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59 relations: Absolute zero, Ambipolar diffusion, Amino acid, Anomalous diffusion, Batchelor scale, Bohm diffusion, Brownian motion, Carbon dioxide, Catalysis, Cell biology, Ceramic, Chemical equilibrium, Chemical potential, Chemical reactor, Concentration, Diffusion, Diffusion equation, Diffusion MRI, Doping (semiconductor), Double diffusive convection, Drag (physics), Energy, Entropy, Fick's laws of diffusion, Flux, Isotopic labeling, Kinetic isotope effect, Local time (mathematics), Lung, Mammal, Mass diffusivity, Mass flux, Mass transfer, Metabolism, Molecule, Nuclear magnetic resonance, Osmosis, Oxygen, Permeation, Phase (matter), Potential energy, Powder metallurgy, Precipitation (chemistry), Pulmonary alveolus, Pulsed field gradient, Relativistic heat conduction, Respiration (physiology), Rigid rotor, Self-diffusion, Semiconductor, ..., Semipermeable membrane, Sintering, Solvent, Spin echo, Steel, Temperature, Transport phenomena, Turbulent diffusion, Viscosity. Expand index (9 more) »
Absolute zero
Absolute zero is the lower limit of the thermodynamic temperature scale, a state at which the enthalpy and entropy of a cooled ideal gas reach their minimum value, taken as 0.
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Ambipolar diffusion
Ambipolar diffusion is diffusion of positive and negative species with opposite electrical charge due to their interaction via an electric field.
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Amino acid
Amino acids are organic compounds containing amine (-NH2) and carboxyl (-COOH) functional groups, along with a side chain (R group) specific to each amino acid.
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Anomalous diffusion
Anomalous diffusion is a diffusion process with a non-linear relationship to time, in contrast to a typical diffusion process, in which the mean squared displacement (MSD), σr2, of a particle is a linear function of time.
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Batchelor scale
The Batchelor Scale, determined by George Batchelor (1954), describes the size of a droplet of scalar that will diffuse in the same time it takes the energy in an eddy of size η to dissipate.
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Bohm diffusion
The diffusion of plasma across a magnetic field was conjectured to follow the Bohm diffusion scaling as indicated from the early plasma experiments of very lossy machines.
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Brownian motion
Brownian motion or pedesis (from πήδησις "leaping") is the random motion of particles suspended in a fluid (a liquid or a gas) resulting from their collision with the fast-moving molecules in the fluid.
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Carbon dioxide
Carbon dioxide (chemical formula) is a colorless gas with a density about 60% higher than that of dry air.
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Catalysis
Catalysis is the increase in the rate of a chemical reaction due to the participation of an additional substance called a catalysthttp://goldbook.iupac.org/C00876.html, which is not consumed in the catalyzed reaction and can continue to act repeatedly.
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Cell biology
Cell biology (also called cytology, from the Greek κυτος, kytos, "vessel") is a branch of biology that studies the structure and function of the cell, the basic unit of life.
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Ceramic
A ceramic is a non-metallic solid material comprising an inorganic compound of metal, non-metal or metalloid atoms primarily held in ionic and covalent bonds.
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Chemical equilibrium
In a chemical reaction, chemical equilibrium is the state in which both reactants and products are present in concentrations which have no further tendency to change with time, so that there is no observable change in the properties of the system.
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Chemical potential
In thermodynamics, chemical potential of a species is a form of energy that can be absorbed or released during a chemical reaction or phase transition due to a change of the particle number of the given species.
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Chemical reactor
A chemical reactor is an enclosed volume in which a chemical reaction takes place.
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Concentration
In chemistry, concentration is the abundance of a constituent divided by the total volume of a mixture.
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Diffusion
Diffusion is the net movement of molecules or atoms from a region of high concentration (or high chemical potential) to a region of low concentration (or low chemical potential) as a result of random motion of the molecules or atoms.
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Diffusion equation
The diffusion equation is a partial differential equation.
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Diffusion MRI
Diffusion-weighted magnetic resonance imaging (DWI or DW-MRI) is the use of specific MRI sequences as well as software that generates images from the resulting data, that uses the diffusion of water molecules to generate contrast in MR images.
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Doping (semiconductor)
In semiconductor production, doping is the intentional introduction of impurities into an intrinsic semiconductor for the purpose of modulating its electrical properties.
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Double diffusive convection
Double diffusive convection is a fluid dynamics phenomenon that describes a form of convection driven by two different density gradients, which have different rates of diffusion.
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Drag (physics)
In fluid dynamics, drag (sometimes called air resistance, a type of friction, or fluid resistance, another type of friction or fluid friction) is a force acting opposite to the relative motion of any object moving with respect to a surrounding fluid.
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Energy
In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object.
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Entropy
In statistical mechanics, entropy is an extensive property of a thermodynamic system.
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Fick's laws of diffusion
Fick's laws of diffusion describe diffusion and were derived by Adolf Fick in 1855.
