Christopher R. Bowen's Books

Modern Piezoelectric Energy-Harvesting Materials

By: Christopher R. Bowen,Vitaly Yu. Topolov,Hyunsun Alicia Kim

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Modern Piezoelectric Energy-Harvesting Materials

By: Christopher R. Bowen,Vitaly Yu. Topolov,Hyunsun Alicia Kim

This book covers the topic of vibration energy harvesting using piezoelectric materials. Piezoelectric materials are analyzed in the context of their electromechanical coupling, heterogeneity, microgeometry and interrelations between electromechanical properties. Piezoelectric ceramics and composites based on ferroelectrics are advanced materials that are suitable for harvesting mechanical energy from vibrations using inertial energy harvesting which relies on the resistance of a mass to acceleration and kinematic energy harvesting which couples the energy harvester to the relative movement of different parts of a source. In addition to piezoelectric materials, research efforts to develop optimization methods for complex piezoelectric energy harvesters are also reviewed. The book is important for specialists in the field of modern advanced materials and will stimulate new effective piezotechnical applications.

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Page Count

165

Publisher

Springer

Published Date

ISBN 10

3319291432

ISBN 13

9783319291437

Piezo-Active Composites

Microgeometry–Sensitivity Relations

By: Vitaly Yu. Topolov,Christopher R. Bowen,Paolo Bisegna

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Piezo-Active Composites

Microgeometry–Sensitivity Relations

By: Vitaly Yu. Topolov,Christopher R. Bowen,Paolo Bisegna

This book is devoted to the systematic description of the role of microgeometry of modern piezo-active composites in the formation of their piezoelectric sensitivity. In five chapters, the authors analyse kinds of piezoelectric sensitivity for piezo-active composites with specific connectivity patterns and links between the microgeometric feature and piezoelectric response. The role of components and microgeometric factors is discussed in the context of the piezoelectric properties and their anisotropy in the composites. Interrelations between different types of the piezoelectric coefficients are highlighted. This book fills a gap in piezoelectric materials science and provides readers with data on the piezoelectric performance of novel composite materials that are suitable for sensor, transducer, hydroacoustic, energy-harvesting, and other applications.

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Page Count

189

Publisher

Springer

Published Date

ISBN 10

3319939289

ISBN 13

9783319939285

Innovative Piezo-active Composites And Their Structure - Property Relationships

By: James I Roscow,Vitaly Yu Topolov,Christopher R Bowen,Hamideh Khanbareh

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Innovative Piezo-active Composites And Their Structure - Property Relationships

By: James I Roscow,Vitaly Yu Topolov,Christopher R Bowen,Hamideh Khanbareh

This monograph provides researchers, engineers, postgraduates and lecturers working in the field of ferroelectric or piezoelectric and related materials with features of the structure-property relationships in modern piezo-active composites. These are piezoelectric composites which are active dielectric materials, which can be poled ferroelectric ceramics or domain-engineered single crystals poled along specific crystallographic directions. Current knowledge of the effective physical properties of these materials is lacking especially due to gaps of information in physical, chemical, microgeometric and technological factors. For composite and transducer design purposes, the expected properties of these piezo-active materials have been theorized through models by the authors and proven in experiments. Various well-known journals have published this research, among many others: Smart Materials and Structures; Journal of Physics D: Applied Physics; IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control; Acta Materialia.The book summarises and generalises a series of authors' works on the problem of the effective properties and related parameters of modern two- and three-component piezo-active composites wherein the microgeometric factor plays the dominating role. Specific examples of the performance of composites based on domain-engineered single crystals are also discussed. New trends are described in the research of modern piezo-active composites with the aim of filling the gaps in piezoelectric materials science. The primary goal of the book is to show advantages of different methods being applied to manufacture and study the functional composites that are suitable for piezoelectric energy harvesting, hydroacoustic, sensor, actuator, and other transducer applications.

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Page Count

255

Publisher

World Scientific

Published Date

ISBN 10

981126161X

ISBN 13

9789811261619

Piezo-Particulate Composites

Manufacturing, Properties, Applications

By: Hamideh Khanbareh,Vitaly Yu. Topolov,Christopher R. Bowen

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Piezo-Particulate Composites

Manufacturing, Properties, Applications

By: Hamideh Khanbareh,Vitaly Yu. Topolov,Christopher R. Bowen

This book provides an overview of the current state of the art in novel piezo-composites based on ferroelectrics. Covering aspects ranging from theoretical materials simulation and manufacturing and characterization methods, to the application and performance of these materials, it focuses on the optimization of the material parameters. Presenting the latest findings on modern composites and highlighting the applications of piezoelectric materials for sensors, transducers and hydro-acoustics, the book addresses an important gap in the physics of active dielectrics and materials science and describes new trends in the research on ferroelectric composites.

