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Detailed Stability Analysis of Electroweak Strings [PDF]
Nuclear Physics B, 1992 We give a detailed stability analysis of the Z-string in the standard electroweak model. We identify the mode that determines the stability of the string and numerically map the region of parameter space where the string is stable. For $\sin^2 \theta_W =
Achúcarro +13 more
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Stability of BTZ black strings [PDF]
Physical Review D, 2008 We study the dynamical stability of the BTZ black string against fermonic and gravitational perturbations. The BTZ black string is not always stable against these perturbations.
Bin Wang +4 more
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Analysis of the Influence of Downhole Drill String Vibration on Wellbore Stability
Machines, 2023 Most studies related to aspects of wellbore stability, such as wellbore breakage, block dropping, and wellbore expansion, revolve around the physicochemical interaction between drilling fluid and surrounding rock, but relevant studies show that drill ...
Yonggang Shan +4 more
doaj +3 more sources
Stability of Two Doublet Electroweak Strings [PDF]
Physical Review D, 1993 Vortex solutions in the two Higgs doublet electroweak model are constructed, and their stability to small perturbations is studied. The most general perturbation is decomposed into angular momentum modes, the least stable mode is identified, and the ...
Earnshaw, Michael A., James, Margaret
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String Stability Analysis and Design Guidelines for PD Controllers in Adaptive Cruise Control Systems [PDF]
SensorsThis paper proposes a practical design guideline for selecting control parameters in adaptive cruise control (ACC) systems to ensure both individual vehicle stability and string stability in vehicle following systems with homogeneous longitudinal ...
Kangjun Lee, Chanhwa Lee
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PD Control with Feedforward Compensation for String Stable Cooperative Adaptive Cruise Control in Vehicle Platoons [PDF]
SensorsIn this paper, we propose systematic controller design guidelines to ensure both individual vehicle stability and string stability in cooperative adaptive cruise control (CACC)-based platoon systems, assuming a homogeneous platoon where all vehicles ...
Kangjun Lee, Chanhwa Lee
doaj +2 more sources
The Stability of D-term Cosmic Strings [PDF]
Fortschritte der Physik, 2007 In this note, which is based on hep-th/0611111, we review the stability of the static, positive deficit angle D-term string solutions of D=4, N=1 supergravity with a constant Fayet-Iliopoulos term.
Achúcarro +21 more
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Applied Sciences, 2023 For the vehicular platoon consisting of connected automotive vehicles, time delays degrade both the internal stability and string stability. In this study, the internal stability and string stability of the vehicular platoon suffering from sensing delay ...
Xu Zhu +3 more
doaj +1 more source
Mathematics, 2023 In this article, we investigate the behavior of vehicle platoons operating in a predecessor-following configuration, implemented through sampled-data control systems.
Felipe I. Villenas +2 more
doaj +1 more source
Cosmic string current stability [PDF]
Physical Review D, 2000 RevTex, 28 pages, 3 ...
Davis, Stephen C. +2 more
openaire +2 more sources