NASA - National Aeronautics and Space Administration (NASA): Recent submissions

Now showing items 3341-3360 of 3613

    • NASA-LLIS-1504 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The Orbital Space Plane (OSP) Program technical content and review standards were diluted as the program accelerated and budgets adjusted. Altered plans produce altered results. Address ...
      Subject(s) : Administration/Organization , Policy & Planning , Program and Project Management ,

    • NASA-TP-2990 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1990
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Experimental and theoretical aerodynamic characteristics were compared for a high-lift, semispan wing configuration that incorporated a slightly modified version of the NASA Advanced Laminar Flow Control airfoil section. ...
      Subject(s) : AERODYNAMIC , AIRFOIL , BOUNDARY , CHARACTERISTICS , COMPUTER , CONFIGURATIONS , CONTROL , DISTRIBUTION , DRAG , DYNAMICS , EDGES , FLOW , FLUID , LAMINAR , LAYER , LEADING , LIFT , METHOD , MODELS , MOMENT , NUMBER , PANEL , PRESSURE , PROFILES , PROGRAMS , REYNOLDS , SEMISPAN , SEPARATED , SUBSONIC , TUNNELS , WIND ,

    • NASA-TN-D-55 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1960
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An investigation has been made in the 17-foot test section of the Langley 300-MPH 7- by 10-foot tunnel to determine the longitudinal aerodynamic characteristics of tilt-wing, deflected-slipstream, and combination tilt-wing ...
      Subject(s) : AERODYNAMIC , AERODYNAMICS , AIRCRAFT , CHARACTERISTICS , CONFIGURATIONS , EFFECT , GROUND , PROPELLERS , TAKEOFF , TESTS , TUNNEL , VERTICAL , WIND ,

    • NASA-CR-2270 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1973
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The hydrodynamic theory of the extreme pool boiling heat fluxes is expanded to embrace a variety of problems that have not previously been analyzed. These problems include the prediction of the peak heat flux on a variety ...
      Subject(s) : ELECTROLYSIS , FILM BOILING , HEAT FLUX , HEAT GENERATION , HEATING EQUIPMENT , MATERIALS TESTS , MICROGRAVITY , THERMODYNAMIC PROPERTIES ,

    • NASA-LLIS-0490 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1996
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      International travelers should be prepared to deal with grounding problems that have been experienced by NASA personnel. As an example, several personnel have been ...
      Subject(s) : Energy , Facilities ,

    • NASA-LLIS-0262 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1993
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The magnitude of both the real-time cruise activities and the work required to perform advanced planning for future activities, such as encounter, landing site certification, test and training, ...
      Subject(s) : Administration/Organization , Policy & Planning ,

    • NASA-TP-1435 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1979
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      Experimental data for scale-model aircraft are used to define the aerodynamic characteristics of full-scale aircraft, verify theoretically predicted aerodynamic characteristics, and provide data where ...

    • NASA-LLIS-1301 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2002
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      The science team was not an active participant in the mission development, due to an ill-defined role and corresponding lack of budget.
      Subject(s) : Administration/Organization ,

    • NACA-RM-L54E19 REV A 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1954
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      The design of the internal-flow system of a turbojet-powered aircraft for optimum operation at transonic or supersonic speeds tends to compromise the operation of the system at conditions corresponding to ...

    • NASA-LLIS-6657 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2012
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Use of a multi-mission operations system has permitted new NASA projects to reduce the cost, schedule, and risk of developing such systems anew, while improving mission performance. Projects should be AMMOS "capability-driven," ...

    • NACA-TR-1170 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1954
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A review is presented of available information on the behavior of brittle and ductile materials under conditions of thermal stress and thermal shock. For brittle materials, a simple formula relating physical properties to ...
      Subject(s) : AGING (MATERIALS) , ANALYSIS (MATHEMATICS) , BRITTLE MATERIALS , DUCTILITY , FRACTURE STRENGTH , METALS , SHOCK RESISTANCE , STRESS ANALYSIS , STRESS CONCENTRATION , THERMAL EXPANSION , THERMAL STRESSES , THERMODYNAMIC PROPERTIES ,

    • NASA NPR 5900.1 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2008
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Purpose
      This NPR provides internal guidance in the following areas for Agencywide roles in procuring spare parts:
      Program
      Procurement
      Logistics
      Engineering
      Applicability ...

    • NASA-TN-D-3149 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1966
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Variable amplitude axial load fatigue test on notched aluminum alloy specimens - aircraft component testing.
      Subject(s) : AIRCRAFT PART , AIRCRAFT PARTS , ALUMINUM ALLOY , ALUMINUM ALLOYS , AXIAL LOAD , AXIAL LOADS , FATIGUE TEST , FATIGUE TESTS , LOAD TESTS , LOADS (FORCES) , METAL FATIGUE , NOTCH TESTS , NOTCHED METAL ,

    • NASA-LLIS-0330 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1993
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      KSC post flight inspections of RSRM-2 (STS 27) showed a 3.5" x 3.5" piece of JPS cork missing from the right hand center field joint at 185 degrees indicating debris. An ...
      Subject(s) : Hardware , Parts Materials & Processes ,

    • NASA-LLIS-2116 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2009
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Many spacecraft include mission operations that implement an irreversible process(s) (e.g. pyro technical deployments) which changes the state or configuration of the spacecraft and its ...
      Subject(s) : Engineering Design (Phase C/D).Spacecraft and Spacecraft Instruments , Integration and Testing , Manufacturing and Assembly ,

    • NASA-LLIS-0989 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2001
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      The ETU Laser for GLAS started showing signs of failing to lase. Initial failure investigations pointed to the laser Oscillator Diode. A detailed investigation disclosed ...
      Subject(s) : Configuration Management , Flight Equipment , Hardware , Parts Materials & Processes , Risk Management/Assessment , Safety & Mission Assurance , Spacecraft , Test & Verification ,

    • NACA-RM-A7K24 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1948
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      An investigation bf. the theoretical prediction of control surface hinge moments by lifting-surface theory has been undertaken by the NACA. The 1fftIn~UTface theory is a further refinement to the lifting-line ...

    • NASA-LLIS-0677 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Thoroughly test high voltage power supply packaging on flight configured engineering models, in a simulated space flight environment, to evaluate corona effects.

    • NASA-LLIS-1721 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2006
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      A system of pre-start tasks ane emergency plannning ameliorated the effects of an arc blast to an employee.
      Subject(s) : Additional Categories. , Additional Categories.Emergency Preparedness , Additional Categories.Facilities , Additional Categories.Human Factors , Additional Categories.Human Resources & Education , Additional Categories.Industrial Operations , Additional Categories.Personal Protective Equipment , Additional Categories.Policy & Planning , Additional Categories.Risk Management/Assessment , Additional Categories.Safety & Mission Assurance ,

    • NASA-LLIS-1521 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2005
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      A history of commanding anomalies experienced by the Mars Global Surveyor, Stardust, Mars Odyssey, and Genesis missions prompted JPL to perform a comprehensive review of the command uplink ...
      Subject(s) : command failures , Communication Systems , erroneous commanding , Flight Operations , flight team anomalies , Ground Operations , Information Technology/Systems , mission operations , operations assurance , operations procedures , operations training , Safety & Mission Assurance , Software , Spacecraft , Test & Verification ,