J Charles – författare

Metal Resources and Energy was initially aimed at exploring the future availability of metals and the energy required to produce them. During the detailed planning of the book, the authors decided to extend the remit to consider fuel use in relation to resources and future availability. In order to explore this relationship a framework was established which provided an agenda of topics to examine. In the process of systematically working through this agenda a deeper understanding of resource issues and some new insights were obtained. This book develops a framework for assessing the future availability of metals by first reviewing the activities associated with the production of metals. These can be divided into four broad categories: exploration and establishment, mining, concentrating, and smelting and refining. It then examines factors such as energy economics, forecasting issues, resources and reserves estimation, and trends in technical efficiency. Subsequent chapters deal with the evaluation of fuel use in metals production; the secondary production of metals from scrap and other waste materials; non-technical issues that are potential sources of short-term crises; and other applications of energy data. This book is intended for final year students of engineering, geology, and economics, all of whom will find all the topics covered relevant to their studies. It attempts to convey the essentials of resource economics, metal production technology, energy analysis, and those aspects of geology and geochemistry which are pertinent to a study of resource issues. The full breadth of topics is covered at a depth which is comprehensible to students from other disciplines.

Fundamentals of Energy Dispersive X-ray Analysis provides an introduction to the fundamental principles of dispersive X-ray analysis. It presents descriptions, equations, and graphs to enable the users of these techniques to develop an intuitive and conceptual image of the physical processes involved in the generation and detection of X-rays. The book begins with a discussion of X-ray detection and measurement, which is accomplished by one of two types of X-ray spectrometer: energy dispersive or wavelength dispersive. The emphasis is on energy dispersive spectrometers, given their rather widespread use compared to the wavelength dispersive type. This is followed by separate chapters on techniques such as X-ray absorption; spectrum processing; and elimination of spectrum background produced by electron excitation. Subsequent chapters cover X-ray fluorescence; the use of regression models; hardware for X-ray fluorescence analysis; scattering, background, and trace element analysis; and methods for producing inner shell excitation of atoms in a sample of interest. The final chapter deals with applications of X-ray analysis.

Common Grace is often considered Abraham Kuyper's crowning work, an exploration of how God expresses grace even to the unsaved. Kuyper firmly believed that though many people in the world will remain unconverted, God's grace is still shown to the world as a whole. The second volume of Common Grace contains Kuyper's doctrinal exploration of the impact and implications of this aspect of Reformed theology. Never before published in English, this translation Common Grace is now available as part of a 12-volume series of Kuyper's most important writings on public theology. Created in partnership with the Kuyper Translation Society and the Acton Institute, the Abraham Kuyper Collected Works in Public Theology will deepen and enrich the church's understanding of public theology in today's world.

Common Grace is often considered Abraham Kuyper's crowning work, an exploration of how God expresses grace even to the unsaved. Kuyper firmly believed that though many people in the world will remain unconverted, God's grace is still shown to the world as a whole. In this third and final volume of Common Grace, Kuyper brings his argument to its logical completion by turning to practical implications. With detailed explorations on matters of church and state, family, upbringing, and society, Kuyper provides practical guidance for all who desire to flourish within the created order, a world in which God's grace is generously given to all.This translation of Common Grace, created in partnership with the Kuyper Translation Society and the Acton Institute, is part of a major series of new translations of Kuyper's most important writings. The Abraham Kuyper Collected Works in Public Theology marks a historic moment in Kuyper studies, aimed at deepening and enriching the church's development of public theology.