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NASA - National Aeronautics and Space Administration (NASA): Recent submissions
Now showing items 2261-2280 of 3613
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NASA-LLIS-2016
Abstract: Abstract:
Between February 1998 and March 2005, NASA conducted a study called National Aeronautics Operational Monitoring System, also known as NAOMS. NAOMS is a survey-based data collection system ...Subject(s) : Additional Categories.Information Technology/Systems , Program Management.Acquisition / procurement strategy and planning , Program Management.Business processes , Program Management.Education and public engagement , Program Management.Organizational Planning , Program Management.Role of civil service technical staff versus contractor staff , Safety and Mission Assurance.Quality , -
NASA MPD 3312.1 REV A
Abstract: PURPOSE
This Marshall Policy Directive (MPD) states the policy and general requirements by which the Marshall Space Flight Center's (MSFC's) position management program shall operate. This MPD describes ... -
NACA-RM-A8F15
Abstract: INTRODUCTION
For supersonic aircraft, the wings of which are not swept behind the Mach cone, airfoil sections -with sharp leading edges are considered necessary to minimize the drag due to wave resistance. The maximum ... -
NASA-LLIS-0600
Abstract: Abstract:
Capture of lessons learned throughout the project life cycle is generally more efficient and effective than waiting until project development is completed. Throughout the flight project ...Subject(s) : Administration/Organization , Policy & Planning , -
NASA-LLIS-1758
Abstract: Abstract:
A video clip lesson learned on the topic of Process Control. During the process of machining a piece of mission critical hardware, a metal lathe was shut down so that a new filter system could ...Subject(s) : Additional Categories.Configuration Management , Additional Categories.Hardware , Additional Categories.Human Resources & Education , Additional Categories.Industrial Operations , Additional Categories.Parts , Materials , & Processes , Additional Categories.Safety & Mission Assurance , Manufacturing and Assembly , Safety and Mission Assurance.Advanced planning of safety systems , Safety and Mission Assurance.Configuration Change Control , Safety and Mission Assurance.Maintenance , Safety and Mission Assurance.Product Assurance , Safety and Mission Assurance.Quality , -
NASA-TT-F-823
Abstract: The vortex theory, and some aspects of velocity potential were discussed. Oblique and axial translations of a lifting airscrew in an ideal fluid are considered first, within the limits of linear and nonlinear theories. ...Subject(s) : AERODYNAMICS , COMPRESSIBLE , DISTRIBUTION , FLOW , FLUIDS , IDEAL , LIFTING , POTENTIAL , PROPELLERS , ROTOR , ROTORS , THEORY , VELOCITY , VISCOUS , VORTICES , -
NASA-LLIS-1532
Abstract: Abstract:
A test error was suspected during ground performance testing of the Tropospheric Emission Spectrometer (TES) until it was determined that the Environmental Requirements Documentspecified test ...Subject(s) : Environment , Environment Definitions , Environmental Analysis , Environmental Assurance Plan , Environmental Compliance , Environmental Design Requirements , Environmental Margins , Environmental Requirements Engineer (ERE) , Environmental Test , Environmental Verification , Hardware , Maximum Expected Flight Level (MEFL) , Mission Environments , Payloads , Safety & Mission Assurance , Spacecraft , Test & Verification , Test Error , Thermal Model , -
NASA-LLIS-0452
Abstract: Description of Driving Event:
The failure analysis of a temperature probe for a cryogenic hydrogen system was investigated by instrumentation systems engineering for effects on the instrumentation ...Subject(s) : Safety & Mission Assurance , -
NASA-TN-D-7670
Abstract: An investigation of a four-engine externally blown flap (EBF) powered-lift transport was conducted in the Langley V/STOL tunnel to determine the effect of different engine configurations on the longitudinal aerodynamic ...Subject(s) : ACQUISITION , AERODYNAMIC , AIRCRAFT , BLOWN , CHARACTERISTICS , CONFIGURATIONS , DATA , ENGINES , EXTERNALLY , FLAPS , LONGITUDINAL , PERFORMANCE , PROPULSION , STABILITY , STOL , SYSTEM , TESTS , TRANSPORT , TUNNEL , WIND , -
NASA-LLIS-1268
Abstract: Description of Driving Event:
Several unplanned post-launch tests were run on a mission in the post-environmental test timeframe, which, in fact, uncovered several important problems, which needed ...Subject(s) : Test & Verification , -
NACA-RM-L53D17
Abstract: INTRODUCTION
The spoiler used as a lateral-control device has been the subjected of considerable investigation at low and high speeds, and on both swept and unswept wings. Recent investigations of spoilers used as ... -
NASA NPR 9020.1
Abstract: PURPOSE
This NASA Procedural Requirements (NPR) document provides the definitions of key financial management terms.
