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Outputs (34)

Development of an autonomous unmanned aerial system to collect time-stamped samples from the atmosphere and localize potential pathogen sources (2011)
Journal Article

This paper presents the hardware development and testing of a new concept for air sampling via the integration of a prototype spore trap onboard an unmanned aerial system (UAS). We propose the integration of a prototype spore trap onboard a UAS to al... Read More about Development of an autonomous unmanned aerial system to collect time-stamped samples from the atmosphere and localize potential pathogen sources.

Improved one-dimensional unsteady modeling of thermally choked ram accelerator in subdetonative velocity regime (2011)
Journal Article

The subdetonative propulsion mode using thermal choking has been studied with a one-dimensional (1D) real gas model that included projectile acceleration. Numerical results from a control volume analysis that accounted for unsteady flow effects estab... Read More about Improved one-dimensional unsteady modeling of thermally choked ram accelerator in subdetonative velocity regime.

U-model-based adaptive control for a class of stochastic non-linear dynamic plants with unknown parameters (2011)
Journal Article

In this paper, an adaptive control algorithm within a U-model framework is developed for controlling a class of stochastic non-linear discrete-time models with unknown parameters. With the authors' previous justification, the control-oriented model n... Read More about U-model-based adaptive control for a class of stochastic non-linear dynamic plants with unknown parameters.

Numerical study of gaseous reactive flow over a ram accelerator projectile in subdetonative velocity regime (2011)
Presentation / Conference Contribution

Computational fluid dynamics solutions of the Reynolds Averaged Navier-Stokes equations have been used to numerically predict the thrust of a thermally choked ram accelerator in subdetonative velocity regime. Studies were focused on a projectile oper... Read More about Numerical study of gaseous reactive flow over a ram accelerator projectile in subdetonative velocity regime.

A novel approach to thin-wall machining of aerospace structures- Stability margin prediction using a new damping modelling approach (2011)
Presentation / Conference Contribution

The eco-friendly and economic challenges are driving more and more aerostructure components with thin wall and deep pocket features. These features are getting thinner and deeper and become impractical during part manufacturing. Therefore, there is a... Read More about A novel approach to thin-wall machining of aerospace structures- Stability margin prediction using a new damping modelling approach.

In-cylinder studies of CAI/HCCI combustion with negative valve overlap in a direct injection gasoline optical engine (2011)
Journal Article

The CAI/HCCI combustion was achieved through residual gas trapping using the negative valve overlap method in a direct injection single-cylinder gasoline engine with optical access. Effects of injection timing and spark discharge on the engines perfo... Read More about In-cylinder studies of CAI/HCCI combustion with negative valve overlap in a direct injection gasoline optical engine.