643 datasets found

AADL and Error Annex models of SAFEbus, SPIDER, TTP and BRAIN

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This paper proposes a recursive receding horizon path planning algorithm for unmanned vehicles in nonuniform environments. In the proposed algorithm, the map is described by...

The ability to utilize prognostic system health information in operational decision making, especially when fused with information about future operational, environmental, and...

This is the code for fast discriminative latent Dirichlet allocation, which is an algorithm for topic modeling and text classification. The related paper is at http://www-...

Distributed prognostics architecture design is an enabling step for efficient implementation of health management systems. A major challenge encountered in such design is...

The world-wide aviation system is one of the most complex dynamical systems ever developed and is generating data at an extremely rapid rate. Most modern commercial aircraft...

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In previous papers, we introduced the idea of a Virtual Sensor, which is a mathematical model trained to learn the potentially nonlinear relationships between spectra for a...

Smart lighting systems in low energy commercial buildings can be expensive to implement and commission. Studies have also shown that only 50% of these systems are used after...

A COMPARATIVE STUDY OF ALGORITHMS FOR LAND COVER CHANGE SHYAM BORIAH, VARUN MITHAL, ASHISH GARG, VIPIN KUMAR, MICHAEL STEINBACH, CHRIS POTTER, AND STEVE KLOOSTER** Abstract....

This paper demonstrates a novel optimizationbased approach to estimating fault states in a DC power system. The model includes faults changing the circuit topology along with...

Few human endeavors present as much of a planning and scheduling challenge as space flight, particularly manned space flight. Just on the operational side of it, efforts of...

This paper introduces a generic distributed prognostic health management (PHM) architecture with specific application to the electrical power systems domain. Current state-of-...

In performance maintenance in large, complex systems, sensor information from sub-components tends to be readily available, and can be used to make predictions about the...

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Confirmed Speakers from the United States Ashok N. Srivastava, NASA Ames Research Center Robert Mah, NASA Ames Research Center Gary Hunter, NASA Glenn Research Center Nagi...

Jam fault scenarios with tensile (-40 lbs) load (diagnostic and prognostic).

UNDERSTANDING SEVERE WEATHER PROCESSES THROUGH SPATIOTEMPORAL RELATIONAL RANDOM FORESTS AMY MCGOVERN, TIMOTHY SUPINIE, DAVID JOHN GAGNE II, NATHANIEL TROUTMAN, MATTHEW COLLIER,...

We calculate photometric redshifts from the Sloan Digital Sky Survey Main Galaxy Sample, The Galaxy Evolution Explorer All Sky Survey, and The Two Micron All Sky Survey using...