Results 31 to 40 of about 12,991 (254)

THE DEVELOPMENT OF TECHNICAL MEANS TO UPDATA, RESTORE AND TO RESERVE THE MAPS. AS APPLICATION: THE BASE MAP OF ENGINEERING COLLEGE IN DIYALA UNIVERSITY

open access: yesDiyala Journal of Engineering Sciences, 2010
A complete model of liquid-phase dispersion was used to simultaneously characterize axial and radial mixing in bubble column of 0.15 m inside diameter and plastic plate distributor with holes of 2 mm diameter.
Nada Mohammed Salih
doaj   +1 more source

Axial Dispersion in a Pulsed and Nonpulsed Disc and Doughnut Solvent Extraction Column [PDF]

open access: yes, 2017
In solvent extraction columns mechanical agitation is usually introduced to improve the extraction efficiency. However, some industrial columns have been found to have higher extraction efficiency while running with no pulsation.
Yi, H   +4 more
core   +1 more source

CFD analysis and flow model reduction for surfactant production in helix reactor [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2015
Flow pattern analysis in a spiral Helix reactor is conducted, for the application in the commercial surfactant production. Step change response curves (SCR) were obtained from numerical tracer experiments by three-dimensional computational fluid
Nikačević N.M.   +3 more
doaj   +1 more source

DISPERSION IN A TWO-PHASE FLOW SULZER COLUMN

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2023
An experimental study based on the pulse-response technique was performed in a Sulzer packed-bed column in order to establish the residence time distribution for four different liquid flow rates, namely 200, 400, 600 and 800 L/h and five different gas ...
Eugenia Teodora IACOB TUDOSE
doaj   +1 more source

Guided Waves in a Solid Rod Embedded in Infinite Medium with Weak Interface

open access: yesMATEC Web of Conferences, 2016
The dispersion relation of the infinite long rod model with a weak interface has been deduced via wave equation of the guided waves and boundary spring interface model.
Tong Zi Wei   +5 more
doaj   +1 more source

Water Infusion on the Stability of Coal Specimen under Different Static Stress Conditions

open access: yesApplied Sciences, 2020
Underground coal mines are frequently subjected to water infusion, resulting in many mining hazards. This study investigated the effect of water infusion on the stress and energy evolution characteristics of coal specimens representing isolated pillars ...
Zilong Zhou, Lihai Tan, Xin Cai
doaj   +1 more source

Application of transfer function for quick estimation of gas flow parameters—A useful model‐based approach to enhancing measurements

open access: yesEngineering Reports, 2021
At the core of chemical engineering, process design is fundamental to reach a goal of productivity. Axial dispersion is one of the key phenomena that can affect productivity.
Mirosław K. Szukiewicz, Adrian Szałek
doaj   +1 more source

Dispersion in oscillatory flows

open access: yes, 1983
The enhanced axial mixing which is caused by dispersion in oscillatory flows in some mass transfer devices may limit the reactor performance. This effect has provided the motivation for the present study in which oscillatory flow dispersion in a flat ...
Stairmand, John W., Stairmand, J. W.
core   +2 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Dynamic studies of nitrophenols sorption on perfil in a fixed-bed column

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2008
The adsorption of two substituted nitrophenols, namely 4-nitrophenol (4-NP) and 2,4-dinitrophenol (2,4-DNP), from aqueous solutions onto perfil was studied using a fixed bed column.
Zvezdelina Yaneva   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy