2,033 research outputs found

    Investigation of Separated Flows in Supersonic and Subsonic Streams with Emphasis on the Effect of Transition

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    Report presents the results of experimental and theoretical research conducted on flow separation associated with steps, bases, compression corners, curved surfaces, shock-wave boundary-layer reflections, and configurations producing leading-edge separation. Results were obtained from pressure-distribution measurements, shadowgraph observations, high-speed motion pictures, and oil-film studies. The maximum scope of measurement encompassed Mach numbers between 0.4 and 3.6, and length Reynolds numbers between 4,000 and 5,000,000

    Auditing Symposium V: Proceedings of the 1980 Touche Ross/University of Kansas Symposium on Auditing Problems

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    Historical perspective of government auditing -- With special reference to the U.S general accounting office / Leo Herbert; Discussant\u27s response to an historical perspective of government auditing with special reference to the U.S General Accounting Office / Richard E. Brown; Critical requirements of a system of internal accounting control / Robert J. Sack; Discussant\u27s response to critical requirements of a system of internal accounting control / Jay M. Smith; Taxonomization of internal controls and errors for audit research / Miklos A. Vasarhelyi; Discussant\u27s response to taxonomization of internal controls and errors for audit research / John K. Wulff; Investigation of a measurement based approach to the evaluation of audit evidence / Theodore J. Mock, Arnold Wright; Discussant\u27s response to an investigation of a measurement based approach to the evaluation of audit evidence / Bart H. Ward; Authors\u27 reply to discussant\u27s response: An investigation of a measurement based approach to the evaluation of audit evidence / Theodore J. Mock, Arnold Wright; Look at the record on auditor detection of management fraud / Donald R. Ziegler; Discussant\u27s response to a look at the record on auditor detection of management fraud / Robert L. Grinaker; Auditing implications derived from a review of cases and articles relating to fraud / W. Steve Albrecht, Marshall B. Romney; Discussant\u27s response to auditing implications derived from a review of cases and articles related to fraud / Henry J. Murphy; Unique audit problems of small businesses that operate under managerial dominance / Dan M. Guy; Discussant\u27s response to unique audit problems of small businesses that operate under managerial dominance / Albert A. Armstrong; Accounting profession in the 1980\u27s -- Some SEC perspectives / George C. Mead;https://egrove.olemiss.edu/dl_proceedings/1004/thumbnail.jp

    Auditing Symposium VI: Proceedings of the 1982 Touche Ross/University of Kansas Symposium on Auditing Problems

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    Evolution of Audit reporting / Douglas R. Carmichael, Alan J. Winters; Discussant\u27s response to audit detection of financial statement errors / William F. Messier; Multi-Attribute model for audit evaluation / Theodore J. Mock, Michael G. Samet; Discussant\u27s response to a multi-attribute model for audit evaluation / Joseph X. Loftus; Some thoughts on materiality / Kenneth W. Stringer; Discussant\u27s response to some thought on materiality / Joseph J. Schultz; SAS 34 procedures vs forecast reviews: The Gap in GAAS / Robert Kay; Discussant\u27s response to SAS 34 procedures vs forecast reviews: The gap in GAAS / William R. Kinney; Development in governmental auditing: Their impact on the academic and business communities / Richard E. Brown; Discussant\u27s response to the evolution of audit reporting / J. Alex Milburn; How not to communicate material and immaterial weaknesses in accounting controls / Wanda A. Wallace; Discussant\u27s response to how not to communicate material and immaterial weaknesses in accounting controls / Alan N. Certain; Human information processing research in auditing A review and synthesis / Robert H. Ashton; Discussant\u27s response to human information processing research in auditing: a review and synthesis / Gary L. Holstrum; Audit detection of financial statement errors: Implications for the practitioner / Robert E. Hylashttps://egrove.olemiss.edu/dl_proceedings/1005/thumbnail.jp

    Use of Vegetation Monitoring and Professional Sharpshooting in White-Tailed Deer (Odocoileus virginianus) Management at Eagle Creek Park in Indianapolis