APPLICABILITY
This NPR is applicable to NASA Headquarters ... -
NASA NPR 9680.1
Abstract: PURPOSE
This NASA Procedural Requirement (NPR) provides criteria for the financial management of grants and cooperative agreements with regard to fund advances, letters of credit, suspension and ... -
NASA-TP-2481
Abstract: An experimental investigation was conducted to study the effect of various parameters on the cornering forces produced by a rolling aircraft tire installed on a tilted, free-swiveling nose gear. The parameters studied ...Subject(s) : AIRCRAFT MANEUVERS , AIRCRAFT TIRES , ANGULAR DISTRIBUTION , ATTITUDE (INCLINATION) , FORCE DISTRIBUTION , GEARS , NOSE WHEELS , PRESSURIZING , SLOPES , TORQUE , VERTICAL DISTRIBUTION , -
NASA-LLIS-0314
Abstract: Description of Driving Event:
Silicone was used to compensate for the differences in coefficient of thermal expansion between electrical components and the basic epoxy module material. The silicone was ...Subject(s) : Hardware , -
NASA-LLIS-0003
Abstract: Description of Driving Event:
While installing electrical cables into a conduit in the Johnson Space Center Mission Control Room, the conduit was displaced from its mounting, and then contacted and ...Subject(s) : Configuration Management , Emergency Preparedness , Facilities , Ground Equipment , Industrial Operations , -
NASA-LLIS-1045
Abstract: Description of Driving Event:
Certification of Self-Contained Atmospheric Protective Ensemble (SCAPE) Auditors.Subject(s) : Administration/Organization , Aerospace Safety Advisory Panel , Communication Systems , Ground Operations , Hazardous/Toxic Waste/Materials , Human Resources & Education , Industrial Operations , Policy & Planning , Risk Management/Assessment , Safety & Mission Assurance , -
NASA NPR 7150.2 REV A
Abstract: Purpose
Software engineering is a core capability and a key enabling technology for NASA's missions and supporting infrastructure. This NASA Procedural Requirements (NPR) supports the implementation ... -
NASA-LLIS-0614
Abstract: Description of Driving Event:
While performing a functional retest of a Shuttle hatch movement, following a hatch actuator R&R, the GSE support structure failed. As a result, the hatch hinges and hinge ...Subject(s) : Ground Equipment , Hardware , Human Factors , -
NACA-ARR-4E31
Abstract: INTORDUCTION
The design of curved sheet panels to resist shear involves a consideration of several factors: the buckling resistance of the sheet, the stress at which buckling becomes permanent, and the strength which ...Subject(s) : ALLOYS , ALUMINUM , AXIAL , BENDING , BUCKLING , CIRCULAR , COMPRESSION , CURVED , CYLINDERS , FAILURE , LOADS , MEMBER , PANELS , REINFORCEMENT , RINGS , SHEAR , SKIN , STIFFENING , STRENGTH , STRESS , STRUCTURAL , TENSILE , TESTS , TORSIONAL , TWISTING ,