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 ...

      Many large oil and gas fields in the most productive world regions happen to be fractured. The exploration and development of these reservoirs is a true challenge for many operators. These difficulties are due to uncertainties in geological fracture properties such as aperture, length, connectivity and intensity distribution. To successfully address these challenges, it is paramount to im...

CORRECTION article Front. Earth Sci., 06 October 2021 | https://doi.org/10.3389/feart.2021.777904

This paper proposes a method for quantitative integration of seismic (elastic) anisotropy attributes with reservoir performance data as an aid in characterization of systems of natural fractures in hydrocarbon reservoirs. This method is demonstrated through application to history matching of reservoir performance using synthetic test cases. Discrete Feature Network (DFN) modeling (Dershowitz et...