Results 71 to 80 of about 178,359 (292)
Advanced Materials, EarlyView.Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang +5 more
wiley +1 more source
Self-dual pp-wave solutions in chiral higher-spin gravity
Journal of High Energy PhysicsWe show that chiral higher-spin gravity with a vanishing cosmological constant admits a class of exact self-dual pp-wave solutions derived from harmonic scalar functions and two principal spinors.
Tung Tran
doaj +1 more source
An étude on global vacuum energy sequester
Journal of High Energy Physics, 2017 Recently two of the authors proposed a mechanism of vacuum energy sequester as a means of protecting the observable cosmological constant from quantum radiative corrections.
Guido D’Amico +5 more
doaj +1 more source
A Comparative Study on Early‐Stage Icing Evaluation Techniques for Passive Ice Protection Systems
Advanced Materials Interfaces, EarlyView.This study addresses the lack of standardized methodologies for evaluating the early‐stage icing performance of passive ice protection systems. A unified experimental protocol is proposed and applied to representative hydrophilic and hydrophobic surfaces under controlled conditions.
Lorenzo Facco +4 more
wiley +1 more source
Pregeometry and spontaneous time-space asymmetry
Journal of High Energy Physics, 2022 In pregeometry a metric arises as a composite object at large distances. We investigate if its signature, which distinguishes between time and space, could be a result of the dynamics rather than being built in already in the formulation of a model.
C. Wetterich
doaj +1 more source
Ghirardi-Rimini-Weber model with massive flashes
, 2018 I introduce a modification of the Ghirardi-Rimini-Weber (GRW) model in which the flashes (or collapse space-time events) source a classical gravitational field.
Tilloy, Antoine
core +1 more source
Bistable Wetting States on a Smooth Surface
Advanced Materials Interfaces, EarlyView.Droplets on non‐textured surfaces typically exhibit a monostable wetting state. Here, we show that droplets can exhibit bistability even without surface texture. We investigate water droplets on a smooth substrate immersed in oil. We find that molecular modulation causes the droplet states to bifurcate into either a sticking or a repellent state ...
Mizuki Tenjimbayashi, Shunto Arai
wiley +1 more source
Topological Point Defects in SmC* Liquid Crystals Under Mechanical Disturbance
Advanced Materials Interfaces, EarlyView.Tangetial air jet shear inducess island formation and nucleates topological point defects in uniform SmC films. Island bounded by edge dislocation loops shrink and transform into isolated point defects under continued shear. Mechanical perturbatio provides a controllable route for defect engineering in smectric liquid crystal thin films.
Gunganist Kongklad +3 more
wiley +1 more source
Effective action of dilaton gravity as the classical double copy of Yang-Mills theory [PDF]
Physical Review D, 2019 23 pages. v2: some typos fixed.
Plefka, Jan +2 more
openaire +3 more sources
Are there Einsteinian gravities involving covariant derivatives of the Riemann tensor?
Journal of High Energy Physics, 2022 We study the particle content of higher derivative theories of gravity built with contractions of the Riemann tensor and its covariant derivatives. In the absence of the latter, there is a family of theories exhibiting an Einsteinian spectrum known as ...
José D. Edelstein +2 more
doaj +1 more source