Results 41 to 50 of about 72,461 (205)

Non-linear dynamo waves in an incompressible medium when the turbulence dissipative coefficients depend on temperature [PDF]

Annales Geophysicae, 1997
Non-linear α-ω; dynamo waves existing in an incompressible medium with the turbulence dissipative coefficients depending on temperature are studied in this paper.
A. D. Pataraya, T. A. Pataraya
doaj   +1 more source

Magnetic Helicity Evolution During the Solar Activity Cycle: Observations and Dynamo Theory

, 2003
We study a simple model for the solar dynamo in the framework of the Parker migratory dynamo, with a nonlinear dynamo saturation mechanism based on magnetic helicity conservation arguments.
Abramenko, Abramenko, Baliunas, Bao, Berger, Blackman, Blackman, Brandenburg, Brandenburg, Brandenburg, Brooke, Bruevich, Chae, Covas, D. Moss, D. Sokoloff, Dikpati, Field, Frisch, Galitski, H. Zhang, Hoyt, I. Rogachevskii, Iroshnikov, K. Kuzanyan, Kleeorin, Kleeorin, Kleeorin, Kleeorin, Kleeorin, Kleeorin, Kleeorin, Kuzanyan, Longcope, N. Kleeorin, Parker, Pevtsov, Pevtsov, Pevtsov, Rogachevskii, Rogachevskii, Rust, Rüdiger, Seehafer, Sofia, Sokoloff, Spruit, Subramanian, Tavakol, Wang, Woltjer, Zhang, Zhang, Zhang, Zhang, Zhang   +55 more
core   +1 more source

Dissipative effects on the sustainment of a magnetorotational dynamo in Keplerian shear flow [PDF]

, 2014
The magnetorotational (MRI) dynamo has long been considered one of the possible drivers of turbulent angular momentum transport in astrophysical accretion disks.
Cossu, C., Lesur, G., Longaretti, P-Y., Ogilvie, G. I., Rincon, F., Riols, A.   +5 more
core   +3 more sources

Multiple scale dynamo [PDF]

Proceedings of the National Academy of Sciences, 1997
A scaling law approach is used to simulate the dynamo process of the Earth’s core. The model is made of embedded turbulent domains of increasing dimensions, until the largest whose size is comparable with the site of the core, pervaded by large-scale magnetic fields.
, Le Mouël JL, C J, Allègre, C, Narteau   +2 more
openaire   +2 more sources

Persistent Magnetic Wreaths in a Rapidly Rotating Sun [PDF]

, 2010
When our Sun was young it rotated much more rapidly than now. Observations of young, rapidly rotating stars indicate that many possess substantial magnetic activity and strong axisymmetric magnetic fields.
Allan Sacha Brun, Baliunas, Ballot, Barnes, Benjamin P. Brown, Bouvier, Brandenburg, Brown, Browning, Browning, Brun, Brun, Charbonneau, Cline, Clyne, Delfosse, Dikpati, Howe, Juri Toomre, Knobloch, Käpylä, Mark S. Miesch, Matt, Matthew K. Browning, Miesch, Moffatt, Mohanty, Ossendrijver, Reiners, Reiners, Rempel, Saar, Saar, Saar, Steenbeck, Vasil, Vasil, West, West   +38 more
core   +2 more sources

Development of plant extracts as substrates for untargeted transporter substrate identification in Xenopus oocytes

Frontiers in Plant Science
Amongst the thousands of transport proteins constituting approximately 10% of coding sequences in a genome, only few have an assigned function. Heterologous expression of transporters in combination with the use of plant extracts as complex mixtures of ...
Christos Theodorou, Victor de-Prado-Parralejo, Deyang Xu, Yoshimasa Todoroki, Louise Svenningsen, Tetsuya Mori, Christoph Crocoll, Masami Yokota Hirai, Hiroshi Tsugawa, Hiroshi Tsugawa, Hiroshi Tsugawa, Hussam Hassan Nour- Eldin, Barbara Ann Halkier   +12 more
doaj   +1 more source

Equation of the magnetic field distribution of dynamo sheets taking into account crystallographic structure [PDF]

Archives of Electrical Engineering, 2019
The main purpose of the paper is to present a method which allows taking into account the anisotropic properties of dynamo steel sheets. An additional aim is to briefly present anisotropic properties of these sheets which are caused by occurrences of ...
Witold Mazgaj, Zbigniew Szular, Michał Sierżęga, Paweł Szczurek   +3 more
doaj   +1 more source

An analytic mean-field $\alpha^2$-dynamo with a force-free corona [PDF]

, 2017
Stellar dynamos are affected by boundary conditions imposed by stellar coronae. Under some approximations it is possible to find analytical solutions.
Bonanno, Alfio, Del Sordo, Fabio
core   +2 more sources

NKCC1: A key regulator of glioblastoma progression

Molecular Oncology, EarlyView.
Glioblastoma (GBM) progression is driven by disrupted chloride cotransporter homeostasis. NKCC1 is highly expressed in stem‐like, astrocytic, and progenitor cells, correlating with earlier recurrence, while overall survival remains unaffected. NKCC1 serves as a prognostic marker and potential therapeutic target, linking chloride transporter imbalance ...
Anja Thomsen, Diana Freitag, Madlen Haase, Christian Senft, Falko Schwarz, Silke Keiner   +5 more
wiley   +1 more source

αΛ-dynamos [PDF]

International Astronomical Union Colloquium, 1991
AbstractIn contrast toαω-dynamos, where the angular velocity is arbitrarily prescribed, we consider hereαΛ-dynamos, for which the differential rotation and meridional circulation are solutions of the momentum equation. The non-diffusive parts of the Reynolds stress tensor are parameterized by theΛ-effect.
A. Brandenburg, D. Moss, M. Rieutord, G. Rüdiger, I. Tuominen   +4 more
openaire   +1 more source