Results 11 to 20 of about 8,721,470 (292)

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   +5 more sources

Critical Flow – Towards a Construction Flow Theory [PDF]

open access: yes, 2006
This paper introduces the concept of Construction Physics as a more comprehensive way of understanding the construction process from a flow perspective. It establishes a preliminary definition of the term and investigates briefly the present knowledge, flow models and methods for their management.
Bertelsen, S   +3 more
core   +4 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   +8 more sources

Transport and deposition behaviour of model slurries in closed pipe flow [PDF]

open access: yes, 2013
Suspensions of solid particles are ubiquitous in nature and industry. From subaqueous and aeolian dunes and ripples to plug flow in the minerals engineering industry, the complexity of the fluid dynamics and interparticle interactions in multiphase flow
Rice, Hugh
core   +6 more sources

On 3-flow-critical graphs

open access: yesEuropean Journal of Combinatorics, 2022
A bridgeless graph $G$ is called $3$-flow-critical if it does not admit a nowhere-zero $3$-flow, but $G/e$ has for any $e\in E(G)$. Tutte's $3$-flow conjecture can be equivalently stated as that every $3$-flow-critical graph contains a vertex of degree three. In this paper, we study the structure and extreme edge density of $3$-flow-critical graphs. We
Jiaao Li   +4 more
openaire   +2 more sources

Two-phase flow boiling in small to micro-diameter tubes [PDF]

open access: yes, 2008
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis is dedicated to the experimental and theoretical study of flow boiling in small to micro diameter tubes using R 134a.
Shiferaw, Dereje
core   +7 more sources

Flow resistance in skimming flow: A critical review [PDF]

open access: yes, 2020
During very large rainfall events, dams and weirs must be equipped with adequate flood release facilities for a safe dissipation of the kinetic energy of the flow. With stepped spillway design, it is essential to predict accurately the flow resistance associated with the steps.
Chanson, H., Yusuda, Y., Ohtsu, I.
openaire   +2 more sources

The critical 2d Stochastic Heat Flow

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   +2 more sources

Critical flow velocities in cohesive saline soils [PDF]

open access: yesE3S Web of Conferences, 2021
The article discusses the issue of determining non-erosion velocities for cohesive saline soil at the bottom and slopes of canals. Based on the formulas of Ts.E. Mirtskhulava for the determination of non-eroding velocities of water flow in cohesive soils,
Eshev Sobir   +5 more
doaj   +1 more source

A Sensitivity Study of Critical Flow Modeling with MELCOR 2.2 Code Based on the Marviken CFT-21 Experiment

open access: yesEnergies, 2021
The paper presents a study of the critical flow phenomena modeling with MELCOR 2.2.15254 severe accident computer code. The Marviken Critical Flow Test number 21 (CFT-21) experiment was selected as a representative critical flow-focused Separate Effect ...
Mateusz Włostowski   +2 more
doaj   +1 more source

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