Results 41 to 50 of about 3,566,556 (147)

A Quantitative Stability Evaluation Method of VSC for Optimizing Control Parameters and Extending Stability Boundary to Avoid Oscillations

open access: yesApplied Sciences, 2023
Oscillations caused by the interaction between voltage source converters (VSCs) and weak grids are vital threats to the stability of power systems. Determining the appropriate parameters for the control of VSCs is essential to prevent the occurrence of ...
Xiaofeng Jiang   +7 more
doaj   +1 more source

Robust Stability of Quantum Systems with Nonlinear Dynamic Uncertainties

open access: yes, 2013
This paper considers the problem of robust stability for a class of uncertain nonlinear quantum systems subject to unknown perturbations in the system Hamiltonian.
Petersen, Ian R.
core   +1 more source

Dynamic Modeling and Nonlinear Analysis of a Spur Gear System Considering a Nonuniformly Distributed Meshing Force

open access: yesApplied Sciences, 2022
In previous studies, the meshing force of a gear system is usually treated as being uniformly distributed for the convenience of analysis. In practical applications, however, it is nonuniformly distributed along the line of action due to machining errors,
Bohan Jin   +3 more
doaj   +1 more source

On the General Ericksen-Leslie System: Parodi's Relation, Well-posedness and Stability

open access: yes, 2012
In this paper we investigate the role of Parodi's relation in the well-posedness and stability of the general Ericksen-Leslie system modeling nematic liquid crystal flows.
C. Liu   +42 more
core   +1 more source

Attenuated Codon Optimality Contributes to Neural-Specific mRNA Decay in Drosophila. [PDF]

open access: yes, 2018
Tissue-specific mRNA stability is important for cell fate and physiology, but the mechanisms involved are not fully understood. We found that zygotic mRNA stability in Drosophila correlates with codon content: optimal codons are enriched in stable ...
Alhusaini, Najwa   +5 more
core   +2 more sources

Metastability – Markovian approach

open access: yesMetalurgija, 2013
A complete system of events of nonlinear processes in complex dynamical systems describes the evolution of the distribution. Different stages of evolution of the distribution declared stable, metastable and unstable systems.
I. Tanackov   +4 more
doaj  

Identification and Analysis of Cross-Impacts of Key Factors and Assessing the Level of Regional Sustainability with a Strategic Foresight Approach (A Case Study of Northern Khorasan Province) [PDF]

open access: yesجغرافیا و پایداری محیط, 2016
1-Introduction In the present era, characterized by uncertainty, initiative, and change, the urban and regional planners have been increasingly trying to apply various forms of future-oriented approaches and strategic planning to respond the challenges ...
Morteza Mohamadpourjaberi   +3 more
doaj  

Efficiency analysis of control algorithms in spatially distributed systems with chaotic behavior

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2014
The paper presents results of examination of control algorithms for the purpose of controlling chaos in spatially distributed systems like the coupled map lattice (CML).
Korus Łukasz
doaj   +1 more source

Ultra-low noise microwave generation with fiber-based optical frequency comb and application to atomic fountain clock

open access: yes, 2009
We demonstrate the use of a fiber-based femtosecond laser locked onto an ultra-stable optical cavity to generate a low-noise microwave reference signal.
A. Clairon   +13 more
core   +3 more sources

Sub-synchronous oscillation risk between PMSG farm and series complement

open access: yes电力工程技术, 2022
With the continuous expansion of power grid scale, the phenomenon of subsynchronous oscillation caused by series compensated long-distance transmission system occurs frequently.
LIU Wenyuan   +4 more
doaj   +1 more source

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