Results 21 to 30 of about 12,123,915 (305)

Controllability of convex processes [PDF]

open access: yes1985 24th IEEE Conference on Decision and Control, 1985
The paper provides characterizations of controllability of the differential inclusion x'(t)\(\in A(x(t))\) where A is a convex process from \(R^ n\) into itself. As expected, controllability is equivalent to observability of the associated adjoint inclusion \(-q'(t)\in A^*(x(t))\) where \(A^*\) denotes the transpose of A.
Aubin, J.-P., Frankowska, H., Olech, C.
openaire   +5 more sources

A Supervisor for Control of Mode-switch Process [PDF]

open access: yes, 1994
Many processes operate only around a limited number of operation points. In order to have adequate control around each operation point, and adaptive controller could be used. When the operation point changes often, a large number of parameters would have
Hilhorst, R.A.   +4 more
core   +4 more sources

Fast Multivariate Empirical Mode Decomposition

open access: yesIEEE Access, 2018
The multivariate empirical mode decomposition (MEMD) has been pioneered recently for adaptively processing of multichannel data. Despite its high efficiency on time-frequency analysis of nonlinear and nonstationary signals, high computational load and ...
Xun Lang   +6 more
doaj   +1 more source

CONTROLLING ACTIVATED PROCESSES [PDF]

open access: yesFluctuation and Noise Letters, 2001
The rates of activated processes, such as escape from a metastable state and nucleation, are exponentially sensitive to an externally applied field. We describe how this applies to modulation by high-frequency fields and illustrate it with experimental observations.
Dykman, M. I., Golding, Brage
openaire   +3 more sources

The contribution of quality aspects to process control [PDF]

open access: yes, 1986
Process operators often have difficulties with quality supervision and control for the following reasons: (i) analytical results are infrequent and much delayed, (ii) conventional automatic control cannot sufficiently reduce quality deviations, and (iii)
Rijnsdorp, John E.
core   +2 more sources

Two-Stage Hybrid Model for Efficiency Prediction of Centrifugal Pump

open access: yesSensors, 2022
Accurately predict the efficiency of centrifugal pumps at different rotational speeds is important but still intractable in practice. To enhance the prediction performance, this work proposes a hybrid modeling method by combining both the process data ...
Yi Liu   +3 more
doaj   +1 more source

On the control of attentional processes in vision [PDF]

open access: yesCortex, 2021
The study of attentional processing in vision has a long and deep history. Recently, several papers have presented insightful perspectives into how the coordination of multiple attentional functions in the brain might occur. These begin with experimental observations and the authors propose structures, processes, and computations that might explain ...
John K. Tsotsos   +3 more
openaire   +3 more sources

Research on Fatigue Damage in High-Strength Steel (FV520B) Using Nonlinear Ultrasonic Testing

open access: yesShock and Vibration, 2020
In view of the early fatigue damage of high-strength steel FV520B, a nonlinear ultrasonic detection was performed on two types of fatigue samples using nonlinear Lamb waves.
Bingbing Chen   +4 more
doaj   +1 more source

Short-term memory as a working memory control process [PDF]

open access: yes, 2013
Aben et al. (2012) take issue with the unthoughtful use of the terms “working memory” (WM) and “short-term memory” (STM) in the cognitive and neuroscientific literature.
Davelaar, Eddy J.
core   +2 more sources

An investigation into the thermo-elasto-hydrodynamic effect of notched mechanical seals

open access: yesNuclear Engineering and Technology, 2022
A 3D thermo-elasto-hydrodynamic model is developed to analyze the sealing performance of a notched mechanical seal applied in the reactor coolant pump. In the model, the generalized Reynolds equation, the energy equation coupled with notch heat balance ...
Xiangkai Meng   +3 more
doaj   +1 more source

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