Results 121 to 130 of about 474,978 (288)

On the no-gravity limit of gravity [PDF]

open access: yesarXiv, 2012
We argue that Relative Locality may arise in the no gravity $G\rightarrow0$ limit of gravity. In this limit gravity becomes a topological field theory of the BF type that, after coupling to particles, may effectively deform its dynamics. We briefly discuss another no gravity limit with a self dual ground state as well as the topological ultra strong $G\
arxiv  

Scaling exponents in quantum gravity near two dimensions [PDF]

open access: green, 1993
H. Kawai   +2 more
openalex   +1 more source

Bioinspired Moisture‐Driven Soft Robotic Actuator

open access: yesAdvanced Intelligent Systems, EarlyView.
In response to the evolving field of robotics, the demand for soft actuator materials has surged, prompting a shift toward biomimetic models, notably plant‐based actuators. The Arundo donax species exemplifies a unique hinged single‐unit actuation system and a combined mechanism utilizing atmospheric water content, offering multifunctional capabilities.
Akshay Balachandran   +5 more
wiley   +1 more source

Scalar-tensor quantum gravity in two dimensions [PDF]

open access: green, 1992
Jorge G. Russo, A.A. Tseytlin
openalex   +1 more source

Sensorless Human–Robot Interaction: Real‐Time Estimation of Co‐Grasped Object Mass and Human Wrench for Compliant Interaction

open access: yesAdvanced Intelligent Systems, EarlyView.
To tackle the challenge of parameter estimation in dynamic human–robot interaction, this research proposes a novel method that integrates a disturbance observer with Kalman filtering. In contrast to conventional techniques, this approach facilitates the simultaneous real‐time estimation of human wrench and object parameters, offering significantly ...
Minghao Bai   +5 more
wiley   +1 more source

On the equivalence of topological and quantum 2D gravity [PDF]

open access: green, 1992
A. Marshakov   +2 more
openalex   +1 more source

A Novel Parameter Estimation Method for Pneumatic Soft Hand Control Applying Logarithmic Decrement for Pseudo‐Rigid Body Modeling

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
In this research, a paradigm of parameter estimation method for pneumatic soft hand control is proposed. The method includes the following: 1) sampling harmonic damping waves, 2) applying pseudo‐rigid body modeling and the logarithmic decrement method, and 3) deriving position and force control.
Haiyun Zhang   +4 more
wiley   +1 more source

Semiclassical limits of simplicial quantum gravity [PDF]

open access: green, 1994
John W. Barrett, Timothy J. Foxon
openalex   +1 more source

Single‐Pump‐Actuated Transformable Dual‐Mode Gripper Based on Bistable and Origami Structures for Cross‐Scale Object Grasping

open access: yesAdvanced Intelligent Systems, EarlyView.
Single‐pump‐actuated transformable dual‐mode gripper (SATDG) that combines vacuum suction and granular jamming to effectively grasp objects ranging from 10 to 300 mm in size, spanning a vast 30‐fold range, with forces from 0.5 to 21 N, is studied. Using a bistable mechanism and origami structure, the SATDG can transform between two modes and activate ...
Tianle Pan   +7 more
wiley   +1 more source

Generation of Electric Current by Magnetic Field at the Boundary: Quantum Scale Anomaly Versus Semiclassical Meissner Current Outside of the Conformal Limit

open access: yesAdvanced Physics Research, EarlyView., 2023
The paper discusses the role of scale anomaly in generating edge electric currents via the scale magnetic effect in scalar electrodynamics. Although the boundary electric current is much weaker than the Meissner current induced in superconducting materials, the scale anomaly can enhance conductivity near the boundary of the material.
Maxim Chernodub   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy