253 research outputs found
A novel method of generating tunable underlying network topologies for social simulation
We propose a method of generating different scale-free networks, which has
several input parameters in order to adjust the structure, so that they can
serve as a basis for computer simulation of real-world phenomena. The
topological structure of these networks was studied to determine what kind of
networks can be produced and how can we give the appropriate values of
parameters to get a desired structure.Comment: Originally presented at the 2013 IEEE 4th International Conference on
Cognitive Infocommunications (CogInfoCom
Support Vector Machine with Wavelet Decomposition Method for Fault Diagnosis of Tapered Roller Bearings by Modelling Manufacturing Defects
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Rapid and Bright Stellar-mass Binary Black Hole Mergers in Active Galactic Nuclei
The Laser Interferometer Gravitational-Wave Observatory, LIGO, found direct
evidence for double black hole binaries emitting gravitational waves. Galactic
nuclei are expected to harbor the densest population of stellar-mass black
holes. A significant fraction () of these black holes can reside in
binaries. We examine the fate of the black hole binaries in active galactic
nuclei, which get trapped in the inner region of the accretion disk around the
central supermassive black hole. We show that binary black holes can migrate
into and then rapidly merge within the disk well within a Salpeter time. The
binaries may also accrete a significant amount of gas from the disk, well above
the Eddington rate. This could lead to detectable X-ray or gamma-ray emission,
but would require hyper-Eddington accretion with a few percent radiative
efficiency, comparable to thin disks. We discuss implications for gravitational
wave observations and black hole population studies. We estimate that Advanced
LIGO may detect such, gas-induced binary mergers per year.Comment: 9 pages, 2 figure
Classification of economic activities in Colombia according to workplace accident and disease rates using a data clustering algorithm
Katapult: egy egyszerű demonstrációs eszköz a statisztikai módszerek és a folyamatfejlesztés oktatásában = Catapult : Simple Tool in Teaching Statistics an Process Improvement
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