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  2. Coalescence (physics) - Wikipedia

    en.wikipedia.org/wiki/Coalescence_(physics)

    Coalescence of ultrasound contrast agent microbubbles is studied to prevent embolies [1] or to block tumour vessels. [2] Microbubble coalescence has been studied with the aid of high-speed photography. [3] In cloud physics the main mechanism of collision is the different terminal velocity between the droplets. The terminal velocity is a ...

  3. All India Senior School Certificate Examination - Wikipedia

    en.wikipedia.org/wiki/All_India_Senior_School...

    In Academic Year (2021–2022) Central Board of Secondary Education (CBSE) Announced That Board Examinations of Class 10th and 12th will be conducted in two terms, the first term in November–December 2021 and second term in April–March 2022.

  4. Coalescence - Wikipedia

    en.wikipedia.org/wiki/Coalescence

    Coalescence (chemistry), the process by which two or more separate masses of miscible substances seem to "pull" each other together should they make the slightest contact; Coalescence (physics), the merging of two or more droplets, bubbles or particles into one; Coalescer, device which induces coalescence in a medium

  5. Coalescer - Wikipedia

    en.wikipedia.org/wiki/Coalescer

    An alternative to this type of coalescer is a flow through pre-coalescer that is installed upstream in a separator tank. In the Compact Electrostatic Coalescer, [2] droplet coalescence is achieved by applying AC electric fields (50–60 Hz) to water-in-oil emulsions under turbulent-flow conditions. The turbulence increases the collision ...

  6. Smoluchowski coagulation equation - Wikipedia

    en.wikipedia.org/wiki/Smoluchowski_coagulation...

    This diagram describes the aggregation kinetics of discrete particles according to the Smoluchowski aggregation equation. In statistical physics, the Smoluchowski coagulation equation is a population balance equation introduced by Marian Smoluchowski in a seminal 1916 publication, [1] describing the time evolution of the number density of particles as they coagulate (in this context "clumping ...

  7. Coalescent theory - Wikipedia

    en.wikipedia.org/wiki/Coalescent_theory

    Coalescent theory is a model of how alleles sampled from a population may have originated from a common ancestor.In the simplest case, coalescent theory assumes no recombination, no natural selection, and no gene flow or population structure, meaning that each variant is equally likely to have been passed from one generation to the next.

  8. Emulsion - Wikipedia

    en.wikipedia.org/wiki/Emulsion

    Coalescence occurs when droplets bump into each other and combine to form a larger droplet, so the average droplet size increases over time. Emulsions can also undergo creaming, where the droplets rise to the top of the emulsion under the influence of buoyancy, or under the influence of the centripetal force induced when a centrifuge is used. [12]

  9. All India Secondary School Examination - Wikipedia

    en.wikipedia.org/wiki/All_India_Secondary_School...

    All India Secondary School Examination, commonly known as the class 10th board exam, is a centralized public examination that students in schools affiliated with the Central Board of Secondary Education, primarily in India but also in other Indian-patterned schools affiliated to the CBSE across the world, taken at the end of class 10. The board ...