Results 41 to 50 of about 124,456 (313)
Research Paper: Producing High Average Power Pulses From the Yb:YAG Thin-disk Active Medium with Acousto-optic Modulator [PDF]
فیزیک کاربردی ایرانIn recent years, thin-disk active media geometry has facilitated the development of pulsed and continuous laser sources with extremely high output powers. In this study, the technique of Q-switching utilizing an acousto-optic modulator and a Yb: YAG thin-
Kaveh Pasandideh +3 more
doaj +1 more source
The Destruction of Thin Stellar Disks Via Cosmologically Common Satellite Accretion Events [PDF]
Astrophysical Journal Letters 694 (2009) L98-L102, 2008 Most Galaxy-sized systems (M_host ~ 10^12 M_sun) in the LCDM cosmology are expected to have accreted at least one satellite with a total mass M_sat ~ 10^11 M_sun = 3M_disk in the past 8 Gyr. Analytic and numerical investigations suggest that this is the most precarious type of merger for the survival of thin galactic disks because more massive ...
arxiv +1 more source
Cr:ZnSe thin disk cw laser [PDF]
SPIE Proceedings, 2013 Abstract: A Thulium fiber laser pumped or diode laser stack pumped Cr:ZnSe thin disk cw InP multimode laser at 2.4 µm with an output power of 5 and 4 W, respectively, and - with optical-tooptical efficiencies of 10% will be presented. An experimentally verified and numerically simulated thermal lens ing induced and cyclic instability in the laser ...
Renz, Günther +4 more
openaire +3 more sources
Near-Infrared Structure of Fast and Slow Rotating Disk Galaxies [PDF]
, 2014 We investigate the stellar disk structure of six nearby edge-on spiral galaxies using high-resolution JHKs-band images and 3D radiative transfer models. To explore how mass and environment shape spiral disks, we selected galaxies with rotational velocities between 69 < Vrot < 245 km/sec, and two with unusual morphologies.
arxiv +1 more source
Journal of Topology and Analysis, 2019 We answer a question of Liokumovich–Nabutovsky–Rotman showing that if [Formula: see text] is a Riemannian 2-disk with boundary length [Formula: see text], diameter [Formula: see text] and area [Formula: see text] then [Formula: see text] can be filled by a homotopy [Formula: see text] with [Formula: see text] bounded by [Formula: see text].
openaire +3 more sources
Magnetically Torqued Thin Accretion Disks [PDF]
The Astrophysical Journal, 2007 9 sharper figs, updated ...
S. Rappaport, W. Kluzniak
openaire +4 more sources
Journal of Fluid Mechanics, 2023 We experimentally investigate the settling of millimetre-sized thin disks in quiescent air. The range of physical parameters is chosen to be relevant to plate crystals settling in the atmosphere: the diameter-to-thickness aspect ratio is$\chi =25\unicode{x2013}60$, the Reynolds numbers based on the disk diameter and fall speed are$Re=O(10^2)$and the ...
Amy Tinklenberg +2 more
openaire +1 more source
Black Hole Accretion with Saturated Magnetic Pressure and Disk Wind
The Astrophysical Journal, 2023 We construct an analytical black hole accretion disk model that incorporates both magnetic pressure and disk wind, which are found to be important from numerical simulations.
Jiahui Huang +3 more
doaj +1 more source
Numerical and Experimental Analysis of Yb:YAG Thin Disk Regenerative Amplifier
IEEE Photonics Journal, 2021 We present an numerical and experimental analysis of a Yb:YAG thin disk regenerative amplifier. Group velocity dispersion, third order dispersion, and self-phase modulation (SPM) effects are considered in the simulations of the amplification process.
Di Sun +6 more
doaj +1 more source
The Galactic thick and thin disks: differences in evolution [PDF]
, 2006 Recent observations demonstrate that the thin and thick disks of the Galaxy have different chemical abundance trends and evolution timescales. The relative abundances of $\alpha$-elements in the thick Galactic disk are increased relative to the thin disk. Our goal is to investigate the cause of such differences in thick and thin disk abundances.
arxiv +1 more source