This book reports on a set of advances relating to nonlinear observer design, with a special emphasis on high-gain observers. First, it covers the design of filters and their addition to the observer for reducing noise, a topic that has been so far neglected in the literature. Further, it describes the adaptive re-design of nonlinear observers to reduce the effect of parametric uncertainty. It discusses several limitations of classical methods, presenting a set of successfull solutions, which are mathematically formalised through Lyapunov stability analysis, and in turn validated via numerical simulations. In the second part of the book, two applications of the adaptive nonlinear observers are described, such in the estimation of the liquid water in a hydrogen fuel cell and in the solution of a common cybersecurity problem, i.e. false data injection attacks in DC microgrids. All in all, this book offers a comprehensive report on the state-of-the-art in nonlinear observer design for energy systems, including mathematical demonstrations, and numerical and and experimental validations.
This book examines the relationship between archaeological tourism and professional archaeology. To do so, it explores the connection – most visibly through nationalism and global capitalism - from its origins in the early modern period to World War II. How separate is the development of archaeological tourism from that of the formation of archaeology as a discipline? And do the fields operate in two different worlds? Scholarly discussions have largely treated them as distinct fields with no connection, while histories of archaeology, in particular, have focused on aspects such as the history of archaeological discoveries, archaeological thought and, more recently, the political relationship between archaeology and nationalism and other ideologies. Largely missing from all these accounts has been an examination of how archaeology has been incorporated into society, for example through something that all humans enjoy – leisure – in the form of archaeological tourism. Moreover, just as histories of archaeology have largely ignored the connection between archaeology and tourism, so too has tourism in the reverse direction. Recent studies on tourism have centered on topics such as economy (sustainable and recession tourism) and new types of tourism (including ecotourism and medical tourism).
One of the earliest and most ambitious projects carried out by the Society of Jesus was the mission to the Christian kingdom of Ethiopia, which ran from 1557 to 1632. In about 1621, crucial figures in the Ethiopian Solomonid monarchy, including King Susenyos, were converted to Catholicism and up to 1632 imposing missionary churches, residences, and royal structures were built. This book studies for the first time in a comprehensive manner the missionary architecture built by the joint work of Jesuit padres, Ethiopian and Indian masons, and royal Ethiopian patrons. The work gives ample archaeological, architectonic, and historical descriptions of the ten extant sites known to date and includes hypotheses on hitherto unexplored or lesser known structures.
This book reports on a set of advances relating to nonlinear observer design, with a special emphasis on high-gain observers. First, it covers the design of filters and their addition to the observer for reducing noise, a topic that has been so far neglected in the literature. Further, it describes the adaptive re-design of nonlinear observers to reduce the effect of parametric uncertainty. It discusses several limitations of classical methods, presenting a set of successfull solutions, which are mathematically formalised through Lyapunov stability analysis, and in turn validated via numerical simulations. In the second part of the book, two applications of the adaptive nonlinear observers are described, such in the estimation of the liquid water in a hydrogen fuel cell and in the solution of a common cybersecurity problem, i.e. false data injection attacks in DC microgrids. All in all, this book offers a comprehensive report on the state-of-the-art in nonlinear observer design for energy systems, including mathematical demonstrations, and numerical and and experimental validations.
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