AIMC Topic: Computer Simulation

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Volume-preserving geometric shape optimization of the Dirichlet energy using variational neural networks.

Neural networks : the official journal of the International Neural Network Society Nov 30, 2024
In this work, we explore the numerical solution of geometric shape optimization problems using neural network-based approaches. This involves minimizing a numerical criterion that includes solving a partial differential equation with respect to a dom...
Computer Simulation Neural Networks, Computer Algorithms
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Delayed-feedback oscillators replicate the dynamics of multiplex networks: Wavefront propagation and stochastic resonance.

Neural networks : the official journal of the International Neural Network Society Nov 30, 2024
The widespread development and use of neural networks have significantly enriched a wide range of computer algorithms and promise higher speed at lower cost. However, the imitation of neural networks by means of modern computing substrates is highly ...
Algorithms Computer Simulation Feedback Time Factors Neural Networks, Computer Stochastic Processes
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Barrier function-based prescribed performance trajectory tracking control of wheelchair upper-limb exoskeleton robot under actuator fault and external disturbance: Experimental verification.

ISA transactions Nov 30, 2024
This paper presents an innovative control strategy for the trajectory tracking of wheelchair upper-limb exoskeleton robots, integrating sliding mode control with a barrier function-based prescribed performance approach to handle actuator faults and e...
Wheelchairs Algorithms Humans Computer Simulation Exoskeleton Device Robotics Upper Extremity Equipment Design
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Denoising low-field MR images with a deep learning algorithm based on simulated data from easily accessible open-source software.

Journal of magnetic resonance (San Diego, Calif. : 1997) Nov 29, 2024
In this study, we introduce a denoising method aimed at improving the contrast ratio in low-field MRI (LFMRI) using an advanced 3D deep convolutional residual network model. Our approach employs synthetic brain imaging datasets that closely mimic the...
Signal-To-Noise Ratio Image Processing, Computer-Assisted Magnetic Resonance Imaging Software Humans Computer Simulation Brain Algorithms Deep Learning
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Robust parameter estimation and identifiability analysis with hybrid neural ordinary differential equations in computational biology.

NPJ systems biology and applications Nov 29, 2024
Parameter estimation is one of the central challenges in computational biology. In this paper, we present an approach to estimate model parameters and assess their identifiability in cases where only partial knowledge of the system structure is avail...
Humans Neural Networks, Computer Computational Biology Algorithms Computer Simulation
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Analysis and actuation design of a novel at-scale 3-DOF biomimetic flapping-wing mechanism inspired by flying insects.

Bioinspiration & biomimetics Nov 29, 2024
Insects' flight is imbued with endless mysteries, offering valuable inspiration to the flapping-wing robots. Particularly, the multi-mode wingbeat motion such as flapping, sweeping and twisting in coordination presents advantages in promoting unstead...
Equipment Design Models, Biological Animals Robotics Biomimetic Materials Flight, Animal Computer Simulation Wings, Animal Biomechanical Phenomena Biomimetics Insecta
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Event-based adaptive fixed-time optimal control for saturated fault-tolerant nonlinear multiagent systems via reinforcement learning algorithm.

Neural networks : the official journal of the International Neural Network Society Nov 28, 2024
This article investigates the problem of adaptive fixed-time optimal consensus tracking control for nonlinear multiagent systems (MASs) affected by actuator faults and input saturation. To achieve optimal control, reinforcement learning (RL) algorith...
Time Factors Nonlinear Dynamics Reinforcement, Psychology Algorithms Computer Simulation Neural Networks, Computer
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Estimating global phase synchronization by quantifying multivariate mutual information and detecting network structure.

Neural networks : the official journal of the International Neural Network Society Nov 28, 2024
In neuroscience, phase synchronization (PS) is a crucial mechanism that facilitates information processing and transmission between different brain regions. Specifically, global phase synchronization (GPS) characterizes the degree of PS among multiva...
Cortical Synchronization Electroencephalography Phase Synchronization Electroencephalography Multivariate Analysis Epilepsy, Temporal Lobe Nerve Net Computer Simulation Models, Neurological Algorithms Brain Humans Neural Networks, Computer
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CMINNs: Compartment model informed neural networks - Unlocking drug dynamics.

Computers in biology and medicine Nov 28, 2024
In the field of pharmacokinetics and pharmacodynamics (PKPD) modeling, which plays a pivotal role in the drug development process, traditional models frequently encounter difficulties in fully encapsulating the complexities of drug absorption, distri...
Humans Neural Networks, Computer Models, Biological Computer Simulation Antineoplastic Agents
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Static pinning synchronization control of self-triggered coupling dynamical networks.

Neural networks : the official journal of the International Neural Network Society Nov 27, 2024
In this paper, a new static pinning intermittent control based on resource awareness triggering is proposed. A multi-layer control technique is used to synchronize the coupled neural network. First, a hierarchical network structure including pinned a...
Algorithms Computer Simulation Nonlinear Dynamics Neural Networks, Computer
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