Zobrazeno 1 - 10
of 1 206
pro vyhledávání: '"Block D"'
Publikováno v:
IEEE ROBOTICS AND AUTOMATION LETTERS, VOL. 7, NO. 3, JULY 2022
A reinforcement learning (RL) control policy could fail in a new/perturbed environment that is different from the training environment, due to the presence of dynamic variations. For controlling systems with continuous state and action spaces, we pro
Externí odkaz:
http://arxiv.org/abs/2112.01953
Akademický článek
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Autor:
Wörner, L., Räth, C., Nosenko, V., Zhdanov, S. K., Thomas, H. M., Morfill, G. E., Schablinski, J., Block, D.
The structure of driven three-dimensional complex plasma clusters was studied experimentally. The clusters consisted of around 60 hollow glass spheres with a diameter of 22 microns that were suspended in a plasma of rf discharge in argon. The particl
Externí odkaz:
http://arxiv.org/abs/1212.2042
Power spectra of Large Magellanic Cloud (LMC) emission at 24, 70 and 160 microns observed with the Spitzer Space Telescope have a two-component power-law structure with a shallow slope of -1.6 at low wavenumber, k, and a steep slope of -2.9 at high k
Externí odkaz:
http://arxiv.org/abs/1006.2080
Autor:
Buta, R. J., Knapen, J. H., Elmegreen, B. G., Salo, H., Laurikainen, E., Elmegreen, D. M., Puerari, I., Block, D. L.
We present deep near-infrared K_s-band AAT IRIS2 observations of a selected sample of nearby barred spiral galaxies, including some with the strongest known bars. The sample covers a range of Hubble types from SB0- to SBc. The goal is to determine if
Externí odkaz:
http://arxiv.org/abs/0903.2008
Publikováno v:
Contrib. Plasma Phys. 49, 281-302 (2009)
In this review, an overview of structural properties and phase transitions in finite spherical dusty (complex) plasma crystals -- so-called Yukawa balls -- is given. These novel kinds of Wigner crystals can be directly analyzed experimentally with vi
Externí odkaz:
http://arxiv.org/abs/0901.4309
Recently the occurrence probabilities of ground- and metastable states of three-dimensional Yukawa clusters with 27 and 31 particles have been analyzed in dusty plasma experiments [Block et al., Physics of Plasmas 15, 040701 (2008)]. There it was fou
Externí odkaz:
http://arxiv.org/abs/0805.3016
Autor:
Bonitz, M., Ludwig, P., Baumgartner, H., Henning, C., Filinov, A., Block, D., Arp, O., Piel, A., Kading, S., Ivanov, Y., Melzer, A., Fehske, H., Filinov, V.
Publikováno v:
Physics of Plasmas 15, 055704 (2008)
Strong correlation effects in classical and quantum plasmas are discussed. In particular, Coulomb (Wigner) crystallization phenomena are reviewed focusing on one-component non-neutral plasmas in traps and on macroscopic two-component neutral plasmas.
Externí odkaz:
http://arxiv.org/abs/0801.0754
Autor:
Block, D. L., Bournaud, F., Combes, F., Groess, R., Barmby, P., Ashby, M. L. N., Fazio, G. G., Pahre, M. A., Willner, S. P.
Publikováno v:
Nature 443:832-834,2006
The unusual morphology of the Andromeda Spiral (Messier 31, the closest spiral galaxy to the Milky Way) has long been an enigma. Although regarded for decades as showing little evidence of a violent history, M~31 has a well-known outer ring of star f
Externí odkaz:
http://arxiv.org/abs/astro-ph/0610543
Autor:
Block, D. L., Puerari, I., Fazio, G. G., Stockton, A., Canalizo, G., Freeman, K. C., Jarrett, T. H., Combes, F., Groess, Robert, Worthey, G., Gehrz, R. D., Woodward, C. E., Polomski, Elisha F.
The Triangulum Spiral Galaxy Messier 33 offers unique insights into the building of a galactic disk. We identify spectacular arcs of intermediate age (0.6 Gyr - 2 Gyr) stars in the low-metallicity outer disk. The northern arc spans approx. 120 degree
Externí odkaz:
http://arxiv.org/abs/astro-ph/0610575