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Design Example: Strain Gauge Bridge or Wheatstone Bridge01:15

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The utilization of strain gauges as transducers for converting mechanical strain into electrical signals is a common practice in various engineering applications. These strain gauges are frequently integrated into Wheatstone bridge circuits to accurately measure parameters such as force or pressure. Within this context, each element within the circuit exhibits a resistance that undergoes subtle variations when subjected to mechanical strain. The primary objective is to convert minuscule...
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Factorial Analysis is an experimental design that applies Analysis of Variance (ANOVA) statistical procedures to examine a change in a dependent variable due to more than one independent variable, also known as factors. Changes in worker productivity can be reasoned, for example, to be influenced by salary and other conditions, such as skill level. One way to test this hypothesis is by categorizing salary into three levels (low, moderate, and high) and skills sets into two levels (entry level...
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Multiobjective strain design: A framework for modular cell engineering.

Sergio Garcia1, Cong T Trinh1

  • 1Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN, 37996 United States; Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN, United States.

Metabolic Engineering
|September 12, 2018
PubMed
Summary
This summary is machine-generated.

Developing optimal microbial strains for industrial molecule production is challenging. A new modular cell design approach and software (ModCell2) accelerate this process by systematically optimizing cellular metabolism for efficient production.

Keywords:
Modular cellModular cell engineeringModular designModularityMultiobjective evolutionary algorithmsMultiobjective optimizationProduction modules

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Area of Science:

  • Synthetic biology
  • Metabolic engineering
  • Computational biology

Background:

  • Cellular metabolism offers vast potential for molecule production.
  • Industrial strain development is laborious and costly, hindering efficiency.

Purpose of the Study:

  • To accelerate microbial strain engineering for industrial molecule production.
  • To develop a computational tool for designing modular cellular systems.

Main Methods:

  • Formulated modular cell design as a multiobjective optimization problem.
  • Developed algorithms and a software package (ModCell2).
  • Utilized mass balance principles for flexible design objectives.

Main Results:

  • ModCell2 systematically identifies genetic modifications for optimal modular cell design.
  • Designed modular cells demonstrated minimal tradeoffs between modularity, performance, and robustness.
  • Revealed diverse metabolic architectures for efficient modular molecule production.

Conclusions:

  • ModCell2 is a powerful tool for guiding modular cell engineering.
  • The study provides insights into modular design principles for biological systems.
  • Accelerated development of high-performance microbial cell factories is achievable.