Michael Schweiger

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Non-linear image reconstruction methods are desirable for applications in electrical impedance tomography (EIT) such as brain or breast imaging where the assumptions of linearity are violated. We present a novel non-linear Newton-Krylov method for solving large-scale EIT inverse problems, which has the potential advantages of improved robustness and(More)
With the advent of detailed numerical models, computing runtime can become excessive. We propose the facilitation of an innovative multi-level inverse-based LU preconditioning approach to improve computational efficiency while processing EIT system matrices. This combines static reordering and scaling, controlled growth of the inverse of triangular factors(More)
OBJECTIVES This in vitro study should assess the fracture resistance of veneered zirconia-based crowns with either luted or fused veneer. METHODS Thirty-two identical zirconia frameworks (IPS e.max ZirCAD; Ivoclar/Vivadent), were constructed (inLab 3.80; Sirona Dental Systems). All frameworks were veneered with CAD/CAM-fabricated lithium disilicate(More)
Malware has become an increasingly prevalent problem plaguing the Internet and computing communities. According to the 2012 Verizon Data Breach Investigations Report, there were 855 incidents of breach reported in 2011 with a massive 174 million records compromised in the process; 69% of those breaches incorporated malware in them some way, which was 20%(More)
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