2,091 research outputs found

    Postcard, Rod Picott and Amanda Shires at Studio@620, St. Petersburg, Florida

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    A promotional postcard for a live performance by singer-songwriter Rod Picott and fiddler/singer-songwriter Amanda Shires at Studio@620. Touring in support of their debut duo release Sew Your Heart with Wires, the event promised an evening of original acoustic music.https://digitalcommons.usf.edu/bdj_studioat620_postcards/1039/thumbnail.jp

    Postcard, Rod Picott at Studio@620 in St. Petersburg, Florida

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    A promotional postcard for a live performance by singer-songwriter Rod Picott at Studio@620. Picott performed songs from his album Welding Burns, which reached #1 on the Freeform American Roots chart and #36 on the Americana Association\u27s music charts.https://digitalcommons.usf.edu/bdj_studioat620_postcards/1277/thumbnail.jp

    A rod-linear cascade model for emulating rotor-stator interaction noise in turbofans: A numerical study

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    This manuscript presents a rod-linear cascade model for emulating rotor-stator interaction noise. The model is intended as a test platform for studying noise mitigation techniques for a turbofan fan stage, while it also extends the classical rod-airfoil configuration by considering a row of blades based on realistic geometrical details. The rod-linear cascade model consists of a rod positioned upstream of a 7-blade linear cascade, such that the rod wake impinges onto the central blade. The rod is scaled to obtain a fundamental shedding frequency equal to the first blade passing frequency of the NASA-Glenn Source Diagnostics Test (SDT)fan stage at approach condition. The cascade blade profile is also based on the OGV of the SDT sampled at 90% of the radial span. Subsequently, numerical simulations are performed using lattice-Boltzmann Method on a computational setup comprised of a contraction and a test section enclosing the rod-linear cascade model. The integral length scales of the rod wake and the mean loading of the central blade have been found to be in good agreement with the trends observed in the SDT fan stage. The primary noise sources are localized at the central blade leading edge, although noise propagation to the far-field is influenced by additional diffraction by the other blades. Furthermore, the acoustic-blade row interaction causes intense pressure fluctuation within the inter-blade channels, including in those that are not directly affected by the rod wake.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Wind Energ

    the beat report piece on the outpouring of local music talent throughout the c

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    the beat report piece on the outpouring of local music talent throughout the country, mentioning Rod Picott, Slaid Cleaves, Ellis Paul, Mark Erelli, Michael Merenda, Nelson Norwood, Patty Griffin and Nick Curran

    Rod Korns

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    Photo showing J. Roderic ("Rod") Korns, a historian of western trails and author of "West from Fort Bridger

    Postcard, The 2012 Independent Music Concert Series at Studio@620, St. Petersburg, Florida

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    A promotional postcard for the 2012 Independent Music Concert Series at Studio@620, featuring a lineup of six musical events. The series includes performances by Jeff Black, Gurf Morlix, Grant Peeples, Storyhill, Rebecca Loebe, Rod Picott, Amanda Shires, Kevin Welch, The Trishas, and Sylvia Rusche, providing an opportunity to experience diverse live performances over six months.https://digitalcommons.usf.edu/bdj_studioat620_postcards/1082/thumbnail.jp

    Understanding migratory flow caused by helicoid wire spacers in rod bundles: An experimental and theoretical study

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    The core of a Liquid Metal Fast Breeder Reactor (LMFBR) consists of cylindrical fuel rods that are wrapped by a helicoidally-wound wire spacer to enhance mixing and to prevent damage by fretting. It is known that the liquid metal close to the rod is forced to follow the wires, and that liquid metal further away from the rod crosses the wires (called: migratory flow). This work aims at gaining more insight into the physics behind migratory flow and to provide a model for its bending angle. To this purpose, the flow field in a 7-rods, wire-wrapped, hexagonal bundle with water is studied within the Reynolds number range of 4990–16330 by using Particle Image Velocimetry (PIV). Refraction of the light is minimized by using Fluorinated Ethylene Propylene (FEP), which is a refractive index-matching (RIM) material. These measurements confirm that liquid near the rod follows the helicoid path and bends cross-wise with respect to the wire further away from the rod. A theoretical model for the bending angle of the flow is derived from the Euler equations and shows that the bending is primarily caused by the pressure gradient field induced by the wire. The model shows a very good correspondence with the experimentally obtained PIV data. These findings improve our understanding of the physics at play in rod bundle flows with wrapped wires and can be of assistance in developing practical correlations for frictional pressure losses and heat transfer in such bundles.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.RST/Reactor Physics and Nuclear MaterialsRST/Radiation, Science and Technolog

    Interplanetary robots: true stories of space exploration/ Rod Pyle.

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    Includes bibliographical references and index.A NASA insider tells the exciting story of robotic space missions to explore the solar system. Exploring the planets has been a goal of America's space program since the dawn of the space race. This insider's perspective examines incredible missions of robotic spacecraft to every corner of our solar system and beyond. Some were flown into glory, while others were planned and relegated to dusty filing cabinets. All were remarkable in their aspirations. Award-winning science writer Rod Pyle profiles both the remarkable spacecraft and the amazing scientists and engineers who made them possible. From the earliest sprints past Venus and Mars to Voyager1's current explorations of the space between the stars, this exciting book sheds new light on ever-more ambitious journeys designed to increase the human reach into the solar system. Drawing on his perspective as a writer for NASA's Jet Propulsion Laboratory, ground zero for NASA's planetary exploration, the author further details plans now in development to look for signs of life on Jupiter's moon Europa, submarines that will dive into the hazy hydrocarbon lakes of Saturn's moon Titan, and intelligent spacecraft that will operate for months without human intervention on Mars and in the outer solar system well into the 2030s. Equally compelling are programs of exploration that were considered but never left the drawing board, such as automobile-sized biology laboratories designed for a Mars landing in the 1960s and plans to detonate atomic bombs on the moon. Complemented by many rarely-seen photos and illustrations, these stories of incredible engineering achievements, daring imaginations, and technological genius will fascinate and inspire.1 online resourc
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