This paper compares two diierent types of control strategies used to safely implement supervisory commands of hybrid dynamical systems. Both approaches considered in this paper switch between members of a family of control agents to ensure that constraints on the plant state are not violated at any time. The rst approach is motivated by a hybrid system architecture outlined in 6] and uses a Fli...

this study has examined the organizational antecedents and consequences of hypocritical behaviors in interpersonal communication in najafabad public organizations. to this end, proportional questionnaires were distributed among 280 employees of organizations as a sample. to test the hypothesis, the data were fitted to structural equation models based on chi-square, normed chi-square, incrementa...

abstract background: supervisors should have certain characteristics and adequate preparation for their roles. yet, there are no well‑educated experts knowing about the supervisor’s role and responsibilities and how to train them. so, this research was conducted with the purpose of finding the factors affecting nursing supervisor training. materials and methods: this research is an inductive co...

A quite great progress of the supervisory control theory for discrete event systems (DES) has been made in the past nearly twenty years, and now, automata, formal language and Petri nets become the main research tools. This paper focus on the Petri nets based supervisory control theory of DES. Firstly, we review the research results in this field, and claim that there generally exists a problem...

Performance degradation due to interruptions is a critical issue, particularly when people are supervising highly autonomous systems in time and safety critical environments. Previous research in the development of automated support to help supervisory control operators resume task activities after an interruption has had limited success. This paper describes two new interruption recovery appro...

This paper presents a model-based supervisory control strategy for online control of building central cooling water systems to enhance their energy efficiency. Simplified chiller and cooling tower models are developed and used to predict the system energy performance, environment quality as well as the system response to the changes of control settings. A novel and simple optimization technique...

We consider a class of supervisory control problems that require infinite state supervisors and introduce Petri nets with inhibitor arcs (PN's) to model the supervisors. We compare this PN-based approach to supervisory control to automata-based approaches. The primary advantage of a PN-based supervisory controller is that a PN-based controller provides a finite representation of an infinite sta...

OBJECTIVE Supervisor-level policies and the presence of a manager engaged in an employee's need to achieve work-family balance, or "supervisory support," may benefit employee health, including self-reported pain. METHODS We conducted a census of employees at four selected extended care facilities in the Boston metropolitan region (n = 368). Supervisory support was assessed through interviews ...

Supervisory machine control is the high-level control in advanced manufacturing machines that is responsible for the coordination of manufacturing activities. Traditionally, the design of such control systems is based on finite state machines. An alternative, more flexible approach is based on task-resource models. This paper describes an approach for the migration of supervisory machine contro...