Results 51 to 60 of about 2,175,657 (265)
Distributed model-free formation control of networked fully-actuated autonomous surface vehicles
Frontiers in Neurorobotics, 2022 This paper presents a distributed constant bearing guidance and model-free disturbance rejection control method for formation tracking of autonomous surface vehicles subject to fully unknown kinetic model.
Xiaobing Niu +3 more
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Complete Model-Free Siding Mode Control (CMFSMC) [PDF]
Scientific Reports, 2021 Abstract This study presents a Complete Model-Free Sliding Mode Control (CMFSMC) framework for the control of continuous-time nonaffine nonlinear dynamic systems with unknown models. The novelty lies in the introduction of two equalities to assign the derivative of the sliding functions, which generally bridges the designs of those model-based ...
openaire +3 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Purpose Despite 5‐year survival rates of over 90% among children and adolescents/young adults (CAYAs) with classic Hodgkin lymphoma (cHL), 15%–20% relapse after frontline therapy. Prior analysis of frontline Children's Oncology Group (COG) clinical trials demonstrated that, despite similar rates of relapse, non‐Hispanic Black (NHB) and ...
Mallorie B. Heneghan +14 more
wiley +1 more source
A Model-Free Online Learning Control for Attitude Tracking of Quadrotors
Applied SciencesThis paper investigates the problem of attitude tracking in quadrotor unmanned aerial vehicles (UAVs) using a model-free online learning control (MFOLC) scheme.
Lining Tan +3 more
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Model-Independent Observer-Based Current Sensorless Speed Servo Systems with Adaptive Feedback Gain
Actuators, 2022 This study proposes a solution to the speed control problem of servo machines in the form of multi-loop current sensorless control with a reduction in the system model dependence level and the number of feedback loops, which provides the two ...
Sun Lim, Seok-Kyoon Kim, Ki-Chan Kim
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Value constrained model-free continuous control
CoRR, 2019 The naive application of Reinforcement Learning algorithms to continuous control problems -- such as locomotion and manipulation -- often results in policies which rely on high-amplitude, high-frequency control signals, known colloquially as bang-bang control.
Steven Bohez +5 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Introduction Anthracycline‐related cardiac remodeling precedes heart failure in childhood cancer survivors. The objectives of this study were to determine the relationships between patient‐specific factors, moderate‐to‐vigorous physical activity (MVPA), and cardiac remodeling.
Hari K. Narayan +15 more
wiley +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Neurotoxicity is a rare, often dose‐limiting adverse effect of methotrexate (MTX) therapy that disproportionally affects Latino children. Factors contributing to the observed disparity are not well understood. This study leveraged admixture mapping to identify genetic regions associated with MTX‐related neurotoxicity susceptibility ...
Rachel D. Harris +24 more
wiley +1 more source
Fractal and FractionalThe effective operation of model-based control strategies in modern energy systems, characterized by significant complexity, is contingent upon highly accurate large-scale models.
Arman Fathollahi, Björn Andresen
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Learning Output Reference Model Tracking for Higher-Order Nonlinear Systems with Unknown Dynamics
Algorithms, 2019 Linearly and nonlinearly parameterized approximate dynamic programming approaches used for output reference model (ORM) tracking control are proposed. The ORM tracking problem is of significant interest in practice since, with a linear ORM, the closed ...
Mircea-Bogdan Radac, Timotei Lala
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