Results 41 to 50 of about 24,685 (268)
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 +1 more source
Unveiling the Universe: Tsallis Holographic Dark Energy and Modified Logarithmic f(R) Gravity [PDF]
Iranian Journal of Astronomy and AstrophysicsIn this paper, we delve into the intricacies of the Tsallis holographic dark energy model within the framework of a modified logarithmic f(R) gravity. This gravity model is distinctive due to its composition, which includes both polynomial terms and a ...
Fatemeh Baziar, Jafar Sadeghi
doaj +1 more source
Advanced Functional Materials, EarlyView.This paper presents a digital microfluidics‐based technique for transferring and reconfiguring soft nanomembranes. Laser‐machined nanothin membranes are picked up, transported, and aligned via tailored surface tension and the actuation of water droplets, enabling the development of flexible electronics, the integration of functional materials on 3D ...
Quang Anh Nguyen +15 more
wiley +1 more source
Rotating Casimir wormholes in f(R) gravity: a modified gravity extension of exotic spacetime models
European Physical Journal C: Particles and FieldsWe investigate the construction and viability of rotating Casimir wormholes within the framework of f(R) gravity, focusing on models of the form $$f(R) = R + \alpha R^2$$ f ( R ) = R + α R 2 .
Behnam Pourhassan
doaj +1 more source
Advanced Functional Materials, EarlyView.This work developed a smart Janus wood membrane integrating asymmetric wettability with built‐in electrical sensing for oil‐water separation. The membrane achieved > 99.5% separation efficiency and high flux by leveraging wood's natural anisotropic pore structure.
Kaiwen Chen +10 more
wiley +1 more source
Pickering‐Engineered Microparticles for Magnetically Guided Motion and Light‐Triggered Catalysis
Advanced Functional Materials, EarlyView.Magnetically responsive wax microparticles stabilized by hematite cubes through the Pickering emulsification strategy are developed, showing controlled size, motion, and light‐activated catalytic activity. Annealing under a magnetic field enhances their mobility and steering.
Chiara Ferlito +6 more
wiley +1 more source
Ricci inverse gravity wormholes
Physics Letters BThe current study deals with the new wormhole solutions in the background of fourth order new modified Ricci inverse gravity. Two new classes of the wormhole solutions are analyzed by showing the valid region for the main part of wormhole geometry under ...
G. Mustafa
doaj +1 more source
Advanced Functional Materials, EarlyView.We introduce a capillary‐filtering‐based particle‐filling (CFPF) process that simultaneously forms vertical thermal pathways and electrical vias within µ‐pores. In situ microfluidic analysis reveals that capillary‐driven velocity gradients generate vorticity that governs µ‐platelet rotation and vertical alignment.
Yujin Mun +11 more
wiley +1 more source
Electrocapillary Modulated Interfacial Tension Amplifies Liquid Metal Transduction
Advanced Functional Materials, EarlyView.This study presented an electrocapillary‐enhanced magnetohydrodynamic pumping strategy that harnesses the Lorentz force and interfacial tension modulation of liquid metal droplets to achieve amplified fluidic power. The system enabled low‐voltage, self‐oscillating fluidic transduction with enhanced pressure and flow generation, supporting compact ...
Saba Firouznia +3 more
wiley +1 more source