PURPOSE This article describes preparation and characterization of beads of alginate containing probiotic bacteria of Lactobacillus acidophilus DMSZ20079. METHODS Fourteen formulations using different alginate (ALG) and CaCl2 concentrations as well as hardening times were prepared using extrusion technique. The prepared beads were characterized in terms of size, morphology, encapsulation effi...

We present a mathematical model for the laser surface hardening of steel. It consists of a nonlinear heat equation coupled with a system of ve ordinary diierential equations to describe the volume fractions of the occuring phases. Existence, regularity and stability results are discussed. Since the resulting hardness can be estimated by the volume fraction of martens-ite, we formulate the probl...

Nowadays control-flow hijacking attacks represents the highest software-based security threat [16]. We want to develop a tool that can measure the exact attack surface reduction w.r.t. the attack, Counterfeit Object-Oriented Programming (COOP) [8]. This attack is particularly hard to defend against since traditional Control Flow Integrity (CFI) [1] approaches and hardware based shadow stacks [1...