Flow Control System

A flow control system regulates the movement of fluids or gases by managing variables such as flow rate, pressure, and direction, making it essential for precise and repeatable bioengineering processes. It typically combines pumps, valves, tubing, sensors, and control software, using measurements from the flowing medium to adjust fluid delivery through feedback or programmed control. In bioengineering, these systems support microfluidic devices, cell culture platforms, bioreactors, drug-delivery studies, and tissue-engineering models. Accurate flow control helps maintain stable chemical and mechanical conditions, improves experimental reproducibility, and enables researchers to study how cells and tissues respond to controlled fluid environments.

Flow Control System - Related Videos

Education

JoVE Core - Electrical Engineering

Control of Power Flow

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2024

There are several methods to control power flow in power systems: Prime mover and excitation control of generators Switching of shunt capacitor banks, shunt reactors, and static var systems Control of tap-changing and regulating transformers A simple generator in the system is represented by its Thevenin equivalent circuit, which represents its model operating under balanced steady-state conditions. The key parameters include the generator terminal voltage Vt, the excitation voltage Eg,...

Research

JoVE Journal - Medicine

Quality-Controlled Sputum Analysis by Flow Cytometry

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Cited by 5 •

2021

This protocol describes an efficient method for dissociating sputum into a single cell suspension and the subsequent characterization of cellular subsets on standard flow cytometric platforms.

Porphyrin-Modified Beads for Use as Compensation Controls in Flow Cytometry

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2023

The protocol describes how porphyrin-based compensation beads for flow cytometry are prepared by the reaction of amine-functionalized polystyrene beads with the porphyrin TCPP and the amide coupling reagent EDC. A filtration procedure is used to reduce the particulate byproducts.

Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions

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Cited by 2 •

2018

The rectification of ion transport pathways is an effective method to generate one-directional ion-dragged electrohydrodynamic flows. By setting an ion-exchange membrane in a flow channel, an electrically polarized condition is generated and causes a liquid flow to be driven when an electric field is externally applied.

Parameterizing V-notch Weir Equations for Flow Monitoring in a Drainage Control Structure

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2025

This protocol describes methods for obtaining weir flow equation coefficients for a V-notch weir within a drainage control structure using (1) a laboratory calibration procedure and (2) an online tool, the "Weir Flow Equation Coefficients Calculator", developed by the authors. These methods apply to flows contained within the V-notch and overtopping flows.

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