643 datasets found
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Federal
Airborne Electro-Mechanical Actuator Test Stand for Development of Prognostic Health Management Systems
National Aeronautics and Space Administration —
With the advent of the next generation of aerospace systems equipped with fly-by-wire controls, electro- mechanical actuators (EMA) are quickly becoming components... -
Federal
Methods for Probabilistic Fault Diagnosis: An EPS Case Study
National Aeronautics and Space Administration —
Health management systems that more accurately and quickly diagnose faults that may occur in different technical systems on-board a vehicle will play a key role in... -
Federal
Topic Modeling for OLAP on Multidimensional Text Databases: Topic Cube and its Applications
National Aeronautics and Space Administration —
As the amount of textual information grows explosively in various kinds of business systems, it becomes more and more desirable to analyze both structured data... -
Federal
KEYWORD SEARCH IN TEXT CUBE: FINDING TOP-K RELEVANT CELLS
National Aeronautics and Space Administration —
KEYWORD SEARCH IN TEXT CUBE: FINDING TOP-K RELEVANT CELLS BOLIN DING, YINTAO YU, BO ZHAO, CINDY XIDE LIN, JIAWEI HAN, AND CHENGXIANG ZHAI... -
Federal
Prognostics Design Solutions in Structural Health Monitoring Systems
National Aeronautics and Space Administration —
The chapter describes the application of prognostic techniques to the domain of structural health and demonstrates the efficacy of the methods using fatigue data from... -
Federal
Discriminative Mixed-Membership Models
National Aeronautics and Space Administration —
Although mixed-membership models have achieved great success in unsupervised learning, they have not been widely applied to classification problems. In this paper, we... -
Federal
Fault Adaptive Control of Overactuated Systems Using Prognostic Estimation
National Aeronautics and Space Administration —
Most fault adaptive control research addresses the preservation of system stability or functionality in the presence of a specific failure (fault). This paper... -
Federal
Fuzzy Spatiotemporal Data Mining to Activity Recognition in Smart Homes
National Aeronautics and Space Administration —
A primary goal to design smart homes is to provide automatic assistance for the residents to make them able to live independently at home. Activity recognition is... -
Federal
Local L2 Thresholding Based Data Mining in Peer-to-Peer Systems
National Aeronautics and Space Administration —
In a large network of computers, wireless sensors, or mobile devices, each of the components (hence, peers) has some data about the global status of the system. Many... -
Federal
CIDU 2010 Student Travel Award
National Aeronautics and Space Administration —
CIDU 2010 Student Travel Award Application Form -
Federal
Addressing the Real-World Challenges in the Development of Propulsion IVHM Technology Experiment (PITEX)
National Aeronautics and Space Administration —
The Propulsion IVHM Technology Experiment (PITEX) has been an on-going research effort conducted over several years. PITEX has developed and applied a model-based... -
Federal
A Generic Local Algorithm for Mining Data Streams in Large Distributed Systems
National Aeronautics and Space Administration —
In a large network of computers or wireless sensors, each of the components (henceforth, peers) has some data about the global state of the system. Much of the... -
Federal
Prognostic Techniques for Capacitor Degradation and Health Monitoring
National Aeronautics and Space Administration —
This paper discusses our initial efforts in constructing physics of failure models for electrolytic capacitors subjected to electrical stressors in DC-DC power... -
Federal
Modeling, Detection, and Disambiguation of Sensor Faults for Aerospace Applications
National Aeronautics and Space Administration —
Sensor faults continue to be a major hurdle for sys- tems health management to reach its full potential. At the same time, few recorded instances of sensor faults... -
Federal
DIAGNOSTIC/PROGNOSTIC EXPERIMENTS FOR CAPACITOR DEGRADATION AND HEALTH MONITORING IN DC-DC CONVERTERS
National Aeronautics and Space Administration —
Studying and analyzing the ageing mechanisms of electronic components avionics in systems such as the GPS and INAV are of critical importance. In DC-DC power... -
Federal
ROC Curve Code Augmentation
National Aeronautics and Space Administration —
Please find a detailed description here: ROC Curve Code Augmentation -
Federal
A Model-Based Prognostics Approach Applied to Pneumatic Valves
National Aeronautics and Space Administration —
Within the area of systems health management, the task of prognostics centers on predicting when components will fail. Model-based prognostics exploits domain... -
Federal
Autonomous Decision Making for Planetary Rovers Using Diagnostic and Prognostic Information
National Aeronautics and Space Administration —
Rover missions typically involve visiting a set of predetermined waypoints to perform science functions, such as sample collection. Given the communication delay... -
Federal
Physics Based Electrolytic Capacitor Degradation Models for Prognostic Studies under Thermal Overstress
National Aeronautics and Space Administration —
Electrolytic capacitors are used in several applications rang- ing from power supplies on safety critical avionics equipment to power drivers for electro-mechanical...
643 datasets found