Beobachtung eines Meteors 1898 Aug. 9

Interpretation von Videobildfolgen zur Beobachtung artikularer Bewegung von Personen anhand eines generischen 3D-Objektmodells

Photoacoustic Sounds from Meteors

Concurrent sound associated with very bright meteors manifests as popping, hissing, and faint rustling sounds occurring simultaneously with the arrival of light from meteors. Numerous instances have been documented with -11 to -13 brightness. These sounds cannot be attributed to direct acoustic propagation from the upper atmosphere for which travel time would be several minutes. Concurrent soun...

Internetzensur: Methoden und deren Beobachtung

ZUSAMMENFASSUNG In der vorliegenden Arbeit geht es um Internetzensur im Sinne von Internetausfällen, wie sie auf Anordnung von den Regierungen in Ägypten und Libyen zu Beginn des Jahres 2011 im Zusammenhang mit den dort auftretenden Revolutionen passierten. Im Referenzpaper [1] wurden diese durch BGP-Routenaktualisierungen und unangeforderten Datenverkehr (Internet Background Radiation) in Dark...

On Meteors, Earthworms and Wimps

We study a model of mass redistribution on a finite graph. We address the questions of convergence to equilibrium and the rate of convergence. We present theorems on the distribution of empty sites and the distribution of mass at a fixed vertex. These distributions are related to random permutations with certain peak sets.

Verteilte Beobachtung von Ereignissen im Nexus-Lokationsdienst

The goal of the Nexus Event Service is to detect state change in services including the distributed Nexus Location Service. So far only state change on an isolated location service node can be detected. This work presents a model for distributed observation of events tailored to Nexus. With this model state change in a distributed set of location service nodes can be detected.