Volker Weitbrecht

TL;DR: Consumer exposure to the total amount of silver released from the food containers is low in comparison with the background silver exposure of the general population, but since natural background concentrations are only known for ionic silver, the exposure to silver nanoparticles is not directly comparable with a safe background level.

TL;DR: In this article, a particle image velocimetry (PIV) was used to measure the flow dynamics at the surface of shallow water flows over a large measuring field, which made it possible to track two-dimensional large coherent structures, which are dominating flow phenomena in many shallow flow applications.

TL;DR: In this paper, the exchange process between a river and dead-water zones created by groin fields is modeled using particle image velocimetry (PIV) at the water surface to capture the dynamics of the flow field and planar concentration analysis (PCA) to determine the depth integrated mass fluxes of dissolved tracer.

TL;DR: In this paper, a detailed experimental data of high-temporal and spatial resolution on the breach of homogeneous non-cohesive embankments due to overtopping was obtained.

TL;DR: In this article, the results of an experimental study conducted in a water solar flat plate collector with laminar flow conditions to analyze the flow distribution through the collector have been presented, where LDA measurements were carried out to determine the discharge in each riser, as well as pressure measurements to investigate the relation between junction losses and the local Reynolds number.