Then looking at the relation of clinically defined illness and self reports and find that there is often a discrepancy.

* modulation-to change the frequency or amplitude of a carrier signal in relation to a predefined signal.

The transfer function is a mathematical representation, in terms of spatial or temporal frequency, of the relation between the input and output of a linear time-invariant solution of the nonlinear differential equations describing the system.

When considered as particles, they are known as photons, and each has an energy related to the frequency of the wave given by Planck's relation E

Planck's relation links the energy of a photon to its frequency through the equation:

determines the characteristic frequency ν < sub > 12 </ sub > of light which will interact with the atoms ; This is given by the relation

The energy difference between the two states ΔE < sub > 21 </ sub > is emitted from the atom as a photon of frequency ν < sub > 21 </ sub > as given by the frequency-energy relation above.

A transfer function ( also known as the system function or network function ) is a mathematical representation, in terms of spatial or temporal frequency, of the relation between the input and output of a linear time-invariant system with zero initial conditions and zero-point equilibrium.

A wavenumber, the spatial frequency of the wave in radians per unit distance ( typically per meter ), can be associated with the wavelength by the relation

The relation between the number of fractional frequency samples and time error series is fixed in the relationship

Carson's bandwidth rule is expressed by the relation where CBR is the bandwidth requirement, is the peak frequency deviation, and is the highest frequency in the modulating signal.

The frequency deviation of a radio is of particular importance in relation to bandwidth, because less deviation means that more channels can fit into the same amount of frequency spectrum.

Interestingly, the ability to unconsciously and relatively accurately tally the frequency of events appears to have little or no relation to the individual's age, education, intelligence, or personality, thus it may represent one of the fundamental building blocks of human orientation in the environment and possibly the acquisition of procedural knowledge and experience, in general.

* modulation-to change the frequency or amplitude of a carrier signal in relation to a predefined signal.

In a dispersive medium sound speed is a function of sound frequency, through the dispersion relation.

Solving this equation gives roughly the following relation between the ERB value and the frequency in Hz:

In relation to the desired frequency function, there may also be an accompanying weighting function which describes, for each frequency, how important it is that the resulting frequency function approximates the desired one.

The latter condition can be realized by considering a very narrow function as the wanted impulse response of the filter even though this function has no relation to the desired frequency function.

According to the uncertainty relation of the Fourier transform, the product of the width of the filter's impulse response function and the width of its frequency function must exceed a certain constant.

* A wave containing only a single frequency ( monochromatic ) is perfectly correlated at all times according to the above relation.

The frequency of the electron wave is related to the kinetic energy of an individual electron particle via the quantum-mechanical relation E = hf.

A 1996 British Journal for the History of Science article cites James F. Donnelly for mentioning a 1839 reference to chemical engineering in relation to the production of sulfuric acid.

Below several examples illustrate both the stationary and rotating frames of reference, and the role of centrifugal force and its relation to Coriolis force in rotating frameworks.

Commonly in reference to Finland's policies vis-à-vis the Soviet Union during the Cold War, but could refer to similar international relations, such as Denmark's attitude toward Germany between 1871 and 1940, and Taiwan's relation with China since 2008.

On the other hand, during rehearsals, workmen in the theater stopped what they were doing during Va, pensiero and applauded at the conclusion of this haunting melody while the growth of the " identification of Verdi's music with Italian nationalist politics " is judged to have begun in the summer 1846 in relation to a chorus from Ernani in which the name of one of its characters, " Carlo ", was changed to " Pio ", a reference to Pope Pius IX's grant of an amnesty to political prisoners.

" Nepal " was derived from the Sanskrit nipalaya, which means " at the foot of the mountains " or " abode at the foot ", a reference to its location in relation to the Himalayas.

The diagram to the right illustrates the distribution of known trans-Neptunian objects ( up to 70 AU ) in relation to the orbits of the planets and the centaurs for reference.

Jitter is the undesired deviation from true periodicity of an assumed periodic signal in electronics and telecommunications, often in relation to a reference clock source.

where the reference variables may be functions of the number of particles N. Using the definition of the heat capacity at constant volume for the first differential and the appropriate Maxwell relation for the second we have:

Alternatively, consumers may show change in attitude such as reevaluate price in relation to external reference prices or attribute high or low prices with quality.

A reference that has very ancient use of Euskara in Colombian territory, occurred in relation to Lope de Aguirre, a native of Gipuzkoa nicknamed " The Madman ".

Lacan similarly saw ideas of reference as linked to ' the unbalancing of the relation to the capital Other and the radical anomaly that it involves, qualified, improperly, but not without some approximation to the truth, in old clinical medecine, as partial delusion ' - the ' big other, that is, the other of language, the Names-of-the-Father, signifiers or words ', in short, the realm of the superego.

Astronomical data are often specified not only in their relation to an epoch or date of reference, but also in their relations to other conditions of reference, such as coordinate systems specified by " equinox ", or " equinox and equator ", or " equinox and ecliptic " – when these are needed for fully specifying astronomical data of the considered type.

William Vernon Harcourt, he investigated the relation between the chemical composition and the optical properties of various glasses, with reference to the conditions of transparency and the improvement of achromatic telescopes.

A true bearing is measured in relation to the fixed horizontal reference plane of true north, that is, using the direction toward the geographic north pole as a reference point.

A magnetic bearing is measured in relation to magnetic north, that is, using the direction toward the magnetic north pole ( in northeastern Canada ) as a reference.

A grid bearing is measured in relation to the fixed horizontal reference plane of grid north, that is, using the direction northwards along the grid lines of the map projection as a reference point.

A relative bearing is one in which the reference direction is straight ahead, where the bearing is measured relative to the direction the navigator is facing ( on land ) or in relation to the vessel's bow ( aboard ship ).

In order to create sensor-based maps, most remote sensing systems expect to extrapolate sensor data in relation to a reference point including distances between known points on the ground.

The earliest mention of the term national security, however, was made in Yale University in 1790 wherein reference was made to its relation with domestic industries.

Rabbinic literature mentions the village in relation to the production of pottery ; in the Tosefta, there is a reference to, " those who make black clay, such as Kefar Hananya and its neighbors.

The terms are used by seamen in relation to their ships but also in reference to islands in an archipelago and to the different sides of a single island.