Results 291 to 300 of about 128,433 (326)
A Cascade PID Controller Design with Cuckoo Optimization Algorithm (COA) and Input Shaping (IS)
Büşra Yalçıner Durukan +2 more
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Prestige at Play: University Hierarchies and the Reproduction of Funding Inequalities
Canadian Review of Sociology/Revue canadienne de sociologie, EarlyView.ABSTRACT This article examines the relationship between university prestige, disciplinary cultures, and the (re)production of funding inequalities in the humanities and social sciences. We combine qualitative and quantitative methods by analyzing: (1) data on 56,680 successful and unsuccessful grant applications submitted to the Canadian Social ...
Julien Larregue, Alice Pavie
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Cancer Science, EarlyView.Eighteen‐week treatment with microtubule inhibitors induces resistance to osimertinib in EGFR‐mutated NSCLC cells. Vinorelbine‐ and paclitaxel‐resistant cells showed activation of FZD7 and CaMKII and increased sensitivity to CaMKII inhibition, with additive or synergistic effects when combined with osimertinib.
Kento Kono +5 more
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On a Modification of the PID Controller
Dynamics and Control, 1997The paper considers the controlled system \[ x^{(n)}+ a_nx^{(n-1)}+ \cdots + a_2x' +a_1x =u(t) \] and the finite-memory controller \[ u= -c_1 \bigl(x(t) -x_d(t)\bigr)-c_2 \bigl(x'(t) -x_d'(t) \bigr)- c_3\int^t_{t- \sigma} \bigl(x (\tau)- x_d(\tau) \bigr)d \tau \] \(x_d(t)\) being the reference signal. This controller is shown to have several advantages
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Annual Reviews in Control, 2000
Abstract The history of pneumatic PID controllers covering the invention of the flapper-nozzle amplifier, the addition of negative feed back to the amplifier and the incorporation of rest (integral) and pre-act (derivative) actions is described. The transition of the controller from a special purpose unit to a robust, reliable, widely used unit; the ...
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Abstract The history of pneumatic PID controllers covering the invention of the flapper-nozzle amplifier, the addition of negative feed back to the amplifier and the incorporation of rest (integral) and pre-act (derivative) actions is described. The transition of the controller from a special purpose unit to a robust, reliable, widely used unit; the ...
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ISA Transactions, 2007
In this paper, an index for measuring fragility of proportional integral derivative (PID) controllers is proposed. This index relates the losses of robustness of the control loop when controller parameters change, to the nominal robustness of the control loop. Furthermore, it defines when a PID controller is fragile, nonfragile or resilient.
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In this paper, an index for measuring fragility of proportional integral derivative (PID) controllers is proposed. This index relates the losses of robustness of the control loop when controller parameters change, to the nominal robustness of the control loop. Furthermore, it defines when a PID controller is fragile, nonfragile or resilient.
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An Expert Adaptive PID Controller
IFAC Proceedings Volumes, 1990Abstract An architecture for expert adaptive PID control is outlined which has properties associated with model-based adaptive PID controllers incorporating a knowledge-base and adaptive controllers employing pattern recognition techniques. Descriptions of the structure of the “RAPID” system, the algorithms and the rule based techniques are provided.
S. Thompson, E.G. McCluskey
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A noncausal approach for PID control
Journal of Process Control, 2006A new approach for the improvement of the set-point following performances achieved by a PID controller is presented. Basically, it consists of applying a suitable command signal to the closed-loop control system in order to achieve a desired transient response when the process output is required to assume a new value. This command signal is determined
PIAZZI A, VISIOLI, Antonio
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Comparative Study on Fuzzy PID Controller and Conventional PID Controller
Applied Mechanics and Materials, 2013PID controller is simple, stable and reliable. But the controller parameters cannot adjust themselves when the object varies. To solve the problem, this paper combined fuzzy control and PID controller, realized self-adjustment of PID parameters using fuzzy reasoning method, analysed the advantages over the traditional PID controller. The simulation was
Huan Xin Cheng +2 more
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A Method of PID Controller Autotuning
IFAC Proceedings Volumes, 1997A method of PID controller autotuning based on relay feedback control is described. Special attention is paid to the process structure and parameters estimation in the phase of reaching the desired operating point. This may increase the method"s robustness and also speed up the tuning procedure.
Branica, Ivan +2 more
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