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In materials science, the sessile drop technique is a method used for the characterization of solid surface energies, and in some cases, aspects of liquid surface energies. [1] The main premise of the method is that by placing a droplet of liquid with a known surface energy and contact angle , the surface energy of the solid substrate can be ...
Blue mussels, Mytilus edulis, are sessile and exhibit clumping. Clumping is a behavior in sessile organisms in which individuals of a particular species group closely to one another for beneficial purposes, as can be seen in coral reefs and cochineal populations. This allows for faster reproduction and better protection from predators.
In Wenzel state, adding surface roughness will enhance the wettability caused by the chemistry of the surface. The Wenzel correlation can be written as = where θ m is the measured contact angle, θ Y is the Young contact angle and r is the roughness ratio. The roughness ratio is defined as the ratio between the actual and projected ...
Sessility, or sessile, may refer to: Sessility (motility), organisms which are not able to move about; Sessility (botany), flowers or leaves that grow directly from the stem or peduncle of a plant; Sessility (medicine), tumors and polyps that lack a stalk
Motility is genetically determined, [5] but may be affected by environmental factors such as toxins. The nervous system and musculoskeletal system provide the majority of mammalian motility. [6] [7] [8] In addition to animal locomotion, most animals are motile, though some are vagile, described as having passive locomotion.
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An equivalent (symbol: officially equiv; [1] unofficially but often Eq [2]) is the amount of a substance that reacts with (or is equivalent to) an arbitrary amount (typically one mole) of another substance in a given chemical reaction.
Most sessile protozoa are able to move around at some stage in the life cycle, such as after cell division. The term 'theront' has been used for actively motile phases, as opposed to 'trophont' or 'trophozoite' that refers to feeding stages. [citation needed]