & Astrophysics. 406:15-21
The question of whether kinematic α 2 -shell-dynamos are able to produce a cyclic activity is addressed. The α-effect is allowed to be latitudinally inhomogeneous and anisotropic but it is assumed as radially uniform in the turbulent shell. For a s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba6b69da6d33eb20fa8dd910d80e5ca9
https://doi.org/10.1051/0004-6361:20030738
https://doi.org/10.1051/0004-6361:20030738
Publikováno v:
Physics of the Earth and Planetary Interiors. 130:143-157
We present a detailed analysis of the Sint-800 virtual axial dipole moment (VADM) data in terms of an αΩ mean field model of the geodynamo that features a non-steady generation of poloidal from toroidal magnetic field. The result is a variable exc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be2bcccf2440bd2b2e939bef48601ab2
https://doi.org/10.1016/s0031-9201(02)00004-3
https://doi.org/10.1016/s0031-9201(02)00004-3
Publikováno v:
Geophysical & Astrophysical Fluid Dynamics. 94:263-314
Our intent is to provide a simple and quantitative understanding of the variability of the axial dipole component of the geomagnetic field on both short and long time scales. To this end we study the statistical properties of a prototype nonlinear me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48b9751e720fea0fec1ee949f1a3e185
https://doi.org/10.1080/03091920108203410
https://doi.org/10.1080/03091920108203410