This study aims to demonstrate how compute the damping coefficient of a continuously variable damper for semi-active preview control suspensions while considering sprung-mass jerk and controller’s performance advantage. Optimal theory is used derive validate proposed approach future road disturbances. Despite reduced body acceleration, with display an increase in jerk, implying that ride comfor...

Vagal reflexes from the heart and lungs elicit autonomic as well as somatomotor responses. The purpose of the present investigation was to determine whether the inflammatory mediator thromboxane A2 inhibits the knee-jerk reflex via a vagally mediated reflex from either the heart or the lung. The thromboxane A2 mimetic U-46619 (0.8 ± 0.08 μg/kg) was injected through a catheter placed near the ri...

The aim of this paper is to introduce and investigate chaotic and hyperchaotic complex jerk equations. The jerk equations describe various phenomena in engineering and physics, for example, electrical circuits, laser physics, mechanical oscillators, damped harmonic oscillators, and biological systems. Properties of these systems are studied and their Lyapunov exponents are calculated. The dynam...

We investigated the nystagmus of a 12-year-old boy with suspected X-linked congenital nystagmus (CN) and exophoria to determine the underlying mechanisms and component signals in the 'dual-velocity' and other slow phases of his Asymmetric (a)Periodic Alternating Nystagmus (APAN). Fast Fourier transforms (FFT) were performed on the waveforms and residual data after subtracting a sawtooth wavefor...

The ability to maintain the body relative to the external environment is important for adaptation to altered gravity. However, the physiological limits for adaptation or the disruption of body orientation are not known. In this study, we analyzed postural changes in mice upon exposure to various low gravities. Male C57BL6/J mice (n = 6) were exposed to various gravity-deceleration conditions by...

An optimal and smooth trajectory for industrial robots has a positive impact on reducing the execution time in an operation vibration their joints. In this paper, methodology time-optimal jerk-continuous planning of is proposed. The entire interpolated joint space utilizing fifth-order B-splines then optimized by hybrid whale optimization algorithm genetic (WOA-GA). Two objective functions, inc...

Industrial robots are predominately used in point-to-point applications such as machine loading and unloading and spot welding. A smooth and time-optimal trajectory of robot is essential for precise handling applications. Lot of jerk-limited motion profiles are proposed in the literature and are classified under two approaches. In the first approach, the motion profiles are generated using pred...

Recently we developed an analog model to simulate Alexander's law in nystagmus secondary to dysfunction of a semicircular canal. Alexander's law is based on the observation that the amplitude of the nystagmus grows with increasing gaze in the direction of the fast phase and diminishes with gaze in the opposite direction. To investigate the assumptions made in the model, we conducted quantitativ...

The study of eye movements and oculomotor disorders has, for four decades, greatly benefitted from the application of control theoretic concepts. This paper is an example of a complementary approach based on the theory of nonlinear dynamical systems. Recently, a nonlinear dynamics model of the saccadic system was developed, comprising a symmetric piecewise-smooth system of six first-order auton...