A real-time method is presented to adoptively estimate three-dimensional unmodeled external torques acting on a spacecraft. This is accomplished by forcing the tracking error dynamics to follow the Lyapunov function underlying the feedback control law. For the case where the external torque is...

Structural classification and parameter estimation (SCPE) methods have been used for studying single-input single. output (SISO) parallel and feedback nonlinear system models from input-output (I-O) measurements. The uniqueness of the I-O mappings of different models and parameter uniqueness of...

This paper demonstrates the utility of systems and control theory in the analysis of economic systems. Two applications demonstrate how the analysis of simple dynamic models sheds light on important practical problems. The first problem considers the design of a retail laboratory, where the...

There is great interest in the application of technological solutions driven by a thriving CRM industry. It has been shown the more effective the implementation of SFA, the greater its impact on increased sales performance. Previous research on SFA adoption has focused on the individual as the...

Der Zweite Statusbericht zum Stadtumbau Ost stellt die Ergebnisse einer Befragung der am Stadtumbau Ost beteiligten Kommunen vor und zieht nach den ersten fünf Jahren Programmlaufzeit Bilanz über den derzeit erreichten Stand der Programmumsetzung. So sind erste positive Effekte des Stadtumbaus...

Im ersten Statusbericht

Völklingen muss sich neue Ziele setzen, und zwar solche, die Wettbewerbsvorteile bringen. Dies gilt sowohl für den gewerblichen wie privaten Bereich. Dazu sollte zunächst eine Trendanalyse erfolgen.

The ubiquitous drive towards a more sustainable future has resulted in major changes in the planning anddesign of urban environments. Government strategies on sustainable development, published in 1999and 2005, are thought to be driving the development of new legislations that are aimed at...

The present paper is about to analyze the importance of the urban image while establishing settlements for tourism business. The survey shows out the close connection which exists between promoting a location, the urban image and the city development. The paper follows three themes: To what...

Nitrate pollution from agriculture is an important environmental problem, caused bythe excessive use of inorganic fertilizers. The internalization of this externality, via a tax onmineral nitrogen, could lead to a second best solution, reducing nitrate emissions. Severalauthors suggest that a...