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Unattended camera devices are increasingly being used in various intelligent transportation systems (ITS) for applications such as surveillance, toll collection, and photo enforcement. In these fielded systems, a variety of factors can cause camera obstructions and persistent view changes that may adversely affect their performance. Examples include camera misalignment, intentional blockage resulting...
Automated, unattended camera systems used for various transportation applications such as toll collection and photo enforcement need to capture high quality images in a variety of outdoor scenarios. In particular, they need to remain functional in low ambient illumination conditions (nighttime and cloudy day situations) to enable identification of objects or persons involved in incidents being monitored...
Wheelhead spindle deflection of a precision internal plunge grinder offers a measure of dynamic forces at the wheel to workpiece interface. Because of the relatively small wheel mass and spindle diameter, the spring coefficient (pounds/inch) of an internal grinding spindle is relatively low and may be used as an indicator of the forces involved in the grinding zone. This paper discusses one means...
Spike activity has a much wider energy spectrum than does postsynaptic activity. Under the assumption that the frequency spectrum of spike activity ranges from dc to 1000 Hz, the prediction was made that high-frequency electrical activity could be modulated by sensory stimulation and might well be detectable at the human scalp. This prediction was borne out in experiments that were successful in detecting...
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