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Page Count

171

Publisher

Springer

Published Date

ISBN 10

3030192040

ISBN 13

9783030192044

The Challenge of Pluralism

Church and State in Six Democracies

By: J. Christopher Soper,Kevin R. den Dulk,Stephen V. Monsma

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The Challenge of Pluralism

Church and State in Six Democracies

By: J. Christopher Soper,Kevin R. den Dulk,Stephen V. Monsma

In a thoroughly revised and expanded edition that now includes France, this essential text offers a rigorous, systematic comparison of church-state relations in six Western nations: the United States, France, England, Germany, the Netherlands, and Australia. As successful and stable political democracies, these countries share a commitment to protecting the religious rights of their citizens. The book demonstrates, however, that each has taken substantially different approaches to resolving basic church-state questions. The authors examine both the historical roots of those differences and more recent conflicts over Islam and other religious minorities, explain how contemporary church-state issues are addressed, and provide a framework for assessing the success of each of the six states in protecting the religious rights of its citizens using a framework based on the ideal of governmental neutrality and evenhandedness toward people of all faiths and of none. Responding to the general confusion about the relationship between church and state in the West, this book offers a much-needed comparative analysis of a topic that is increasingly a source of political conflict. The authors argue that the US conception of church-state separation, with its emphasis on avoiding government establishment of religion, is unique among political democracies and discriminates against religious groups by denying religious organizations access to government services provided to other organizations. The authors persuasively conclude that the United States can learn a great deal from other Western nations in promoting religious neutrality and the free exercise of religion.

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Page Count

286

Publisher

Rowman & Littlefield

Published Date

ISBN 10

1442250445

ISBN 13

9781442250444

Electromechanical Properties in Composites Based on Ferroelectrics

By: Vitaly Yuryevich Topolov,Christopher Rhys Bowen

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Electromechanical Properties in Composites Based on Ferroelectrics

By: Vitaly Yuryevich Topolov,Christopher Rhys Bowen

“Electromechanical Properties in Composites Based on Ferroelectrics” investigates the problem of prediction and non-monotonicity of the effective electromechanical (piezoelectric, dielectric and elastic) properties in two- and three-component composites based on ferroelectric ceramics and relaxor-ferroelectric single crystals. The book analyzes the interrelations between the electromechanical constants of the components, and describes the different analytical schemes for averaging the properties of these materials with different connectivity and microgeometrical characteristics. The book highlights the advantages of different methods for predicting the electromechanical properties and choosing the optimum components, and demonstrates the non-trivial behavior of specific composite architectures and the parameters of value for engineering applications. The book is of benefit to all specialists looking to understand the detailed behavior and electromechanical response of advanced composite materials.

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Page Count

202

Publisher

Springer Science & Business Media

Published Date

ISBN 10

1848820003

ISBN 13

9781848820005

The Great Mistake

How We Wrecked Public Universities and How We Can Fix Them

By: Christopher Newfield

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The Great Mistake

How We Wrecked Public Universities and How We Can Fix Them

By: Christopher Newfield

A remarkable indictment of how misguided business policies have undermined the American higher education system. Winner of the CHOICE Outstanding Academic Title of the Choice ACRL Higher education in America, still thought to be the world leader, is in crisis. University students are falling behind their international peers in attainment, while suffering from unprecedented student debt. For over a decade, the realm of American higher education has been wracked with self-doubt and mutual recrimination, with no clear solutions on the horizon. How did this happen? In this stunning new book, Christopher Newfield offers readers an in-depth analysis of the “great mistake” that led to the cycle of decline and dissolution, a mistake that impacts every public college and university in America. What might occur, he asserts, is no less than locked-in economic inequality and the fall of the middle class. In The Great Mistake, Newfield asks how we can fix higher education, given the damage done by private-sector models. The current accepted wisdom—that to succeed, universities should be more like businesses—is dead wrong. Newfield combines firsthand experience with expert analysis to show that private funding and private-sector methods cannot replace public funding or improve efficiency, arguing that business-minded practices have increased costs and gravely damaged the university’s value to society. It is imperative that universities move beyond the destructive policies that have led them to destabilize their finances, raise tuition, overbuild facilities, create a national student debt crisis, and lower educational quality. Laying out an interconnected cycle of mistakes, from subsidizing the private sector to “the poor get poorer” funding policies, Newfield clearly demonstrates how decisions made in government, in the corporate world, and at colleges themselves contribute to the dismantling of once-great public higher education. A powerful, hopeful critique of the unnecessary death spiral of higher education, The Great Mistake is essential reading for those who wonder why students have been paying more to get less and for everyone who cares about the role the higher education system plays in improving the lives of average Americans.

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Page Count

445

Publisher

Johns Hopkins University Press

Published Date

ISBN 10

1421427036

ISBN 13

9781421427034

Book's by Christopher R. Bowen

Modern Piezoelectric Energy-Harvesting Materials

Modern Piezoelectric Energy-Harvesting Materials

Piezo-Active Composites

Piezo-Active Composites

Innovative Piezo-active Composites And Their Structure - Property Relationships

Innovative Piezo-active Composites And Their Structure - Property Relationships

Piezo-Particulate Composites

Piezo-Particulate Composites

The Challenge of Pluralism

The Challenge of Pluralism

Electromechanical Properties in Composites Based on Ferroelectrics

Electromechanical Properties in Composites Based on Ferroelectrics

The Great Mistake

The Great Mistake

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