To overcome sluggish load disturbance response for industrial/chemical processes with slow time constant(s), an improved design for on-line autotuning of proportional-integral-derivative (PID) controller is proposed in this paper, based on relay identification of the widely used first-order-plus-deadtime (FOPDT) process model. Using the fitting conditions established for process response at the...

We present multiwavelength observations of a large-amplitude oscillation of a polar crown filament on 15 October 2002, which has been reported by Isobe and Tripathi (Astron. Astrophys. 449, L17, 2006). The oscillation occurred during the slow rise (≈ 1 km s) of the filament. It completed three cycles before sudden acceleration and eruption. The oscillation and following eruption were clearly se...

This article starts with a brief review of the thalamocortical system architecture, which is composed of the projecting thalamic nuclei, the thalamic reticular nucleus, and the neocortex. Then we provide a description of the three states of vigilances followed by a detailed review of major brain rhythms present in the thalamocortical system, ranging from very slow to very fast oscillations. We ...

Title: 1 A comparison of sleep-like slow oscillations in the hippocampus under ketamine and urethane 2 anaesthesia. 3 4 Abbreviated Title: 5 Hippocampal slow oscillation under ketamine 6 7 Authors: 8 Sharma, A.V.; Wolansky, T.; Dickson, C.T. 2, 3 9 1 Department of Psychology, University of Alberta, Edmonton, Alberta, Canada 10 Centre for Neuroscience, University of Alberta, Edmonton, Alberta, C...

Hansen AK, Nedergaard S, Andreasen M. Intrinsic Ca -dependent theta oscillations in apical dendrites of hippocampal CA1 pyramidal cells in vitro. J Neurophysiol 112: 631–643, 2014. First published May 14, 2014; doi:10.1152/jn.00753.2013.—Behavior-associated theta-frequency oscillation in the hippocampal network involves a patterned activation of place cells in the CA1, which can be accounted fo...

Blood pressure contains a distinct low-frequency oscillation often termed the Mayer wave. This oscillation is caused by the action of the sympathetic nervous system on the vasculature and results from time delays in the baroreflex feedback loop for the control of sympathetic nerve activity (SNA) in response to changes in blood pressure. In this study, we used bilateral renal denervation to test...