Results 61 to 70 of about 22,479 (200)

Advances in mean-field dynamo theories

, 2012
We give a short introduction to the subject and review advances in understanding the basic ingredients of the mean-field dynamo theory. The discussion includes the recent analytic and numerical work in developments for the mean electromotive force of the
Pipin, V. V.
core   +1 more source

The solar dynamo: inferences from observations and modeling [PDF]

, 2014
It can be shown on observational grounds that two basic effects of dynamo theory for solar activity - production of the toroidal field from the poloidal one by differential rotation and reverse conversion of the toroidal field to the poloidal ...
Kitchatinov, L. L.
core   +1 more source

First Flexible All‐Perovskite Tandem Minimodule Using Au‐Free Recombination Junction

Advanced Photonics Research, Volume 7, Issue 4, April 2026.
Through the development of a thin‐indium tin oxide recombination layer with a high lateral resistance combined with a compact SnO2 buffer layer, stacking MA‐free wide bandgap and narrow bandgap subcells is successfully achieved. Also, thanks to the implementation of a suitable laser scribing process, 11 cm2 all‐perovskite tandem minimodules are ...
Amina Labiod, Polyxeni Tsoulka, Cyril Leon, Jules Allegre, Solenn Berson   +4 more
wiley   +1 more source

The Solar Dynamo [PDF]

Symposium - International Astronomical Union, 1993
The generation of the solar magnetic field is generally ascribed to dynamo processes in the convection zone. The dynamo effects, differential rotation (ω–effect) and helical turbulence (α–effect) are explained, and the basic properties of the mean–field dynamo equations are discussed in close comparison with the observed solar cycle.Especially the ...
openaire   +1 more source

Flux-dominated solar dynamo model with a thin shear layer

, 2007
Flux-dominated solar dynamo models have demonstrated to reproduce the main features of the large scale solar magnetic cycle, however the use of a solar like differential rotation profile implies in the the formation of strong toroidal magnetic fields at ...
Brandenburg, Chatterjee, Dikpati, Dikpati, Dikpati, Ferriz-Maz, Gilman, Guerrero, Guerrero, Kitchatinov, Nandy, Press, Rogers, Rüdiger, Ziegler   +14 more
core   +1 more source

Solar Magnetic Field Reversals and the Role of Dynamo Families [PDF]

, 2012
The variable magnetic field of the solar photosphere exhibits periodic reversals as a result of dynamo activity occurring within the solar interior. We decompose the surface field as observed by both the Wilcox Solar Observatory and the Michelson Doppler
A. S. Brun, Abramowitz, Alexakis, Basu, Browning, Brun, Böhm-Vitense, Cattaneo, Charbonneau, Choudhuri, Dikpati, Dikpati, Dikpati, Guckenheimer, Hoeksema, J. T. Hoeksema, Karak, Knobloch, M. L. DeRosa, Melbourne, Moffatt, Pétrélis, Racine, Reiners, Reiners, Ribes, Roberts, Ruzmaikin, Saar, Schrijver, Stenflo, Strugarek, Tobias, Valet, Yeates   +34 more
core   +3 more sources

Therapeutic Gases in Biomedicine: Updates on Nitric Oxide and Beyond

Advanced Science, Volume 13, Issue 23, 23 April 2026.
Therapeutic gases, including NO, CO, H2S, H2, CO2, O2, and Xe, play vital roles in cellular signaling and repair. This review highlights the emerging carriers and delivery systems that enable controlled, localized gas release for diagnostic and therapeutic applications.
Syed Muntazir Andrabi, Navatha Shree Sharma, Imran Ibn Gani Rather, S. M. Shatil Shahriar, Jingwei Xie   +4 more
wiley   +1 more source

Kinematic dynamo wave in the vicinity of the solar poles

, 2001
We consider a dynamo wave in the solar convective shell for the kinematic $\alpha\omega$-dynamo model. The spectrum and eigenfunctions of the corresponding equations are derived analytically with the aid of the WKB method.
Brandenburg A., Dmitry Sokoloff, Galitsky V. M., Krause F., Kuzanyan K. M., Landau L. D., Maslov V. P., Proctor M. R. E., Rüdiger G., Stix M., Tobias S. M., Vidtor M. Galitsky   +11 more
core   +1 more source

Light Stability of Laser‐Assisted Glass Encapsulated Perovskite Solar Cells under Different Atmospheres

Advanced Energy Materials, Volume 16, Issue 15, 15 April 2026.
This study presents a laser‐assisted glass‐frit encapsulation method for perovskite solar cells, comparing air‐, nitrogen‐, and CO2‐filled cavities. Results show that excluding oxygen and moisture significantly improves stability under illumination. The findings reveal the critical role of trapped gases in degradation, providing a pathway to durable ...
Marta Pereira, Jorge Martins, Rúben Madureira, Dzmitry Ivanou, Seyedali Emami, Adélio Mendes   +5 more
wiley   +1 more source

Filaments and the Solar Dynamo [PDF]

International Astronomical Union Colloquium, 1998
AbstractFilaments are a global phenomenon and their formation, structure and dynamics are determined by magnetic fields. So they are an important signature of the solar magnetism. The central mechanism in traditional mean-field dynamo theory is the alpha effect and it is a major result of this theory that the presence of kinetic or magnetic helicities ...
openaire   +2 more sources