Results 11 to 20 of about 1,645,310 (285)

Residence Time Distribution (RTD) Applications in Continuous Casting Tundish: A Review and New Perspectives

open access: yesMetals, 2022
The continuous casting tundish is a very important metallurgical reactor in continuous casting production. The flow characteristics of tundishes are usually evaluated by residence time distribution (RTD) curves.
Ziming Wang   +5 more
doaj   +1 more source

Warm upsetting tests with cylindrical molybdenum and wolfram samples

open access: yesZaštita Materijala, 2017
The resistance of a modern ceramic material - silicon nitride - was examined by cyclical high temperature and compressive loads by the use of warm upsetting tests at cylindrical molybdenum and wolfram samples.
Vyacheslav Goryany   +2 more
doaj   +1 more source

Technical note: Statistical generation of climate-perturbed flow duration curves [PDF]

open access: yesHydrology and Earth System Sciences, 2023
Assessing the robustness of a water resource system's performance under climate change involves exploring a wide range of streamflow conditions. This is often achieved through rainfall–runoff models, but these are commonly validated under historical ...
V. Yildiz   +3 more
doaj   +1 more source

Calibration of hydrological models using flow-duration curves [PDF]

open access: yesHydrology and Earth System Sciences, 2011
The degree of belief we have in predictions from hydrologic models will normally depend on how well they can reproduce observations. Calibrations with traditional performance measures, such as the Nash-Sutcliffe model efficiency, are challenged by ...
I. K. Westerberg   +7 more
doaj   +1 more source

On Area-preserving and Length-preserving Nonlocal Flow of Convex Closed Plane Curves [PDF]

open access: yes, 2015
For any $\alpha>0,$ we study $k^{\alpha}$-type length-preserving and area-preserving nonlocal flow of convex closed plane curves and show that these two types of flow evolve such curves into round circles in $C^{\infty}% $-norm.$\ $Other relevant $k ...
Tsai, Dong-Ho, Wang, Xiao-Liu
core   +1 more source

Active flows on curved surfaces [PDF]

open access: yesPhysics of Fluids, 2021
We consider a numerical approach for a covariant generalized Navier–Stokes equation on general surfaces and study the influence of varying Gaussian curvature on anomalous vortex-network active turbulence. This regime is characterized by self-assembly of finite-size vortices into linked chains of anti-ferromagnet order, which percolate through the ...
M. Rank, A. Voigt
openaire   +2 more sources

X-Ray Microlensing of Bright Quasars [PDF]

open access: yes, 2000
We calculated the expected microlens light curves for several accretion-flow models and compared the results to find what aspects of distinct flow structures can be extracted from the microlens light curves.
Chang   +6 more
core   +3 more sources

Rheological Characterization of Polyanionic Cellulose Solutions with Application to Drilling Fluids and Cuttings Transport Modeling

open access: yesApplied Rheology, 2018
In petroleum drilling, aqueous Polyanionic Cellulose solutions (PAC) are often used as a drilling fluid model system in experimental laboratory studies to investigate cuttings transport.
Busch Alexander   +5 more
doaj   +1 more source

Flow Duration Curves (FDC) for Selected Mountain Catchments in Slovakia. [PDF]

open access: yesAerul şi Apa: Componente ale Mediului, 2023
The article presents the characteristics of the Flow Duration Frequency (FDC) curve statistics of the Hornád River and its tributaries for a period of 60 years (1961-2020) and compares the flow duration curves divided into decades (1961-1970, 1971-1980 ...
Katarzyna KUBIAK-WÓJCICKA   +2 more
doaj   +1 more source

Yield Stress of Emulsions and Suspensions as Measured in Steady Shearing and in Oscillations

open access: yesApplied Rheology, 2008
The yield stresses of five samples (two highly concentrated emulsions, two Kaolin dispersions and mayonnaise) were determined in two ways. In one case, steady shear experiments were performed over a range of incrementally decreasing shear rates.
Masalova I., Malkin A.Ya., Foudazi R.
doaj   +1 more source

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