Percent Elongation
Percent Elongation - Related Videos
02:35
Transcription Elongation Factors
0 Views •
2020
Transcription elongation is a dynamic process that alters depending upon the sequence heterogeneity of the DNA being transcribed. Hence, it is not surprising that the elongation complex's composition also varies along the way while transcribing a gene. The transcription elongation is regulated via pausing of RNA polymerase on several occasions during transcription. In bacteria, these halts are necessary because the transcription of DNA into mRNA is coupled to the translation of that mRNA into a...
02:35
Transcription Elongation Factors
0 Views •
2023
Transcription elongation is a dynamic process that alters depending upon the sequence heterogeneity of the DNA being transcribed. Hence, it is not surprising that the elongation complex's composition also varies along the way while transcribing a gene. The transcription elongation is regulated via pausing of RNA polymerase on several occasions during transcription. In bacteria, these halts are necessary because the transcription of DNA into mRNA is coupled to the translation of that mRNA into a...
10:46
Novel Metrics to Characterize Embryonic Elongation of the Nematode Caenorhabditis elegans
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Cited by 3 •
2016
Here we detail protocols specifically designed to monitor morphogenic defects that occur during early and late phases of embryonic elongation of the nematode Caenorhabditis elegans. Ultimately, these protocols are designed to identify genes that regulate these phases and to characterize their differential requirements along the antero-posterior axis of the embryo.
07:30
Determining the Mass Percent Composition in an Aqueous Solution
0 Views •
2023
Source: Laboratory of Dr. Neal Abrams — SUNY College of Environmental Science and Forestry Determining the composition of a solution is an important analytical and forensic technique. When solutions are made with water, they are referred to as being aqueous, or containing water. The primary component of a solution is referred to as the solvent, and the dissolved minor component is called the solute. The solute is dissolved in the solvent to make a solution. Water is the most common solvent in...
02:48
Bond Polarity, Dipole Moment, and Percent Ionic Character
0 Views •
2020
Bond Polarity The absolute value of the difference in electronegativity (ΔEN) of two bonded atoms provides a rough measure of the polarity to be expected in the bond and, thus, the bond type. When the difference is very small or zero, the bond is covalent and nonpolar. When it is large, the bond is polar covalent or ionic. The absolute values of the electronegativity differences between the atoms in the bonds H–H, H–Cl, and Na–Cl are 0 (nonpolar), 0.9 (polar covalent), and 2.1 (ionic),...
FAQs
The calculation compares the increase in a specimen’s gauge length with its original gauge length and expresses that ratio as a percentage. During the test, controlled tensile loading continues until fracture, allowing the measurement to capture the total stretching that occurred over the defined gauge region. This makes results comparable across tested materials.
A high value signals that the specimen can undergo substantial plastic deformation before breaking, while a low value is associated with fracture after little stretching. Engineers therefore use the result as an indicator of ductility and as a way to distinguish materials likely to tolerate deformation from those that may fail with limited shape change.
A change in Percent Elongation after processing or environmental exposure shows that those conditions affected the material’s mechanical behavior. The value can therefore serve as a comparison between material states, helping engineers identify whether a treatment or environment is associated with more stretching before fracture or with fracture occurring after less deformation.
A specimen’s original gauge length is recorded before loading. The specimen is then pulled under controlled tensile loading until it fractures. After the test, the increase in gauge length is determined and expressed relative to the original length as a percentage. This sequence links the numerical result to the deformation experienced during the test.
Because forming operations require materials to accommodate shape change, engineers can use the measured value to compare candidate materials for manufacturing suitability. A larger amount of stretching before fracture may support selection for operations involving deformation, whereas limited elongation can signal less tolerance for such processing. The result provides a material-performance criterion rather than a description of the forming process itself.
In quality control, Percent Elongation supplies a numerical basis for comparing material performance across tensile-tested specimens. Engineers can use differences in the measured percentage to identify changes in ductile behavior and to judge whether material performance remains consistent with the intended application. Its value is especially practical when evaluating whether a material stretches sufficiently or fractures with little deformation.