Research & information: general books

This is the acquisition activities plan for the software to be used in the Earth Observing System (EOS) Advanced...  Read More >>

Development and application of linear array imaging technologies to address specific aging-aircraft inspection issues...  Read More >>

The investigation 'Dusty Plasma Dynamics Near Surfaces in Space' is an experimental and theoretical study of the...  Read More >>

The solubility measurement system and the laser scattering microscope system were designed, built, and utilized...  Read More >>

The purpose of this research was to test the hypotesis that a reduction in blood volume would attenuate or eliminate...  Read More >>

The maximum altitude attainable for a solar powered aircraft without any energy storage capability is examined....  Read More >>

The analytical derivations of the non-axial thrust divergence losses for convergent-divergent nozzles are described...  Read More >>

The capability to measure the dielectric properties of various materials has been developed in the Electromagnetic...  Read More >>

This paper presents a study of the dynamics for a single-stage, axial-flow, high speed compressor core, specifically,...  Read More >>

An edge based finite element formulation with vector absorbing boundary conditions is presented for scattering by...  Read More >>

Double-cantilever beam fracture toughness tests were performed by the Composite Materials Research Group on several...  Read More >>

For automatic obstacle avoidance guidance during rotorcraft low altitude flight, a reliable model of the nearby...  Read More >>

The application of Fuzzy Logic Controllers (FLC's) to the control of nonlinear processes, typically controlled by...  Read More >>

The demonstration of repeated gamma-ray bursts from an individual source would severely constrain burst source models....  Read More >>

Experimental tests were performed on the NASA/Bell Helicopter Textron (BHT) 500 hp advanced technology transmission...  Read More >>

The microbial ecology facility in the Analytical and Physical Chemistry Branch at Marshall Space Flight Center is...  Read More >>

Finite-element solution technology developed for use in conjunction with advanced viscoplastic models is described....  Read More >>

Output voltage Total Harmonic Distortion (THD) of a 20kHz, 6kVA Mapham resonant inverter is characterized as a function...  Read More >>

The topology of a crowned spur pinion tooth surface that reduces the level of transmission errors due to misalignment...  Read More >>

The plan is described for the integrated testing and benchmark of Phase Ada based ESBT Design Research Project....  Read More >>

A tool kit of C language functions that can be linked with SIMSCRIPT programs to provide the data communication...  Read More >>

An existing cold jet facility at NASA-Lewis was modified to produce swirling flows with controllable initial tangential...  Read More >>

The potential of two alternative approaches for reducing fan ton noise was investigated in this study. One of these...  Read More >>

As design engineers implement new composite systems such as thick, load bearing composite structures, they must...  Read More >>

This document is a final report on research activities and accomplishments that occurred during the funding period...  Read More >>