a c fieldner (35 risultati)

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

Stapled Wraps. Condizione: Very Good. B&W Photographs & Drawings (illustratore). Former Bureau of Mines library book with some of the usual stamps, stickers, and other markings. Text block clean and tight with light wear to binding. 51p. Size: 4to - over 9¾" - 12" tall. Ex-Library, Technical Bulletin.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

Pamphlet. 53p., stapled wraps, 6x9 inches, ex-library with ownership stamp and penned accession number on front wrap. Department of the Interior Technical Paper 698.

Pamphlet. 145p., stapled wraps, 6x9 inches, bottom corner of front wrap and first page torn off with no loss of text, ex-library with ownership stamp and penned accession number on front wrap. Department of the Interior Technical Paper 576.

HRD. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Condizione: New. Print on Demand. This book argues that soft coal should be processed and used for domestic heating, both to combat pervasive air pollution and to increase the efficiency of metallurgical industries by repurposing resulting coke for such industries. The author presents a multifaceted view of the benefits of coke as a smokeless and efficient fuel, including its role in combating city air pollutionâ"a major health concern of urban areas in the early 20th century. This book is a seminal text in the history of urban planning and public health in industrial societies. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.

Paperback. Condizione: New. Print on Demand. This book provides a straightforward method for accurately determining the combustible content of shale, clay, and carbonate rocks. The presence of combined water and the formation of insoluble materials during analysis can lead to inaccurate results. As a result, the author has devoted considerable space to explaining how to identify and avoid any potential problems during analysis. Despite its technical nature, this book is well-suited to a general audience. The author takes care to explain complex concepts in clear and accessible language, while also providing extensive data that illustrates the need for a precise method for identifying combustible content in silicate and carbonate rocks. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.

Paperback. Condizione: New. Print on Demand. This book compares and contrasts various modifications of the Kjeldahl method for the determination of nitrogen in coals with the Dumas gas-volumetric method, regarded as reliable and applicable to most classes of organic compounds. The author wanted to ascertain which modifications of the Kjeldahl method are best adapted to the determination of nitrogen in coal to check the results with the Dumas gas-volumetric method. The author presents the results of a comprehensive series of tests performed to determine which modification of the Kjeldahl method is the most effective in accurately measuring the nitrogen content in coal. The book concludes by discussing the importance of accurate nitrogen determination in coal analysis and the implications for industries that rely on coal as a fuel source. This book will be of great value to researchers, scientists, and professionals in the fields of coal analysis, fuel chemistry, and environmental science. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.

Paperback. Condizione: New. Print on Demand. This book delves into the permeability of oxygen breathing apparatus to gases and vapors. Prior experiments on gas permeation through rubber are examined, along with tests conducted by the author on various fabrics to determine their suitability for use in breathing bags. The author discovered that fabrics commonly used in breathing apparatus were permeable to gasoline and benzene vapors, posing safety concerns. The book explores alternative materials, such as fabrics containing glue-glycerine mixtures or pyroxylin varnish, which exhibited promising results in resisting permeation and ensuring the safety of oxygen breathing apparatus users. This research contributes to the advancement of safety measures in the use of oxygen breathing equipment, particularly in environments with high concentrations of organic vapors. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.

Paperback. Condizione: New. Print on Demand. This book analyzes the transformation of feudal lords into modern-day landowners, emphasizing the influence of agricultural economics and rural society during the process. The author approaches this topic through an investigation of the social, political, and economic developments that characterized the period, with specific examples drawn from Western Europe. Ultimately, this book provides valuable insights into the evolution of feudalism and its enduring impact on modern society. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.

Paperback. Condizione: New. Print on Demand. This book provides a method for determining the incombustible matter in coal and rock-dust mixtures in mines. Using a volumeter, the author explains the theory of the apparatus and presents results of its use for synthetic and miscellaneous samples. The data provided demonstrates that the volumeter method is capable of results accurate within 1%, which is greatly advantageous in monitoring the addition of rock dust to coal mines as a protective measure for preventing dust explosions. The volumeter has become widely adopted and continues to have relevance as a monitoring tool to this day. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.

Paperback. Condizione: New. Print on Demand. This fascinating book discusses the development and testing of gas masks and respirators designed to protect train personnel from the potentially lethal effects of locomotive smoke inhalation in railroad tunnels. During the early 1900s, engineers and firemen suffered in enclosed, smoky, dangerous environments, even occasionally succumbing to toxic gases. The author provides historical context for the problem and delves into the chemistry of combustion and the physiological effects of smoke inhalation, including carbon monoxide poisoning. A review of various mask designs and the results of extensive testing follow, with the author concluding that a small, pocket-sized canister containing charcoal and soda lime offered the best protection against the irritant gases and smoke, as well as the dangerous carbon monoxide. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.

Paperback. Condizione: New. Print on Demand. This book explores the development of sugar-tube methods for quantifying siliceous dust in air, a significant factor in the health of miners. The introduction of new methods based on electrical precipitation, optical measurement, and weight determination enabled critical evaluation of the efficacy of sugar filters. The author presents the results of comprehensive studies on factors influencing filter efficiency, including tube dimensions, sugar depth, particle size, and moisture content. The book also includes a critical analysis of results obtained using both low-resistance tubes with granulated sugar and high-resistance tubes with pulverized sugar. The insights gained from these experiments provide valuable guidance for optimizing sugar-tube design and improving the accuracy of dust measurements in various industrial settings, particularly in mines where dust inhalation poses significant health risks. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.

Paperback. Condizione: New. Print on Demand. This 1933 book is an excellent guide to the analysis of coal and coke for beginners and experts alike. It was revised and enlarged from its first publication in 1912 to include more detailed information and methods that were used in the fuel investigations of the U.S. Government. The analytical procedure descriptions are comprehensive, opening with a section describing sample preparation including drying. The author then offers descriptions of qualitative and quantitative testing for moisture, volatile matter, fixed carbon, and ash content. Detailed instructions are given for the determination of carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur â" and the book concludes with methods of calculating and reporting analyses. Understanding coal and coke is paramount to energy production. Their analyses are essential to understanding heating value and other parameters that affect energy conversion efficiency and pollution control strategies. This book is a must-have for anyone interested in solid fuel analysis, as the methods are well-described and accurate. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.

Paperback. Condizione: New. Print on Demand. This book compiles and presents analyses for a wide array of coal samples collected by the U.S. Bureau of Mines and the U.S. Geological Survey between 1916 and 1919, many of which have been used for testing the heating and industrial value of coal from different locations for government projects. The book contextualizes the development of coal analysis methodologies within the history of fuels research and technology. Via charts and tables, the author presents proximate and ultimate analyses for hundreds of samples, which the author collected from a variety of sources including mines, outcroppings, and prospect holes. These analyses provide insights into the chemical composition, heating value, and other properties of these diverse coal samples. This exhaustive collection of data is a valuable resource for geologists, mining engineers, fuel chemists, and others, serving as a foundation for planning, evaluating, and implementing a variety of coal-based projects. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.

Hardcover. Condizione: Good. 1st Edition. Deaccessioned from the Harvard College Library (which received the bulletins from the U.S. government), which overbound the three bulletins in light brown buckram with black morocco leather gilt-stamped spine labels, which are a bit chipped; binding has soil and wear; corners bumped; tight, text clean. 204 p.; 64 p.; xiv, 1200 p; with in-text illustrations plus plates. Thick, heavy volume. Size: 9 7/16 x 6 inches. [br 40].