Adiabatic processes can occur if the container of the system has thermally-insulated walls or the process happens in an extremely short time, so that there is no opportunity for significant heat exchange.

Adiabatic heating occurs when the pressure of a gas is increased from work done on it by its surroundings, e. g. a piston.

Adiabatic cooling occurs when the pressure of a substance is decreased as it does work on its surroundings.

Adiabatic cooling occurs in the Earth's atmosphere with orographic lifting and lee waves, and this can form pileus or lenticular clouds if the air is cooled below the dew point.

Temperature-Entropy diagram The idealized diagrams of a four-stroke Otto cycle Pressure volume diagram | Both diagrams: the < span style =" margin: 1px ; background :# 10ff00 ;"> intake ( A ) </ span > stroke is performed by an Isobaric process | isobaric expansion, followed by an Adiabatic process | adiabatic < span style =" margin: 1px ; background :# ffae21 ;"> compression ( B ) </ span > stroke.

The idealized four-stroke Otto cycle Pressure volume diagram | p-V diagram: the < span style =" margin: 1px ; background-color: # 10ff00 ;"> intake ( A ) </ span > stroke is performed by an Isobaric process | isobaric expansion, followed by the < span style =" margin: 1px ; background-color: # ffae21 ;"> compression ( B ) </ span > stroke, performed by an Adiabatic process | adiabatic compression.

* Adiabatic magnetization: A magnetocaloric substance is placed in an insulated environment.

* Adiabatic demagnetization: The substance is returned to another adiabatic ( insulated ) condition so the total entropy remains constant.

* Adiabatic storage retains the heat produced by compression and returns it to the air when the air is expanded to generate power.

Irreversible Adiabatic Process | adiabatic process: If the cylinder is a perfect insulator, the initial top-left state cannot be reached anymore after it is changed to the one on the top-right.

Adiabatic process: Gradually changing conditions allow the system to adapt its configuration, hence the probability density is modified by the process.

An atomic coherence is essential in research on several effects, such as electromagnetically induced transparency ( EIT ), lasing without inversion ( LWI ), enhanced dispersion without absorption, Stimulated Raman Adiabatic Passage ( STIRAP ) and nonlinear optical interaction with enhanced efficiency.

Adiabatic shear band is a term used in physics, mechanics and engineering.

" Adiabatic " is a thermodynamic term meaning an absence of heat transfer – the heat produced is retained in the zone where it is created.

Here the premise is that any observer continually tries to improve the predictability and compressibility of the observations by discovering regularities such as repetitions and symmetries and fractal self-similarity.

At low speeds, the compressibility of air is not significant in relation to aircraft design, but as the airflow nears and exceeds the speed of sound, a host of new aerodynamic effects become important in the design of aircraft.

In solving a subsonic problem, one decision to be made by the aerodynamicist is whether to incorporate the effects of compressibility.

When the effects of compressibility on the solution are small, the aerodynamicist may choose to assume that density is constant.

The presence of shock waves, along with the compressibility effects of high-velocity ( see Reynolds number ) fluids, is the central difference between supersonic and subsonic aerodynamics problems.

The quantity that is conveniently measured at constant experimentally controlled temperature, the isothermal compressibility, is defined by

The compressibility for a typical liquid or solid is 10 < sup >− 6 </ sup > bar < sup >− 1 </ sup > ( 1 bar = 0. 1 MPa ) and a typical thermal expansivity is 10 < sup >− 5 </ sup > K < sup >− 1 </ sup >.

The Edelman algorithm works equally well for sparse and non-sparse data, since it is based on the compressibility ( rank deficiency ) of the Fourier matrix itself rather than the compressibility ( sparsity ) of the data.

This is often not an ideal solution for GIF images, both because the loss of spatial resolution typically makes an image look fuzzy on the screen, and because the dithering patterns often interfere with the compressibility of the image data, working against GIF's main purpose.

If M < 0. 2 – 0. 3 and the flow is ( quasi ) steady and isothermal, compressibility effects will be small and a simplified incompressible flow model can be used.

where n is the refraction index, is the photoelastic coefficient of the glass, is Boltzmann constant, and is the isothermal compressibility.

As neither entropy nor enthalpy vary greatly with temperature, it is normal to use the tabulated standard values without any correction for the difference in temperature from 298 K. A correction must be made if the pressure is different from 100 kPa, as the entropy of a gas is proportional to its pressure ( or, more precisely, to its fugacity ): the entropies of liquids vary little with pressure, as the compressibility of a liquid is small.

Confined aquifers have very low storativity values ( much less than 0. 01, and as little as 10 < sup >− 5 </ sup >), which means that the aquifer is storing water using the mechanisms of aquifer matrix expansion and the compressibility of water, which typically are both quite small quantities.

The conversion to YCbCr provides two benefits: first, it improves compressibility by providing decorrelation of the color signals ; and second, it separates the luma signal, which is perceptually much more important, from the chroma signal, which is less perceptually important and which can be represented at lower resolution to achieve more efficient data compression.

The deviation is expressed as a compressibility factor.

Accordingly isothermal compressibility is defined:

The compressibility factor is defined as

* The bulk modulus (< var > K </ var >) describes volumetric elasticity, or the tendency of an object to deform in all directions when uniformly loaded in all directions ; it is defined as volumetric stress over volumetric strain, and is the inverse of compressibility.

The compressibility factor is defined as

A new South is emerging after the post-bellum years of hesitation, uncertainty, and lack of action from the Negro in defining his new role in the amorphously defined socio-political organizations of the white man.

A small business is defined as one which is independently owned and operated and which is not dominant in its field.

Field shifts were derived from the mean value of the resonance line, defined as the field about which the first moment is zero.

Dirt, which is here defined as particulate material which is usually inorganic and is very often extremely finely divided so as to exhibit colloidal properties.

The international unit is equipotent with the USP unit adopted in 1952, which was defined as the amount of activity present in 20 mg of the USP reference substance.

The function f{t} defined in this way is multi-valued.

In some neighborhood of an isolated tangent point in the f-plane, say Af, the function Af is either double-valued or has no values defined, except at the tangent point itself, where it is single-valued.

Suppose Af is defined in the sub-interval Af.

Where boundary maintenance describes the boundaries or limits of the group, systemic linkage is defined `` as the process whereby one or more of the elements of at least two social systems is articulated in such a manner that the two systems in some ways and on some occasions may be viewed as a single unit.

The positive Kohnstamm reactivity in Condition 1 ( ( the naive state ) is not adequately explained by such a concept as suggestibility ( if suggestibility is defined as the influence on behavior by verbal cues ).

For example, property `` used in the trade or business '' of a transferor corporation, as defined in section 1231, presumably would not retain its special status following a non-taxable reorganization if it is not so used in the business of the acquiring corporation.

Planes defined as parallel to the surface also cut through it into real space, and a depth is suggested optically which is greater than that established pictorially.

**yc is defined by the geometry of the knife ; ;

The gyro angular momentum is defined by H.

But since this is a world in which people disagree about ends and goals and concerning justice and injustice, and since, in a situation where direct action and economic pressure are called for, the justice of the matter has either not been clearly defined by law or the law is not effectively present, there has to be a morality of means applied in every case in which people take it upon themselves to use economic pressures or other forms of force.

Anarchism is generally defined as the political philosophy which holds the state to be undesirable, unnecessary, and harmful ,< ref name =" definition ">