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  • Aeronautics (General)  (11)
  • Lunar and Planetary Science and Exploration  (4)
  • Humans
  • 2015-2019  (15)
  • 2000-2004
  • 2018  (5)
  • 2017  (10)
  • 1
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    UAS Operating Environments and Demand (2018)
    In:  CASI
    Details
    Publikationsdatum: 2018-03-10
    Beschreibung: No abstract available
    Schlagwort(e): Aeronautics (General)
    Materialart: AFRC-E-DAA-TN53598 , 2018 FAA UAS Symposium; 6-8 Mar. 2018; Baltimore, MD; United States
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 2
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    UAS Research - Who's Doing What? (2018)
    In:  CASI
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: This presentation includes the UAS-Enabled Market Categories used in Study, as well as the reason for the UAS-NAS NO Chase COA flight. It discusses the transitioning of a UA from different airspaces. UAS Integration is a community wide effort, and the FAA Symposium provides attendees with the opportunity to engage face-to-face with a cross-section of government and industry leaders and innovators about the latest industry developments, regulations, research, and other initiatives to safely integrate UAS into the National Airspace System (NAS).
    Schlagwort(e): Aeronautics (General)
    Materialart: AFRC-E-DAA-TN53416 , 2018 FAA UAS Symposium; Mar 06, 2018 - Mar 08, 2018; Baltimore, MD; United States
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 3
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    Effects of Space Weathering on Reflectance Spectra of Ureilites: First Studies (2018)
    In:  CASI
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: Ureilites are differentiated meteorites (ultramafic rocks interpreted to be mantle residues) that contain as much carbon as the most carbon-rich carbonaceous chondrites (CCs). Reflectance spectra of ureilites are similar to those of some CCs. Hence, ureilitic asteroids may accidentally be categorized as primitive because their spectra could resemble those of C-complex asteroids, which are thought to be CC-like. We began spectral studies of progressively laser-weathered ureilites with the goals of predicting UV-VIS-IR spectra of ureilitic asteroids, and identifying features that could distinguish differentiated from primitive dark asteroids. Space weathering has not previously been studied for ureilites, and, based on space weathering studies of CCs and other C-rich materials, it could significantly alter their reflectance spectra.
    Schlagwort(e): Lunar and Planetary Science and Exploration
    Materialart: JSC-E-DAA-TN52096 , Lunar and Planetary Science Conference; Mar 19, 2018 - Mar 23, 2018; The Woodlands, TX; United States
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 4
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    Bar Code Events in the Juno-UVS Data: Signature ~10 MeV Electron Microbursts at Jupiter (2018)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: One of the most intriguing discoveries of Juno is the quasi-systematic detection of upgoing electrons above the auroral regions. Here we discuss a by-product of the most energetic component of this population: a contamination resembling bar codes in the Juno-UVS images. This pattern is likely caused by bursts of 10 MeV electrons penetrating the instrument. These events are mostly detected when Junos magnetic footprint is located poleward of the main emission relative to the magnetic pole. The signal is not periodic, but the bursts are typically 0.11 s apart. They are essentially detected when Juno-UVS is oriented toward Jupiter, indicating that the signal is due to upgoing electrons. The event detections occur between 1 and 7 Jovian radii above the 1-bar level, suggesting that the electron acceleration takes place close to Jupiter and is thus both strong and brief.
    Schlagwort(e): Lunar and Planetary Science and Exploration
    Materialart: GSFC-E-DAA-TN66138 , Geophysical Research Letters (ISSN 0094-8276) (e-ISSN 1944-8007); 45; 22; 12108-12115
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 5
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    LTN Inlets and Nozzles Branch Overview; NASA GE - Methods Development Review (2017)
    In:  CASI
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: LTNInlets and Nozzles Branch Overview to be presented to GE during method review meeting. Presentation outlines the capabilities, facilities and tools used by the LTN Branch to conduct its mission of developing design and analysis tools and technologies for inlets and nozzles used on advanced vehicle concepts ranging from subsonic to hypersonic speeds.
