Das D-Grid Ressourcen Zentrum Ruhr (DGRZR) stellt den D-Grid Communities seit 2008 monatlich Rechenkapazität in Höhe von 1,4 Mio. CPUh zur Verfügung. Im Vergleich mit vielen anderen D-Grid Ressourcen hebt sich das DGRZR durch zwei Besonderheiten hervor: i) alle betriebenen Dienste sind in virtuelle Maschinen gekapselt und ii) lehnt sich die Installation sehr nah an die durch D-Grid vorgeschlage...

Zusammenfassung: VIOLA (Vertically Integrated Optical Testbed for Large Applications) ist ein vom BMBF im Rahmen der e-Science-Initiative gefördertes Projekt. Unter der Federführung des DFN arbeiten das Forschungszentrum Jülich, das Forschungszentrum caesar in Bonn, die Fraunhofer-Institute IMK und SCAI in Sankt Augustin, die Universität Bonn, die FH Bonn-Rhein-Sieg in Sankt Augustin, die RWTH ...

Definition 1. Let < , > be a C∞ Riemannian metric on M and | · | its induced norm on TxM for each x ∈ M . We say that f ∈ D is Anosov if 1. the tangent bundle of M splits in a Whitney direct sum of continuous subbundles TM = E ⊕ E, where E and E are Df -invariant, 2. there exists constants c, c′ > 0 and 0 < λ < 1 such that |Dfn xv| < c λn|v| |Df−n x w| < c′ λn|w| for all x ∈ M , v ∈ E x, and w ...

BACKGROUND While keyword based queries of databases such as Pubmed are frequently of great utility, the ability to use regular expressions in place of a keyword can often improve the results output by such databases. Regular expressions can allow for the identification of element types that cannot be readily specified by a single keyword and can allow for different words with similar character ...

Oil and gas exploration professionals have begun to focus more on unconventional oil reserves in recent years as a result of their increased efforts. Fractures significant impact the permeability connectivity reservoirs crucial component rock mechanics hydraulics, which directly affects production gas. The identification fracture development zones or micro faults, well how adequately define fra...