Definition, Betydelse & Synonymer | Engelska ordet DIFFUSION

Definition av DIFFUSION

1. (kemi, fysik) diffusion

Exempel på hur man kan använda DIFFUSION i en mening

• It proposes that Celtic culture spread westward and southward from these areas by diffusion or migration.
• It includes the theory and application of new and existing computer software technologies and basic aspects of music, such as sound synthesis, digital signal processing, sound design, sonic diffusion, acoustics, electrical engineering, and psychoacoustics.
• Carefully balanced composition, soft diffusion of light, and granular impasto characterize his work.
• Molecular diffusion, often simply called diffusion, is the thermal motion of all (liquid or gas) particles at temperatures above absolute zero.
• Fick's laws of diffusion describe diffusion and were first posited by Adolf Fick in 1855 on the basis of largely experimental results.
• Facilitated diffusion (also known as facilitated transport or passive-mediated transport) is the process of spontaneous passive transport (as opposed to active transport) of molecules or ions across a biological membrane via specific transmembrane integral proteins.
• The high viscosity inhibits diffusion of atoms through the lava, which inhibits the first step (nucleation) in the formation of mineral crystals.
• Being acoelomates (having no body cavity), and having no specialised circulatory and respiratory organs, they are restricted to having flattened shapes that allow oxygen and nutrients to pass through their bodies by diffusion.
• It is now generally agreed that even the Altaic languages do not share a common descent: the similarities between Turkic, Mongolic and Tungusic are better explained by diffusion and borrowing.
• Their function is to conduct gas exchange by extracting oxygen from the air into the bloodstream via diffusion directly across the humidified airway epithelia, and to release carbon dioxide from the bloodstream out into the atmosphere, a process also known as respiration.
• Despite his short life and few years of activity (he died of tuberculosis at the age of 26), he managed to create works of high artistic value and historical importance, among which we remember La serva padrona (The Maid Turned Mistress), of the highest importance for the development and diffusion of the opera buffa in Europe, L'Olimpiade, considered one of the masterpieces of the opera seria of the first half of the eighteenth century, and the Stabat Mater, among the most important works of sacred music of all time.
• The effect can be observed for example by placing insoluble markers at the interface between a pure metal and an alloy containing that metal, and heating to a temperature where atomic diffusion is reasonable for the given timescale; the boundary will move relative to the markers.
• Common alternative methods include solvent welding (of thermoplastics) using chemicals to melt materials being bonded without heat, and solid-state welding processes which bond without melting, such as pressure, cold welding, and diffusion bonding.
• It can be used to model the temperature variation of diffusion coefficients, population of crystal vacancies, creep rates, and many other thermally induced processes and reactions.
• During the 290s BC, Hellenistic civilization begins its emergence throughout the successor states of the former Argead Macedonian Empire of Alexander the Great, resulting in the diffusion of Greek culture throughout the Levant and advances in science, mathematics, philosophy, etc.
• It is defined to be the ratio of the rate of advection of a physical quantity by the flow to the rate of diffusion of the same quantity driven by an appropriate gradient.
• Infiltration (medical), the diffusion or accumulation of substances or cells not normal to it or in amounts in excess of the normal.
• Mohenjo-daro may also have been a point of diffusion for the clade of the domesticated chicken found in Africa, Western Asia, Europe and the Americas.
• If his nephew were to die without heirs, however, Smithson's will stipulated that his estate be used "to found in Washington, under the name of the Smithsonian Institution, an establishment for the increase and diffusion of knowledge among men".
• Founded after World War II and the Holocaust as a dependent body of the United Nations, UNESCO started as soon as it was created to promote scientific studies concerning ethnic groups and their diffusion in public opinion to dispel pseudo-scientific rationalizations of racism.

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