    Schlagwort(e): Aeronautics (General)
    Materialart: GRC-E-DAA-TN43195 , NASA/GE- Methods Development Review; Jun 01, 2017; Cleveland, OH; United States
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 6
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    Blockage Testing in the NASA Glenn 225 Square Centimeter Supersonic Wind Tunnel (2017)
    In:  CASI
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: A feasibility study is in progress at NASA Glenn Research Center to implement a magnetic suspension and balance system in the 225 sq cm Supersonic Wind Tunnel for the purpose of testing the dynamic stability of blunt bodies. An important area of investigation in this study was determining the optimum size of the model and the iron spherical core inside of it. In order to minimize the required magnetic field and thus the size of the magnetic suspension system, it was determined that the test model should be as large as possible. Blockage tests were conducted to determine the largest possible model that would allow for tunnel start at Mach 2, 2.5, and 3. Three different forebody model geometries were tested at different Mach numbers, axial locations in the tunnel, and in both a square and axisymmetric test section. Experimental results showed that different model geometries produced more varied results at higher Mach Numbers. It was also shown that testing closer to the nozzle allowed larger models to start compared with testing near the end of the test section. Finally, allowable model blockage was larger in the axisymmetric test section compared with the square test section at the same Mach number. This testing answered key questions posed by the feasibility study and will be used in the future to dictate model size and performance required from the magnetic suspension system.
    Schlagwort(e): Aeronautics (General)
    Materialart: GRC-E-DAA-TN38534 , AIAA SciTech 2017; Jan 09, 2017 - Jan 13, 2017; Grapevine, TX; United States
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 7
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    Blockage Testing in the NASA Glenn 225 Square Centimeter Supersonic Wind Tunnel (2017)
    In:  CASI
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: The starting characteristics for three different model geometries were tested in the Glenn Research Center 225 Square Centimeter Supersonic Wind Tunnel. The test models were tested at Mach 2, 2.5 and 3 in a square test section and at Mach 2.5 again in an asymmetric test section. The results gathered in this study will help size the test models and inform other design features for the eventual implementation of a magnetic suspension system.
    Schlagwort(e): Aeronautics (General)
    Materialart: GRC-E-DAA-TN38535 , SciTech 2017; Jan 09, 2017 - Jan 13, 2017; Grapevine, TX; United States
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 8
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    Pyroclastics Northeast of Gassendi Crater: Discovery/Characteristics/Implications (2017)
    In:  CASI
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: In our ongoing effort to better understand lunar volcanism on the Moon, we are investigating pyroclastic deposits in the Gassendi region. Interest in pyroclastics has remained high due to the availability of high-resolution data (LRO, Kaguya), which is used to build on previous remote sensing studies [e.g., 1, 2, 3] and also extensive studies of lunar pyroclastic glasses [4, 5]. Analyses conducted in the laboratory of pyroclastic spheres from several deposits show that this volcanic material had a greater depth of origin and lesser fractional crystallization than mare basalts [e.g., 4, 6]. Data indicates that pyroclastic glasses are the best examples of primitive materials on the Moon, and they are important for both characterizing the lunar interior and as a starting place for under-standing the origin and evolution of lunar basaltic magmatism [2].
    Schlagwort(e): Lunar and Planetary Science and Exploration
    Materialart: JSC-CN-38868 , Lunar and Planetary Science Conference; Mar 20, 2017 - Mar 24, 2017; The Woodlands, TX; United States
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 9
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    Market Large UAS and HALE (2017)
    In:  CASI
    Details
    Publikationsdatum: 2019-08-14
    Beschreibung: This presentation is an overview of future emerging aviation markets.
    Schlagwort(e): Aeronautics (General)
    Materialart: AFRC-E-DAA-TN42222
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 10
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    Performing a Comprehensive Unmanned Aircraft System Full Integration Analysis for NASA ARMD (2018)
    In:  CASI
    Details
    Publikationsdatum: 2019-08-14
    Beschreibung: For many years, the concept of routinely flying unmanned aircraft systems (UAS) within the national airspace system (NAS) has been a long-term goal with numerous known and unknown technology and policy obstacles. Just within the last few years, the efforts and advancements from government, industry, and academia-sponsored research and development have greatly shortened the distance to the goal. The National Aeronautics and Space Administration (NASA) Aeronautics Research Mission Directorate (ARMD) has recognized that it is uniquely positioned to play a lead role in addressing the remaining UAS airspace integration (AI) challenges. To fully understand the magnitude and scope of these challenges, NASA ARMD initiated a study in 2015 to identify what would be needed to enable full integration of UAS for civil/commercial operations within the NAS by 2025. The desired outcome was a comprehensive analysis framework that ARMD could use to develop a research portfolio focused on retiring the remaining gaps and challenges standing in the way of full UAS integration. This document is a comprehensive assessment of UAS integration research to date.
    Schlagwort(e): Aeronautics (General)
    Materialart: AFRC-E-DAA-TN51123 , NASA/TM--2018-219751
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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