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Advances in Productive, Safe, and Responsible Coal Mining covers the latest advancements in coal mining technology and practices. It gives a comprehensive introduction to the latest research and technology developments, addressing problems and issues currently being faced, and is a valuable resource of complied technical information on the latest coal mining safety and health research. As coal's staying power has been at the forefront of the world's energy mix for more than a century, this book explores critical issues affecting coal mining, including how to maintain low-cost productivity, address health and safety hazards, and how to be responsible environmental stewards. This book takes a holistic approach in addressing each issue from the perspective of its impact on the coal mining operation and industry as a whole. - Explains how to effectively produce coal within existing environmental constraints - Encapsulates the latest health and safety research and technological advances in the coal mining industry - Written by authors who have developed the latest technology for coal mines
Coal will continue to provide a major portion of energy requirements in the United States for at least the next several decades. It is imperative that accurate information describing the amount, location, and quality of the coal resources and reserves be available to fulfill energy needs. It is also important that the United States extract its coal resources efficiently, safely, and in an environmentally responsible manner. A renewed focus on federal support for coal-related research, coordinated across agencies and with the active participation of the states and industrial sector, is a critical element for each of these requirements. Coal focuses on the research and development needs and priorities in the areas of coal resource and reserve assessments, coal mining and processing, transportation of coal and coal products, and coal utilization.
Electricity has penetrated deeply into virtually every aspect of American life, be it in industry, the home, or in the rapidly growing commercial and service sectors. This book documents and analyzes the existence of a strong, and growing, synergy between technological progress and the use of electrified production techniques in the United States during the twentieth century. The authors use two types of information in their work: case studies of the ways in which technological progress in particular industries and economic sectors has depended upon the adoption of electrified methods of production and aggregative long-term national economic statistics that measure the changing relationship over time between increases in the use of electricity and other factor inputs and the growth in industrial productivity. Eleven of the book's thirteen chapters cover the case studies, while the remaining two chapters and the statistical appendix contain the broad quantitative findings and supporting data. In their analysis, the authors address three inter-related questions from a long-term evolutionary perspective: Why has electricity's share of total energy risen so sharply over the years? How has this rise been related to productivity growth? and Why has the rise in electricity led to long-term improvements in the efficiency of overall energy use despite the thermal energy losses sustained when fuels are converted into electricity? The answer to these questions, they contend, is the technological progress represented by electrified production technologies, and in the new ways of organizing production that are now possible. The different ways in which electrical energy has been put to work, and with what results, are examined in the various case studies presented, and further documented in the aggregative statistical analysis. This study reveals the important role that the electrification of production operations has played in supporting productivity growth in manufacturing and other economic sectors in the past, and the important part that it can continue to play in the future. This book will appeal to a broad spectrum of readers; those interested in productivity issues, energy policy, electricity in general, historians of technology, economic historians, and those interested in current technological issues. It will be a necessary acquisition for college and university libraries, as well as those individuals interested in energy, technology, economic growth, history, and the interfaces among them.
The growth rate of national income has fluctuated widely in the United States since 1929. In this volume, Edward F. Denison uses the growth accounting methodology he pioneered and refined in earlier studies to track changes in the trend of output and its determinants. At every step he systematically distinguishes changes in the economy’s ability to produce—as measured by his series on potential national income—from changes in the ratio of actual output to potential output. Using data for earlier years as a backdrop, Denison focuses on the dramatic decline in the growth of potential national income that started in 1974 and was further accentuated beginning in 1980, and on the pronounced decline from business cycle to business cycle in the average ratio of actual to potential output, a slide under way since 1969. The decline in growth rates has been especially pronounced in national income per person employed and other productivity measures as growth of total output has slowed despite a sharp acceleration in growth of employment and total hours at work. Denison organizes his discussion around eight table that divide 1929-82 into three long periods (the last, 1973-82) and seven shorter periods (the most recent, 1973-79 and 1979-82). These tables provide estimates of the sources of growth for eight output measures in each period. Denison stresses that the 1973-82 period of slow growth in unfinished. He observes no improvement in the productivity trend, only a weak cyclical recovery from a 1982 low. Sources-of-growth tables isolate the contributions made to growth between “input” and “output per unit of input.” Even so, it is not possible to quantify separately the contribution of all determinants, and Denison evaluates qualitatively the effects of other developments on the productivity slowdown.