Results 41 to 50 of about 2,101,430 (372)

The Chemical Evolution of the Galaxy: the two-infall model [PDF]

, 1996
In this paper we present a new chemical evolution model for the Galaxy which assumes two main infall episodes for the formation of halo-thick disk and thin disk, respectively. We do not try to take into account explicitly the evolution of the halo but we
C., Chiappini, F., Gratton, Matteucci, R.   +5 more
core   +2 more sources

Power scaling of ultrafast oscillators: 350-W average-power sub-picosecond thin-disk laser.

Optics Express, 2019
We report a semiconductor saturable absorber mirror (SESAM)-modelocked thin-disk laser oscillator delivering a record 350-W average output power with 940-fs, 39-µJ pulses at 8.88-MHz repetition rate and 37-MW peak power.
F. Saltarelli, I. Graumann, L. Lang, D. Bauer, C. Phillips, U. Keller   +5 more
semanticscholar   +1 more source

Computational Fluid Dynamics Assessment of Flow Characteristic of Thin Liquid Film over Smooth and Corrugated Rotating Disk Surface

Chemical Engineering Transactions, 2017
Process Intensification (PI) is used for analysis and design of innovative equipment and processing methods with substantially improved sustainability, efficiency and environmental performance.
P. Suppramaniam, K. Santherasaygargam, M.F. Majnis, S. Chanderan   +3 more
doaj   +1 more source

The Gaia-ESO Survey: Separating disk chemical substructures with cluster models [PDF]

, 2015
(Abridged) Recent spectroscopic surveys have begun to explore the Galactic disk system outside the solar neighborhood on the basis of large data samples.
Alfaro, E. J., Bensby, T., Chiappini, C., Costado, M. T., de Laverny, P., Franciosini, E., Gilmore, G., Guiglion, G., Hill, V., Hourihane, A., Jofré, P., Koposov, S. E., Kordopatis, G., Lardo, C., Lewis, J., Lind, K., Magrini, L., Mikolaitis, Š., Monaco, L., Morbidelli, L., Randich, S., Recio-Blanco, A., Rojas-Arriagada, A., Sacco, G. G., Schultheis, M., Worley, C. C., Zaggia, S.   +26 more
core   +4 more sources

Femtosecond Yb:CaGdAlO_4 thin-disk oscillator [PDF]

Optics Letters, 2012
A mode-locked thin-disk laser based on Yb:CALGO is demonstrated for the first time. At an average output power of 28 W we obtained pulses with a duration of 300 fs and a pulse energy of 1.3 μJ. 197 fs pulses with 0.9 μJ of energy were achieved at an average output power of 20 W.
Ricaud, Sandrine, Jaffres, Anael, Wentsch, Katrin, Suganuma, Akiko, Viana, Bruno, Loiseau, P., Weichelt, Birgit, Abdou-Ahmed, Marwan, Voss, Andreas, Graf, Thommas, Rytz, Daniel, Hönninger, Clemens, Mottay, Eric, Georges, Patrick, Druon, Frédéric   +14 more
openaire   +4 more sources

Isotopic Titanium Abundances in Local M Dwarfs [PDF]

, 2009
Relative abundances of the five stable isotopes of titanium (^46Ti to ^50Ti) are measured for 11 M dwarfs belonging to the thin disk (four stars), thick disk (three stars), the halo (one star), and either the thick or the thin disk (three stars).
Asplund, Bean, Chieffi, Cutri, David L. Lambert, Dawson, Delfosse, Gliese, Goswami, Hauschildt, Hauschildt, Hughes, Huss, Iwamoto, Johnson, Joy Chavez, Kobayashi, Kurucz, Kurucz, Lambert, Lodders, Lugaro, Martinache, Moore, Perryman, Plez, Reid, Reid, Rojas-Ayala, Sneden, Thielemann   +30 more
core   +2 more sources

Turbulent convection in thin accretion disks [PDF]

The Astrophysical Journal, 1995
38 pages including 1 PostScript ...
Itzhak Goldman, Amri Wandel
openaire   +4 more sources

Thin accretion disk around a four-dimensional Einstein-Gauss-Bonnet black hole [PDF]

Chinese Physics C, High Energy Physics & Nuclear Physics, 2020
Recently, a novel four-dimensional Einstein-Gauss-Bonnet (4EGB) theory of gravity was proposed by Glavan and Lin [D. Glavan and C. Lin, Phys. Rev. Lett.
C. Liu 刘, T. Zhu 朱, Qiang 强 Wu 武
semanticscholar   +1 more source

Ultrafast thin disk lasers: sub-100 fs pulse duration and carrier envelope offset detection

EPJ Web of Conferences, 2013
We present two milestone results that confirm that thin disk lasers are excellent candidates for driving extreme nonlinear optics experiments. In a first experiment using the broadband mixed sesquioxide gain material Yb:LuScO3, we demonstrate that thin ...
Huber Günter, Kränkel Christian, Beil Kolja, Golling Matthias, Schriber Cinia, Baer Cyrill R. E., Heckl Oliver H., Pekarek Selina, Saraceno Clara J., Südmeyer Thomas, Keller Ursula   +10 more
doaj   +1 more source

Stochastic processes, galactic star formation, and chemical evolution. Effects of accretion, stripping, and collisions in multiphase multi-zone models [PDF]

, 2005
This paper reports simulations allowing for stochastic accretion and mass loss within closed and open systems modeled using a previously developed multi-population, multi-zone (halo, thick disk, thin disk) treatment.
Casuso, Chiappini, Cignoni, Comins, Copi, Copi, D. Galli, de Mello, Feldman, Ferrini, Ferrini, Franco, G. Valle, Galli, Gerola, Grevesse, Hellsten, Hébard, Kroupa, Lejeune, Lubowich, Lynden-Bell, Matteucci, Pardi, Quilis, S. N. Shore, Schulman, Shore, Shore, Shore, Tinsley, Travaglio, Valle, Vidal-Madjar, Vollmer, Vollmer   +35 more
core   +2 more sources