Previous studies have computed and modeled fluid flow through fractured rock with the parallel plate approach where the volumetric flow per unit width normal to the direction of flow is proportional to the cubed aperture between the plates, referred to as the traditional cubic law. When combined with the square root relationship of displacement to length scaling of opening-mode fractures, total...

This paper summarizes the advances made by the DiFrancesco and Noble (DFN) model of cardiac cellular electrophysiology, which was published in Philosophical Transactions B in 1985. This model was developed at a time when the introduction of new techniques and provision of experimental data had resulted in an explosion of knowledge about the cellular and biophysical properties of the heart. It a...

Two parallelized hybrid methods are presented for single-function optimization problems with side constraints. The optimization problems are difficult not only due to possible existence of local minima and nonsmoothness of functions, but also due to the fact that objective function and constraint values for a solution vector can only be obtained by querying a black box whose execution requires ...

We propose MRU (Multi-Range Reasoning Units), a new fast compositional encoder for machine comprehension (MC). Our proposed MRU encoders are characterized by multi-ranged gating, executing a series of parameterized contractand-expand layers for learning gating vectors that benefit from long and short-term dependencies. The aims of our approach are as follows: (1) learning representations that a...

Die schnelle Inbetriebnahme von Rechnern, die flexible Nutzung von Maschinen mit verschiedenen Betriebssystemen und Softwareausstattungen sind selbst nach vielen Jahren noch nicht optimal gelöst. Hierfür bietet ein netzwerkbasierter Service mit einer breiten Auswahl zu startender Systeme und Installationsassistenten Abhilfe. Schnelle Datennetze, ein kompaktes Quickstart-OS auf Linux-Basis, ein ...

In this study, variable injection-rate technology was numerically investigated in a pre-existing discrete fracture network (DFN) formation, the Tarim Basin in China. A flow-stressdamage (FSD) coupling model has been used in an initial attempt towards how reservoir response to variable injection-rates at different hydraulic fracturing stages. The established numerical model simultaneously consid...

The aim of the LeMO project was to create a multimedia information system on 20th century German history in the Internet. This work was carried out in a joint project by the German Historical Museum in Berlin, the Haus der Geschichte of the Federal Republic of Germany in Bonn and the Fraunhofer Institute for Software and Systems Engineering ISST in Berlin. The LeMO system provides various optio...

Structural and topological information play a key role in modeling of flow through fractured rock. Discrete fracture network (DFN) computational suites such as dfnWorks [23] are designed to simulate flow and transport in such media. Transport calculations that use a particle tracking method reveal that a small backbone of fractures exists where most transport occurs providing a significant redu...