Results 31 to 40 of about 50,546 (263)

A comment on the stability of string monopoles [PDF]

Physics Letters B, 1993
5 ...
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Stability of superconducting strings coupled to cosmic strings [PDF]

Physical Review D, 2012
We study the stability of superconducting strings in a U(1)_{local} x U(1)_{global} model coupled via a gauge field interaction term to U(1) Abelian-Higgs strings. The effect of the interaction on current stability is numerically investigated by varying the relevant parameters within the physical limits of our model.
Babeanu, Alexandru, Hartmann, Betti
openaire   +2 more sources

Robust Time-Delay Feedback Control of Vehicular CACC Systems with Uncertain Dynamics

Sensors, 2020
This paper proposes a new, robust time-delay cooperative adaptive cruise control (CACC) approach for vehicle platooning systems with uncertain dynamics and varying communication delay.
Xiulan Song, Li Chen, Ke Wang, Defeng He
doaj   +1 more source

The energy and stability ofD-term strings [PDF]

Journal of High Energy Physics, 2007
18 pages.
Collinucci, Andrés, Smyth, Paul, Van Proeyen, Antoine   +2 more
openaire   +4 more sources

Network Systems and String Stability

CoRR, 2017
Network systems and their control are highly important and appear in a variety of applications, including vehicle platooning and formation con- trol. Especially vehicle platoons are highly investigated and an interesting problem that arises in this area is string stability, which broadly spoken means that a input signal amplifies unbounded as it ...
Sonja Stüdli, María M. Seron, Richard H. Middleton   +2 more
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Stability of superconducting strings

Journal of High Energy Physics
Abstract We investigate the stability of superconducting strings as bound states of strings and fermion zero modes at both the classical and quantum levels. The dynamics of these superconducting strings can result in a stable configuration, known as a vorton. We mainly focus on global strings, but the majority of the discussion can
Keisuke Harigaya, Xuce Niu, Wei Xue, Fengwei Yang   +3 more
openaire   +3 more sources

Sampled-Data Cooperative Adaptive Cruise Control for String-Stable Vehicle Platooning with Communication Delays: A Linear Matrix Inequality Approach

Machines
This study aims to propose a sampled-data control technique, utilizing a linear matrix inequality (LMI) approach, to achieve string-stable vehicle platooning in a cooperative adaptive cruise control (CACC) system with communication delays.
Yong Hoon Jang, Han Sol Kim
doaj   +1 more source

Ecological Cooperative Adaptive Cruise Control for a Heterogeneous Platoon of Heavy-Duty Vehicles With Time Delays

IEEE Access, 2020
To deal with energy crisis and environmental issues, higher fuel economy standards and more stringent limitations on greenhouse gas emissions for ground vehicles have been made.
Chunjie Zhai, Xiyan Chen, Chenggang Yan, Yonggui Liu, Huajun Li   +4 more
doaj   +1 more source

Safety Evaluation Method of Gas Well Pipe String Stability in Snubbing Operations

Shiyou jixie, 2023
In order to realize the active control of pipe string safety in gas well snubbing operations and prevent the shale gas blowout accidents caused by pipe string instability,based on mechanical analysis and considering the influences of complex factors such
Fu Biwei, Wei Menghui, Yang Chao
doaj  

Sufficient conditions for string stability

International Journal of Systems Science
Zhong-Ping Jiang devoted a large part of his work to the study of the stability properties of interconnected systems. In this short paper we celebrate Zhong-Ping Jiang's 60th birthday by studying a special class of families of interconnected systems: the so-called strings. We develop trajectory-based and Lyapunov-based tools that allow the verification
Iasson Karafyllis, Dionysis Theodosis, Markos Papageorgiou   +2 more
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