545 research outputs found

    Putting Community First: A Promising Approach to Federal Collaboration for Environmental Improvement: An Evaluation of the Community Action for a Renewed Environment (CARE) Demonstration Program

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    This report is an independent evaluation of the Environmental Protection Agency's (EPA) Community Action for a Renewed Environment (CARE) Demonstration Program, a community-driven process that uses the best available data to help communities set priorities and take action on their greatest environmental risks. CARE fosters local partnerships that seek participation from business, government, organizations, residents and EPA staff. It also supports a public, transparent planning and implementation process based on collaborative decision-making and shared action.Key FindingsThe National Academy Panel overseeing this effort was impressed by the dedication of the EPA staff to this unique initiative and commended the EPA for its efforts to partner with communities in achieving important long-term and sustainable environmental improvements at the local level. Recommended actions for the CARE Program include: (1) develop and implement a multifaceted information sharing approach; (2) coordinate and refine internal program management activities; and (3) develop a strategic plan and a business plan for CARE

    Analysis and evaluation of an integrated laminar flow control propulsion system

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    Reduction of drag has been a major goal of the aircraft industry as no other single quantity influences the operating costs of transport aircraft more than aerodynamic drag. It has been estimated that even modest reduction of frictional drag could reduce fuel costs by anywhere from 2 to 5 percent. Current research on boundary layer drag reduction deals with various approaches to reduce turbulent skin friction drag as a means of improving aircraft performance. One of the techniques belonging to this category is laminar flow control in which extensive regions of laminar flow are maintained over aircraft surfaces by delaying transition to turbulence through the ingestion of boundary layer air. While problems of laminar flow control have been studied in some detail, the prospect of improving the propulsion system of an aircraft by the use of ingested boundary layer air has received very little attention. An initial study for the purpose of reducing propulsion system requirements by utilizing the kinetic energy of boundary layer air was performed in the mid-1970's at LeRC. This study which was based on ingesting the boundary layer air at a single location, did not yield any significant overall propulsion benefits; therefore, the concept was not pursued further. However, since then it has been proposed that if the boundary layer air were ingested at various locations on the aircraft surface instead of just at one site, an improvement in the propulsion system might be realized. The present report provides a review of laminar flow control by suction and focuses on the problems of reducing skin friction drag by maintaining extensive regions of laminar flow over the aircraft surfaces. In addition, it includes an evaluation of an aircraft propulsion system that is augmented by ingested boundary layer air

    William J. Harbison

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    Those close to him knew Bill Harbison for much more than the great legal scholar that he was. For almost twenty years I had the good fortune to practice law with him and was privileged to be his friend for over forty years. He was, as everyone knows, an outstanding lawyer and judge, but perhaps many do not know the non-legal side of Bill Harbison. In no particular order, Bill was a churchman, a sports enthusiast, a gardener, a historian, a fisherman, a lover of literature, and above all a devoted family man. For many years he was active at Belmont Methodist Church in Nashville, where he taught a Sunday School class. Although I do not believe he was ever a participant, he was an avid follower of major sports-in particular the fortunes of Vanderbilt\u27s football and basketball teams. He loved to fish and in many springs he would go to Kentucky Lake and fish for crappie. He kept a boat on Old Hickory Lake and enjoyed hours of fishing there with his family and friends. Before he moved to the steep hillside in the Lealand section, he was a vegetable gardener, and annually raised a beautiful vegetable garden, strawberries being one of his main crops. He served as president of the Tennessee Historical Society and was well-versed in Tennessee history, as well as world history. For years he was a member of Nashville\u27s Shakespeare Club-a group of men who met monthly to read and discuss one of the bard\u27s plays. He belonged to the Old Oak Club, another group that meets monthly to hear a paper read by one of the club\u27s members. His papers were always interesting, well-written, and well-presented. Bill Harbison spent many hours with his family, consisting of his wife, Mary Lib, his two children, Bill and Mary Alice, and his grandchildren. They frequently enjoyed family outings together. In short, Bill Harbison was, indeed, much more than an out- standing lawyer and jurist. He was interesting, modest almost to a fault, thoughtful, considerate, and entertaining. Many of his legal accomplishments are in the law books, but perhaps some of the qualities related here are those which many of us will remember longer. He was a man for all seasons, a man who truly stopped and smelled the roses. It is hard to believe he is gone; we will all miss him tremendously

    The Role of the Physician in End-of-Life Care: What More Can We Do?

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    FREE MEN AND SOLDIERS

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    A statistical analysis of the length of labor

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    LAND FORCES IN MODERN STRATEGY

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    FROM YESTERDAY\u27S FEARS TO TODAY\u27S REALITIES

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    The effect of thyroxine on myocardial high energy phosphates

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