We have submitted Optimality gaps in asymptotic dimensioning of many-server systems, and it is currently under review. This is joint work between Jaron Sanders, Sem Borst, Johan van Leeuwaarden, and Guido Janssen. The arXiv preprint can be obtained via this link.
Today, I received a Certificate of nomination for the TU/e Final Project Award 2013, issued by the Department of Mathematics & Computer Science, Eindhoven University of Technology. I am very happy to have received this nomination! It is great to hear that my work was appreciated by the nominating jury.