Results 121 to 130 of about 79,313 (303)
Proposed new probe of modified gravity
, 2011 We suggest a new efficient way to constrain a certain class of large scale modifications of gravity. We show that the scale-free relation between density and size of dark matter halos, predicted within the ΛCDM model with Newtonian gravity, gets modified
Boyarsky, A. +3 more
core +2 more sources
Cosmological Analysis of Modified Holographic Ricci Dark Energy in Chern-Simons Modified Gravity
Advances in High Energy Physics, 2019 In this paper, we study the cosmological analysis of the modified holographic Ricci dark energy model and reconstruct different scalar field models in the context of Chern-Simons modified gravity.
Sarfraz Ali, M. Jamil Amir
doaj +1 more source
Hydrogel‐Based Airway‐on‐Tube With Perfusable Endothelial Lumen and Outward Epithelialization
Advanced Materials, EarlyView.A hydrogel‐based airway‐on‐tube platform featuring a perfusable endothelial lumen and outward epithelialization is presented. The system supports primary human bronchial epithelial and lung microvascular endothelial coculture under air‐liquid interface conditions.
Ali Doryab +8 more
wiley +1 more source
Automated multigravity assist trajectory planning with a modified ant colony algorithm [PDF]
, 2010 The paper presents an approach to transcribe a multigravity assist trajectory design problem into an integrated planning and scheduling problem. A modified Ant Colony Optimization (ACO) algorithm is then used to generate optimal plans corresponding to ...
Vasile, M. +3 more
core +1 more source
Emergent modified gravity coupled to scalar matter
, 2023 Emergent modified gravity presents a new set of generally covariant gravitational theories in which the space-time metric is not directly given by one of the fundamental fields. A metric compatible with the modified dynamics of gravity is instead derived
Bojowald, Martin, Duque, Erick I.
core +2 more sources
Advanced Materials, EarlyView.An Aloe‐pinspired droplet electricity generator (A‐DEG) overcomes the limited energy collection zone of conventional DEGs by guiding impact droplets through a channeling midrib and artificial cuticle. The channeling midrib induces uni‐directional droplet spreading, while the artificial cuticle on the midrib further reinforces this behavior through its ...
Gibeom Lee +8 more
wiley +1 more source
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
core
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.
openaire +2 more sources
AI–Guided 4D Printing of Carnivorous Plants–Inspired Microneedles for Accelerated Wound Healing
Advanced Materials, EarlyView.This work presents an artificial intelligence (AI)‐guided 4D‐printed microneedle platform inspired by carnivorous plants for wound healing. A thermo‐responsive shape memory polymer enables body temperature–triggered self‐coiling for autonomous wound closure.
Hyun Lee +21 more
wiley +1 more source
Pure-Connection Gravity and Anisotropic Singularities
Universe, 2018 In four space-time dimensions, there exists a special infinite-parameter family of chiral modified gravity theories. They are most properly described by a connection field, with space-time metric being a secondary and derived concept.
Kirill Krasnov, Yuri Shtanov
doaj +1 more source