Silica

Silica PDF Author: Peter J. Heaney
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 1501509691
Category : Science
Languages : en
Pages : 624

Get Book Here

Book Description
Volume 29 of Reviews in Mineralogy provides an updated silica review which focuses on the most recent developments. This book describes the crystal structures and phase transitions of silica and its stuffed derivatives; bridges the relationship between the microstructural character of real silica minerals and the behavior of silica in the geological environment; covers Quantum mechanical considerations of the Si-O bond; shows how calculations based upon first-principles theory can explain and predict silica transitions at high temperatures and pressures; covers spectroscopic analyses of silica and how they reveal vibrational behaviors in response to variations in temperature, pressure, and composition and finally details the uses of silica for industrial purposes.

Silica

Silica PDF Author: Peter J. Heaney
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 1501509691
Category : Science
Languages : en
Pages : 624

Get Book Here

Book Description
Volume 29 of Reviews in Mineralogy provides an updated silica review which focuses on the most recent developments. This book describes the crystal structures and phase transitions of silica and its stuffed derivatives; bridges the relationship between the microstructural character of real silica minerals and the behavior of silica in the geological environment; covers Quantum mechanical considerations of the Si-O bond; shows how calculations based upon first-principles theory can explain and predict silica transitions at high temperatures and pressures; covers spectroscopic analyses of silica and how they reveal vibrational behaviors in response to variations in temperature, pressure, and composition and finally details the uses of silica for industrial purposes.

Particle Toxicology

Particle Toxicology PDF Author: Ken Donaldson
Publisher: CRC Press
ISBN: 1420003143
Category : Medical
Languages : en
Pages : 462

Get Book Here

Book Description
Exposure to particles in industry and mining and from accidental anthropogenic sources constitutes an ongoing threat. Most recently nanoparticles arising from advances in technology are exposing a wider population to pathogenic stimuli. The effects of inhaled particles are no longer confined to the lung as nanoparticles have the potential to transl

Crystalline Silica Primer

Crystalline Silica Primer PDF Author:
Publisher:
ISBN:
Category : Silica
Languages : en
Pages : 58

Get Book Here

Book Description


Crystalline Silica, Quartz

Crystalline Silica, Quartz PDF Author: F. Rice
Publisher:
ISBN:
Category : Medical
Languages : en
Pages : 62

Get Book Here

Book Description
A concise assessment of the adverse effects on human health caused by exposure to quartz the most common form of crystalline silica. Quartz is a frequently occurring solid component of most natural mineral dusts. Human exposure occurs most often during occupational activities involving movement of earth disturbance of silica-containing products such as masonry and concrete or use or manufacture of silica-containing products. As respirable quartz dust particles can be inhaled and deposited in the lung the report gives particular attention to evidence of an increased risk of lung cancer in occupationally exposed workers. Most studies in laboratory animals have concentrated on adverse effects associated with long-term inhalation of particles. Effects observed include cellular proliferation nodule formation suppressed immune function and alveolar proteinosis. While exposure clearly induces pulmonary tumours in one species other species show less or no malignant tumour response. The evaluation of risks to human health draws on a large number of epidemiological studies of workers exposed to respirable quartz dust. Occupational exposure has been linked to an increased incidence of silicosis ung cancer and pulmonary tuberculosis. Studies have also documented statistically significant increases in cases of bronchitis emphysema chronic obstructive pulmonary disease autoimmune-related diseases including scleroderma rheumatoid arthritis and systemic lupus erythematosus and renal disease. In reviewing these findings the report underscores several uncertainties inherent to the study of respiratory diseases in occupational populations that complicate the assessment of risks associated with exposure to quartz dust. The need for improved methods of exposure assessment and data analysis is stressed.

Fundamentals of Geoenvironmental Engineering

Fundamentals of Geoenvironmental Engineering PDF Author: Abdel-Mohsen O. Mohamed
Publisher: Butterworth-Heinemann
ISBN: 0128051450
Category : Technology & Engineering
Languages : en
Pages : 710

Get Book Here

Book Description
Fundamentals of Geoenvironmental Engineering: Understanding Soil, Water, and Pollutant Interaction and Transport examines soil-water-pollutant interaction, including physico-chemical processes that occur when soil is exposed to various contaminants. Soil characteristics relevant to remedial techniques are explored, providing foundations for the correct process selection. Built upon the authors' extensive experience in research and practice, the book updates and expands the content to include current processes and pollutants. The book discusses propagation of soil pollution and soil characteristics relevant to remedial techniques. Practicing geotechnical and environmental engineers can apply the theory and case studies in the book directly to current projects. The book first discusses the stages of economic development and their connections to the sustainability of the environment. Subsequent chapters cover waste and its management, soil systems, soil-water and soil-pollutant interactions, subsurface transport of pollutants, role of groundwater, nano-, micro- and biologic pollutants, soil characteristics that impact pollution diffusion, and potential remediation processes like mechanical, electric, magnetic, hydraulic and dielectric permittivity of soils. - Presents a clear understanding of the propagation of pollutants in soils - Identifies the physico-chemical processes in soils - Covers emerging pollutants (nano-, micro- and biologic contaminants) - Features in-depth coverage of hydraulic, electrical, magnetic and dielectric permittivity characteristics of soils and their impact on remedial technologies

Geology and Geochemistry of Epithermal Systems

Geology and Geochemistry of Epithermal Systems PDF Author: Byron R. Berger
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 334

Get Book Here

Book Description


Audio Electronics

Audio Electronics PDF Author: John Linsley Hood
Publisher: Newnes
ISBN: 1483140806
Category : Technology & Engineering
Languages : en
Pages : 364

Get Book Here

Book Description
Audio Electronics provides information pertinent to the fundamental aspects of audio electronics. This book discusses the parallel development in the various transducers and interface devices used to generate and reproduce electrical signals. Organized into nine chapters, this book begins with an overview of the basic method of digitally encoding an analog signal that entails repetitively sampling the input signal at sufficiently brief intervals. This text then examines the major attraction of the FM broadcasting system to allow the transmission of a high quality stereo signal without significant degradation of audio quality. Other chapters consider the conventional practice to interpose a versatile pre-amplifier unit between the power amplifier and the external signal sources. This book discusses as well the requirements for voltage gain stages in both audio amplifiers and integrated-circuit operational amplifiers. The final chapter deals with the significance of the power supply unit. This book is a valuable resource for professional recording and audio engineers.

Silica in Sediments

Silica in Sediments PDF Author: Hubert Andrew Ireland
Publisher:
ISBN:
Category : Rocks
Languages : en
Pages : 198

Get Book Here

Book Description


Occupational Exposure to Crystalline Silica

Occupational Exposure to Crystalline Silica PDF Author: National Institute for Occupational Safety and Health
Publisher:
ISBN:
Category : Hazardous substances
Languages : en
Pages : 136

Get Book Here

Book Description


The Hawk's Nest Incident

The Hawk's Nest Incident PDF Author: Martin Cherniack
Publisher:
ISBN: 9780300044850
Category : History
Languages : en
Pages : 224

Get Book Here

Book Description
Documents Union Carbide's construction in the 1930's of the Hawk's Nest Tunnel that allegedly caused the deaths of hundreds of workers through unsafe practices