643 datasets found
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Federal
Distributed Monitoring of the R2 Statistic for Linear Regression
National Aeronautics and Space Administration —
The problem of monitoring a multivariate linear regression model is relevant in studying the evolving relationship between a set of input variables (features) and one... -
Federal
AePW publications
National Aeronautics and Space Administration —
This will contain publications used by the AePW -
Federal
Recurring Anomaly Detection System (ReADS)
National Aeronautics and Space Administration —
Overview: ReADS can analyze text reports, such as aviation reports and problem or maintenance records. ReADS uses text clustering algorithms to group loosely related... -
Federal
On the Statistics and Predictability of Go-Arounds
National Aeronautics and Space Administration —
This paper takes an empirical approach to identify operational factors at busy airports that may predate go-around maneuvers. Using four years of data from San... -
Federal
Space Shuttle Main Propulsion System Anomaly Detection: A Case Study
National Aeronautics and Space Administration —
The space shuttle main engine (SSME) is part of the Main Propnlsion System (MPS) which is an extremely complex system containing several sub-systems and components,... -
Federal
Enceladus Results
National Aeronautics and Space Administration —
Here are some results from the Spectra Decomposition Algorithm on infrared spectral images of Saturn's moon Enceladus. Figure 1 is the spatial contribution of the 2nd... -
Federal
Classification of Damage Signatures in Composite Plates using On
National Aeronautics and Space Administration —
Damage characterization through wave propagation and scattering is of considerable interest to many non-destructive evaluation techniques. For fiber-reinforced... -
Federal
LUNAR TERRAIN AND ALBEDO RECONSTRUCTION FROM APOLLO IMAGERY
National Aeronautics and Space Administration —
LUNAR TERRAIN AND ALBEDO RECONSTRUCTION FROM APOLLO IMAGERY ARA V NEFIAN, TAEMIN KIM, MICHAEL BROXTON, AND ZACH MORATTO* Abstract.... -
Federal
Privacy Preserving Distributed Data Mining
National Aeronautics and Space Administration —
Distributed data mining from privacy-sensitive multi-party data is likely to play an important role in the next generation of integrated vehicle health monitoring... -
Federal
HIRENASD Experimental Data, Static Cp Plots and Data files
National Aeronautics and Space Administration —
Tecplot (ascii) and matlab files are posted here for the Static pressure coefficient data sets. To download all of the data in either tecplot format or matlab format,... -
Federal
Decadal Variations in NDVI and Food Production in India
National Aeronautics and Space Administration —
In this study we use long-term satellite, climate, and crop observations to document the spatial distribution of the recent stagnation in food grain production... -
Federal
Towards Prognostics for Electronics Components
National Aeronautics and Space Administration —
Electronics components have an increasingly critical role in avionics systems and in the development of future aircraft systems. Prognostics of such components is... -
Federal
Distributed Prognostics System Implementation on Wireless Embedded Devices
National Aeronautics and Space Administration —
Distributed prognostics is the next step in the evolution of prognostic methodologies. It is an important enabling technology for the emerging Condition Based... -
Federal
A knowledge-based system approach for sensor fault modeling, detection and mitigation
National Aeronautics and Space Administration —
Sensors are vital components for control and advanced health management techniques. However, sensors continue to be considered the weak link in many engineering... -
Federal
Comparative Analyses of Operational Flights
National Aeronautics and Space Administration —
This report describes a cooperative experiment conducted by ONERA and NASA, with the support of Airbus S.A.S. and easyJet Airline Company, Ltd. The study evaluated... -
Federal
Prognostics Health Management of Electronic Systems Under Mechanical Shock and Vibration Using Kalman Filter Models and Metrics
National Aeronautics and Space Administration —
Structural damage to ball grid array interconnects incurred during vibration testing has been monitored in the prefailure space using resistance spectroscopy-based... -
Federal
Physics based Degradation Modeling and Prognostics of Electrolytic Capacitors under Electrical Overstress Conditions
National Aeronautics and Space Administration —
This paper proposes a physics based degradation modeling and prognostics approach for electrolytic capacitors. Electrolytic capacitors are critical components in... -
Federal
Propulsion Health Monitoring of a Turbine Engine Disk using Spin Test Data
National Aeronautics and Space Administration —
On line detection techniques to monitor the health of rotating engine components are becoming increasingly attractive options to aircraft engine companies in order to... -
Federal
Prognostics in Battery Health Management
National Aeronautics and Space Administration —
Batteries represent complex systems whose internal state vari- ables are either inaccessible to sensors or hard to measure un- der operational conditions. This work... -
Federal
A multi-feature integration method for fatigue crack detection and crack length estimation in riveted lap joints using Lamb waves
National Aeronautics and Space Administration —
This paper presents an experimental study of damage detection and quantification in riveted lap joints. Embedded lead zirconate titanate piezoelectric (PZT) ceramic...
643 datasets found