Results 101 to 110 of about 2,732,923 (363)

Additive Manufacturing of Stretchable Zipping Electrostatic Actuators through Spray Encapsulation of a Frozen Liquid

Advanced Materials Technologies, EarlyView.
This work presents a method to print multi‐layer elastomer structures containing liquid cavities, where the fluid is incorporated as part of the printing process by freezing it, thus avoiding the conventional final filling step. We demonstrate this process by fabricating and characterizing dense arrays of zipping electrostatic actuators.
Giulio Grasso, Samuel Rosset, Herbert Shea   +2 more
wiley   +1 more source

Constraining |V cs | and physics beyond the Standard Model from exclusive (semi)leptonic charm decays

Journal of High Energy Physics
We study the available data on exclusive leptonic and semileptonic c → sℓ + ν decays within the Standard Model and beyond. Our analysis accounts for theory correlations between the relevant hadronic matrix elements through application of dispersive ...
Carolina Bolognani, Méril Reboud, Danny van Dyk, K. Keri Vos   +3 more
doaj   +1 more source

Probing the pre-BBN universe with gravitational waves from cosmic strings [PDF]

Journal of High Energy Physics, 2018
A bstractMany motivated extensions of the Standard Model predict the existence of cosmic strings. Gravitational waves originating from the dynamics of the resulting cosmic string network have the ability to probe many otherwise inaccessible properties of
Yanou Cui, M. Lewicki, D. Morrissey, J. Wells   +3 more
semanticscholar   +1 more source

Chaos and gravitational waves [PDF]

Physical Review D, 2001
The gravitational waveforms of a chaotic system will exhibit sensitive dependence on initial conditions. The waveforms of nearby orbits decohere on a timescale fixed by the largest Lyapunov exponent of the orbit. The loss of coherence has important observational consequences for systems where the Lyapunov timescale is short compared to the chirp ...
openaire   +2 more sources

Electromagnetic waves and Stokes parameters in the wake of a gravitational wave [PDF]

General Relativity and Gravitation 2012, 2012
A theoretical description of electromagnetic waves in the background of a (weak) gravitational wave is presented. Explicit expressions are obtained for the Stokes parameters during the passage of a plane-fronted gravitational wave described by the Ehlers-Kundt metric.
arxiv   +1 more source

Omnidirectional and Multi‐Material In Situ 3D Printing Using Acoustic Levitation

Advanced Materials Technologies, EarlyView.
An acoustophoretic 3D fabrication system enabling omnidirectional, multi‐material in situ printing is presented via acoustic levitation. Utilizing a phased array of transducers (PAT), it generates acoustophoretic forces for levitating and transporting materials in mid‐air, allowing precise, contactless, and voxel‐by‐voxel printing onto complex ...
Hongyi Chen, Shubhi Bansal, Diego Martinez Plasencia, Lucy Di‐Silvio, Jie Huang, Sriram Subramanian, Ryuji Hirayama   +6 more
wiley   +1 more source

New physics contributions to moments of inclusive b → c semileptonic decays

Journal of High Energy Physics, 2023
Inclusive semileptonic B → X c ℓ ν ¯ ℓ $$ {X}_c\ell {\overline{\nu}}_{\ell } $$ decays, where ℓ = μ, e, are by now standard candles in the determination of the CKM element |V cb |. These determinations rely on the heavy-quark expansion and use moments of
Matteo Fael, Muslem Rahimi, K. Keri Vos
doaj   +1 more source

Primordial gravitational waves, precisely: the role of thermodynamics in the Standard Model [PDF]

, 2018
In this paper, we revisit the estimation of the spectrum of primordial gravitational waves originated from inflation, particularly focusing on the effect of thermodynamics in the Standard Model of particle physics.
K. Saikawa, S. Shirai
semanticscholar   +1 more source

Gravitational waves induced by scalar perturbations as probes of the small-scale primordial spectrum [PDF]

Physical Review D, 2018
Compared to primordial perturbations on large scales, roughly larger than 1 Mpc, those on smaller scales are not severely constrained. We revisit the issue of probing small-scale primordial perturbations using gravitational waves (GWs), based on the fact
Keisuke Inomata, T. Nakama
semanticscholar   +1 more source

Gravitational wave memory produced by cosmic background radiation [PDF]

arXiv, 2022
It is well known that energy fluxes will produce gravitational wave memory. The gravitational wave memory produced by background including cosmic microwave background (CMB), cosmic neutrino background (C$\nu$B), and gravitational wave background is investigated in this work.
arxiv