The Naval Health Research Center Respiratory Disease Laboratory

Naval Health Research Center Rapid Identification and Strain-typing of Respiratory Pathogens for Epidemic Surveillance

Naval Underwater Sound Laboratory Naval Submarine Medical Center

The reception of speech transmitted through an acoustic channel such as the ocean is limited by multipath "time-smearing." The purpose of this study was to obtain a quantitative measure of the effects of such timesmearing on speech intelligibility. A linear, time-invariant channel was used as a model of the ocean. The impulse response of this channel was a sample of band-limited Gaussian noise....

Naval Aerospace Medical Research Laboratory

It is important to resolve the issue of whether extra infonnation can help assign the probability for failure of a pilot or Naval Flight Officer (NFO) in some phase of flight training. This assigned probability for failure could be based simply on empirical data gathered over some relatively long period of time. However, if scores from selection tests, personality tests, vision exams, psychomot...

Naval Submarine Medical Research Laboratory

Operating in a dangerously sensor-limited closed environment, submarine sonar operators are plagued by primitive sensory interfaces inherited from earlier hardware designs. The inefficient match to the operator’s perceptual capability is exacerbated as submarines increasingly operate in the littoral where, at now reduced ranges from quieter threat targets, detection requires immediate action fo...

Naval Health Research Center Running Economy: Comparing Alternative Measurement Models