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Flux
Flux describes the quantity which passes through a surface or substance.
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Isotopic labeling
Isotopic labeling (or isotopic labelling) is a technique used to track the passage of an isotope (an atom with a detectable variation) through a reaction, metabolic pathway, or cell.
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Kinetic isotope effect
The kinetic isotope effect (KIE) is the change in the reaction rate of a chemical reaction when one of the atoms in the reactants is replaced by one of its isotopes.
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Local time (mathematics)
In the mathematical theory of stochastic processes, local time is a stochastic process associated with diffusion processes such as Brownian motion, that characterizes the amount of time a particle has spent at a given level.
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Lung
The lungs are the primary organs of the respiratory system in humans and many other animals including a few fish and some snails.
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Mammal
Mammals are the vertebrates within the class Mammalia (from Latin mamma "breast"), a clade of endothermic amniotes distinguished from reptiles (including birds) by the possession of a neocortex (a region of the brain), hair, three middle ear bones, and mammary glands.
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Mass diffusivity
Diffusivity or diffusion coefficient is a proportionality constant between the molar flux due to molecular diffusion and the gradient in the concentration of the species (or the driving force for diffusion).
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Mass flux
In physics and engineering, mass flux is the rate of mass flow per unit area, perfectly overlapping with the momentum density, the momentum per unit volume.
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Mass transfer
Mass transfer is the net movement of mass from one location, usually meaning stream, phase, fraction or component, to another.
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Metabolism
Metabolism (from μεταβολή metabolē, "change") is the set of life-sustaining chemical transformations within the cells of organisms.
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Molecule
A molecule is an electrically neutral group of two or more atoms held together by chemical bonds.
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Nuclear magnetic resonance
Nuclear magnetic resonance (NMR) is a physical phenomenon in which nuclei in a magnetic field absorb and re-emit electromagnetic radiation.
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Osmosis
Osmosis is the spontaneous net movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides.
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Oxygen
Oxygen is a chemical element with symbol O and atomic number 8.
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Permeation
In physics and engineering, permeation (also called imbuing) is the penetration of a permeate (such as a liquid, gas, or vapor) through a solid.
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Phase (matter)
In the physical sciences, a phase is a region of space (a thermodynamic system), throughout which all physical properties of a material are essentially uniform.
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Potential energy
In physics, potential energy is the energy possessed by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors.
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Powder metallurgy
Powder metallurgy (PM) is a term covering a wide range of ways in which materials or components are made from metal powders.
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Precipitation (chemistry)
Precipitation is the creation of a solid from a solution.
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Pulmonary alveolus
A pulmonary alveolus (plural: alveoli, from Latin alveolus, "little cavity") is a hollow cavity found in the lung parenchyma, and is the basic unit of ventilation.
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Pulsed field gradient
A pulsed field gradient is a short, timed pulse with spatial-dependent field intensity.
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Relativistic heat conduction
Relativistic heat conduction refers to the modelling of heat conduction (and similar diffusion processes) in a way not compatible with special relativity.
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Respiration (physiology)
In physiology, respiration is defined as the movement of oxygen from the outside environment to the cells within tissues, and the transport of carbon dioxide in the opposite direction.
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Rigid rotor
The rigid rotor is a mechanical model that is used to explain rotating systems.
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Self-diffusion
According to IUPAC definition, self-diffusion coefficient is the diffusion coefficient D_i^* of species i when the chemical potential gradient equals zero.
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Semiconductor
A semiconductor material has an electrical conductivity value falling between that of a conductor – such as copper, gold etc.
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Semipermeable membrane
A semipermeable membrane is a type of biological or synthetic, polymeric membrane that will allow certain molecules or ions to pass through it by diffusion—or occasionally by more specialized processes of facilitated diffusion, passive transport or active transport.
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Sintering
Clinker nodules produced by sintering Sintering is the process of compacting and forming a solid mass of material by heat or pressure without melting it to the point of liquefaction.
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Solvent
A solvent (from the Latin solvō, "loosen, untie, solve") is a substance that dissolves a solute (a chemically distinct liquid, solid or gas), resulting in a solution.
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Spin echo
In magnetic resonance, a spin echo is the refocusing of spin magnetisation by a pulse of resonant electromagnetic radiation.
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Steel
Steel is an alloy of iron and carbon and other elements.
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Temperature
Temperature is a physical quantity expressing hot and cold.
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Transport phenomena
In engineering, physics and chemistry, the study of transport phenomena concerns the exchange of mass, energy, charge, momentum and angular momentum between observed and studied systems.
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Turbulent diffusion
Turbulent diffusion is the transport of mass, heat, or momentum within a system due to random and chaotic time dependent motions.
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Viscosity
The viscosity of a fluid is the measure of its resistance to gradual deformation by shear stress or tensile stress.
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References
[1] https://en.wikipedia.org/wiki/Molecular_diffusion
