2018 (vol. 28) - Number 1

*I. Duleba, I. Karcz-Duleba:*

A comparison of methods solving repeatable inverse kinematics for robot manipulators

*A. Niederliński:*

A new approach for modelling uncertainty in expert systems knowledge bases

*T.T. Tuan, L.D. Tufa, M.I.A. Mutalib, N.M. Ramli :*

Optimal operation of a process by integrating dynamic economic optimization and model predictive control formulated with empirical model

*M. Kaleta:*

Network winner determination problem

*A. Kowalewski:*

Extremal problems for parabolic systems with time-varying lags

*T. Rybus, K. Seweryn, J.Z. S±siadek:*

Application of predictive control for manipulator mounted on a satellite

*T. Kaczorek:*

Reachability and observability of positive discrete-time linear systems with integer positive and negative powers of the state Frobenius matrices

*G. Grassi, A. Ouannas, V-T. Pham:*

A general unified approach to chaos synchronization in~continuous-time systems (with or without equilibrium points) as well as in discrete-time systems

*D. Pazderski:*

A robust smooth controller for a unicycle-like robot

ACS Abstract:

**2008 (Volume 18)**

Number 1

**Supervised multiple model adaptive control of a heating fan**

J.M. Lemos(INESC-ID/IST, Lisboa, Portugal) | L. Marreiros(INESC-ID/IST, Lisboa, Portugal) | B. Costa(INESC-ID/IST, Lisboa, Portugal) |

**keywords:** adaptive control, switched control, distributed parameter, thermal processes

**A new stopping criterion for iterative solvers for control optimal problems**

K. Krumbiegel(University Duisburg-Essen, Duisburg, Germany) | A. Rosch(University Duisburg-Essen, Duisburg, Germany) |

**keywords:** linear quadratic optimal control problems, control constraints, error estimates, projected gradient method, primal-dual active set strategy, penalty methods, stopping criteria

**Realization problem for fractional continuous-time systems**

T. Kaczorek(Bialystok Technical University, Bialystok, Poland) |

**keywords:** fractional, positive, realization, continuous-time linear system

**Towards robust minimum variance control of nonsquare LTI MIMO systems**

W.P. Hunek(Opole University of Technology, Opole, Poland) |

**keywords:** robust minimum variance control, nonsquare systems, inverses of polynomial matrices, transmission zeros, control zeros, minimum energy

**Robust stability of systems with parametric uncertainty**

R. Matusu(Tomas Bata University in Zlin, Czech Republic) | R. Prokop(Tomas Bata University in Zlin, Czech Republic) |

**keywords:** robust control, interval uncertainty, Kharitonov theorem, zero exclusion condition, polynomial toolbox

**A comparative study on estimation techniques with applications to power signal frequency**

A.M. Panda(Department of Electrical Engineering, NIT Rourkela-769008, Orissa, India) | S.R. Mohanty(Department of Electrical Engineering, NIT Rourkela-769008, Orissa, India) | P.K. Ray(Department of Electrical Engineering, NIT Rourkela-769008, Orissa, India) | B. Subudhi(Department of Electrical Engineering, NIT Rourkela-769008, Orissa, India) |

**keywords:** extended least square (ELS) technique, Kalman filter, least mean square (LMS) technique, power system parameters

**Robust nonlinear PI for attitude stabilization of a four-rotor mini-aircraft: From theory to experiment**

M. Bouchoucha(LCC, Ecole Militaire Polytechnique, Algerie) | M. Tadjine(LCP, Ecole Nationale Polytechnique, Algerie) | A. Tayebi(ACL, Lakehead University, Thunder Bay, Canada) | P. Mullhaupt(ACL, Ecole Polytechnique Federale de Lausanne, Switzerland) | S. Bouabdallah(ASL, Swiss Federal Institute of Technology, Switzerland) |

**keywords:** attitude stabilization, backstepping, Euler angles parametrization, nonlinear robust PI, quadrotor

**Positive fractional discrete-time Lyapunov systems**

P. Przyborowski(Warsaw University of Technology, Warsaw, Poland) |

**keywords:** fractional, positive, discrete-time, Lyapunov system, stability, controllability to zero, reachability

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