Results 121 to 130 of about 1,952,488 (304)
Irreversible Geometrothermodynamics of Open Systems in Modified Gravity. [PDF]
Entropy (Basel), 2023 Pinto MAS, Harko T, Lobo FSN.
europepmc +1 more source
COSMIC ACCELERATION AND MODIFIED GRAVITY
International Journal of Modern Physics D, 2007 I briefly discuss some attempts to construct a consistent modification to general relativity (GR) that might explain the observed late-time acceleration of the Universe and provide an alternative to dark energy. I describe the issues facing extensions to GR, illustrate these with a specific example, and discuss the resulting observational and ...
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Cosmological hints of modified gravity?
Physical Review D, 2016 The recent measurements of Cosmic Microwave Background temperature and polarization anisotropies made by the Planck satellite have provided impressive confirmation of the $Λ$CDM cosmological model. However interesting hints of slight deviations from $Λ$CDM have been found, including a $95 \%$ c.l. preference for a "modified gravity" structure formation
DI VALENTINO, ELEONORA +2 more
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Autonomous Folding of Soft Matter From Living Polymers
Advanced Materials, EarlyView.Origami structures are endowed with “living” polymer creases that grow, remodel, and stiffen in response to nutrient solutions. This post‐fabrication growth enables autonomous folding, iterative regrowth, and mechanical tuning involving origami assemblies, such as cranes, Miura‐ori tessellations, rigid and non‐rigid square‐twist patterns, establishing ...
Jiahe Huang +6 more
wiley +1 more source
A Comprehensive Analysis of Hyperbolical Fluids in Modified Gravity. [PDF]
Entropy (Basel), 2022 Yousaf Z, Bhatti MZ, Khlopov M, Asad H.
europepmc +1 more source
A viable model for modified gravity [PDF]
Astrophysics and Space Science, 2014 We propose a model for modified gravity that meets the conditions of viability. The model has stable constant curvature solution and for an special case contains flat space time solution. The model also leads to matter stability under small perturbations of scalar curvature.
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Review of Emergent Gravity [PDF]
openThe idea that gravity may not be a fundamental interaction but rather an emergent phenomenon has gained increasing attention in recent decades. Building on the thermodynamical properties of spacetime horizons, various approaches suggest that Einstein’
GERVANI, LORENZO
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Advanced Materials, EarlyView.This review examines passive, active, and hybrid liquid manipulation strategies, highlighting hybrid approaches as an emerging route to reconcile energy efficiency with adaptive control. By actively reconstructing passive surfaces to store programmable interfacial energy, hybrid systems enable flexible yet low‐power liquid transport, with perspectives ...
Jiaqi Miao +3 more
wiley +1 more source
Modified entropy from action principle
Physics Letters BWe propose a modified gravity theory by extending the Einstein-Hilbert action with an arbitrary function of the Ricci scalar and the Kretschmann scalar invariants.
A. Dehyadegari, A. Sheykhi
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GOCE data evidence underplating beneath the Paraná basin
, 2012 The Paraná basin in the stable South American Platform accumulated a thick sediment layer during the Paleozoic, with more than 3500 m thickness. In Early Cretaceous the same area experienced a flood basalt volcanism which produced a LIP-(Large Igneous ...
MARIANI, PATRIZIA +2 more
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