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

Now showing items 2521-2540 of 3613

    • NACA-TN-715 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1939
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An investigation has been made in the N.A.C.A. 7- by 10-foot wind tunnel of a large-chord N.A.C.A. 23012 airfoil with several arrangements of a 40-percent-chord slotted flap to determine the section aerodynamic characteristics ...

    • NASA NPD 9501.1 REV I 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2010
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: APPLICABILITY
      This instruction applies to NASA Headquarters and NASA Centers, including Component Facilities and Technical and Service Support Centers. This language applies to JPL, other contractors, ...

    • NASA-LLIS-0797 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Modeling is utilized for the analysis of conducted and radiated electromagnetic interference (EMI) caused by an electrostatic discharge (ESD) event. The modeling requires the combined use of ...

    • NASA-LLIS-1612 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2005
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      A senior individual with experience in many space flight projects, including several X-vehicles, had several observations regarding the readiness of the Agency»s human capital and ...
      Subject(s) : Policy & Planning , Procurement , Program and Project Management , Risk Management/Assessment , Safety & Mission Assurance , Small Business & Industrial Relations ,

    • NACA-TR-825 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1945
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The analysis of results of wind-tunnel stability and control tests of powered airplane models in terms of the flying qualities of full-scale airplanes is advocated. In order to indicated the topics upon which comments are ...

    • NASA-LLIS-0922 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Due to the formation of a "hydraulic deadband," MPL solar panels "flopped" when deployed following thermal vacuum test. Sustained exposure to full or partial vacuum may create bubbles in ...

    • NASA NPD 1600.3 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2007
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: APPLICABILITY
      This NPD applies to NASA Headquarters and Centers, including Component facilities, resident agencies and other tenants, NASA contractors, visitors, and the Jet Propulsion Laboratory to ...

    • NACA-TN-3819 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1957
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An analysis has been made of available experimental data to show the effects of most of the variables that are more predominant in determining base pressure at supersonic speeds. The analysis covers base pressures for ...
      Subject(s) : AIRFOILS , ANGLE , ATTACK , BASE , BOATTAILS , BODIES , BOUNDARY , DIMENSIONAL , FINENESS , FINS , FLOW , LAYER , MACH , NUMBER , PRESSURE , RATIO , REVOLUTION , SEPARATION , SPEED , SUPERSONIC , TURBULENT , TWO ,

    • NASA-LLIS-1219 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      The description that follows will demonstrate that pre-flight troubleshooting relied on history of a similar failure and did not check the actual configurations of certain ...
      Subject(s) : Configuration Management , Hardware , Independent Verification and Validation , Policy & Planning , Safety & Mission Assurance , Software , Test & Verification ,

    • NASA-LLIS-0519 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1994
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      NASA TM 107442 entitled, "Monitoring Damage Growth in Titanium Matrix Composites Using Acoustic Emission", has been published. This work was coauthored by J.G. Bakuckas ...
      Subject(s) : Parts Materials & Processes , Research & Development ,

    • NASA-LLIS-1278 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2002
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Due to resource constraints and a past history of success with a specific commercial vendor the Project decided to reduce the amount of in-house Quality Assurance (QA) ...
      Subject(s) : Hardware , Parts Materials & Processes , Risk Management/Assessment , Safety & Mission Assurance ,

    • NACA-TN-3996 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1957
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A straight outer-wall annular diffuser having a center-body length of one-half the outer-body diameter and an area ratio of 1.9:1 has been investigated for mean inlet flow angles of 0° and 19.5° in order to ...

    • NASA NPD 1383.1 REV C 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2011
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Applicability
      a. This directive applies to NASA Headquarters and NASA Centers, including Component Facilities and Technical and Service Support Centers.

    • NASA-LLIS-0132 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      The QD/filter assemblies are designed to provide a disconnected interface and remove all solid particles from the servicing fluids, which exceed 25 microns in size. The ...
      Subject(s) : Ground Equipment , Ground Operations , Hardware , Logistics , Risk Management/Assessment ,

    • NASA-LLIS-1135 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Workforce Downsizing and Human Resources Policies Having Adverse Impact on Management Experience.
      Subject(s) : Administration/Organization , Aerospace Safety Advisory Panel , Human Resources & Education , Policy & Planning , Risk Management/Assessment ,

    • NASA-LLIS-2676 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2010
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      A logistics team of USA, NASA and MIT performed a study to look at current NASA Space Flight Programs (Space Shuttle and International Space Station) logistics practices. This team documented ...
      Subject(s) : Additional Categories.Ground Operations , Mission Operations and Ground Support Systems.Logistics and maintenance , Missions and Systems Requirements Definition.Configuration control and data management , Missions and Systems Requirements Definition.Mission concepts and life-cycle planning , Program Management.Program planning development and management , Program Management.Risk management , Safety and Mission Assurance.Reliability , Systems Engineering and Analysis.Long term sustainability and maintenance planning ,

    • NACA-TR-1339 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1957
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An analysis of the longitudinal characteristics of swept wings which is based on available large-scale low-speed data and supplemented with low-scale data when feasible is presented. The emphasis has been placed on the ...
      Subject(s) : AERODYNAMIC , AIRFOIL , ANGLE , ASPECT , DEVICES , DRAG , EDGES , FLOW , HIGH , LEADING , LIFT , LONGITUDINAL , LOW , MOMENTS , NUMBER , PITCHING , PROFILES , RATIO , REYNOLDS , SEPARATED , SPEED , STABILITY , STALLING , SWEEP , SWEPT , SWEPTBACK , TESTS , TRAILING , TUNNEL , WIND , WINGS ,

    • NASA-LLIS-0755 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Meticulous control of vibration, environmental factors, and machining parameters are required to produce precision diffractive, refractive, reflective and hybrid optical components for aerospace ...

    • NASA NPD 1200.1 REV E 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2008
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: APPLICABILITY
      This NASA Policy Directive (NPD) applies to NASA Headquarters and NASA Centers, including Component Facilities and Service Support Centers. The Jet Propulsion Laboratory is subject to its ...

    • NASA-STD-2818 VER 3.0 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2011
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The DTV system standards described in this document are associated with those industrial or professional systems used to produce full motion and full resolution digital video imagery that is suitable for critical closed ...