This Diffusivity topic, formerly a disambiguation page, should provide at least a brief description of the topic and index all the notable examples that have Wikipedia articles.
Diffusivity is a rate of diffusion, a measure of the rate at which particles or heat or fluids can spread.
It is measured differently for different mediums.
Diffusivity may refer to:
Thermal diffusivity, diffusivity of heat
Diffusivity of mass:
Mass diffusivity, molecular diffusivity (often called "diffusion coefficient")
different mediums. Diffusivity may refer to: Thermal diffusivity, diffusivity of heat Diffusivity of mass: Mass diffusivity, molecular diffusivity (often called...
"smoothed out". Thermal diffusivity is a contrasting measure to thermal effusivity. In a substance with high thermal diffusivity, heat moves rapidly through...
Diffusivity, mass diffusivity or diffusion coefficient is usually written as the proportionality constant between the molar flux due to molecular diffusion...
Look up diffuser or diffusers in Wiktionary, the free dictionary. Diffuser may refer to: Diffuser (automotive), a shaped section of a car's underbody...
ratio of momentum diffusivity to thermal diffusivity. The Prandtl number is given as: P r = ν α = momentum diffusivity thermal diffusivity = μ / ρ k / ( c...
Diffuse reflection is the reflection of light or other waves or particles from a surface such that a ray incident on the surface is scattered at many...
number (i.e. a nonzero magnetic diffusivity) is associated with violation of Alfvén's theorem. The magnetic diffusivity has SI units of m²/s and is defined...
Cooking portal A heat diffuser, flame tamer, or simmering plate (UK) is a cooking utensil that is placed on top of a burner on a cooktop to separate the...
dimensionless number defined as the ratio of momentum diffusivity (kinematic viscosity) and mass diffusivity, and it is used to characterize fluid flows in which...
Diffusing capacity of the lung (DL) (also known as Transfer factor) measures the transfer of gas from air in the lung, to the red blood cells in lung...
This is a list of diffuse nebulae. Most nebulae are diffuse, meaning they do not have well-defined boundaries. Types of diffuse nebulae include emission...
interstellar gas, which can form by the cooling and condensation of more diffuse gas. Examples of the latter case are planetary nebulae formed from material...
thermal diffusivity of the sample, the faster the energy reaches the backside. A laser flash apparatus (LFA) to measure thermal diffusivity over a broad...
Diffuse panbronchiolitis (DPB) is an inflammatory lung disease of unknown cause. It is a severe, progressive form of bronchiolitis, an inflammatory condition...
or the highest molecular diffusivity. If the stratification is provided by the component with the lower molecular diffusivity (for example in case of a...
Diffuse midline glioma, H3 K27-altered (DMG) is a fatal tumour that arises in midline structures of the brain, most commonly the brainstem, thalamus and...
The diffuse series is a series of spectral lines in the atomic emission spectrum caused when electrons jump between the lowest p orbital and d orbitals...
lymphoma, not otherwise specified; diffuse large B cell lymphoma associated with chronic inflammation; fibrin-associated diffuse large B cell lymphoma; primary...
A dark nebula or absorption nebula is a type of interstellar cloud, particularly molecular clouds, that is so dense that it obscures the visible wavelengths...
is a dimensionless number defined as the ratio of thermal diffusivity to mass diffusivity. It is used to characterize fluid flows where there is simultaneous...
Diffuse reflectance spectroscopy, or diffuse reflection spectroscopy, is a subset of absorption spectroscopy. It is sometimes called remission spectroscopy...
molecule diffusing through the pore. Under this condition, the collision with the pore walls becomes gradually more likely and the diffusivity is lower...
Diffuse optical imaging (DOI) is a method of imaging using near-infrared spectroscopy (NIRS) or fluorescence-based methods. When used to create 3D volumetric...
Aroma lamps, or diffusers, are used to diffuse essential oils. They may project the oil into the air by heating it, letting it evaporate naturally, or...
Diffuse myelinoclastic sclerosis, sometimes referred to as Schilder's disease, is a very infrequent neurodegenerative disease that presents clinically...
Diffuse design refers to the designing capability of individuals who are not formally trained as designers. Drawing on the natural human ability to adopt...
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