Results 81 to 90 of about 83,401 (261)

Bayesian Optimisation for the Experimental Sciences: A Practical Guide to Data‐Efficient Optimisation of Laboratory Workflows

open access: yesAdvanced Intelligent Systems, EarlyView.
This study provides an introduction to Bayesian optimisation targeted for experimentalists. It explains core concepts, surrogate modelling, and acquisition strategies, and addresses common real‐world challenges such as noise, constraints, mixed variables, scalability, and automation.
Chuan He   +2 more
wiley   +1 more source

Enabling Stochastic Dynamic Games for Robotic Swarms

open access: yesAdvanced Intelligent Systems, EarlyView.
This paper scales stochastic dynamic games to large swarms of robots through selective agent modeling and variable partial belief space planning. We formulate these games using a belief space variant of iterative Linear Quadratic Gaussian (iLQG). We scale to teams of 50 agents through selective modeling based on the estimated influence of agents ...
Kamran Vakil, Alyssa Pierson
wiley   +1 more source

Bifurcation and Numerical Simulations of Ca2+ Oscillatory Behavior in Astrocytes

open access: yesFrontiers in Physics, 2020
In this paper, the dynamical analysis of Ca2+ oscillations in astrocytes is theoretically investigated by the center manifold theorem and the stability theory of equilibrium point.
Hongkun Zuo, Min Ye
doaj   +1 more source

On Lorentz dynamics : From group actions to warped products via homogeneous spaces [PDF]

open access: yes, 2004
We show a geometric rigidity of isometric actions of non compact (semisimple) Lie groups on Lorentz manifolds. Namely, we show that the manifold has a warped product structure of a Lorentz manifold with constant curvature by a Riemannian ...
Arouche, Abdelouahab   +2 more
core   +2 more sources

A Flexible and Energy‐Efficient Compute‐in‐Memory Accelerator for Kolmogorov–Arnold Networks

open access: yesAdvanced Intelligent Systems, EarlyView.
This article presents KA‐CIM, a compute‐in‐memory accelerator for Kolmogorov–Arnold Networks (KANs). It enables flexible and efficient computation of arbitrary nonlinear functions through cross‐layer co‐optimization from algorithm to device. KA‐CIM surpasses CPU, ASIC, VMM‐CIM, and prior KAN accelerators by 1–3 orders of magnitude in energy‐delay ...
Chirag Sudarshan   +6 more
wiley   +1 more source

Bifurcation Analysis in a Kind of Fourth-Order Delay Differential Equation

open access: yesDiscrete Dynamics in Nature and Society, 2009
A kind of fourth-order delay differential equation is considered. Firstly, the linear stability is investigated by analyzing the associated characteristic equation.
Xiaoqian Cui, Junjie Wei
doaj   +1 more source

Dynamics of a delayed worm propagation model with quarantine

open access: yesAdvances in Difference Equations, 2017
A delayed SEIQRS-V model with quarantine describing the dynamics of worm propagation is considered in the present paper. Local stability of the endemic equilibrium is addressed and the existence of a Hopf bifurcation at the endemic equilibrium is ...
Zizhen Zhang, Limin Song
doaj   +1 more source

“It Is Much Safer to Be Sparse than Connected”: Safe Control of Robotic Swarm Density Dynamics with PDE Optimization with State Constraints

open access: yesAdvanced Intelligent Systems, EarlyView.
This paper proposes a novel control framework to ensure safety of a robotic swarm. A feedback optimization controller is capable of driving the swarm toward a target density while keeping risk‐zone exposure below a safety threshold. Theory and experiments show how safety is more effectively achieved for sparsely connected swarms.
Longchen Niu, Gennaro Notomista
wiley   +1 more source

Persistence of traveling wave solutions in a bio-reactor model with strong generic delay kernels and nonlocal effect

open access: yesElectronic Journal of Differential Equations, 2013
In this article, we consider the persistence of nontrivial traveling wave solutions of a bio-reactor system with strong generic delay kernels and nonlocal effect, which models the microbial growth in a flow reactor.
Nai-Wei Liu, Ting-Ting Kong
doaj  

Principle of linearized stability and smooth center manifold theorem for semilinear hyperbolic systems

open access: yes, 2006
We prove principle of linearized stability and smooth center manifold theorem for a general class of semilinear hyperbolic systems $mathrm(SH)$ in one space dimension, which are of the following form: For $0 < x < l$ and $t > 0$ $$ mathrm(SH) left beginarrayl partial over partial t beginpmatrix u(t,x) v(t,x) endpmatrix + K(x) partial over ...
openaire   +2 more sources

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