Zobrazeno 1 - 10
of 161
pro vyhledávání: '"Then, H."'
Autor:
Then C, Sujana C, Herder C, Then H, Heier M, Meisinger C, Peters A, Koenig W, Rathmann W, Maalmi H, Ritzel K, Roden M, Stumvoll M, Thorand B, Seissler J
Publikováno v:
Vascular Health and Risk Management, Vol Volume 18, Pp 335-346 (2022)
Cornelia Then,1,2 Chaterina Sujana,2– 4 Christian Herder,5– 7 Holger Then,8 Margit Heier,3,9 Christa Meisinger,10,11 Annette Peters,3,12 Wolfgang Koenig,12– 14 Wolfgang Rathmann,5,15 Haifa Maalmi,5,7 Katrin Ritzel,1 Michael Roden,5– 7 Michael
Externí odkaz:
https://doaj.org/article/8818aa0055c44c6096211b7b6dbe4dc6
Wireless communications, radio astronomy and other radio science applications are predominantly implemented with techniques built on top of the electromagnetic linear momentum (Poynting vector) physical layer. As a supplement and/or alternative to th
Externí odkaz:
http://arxiv.org/abs/1410.4268
Starting from Stratton-Panofsky-Phillips-Jefimenko equations for the electric and magnetic fields generated by completely arbitrary charge and current density distributions at rest, we derive far-zone approximations for the fields, containing all com
Externí odkaz:
http://arxiv.org/abs/1001.0954
Publikováno v:
Phys. Rev. Lett. 102, 185005 (2009)
We study theoretically the exchange of angular momentum between electromagnetic and electrostatic waves in a plasma, due to the stimulated Raman and Brillouin backscattering processes. Angular momentum states for plasmon and phonon fields are introdu
Externí odkaz:
http://arxiv.org/abs/0904.2701
Autor:
Hahn, A. M., Then, H.
Publikováno v:
Phys. Rev. E 79, 011113 (2009)
We derive a fluctuation theorem for generalized work distributions, related to bijective mappings of the phase spaces of two physical systems, and use it to derive a two-sided constraint maximum likelihood estimator of their free energy difference wh
Externí odkaz:
http://arxiv.org/abs/0809.2256
Autor:
Then, H., Thidé, B., Mendonça, J. T., Carozzi, T. D., Bergman, J., Baan, W. A., Mohammadi, S., Eliasson, B.
Electromagnetic waves with an azimuthal phase shift are known to have a well defined orbital angular momentum. Different methods that allow for the detection of the angular momentum are proposed. For some, we discuss the required experimental setup a
Externí odkaz:
http://arxiv.org/abs/0805.2735
Autor:
Mendonça, J. T., Thidé, B., Bergman, J. E. S., Mohammadi, S. M., Eliasson, B., Baan, W., Then, H.
We study theoretically the exchange of angular momentum between a photon beam and a plasma vortex, and demonstrate the possible excitation of photon angular momentum states in a plasma. This can be relevant to laboratory and space plasma diagnostics;
Externí odkaz:
http://arxiv.org/abs/0804.3221
Angular momentum densities of electromagnetic beams are connected to helicity (circular polarization) and topological charge (azimuthal phase shift and vorticity). Computing the electromagnetic fields emitted by a circular antenna array, analytic exp
Externí odkaz:
http://arxiv.org/abs/0803.0200
Autor:
Then, H.
We present a few subjects from physics that have one in common: the spectral resolution of the Laplacian.
Comment: 24 pages. Contribution to the TSL Expository Lecture Series V "Computational Physical Sciences 2006", Universiti Putra Malaysia
Comment: 24 pages. Contribution to the TSL Expository Lecture Series V "Computational Physical Sciences 2006", Universiti Putra Malaysia
Externí odkaz:
http://arxiv.org/abs/0712.4322
Autor:
Thidé, B., Then, H., Sjöholm, J., Palmer, K., Bergman, J., Carozzi, T. D., Istomin, Ya. N., Ibragimov, N. H., Khamitova, R.
Publikováno v:
Phys.Rev.Lett.99:087701,2007
We show numerically that vector antenna arrays can generate radio beams which exhibit spin and orbital angular momentum characteristics similar to those of helical Laguerre-Gauss laser beams in paraxial optics. For low frequencies (< 1 GHz), digital
Externí odkaz:
http://arxiv.org/abs/0705.1208