due to the changes which may occur in their parameters, systems are usually demonstrated by some subsystems for different conditions. this paper employs modified petri nets (mpn) to model theses subsystems and makes it simple to analyze them. in this method, first, the continuous transfer function is converted to a discrete transfer function and then, by mpn, system is modeled and analyzed. all...

Accidents involving rotating equipment in chemical, petrochemical, petroleum, and gas plants can result in damage to other process equipment and catalysts along with lost production. Conversely, process upsets, process instrumentation failure, or failures of other process equipment can result in damage to rotating equipment. An effective rotating equipment loss prevention program will be an int...

Embedded software design for mechatronic systems is becoming an increasingly time-consuming and error-prone task. In order to cope with the heterogeneity and complexity, a systematic model-driven design approach is needed, where several parts of the system can be designed concurrently. There is however a trade-off between concurrency efficiency and integration efficiency. In this paper, we pres...

This paper describes the application of self-optimizing control to a large scale process, the HDA plant. The idea is to select controlled variables which when kept constant lead to minimum economic loss. In order to avoid the combinatorial problem common to the selection of outputs/measurements for such large plants, applications of singular value decomposition (SVD) based methods are used whic...

In this paper, we address the problem of systematic privacy policy and privacy architecture design. We focus on two relevant aspects of privacy, namely, accountability and personal data control. We propose a systematic design approach of privacy policies adapting the current international data protection regulations, as well as an automated privacy architectures generation method from the corre...

A new approach to control structure analysis and design for nonlinear multivariable systems is proposed in this paper. By integrating the concept of gap metric, factorial design and multivariate projection methods, a systematic analysis of control structures, operating conditions and operating regime based control strategies can be established. The application to an extractive fermentation proc...