We study a stabilization problem of linear uncertain systems with parametric uncertainties via feedback control over data-rate-constrained channels. The objective is to find the limitation on the amount of information that must be conveyed through the channels for achieving stabilization and in particular how the plant uncertainties affect it. We derive a necessary condition and a sufficient co...

This paper shows the experimental details of the stabilization scheme that allows full control of the repetition rate and the carrier-envelope offset frequency of a 10 GHz frequency comb based on a femtosecond Ti:sapphire laser. Octave-spanning spectra are produced in nonlinear microstructured optical fiber, in spite of the reduced peak power associated with the 10 GHz repetition rate. Improved...

Blanchard (2005) suggested that active interest rate policy might induce unstable dynamics in highly-indebted economies. We examine this in a dynamic general equilibrium model where Calvo-type price rigidities provide a rationale for inflation stabilization. Unstable dynamics can occur when the CB is aggressively raising the interest rate in response to higher expected inflation. The constraint...

AIM to establish a therapeutic strategy that will improve the prognosis and increase the survival rate in congenital diaphragmatic hernia. MATERIAL AND METHOD 14 congenital diaphragmatic hernias (incidence 1/1597 live births, 12 boys and 2 girls with a sex ratio of 6/1, 10 term infants and 4 preterm first degree, 11 natural births and 3 by caesarean section) admitted to the Clinic of Pediatri...

By considering a four-wheel-motor EV, the present paper addresses the EV stabilization using the advantages of electrical motorized wheels incorporation. The decoupling of the control of the active steering control (AFS) and the direct yaw moment control (DYC) as a way of controlling the vehicle’s body slip angle and its yaw rate simultaneously, also allows the stabilization of the lateral moti...

An approach to visual motion estimation and its stabilization suitable for longitudinal camera motion is proposed. Closed contours with their image pair-like displacements in a short image sequence are detected. The contour length change rate is estimated allowing the rst stabilization step a weighted averaging of displacements. Two further steps follow the grouping of similarly moving neighbou...

This paper deals with the exponential stabilization of a time-delay system with an average of the state as the output. A general stability theorem with a guaranteed exponential decay-rate based on a Wirtinger-based inequality is provided. Variations of this theorem for synthesis of a controller or for an observer-based control is derived. Some numerical comparisons are proposed with existing th...

Uncertain switched linear systems are known as an important class of control systems. Performance of these systems is affected by uncertainties and their stabilization is a main concern of recent studies. Existing work on stabilization of these systems only provides asymptotical stabilization via designing switching strategy and state-feedback controller. In this paper, considering a given infi...

The paper examines the optimal monetary policy when firms are constrained by information processing capability and infrequent price adjustments. Firms' information processing limit gives rise to imperfect knowledge about macroeconomic aggregates and endogenous information learning contingent on the monetary policy. Staggered price setting introduces the observed price duration and additional po...

Direct control of protein level enables rapid and efficient analyses of gene functions in crops. Previously, we developed the RDDK-Shield1 (Shld1) system in the model plant Arabidopsis thaliana for direct modulation of protein stabilization using a synthetic small molecule. However, it was unclear whether this system is applicable to economically important crops. In this study, we show that the...