Results 11 to 20 of about 8,379,511 (292)

Modelling of elevated mesoscale convective systems [PDF]

open access: yes, 2012
Elevated convection occurs when convection originates from above the boundary layer. The interaction of an elevated storm with the stable layer beneath it often generates features such as waves and bores that maintain the convection.
White, Bethan Alice
core   +6 more sources

Influence of Different Hemodialysis Biocontrols on the Achievement of the Convective Volume.

open access: yesBlood Purif
<p>Introduction: Post-dilution on-line hemodiafiltration (OL-HDF) has been shown to reduce all-cause mortality in hemodialysis (HD) patients when high substitution volumes are achieved. To date, little emphasis has been placed on the impact of different biocontrols in achieving high replacement volumes. The aim of the present study was to compare
Muñoz Ramos P   +13 more
europepmc   +3 more sources

OPTIMIZED CONVECTIVE VOLUME IN ONLINE HEMODIAFILTRATION

open access: yesLékař a technika - Clinician and Technology, 2021
Hemodiafiltration (HDF) adds convective elimination of middle molecules (MM), proportional to filtered volume (Vconv) on the top of diffusion-based elimination of small molecules (SM) by conventional hemodialysis (HD). Studies, both observational and randomized controlled ones, performed so far generally indicated positive impact of higher Vconv on all-
František Lopot, Vratislav Fabián
openaire   +2 more sources

The Discrete Duality Finite Volume Method for Convection-diffusion Problems [PDF]

open access: yesSIAM Journal on Numerical Analysis, 2010
In this paper we extend the discrete duality finite volume (DDFV) formulation to the steady convection-diffusion equation. The discrete gradients defined in DDFV are used to define a cell-based gradient for the control volumes of both the primal and dual meshes, in order to achieve a higher-order accurate numerical flux for the convection term.
Yves Coudière, Gianmarco Manzini
openaire   +3 more sources

Assessment of dialyzer surface in online hemodiafiltration; objective choice of dialyzer surface area

open access: yesNefrología (English Edition), 2015
Introduction: Online haemodiafiltration (OL-HDF) is most effective technique; several randomised studies and meta-analyses have shown a reduction in mortality, with a directly related association with convective volume.
Francisco Maduell   +11 more
doaj   +1 more source

A Finite-Volume Method for Convection Problems with Embedded Moving-Boundaries [PDF]

open access: yes, 2009
An accurate method, using a novel immersed-boundary approach, is presented for numerically solving linear, scalar convection problems. Moving interior boundary conditions are embedded in the fixed-grid fluxes in the direct neighborhood of the moving boundaries. Tailor-made limiters are derived such that the resulting scheme is monotone.
Y.J. Hassen (Yunus), B. Koren (Barry)
openaire   +3 more sources

The convective storm initiation project [PDF]

open access: yes, 2007
Copyright @ 2007 AMSThe Convective Storm Initiation Project (CSIP) is an international project to understand precisely where, when, and how convective clouds form and develop into showers in the mainly maritime environment of southern England.
Ladd, DN   +185 more
core   +1 more source

Heat transfer improvement between a pair of heater and cooler inside an energy storage by using nano-encapsulated phase change material/water: A numerical modeling

open access: yesCase Studies in Thermal Engineering, 2022
In the present study, the natural convection flow of water with Nano-encapsulated phase change material (NPCM) was simulated inside an insulated chamber, which a pair of pipes were considered as a heater and cooler sources with the boundary condition of ...
Yan Cao   +7 more
doaj   +1 more source

Optimisation of dialysate flow in on-line hemodiafiltration

open access: yesNefrología (English Edition), 2015
Introduction: Currently, on-line hemodiafiltration (OL-HDF) is the most effective technique. Several randomised studies and meta-analyses have shown a reduced mortality and a direct association with convective volume has been reported. At present, it has
Francisco Maduell   +11 more
doaj   +1 more source

Convective inhibition beneath an upper-level PV anomaly [PDF]

open access: yes, 2008
Copyright @ 2008 Royal Meteorological SocietyUpper-level potential-vorticity (PV) anomalies reduce the convective stability of the troposphere through their impact on the vertical potential-temperature profile, thus reducing convective inhibition (CIN ...
Norton, E. G.   +14 more
core   +1 more source

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