Evaluation of Soil and Rock Properties

Evaluation of Soil and Rock Properties

Author: P. J. Sabatini

Publisher:

Published: 2004-10-01

Total Pages: 392

ISBN-13: 9781410217615

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This document presents state-of-the-practice information on the evaluation of soil and rock properties for geotechnical design applications. This document addresses the entire range of materials potentially encountered in highway engineering practice, from soft clay to intact rock and variations of materials that fall between these two extremes. Information is presented on parameters measured, evaluation of data quality, and interpretation of properties for conventional soil and rock laboratory testing, as well as in situ devices such as field vane testing, cone penetration testing, dilatometer, pressuremeter, and borehole jack. This document provides the design engineer with information that can be used to develop a rationale for accepting or rejecting data and for resolving inconsistencies between data provided by different laboratories and field tests. This document also includes information on: (1) the use of Geographical Information Systems (GIS) and Personal Data Assistance devices for the collection and interpretation of subsurface information; (2) quantitative measures for evaluating disturbance of laboratory soil samples; and (3) the use of measurements from geophysical testing techniques to obtain information on the modulus of soil. Also included are chapters on evaluating properties of special soil materials (e.g., loess, cemented sands, peats and organic soils, etc.) and the use of statistical information in evaluating anomalous data and obtaining design values for soil and rock properties. An appendix of three detailed soil and rock property selection examples is provided which illustrate the application of the methods described in the document.


Introduction to Industrial Polypropylene

Introduction to Industrial Polypropylene

Author: Dennis B. Malpass

Publisher: John Wiley & Sons

Published: 2012-07-02

Total Pages: 290

ISBN-13: 111846320X

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This introductory text is an important resource for new engineers, chemists, students, and chemical industry personnel to understand the technical aspects of polypropylene which is the 2nd largest synthetics polymer in manufactured output. The book considers the following topics: What are the principal types of polypropylene and how do they differ? What catalysts are used to produce polypropylene and how do they function? What is the role of cocatalysts and how have they evolved over the years? How are industrial polypropylene catalysts tested and the resultant polymer evaluated? What processes are used in the manufacture of polypropylene? What are the biopolymer alternatives to polypropylene? What companies are the major industrial manufacturers of polypropylene? What is the environmental fate of polypropylene?


Practical Plastic Surgery for Nonsurgeons

Practical Plastic Surgery for Nonsurgeons

Author: Nadine Semer

Publisher: Authors Choice Press

Published: 2007-07

Total Pages: 0

ISBN-13: 9780595461899

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This manual is a quick and handy reference of practical plastic surgical tips and techniques for medical professionals without advanced surgical training. Practitioners in a variety of settings will find useful information on effective treatment for commonly encountered injuries and problems to optimize patient outcomes.


The Safety Relief Valve Handbook

The Safety Relief Valve Handbook

Author: Marc Hellemans

Publisher: Elsevier

Published: 2009-08-31

Total Pages: 327

ISBN-13: 0080961185

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The Safety Valve Handbook is a professional reference for design, process, instrumentation, plant and maintenance engineers who work with fluid flow and transportation systems in the process industries, which covers the chemical, oil and gas, water, paper and pulp, food and bio products and energy sectors. It meets the need of engineers who have responsibilities for specifying, installing, inspecting or maintaining safety valves and flow control systems. It will also be an important reference for process safety and loss prevention engineers, environmental engineers, and plant and process designers who need to understand the operation of safety valves in a wider equipment or plant design context. - No other publication is dedicated to safety valves or to the extensive codes and standards that govern their installation and use. A single source means users save time in searching for specific information about safety valves - The Safety Valve Handbook contains all of the vital technical and standards information relating to safety valves used in the process industry for positive pressure applications. - Explains technical issues of safety valve operation in detail, including identification of benefits and pitfalls of current valve technologies - Enables informed and creative decision making in the selection and use of safety valves - The Handbook is unique in addressing both US and European codes:- covers all devices subject to the ASME VIII and European PED (pressure equipment directive) codes;- covers the safety valve recommendations of the API (American Petroleum Institute);- covers the safety valve recommendations of the European Normalisation Committees;- covers the latest NACE and ATEX codes;- enables readers to interpret and understand codes in practice - Extensive and detailed illustrations and graphics provide clear guidance and explanation of technical material, in order to help users of a wide range of experience and background (as those in this field tend to have) to understand these devices and their applications - Covers calculating valves for two-phase flow according to the new Omega 9 method and highlights the safety difference between this and the traditional method - Covers selection and new testing method for cryogenic applications (LNG) for which there are currently no codes available and which is a booming industry worldwide - Provides full explanation of the principles of different valve types available on the market, providing a selection guide for safety of the process and economic cost - Extensive glossary and terminology to aid readers' ability to understand documentation, literature, maintenance and operating manuals - Accompanying website provides an online valve selection and codes guide.


Subfloor Pits and the Archaeology of Slavery in Colonial Virginia

Subfloor Pits and the Archaeology of Slavery in Colonial Virginia

Author: Patricia Samford

Publisher: University of Alabama Press

Published: 2007-12-16

Total Pages: 248

ISBN-13: 0817354549

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This book discusses the daily life and culture of enslaved Africans and their descendants. Enslaved Africans and their descendants comprised a significant portion of colonial Virginia populations, with most living on rural slave quarters adjacent to the agricultural fields in which they labored. Archaeological excavations into these home sites have provided unique windows into the daily lifeways and culture of these early inhabitants. subfloor pits be-neath the houses. The most common explanations of the functions of these pits are as storage places for personal belongings or root vegetables, and some contextual and ethnohistoric data suggest they may have served as West African-style shrines. Through analysis of 103 subfloor pits dating from the 17th through mid-19th centuries, Samford reveals how data on shape, location, surface area, and depth, as well as contextual analysis of artifact assemblages, can show how subfloor pits functioned for the enslaved. Archaeology reveals the material circumstances of slaves' lives, which in turn opens the door to illuminating other aspects of life: spirituality, symbolic meanings assigned to material goods, social life, individual and group agency, and acts of resistance and accommodation. about how West African, possibly Igbo, cultural traditions were maintained and transformed in the Virginia Chesapeake.


