NASA - National Aeronautics and Space Administration (NASA): Recent submissions
Now showing items 1821-1840 of 3613
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NASA-LLIS-1024
Abstract: Description of Driving Event:
Inadequate Procedures for Documenting Firmware Placed in ISS Components.Subject(s) : Aerospace Safety Advisory Panel , Configuration Management , Safety & Mission Assurance , Software , -
NASA NPR 9220.1 REV A
Abstract: Purpose
This NASA Procedural Requirements (NPR) provides the financial management requirements for journal voucher preparation and approval and intragovernmental transactions.
Applicabili ... -
NASA-LLIS-0539
Abstract: Description of Driving Event:
Front panel of a locker designed for use on Mir and Shuttle did not originally have safeties on breakers.Subject(s) : Human Factors , Safety & Mission Assurance , -
NASA-LLIS-0648
Abstract: Practice:
The use of a checklist which delineates specific reliability and maintainability (R&M) considerations during design reviews ensures that no critical R&M consideration will be overlooked during ... -
NASA-LLIS-1582
Abstract: Abstract:
In August of 2003, a NASA Standard Initiator (NSI) test program was started. Four NSIs were modified to induce ejection, or in other words, a system failure in the test chamber. Three items ...Subject(s) : Accident Investigation , Configuration Management , Energetic Materials - Explosive/Propellant/Pyrotechnic , Explosives Handling , Handling , Launch Process , Packaging , Risk Management/Assessment , Safety & Mission Assurance , Storage , Test & Verification , -
NASA-LLIS-1413
Abstract: Abstract:
The NASA Engineering & Safety Center (NESC) received a dissenting opinion describing aerodynamic concerns leading to a potential loss of vehicle control that would result in a failure to ...Subject(s) : Administration/Organization , Configuration Management , Flight Equipment , Flight Operations , Ground Equipment , Ground Operations , Hardware , Independent Verification and Validation , Launch Process , Policy & Planning , Program and Project Management , Risk Management/Assessment , Safety & Mission Assurance , Spacecraft , -
NASA-LLIS-0298
Abstract: Description of Driving Event:
At the White Sands Test Facility (WSTF) a burst disc on a high pressure (9700 psi) oxygen system ruptured at 5700 psi, well below the system and rated pressure of the disc. ...Subject(s) : Facilities , Pressure Vessels , -
NACA-RM-E51F26
Abstract: Experimental side and bade pressure distributions over a series of conical boattails without and with jet flow from the base are presented at a Mach number of 1.91. For the case of no jet flow the methods of characteristics ...Subject(s) : BODIES , CANOPIES , EXITS , FLOW , FUSELAGE , INTERFERENCE , JET , LOADS , MISSILES , MIXING , NACELLES , SHAPE , VARIABLES , -
NASA-LLIS-0402
Abstract: Abstract:
Multi-year storage and aging of solder plated terminals for TOPEX and ASTROS circuit boards affected their solderability. Consider aging and solderability factors, and perform solderability ...Subject(s) : Environment , Logistics , Packaging Handling Storage , Parts Materials & Processes , -
NASA-LLIS-0250
Abstract: Description of Driving Event:
A section of a piping system was removed from a test facility for outside pressure testing. The pipe section had an expansion bellows mounted on the end that was not ...Subject(s) : Pressure Vessels , Test & Verification , -
NASA-TN-D-5153
Abstract: Pilot rating scales and their use in assessing aircraft handling qualities -
NACA-TN-759
Abstract: Pressure-distribution tests of an NACA 0009 airfoil with a 30-percent-chord plain flap and three plain tabs, having chords 10, 20, and 30 percent of the flap chord, were made. The purpose of these tests was to continue an ... -
NASA-LLIS-1223
Abstract: Description of Driving Event:
The basis of the Z1 ITS modeling strategy in the preliminary and conceptual design phases was a simplified beam element representation of the primary structure bulkheads ...Subject(s) : Computer-Aided Design/Manufacturing/Engineering , Flight Equipment , Ground Equipment , Hardware , Independent Verification and Validation , Policy & Planning , Risk Management/Assessment , Safety & Mission Assurance , Test & Verification , -
NASA-LLIS-1163
Abstract: Description of Driving Event:
Updating Shuttle Ground Processing Work Documentation, Status.Subject(s) : Aerospace Safety Advisory Panel , Configuration Management , Ground Operations , Human Factors , Human Resources & Education , Parts Materials & Processes , Safety & Mission Assurance , Spacecraft , -
NASA-LLIS-0796
Abstract: Practice:
Network circuit analysis programs are valuable tools in the analysis of switching circuit transients which are capable of generating conducted and radiated electromagnetic interference (EMI). ... -
NASA-TN-D-3327
Abstract: Thermodynamic and transport properties of oxygen- nitrogen equilibrium system.Subject(s) : CHAPMAN-ENSKOG THEORY , CHEMICAL EQUILIBRIUM , NITROGEN , OXYGEN , THERMODYNAMIC PROPERTIES , THERMODYNAMIC PROPERTY , TRANSPORT PROPERTIES , TRANSPORT PROPERTY , -
NASA-LLIS-0063
Abstract: Description of Driving Event:
During the cerachrome insulation baking process of three injector/chamber assemblies, severe oxidation of the assemblies was observed. The required baking temperature, per ...Subject(s) : Hardware , Packaging Handling Storage , Parts Materials & Processes , -
NACA-WRL-258
Abstract: Results are presented of tests of two specimens tested to study the effect of normal pressure on the critical compressive stress for thin curved sheets. These specimens are designated by their respective rib spacings of ...Subject(s) : ATMOSPHERIC PRESSURE , BUCKLING , COMPRESSIVE STRENGTH , CRITICAL LOADING , CURVED PANELS , LOAD TESTS , PRESSURE EFFECTS , REINFORCEMENT (STRUCTURES) , RIBS (SUPPORTS) , SHEETS , SPACING , -
NASA-LLIS-0994
Abstract: Description of Driving Event:
Employees inhaled small fiberglass fibers from not using the vacuum system which was available and lack of adequate safety procedures.Subject(s) : Facilities , Ground Operations , Hazardous/Toxic Waste/Materials , Independent Verification and Validation , Industrial Operations , Occupational Health , Personal Protective Equipment , Safety & Mission Assurance , Training Equipment , -
NACA-TN-3393
Abstract: An investigation was undertaken in the Ames 10- by 14-inch super-sonic wing tunnel to determine some of the base pressure characteristics of related bodies of revolution at zero angle of attack. The basic body shape used ...

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