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Showing 1 - 21 of 21 matches in All Departments
Electrical steels are critical components of magnetic cores used in applications ranging from large rotating machines, including energy generating equipment, and transformers to small instrument transformers and harmonic filters. Presented over two volumes, this comprehensive handbook provides full coverage of the state-of-the-art in electrical steels. Volume 2 describes performance and outlines applications of electrical steels. Topics covered include localised characteristics of electrical steels; practical properties of electrical steels; other electrical steels; prediction of losses in electrical steels; application of electrical steels in transformer cores; applications of electrical steels in rotating electrical machines; non-sinusoidal magnetisation and applications; magnetic building factors in electrical steel cores; use of amorphous ribbon and nano-materials in transformer cores; electrical machine core vibration and noise; approaches to predictions and measurements of flux density and loss distributions in electrical machine cores; the application of international standards to magnetic alloys and steels; electrical steels and renewable energy systems; environmental impact of electrical steels; and typical performance data of commercial electrical steels. The companion Volume 1 covers the fundamentals and basic concepts of electrical steels.
Electrical steels are critical components of magnetic cores used in applications ranging from large rotating machines, including energy generating equipment, and transformers to small instrument transformers and harmonic filters. Presented over two volumes, this comprehensive handbook provides full coverage of the state-of-the-art in electrical steels. Volume 1 covers the fundamentals and basic concepts of electrical steels. Topics covered include soft magnetic materials; basic magnetic concepts; magnetic domains, energy minimisation and magnetostriction; methods of observing magnetic domains in electrical steels; electromagnetic induction; fundamentals of a.c. signals; losses and eddy currents in soft magnetic materials; rotational magnetisation and losses; anisotropy of iron and its alloys; magnetic circuits; the effect of mechanical stress on loss, permeability and magnetostriction; magnetic measurements on electrical steels; background to modern electrical steels; production of electrical steels; amorphous and nano-crystalline soft magnetic materials; nickel-iron, cobalt-iron and aluminium-iron alloys; consolidated iron powder and ferrite cores; and temperature and irradiation dependence of magnetic and mechanical properties of soft magnetic materials. The companion Volume 2 describes performance and outlines applications.
"Why bother with history? Keith Jenkins has an answer. He helps us re-think the "end of history," as signalled by postmodernity. Readers may disagree with him, but he never fails to provoke debate about the future of the past." Joanna Bourke, Professor of History, Birkbeck College Keith Jenkins work on historical theory is renowned; this collection presents the essential elements of his work over the last fifteen years. Here we see Jenkins address the difficult and complex question of defining the limits of history. The collection draws together the key pieces of his work in one handy volume, encompassing the ever controversial issue of postmodernism and history, questions on the end of history and radical history into the future. Exchanges with Perez Zagorin and Michael Coleman further illuminate the level of debate that has surrounded postmodernism, and which continues to do so. An extended introduction and abstracts which contextualize each piece, together with a foreword by Hayden White and an afterword by Alun Munslow, make this collection essential reading for all those interested in the theory and practice of history and its development over the last few decades.
"Why bother with history? Keith Jenkins has an answer. He helps us re-think the "end of history," as signalled by postmodernity. Readers may disagree with him, but he never fails to provoke debate about the future of the past." Joanna Bourke, Professor of History, Birkbeck College Keith Jenkins? work on historical theory is renowned; this collection presents the essential elements of his work over the last fifteen years. Here we see Jenkins address the difficult and complex question of defining the limits of history. The collection draws together the key pieces of his work in one handy volume, encompassing the ever controversial issue of postmodernism and history, questions on the end of history and radical history into the future. Exchanges with Perez Zagorin and Michael Coleman further illuminate the level of debate that has surrounded postmodernism, and which continues to do so. An extended introduction and abstracts which contextualize each piece, together with a foreword by Hayden White and an afterword by Alun Munslow, make this collection essential reading for all those interested in the theory and practice of history and its development over the last few decades.
Written by some of the world's leading historians and theorists of history, Manifestos for History draws together a series of manifestos that address the question of what kinds of histories we ought to be considering and making in and for the twenty-first century. With a foreword by Joanna Bourke and an afterword by Hayden White, these manifestos - critical, innovative, reflexive, inspirational - are absolutely essential reading, not just for those embarking on the study of history, but for all those who would think seriously about 'the nature of history' in its present and possible future forms. This collection establishes a benchmark for all future considerations upon the discourse of history.
Written by some of the world s leading historians and theorists of history, Manifestos for History draws together a series of manifestos that address the question of what kinds of histories we ought to be considering and making in and for the twenty-first century. With a foreword by Joanna Bourke and an afterword by Hayden White, these manifestos critical, innovative, reflexive, inspirational are absolutely essential reading, not just for those embarking on the study of history, but for all those who would think seriously about the nature of history in its present and possible future forms. This collection establishes a benchmark for all future considerations upon the discourse of history.
The question of what the nature of history is, is now a key issue
for all students of history. It is now recognized by many that the
past and history are different phenomena and that the way the past
is actively historicized can be highly problematic and contested.
Older metaphysical, ontological, epistemological, methodological
and ethical assumptions can no longer be taken as read.
"Why History?" is a compelling introduction to the issue of history
and ethics. Designed to provoke discussion, the book asks whether
and why a good knowledge and understanding of the past is
desirable. In the context of current postmodern thinking, Keith
Jenkins suggests that the goal of "learning lessons from the past"
actually means learning lessons from stories written by historians
and others. If the past as history has no foundation, can anything
ethical be gained from history?
In, "On "What is History?"" Keith Jenkins expands on his highly
successful "Rethinking History" and bring the "history question" up
to date. The author argues that the older modernist texts,
including those of Carr and Elton, are now only partial guides to
contemporary debates. He lobbies for an embracing of the
postmodernist approaches of such thinkers as Richard Rorty and
Hayden White.
The question of what the nature of history is, is now a key issue for all students of history. It is now recognised by many that the past and history are different phenomena and that the way the past is actively historicised can be highly problematic and contested. Older metaphysical, ontological, epistemological, methodological and ethical assumptions can no longer be taken as read. In this timely collection, key pieces of writing by leading historians are reproduced and evaluated, with an explanation and critique of their character and assumptions, and how they reflect upon the nature of the history project. The authors respond to the view that the nature of history has become so disparate in assumption, approach and practice as to require an informed guide that is both self-reflexive, engaged, critical and innovative. This work seeks to aid a positive re-thinking of history today, and will be of use both to students and to their teachers.
History means many things to many people. But finding an answer to the question 'What is history?' is a task few feel equipped to answer. If you want to explore this tantalising subject, where do you start? What are the critical skills you need to begin to make sense of the past? The perfect introduction to this thought-provoking area, Jenkins' clear and concise prose guides readers through the controversies and debates that surround historical thinking at the present time, providing them with the means to make their own discoveries.
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