this paper, we study the output feedback stabilization for a scalar
conservation law with a nonlocal velocity, that models a highly
re-entrant manufacturing system as encountered in semi-conductor
production. By spectral analysis, we obtain a complete result on the
exponential stabilization for the linearized control system. Moreover,
by using a Lyapunov function approach, we also prove the exponential
stabilization results for the nonlinear control system in certain cases.