Results 11 to 20 of about 11,560,181 (351)

Mathematical Modeling of Propylene Polymerization with Ziegler-Natta Catalyst and Hydrogen Response Validation [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2020
< p>Hydrogen in spite of having a chain transfer agent role is one of the most important factors which directly affecting on kinetic of propylene polymerization.
Gholam Hossain Varshouee   +3 more
doaj   +1 more source

Determination of Optimal Reaction Temperature and Hydrogen Amount for Propylene Polymerization by a Mathematical Model [PDF]

open access: yesKemija u Industriji, 2019
Regarding the complexity of Ziegler-Natta catalyst kinetics in polypropylene polymerization, so far, there is no adequate model to determine the best process conditions for predicting average molecular weight and dispersity as the most crucial final ...
Gholam Hossain Varshouee   +3 more
doaj   +1 more source

Dynamic model for simulating transient behaviour of rotary drum granulation loop [PDF]

open access: yesModeling, Identification and Control, 2020
In this paper, a dynamic model for a rotary drum granulation loop with external product separator is developed. A population balance is used to capture dynamic particle size distribution in the 3-compartment rotary drum granulator model.
Ludmila Vesjolaja   +2 more
doaj   +1 more source

Numerical Methods for the Solution of Population Balance Equations Coupled with Computational Fluid Dynamics.

open access: yesAnnual Review of Chemical and Biomolecular Engineering, 2020
This review article discusses the solution of population balance equations, for the simulation of disperse multiphase systems, tightly coupled with computational fluid dynamics.
M. Shiea   +3 more
semanticscholar   +1 more source

Balancing selection in self‐fertilizing populations [PDF]

open access: yesEvolution, 2021
Self-fertilization commonly occurs in hermaphroditic species, either occasionally or as the main reproductive mode. It strongly affects the genetic functioning of a population by increasing homozygosity and genetic drift and reducing the effectiveness of recombination.
openaire   +3 more sources

Modeling and Simulation of Kuhni Extraction Column Using a Rate-based Model [PDF]

open access: yesIranian Journal of Oil & Gas Science and Technology, 2016
In this study, liquid-liquid extraction process in a Kuhni extraction column was modeled and simulated. A non-equilibrium dynamic model was developed for modeling liquid-liquid extraction processes based on a rate-based model.
Amir Hosein Tahershamsi   +2 more
doaj   +1 more source

Projecting the future of Ayapel Cienaga: a hydroecologic analysis under climate change scenarios

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2020
We developed a three-component model to evaluate the present and future hydrological behavior of Ayapel Cienaga under different scenarios of climate variability and human intervention associated with fishing and mining activities and the maintenance of ...
Juan Pablo Serna-López   +1 more
doaj   +1 more source

A Spatial Optimization Approach for Simultaneously Districting Precincts and Locating Polling Places

open access: yesISPRS International Journal of Geo-Information, 2020
Voting is the most basic form of political participation. The agencies that are responsible for voting must delineate precincts and designate a polling place for each precinct.
Kamyoung Kim
doaj   +1 more source

On the Adequacy of Some Low-Order Moments Method to Simulate Certain Particle Removal Processes

open access: yesColloids and Interfaces, 2021
The population balance is an indispensable tool for studying colloidal, aerosol, and, in general, particulate systems. The need to incorporate spatial variation (imposed by flow) to it invokes the reduction of its complexity and degrees of freedom.
Margaritis Kostoglou   +1 more
doaj   +1 more source

Quadrature-based moment methods for the population balance equation: An algorithm review

open access: yesChinese Journal of Chemical Engineering, 2019
The dispersed phase in multiphase flows can be modeled by the population balance model (PBM). A typical population balance equation (PBE) contains terms for spatial transport, loss/growth and breakage/coalescence source terms.
Dongyue Li, Zhipeng Li, Zhengming Gao
semanticscholar   +1 more source

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