Results 41 to 50 of about 18,449,103 (185)

Dataset for the simulated biomass pyrolysis in rotary kilns with varying particle residence time distributions

open access: yesData in Brief, 2021
Slow pyrolysis of biomass is commonly performed in rotary kilns. The effect of the particle residence time distribution on biomass conversion is often neglected when numerically modeling such systems.
Mario Pichler   +4 more
doaj   +1 more source

The distribution of range sizes of native and alien plants in four European countries and the effects of residence time [PDF]

open access: yes, 2008
Aim Do the statistical distributions of range sizes of native and alien species differ? If so, is this because of residence time effects? And can such effects indicate an average time to a maximum?
Stout, J.C.   +23 more
core   +1 more source

Does residence time affect responses of alien species richness to environmental and spatial processes? [PDF]

open access: yes, 2012
One of the most robust emerging generalisations in invasion biology is that the probability of invasion increases with the time since introduction (residence time). We analysed the spatial distribution of alien vascular plant species in a region of north-
Dainese,Matteo   +5 more
core   +1 more source

Residence time distribution for a class of Gaussian Markov processes [PDF]

open access: yesPhysical Review E, 1999
We study the distribution of residence time or equivalently that of ``mean magnetization" for a family of Gaussian Markov processes indexed by a positive parameter $α$. The persistence exponent for these processes is simply given by $θ=α$ but the residence time distribution is nontrivial. The shape of this distribution undergoes a qualitative change as
Dhar, Abhishek, Majumdar, Satya N
openaire   +3 more sources

Residence time distribution measurements in an external-loop airlift reactor: Study of the hydrodynamics of the liquid circulation induced by the hydrogen bubbles [PDF]

open access: yes, 2011
A detailed study of the residence time distribution (RTD) analysis of liquid phase has been performed in an external-loop airlift reactor of 20 L nominal volume, regarded as a global unit and discriminating its different sections (riser, gas–liquid ...
A.H. Essadki   +7 more
core   +1 more source

Residence time distribution and flow pattern modeling of oilseeds in a pilot screw press☆

open access: yesOilseeds and fats, crops and lipids, 2020
Mechanical expression is widely applied for oil recovery from oilseeds using continuous screw presses. Despite significant recent advances in the field of press design and automation, it remains difficult to predict the press performances based on the ...
Bogaert Laurine   +2 more
doaj   +1 more source

Material Transport Characteristics in Planetary Roller Melt Granulation

open access: yesPharmaceutics, 2023
Melt granulation for improving material handling by modifying particle size distribution offers significant advantages compared to the standard methods of dry and wet granulation in dust reduction, obviating a subsequent drying step. Furthermore, current
Tom Lang   +3 more
doaj   +1 more source

Design and Development of Mathematical Model for Static Mixer [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2016
A numerical model for simulating Residence Time Distribution (RTD) of turbulent flows in helical static mixers is proposed and developed to improve the understanding of static mixers.
Akila Rajamanickam, Krishnaswamy Balu
doaj  

An attainable region perspective on the role of residence time distribution in ball milling

open access: yesSouth African Journal of Chemical Engineering, 2020
The effect of material flow through a ball mill on the efficient production of particles was explored using the attainable region framework. The target efficiency was the production of floatable particles of size between 300 μm and 75 μm upon expending ...
François K. Mulenga
doaj   +1 more source

Modeling of residence time distribution in regrinding Vertimill

open access: yesMinerals Engineering, 2013
Abstract The regrinding stage is necessary to achieve the particle size (liberation) for the final upgrade in the cleaning flotation process. At present, vertical stirred mills are increasingly employed at industrial scale. The regrinding process characterization requires mixing regime knowledge along with the mean residence time of the liquid and ...
Yianatos, J.   +3 more
openaire   +3 more sources

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