Results 61 to 70 of about 700,926 (305)

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

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +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

Investigating transcription factor dynamics in health and disease using FRAP

open access: yesFEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj   +3 more
wiley   +1 more source

Flow and axial dispersion simulation for traveling axisymmetric Taylor vortices

open access: yes, 1998
Numerical experiments using a finite difference method were carried out to determine the motion of axisymmetric Taylor vortices for narrow-gap Taylor vortex flow.
Rudman, M, Howes, T
core   +1 more source

Investigation of liquid phase axial dispersion in Taylor bubble flow by radiotracer residence time distribution analysis

open access: yesEPJ Web of Conferences, 2013
A gas-liquid Taylor bubble flow occurs in small diameter channels in which gas bubbles are separated by slugs of pure liquid. This type of flow regime is well suited for solid catalyzed gas-liquid reactors in which the reaction efficiency is a strong ...
Jin J.H.   +6 more
doaj   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

open access: yesFEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri   +5 more
wiley   +1 more source

Oscillatory flow and axial dispersion in packed beds of spheres

open access: yes, 2005
The effect of oscillations in the bulk flow on the axial dispersion coefficient in packed beds of spherical particles has been studied using the imperfect pulse tracer method with two probes located within the bed.
Lau, A   +3 more
core   +1 more source

Influence of design parameters on the global performances of low-speed counter-rotating axial-flow fans [PDF]

open access: yes, 2014
The present work aims at experimentally investigating the effects of some parameters on the performances of a counter-rotating stage, and on the instationary flow between the rotors.
BAKIR, Farid   +5 more
core   +1 more source

Axial mixing with spiral-shaped channel micromixer

open access: yesJournal of Fluid Science and Technology, 2015
Axial fluctuations in carrier concentrations cause detection noise during chemical analysis using flowing carrier streams. Here, we report a method of axial mixing using serially cascaded microchannel units with branches and junctions.
Nobuhiro TSUKADA   +2 more
doaj   +1 more source

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