Occupational Noise Exposure

Occupational Noise Exposure

Author: Department of Health and Human Services

Publisher: Createspace Independent Publishing Platform

Published: 2014-02-19

Total Pages: 122

ISBN-13: 9781496001597

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In the Occupational Safety and Health Act of 1970, Congress declared that its purpose was to assure, so far as possible, safe and healthful working conditions for every working man and woman and to preserve our human resources. In this Act, the National Institute for Occupational Safety and Health (NIOSH) is charged with recommending occupational safety and health standards and describing exposure concentrations that are safe for various periods of employment-including but not limited to concentrations at which no worker will suffer diminished health, functional capacity, or life expectancy as a result of his or her work experience. By means of criteria documents, NIOSH communicates these recommended standards to regulatory agencies (including the Occupational Safety and Health Administration [OSHA]) and to others in the occupational safety and health community. Criteria documents provide the scientific basis for new occupational safety and health standards. These documents generally contain a critical review of the scientific and technical information available on the prevalence of hazards, the existence of safety and health risks, and the adequacy of control methods. In addition to transmitting these documents to the Department of Labor, NIOSH also distributes them to health professionals in academic institutions, industry, organized labor, public interest groups, and other government agencies. In 1972, NIOSH published Criteria for a Recommended Standard: Occupational Exposure to Noise, which provided the basis for a recommended standard to reduce the risk of developing permanent hearing loss as a result of occupational noise exposure [NIOSH 1972]. NIOSH has now evaluated the latest scientific information and has revised some of its previous recommendations. The 1998 recommendations go beyond attempting to conserve hearing by focusing on preventing occupational noise-induced hearing loss (NIHL). This criteria document reevaluates and reaffirms the recommended exposure limit (REL) for occupational noise exposure established by the National Institute for Occupational Safety and Health (NIOSH) in 1972. The REL is 85 decibels, A-weighted, as an 8-hr time-weighted average (85 dBA as an 8-hr TWA). Exposures at or above this level are hazardous. By incorporating the 4000-Hz audiometric frequency into the definition of hearing impairment in the risk assessment, NIOSH has found an 8% excess risk of developing occupational noise-induced hearing loss (NIHL) during a 40-year lifetime exposure at the 85-dBA REL. NIOSH has also found that scientific evidence supports the use of a 3-dB exchange rate for the calculation of TWA exposures to noise. The recommendations in this document go beyond attempts to conserve hearing by focusing on prevention of occupational NIHL. For workers whose noise exposures equal or exceed 85 dBA, NIOSH recommends a hearing loss prevention program (HLPP) that includes exposure assessment, engineering and administrative controls, proper use of hearing protectors, audiometric evaluation, education and motivation, recordkeeping, and program audits and evaluations. Audiometric evaluation is an important component of an HLPP. To provide early identification of workers with increasing hearing loss, NIOSH has revised the criterion for significant threshold shift to an increase of 15 dB in the hearing threshold level (HTL) at 500, 1000, 2000, 3000, 4000, or 6000 Hz in either ear, as determined by two consecutive tests. To permit timely intervention and prevent further hearing losses in workers whose HTLs have increased because of occupational noise exposure, NIOSH no longer recommends age correction on individual audiograms.


Building Your Own Home For Dummies

Building Your Own Home For Dummies

Author: Kevin Daum

Publisher: John Wiley & Sons

Published: 2011-03-04

Total Pages: 386

ISBN-13: 1118054067

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Keep construction on track with helpful checklists Turn your dream of a custom home into reality! Thinking about building your own home? This easy-to-follow guide shows you how to plan and build a beautiful home on any budget. From acquiring land to finding the best architect to overseeing the construction, you get lots of savvy tips on managing your new investment wisely -- and staying sane during the process! Discover how to: * Find the best homesite * Navigate the plan approval process * Obtain financing * Hire the right contractor * Cut design and construction costs * Avoid common mistakes


Essays on Art and Language

Essays on Art and Language

Author: Charles Harrison

Publisher: MIT Press

Published: 2003-09-12

Total Pages: 350

ISBN-13: 9780262582414

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Critical and theoretical essays by a long-time participant in the Art & Language movement. These essays by art historian and critic Charles Harrison are based on the premise that making art and talking about art are related enterprises. They are written from the point of view of Art & Language, the artistic movement based in England—and briefly in the United States—with which Harrison has been associated for thirty years. Harrison uses the work of Art & Language as a central case study to discuss developments in art from the 1950s through the 1980s. According to Harrison, the strongest motivation for writing about art is that it brings us closer to that which is other than ourselves. In seeing how a work is done, we learn about its achieved identity: we see, for example, that a drip on a Pollock is integral to its technical character, whereas a drip on a Mondrian would not be. Throughout the book, Harrison uses specific examples to address a range of questions about the history, theory, and making of modern art—questions about the conditions of its making and the nature of its public, about the problems and priorities of criticism, and about the relations between interpretation and judgment.