1,878 research outputs found

    Seismic Design for Buildings

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    This updated manual with revised seismic design provisions governs the design and construction of Army, Navy, and Air Force facilities and supersedes the April 1973 issue. Basic criteria are stated herein with augmentations and clarifications of the criteria. Also, commentary and design examples are included to provide comprehensive applications and guidelines for the seismic-resistant design of facilities. The organization of the manual has been revised to present the topics in a more orderly manner. The dynamic analysis approach for seismic design is not covered but its use is not precluded in this manual. The basic criteria cited are the Recommended Lateral Force Requirements and Commentary as published by the Structural Engineers Association of California (SEAOC). The design concepts and applications for the design of: (1) supports for electrical, mechanical end architectural elements and (2) structures other than buildings, have been revised. The applications of essential, high risk and other occupancy type structures are included with the use of the importance factors vice high-loss potential and low-loss potential facilities in the 1973 issue. The general direction for the revision of the manual was by a Department of Defense Tri-Services Seismic Design Committee, i.e., representatives of the Office of the Chief of Engineers, Headquarters, US Army; Naval Facilities Engineering Command, Headquarters, US Navy; and Directorate of Engineering and Services, Headquarters, US Air Force. Detailed development of the manual was under the direction of the Office of the Chief of Engineers, Washington, DC and the US Army Division Engineer, South Pacific, San Francisco, California. Coordination was maintained with the Naval Facilities Engineering Command at Headquarters, Washington, DC, and Western Division, San Bruno, California; and US Air Force Civil Engineering Offices at Headquarters, Washington, DC, and Western Regional Office, San Francisco, California

    The impact on human health of car-related air pollution in the UK, 1995-2005

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    We have analysed the impact on human health of emissions produced by the UK car fleet in the years 1995 and 2005. Calculations were based on reported measurements of pollutant concentration, literature values of exposure response coefficients and data for mortality and morbidity. A share was attributed to the car fleet based on emissions data. Although the total distance driven in the UK increased by 16% over this period to 460 billion km, there was a significant fall in engine emissions as increasingly stringent regulations (EURO standards) were introduced. As a result there was a decrease of some 25% in the number of deaths attributable to car-related air pollution – down to 5589 in 2005. The estimated number of years of life lost at 65 000 (England and Wales) in 2005, was about half that caused by road accidents involving cars in the same year. We report further calculations which show the effect of car-related pollution on hospital admissions. Our method is straightforward, providing acceptable estimates for health impacts on the predominantly urban population of the UK. There remains a need for more work, particularly cohort studies of morbidity, to establish the long-term effects of air pollution

    The Harmon Memorial Lectures in Military History 1959-1987

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    Concert: The United States Air Force Band

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    U.S. Air Force Art Collection, Fine Arts Series 9

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    This series of posters includes: Fastest blackbird / by Chris Kenyon -- USAF flight of birds / by Michel Allaire -- A Salute to Projects / by Robert Schaefer -- The Classic Phantom Pyramid fly-by (F-4E\u27s) / by Walter Hortens -- MAC / by Eric Joyner --The Lesson / by Keith Ferris -- Montage: 40 years of USAF / by Dick Kramer --B-52 / by Dick Kramer -- Link in the SDI chain / by Phillip Weisgerber -- Eagle and F-15 / by Richard Allison -- Colonel Tip Clark over Hahn / by John Clark --B-1 at Dyess / by Paul Bond

    Silver Wings

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    Featured here is the poster Silver wings. This poster belongs to a series titled U.S. Air Force Art Collection, Fine Arts Series 7. Not present are others in this series, including Mascot by Vernon Baim -- Cows are to be avoided by Frank Germain -- Eye above the storm by Allen S. Harmon -- Waiting for orders by Alfred Johnson -- Discovery at Vandenberg AFB by Stan Jones -- Thunderbird by Henry Lozano, Jr. -- The Falcon\u27s view by Donald Klappauf -- Moonlight sonata: Spanish tanker taskforce--January 85 by Craig Kodera -- Visual contact by William S. Phillips -- Canyon Falcon by William S. Phillips -- May 2, 1923 by James Sanford.https://digitalcommons.cwu.edu/government_posters/1131/thumbnail.jp

    U.S. Air Force Art Collection, Fine Arts Series 2

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    This series of posters includes: a Corsair at Hanscom Field Open House in May 1973 (by George Guzzi), General Billy Mitchell (by Peter Hurd), an air evacuation mission in September 1966 (by Walter Hortens), a landing at Thule (by Charles J. Carroll, Jr.), maintenance on Ki Sawyer AFB (by John W. Clark), a missile launching involving Vandenberg AFB (by Bart Doe), an atlas F near Omaha, NE (by Gerald McConnell), On Final (by William S. Phillips), pilot training in March 1970 (by Merv Corning), the Doolittle raid on Tokyo in 1942 (by Herbert Mott, Jr.), Weasels with a Bite (by Harley F. Copic), and Westar I, Communication Satellite, in April 1974 (by Malcolm L. Murley)
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