Electrochemical Phenomena in the Cathode Impedance Spectrum of PEM Fuel Cells: Fundamentals, Modelling, and Applications establishes how the electrochemical and diffusion mechanisms of a polymer electrolyte membrane fuel cell (PEMFC) are related to electrochemical impedance spectroscopy (EIS) measurements using physics-based impedance models derived from fundamental electrode and diffusion theories. The contribution of the different phenomena occurring at the different layers comprising the cathode on the impedance response of the PEMFC is revealed through EIS-modelling analysis. The relation between EIS measurements and polarisation curves representing the performance of PEMFCs is established. Insight is gained into how the EIS response of the PEMFC changes at different operating conditions e.g. relative humidity, load demand, gas reactant stoichiometry and temperature using physics-based impedance models. The application of impedance models with EIS measurements carried out in the individual cells comprising a PEMFC stack is demonstrated, while recent modelling approaches and other impedance models reported in the literature to represent the EIS response of the PEMFC are also considered and discussed.

Christianity and Culture in the City: A Postcolonial Approach offers an introduction to the broad diversity of contemporary Christianities in a rich, complex, changing, and challenging city context. Cruz focuses upon a variety of changing communities with dynamic and striking cultural experiences, and the volume provides both scholarly and practical insights as to how Christianities in the city relate to and transform city institutions and communities that are undergoing dramatic shifts and invite opportunities for intentional study. This book offers a provocative interdisciplinary examination to shed light upon the ways in which diverse city communities appropriate Christianity to better engage their economic, cultural, political, and religious environment. A post-colonial theoretical framework will help inform how Christianity serves to empower and reinvent fragmented, oppressed, and struggling city populations. The reader is offered various conceptual, theoretical, and pragmatic insights and knowledge for better interpreting, affirming, and engaging diverse Christianities in the city in a postcolonial era.

Christianity and Culture in the City: A Postcolonial Approach offers an introduction to the broad diversity of contemporary Christianities in a rich, complex, changing, and challenging city context. Cruz focuses upon a variety of changing communities with dynamic and striking cultural experiences, and the volume provides both scholarly and practical insights as to how Christianities in the city relate to and transform city institutions and communities that are undergoing dramatic shifts and invite opportunities for intentional study. This book offers a provocative interdisciplinary examination to shed light upon the ways in which diverse city communities appropriate Christianity to better engage their economic, cultural, political, and religious environment. A post-colonial theoretical framework will help inform how Christianity serves to empower and reinvent fragmented, oppressed, and struggling city populations. The reader is offered various conceptual, theoretical, and pragmatic insights and knowledge for better interpreting, affirming, and engaging diverse Christianities in the city in a postcolonial era.

In this book, established scholars from different religions, regions, and disciplines continue the dialogue that Veli-Matti Karkkainen began in his A Constructive Christian Theology for the Pluralistic World series and respond to his work in light of their diverse expertise and context. Each of the three parts focuses on a key area of Karkkainen's engaging work: 1) highlighting how his method shaped each volume, 2) highlighting his commitment to global perspectives, and 3) highlighting his interreligious and interdisciplinary dialogue partners. Together, these essays seek to deepen and extend the impact of Karkkainen's work, taking it seriously as a substantive model for contemporary systematic theology in listening and engaging with this world.