Results 81 to 90 of about 10,176,798 (138)

Relaxation in control systems of fractional semilinear evolution equations

Electronic Journal of Differential Equations, 2014
We consider a control system described by fractional semilinear evolution equations with a mixed multivalued control constraint whose values are nonconvex closed sets.
Xiaoyou Liu, Xi Fu
doaj  

Bifurcation Analysis of a Discrete Logistic System with Additive Allee Effect and Feedback Control

Cauchy: Jurnal Matematika Murni dan Aplikasi
A discrete logistic system with addition Allee effect and feedback control is analyzed in this paper. The results of the analysis show that the model has a trivial fixed point and interior fixed point.
Nadia Agus Hadinata, Agus Suryanto, Wuryansari Muharini Kusumawinahyu   +2 more
doaj   +1 more source

A design approach for feedback-feedforward control systems

, 2009
In this paper, a general design approach is proposed to derive the feedforward control law in feedback-feedforward control systems. This design approach is based on the concept of `control equilibrium point'.
Lei Chen, Fariba Behnia-Willison, Mohammadzaheri, M., Behnia-Willison, F., Chen, L., Aryan, P., Pouria Aryan, Morteza Mohammadzaheri   +7 more
core   +1 more source

First realization of LHW–plasma coupling feedback control for long-pulse operation in EAST

Nuclear Fusion
To sustain good lower hybrid wave (LHW)–plasma coupling for long-pulse plasma operation, for the first time, coupling feedback control is designed and realized in EAST using a proportion integration differentiation method by choosing the reflection ...
B.J. Ding, G.H. Yan, Q.P. Yuan, Y.C. Li, C.B. Wu, J.H. Wu, B. Cao, J.H. Yang, M.H. Li, M. Wang, W.D. Ma, Z.G. Wu, W. Sun, L. Liu, L.M. Zhao, H.C. Hu, J.F. Shan, F.K. Liu, J.P. Qian, X.Z. Gong, the EAST Team   +20 more
doaj   +1 more source

Feedback control of unsupported standing in paraplegia. Part I: optimal control approach [PDF]

, 1997
This is the first of a pair of papers which describe an investigation into the feasibility of providing artificial balance to paraplegics using electrical stimulation of the paralyzed muscles. By bracing the body above the shanks, only stimulation of the
Hunt, K.J., Donaldson, N., Munih, M.
core  

Frequency domain iterative feedforward/feedback tuning for MIMO ANVC

, 2007
A new iterative feedback/feed-forward tuning (IFFT) method is presented for multiple-input multiple-output (MIMO) control systems that relies on efficient computation of the negative gradient of the controller cost function in the frequency domain.
Veres, S.M., Luo, J.
core   +1 more source

Digital control circuitry for the p53 dynamics in cancer cell and apoptosis

Open Life Sciences, 2010
Ardito Marretta Rosario
doaj   +1 more source

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Elastic feedback control

Proceedings 12th Euromicro Conference on Real-Time Systems. Euromicro RTS 2000, 2002
In many real time control applications, the task periods are typically fixed and worst case execution times are used in schedulability analysis. With the advancement of robotics, flexible visual sensing using cameras has become a popular alternative to the use of embedded sensors. Unfortunately, the execution time of visual tracking varies greatly.
Marco Caccamo, BUTTAZZO, Giorgio Carlo, Lui Sha   +2 more
openaire   +2 more sources

Feedback control of canards

Chaos: An Interdisciplinary Journal of Nonlinear Science, 2008
We present a control mechanism for tuning a fast-slow dynamical system undergoing a supercritical Hopf bifurcation to be in the canard regime, the tiny parameter window between small and large periodic behavior. Our control strategy uses continuous feedback control via a slow control variable to cause the system to drift on average toward canard orbits.
Joseph, Durham, Jeff, Moehlis
openaire   +2 more sources

Feedback control of anaesthesia

Current Opinion in Anaesthesiology, 1998
Feedback control of anaesthesia can improve the quality of patient care while reducing the administration and cost of anaesthetic drugs. Systems have been available for several years to control blood pressure and neuromuscular blockade. Control of anaesthetic depth has been reported using the median frequency of the electroencephalogram.
S E, Milne, G N, Kenny
openaire   +2 more sources