Results 81 to 90 of about 210,118 (339)

Constraining the EdGB theory with extreme mass-ratio inspirals

European Physical Journal C: Particles and Fields
The Einstein-dilaton-Gauss–Bonnet (EdGB) theory is a modified theory of gravity which include a scalar field to couple with the higher order curvature terms.
Jing Tan, Jian-dong Zhang, Hui-Min Fan, Jianwei Mei   +3 more
doaj   +1 more source

A formalism for magnon gravitational wave detectors

European Physical Journal C: Particles and Fields, 2020
In order to detect high frequency gravitational waves, we need a new detection method. In this paper, we develop a formalism for a gravitational wave detector using magnons in a cavity. Using Fermi normal coordinates and taking the non-relativistic limit,
Asuka Ito, Jiro Soda
doaj   +1 more source

Gait Analysis of Pak Biawak: A Necrobot Lizard Built using the Skeleton of an Asian Water Monitor (Varanus Salvator)

Advanced Robotics Research, EarlyView.
Pak Biawak, a necrobot, embodies an unusual fusion of biology and robotics. Designed to repurpose natural structures after death, it challenges conventional boundaries between nature and engineering. Its movements are precise yet unsettling, raising questions about sustainability, ethics, and the untapped potential of biointegrated machines.
Leo Foulds, Donan Satria Yudha, Parvez Alam   +2 more
wiley   +1 more source

Higher-order gravity and the cosmological background of gravitational waves

, 2007
The cosmological background of gravitational waves can be tuned by the higher-order corrections to the gravitational Lagrangian. In particular, it can be shown that assuming $R^{1+\epsilon}$, where $\epsilon$ indicates a generic (eventually small ...
Allemandi, Allemandi, Allemandi, Allen, Babusci, Bahcall, Buchbinder, Capozziello, Capozziello, Capozziello, Capozziello, Capozziello, Capozziello, Caroll, Carroll, Cole, Faraoni, Farhoudi, Ferrari, Grishchuk, Guth, Hwang, Kerner, La, Maggiore, Magnano, Mariafelicia De Laurentis, Mauro Francaviglia, Nojiri, Nojiri, Padmanabhan, Peebles, Riess, Sachs, Salvatore Capozziello, Sathyaprakash, Seljak, Spergel, Weinberg, Will   +39 more
core   +1 more source

Cylindrical gravitational waves

Classical and Quantum Gravity, 1989
It is shown how the general cylindrical wave solution of Einstein's equations can be obtained from a matrix-valued generating function by adapting \textit{R. S. Ward}'s splitting construction [Gen. Relativ. Gravitation 15, 105-109 (1983; Zbl 0504.53022)].
openaire   +2 more sources

Backpropagation Through Soft Body: Investigating Information Processing in Brain–Body Coupling Systems

Advanced Robotics Research, EarlyView.
This study explores how information processing is distributed between brains and bodies through a codesign approach. Using the “backpropagation through soft body” framework, brain–body coupling agents are developed and analyzed across several tasks in which output is generated through the agents’ physical dynamics.
Hiroki Tomioka, Katsuma Inoue, Yasuo Kuniyoshi, Kohei Nakajima   +3 more
wiley   +1 more source

Analytical and Numerical Analysis of Circumbinary Disk Dynamics. I. Coplanar Systems

The Astrophysical Journal
We present an analytical and numerical study of a system composed of a stellar binary pair and a massless, locally isothermal viscous accretion disk that is coplanar to the binary orbital plane.
Siddharth Mahesh, Sean T. McWilliams, Michal Pirog   +2 more
doaj   +1 more source

Brane Waves

, 2004
In brane-world cosmology gravitational waves can propagate in the higher dimensions (i.e., in the `bulk'). In some appropriate regimes the bulk gravitational waves may be approximated by plane waves. We systematically study five-dimensional gravitational
Alan A Coley, Binetruy P, Coley A, Coley A, Coley A A, Coley A A, Coley A A, Kiritsis E, Langlois D, Maartens Roy, Shiromizu T, Sigbjørn Hervik, Siklos S T C, Stephani H   +13 more
core   +1 more source

A Novel Approach to Topological Graph Theory with R-K Diagrams and Gravitational Wave Analysis [PDF]

, 2021
Animikh Roy, Andor Kesselman
openalex   +1 more source

Bioinspired Twisted Artificial Muscles with Enhanced Performance for Underwater Applications

Advanced Science, EarlyView.
A climbing plant‐inspired twisted artificial muscle (TAM) with a braided configuration and seal‐inspired thermal insulation enables high‐performance underwater actuation. Enhanced deformation, reduced heat dissipation, and rapid motion are validated through a bionic ray that exhibits straight and turning motions.
Jin Sun, Yuan Fu, Shijng Zhang, Jing Li, Dehong Wang, Junkao Liu, Yingxiang Liu   +6 more
wiley   +1 more source