H-tunneling is a ubiquitous phenomenon, relevant to fields from biochemistry materials science, but harnessing it for mastering the manipulation of chemical structures still remains nearly illusory. Here, we demonstrate how switch on by conformational control using external radiation. This outlined with triplet 2-hydroxyphenylnitrene generated in an N2 matrix at 10 K UV-irradiation azide precur...

A variable structure controller design for the tip position control of a exible one-link manipulator was presented in [7]. The control torque obtained using this design methodology was subjected to high frequency chattering. This makes it impossible to implement the controller in practice. The absence of a sign(S) function in the control law makes it impossible to implement the boundary layer t...

A bstract . We study the ergodic control problem of switching diffusions representing a typical hybrid system that arises in numerous applications such as fault-tolerant control systems, flexible manufacturing systems, etc. Under fairly general conditions, we establish the existence of a stable, nonrandomized Markov policy which almost surely minimizes the pathwise long-run average cost. We the...

The minimum time control of the circular restricted three-body problem is considered. Controllability is proved on an adequate submanifold. Singularities of the extremal flow are studied by means of a stratification of the switching surface. Properties of homotopy maps in optimal control are framed in a simple case. The analysis is used to perform continuations on the two parameters of the prob...