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Modern Blast Furnace Ironmaking – An Introduction (Fourth Edition, 2020) describes the principles of the blast furnace process. As a starting point, the blast furnace is seen as a simple iron ore melter, while gradually the physical, chemical and metallurgical background of the blast furnace process is clarified. The book focuses on the control of the process with respect to thermal control, gas flow control and casthouse operation. In this book, all essential process details are described and a special focus is on cost optimization by low coke rates and on management of the process in case of disturbances and upsets. The optimization of the blast furnace is not only based on “best practice transfer”, but also requires conceptual understanding why a measure works in some cases and not in other cases. In other words, operational improvement is not only based on know–how, but as well on know–why. This publication can be used as an introductory text for students of metallurgy as well as for blast furnace operators and management.
The judgment that one forms of the theory and practice of penance in Christian antiquity will be largely determined by the interpretation which one puts upon these two treatises. On Penitence dates from Tertullian's Catholic period, and is a sermon addressed to the faithful on the subject of repentance and forgiveness. On Purity is one of his most violent Montanist treatises. In it he criticizes the policy the church follows in granting pardon to serious sins. +
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This volume presents a series of penetrating analyses of particular poems and problems of literary history illustrating the many sides of medieval poetry and the interactions of learned, popular and courtly traditions. The first and longest essay, 'Waltharius-Gaiferos', aims to characterize the diverse treatments of one of the major European heroic themes - in modes that include lay and epic, saga and ballad, and range from pre-Carolingian times to the Renaissance. There follow three interrelated essays on the medieval transformations of Ovid, and a larger group devoted to close reading of medieval lyrics. After discussing some brilliant Latin compositions, of the 9th-12th centuries, both sa...
The book describes the mechanisms involved in the maintenance of neuroendocrine-immune interactions in ageing. The lack of this maintenance leads to the appearance of age-related diseases (cancer, infections, dementia) and subsequent disability. The capacity of some hormones or nutritional factors in restoring and remodelling the neuroendocrine-immune response during ageing is reported presenting possible new anti-ageing strategies in order to reach healthy ageing and longevity.
Travel and pilgrimage have become central research topics in recent years. Some archaeologists and historians have applied globalization theories to ancient intercultural connections. Classicists have rediscovered travel as a literary topic in Greek and Roman writing. Scholars of early Judaism, Christianity, and Islam have been rethinking long-familiar pilgrimage practices in new interdisciplinary contexts. This volume contributes to this flourishing field of study in two ways. First, the focus of its contributions is on experiences of travel. Our main question is: How did travelers in the ancient world experience and make sense of their journeys, real or imaginary, and of the places they visited? Second, by treating Jewish, Christian, and Islamic experiences together, this volume develops a longue durée perspective on the ways in which travel experiences across these three traditions resembled each other. By focusing on "experiences of travel," we hope to foster interaction between the study of ancient travel in the humanities and that of broader human experience in the social sciences.
This volume deals with the comparative study of Old Germanic languages in the Low Countries, in the middle of the seventeenth century; with special attention to the work of the philologist and lawyer Jan van Vliet (1622-1666).