The e-value modeling tool was developed for the design of a value proposition for virtual organizations. However, it is less suitable for designing the control structure of the virtual organization. We show how e-value can be extended using legal concepts such as ownership, possession, usufruct and license. We also introduce value object transfer diagrams that show the transfers of value object...

This paper provides necessary and sufficient conditions for several forms of controlled system reliability. For comparison purposes, past results on the reliability analysis of controlled systems are reviewed and several of the past results are shown to be either conservative or have exponential complexity. For systems with real and complex uncertainties, conditions for robust reliable stabilit...

The quantification of model uncertainty becomes increasingly important as robust control is an important tool for control system design and analysis. This paper presents an algorithm to characterize the model uncertainty in terms of parametric and nonparametric uncertainties directly from inputloutput data. We focus on the quantification of parametric uncertainty, which is represented as an int...

System identification is an important area in process control and statistics. Identification of transfer function parameters provides significant benefits for research and in the design of closed-loop control systems. Despite over six decades of research and applications of system identification, only a handful of methods are currently available. Most current methods are somewhat complex and th...

The purpose of introducing a combined cycle with gas turbine in power plants is to reduce losses of energy, by effectively using exhaust gases from the gas turbine to produce additional electricity or process. The efficiency of a combined power plant with the gas turbine increases, exceeding 50%, while the efficiency of traditional steam turbine plants is approximately 35% to 40%. Up to the pre...

In earlier chapters we have seen that the Laplace transform provides a convenient way of analyzing the dynamic behavior of continuous-time systems. The Laplace transform is also applicable to discrete-time systems but is somewhat awkward to use. Thus we consider a related transform for discrete-time systems, the z-transform. The z-transform has the same utility as the Laplace transform in that ...

Pseudospectra associated with the standard and generalized eigenvalue problems have been widely investigated in recent years. We extend the usual definitions in two respects, by treating the polynomial eigenvalue problem and by allowing structured perturbations of a type arising in control theory. We explore connections between structured pseudospectra, structured backward errors, and structure...

The aim of this communication is to show how, depending on the type of the control law (static or dynamic), some fine structures (internal or input-output ones) have to be known precisely, since they completely characterize the solvability of control problems like decoupling, disturbance decoupling or model matching, . . . . These structures mainly describe zeros (finite and at infinity) and ke...

In this article, bilateral teleoperation systems under communication time-delay are analyzed. Necessary and sufficient conditions guarantee the stability of the global system for any communication time-delay are firstly derived. Then, based on these conditions, weighting function on the slave system is obtained. Therefore, the problem of finding a position controller for the slave system which ...

The popularity of REST grows more and more and so does the need for fine-grained access control for RESTful services. Attribute Based Access Control (ABAC) is a very generic concept that covers multiple different access control mechanism. XACML is an implementation of ABAC based on XML and is established as a standard mechanism. Its flexibility opens the opportunity to specify detailed security...