Results 61 to 70 of about 781,590 (289)
Nonreciprocal Swarmalators With Reconfigurable and Controllable Formations for Robot Collectives
Advanced Robotics Research, EarlyView.Nonreciprocal swarmalator interactions are enabled through control barrier functions to transform self‐organizing robot collectives into reconfigurable, constraint‐aware systems. Complex two‐ and three‐dimensional shapes, continuous morphing, obstacle‐aware navigation, collective splitting, and object transport emerge from modulating agent‐level ...
Kush Patel +3 more
wiley +1 more source
M-step preconditioned conjugate gradient methods [PDF]
, 1983 Preconditioned conjugate gradient methods for solving sparse symmetric and positive finite systems of linear equations are described. Necessary and sufficient conditions are given for when these preconditioners can be used and an analysis of their ...
Adams, L.
core
A Whole‐Head Finite Element Model for Electrical Neuromodulation via Visual Brain‐Machine Interfaces
Advanced Science, EarlyView.A multimodal, personalized head model is presented that integrates the entire visual pathway with surrounding tissues to simulate electrical stimulation of the optic nerve. In vivo validation in humans and goats, plus systematic component‐elimination analysis, demonstrates the high accuracy of the comprehensive model.
Shengjian Lu +12 more
wiley +1 more source
Mechanical Flexibility Enables DNA Origami to Overcome Steric Confinement in Mucus
Advanced Science, EarlyView.Mechanical flexibility is introduced as a design parameter to enhance nanocarrier transport in mucus. Using DNA origami, flexibility is decoupled from size, shap and surface chemistry, revealing improved passage through confined hydrogel networks. While surface passivation reduces aggregation, flexibility further boosts transport, offering a general ...
Matteo Tollemeto +5 more
wiley +1 more source
Diagonal preconditioned conjugate gradient algorithm for unconstrained optimization [PDF]
, 2014 The nonlinear conjugate gradient (CG) methods have widely been used in solving unconstrained optimization problems. They are well-suited for large-scale optimization problems due to their low memory requirements and least computational costs.
Ng, Choong Boon +2 more
core +2 more sources
Nuclear Engineering and Technology, 2020 A diffusion synthetic acceleration (DSA) technique for the SN transport equation discretized with the linear discontinuous expansion method with subcell balance (LDEM-SCB) on unstructured tetrahedral meshes is presented.
Habib Muhammad, Ser Gi Hong
doaj +1 more source
Advanced Science, EarlyView.We developed an ultrasound‐controlled biomimetic nanoplatform, mRNA/V@M NPs, to co‐deliver CD74 mRNA and V‐9302 for fibrotic TNBC therapy. CD74 mRNA reprograms myCAFs into antigen‐presenting apCAF cells through the CD74‐MHC II pathway, while V‐9302 induces ICD and activates MHC I‐CD8+ T cell immunity.
Chen Ai +9 more
wiley +1 more source
Preconditioning the modified conjugate gradient method
Global Journal of Mathematical Sciences, 2010 In this paper, the convergence analysis of the conventional conjugate Gradient method was reviewed. And the convergence analysis of the modified conjugate Gradient method was analysed with our extension on preconditioning the algorithm. Convergence of the algorithm is a function of the condition number of M-1A.
Omorogbe, D.E.A, Osagiede, A.A
openaire +3 more sources
Modelling and Simulation in Engineering, 2019 Critical comments on the complexity of computational systems and the basic singularly perturbed (SP) concepts are given. A class of several complex SP nonlinear elliptic equations arising in various branches of science, technology, and engineering is ...
Anastasia-Dimitra Lipitakis
doaj +1 more source
, 1993 This paper studies the solution of symmetric positive definite Toeplitz linear systems Ax = b by the preconditioned conjugate gradient method. The preconditioners P are chosen to be circulant matrices and, thus, the Fast Fourier Transform can be ...
Trunkhill, William D.
core +1 more source