Decentralized control of input-output stochastic models

2005 ◽  
pp. 276-283
Author(s):  
E. P. Melo ◽  
J. C. Geromel
Keyword(s):  
Decentralized Control ◽  
Stochastic Models ◽  
Input Output

scholarly journals Multichannel FES parameterization for controlling foot motion in paretic gait

2015 ◽  
Vol 1 (1) ◽  
pp. 480-483 ◽  
Author(s):  
Thomas Seel ◽  
Mirjana Ruppel ◽  
Markus Valtin ◽  
Thomas Schauer
Keyword(s):  
Electrical Stimulation ◽  
Decentralized Control ◽  
Neurological Disorders ◽  
Piecewise Linear ◽  
Swing Phase ◽  
Drop Foot ◽  
Input Output ◽  
Surface Electrodes ◽  
Foot Motion ◽  
Output Behavior

AbstractStroke and other neurological disorders often lead to reduced motor function and to pathological foot motion during gait. We consider Functional Electrical Stimulation (FES) of the shank muscles that control dorsiflexion (related to pitch) and eversion (related to roll) of the foot. We describe the nonlinear domain of stimulation intensities that are tolerated by subjects in combined two-channel FES via surface electrodes. Two piecewise linear parameterizations of this domain are suggested and compared in terms of the cross-couplings between the newly defined stimulation intensity coordinates and the foot motion caused during swing phase in drop foot patients walking on a treadmill. Both parameterizations are found to yield almost monotonous input-output behavior and therefore facilitate decentralized control of the foot pitch and roll angle.

scholarly journals Non-abelian Weyl commutation relations and the series product of quantum stochastic evolutions

2012 ◽  
Vol 370 (1979) ◽  
pp. 5437-5451 ◽  
Author(s):  
D. Gwion Evans ◽  
John E. Gough ◽  
Matthew R. James
Keyword(s):  
Heisenberg Group ◽  
Commutation Relation ◽  
Stochastic Models ◽  
General Rule ◽  
Product Formula ◽  
Input Output ◽  
Trotter Product Formula ◽  
Commutation Relations ◽  
Series Product ◽  
Weyl Commutation Relation

We show that the series product, which serves as an algebraic rule for connecting state-based input–output systems, is intimately related to the Heisenberg group and the canonical commutation relations. The series product for quantum stochastic models then corresponds to a non-abelian generalization of the Weyl commutation relation. We show that the series product gives the general rule for combining the generators of quantum stochastic evolutions using a Lie–Trotter product formula.

Input-Output in Personnel Management

1970 ◽  
Vol 15 (2) ◽  
pp. 115, 118
Author(s):  
WILLIAM E. COLEMAN
Keyword(s):  
Personnel Management ◽  
Input Output
Sign in / Sign up

Export Citation Format

Share Document