We report the crystal structures of two hexa-substituted mutants of a GroEL minichaperone that are more stable than wild-type by 7.0 and 6.1 kcal mol(-1). Their structures imply that the increased stability results from multiple factors including improved hydrophobic packing, optimised hydrogen bonding and favourable structural rearrangements. It is commonly believed that protein core residues ...

The problem of stabilizing steady gliding is critical for an underwater glider, which is subject to many non-negligible disturbances from the aquatic environment. In this paper, we propose a new systematic controller design and implementation approach for the stabilization problem, including a nonlinear, passivity-based controller and a nonlinear model-based observer, where the actuation is rea...

The present paper presents a new solution for the stabilization and disturbance attenuation problems of the oscillating eccentric rotor (OER), an extensively studied non-linear under-actuated mechanical system. Designing control law for such systems is a challenging task owing to the under-actuation property, which poses problems in exact feedback linearization. Presented non-linear controller ...

The phase synchronization problem requires each node to infinitely transfer from one phase to the next one under the restriction that at most two consecutive phases can appear among all nodes. In this paper, we propose a self-stabilizing algorithm under the parallel execution model to solve this problem for semi-uniform systems of general graph topologies. The proposed algorithm is memory-effic...

This paper describes a self-stabilizing version of an algorithm presented by A. Mazurkiewicz [Inform. Process. Lett. 61 (1997) 233–239] for enumerating nodes by local rules on an anonymous network. The result improves the reliability aspects of the original algorithm and underlines the importance of a non-ambiguous topology for a network.  2001 Elsevier Science B.V. All rights reserved.

The exit time and the exit location of a non-markovian diffusion is analyzed. More particularly, we focus on the so-called self-stabilizing process. The question has been studied by Herrmann, Imkeller and Peithmann in [HIP08]. Some results similar to the ones of Freidlin and Wentzell for classical diffusions have been proved. We aim to provide the same results by a method more intuitive. Our ar...

We examine the task of constructing self-stabilizing real-time decision systems, which take their input from an external environment, and present a series of results concerning compilers which force the property of self-stabilization onto such systems. We consider compilers that do and do not preserve termination applied to nite state and innnite state programs.

Dynamics in a distributed system are self-stabilizing if they are guaranteed to reach a stable state regardless of how the system is initialized. Game dynamics are uncoupled if each player’s behavior is independent of the other players’ preferences. For uncoupled players, recognizing an equilibrium is a distributed computational task. Self-stabilizing uncoupled dynamics, then, capture both resi...