Results 61 to 70 of about 27,971 (292)

Active vibration control of vehicle suspension systems using sliding modes, differential flatness and generalized proportional-integral control

Revista Facultad de Ingeniería Universidad de Antioquia, 2012
This paper presents a design approach of robust active vibration control schemes for vehicle suspension systems using differential flatness, sliding modes and Generalized Proportional-Integral control techniques to attenuate undesirable vibrations ...
Esteban Chávez Conde, Francisco Beltrán Carbajal, Antonio Valderrábano González, Antonio Favela Contreras   +3 more
doaj   +1 more source

Geometry and flatness of m-crane systems [PDF]

Bulletin of the Polish Academy of Sciences: Technical Sciences, 2019
We propose a class of m-crane control systems, that generalizes two- and three-dimensional crane systems. We prove that each representant of the described class is feedback equivalent to the second order chained form with drift.
M. Nowicki, W. Respondek, J. Piasek, K. Kozłowski   +3 more
doaj   +1 more source

Perception-aware time optimal path parameterization for quadrotors

, 2020
The increasing popularity of quadrotors has given rise to a class of predominantly vision-driven vehicles. This paper addresses the problem of perception-aware time optimal path parametrization for quadrotors.
Karaman, Sertac, Murali, Varun, Spasojevic, Igor   +2 more
core   +1 more source

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

Molecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla, Christopher Dirks, Caroline Eiden, Sonja K. Fesenmayer, Femke M. Hormann, Yolande Klootsema, Ingrid Lilienthal, Si Min Zhang, Nikolas Herold, Sean G. Rudd   +9 more
wiley   +1 more source

An Optimal Integrated Control Scheme for Permanent Magnet Synchronous Generator-Based Wind Turbines under Asymmetrical Grid Fault Conditions

Energies, 2016
In recent years, the increasing penetration level of wind energy into power systems has brought new issues and challenges. One of the main concerns is the issue of dynamic response capability during outer disturbance conditions, especially the fault ...
Dan Wang, Chongru Liu, Gengyin Li
doaj   +1 more source

Flatness‐based control for steam‐turbine power generation units using a disturbance observer

IET Electric Power Applications, 2021
Steam‐turbine power plants still supply a significant part of the electric power consumed worldwide. The viability of steam turbine power units depends on their efficiency to a great extent and the control method applied to the them is of major ...
Gerasimos Rigatos, Nikolaos Zervos, Pierluigi Siano, Patrice Wira, Masoud Abbaszadeh   +4 more
doaj   +1 more source

Hippo pathway at the crossroads of stemness and therapeutic resistance in breast cancer

Molecular Oncology, EarlyView.
Dysregulation of the Hippo pathway drives nuclear accumulation of YAP/TAZ, activating stemness‐related transcriptional programs that sustain breast cancer stemness and fuel therapeutic resistance across subtypes, underscoring Hippo signaling as a targetable vulnerability. Figure created and edited with BioRender.com.
Giulia Schiavoni, Antonella Palmese, Stefano Scalera, Laura Cipriani, Davide Mascolo, Patrizia Vici, Teresa Arcuri, Lorena Filomeno, Eriseld Krasniqi, Giovanni Blandino, Giulia Bon, Marcello Maugeri‐Saccà   +11 more
wiley   +1 more source

Quadcopter Trajectory Tracking Control Based on Flatness Model Predictive Control and Neural Network

Actuators
In this paper, a novel control architecture is proposed in which FMPC couples feedback from model predictive control with feedforward linearization. The proposed approach has the computational advantage of only requiring a convex quadratic program to be ...
Yong Li, Qidan Zhu, Ahsan Elahi
doaj   +1 more source

Computationally Efficient Trajectory Optimization for Linear Control Systems with Input and State Constraints

, 2012
This paper presents a trajectory generation method that optimizes a quadratic cost functional with respect to linear system dynamics and to linear input and state constraints.
Kennel, Ralph, Stumper, Jean-Francois
core   +1 more source

Optimal control of differentially flat systems is surprisingly easy

Automatica
As we move to increasingly complex cyber-physical systems (CPS), new approaches are needed to plan efficient state trajectories in real-time. In this paper, we propose an approach to significantly reduce the complexity of solving optimal control problems for a class of CPS with nonlinear dynamics.
Beaver, Logan E., Malikopoulos, Andreas A.   +1 more
openaire   +3 more sources