This letter addresses the problem of robust finite-time tracking control with prescribed performance for robot manipulators experiencing uncertain inertia and external disturbance. We develop a strategy that incorporates nonlinear $\boldsymbol {\mathcal {H}_{\inf...

This paper investigates politically connected firms in Germany. With the introduction of a new transparency law in 2007, information on additional income sources for all members of the German parliament became publicly available. We find that members of the conservative party (CDU/CSU) and the liberal party (FDP) are more likely to work for firms than members of left-wing parties (SPD and The L...

A considerable amount of interest has been shown by researchers in the control of pneumatic drives over the past decade, for two main reasons, firstly, the response is very slow and the inability to attain set points is high due to hystiresis and secondly, the dynamic model of the system is highly non-linear, which greatly complicates controller design and development. To address these problems...