Results 21 to 30 of about 6,661,624 (342)

Finite-Temperature Phase Structure of Lattice QCD with Wilson Quark Action [PDF]

open access: yes, 1995
The long-standing issue of the nature of the critical line of lattice QCD with the Wilson quark action at finite-temperatures, defined to be the line of vanishing pion screening mass, and its relation to the line of finite-temperature chiral tansition is
A. Ukawa   +14 more
core   +3 more sources

Identification of Critical Transmission Lines in Complex Power Networks

open access: yesEnergies, 2017
Growing load demands, complex operating conditions, and the increased use of intermittent renewable energy pose great challenges to power systems. Serious consequences can occur when the system suffers various disturbances or attacks, especially those ...
Ziqi Wang   +4 more
doaj   +1 more source

Bayesian on-line anticipation of critical transitions

open access: yesNew Journal of Physics, 2022
The design of reliable indicators to anticipate critical transitions in complex systems is an important task in order to detect imminent regime shifts and to intervene at an early stage to either prevent them or mitigate their consequences.
Martin Heßler, Oliver Kamps
doaj   +1 more source

Counting Critical Formations on a Line

open access: yesSIAM Journal on Control and Optimization, 2014
Formation shape control for a collection of point agents is concerned with devising decentralized control laws which ensure that the formation will move so that certain interagent distances approximate prescribed values as closely as possible.
Anderson, Brian, Helmke, Uwe
openaire   +2 more sources

Identification of Critical Hidden Failure Line Based on State-failure-network

open access: yesJournal of Modern Power Systems and Clean Energy, 2022
The hidden failures generally exist in power systems and could give rise to cascading failures. Identification of hidden failures is challenging due to very low occurrence probabilities. This paper proposes a state-failure-network (SF-net-work) method to
Linzhi Li   +5 more
doaj   +1 more source

Applying Markowitz's Critical Line Algorithm [PDF]

open access: yesSSRN Electronic Journal, 2007
We provide a Matlab quadratic optimization tool based on Markowitz’s citical line algorithm that significantly outperforms standard software packages and a recently developed operations research algorithm. As an illustration: For a 2000 asset universe our method needs less than a second to compute the whole frontier whereas the quickest competitor ...
Andras Niedermayer, Daniel Niedermayer
openaire   +5 more sources

Behavior of the Thermodynamic Properties of Binary Mixtures near the Critical Azeotrope

open access: yesEntropy, 2003
: In this work we investigate the critical line of binary azeotropic mixtures of acetone-n-pentane. We pinpoint the abnormal behavior of the critical density line as a function of the mole fraction of one of the component and show its influence on other ...
Azzedine Abbaci
doaj   +1 more source

Quantum critical points, lines, and surfaces

open access: yesPhysical Review B, 2023
11 pages, 11 ...
Hui Yu, Sudip Chakravarty
openaire   +2 more sources

Critical span identification model with critical periods for dynamic thermal rating equipment arrangement [PDF]

open access: yesITM Web of Conferences, 2022
Compared with static thermal rating (STR), dynamic thermal rating (DTR) technology can explore the potential current-carrying capacity of overhead lines and bring considerable economic benefits. Considering that there are many spans of the overhead line,
Yin Yimin   +3 more
doaj   +1 more source

Computing Criticality of Lines in Power Systems [PDF]

open access: yes2007 IEEE International Symposium on Circuits and Systems (ISCAS), 2007
The authors propose a computationally efficient method based on nonlinear optimization to identify critical lines, failure of which can cause severe blackouts. The method computes criticality measure for all lines at a time, as opposed to detecting a single vulnerability, providing a global view of the system.
Pinar, Ali   +2 more
openaire   +2 more sources

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