Results 11 to 20 of about 287,878 (297)

Quantum stabilization of cosmic strings [PDF]

open access: yesModern Physics Letters A, 2015
In the standard model, stabilization of a classically unstable cosmic string may occur through the quantum fluctuations of a heavy fermion doublet. We review numerical results from a semiclassical expansion in a reduced version of the standard model. In this expansion, the leading quantum corrections emerge at one loop level for many internal degrees ...
Weigel, H., Quandt, M., Graham, N.
openaire   +3 more sources

Alleviation of traffic congestion using distributed autonomous control in mixed traffic flow of vehicles with adaptive cruise control and human-driven vehicles

open access: yesNihon Kikai Gakkai ronbunshu, 2022
The number of vehicles equipped with adaptive cruise control (ACC) is increasing, reflecting a trend toward autonomous vehicle development. It is expected that ACC systems will improve traffic in terms of string stability (i.e., attenuation of spacing ...
Masahiko KURISHIGE   +2 more
doaj   +1 more source

Stability of modified electroweak strings [PDF]

open access: yesZeitschrift für Physik C: Particles and Fields, 1996
Minor changes and inclusion of one figure. To be published on Z. f. Physik C.
Masperi, Luis, Megevand, Ariel
openaire   +2 more sources

A Novel Path Planning Algorithm for Truck Platooning Using V2V Communication

open access: yesSensors, 2020
In truck platooning, the leading vehicle is driven manually, and the following vehicles run by autonomous driving, with the short inter-vehicle distance between trucks.
Yongki Lee   +4 more
doaj   +1 more source

COSMIC STRINGS STABILIZED BY FERMION FLUCTUATIONS [PDF]

open access: yesInternational Journal of Modern Physics: Conference Series, 2012
We provide a thorough exposition of recent results on the quantum stabilization of cosmic strings. Stabilization occurs through the coupling to a heavy fermion doublet in a reduced version of the standard model. The study combines the vacuum polarization energy of fermion zero-point fluctuations and the binding energy of occupied energy levels, which ...
Weigel, Herbert   +2 more
openaire   +5 more sources

Stabilizing homogeneous black strings in AdS [PDF]

open access: yesJournal of High Energy Physics, 2020
Abstract It is known that homogenous black strings in flat spacetime are unstable under long wavelength perturbations. Recently, by including scalar fields that depend on the extended coordinates only, homogenous black strings have been constructed in the presence of a negative cosmological constant, therefore implying that generic perturbations will ...
Cisterna, Adolfo   +2 more
openaire   +3 more sources

PL-TOON: A Low-Cost Experimental Platform for Teaching and Research on Decentralized Cooperative Control

open access: yesSensors, 2021
In this paper, we present the development of a low-cost multi-agent system experimental platform for teaching, and research purposes. The platform consists of train-like autonomous agents equipped with local speed estimation, distance sensing to their ...
Andrés A. Peters   +4 more
doaj   +1 more source

Quantum current dissipation in superconducting strings and vortons

open access: yesJournal of High Energy Physics, 2023
In this work, the current stability is discussed for cosmic strings with the bosonic superconductivity. A non-vanishing curvature of string generally induce the quantum instability of the current-carrying particle.
Yoshihiko Abe   +3 more
doaj   +1 more source

Potential Function-Based String Stable Controller for Heavy Road Vehicle Platoons

open access: yesIEEE Access, 2021
Heavy Commercial Road Vehicle (HCRV) platooning is a promising solution to meet increasing freight transportation demands. This paper applies the concept of Artificial Potential Functions (APF) to design a string stable controller, viz., Potential ...
K. B. Devika   +2 more
doaj   +1 more source

Nonlinear Buckling Analysis and Optimization Design of the Y-Type Composite Insulator String

open access: yesAdvances in Civil Engineering, 2022
Under the action of extreme wind load, the overhead transmission line will lead to the fracture of the traditional V-type insulator string, which greatly affects the safety of the power system.
Hua Bao   +5 more
doaj   +1 more source

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