33 datasets found for "Employment Projections"
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Federal
Prognostics Of Power Mosfets Under Thermal Stress Accelerated Aging Using Data-Driven And Model-Based Methodologies
National Aeronautics and Space Administration —
An approach for predicting remaining useful life of power MOSFETs (metal oxide field effect transistor) devices has been developed. Power MOSFETs are semiconductor... -
Federal
Temperature Stratification in a Cryogenic Fuel Tank
National Aeronautics and Space Administration —
A reduced dynamical model describing temperature stratification effects driven by natural convection in a liquid hydrogen cryogenic fuel tank has been developed. It... -
Federal
Entropy-based probabilistic fatigue damage prognosis and algorithmic performance comparison
National Aeronautics and Space Administration —
In this paper, a maximum entropy-based general framework for probabilistic fatigue damage prognosis is investigated. The proposed methodology is based on an... -
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... -
Federal
Formal Specification and Verification of a Coordination Protocol for an Automated Air Traffic Control System
National Aeronautics and Space Administration —
We detail all of the facets of adapting classical model checking to a real aerospace system, in- cluding deriving the formal model and a set of specifications from... -
Federal
Prognostics of Power MOSFETs under Thermal Stress Accelerated Aging using Data-Driven and Model-Based Methodologies
National Aeronautics and Space Administration —
An approach for predicting remaining useful life of power MOSFETs (metal oxide field effect transistor) devices has been developed. Power MOSFETs are semiconductor... -
Federal
Dynamical Model of Rocket Propellant Loading with Liquid Hydrogen
National Aeronautics and Space Administration —
A dynamical model describing the multi-stage process of rocket propellant loading has been developed. It accounts for both the nominal and faulty regimes of cryogenic... -
Federal
Fault Tolerance, Diagnostics, and Prognostics in Aircraft Flight
National Aeronautics and Space Administration —
Abstract In modern fighter aircraft with statically unstable airframe designs, the flight control system is considered flight critical, i.e. the aircraft will... -
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
General Purpose Data-Driven System Monitoring for Space Operations
National Aeronautics and Space Administration —
Modern space propulsion and exploration system designs are becoming increasingly sophisticated and complex. Determining the health state of these systems using... -
Federal
Pilot Study of a Plug Load Management System: Preparing for Sustainability Base
National Aeronautics and Space Administration —
NASA Ames Research Center’s Sustainability Base is a new 50,000 sq. ft. high-performance office building targeting a LEED Platinum rating. Plug loads are expected to... -
Federal
A Comparison of Three Data-driven Techniques for Prognostics
National Aeronautics and Space Administration —
In situations where the cost/benefit analysis of using physics-based damage propagation algorithms is not favorable and when sufficient test data are available that... -
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
Prognostics for Ground Support Systems: Case Study on Pneumatic Valves
National Aeronautics and Space Administration —
Prognostics technologies determine the health (or damage) state of a component or sub- system, and make end of life (EOL) and remaining useful life (RUL) predictions.... -
Federal
Physics of Failure Models for Capacitor Degradation in DC-DC Converters
National Aeronautics and Space Administration —
This paper proposes a combined energy-based model with an empirical physics of failure model for degradation analysis and prognosis of electrolytic capacitors in DC-... -
Federal
A Recursive Receding Horizon Planning for Unmanned Vehicles
National Aeronautics and Space Administration —
This paper proposes a recursive receding horizon path planning algorithm for unmanned vehicles in nonuniform environments. In the proposed algorithm, the map is... -
Federal
Towards Requirements in Systems Engineering for Aerospace IVHM Design
National Aeronautics and Space Administration —
Health management (HM) technologies have been employed for safety critical system for decades, but a coherent systematic process to integrate HM into the system... -
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
A Reasoning Architecture for Expert Troubleshooting of Complex Processes
National Aeronautics and Space Administration —
This paper introduces a novel reasoning methodology, in combination with appropriate models and measurements (data) to perform accurately and expeditiously expert...
33 datasets found for "Employment Projections"