This article presents a detailed analysis and comparative performance evaluation of model reference adaptive control systems. In contrast to classical control theory, adaptive control methods allow to deal with time-variant processes. Inspired by the works [1] and [2], two methods based on the MIT rule and Lyapunov rule are applied to a linear first order system. The system is simulated and it ...

The architecture of the MMI2 demonstrators is presented, firstly as described by the authors and then in terms of the Reference Model for Intelligent Multimedia Presentation Systems (IMMPS). The analysis shows that the presentation pipeline of the MMI2 architecture can be readily described in terms of the Reference Model, without either significant parts of the Reference Model being unused, or ...

In this paper, we analyse how contextualised media can be used to support learning. Additionally, the advantages of contextualised learning and the types of learning that are fit to be supported are discussed. Our focus throughout the paper will be on lifelong learning, and the integration of formal and informal learning therein. However, we think, to this date, most of the research concerning ...

The paper presents performance and robustness analysis of the modified reference model MRAC (model reference adaptive control) or M-MRAC in short, which differs from the conventional MRAC systems by feeding back the tracking error to the reference model. The tracking error feedback gain in concert with the adaptation rate provides an additional capability to regulate not only the transient perf...

Knowledge retention (KR) has been identified as one of the critical factors for maintaining sustainable performance. However, until recently, most of the existing researches have focused on large organizations, while very few studies have mentioned this issue in Small and Medium-Sized Enterprises (SMEs). To redress some of this imbalance in the literature, this paper provides a reference model ...

Models for visualization are important, helping the developer and user to understand the visualization process; to follow the connections and the data paths through the system; and to reference and compare the functionality and the limitations of different systems or techniques. Display models specifically classify the data by what type of output can be created. Jacques Bertin [2] described a s...

Reference Models comprise information on best or common practices for reuse. However, they commonly originate from individual projects. Yet, project models are usually situational and often inconsistent due to a lack of expertise of the employees or the sheer complexity of the specification. Consequently, the transfer of these models into universal reference models is problematic at best. Stand...

Based on the Manufacturing Engineering Reference model, the relations between the various manufacturing tasks are examined. It appears that the underlying information of these tasks is of the utmost importance. The structures that are used to capture the information covering products, resources and orders are elaborated upon.