Adsorption

Adsorption

Adhesion of a thin layer of molecules of one substance to the surface of another without absorption. An example is adsorption of water to the surface of a dielectric. This term is often confused with absorption because the spellings of the two words are almost identical. Compare absorption.

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Category: Electronic engineering
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adsorption

Automotive; Automobile

The bonding that takes place when a gas or vapor comes into contact with a solid. The opposite is desorption.

adsorption

Industrial machinery; Industrial lubricants

Adhesion of the molecules of gases, liquids, or dissolved substances to a solid surface, resulting in relatively high concentration of the molecules at the place of contact; e.g. ...

adsorption

Chemistry; Analytical chemistry

The process in which one substance collects on another. In a water filter, particles of pollutants collect on chips of carbon by adsorption.

adsorption

Engineering; Electronic engineering

Adhesion of a thin layer of molecules of one substance to the surface of another without absorption. An example is adsorption of water to the surface of a dielectric. This term is ...

adsorption

Biotechnology; Genetic engineering

The formation of a layer of gas, liquid or solid on the surface of a solid. cf absorption.

adsorption

Electrical equipment; Fuel cell

Adsorption is a process that occurs when a gas or liquid solute accumulates on the surface of a solid or a liquid (adsorbent), forming a film of molecules or atoms (the ...

Alexanderson

Engineering; Electronic engineering

American inventor who developed the first practical television system in 1930. He later improved upon his invention when he developed color television in 1955.

decibel (dB)

Engineering; Electronic engineering

A practical unit of relative gain. In terms of power, the relative gain in decibels is equal to: Gain (dB) = 10 log 10 ( P out /P in ), where P out is the output power and P ...

audio-frequency meter

Engineering; Electronic engineering

An instrument to measure frequencies in the audio-frequency spectrum (approximately 20 Hz to 20 kHz). Three types are commonly used: * Analog - Gives direct indications of ...

Boltzmann's principle

Engineering; Electronic engineering

A description of the statistical distribution of large numbers of tiny particles under the influence of a force, such as an electric or magnetic field. When the system is in ...

current-hogging injection logic (CHIL)

Engineering; Electronic engineering

A form of bipolar digital logic, similar to current hogging logic but having the greater density characteristic of injection logic.

current-limiting resistor

Engineering; Electronic engineering

A series resistor inserted into a circuit to limit the current to a prescribed value.

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