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Related Concept Videos

Constraints and Statical Determinacy01:26

Constraints and Statical Determinacy

In structural engineering, the equilibrium of a system is not only determined by its equations of equilibrium but also with the help of constraints. Constraints refer to restrictions on the motion of a system. The proper combinations of constraints can minimize the total number of constraints needed to maintain a system in mechanical equilibrium. When this happens, the system is said to be statically determinate. For such systems, the unknown reaction supports can be estimated using equilibrium...
Fast Decoupled and DC Powerflow01:24

Fast Decoupled and DC Powerflow

The fast decoupled power flow method addresses contingencies in power system operations, such as generator outages or transmission line failures. This method provides quick power flow solutions, essential for real-time system adjustments. Fast decoupled power flow algorithms simplify the Jacobian matrix by neglecting certain elements, leading to two sets of decoupled equations:
Conservation of Mass in Moving, Nondeforming Control Volume01:14

Conservation of Mass in Moving, Nondeforming Control Volume

Stormwater detention basins are essential in managing runoff during heavy rainfall, particularly in urban areas where impervious surfaces increase the risk of flooding. Understanding the conservation of mass in these systems allows engineers to optimize basin performance, balancing inflow, outflow, and water storage.
In the context of a detention basin, the conservation of mass states that the total mass of water entering the basin must equal the mass leaving the basin plus any accumulation of...
Frames: Problem Solving II01:26

Frames: Problem Solving II

Consider a hydraulic hoist supporting a load of 1 kN. Assuming a simplified schematic representation of this frame structure, the force acting on BD and BF members can be determined.
Pipe Flowrate Measurement: Problem Solving01:28

Pipe Flowrate Measurement: Problem Solving

A spray tank system is engineered to uniformly distribute a pest-control liquid across plants by using a pressurized mechanism. The tank, pressurized to 150 kPa, holds the pesticide at a height of 0.80 meters. Liquid flows from the tank through a 1.9 meter pipe with a diameter of 0.015 meters, angled at 0.698 radians, ultimately reaching a 0.007 meter nozzle that sprays the pesticide. Accurate calculation of the system's flow rate is crucial to ensure uniform application, and this is achieved...
Conservation of Mass in Finite Cotrol Volume01:16

Conservation of Mass in Finite Cotrol Volume

The principle of conservation of mass is a fundamental law in fluid mechanics and is applied using the continuity equation. We apply the concept to a finite control volume to derive the continuity equation.
A system is defined as a collection of unchanging contents, and the conservation of mass states that a system's mass is constant.

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Related Experiment Video

Updated: Jul 10, 2026

Calibrated Passive Sampling - Multi-plot Field Measurements of NH3 Emissions with a Combination of Dynamic Tube Method and Passive Samplers
10:29

Calibrated Passive Sampling - Multi-plot Field Measurements of NH3 Emissions with a Combination of Dynamic Tube Method and Passive Samplers

Published on: March 21, 2016

Dynamic Constrained Allocation Flux Balance Analysis (dCAFBA).

Huili Yuan1, Yang Bai2, Xiongfei Fu3

  • 1State Key Laboratory for Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China. hl.yuan@siat.ac.cn.

Methods in Molecular Biology (Clifton, N.J.)
|July 8, 2026
PubMed
Summary

This guide introduces dynamic Constrained Allocation Flux Balance Analysis (dCAFBA) to simulate bacterial coordination between metabolism and gene expression. dCAFBA helps understand bacterial adaptation to changing environments.

Keywords:
Bacterial growth lawsChanging environmentConstraint-based modelingDynamic flux balance analysis (dFBA)Metabolic flux dynamicsProteome allocation

Related Experiment Videos

Last Updated: Jul 10, 2026

Calibrated Passive Sampling - Multi-plot Field Measurements of NH3 Emissions with a Combination of Dynamic Tube Method and Passive Samplers
10:29

Calibrated Passive Sampling - Multi-plot Field Measurements of NH3 Emissions with a Combination of Dynamic Tube Method and Passive Samplers

Published on: March 21, 2016

Area of Science:

  • Microbiology
  • Computational Biology
  • Systems Biology

Background:

  • Bacterial survival hinges on coordinating metabolism and gene expression.
  • Metabolism fuels protein synthesis, while the proteome regulates metabolic pathways.

Purpose of the Study:

  • To present a practical guide for dynamic Constrained Allocation Flux Balance Analysis (dCAFBA).
  • To demonstrate dCAFBA's utility in simulating bacterial adaptation.

Main Methods:

  • Developing a computational framework integrating proteome allocation with metabolic models.
  • Providing step-by-step instructions for dCAFBA model construction, simulation, and analysis.

Main Results:

  • Demonstrated dCAFBA's effectiveness through case studies.
  • Showcased bacterial adaptation to shifts in carbon and amino acid availability.

Conclusions:

  • dCAFBA is a valuable tool for understanding bacterial metabolic and proteomic coordination.
  • This framework aids in predicting bacterial responses to environmental changes.