SEARCH · Engineering Papers
Results for “Visual abstraction”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Stereo and IMU Assisted Visual Odometry on an OMAP3530 for Small Robots
No abstract available
Modeling and Simulation of Visual Impairment and Intracranial Pressure (VIIP) in Space
No abstract available
Science Data Visualization in AR/VR for Planetary and Earth Science
No abstract available
Mid-Air Range-Visual-Inertial Estimator Initialization for Micro Air Vehicles
No abstract provided
Integration of visual and motion cues for simulator requirements and ride quality investigation
Preliminary tests and evaluation are presented of pilot performance during landing (flight paths) using computer generated images (video tapes). Psychophysiological factors affecting pilot visual perception were measured. A turning flight maneuver (pitch and roll) was specifically studied using a training device, and the scaling laws involved were determined. Also presented are medical studies (abstracts) on human response to gravity variations without visual cues, acceleration stimuli effects on the semicircular canals, and neurons affecting eye movements, and vestibular tests.
Comparison of pitch rate history effects on dynamic stall
Dynamic stall of an airfoil is a classic case of forced unsteady separated flow. Flow separation is brought about by large incidences introduced by the large amplitude unsteady pitching motion of an airfoil. One of the parameters that affects the dynamic stall process is the history of the unsteady motion. In addition, the problem is complicated by the effects of compressibility that rapidly appear over the airfoil even at low Mach numbers at moderately high angles of attack. Consequently, it is of interest to know the effects of pitch rate history on the dynamic stall process. This abstract compares the results of a flow visualization study of the problem with two different pitch rate histories, namely, oscillating airfoil motion and a linear change in the angle of attack due to a transient pitching motion.
Visual search and attention: a signal detection theory approach
No abstract available
Real-Time Data Management and Visualization for Geostationary Lightning Mapper (GLM) in ArcGIS Platform
No abstract available
ATS displays: A reasoning visualization tool for expert systems
Reasoning visualization is a useful tool that can help users better understand the inherently non-sequential logic of an expert system. While this is desirable in most all expert system applications, it is especially so for such critical systems as those destined for space-based operations. A hierarchical view of the expert system reasoning process and some characteristics of these various levels is presented. Also presented are Abstract Time Slice (ATS) displays, a tool to visualize the plethora of interrelated information available at the host inferencing language level of reasoning. The usefulness of this tool is illustrated with some examples from a prototype potable water expert system for possible use aboard Space Station Freedom.
Multi-mission Simulation and Visualization for Real-time Telemetry Display, Playback and EDL Event Reconstruction
No abstract available
Sensory processing delays measured with the eye-movement correlogram
No abstract available
Monitoring Critical Infrastructure with Radar Remote Sensing: A Case Study of the Howard A. Hanson Dam and the Sacramento Delta Levees
No abstract available
Direct Visualization of Nucleus Structure and Nucleation Pathways in Apoferritin Crystallization
No abstract available
The Visual Impairment Intracranial Pressure Syndrome in Long Duration U.S. Astronants
No abstract available
Python-Based Scientific Analysis and Visualization of Precipitation Systems at NASA Marshall Space Flight Center
No abstract available
Visual Impairment Intracranial Pressure (VIIP) [aka Microgravity Ocular Syndrome (MOS)]
No abstract available