Multi-atlas segmentation approach is one of the most widely-used image segmentation techniques in biomedical applications. There are two major challenges in this category of methods, i.e., atlas selection and label fusion. In this paper, we propose a novel multi-atlas segmentation method that formulates multi-atlas segmentation in a deep learning framework for better solving these challenges. T...

Abstract The role of natural fractures in future reservoir performance is prominent. fractured porous media composed an interconnected network and blocks the medium where occur various scales have a strong influence either when most flow concentrated them or they act as barriers. A general numerical model for discrete fracture networks (DFN) usually employed to handle observed wide variety prop...

Abstract We investigate the problem of fluid injection at constant pressure in a 2D Discrete Fracture Network (DFN) with randomly oriented and uniformly distributed frictionally-stable fractures. show that this shares similarities simpler scenario single planar shear fracture, investigated by Bhattacharya Viesca (2019); (2021) whose results are here extended to include closed form solutions for...

Natural fractured rocks usually contain background granular media and multi-scale fractures. The coordination number is a crucial factor to characterize the connection of microstructural elements. determination numbers for modeling essential interpret distribution cracks related micromechanical properties. We have built consistent workflow discrete element models (DEMs) coupled with fracture ne...

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 improve ...

The GRIDWELTEN project aims to evaluate and make recommendations regarding the use of high performance computing resources accessible through Grid software and architectures. The metric for this comparison will be the expectations and requirements of the user situated at the sites of the project partners and at other HPC-centers throughout Germany. Typical user groups will come from many areas ...

In 1993 the interconnection of three local ATM-based networks in Berlin was initiated by DeTeBerkom , the Gesellschaft für Mathematik und Datenverarbeitung (GMD) and the Technical University of Berlin (TUB). This paper describes the goals of this Berlin ATM LAN Interconnection (BALI) [Hartenthaler 94] and presents first results. Section 1 introduces the infrastructure of the BALI network in its...

Kathrin Zimmer has a diploma in Mathematics. She is participating in the project “Confidential Business Transactions on the Internet”. In this context her research focuses on Electronic Commerce. Abstract We are presenting a project supported by the DFN Verein, a registered association, and the German government (BMBF) which is called “Confidential Business Transactions on the Internet”. In thi...

Grid Computing has often been heralded as the next logical step after the World Wide Web. Users of Grids can access dynamic resources such as computer storage and use the computing resources of computers under the umbrella of a virtual organisation. Although Grid Computing is often compared to the World Wide Web, it is vastly more complex both in organisational and technical areas. This also ex...