A Goal-driven Auto-Configuration Tool for the Distributed Workflow Management System Mentor-lite

The Mentor-lite prototype has been developed within the research project "Architecture, Configuration, and Administration of Large Workflow Management Systems" funded by the German Science Foundation ({DFG}). In this paper, we outline the distributed architecture of Mentor-lite and elaborate on a goal-driven autoconfiguration tool for Mentor-lite and similar workflow management systems ({WFMS}). This tool aims to recommend an appropriate system configuration in terms of replicated workflow, application, and communication servers, so as to meet given goals for performance, availability, and performability at low system costs. The demo will show the monitoring capabilities of Mentor-lite and the various components of the autoconfiguration tool

Disequilibrating azobenzenes by visible-light sensitization under confinement

Photoisomerization of azobenzenes from their stable E isomer to the metastable Z state is the basis of numerous applications of these molecules. However, this reaction typically requires ultraviolet light, which limits applicability. In this study, we introduce disequilibration by sensitization under confinement (DESC), a supramolecular approach to induce the E-to-Z isomerization by using light of a desired color, including red. DESC relies on a combination of a macrocyclic host and a photosensitizer, which act together to selectively bind and sensitize E-azobenzenes for isomerization. The Z isomer lacks strong affinity for and is expelled from the host, which can then convert additional E-azobenzenes to the Z state. In this way, the host–photosensitizer complex converts photon energy into chemical energy in the form of out-of-equilibrium photostationary states, including ones that cannot be accessed through direct photoexcitation