Results 11 to 20 of about 806,308 (335)

Linear Momenta Transferred to the Dental Implant-Bone and Natural Tooth—PDL-Bone Constructs Under Impact Loading: A Comparative in-vitro and in-silico Study

open access: yesFrontiers in Bioengineering and Biotechnology, 2020
During dental trauma, periodontal ligament (PDL) contributes to the stability of the tooth-PDL-bone structure. When a dental implant is inserted into the bone, the dental implant-bone construct will be more prone to mechanical damage, caused by impact ...
Ayda Karimi Dastgerdi   +5 more
doaj   +1 more source

Topologically driven Rabi-oscillating interference dislocation

open access: yesNanophotonics, 2022
Quantum vortices are the quantized version of classical vortices. Their center is a phase singularity or vortex core around which the flow of particles as a whole circulates and is typical in superfluids, condensates and optical fields.
Rahmani Amir   +5 more
doaj   +1 more source

Uneven Terrain Walking with Linear and Angular Momentum Allocation

open access: yesSensors, 2023
Uneven terrain walking is hard to achieve for most child-size humanoid robots, as they are unable to accurately detect ground conditions. In order to reduce the demand for ground detection accuracy, a walking control framework based on centroidal ...
Zhicheng He   +3 more
doaj   +1 more source

Reflection of vortex beam from relativistic flying mirror

open access: yesScientific Reports, 2022
In this study, the change in the angular momentum of a vortex beam after reflection from a relativistic flying mirror is investigated. This change is determined by performing full three-dimensional particle-in-cell simulations.
Weixin Chen   +4 more
doaj   +1 more source

Infrared renormalons in kinematic distributions for hadron collider processes

open access: yesJournal of High Energy Physics, 2021
Infrared renormalons in Quantum Chromodynamics are associated with non-perturbative corrections to short distance observables. Linear renormalons, i.e. such that the associated non-perturbative corrections scale like one inverse power of the hard scale ...
Silvia Ferrario Ravasio   +2 more
doaj   +1 more source

Pseudogauge freedom and the SO(3) algebra of spin operators

open access: yesPhysics Letters B, 2023
The energy-momentum and spin tensors for a given theory can be replaced by alternative expressions that obey the same conservation laws for the energy, linear momentum, as well as angular momentum but, however, differ by the local redistribution of such ...
Sourav Dey   +3 more
doaj   +1 more source

Effect of Twisting Phases on Linear–Circular Polarization and Spin–Orbital Angular Momentum Conversions in Tightly Focused Vector and Scalar Beams

open access: yesPhotonics, 2023
We theoretically investigated the effect of a new type of twisting phase on the polarization dynamics and spin–orbital angular momentum conversion of tightly focused scalar and vector beams.
Shu-Dan Wu   +2 more
doaj   +1 more source

Diffusive Propagation of Energy in a Non-Acoustic Chain [PDF]

open access: yes, 2016
We consider a non acoustic chain of harmonic oscillators with the dynamics perturbed by a random local exchange of momentum, such that energy and momentum are conserved. The macroscopic limits of the energy density, momentum and the curvature (or bending)
Komorowski, Tomasz, Olla, Stefano
core   +4 more sources

Bowen–York model solution redux

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
Initial value problem in general relativity is often solved numerically; with only a few exceptions one of which is the “model” solution of Bowen and York where an analytical form of the solution is available.
Emel Altas, Bayram Tekin
doaj   +1 more source

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