The carotid-cardiac baroreflex contributes to the prediction of orthostatic tolerance; experimental attenuation of the reflex response leads to orthostatic hypotension in humans and animals. Anecdotal observations indicate that rotational head movements about the vertical axis of the body can also induce orthostatic bradycardia and hypotension through increased parasympathetic activity. We ther...

—In this paper an appropriate four rotors helicopter nonlinear dynamic model for identi cation and control law synthesis is obtained via modelization procedure where several phenomena are included like gyroscopic effects and aerodynamic friction. The numerical simulations of the model obtained show that the control law stabilizes the four rotors helicopter with good tracking.

Tire yaw marks deposited on the road surface carry a lot of information paramount importance for analysis vehicle accidents. They can be used: (a) in macro-scale establishing vehicle’s positions and orientation as well an estimation speed at start yawing; (b) micro-scale inferring among others things braking or acceleration status wheels from topology striations forming mark. A mathematical mod...

Multimodal integration allows neural circuits to be activated in a behaviorally context-specific manner. In the case of odor plume tracking by Drosophila, an attractive odorant increases the influence of yaw-optic flow on steering behavior in flight, which enhances visual stability reflexes, resulting in straighter flight trajectories within an odor plume. However, it is not well understood whe...

Inertial angle of attack (AoA) devices currently in use at NASA Langley Research Center (LaRC) are subject to inaccuracies due to centrifugal accelerations caused by model dynamics, also known as “sting whip.” Recent literature suggests that these errors can be as high as 0.25 deg. With the current AoA accuracy target at LaRC being 0.01 deg., there is a dire need for improvement. With other err...

The motion-sensitive horizontal cells in the lobula plate of the fly are assumed to play a key role in the sensory control of yaw torque generated by the flying animal during course-stabilization maneuvers and the fixation of objects. This inference results from comparisons of electrophysiological data obtained from blowflies (Calliphora erythrocephala) and behavioral data obtained mainly from ...