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    High white-tailed deer abundance at Eagle Creek Park (ECP) in Indianapolis necessitated active management to improve park habitat conditions. Significant deer impacts on local natural areas were first noted in the late 1990’s. Multiple years of deer browse monitoring, beginning in 2003, documented greatly impacted vegetation with heavy to severe browse damage in the park. After an initial managed hunt in 2014, population reductions have been accomplished exclusively at night by professional sharpshooters. Positive results are being evidenced through increasing pounds of venison per deer harvested and significant recovery of impacted vegetation communities

    The Atmospheric Effects of Stratospheric Aircraft: a First Program Report

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    Studies have indicated that, with sufficient technology development, high speed civil transport aircraft could be economically competitive with long haul subsonic aircraft. However, uncertainty about atmospheric pollution, along with community noise and sonic boom, continues to be a major concern; and this is addressed in the planned 6 yr HSRP begun in 1990. Building on NASA's research in atmospheric science and emissions reduction, the AESA studies particularly emphasizing stratospheric ozone effects. Because it will not be possible to directly measure the impact of an HSCT aircraft fleet on the atmosphere, the only means of assessment will be prediction. The process of establishing credibility for the predicted effects will likely be complex and involve continued model development and testing against climatological patterns. Lab simulation of heterogeneous chemistry and other effects will continue to be used to improve the current models

    Hubble Space Telescope Astrometry of the Procyon System

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    The nearby star Procyon is a visual binary containing the F5 IV-V subgiant Procyon A, orbited in a 40.84 yr period by the faint DQZ white dwarf Procyon B. Using images obtained over two decades with the Hubble Space Telescope, and historical measurements back to the 19th century, we have determined precise orbital elements. Combined with measurements of the parallax and the motion of the A component, these elements yield dynamical masses of 1.478 +/- 0.012 Msun and 0.592 +/- 0.006 Msun for A and B, respectively. The mass of Procyon A agrees well with theoretical predictions based on asteroseismology and its temperature and luminosity. Use of a standard core-overshoot model agrees best for a surprisingly high amount of core overshoot. Under these modeling assumptions, Procyon A's age is ~2.7 Gyr. Procyon B's location in the H-R diagram is in excellent agreement with theoretical cooling tracks for white dwarfs of its dynamical mass. Its position in the mass-radius plane is also consistent with theory, assuming a carbon-oxygen core and a helium-dominated atmosphere. Its progenitor's mass was 1.9-2.2 Msun, depending on its amount of core overshoot. Several astrophysical puzzles remain. In the progenitor system, the stars at periastron were separated by only ~5 AU, which might have led to tidal interactions and even mass transfer; yet there is no direct evidence that these have occurred. Moreover the orbital eccentricity has remained high (~0.40). The mass of Procyon B is somewhat lower than anticipated from the initial-to-final-mass relation seen in open clusters. The presence of heavy elements in its atmosphere requires ongoing accretion, but the place of origin is uncertain.Comment: Accepted by Astrophysical Journa

    Urban remote sensing applications: TIMS observations of the City of Scottsdale

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    A research program has been initiated between Arizona State University and the City of Scottsdale, Arizona to study the potential applications of TIMS (Thermal Infrared Multispectral Scanner) data for urban scene classification, desert environmental assessment, and change detection. This program is part of a long-term effort to integrate remote sensing observations into state and local planning activities to improve decision making and future planning. Specific test sites include a section of the downtown Scottsdale region that has been mapped in very high detail as part of a pilot program to develop an extensive GIS database. This area thus provides excellent time history of the evolution of the city infrastructure, such as the timing and composition of street repavement. A second area of study includes the McDowell intensive study by state and local agencies to assess potential sites for urban development as well as preservation. These activities are of particular relevance as the Phoenix metropolitan area undergoes major expansion into the surrounding desert areas. The objectives of this study in urban areas are aimed at determining potential applications of TIMS data for classifying and assessing land use and surface temperatures. Land use centers on surface impermeability studies for storm runoff assessment and pollution control. These studies focus on determining the areal abundance of urban vegetation and undeveloped soil. Highly experimental applications include assessment and monitoring of pavement condition. Temperature studies focus on determining swimming pool area and temperature for use in monitoring evaporating and urban water consumption. These activities are of particular relevance as the Phoenix metropolitan area undergoes major expansion into the surrounding desert area
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