Stefan Müllegger,1,* Eva Rauls,2,† Uwe Gerstmann,2 Stefano Tebi,1 Giulia Serrano,1 Stefan Wiespointner-Baumgarthuber,1 Wolf Gero Schmidt,2 and Reinhold Koch1 1Institute of Semiconductor and Solid State Physics, Johannes Kepler University Linz, 4040 Linz, Austria 2Lehrstuhl für Theoretische Physik, University of Paderborn, 33098 Paderborn, Germany (Received 8 October 2015; revised manuscript rec...

Multi-parametric cardiovascular magnetic resonance imaging detects subclinical myocardial involvement in patients diagnosed with phaeochromocytoma Vanessa M Ferreira, Mafalda Marcelino, Stefan K Piechnik, Claudia Marini, Theodoros D Karamitsos, Jane M Francis, Jayanth R Arnold, Radu Mihai, Julia D Thomas, Maria Herincs, Marta Korbonits, Zaki Hassan-Smith, Wiebke Arlt, Niki Karavitaki, Ashley Gr...

Stefan Jentsch, whose unusual creativity and trailblazing work changed forever the fields of ubiquitin biology, DNA repair, splicing, and autophagy, sadly passed away in Munich on October 29 after a short and severe illness. Stefan was born in Berlin on May 29, 1955. Following his school and university years, Stefan embarked on his graduate thesis in his still-divided hometown and joined Thomas...

The interface between ice and fluid can become unstable devolve into cyclic steps bounded by hydraulic jumps. These are created flowing water or wind over the surface. This study presents an analytical model to reproduce We apply four governing equations: momentum equation, continuity heat transfer equation in water, energy balance (the Stefan equation). After calculation, we generate variation...

A method combining features of front-tracking methods and fixed-domain methods is presented to model dendritic solidification of pure materials. To explicitly track the interface growth and shape of the solidifying crystals, a fronttracking approach based on the level set method is implemented. To easily model the heat and momentum transport, a fixed-domain method is implemented assuming a diff...

Mathematical background: The regularity of free boundaries has been extensively studied over the last thirty years and the literature on the Stefan problem is vast. This problem however (that is, the Stefan problem without sign restriction) was, to the author’s knowledge, first studied by L. A. Caffarelli, A. Petrosyan and H. Shahgholian in [CPS]. The authors of [CPS] showed that a solution is ...

We investigate the homogenization of Stefan-type problems with oscillating diffusion coefficients. Both cases of periodic and random (stationary ergodic) medium are considered. The proof relies on the coincidence of viscosity solutions and weak solutions (which are the time derivatives of the solutions of an obstacle problem) for the Stefan problem. This coincidence result is of independent int...

Causative relations between human papilloma virus infection and cervical intraepithelial neoplasia Stefan Miladinov Kovachev & Victor Dimitrov Slavov To cite this article: Stefan Miladinov Kovachev & Victor Dimitrov Slavov (2016): Causative relations between human papilloma virus infection and cervical intraepithelial neoplasia, Biotechnology & Biotechnological Equipment, DOI: 10.1080/13102818....

In this work, we investigate the dynamic response of a solid phase formed during unidirectional solidification below a cooling top wall of a square cavity filled with distilled water and subjected to timevarying heating temperatures at its bottom wall. Assuming a quasisteady state condition, we have formulated a one-dimensional model that predicts the average thickness of the forming solid phas...

We consider a fully practical finite element approximation of the following degenerate system ∂ ∂t ρ(u) −∇.(α(u)∇u) σ(u) |∇φ|, ∇.(σ(u)∇φ) = 0 subject to an initial condition on the temperature, u, and boundary conditions on both u and the electric potential, φ. In the above ρ(u) is the enthalpy incorporating the latent heat of melting, α(u) > 0 is the temperature dependent heat conductivity, an...