Results 81 to 90 of about 1,984,506 (249)
Elastic–Plastic Modeling and Experimental Characterization of Granular Jamming Actuators
Advanced Engineering Materials, EarlyView.Granular jamming enables rapid switching between soft and rigid mechanical states. Here, a reduced‐order elastic‐perfectly‐plastic beam framework captures pressure‐dependent loading, unloading, residual deformation, and hysteresis in jammed beams, while matching three‐point bending experiments across materials and geometries. The framework links design
Saheli Patel +2 more
wiley +1 more source
Earthquakes as Probing Tools for Gravity Theories
UniverseWe propose a novel method for testing gravity models using seismic waves’ velocities. By imposing observational constraints on Earth’s moment of inertia and mass, we rigorously limit the gravitational models’ parameters within a 2σ accuracy.
Aleksander Kozak, Aneta Wojnar
doaj +1 more source
Modified Gravity and the origin of inertia [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2009 Abstract Modified gravity theory is known to violate Birkhoff's theorem. We explore a key consequence of this violation, the effect of distant matter in the Universe on the motion of test particles. We find that when a particle is accelerated, a force is experienced that is proportional to the particle's mass and acceleration and acts in
Moffat, J. W., Toth, V. T.
openaire +2 more sources
Introduction to modified gravity
, 2021 In this paper we give an overview of the evolution of homogeneous and isotropic subspaces in modified multidimensional gravity.27 ...
Popov Arkadiy Aleksandrovich
core
Advances in Sustainable and Wearable Textile Based Soft Robotics
Advanced Functional Materials, EarlyView.This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas +6 more
wiley +1 more source
Consistent modified gravity: dark energy, acceleration and the absence of cosmic doomsday
, 2005 We discuss modified gravity which includes negative and positive powers of curvature and provides gravitational dark energy. It is shown that in GR plus a term containing a negative power of curvature, cosmic speed-up may be achieved while the effective ...
Abdalla, MCB +2 more
core +1 more source
Misinterpreting modified gravity as dark energy: a quantitative study
, 2022 Standard cosmological data analyses typically constrain simple phenomenological dark-energy parameters, for example the present-day value of the equation of state parameter, w0, and its variation with scale factor, wa.
Nesbit, E. +7 more
core +1 more source
Advanced Functional Materials, EarlyView.A sequential dual‐alignment strategy independently programs the orientation of conductive metal‐organic framework (c‐MOF) microrods and liquid crystals within a composite film. This approach creates an asymmetric bilayer structure that enables precise, multi‐responsive actuation.
Taegyun Hong +5 more
wiley +1 more source
Lemaître-Tolman-Bondi static universe in Rastall-like gravity
Nuclear Physics B, 2020 In this work, we try to obtain a stable Lemaître-Tolman-Bondi (LTB) static universe, which is spherically symmetric and radially inhomogeneous. However, this is not an easy task, and fails in general relativity (GR) and various modified gravity theories,
Zhong-Xi Yu, Shou-Long Li, Hao Wei
doaj +1 more source
Ghost constraints on modified gravity [PDF]
Physics Letters B, 2005 7 pages; v2: typos ...
Nunez, Alvaro, Solganik, Slava
openaire +2 more sources