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  • AERODYNAMICS  (3)
  • LAUNCH VEHICLES AND SPACE VEHICLES  (2)
  • Agaricus  (1)
  • Computer Programming and Software; Space Transportation and Safety  (1)
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  • 1
    Digitale Medien
    Digitale Medien
    Plasmid-like DNAs in the commercially important mushroom genus Agaricus (1984)
    Springer
    Current genetics 8 (1984), S. 615-619 
    Details
    ISSN: 1432-0983
    Schlagwort(e): Agaricus ; Plasmid-like DNAs ; Mitochondrial DNA
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary Two unique plasmid-like DNA components were localized in isolated mitochondria of the commercially important mushroom genus Agaricus: pEM (7.35 ± 0.15 kilobases) and pMPJ (3.65 ± 0.15 kilobases). These DNA moieties were linear; pEM possessed regions of terminal inverted repeated sequences. No homology was detected between pEM or pMPJ DNA and the nuclear or mitochondrial genomes. No homology existed between pEM and pMPJ. This suggests independent replication of pEM and pMPJ. Restriction endonuclease digests indicated that pEM consisted of two components (pEM1 and pEM2) with uniquely different restriction sites and copy number.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00395707
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 2
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    In-flight surface oil-flow photographs with comparisons to pressure distribution and boundary-layer data (1985)
    In:  CASI
    Details
    Publikationsdatum: 2019-06-28
    Beschreibung: Upper surface oil-flow photographs were obtained at transonic speeds on an F-111 transonic aircraft technology (TACT) aircraft, which had been fitted with a natural laminar-flow airfoil section. The oil-flow photographs were interpreted with regard to shock and boundary-layer characteristics and compared to results obtained from pressure distributions and boundary-layer measurements. Results indicated that flow phenomena (such as shock location and strength) and chord location of boundary-layer characteristics (such as transition location) could be correctly identified from the oil-flow photographs.
    Schlagwort(e): AERODYNAMICS
    Materialart: NASA-TP-2395 , H-1184 , NAS 1.60:2395
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 3
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    Aerodynamic flight research using the Pegasus air-launched space booster (1992)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-06-28
    Beschreibung: Completed and planned flight research using the Pegasus as a research vehicle and booster for other hypersonic research vehicles is reviewed. Highlights from flights 1 and 2 are discussed and compared with some analytical results. In particular, attention is given to total vehicle aerodynamics (performance and trim), local aerodynamics (pressure and heat flux distributions), and response of the thermal protection system. Future programs will include a metallic wing test section for laminar flow studies and the use of the Pegasus to boost a research vehicle to hypersonic speeds. The proposed concepts for a dedicated hypersonic research vehicle project are also discussed.
    Schlagwort(e): LAUNCH VEHICLES AND SPACE VEHICLES
    Materialart: AIAA PAPER 92-3990
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 4
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    Effects of winglets on a first-generation jet transport wing. 7: Sideslip effects on winglet loads and selected wing loads at subsonic speeds for a full-span model (1986)
    In:  CASI
    Details
    Publikationsdatum: 2019-06-28
    Beschreibung: The effect of sideslip on winglet loads and selected wing loads was investigated at high and low subsonic Mach numbers. The investigation was conducted in two separate wind tunnel facilities, using two slightly different 0.035-scale full-span models. Results are presented which indicate that, in general, winglet loads as a result of sideslip are analogous to wing loads caused by angle of attack. The center-of-pressure locations on the winglets are somewhat different than might be expected for an analogous wing. The spanwise center of pressure for a winglet tends to be more inboard than for a wing. The most notable chordwise location is a forward center-of-pressure location on the winglet at high sideslip angles. The noted differences between a winglet and an analogous wing are the result of the influence of the wing on the winglet.
    Schlagwort(e): AERODYNAMICS
    Materialart: NASA-TP-2619 , H-1193 , NAS 1.60:2619
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 5
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    Flow Visualization Techniques for Flight Research (1988)
    In:  CASI
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: In-flight flow visualization techniques used at the Dryden Flight Research Facility of NASA Ames Research Center (Ames-Dryden) and its predecessor organizations are described. Results from flight tests which visualized surface flows using flow cones, tufts, oil flows, liquid crystals, sublimating chemicals, and emitted fluids have been obtained. Off-surface flow visualization of vortical flow has been obtained from natural condensation and two methods using smoke generator systems. Recent results from flight tests at NASA Langley Research Center using a propylene glycol smoker and an infrared imager are also included. Results from photo-chase aircraft, onboard and postflight photography are presented.
    Schlagwort(e): AERODYNAMICS
    Materialart: NASA-TM-100455 , H-1524 , NAS 1.15:100455 , AGARD-PAPER-20 , AGARD Symposium of the Flight Mechanics Panel on Flight Test Techniques; Oct 17, 1988 - Oct 20, 1988; Edwards AFB, CA; United States
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 6
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    Pegasus hypersonic flight research (1992)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: Hypersonic aeronautics research using the Pegasus air-launched space booster is described. Two areas are discussed in the paper: previously obtained results from Pegasus flights 1 and 2, and plans for future programs. Proposed future research includes boundary-layer transition studies on the airplane-like first stage and also use of the complete Pegasus launch system to boost a research vehicle to hypersonic speeds. Pegasus flight 1 and 2 measurements were used to evaluate the results of several analytical aerodynamic design tools applied during the development of the vehicle as well as to develop hypersonic flight-test techniques. These data indicated that the aerodynamic design approach for Pegasus was adequate and showed that acceptable margins were available. Additionally, the correlations provide insight into the capabilities of these analytical tools for more complex vehicles in which design margins may be more stringent. Near-term plans to conduct hypersonic boundary-layer transition studies are discussed. These plans involve the use of a smooth metallic glove at about the mid-span of the wing. Longer-term opportunities are proposed which identify advantages of the Pegasus launch system to boost large-scale research vehicles to the real-gas hypersonic flight regime.
    Schlagwort(e): LAUNCH VEHICLES AND SPACE VEHICLES
    Materialart: SAE PAPER 921995 , ; 16 p.|SAE, Aerotech ''92 Conference; Oct 05, 1992 - Oct 08, 1992; Anaheim, CA; United States
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 7
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    BeiDou Orbit Determination Processes and Products in JPL's GDGPS System (2016)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: No abstract available
    Schlagwort(e): Computer Programming and Software; Space Transportation and Safety
    Materialart: JPL-CL-16-0652 , 2016 IGS Workshop; Feb 08, 2016 - Feb 12, 2016; Sydney; Australia
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
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