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For example, Pluto, whose orbit is highly inclined to the essentially matching plane of the planets, has maximum elongation much less than 180° at opposition. The six-word term “maximum apparent elongation from the sun” provides a fuller definition of elongation. The angular distance between two celestial bodies as seen from a third. Elongation is normally conceived as a measure of the angle formed between the Sun and a celestial body, such as a planet or the Moon, with Earth at the vertex.
Does shape affect tensile strength?
The short answer is that it depends on the tensile property and the characteristics of the material being tested. For a given cross-sectional area and for any gauge length, different specimen geometries have no effect on the ultimate tensile strength and the yield strength of standard materials.
C | Elongation rates can also be measured by determining nascent transcription after wash-out of inhibitory drugs; the distance travelled by the ‘emerging wave’ of newly released productive Pol II within a period of time is indicative of the elongation rate. Elongation at Break, also known as fracture strain or tensile elongation at break, is the ratio between increased length and initial length after breakage of the tested specimen at a controlled temperature. It is related to the ability of a plastic specimen to resist changes of shape without cracking. Elongation at break also called “fracture strain” or “tensile elongation at break” is the percentage increase in length that material will achieve before breaking.
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In terms of the celestial sphere, elongation is the distance between the Sun and the body as measured in degrees of celestial longitude. When the body lies on a direct line drawn from Earth to or through the Sun, its elongation is 0° and it is said to be in conjunction .
Since an inferior planet is well within the area of Earth’s orbit around the Sun, observation of its Elongation should not pose that much a challenge (compared to deep-sky objects, for example). When a planet is at its greatest elongation, it appears farthest from the Sun as viewed from Earth, so its apparition is also best at that point. Large deflections in flexible pipes can lead to buckling when critical loads are reached. A five percent decrease in mean vertical diameter of a flexible pipe is acceptable but it can deflect up to 20 percent before failure occurs. Percent elongation can be measured as change in diameter divided by original diameter multiplied by 100. Correct sample preparation is critical when testing silicone materials for specific physical properties.
Scientific definitions for elongation
Low residuals of manganese and chromium can be achieved by melting larger quantities of pig iron, a charge material which is usually more expensive than scrap steel. A material with high ductility means it’s more likely to deform (but not break!). Low ductility indicates that it’s brittle and will fracture easily under a tensile load. DisclaimerAll content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only.
- When it lies on the opposite side of Earth from the Sun with an elongation of 180°.
- Our global footprint enables us to serve more than 225,000 customer locations and gives us extensive access to research laboratories and scientists in more than 180 countries.
- The following film provides relatable examples on Tensile, Tear and Elongation, details on test preparation and finally the methods in which NuSil® silicones are actually tested.
- High-throughput techniques enable advances in the roles of DNA and RNA secondary structures in transcriptional and post-transcriptional gene regulation.
- Flexible vinyl adhesive means an aerosol adhesive designed to bond flexible vinyl to substrates.
Sue is active in the community serving on the Industrial Development Board presently and earning several business awards over the years. She is also on the Dale Chambers Foundation board that raises money for local charities in the community. Sometimes elongation may instead refer to the angular distance of a moon of another planet from its central planet, for instance the angular distance of Io from Jupiter. Here we can also talk about greatest eastern elongation and greatest western elongation.
elongation
Designers often stretch tape along the contours of the body to create the design they want and indicate changes that need to be made. Last year, peak bloom occurred just four days after the peduncle elongation stage because of exceptionally warm temperatures in the 70s and 80s. And forced bacteria to survive only by using this particular ancient elongation protein.
- Most often using test method ASTM D412, a common test for strip samples of rubber and elastomers.
- It’s a form of communication when designing and developing the body of a new vehicle.
- Subsequently, Pol II advances to the pause site, where it is stabilized by pausing factors , such as negative elongation factor and DRB-sensitivity-inducing factor .
- When an inferior planet is visible after sunset, it is near its greatest eastern elongation.
- Avantor®, a Fortune 500 company, is a leading global provider of mission-critical products and services to customers in the biopharma, healthcare, education & government, and advanced technologies & applied materials industries.
Look up any word in the dictionary offline, anytime, anywhere with the Oxford Advanced Learner’s Dictionary app. View a wide range of polymers with high elongation performance, analyze technical data of each product, get technical assistance or request samples. Ultimate elongation values of several hundred percent are common for elastomers and film/packaging polyolefins. Britannica celebrates the centennial of the Nineteenth Amendment, highlighting suffragists and history-making politicians. Nl.bab.la needs to review the security of your connection before proceeding. More examples If you’re stiff, concentrate on static stretching – a slow elongation of the muscles – holding for 15 to 30 seconds. The angular distance of a planet from the sun; as, the elongation of Venus or Mercury.
High Strength Silicone
A | Inactive transcription start sites at enhancers and genes are often occupied by nucleosomes. B | Nucleosomes are pushed aside in response to external signalling events and the recruitment of transcription factors that work with nucleosome remodellers and modifiers. C | Upon binding of the general transcription machinery at the TSSs, Pol II is recruited, initiated and phosphorylated at Ser5, which promotes transcription initiation. Subsequently, Pol II advances to the pause site, where it is stabilized by pausing factors , such as negative https://accounting-services.net/ factor and DRB-sensitivity-inducing factor . This results in the activation of P-TEFb, which phosphorylates pausing factors and the carboxy-terminal domain of Pol II, leading to Pol II pause release and progression into a phase of productive elongation. This results in mRNA synthesis at the gene, and production of enhancer RNAs at the enhancer . RNA polymerase II elongation rate throughout a gene a | The density of RNA polymerase II and the elongation rates it achieves are not constant, but can vary throughout the gene, as exemplified by a schematic representation of a hypothetical gene.
Click the links below for details on how to properly prepare your samples. The NuSil® brand is proud to present a film series on the key physical properties of silicone. Understanding both the properties and how they are tested is critical to determining the right silicone for your application. The following film provides relatable examples on Tensile, Tear and Elongation, details on test preparation and finally the methods in which NuSil® silicones are actually tested. The key physical properties of Tensile, Tear and Elongation are explained with relatable examples in this short film, narrated by Anne Groff, Manager of the NuSil® Analytics Department.
Elongation means the ratio of the extension of a material to the length of the material prior to the extension . “Extension ” means the change in length of a material due to stretching .
What affects elongation?
Factors Affecting Elongation at Yield
Velocity of Testing – Slow testing allows for polymer relaxation and higher elongation values. Orientation Level of Fibers – Fibers that are less oriented tend to exhibit greater degrees of elongation. Temperature – In general, the elongation increases with an increase in …
This affects many masking applications, for instance, so the elongation needs to be good in order for the adhesive to withstand the cold. Similarly, if the adhesive can stretch while it’s being applied to a surface, it helps the applicator to be able to mask small corners. These tough to reach spots are important to mask so they don’t get exposed during the painting process. “Ductility” is a measure of a material’s ability to undergo significant deformation before rupture or breaking. These example sentences are selected automatically from various online news sources to reflect current usage of the word ‘elongation.’ Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors.