Proportional lumpability and proportional bisimilarity

A Chaos-Based Communication Scheme Using Proportional and Proportional-Integral Observers

In this paper, we propose a new chaos-based communication scheme using the observers. The novelty lies in the masking procedure that is employed to hide the confidential information using the chaotic oscillator. We use a combination of the addition and inclusion methods to mask the information. The performance of two observers, the proportional observer (P-observer) and the proportional integra...

Model Diagnostics for Proportional and Partial Proportional Odds Models

Anti-windup Schemes for Proportional Integral and Proportional Resonant Controller

Problems like windup or rollover arise in a PI controller working under saturation. Hence antiwindup schemes are necessary to minimize performance degradation. Similar situation may occur in a Proportional Resonant (PR) controller in the presence of a sustained error input. Several methods can be employed based on existing knowledge on PI controller to counter this problem. In this paper few su...

Ordinal regression modelling between proportional odds and non-proportional odds

Proportional Control

'Nothing like the human hand' [1] is the title of Boivin's 1968 article reviewing current research and development in prosthetic hands at that time. This title holds true even today although technological advances have allowed amputees access to componentry offering greater function, cosmesis and efficiency of control. Childress also reminds us that hand replacement by means of prosthetic inter...