Results 141 to 150 of about 23,787 (311)
Deep Learning Spinfoam Vertex Amplitudes: The Euclidean Barrett–Crane Model
UniverseSpinfoam theories propose a well-defined path-integral formulation for quantum gravity, and it is hoped that they will provide the dynamics of loop quantum gravity. However, it is computationally hard to calculate spinfoam amplitudes.
Hanno Sahlmann, Waleed Sherif
doaj +1 more source
Planning and Control Framework for a Quadruped Robot With Changeable Configuration
Advanced Intelligent Systems, EarlyView.Multiconfiguration quadruped robots enhance adaptability by switching between mammal‐like and reptile‐like morphologies. This study presents a nonlinear constraint‐based motion planner integrated with a hierarchical whole‐body controller, enabling robust configuration switching and locomotion on complex terrains. Experiments on slopes, irregular bricks,
Guanglin Lu +5 more
wiley +1 more source
Non-simple conformal loop ensembles on Liouville quantum gravity and the law of CLE percolation interfaces. [PDF]
Probab Theory Relat Fields, 2021 Miller J, Sheffield S, Werner W.
europepmc +1 more source
BeeRootBot: A Bioinspired Robotic Probe Exhibiting Apical Growth through In Situ Soil Binding
Advanced Intelligent Systems, EarlyView.This study introduces a novel method for consolidating subterranean exploration pathways in plant‐inspired robots by binding in‐situ soil with beeswax, a biobased material. This simultaneous advancement and wall‐lining process reduces penetration resistance, enhances exploration efficiency, enables communication and resource sharing, and promotes ...
Sachin Sachin +4 more
wiley +1 more source
Advanced Intelligent Systems, EarlyView.This paper presents a degeneracy‐aware light detection and ranging (LiDAR)‐inertial framework that enhances LiDAR simultaneous localization and mapping performance in challenging environments. The proposed system integrates a dual‐layer robust odometry frontend with a Scan‐Context‐based loop‐closure detection backend.
Haoming Yang +4 more
wiley +1 more source
Lecture notes on Gaussian multiplicative chaos and Liouville Quantum Gravity [PDF]
, 2016 Rémi Rhodes, Vincent Vargas
openalex +1 more source
Advanced Intelligent Systems, EarlyView.This work presents a tip‐growing eversion robot that uses phase‐changing alloys for reversible stiffening and localized actuation, achieving 43× stiffness modulation, 15× force amplification, and segmental steering. The system enables precise navigation and force delivery in constrained, tortuous pathways.
Shamsa Al Harthy +4 more
wiley +1 more source
Quantum Field Theory of Black Hole Perturbations with Backreaction: I General Framework
UniverseIn a seminal work, Hawking showed that natural states for free quantum matter fields on classical spacetimes that solve the spherically symmetric vacuum Einstein equations are KMS states of non-vanishing temperature.
Thomas Thiemann
doaj +1 more source
A Multimode Soft Robot Based on a Single Braided Tube
Advanced Intelligent Systems, EarlyView.This study introduces a novel soft multimode robot based on a single braided tube directly formed and actuated by SMA wires with distinct initial configurations. By combining contraction, elongation, and bending deformations, the robot achieves straight crawling, turning, inchworm crawling, and rolling without additional actuators.
Zhenhao Jia, Jiayao Ma, Yan Chen
wiley +1 more source