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Critical and Flow-Critical Snarks Coincide [PDF]

open access: yesDiscussiones Mathematicae Graph Theory, 2021
Over the past twenty years, critical and bicritical snarks have been appearing in the literature in various forms and in different contexts. Two main variants of criticality of snarks have been studied: criticality with respect to the non-existence of a ...
Máčajová Edita, Škoviera Martin
doaj   +4 more sources

Critical flow and dissipation in a quasi-one-dimensional superfluid. [PDF]

open access: yesSci Adv, 2015
The slowdown of a superflow through a nanoscale pipe is measured and quantified. In one of the most celebrated examples of the theory of universal critical phenomena, the phase transition to the superfluid state of 4He belongs to the same three ...
Duc PF   +5 more
europepmc   +3 more sources

The critical 2d Stochastic Heat Flow [PDF]

open access: yesInventiones mathematicae, 2023
AbstractWe consider directed polymers in random environment in the critical dimension $$d = 2$$ d = 2 , focusing on the intermediate disorder regime when the model undergoes a phase transition. We prove that, at criticality, the diffusively
Caravenna F., Sun R., Zygouras N.
openaire   +3 more sources

Two-component two-phase critical flow [PDF]

open access: yesFME Transactions, 2016
A model of two-component two-phase critical flow is presented. The modelling approach is based on one-dimensional homogeneous gas-liquid two-phase isentropic flow of mixture.
Petrović Milan M.   +1 more
doaj   +2 more sources

Electrolyte Lifetime in Aqueous Organic Redox Flow Batteries: A Critical Review

open access: yesChemical Reviews, 2020
Aqueous organic redox flow batteries (RFBs) could enable widespread integration of renewable energy, but only if costs are sufficiently low. Because the levelized cost of storage for an RFB is a function of electrolyte lifetime, understanding and ...
David G Kwabi   +2 more
exaly   +2 more sources

Superfluid flow above the critical velocity [PDF]

open access: yesScientific Reports, 2017
Superfluidity and superconductivity have been widely studied since the last century in many different contexts ranging from nuclear matter to atomic quantum gases.
A. Paris-Mandoki   +5 more
doaj   +9 more sources

The Fund-Flow Approach: A Critical Survey [PDF]

open access: yesSSRN Electronic Journal, 2009
AbstractThe fund‐flow approach to production theory was proposed by Nicholas Georgescu‐Roegen almost half a century ago and it provides a description of production as a process unfolding in time and entailing a temporal coordination between different elements.
Giuseppe Vittucci Marzetti
openaire   +5 more sources

Critical Layers in Shear Flows [PDF]

open access: greenAnnual Review of Fluid Mechanics, 1986
The normal mode approach to investigating the stability of a parallel shear flow involves the superposition of a small wavelike perturbation on the basic flow. Its evolution in space and/or time is then determined. In the linear inviscid theory, if ū(y) is the basic velocity profile, then a singularity occurs at critical points yc, where ū = c, the ...
S. A. Maslowe
openalex   +3 more sources

Critical Flow: A Historical Perspective

open access: yesJournal of Hydraulic Engineering, 2010
Peer ...
Castro-Orgaz, Óscar, Hager, Willi H.
openaire   +4 more sources

A proposed correlation for critical flow rate of water flow

open access: yesNuclear Engineering and Technology, 2015
A new correlation predicting the idealized critical mass-flow rates of water for subcooled and saturated liquid water including two-phase water flow was developed for a wide range of upstream stagnation pressures (e.g., 0.5–20.0 MPa).
Yeon-Sik Kim
doaj   +3 more sources

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