Results 51 to 60 of about 18,449,103 (185)

Effect of Scale-Up on Residence Time and Uranium Extraction on Annular Centrifugal Contactors (ACCs)

open access: yesSeparations, 2023
This work reports the effect of scaling up annular centrifugal contactors (ACCs) upon the residence time distribution and the efficiency of extraction of uranium.
Alastair Baker   +4 more
doaj   +1 more source

The Influence of Residence Time Distribution on Continuous-Flow Polymerization [PDF]

open access: yes, 2019
Continuous-flow chemistry is emerging as an enabling technology for the synthesis of precise polymers. Recent advances in this rapidly growing field have hastened a need for a fundamental understanding of how fluid dynamics in tubular reactors influence ...
Frank A. Leibfarth (675326)   +11 more
core   +1 more source

Potential distribution range of invasive plant species in Spain [PDF]

open access: yes, 2012
Success of invasive species has been frequently estimated as the present distribution range size in the introduced region. However, the present distribution range is only a picture of the invasion for a given time step and do not inform on the potential ...
Gassó, Núria   +13 more
core   +1 more source

Experimental simulation of salt transport in hierarchically nested groundwater flow systems

open access: yes地质科技通报, 2022
Groundwater age and groundwater residence time contain important information about groundwater circulation and evolutionary processes, and have been widely used in the study of groundwater circulation patterns in basins.In this paper, we simulated a ...
Hong Niu   +5 more
doaj   +1 more source

Preparation and application of macromolecules with a fluorescence effect in polymer processing

open access: yesDesigned Monomers and Polymers, 2019
In this study, 9-anthracenemethyl methacrylate (AMMA) and styrene (St) as monomers and benzoyl peroxide as an initiator were used to synthesize P(St-co-AMMA), a macromolecule tracer with a fluorescence effect, via free radical copolymerization.
Meng-Di Chen   +4 more
doaj   +1 more source

Mathematical Modeling and Design of Parboiled Paddy-Impinging Stream Dryer Using the CFD-DEM Model

open access: yesFoods
Impinging stream dryers (ISDs) are effective for removing moisture from particulate materials because of the complex multiphase transport of air particles in ISDs.
Thanit Swasdisevi   +2 more
doaj   +1 more source

Design and optimization of electrochemical microreactors for continuous electrosynthesis [PDF]

open access: yes, 2012
The study focuses on the design and construction, as well as the theoretical and experimental optimization of electrochemical filter press microreactors for the electrosynthesis of molecules with a high added value.
Reynes, Olivier   +9 more
core   +1 more source

A one dimensional model for the prediction of extraction yields in a two phases modified twin-screw extruder [PDF]

open access: yes, 2002
Solid/liquid extraction is performed on raw plant substrate with a modified twin-screw extruder (TSE) used as a thermo-mecanochemical reactor. Visual observations and experimental residence time distributions (RTD) are used to develop a solid transport ...
Prat, Laurent E.   +4 more
core   +1 more source

A New Approach for Modelling Residence Time Distribution in a Co-rotating Twin Screw Extruder

open access: yesCHIMIA, 2001
A model to determine the residence time distribution (RTD) in a co-rotating twin screw extruder is proposed. The method couples a thermomechanical approach with a chemical engineering approach and allows us to obtain the RTD without a fitting ...
Arnaud Poulesquen   +3 more
doaj  

Residence time distribution

open access: yes, 2020
U ovom radu istraživala se raspodjela vremena zadržavanja (RVZ) u tri različite cijevi, ravnoj cijevi, cijevi sa staklenim kuglicama te spiralnoj cijevi koje opisuju hidrodinamiku strujanja u različitim tipovima cijevnih reaktora.
Ružman, Sandra
core   +3 more sources

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