2018 (vol. 28) - Number 4

*T. Kaczorek:*

A new method for computation of positive realizations of fractional linear continuous-time systems

*A. Biswas, A. Sarkar:*

Development of dual hesitant fuzzy prioritized operators based on Einstein operations with their application to multi-criteria group decision making

*L. Li, R. Zhang, J. Wang, X. Shang:*

Some q-orthopair linguistic Heronian mean operators with their application to multi-attribute group decision making

*J. Duda:*

Lyapunov matrices approach to the parametric optimization of a system with two delays and a PD controller

*M. Lhous, M. Rachik, El M. Magri:*

Ideal observability for bilinear discrete-time systems with and without delays in observation

*P.T. Anh, A. Babiarz, A. Czornik, M. Niezabitowski:*

Variation of constant formulas for fractional difference equations

*K. Bingi, R. Ibrahim, M. Noh Karsiti, S. Miya Hassan, V. Rajah Harindran:*

A comparative study of 2DOF PID and 2DOF fractional order PID controllers on a class of unstable systems

ACS Abstract:

**2008 (Volume 18)**

Number 4

**Structural decomposition of transfer matrix of positive normal hybrid systems**

Tadeusz Kaczorek(Faculty of Electrical Engineering, Białystok Technical University, Białystok, Poland) |

**keywords:** normal rational matrix, structural decomposition, linear, hybrid system

**Optimization of fuzzy PID controllers using Q-learning algorithm**

Hamid Boubertakh, Salim Labiod(LAMEL, Faculte des Sciences de l'Ingnieur, University of Jijel, Jijel, Algeria) | Mohamed Tadjine(LCP, Departement de Genie Electrique, Ecole Nationale Polytechnique, Alger, Algeria) | Pierre-Yves Glorennec(INSA de Rennes, Departement of Informatics, Rennes, France) |

**keywords:** fuzzy PID controllers, classical PID controllers, Takagi-Sugeno fuzzy systems, Q-learning

**Zeros and the output-zeroing problem in linear fractional-order systems**

Jerzy Tokarzewski(Warsaw University of Technology, Warsaw, Poland) |

**keywords:** fractional order linear systems, invariant zeros, output-zeroing problem

**Contribution to variable structure control based on the approach of fuzzy modeling of Ben-Ghalia for induction motor with Luenberger observer**

L. Barazane(Faculty of Electronic and Computing, University of Science and Technology Houari Boumediene (USTHB), Alger, Algerie) | A. Khwaldeh(Department of Computer Science Faculty of Engineering, Philadelphia University, Jordan) | M.M. Krishan(Department of Engineering of Information and Measurement Systems, Al-Balq'a Applied University, Jordan) | P. Sicard(Groupe de Recherche en Elecronique Industrielle, Universite du Quebec a Trois-Rivieres, Canada) |

**keywords:** feedback linearization control, sliding mode control, Luenberger observer, induction motor, cascade structure, fuzzy modeling control, fuzzy sliding mode control

Selecting genetic algorithms for assembler encoding

Tomasz Praczyk(Naval University, Gdynia, Poland) |

**keywords:** evolutionary neural networks, genetic algorithms, grasping

**Enslavement and control in dq synchronous frame for a cascade using multilevel inverter NPC**

F. Bouchafaa, D. Beriber(Laboratory of Instrumentation and Engineering System, University of Science and Technology Houari Boumediene, Algiers, Algeria) | M.S. Boucherit, E.M. Berkouk(Laboratory of Process Control, Department Electrical Engineering, Polytechnic National School Algiers, Algiers, Algeria) |

**keywords:** NPC inverter, clamping bridge, rectifier multilevel, PWM strategy, regulation current, enslavement

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