Results 31 to 40 of about 9,714,861 (297)

Maximally Robust Controllers for Multivariable Systems [PDF]

SIAM Journal on Control and Optimization, 2000
The set of all optimal controllers which maximize a robust stability radius for unstructured additive perturbations may be obtained using standard Hankel-norm approximation methods. These controllers guarantee robust stability for all perturbations which lie inside an open ball in the uncertainty space (say, of radius r
Gungah, SK, Halikias, GD, Jaimoukha, IM
openaire   +5 more sources

Nonlinear Identification for Control by Using NARMAX Models

Mathematics
The identification (and control) of nonlinear systems is one of the most important and actual research directions. Moreover, many systems are multivariable.
Dan Stefanoiu, Janetta Culita, Andreea-Cristina Voinea, Vasilica Voinea   +3 more
doaj   +1 more source

Predictive control of multivariable time-delay systems

MATEC Web of Conferences, 2017
In technical practice often occur multivariable processes with time delay. Time-delays are mainly caused by the time required to transport mass, energy or information, but they can also be caused by processing time or accumulation.
Marek Kubalcik, Vladimir Bobal
doaj   +1 more source

Recursive Algorithms for Multivariable Output-Error-Like ARMA Systems

Mathematics, 2019
This paper studies the parameter identification problems for multivariable output-error-like systems with colored noises. Based on the hierarchical identification principle, the original system is decomposed into several subsystems.
Hao Ma, Jian Pan, Lei Lv, Guanghui Xu, Feng Ding, Ahmed Alsaedi, Tasawar Hayat   +6 more
doaj   +1 more source

Phase Transition of Multivariate Polynomial Systems [PDF]

Mathematical Structures in Computer Science, 2007
A random multivariate polynomial system with more equations than variables is likely to be unsolvable. On the other hand, if there are more variables than equations, the system has at least one solution with high probability. In this paper we study in detail the phase transition between these two regimes, which occurs when the number of equations ...
Giordano Fusco, Eric Bach 0001
openaire   +3 more sources

Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine, Hallie Coltin, Sylvia Cheng, Lucie Lafay‐Cousin, Vanan Issai Magimairajan, Craig Erker, Stéphanie Vairy, Lynette Bowes, Adam Fleming, Donna Johnston, Sarah McKillop, Roona Sinha, Julie Bennett, Christina Coleman, Laura Wheaton, Shayna Zelcer, Samuele Renzi, Thai Hoa Tran   +17 more
wiley   +1 more source

Real-Time Experimental Benchmarking of Control Strategies for a Coupled 2-DOF Helicopter

Eng
This paper presents a real-time experimental comparison of four control strategies—PID, Fractional-Order PID (FOPID), Fuzzy PID/PD, and Model-Free Control (MFC)—applied to trajectory tracking of a coupled 2-DOF Quanser Aero 2 helicopter.
Johny Iza, Emilio Paredes, Marco Herrera, Diego Benítez, Noel Pérez-Pérez, Oscar Camacho   +5 more
doaj   +1 more source

Retrospective Analysis of Donor Lymphocyte Infusions in Pediatric Patients With Mixed Chimerism After Hematopoietic Stem Cell Transplantation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Allogeneic hematopoietic stem cell transplantation (alloHSCT) is an essential therapy for several malignant and nonmalignant diseases, but relapse and graft loss remain the principal threats to its success. Routine monitoring of chimerism and minimal residual disease (MRD) enables early detection of imminent recurrence and guides ...
Carmen Junk, Sebastian Michaelis, Michaela Döring, Thomas Eichholz, Ursula Holzer, Martin Ebinger, Tim Flaadt, Rupert Handgretinger, Peter Lang, Jan Frederic Weller, Markus Mezger   +10 more
wiley   +1 more source

Optimal Control of Nonlinear Multivariable Systems [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2009
This paper concerns a study on the optimal control for nonlinear systems. An appropriate alternative in order to alleviate the nonlinearity of a system is the exact linearization approach.
Ali Qajar, Ramin Bozorgmehry Boozarjomehry,   +1 more
doaj  

Analytical Multiloop Control for Multivariable Systems with Time Delays

Complexity, 2020
In this paper, a new design method with performance improvements of multiloop controllers for multivariable systems is proposed. Precise expression is developed to show the relationship between the dynamic- and steady-state characteristics of the ...
Zhiguo Wang, Peng Wei
doaj   +1 more source