This paper employs the Input-to-State Stability (ISS) framework to investigate the robustness of discrete-time Piece-Wise Affine (PWA) systems in closed-loop with Model Predictive Controllers (MPC), or hybrid MPC for short. We show via an example taken from literature that stabilizing hybrid MPC can generate MPC values functions that are not ISS Lyapunov functions for arbitrarily small additive...

PURPOSE To examine reductions in performance on auditory tasks by aphasic and neurologically intact individuals as a result of concomitant magnetic resonance imaging (MRI) scanner noise. METHOD Four tasks together forming a continuum of linguistic complexity were developed. They included complex-tone pitch discrimination, same-different discrimination of minimal pair syllables, lexical decisi...

The design of microbial production processes relies on rational choices for metabolic engineering of the production host and the process conditions. These require a systematic and quantitative understanding of cellular regulation. Therefore, a novel method for dynamic flux identification using quantitative metabolomics and (13)C labeling to identify piecewise-affine (PWA) flux functions has bee...

Model Predictive Control (MPC) is the de facto standard in advanced industrial automation systems. There are two main formulations of the MPC algorithm: an implicit one and an explicit MPC one. The first requires an optimization problem to be solved on-line, which is the main limitation when dealing with hard real-time applications. As the implicit MPC algorithm cannot be guaranteed in terms of...

Objectives: The purpose of this study was to investigate the differential performance on musical chord and grammaticality judgement tasks in post-stroke aphasia. accuracy task were analyzed, correlation between severity aphasia examined. Methods: Fourteen individuals with fifteen adults without participated study. subject listened a presented voice asked determine whether connection natural the...

PURPOSE This study investigated whether computers are a useful tool in the assessment of people with aphasia (PWA). Computerized and traditionally administered versions of tasks were compared to determine whether (a) the scores were equivalent, (b) the administration was comparable, (c) variables such as age affected performance, and (d) the participants' perceptions of the computerized and tra...

BACKGROUND Vascular dysfunction is highly prevalent if not ubiquitous in patients with hypertension. We compared two different measures of vascular function obtained from digital volume waveforms with measures of ventricular-vascular load derived from 24-hour blood pressure (BP) recordings in patients with hypertension. METHODS Digital pulsatile volume waveforms were captured via plethysmogra...

Cardiovascular responses to hemodialysis have been characterized by invasive monitoring techniques. These techniques are not feasible for evaluation of hemodynamic status during dialysis in the outpatient setting. In this study, we used pulse waveform analysis (PWA), a noninvasive tool designed for the ambulatory setting, to assess hemodynamic responses of dialysis treatments in 27 stable subje...