Results 121 to 130 of about 4,274 (296)
Flows around moving bodies using a dynamic unstructured overset-grid method
, 2010 Akay, Hasan U/0000-0003-2574-9942In this article, a computational fluid dynamics algorithm is presented for simulations of complex unsteady flows around rigid moving bodies using an unstructured overset-grid method.
Resat U. Payli +7 more
core +1 more source
Fluid-structure interaction modelling of a positive-displacement Total Artificial Heart. [PDF]
Sci Rep, 2023 Bornoff J +7 more
europepmc +1 more source
Advanced Intelligent Systems, EarlyView.Hardware‐learning co‐design combines volar‐plate‐inspired passive‐joint constraints with mechanism‐aware reinforcement learning for a low‐cost parallel‐linkage gripper. The resulting system performs quasi‐static object adjustment and dynamic pinch grasping, demonstrating reliable planar in‐hand manipulation and successful sim‐to‐real transfer. Parallel
Yanzhou Jin +4 more
wiley +1 more source
Advanced Intelligent Systems, EarlyView.Origami turns a single silicone chamber into three different soft fluidic actuators. Crease angles alone decide whether it elongates, bends, or twists, and the fully folded chambers are cast monolithically in one day. Below 15 kPa, they reach 268% axial stretch, 72° bending, and 55° twist—no strain‐limiting layers, no rigid reinforcements, no vacuum ...
Alexia Le Gall +4 more
wiley +1 more source
Path integral of free fields and the determinant of Laplacian in warped space-time
Journal of High Energy PhysicsWe revisit the problem of computing the determinant of Klein-Gordon operator ∆ = −∇2 + M 2 on Euclideanized AdS 3 with the Euclideanized time coordinate compactified with period β, H 3/Z, by explicitly computing its eigenvalues and computing their ...
Soumangsu Chakraborty +2 more
doaj +1 more source
Graph Neural Network‐Based Reinforcement Learning for Decentralized Multi‐Robot Manipulation
Advanced Intelligent Systems, EarlyView.Robot arms lifting a large object face a trade‐off: centralized controllers explode in parameters, while decentralized ones cannot coordinate. A GNN resolves this—each arm runs its own network but acts on the full team state, achieving centralized‐level coordination with decentralized execution. Trained across team sizes, a single policy scales to four‐
Tong Chen +3 more
wiley +1 more source
3D Closed‐Loop Navigation of Magnetic Microswimmers Using Vision‐Derived Depth Feedback
Advanced Intelligent Systems, EarlyView.A planar magnetic microswimmer is navigated in three dimensions under a standard microscope. Image defocus supplies a real‐time depth cue, and model‐predictive control with A* planning steers the body on surfaces and in free swimming. Axial position is regulated by propulsion alone, without magnetic field gradients or extra cameras.
Yasin Cagatay Duygu +2 more
wiley +1 more source
Parallel Implementation of a Dynamic Overset Unstructured Grid Approach
, 2004 This paper describes the parallelization of a dynamic overset grid approach with predefined holes. The algorithm has been designed for massive parallel applications.
Madrane, A., Stürmer, A., Raichle, A.
core
Compliant Footpads Enable Terrain‐Adaptive Hopping in a Monopedal Robot
Advanced Intelligent Systems, EarlyView.A lightweight compliant footpad with embedded spines lets a monopedal hopping robot keep stable ground contact. It preserves stance‐phase dynamics and enables reliable hopping on rock, sand, and ice. Monopedal hopping robots offer exceptional mobility over discontinuous terrain but require consistent foot‐ground contact to maintain stance‐phase ...
Jeeraphat Owen Kledkruemas +3 more
wiley +1 more source