Results 11 to 20 of about 4,116,169 (343)

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   +3 more sources

Experimental Determination of the Flow Coefficient for a Constrictor Nozzle with a Critical Outflow of Gas [PDF]

open access: goldFluids, 2023
Reduction of energy expenditures required for various technological processes is a pressing issue in today’s economy. One of the ways to solve this issue in regard to liquefied natural gas (LNG) storage is the recovery of its vapours from LNG tanks using
Victor Bolobov   +2 more
doaj   +2 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
openaire   +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   +8 more sources

On the place of sonic points in a critical flow [PDF]

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2021
Stationary irrotational barotropic gas flows are investigated on the basis of the analysis of three-dimensional Euler equations. Critical flows in the article are those in which the Mach number is everywhere less than or equal to one, and at least at one
Aleksandr I. Besportochny   +1 more
doaj   +1 more source

The application of a minimum specific energy concept for a fish ladder design [PDF]

open access: yesArchives of Civil Engineering, 2022
Structural solutions in terms of fish ladders and the use of natural materials to construct them often raise concerns regarding the possibility of using the standard calculation methods.
Michał Kubrak   +5 more
doaj   +1 more source

Comparative Analysis of Supersonic Flow in Atmospheric and Low Pressure in the Region of Shock Waves Creation for Electron Microscopy

open access: yesSensors, 2023
This paper presents mathematical-physics analyses in the field of the influence of inserted sensors on the supersonic flow behind the nozzle. It evaluates differences in the flow in the area of atmospheric pressure and low pressure on the boundary of ...
Pavla Šabacká   +7 more
doaj   +1 more source

Application correlation algorithm to create a new critical depth equation for gradually varied flow in trapezoidal channel using teaching–learning and studying [PDF]

open access: yesJournal of Hydraulic Structures, 2020
The critical depth is a hydraulic factor of the flow, it plays a particularly important role in studying and designing for open channels, especially during identification of water surfaces and analyzing to determine the phenomenon of a hydraulic jump in ...
Nguyen Minh Ngoc   +2 more
doaj   +1 more source

Interdependent Critical Flows

open access: yesLinköping Electronic Conference Proceedings, 2023
Critical flows of goods and services, such as energy, information, transport, and food, are imperative for society's functionality. Hence, it is important to study the vulnerability of these flows and how the disruption of one may affect another. However, holistic overview and understanding of critical flows are largely lacking. It is not trivial to co-
Josefin Månefjord, Jonas Johansson
openaire   +1 more source

New empirical correlation for oil flowrate prediction through chokes [PDF]

open access: yesJournal of the Serbian Chemical Society, 2020
Accurate prediction of choke restricted multiphase flowrate is always interesting in oil industry in the absence of flowmeters for field production monitoring and management purposes.
Fuladgar Amir Masoud, Vatani Zoha
doaj   +1 more source

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