Results 101 to 110 of about 2,153,493 (386)
In the Shadow of the Accretion Disk: Higher Resolution Imaging of the Central Parsec in NGC 4261 [PDF]
, 2001 The physical conditions in the inner parsec of accretion disks believed to orbit the central black holes in active galactic nuclei can be probed by imaging the absorption (by ionized gas in the disk) of background emission from a radio counterjet.
Ann E. Wehrle +9 more
core +3 more sources
Advanced Solid-State Photonics, 2007 The current status of the thin disk laser technology will be given for cw-operation and for pulsed-mode operation. Also the scaling laws and the scaling limits will be discussed in detail.
openaire +3 more sources
Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions
Advanced Functional Materials, EarlyView.This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian +7 more
wiley +1 more source
A Pseudo-Newtonian Stationary Circumbinary Slim Disk Model
The Astrophysical JournalWe present a pseudo-Newtonian stationary circumbinary slim disk model. We extend the slim disk formalism by including the binary tidal torque and solve the resulting steady-state equations to determine the circumbinary disk structure.
Sixiang Wen, Vasileios Paschalidis
doaj +1 more source
STAR FORMATION HISTORY IN THE GALACTIC THIN DISK
Odessa Astronomical Publications, 2007 We analyze the relations between the relative magnesium abundances in stars, [Mg/Fe], and their metallicities, Galactic orbital elements, and ages. The relative magnesium abundances in metal-poor thin-disk stars have been found to systematically decrease
V. A. Marsakov +2 more
doaj +1 more source
A Toy Model for Blandford-Znajek Mechanism [PDF]
, 1999 A toy model for the Blandford-Znajek mechanism is investigated: a Kerr black hole with a toroidal electric current residing in a thin disk around the black hole.
B. Carter +23 more
core +3 more sources
Advanced Functional Materials, EarlyView.This study introduces a novel multi‐scale scaffold design using L‐fractals arranged in Archimedean tessellations for tissue regeneration. Despite similar porosity, tiles display vastly different tensile responses (1–100 MPa) and deformation modes. In vitro experiments with hMSCs show geometry‐dependent growth and activity. Over 55 000 tile combinations
Maria Kalogeropoulou +4 more
wiley +1 more source
Revista Integración, 2008 The first fully integrated explicit exact solution of Einstein's field equations corresponding to the superposition of a counterrotating dust disk with a central black hole is presented.
Guillermo A. Gonzàlez +1 more
doaj +2 more sources
Radiation Transport Two-temperature GRMHD Simulations of Warped Accretion Disks
The Astrophysical Journal Letters, 2023 In many black hole (BH) systems, the accretion disk is expected to be misaligned with respect to the BH spin axis. If the scale height of the disk is much smaller than the misalignment angle, the spin of the BH can tear the disk into multiple ...
M. T. P. Liska +4 more
doaj +1 more source
Regenerative thin-disk amplifier for 300 mJ pulse energy.
Optics Express, 2016 A regenerative amplifier based on thin-disk technology has been upgraded and optimized. Within a CPA laser system chirped 1 ns pulses are amplified to more than 300 mJ pulse energy.
R. Jung, J. Tümmler, I. Will
semanticscholar +1 more source