TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

In relative motion with respect to the Earth, the rate of change of the circulation(dC/dt) along a closed curve consisting always of the same fluid particles is equal to the number of isobaric-isosteric solenoids(N) enclosed by the curve, minus the product of twice the angular velocity of the Earth([omega]) and the rate of variation of the area(d[ sigma]/dt) defined by the projection of the curve on the equatorial plane : dC/dt=N-2[ omega] d[ sigma]/dt.  2, record 1, English, - circulation%20theorem%20of%20Bjerknes

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Dans le mouvement relatif par rapport à la Terre, la vitesse de variation de la circulation (dC/dt) le long d'une courbe fermée toujours formée des mêmes particules fluides est égale au nombre des solénoïdes isobares-isostères (N) enveloppés par la courbe, moins le produit du double de la vitesse angulaire de rotation terrestre ([oméga]) par le taux de variation de l'aire (d[sigma]/dt) définie par la projection de la courbe sur le plan de l'équateur : dC/dt = N - 2[oméga]d[sigma]/dt.  2, record 1, French, - th%C3%A9or%C3%A8me%20de%20la%20circulation%20de%20Bjerknes

Record 1,  Textual support,  Spanish

Record number: 1, Textual support number: 1 DEF

En el movimiento relativo con respecto a la Tierra, la velocidad de la circulación (dC/dt) a lo largo de una curva cerrada, formada siempre por las mismas partículas de fluido, es igual al número N de solenoides isobaricoisostéricos rodeados por dicha curva menos el doble de la velocidad angular de la Tierra ([omega]) multiplicada por la velocidad de variación del área (d[sigma]/dt) definida por la proyección de la curva sobre el plano ecuatorial: dC/dt = N - 2[omega]d[sigma]/dt.  1, record 1, Spanish, - teorema%20de%20la%20circulaci%C3%B3n%20de%20Bjerknes

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

The principle that the total angular momentum of a system has constant magnitude and direction if the system is subjected to no external force.  3, record 2, English, - law%20of%20conservation%20of%20angular%20momentum

Record number: 2, Textual support number: 1 CONT

Angular momentum is a vector quantity, requiring the specification of both a magnitude and a direction for its complete description … For a given object or system isolated from external forces, the total angular momentum is a constant, a fact that is known as the law of conservation of angular momentum. A rigid spinning object, for example, continues to spin at a constant rate and with a fixed orientation unless influenced by the application of an external torque.(The rate of change of the angular momentum is, in fact, equal to the applied torque.)  4, record 2, English, - law%20of%20conservation%20of%20angular%20momentum

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

Il convient de rappeler que les transmutations nucléaires, qu’elles soient spontanées – cas de la radioactivité – ou provoquées – cas des réactions […] sont soumises aux lois ou principes de conservation : — la loi de conservation de l’énergie totale d’un système isolé ou placé dans un champ extérieur constant (donc ne dépendant pas du temps) qui découle de l’uniformité du temps; — la loi de conservation de l’impulsion qui résulte de l’homogénéité de l’espace; — la loi de conservation du moment cinétique total qui découle de l’isotropie de l’espace […]  3, record 2, French, - loi%20de%20conservation%20du%20moment%20cin%C3%A9tique%20total

Record number: 2, Textual support number: 1 OBS

Cette loi de conservation est d’une extrême utilité, s’appliquant tout aussi bien aux galaxies, au mouvement planétaire qu’aux atomes et aux noyaux.  4, record 2, French, - loi%20de%20conservation%20du%20moment%20cin%C3%A9tique%20total

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

Distance traveled divided by the time of travel.  3, record 3, English, - rate%20of%20motion

Record number: 3, Textual support number: 1 CONT

Velocity is the rate of movement, or more specifically, the distance traveled per unit of time.  4, record 3, English, - rate%20of%20motion

Record number: 3, Textual support number: 1 OBS

Rate of motion in a straight line is called linear speed, whereas change of direction per unit time is called angular speed. Speed and velocity are often used interchangeably although some authorities maintain that velocity should be used only for the vector quantity.  5, record 3, English, - rate%20of%20motion

Record number: 3, Textual support number: 2 OBS

rate of motion: term used at Natural Resources Canada - Earth Sciences Sector.  6, record 3, English, - rate%20of%20motion

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 OBS

vitesse de mouvement : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.  2, record 3, French, - vitesse%20de%20mouvement

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

The variation of the direction in space is a conical motion, with vertex at the center of mass, around a perpendicular to the plane of the earth's orbit around the sun, in which the earth and the axis of rotation move together with no change in the position of the axis within the earth. This motion is caused by the gravitational attractions of the sun and the moon. The axis describes a sinuous conical surface at an irregularly varying rate; the motion is, therefore, represented as the resultant of a steady progressive motion in a circular cone of angular opening about 47°, called the "lunisolar precession"...  3, record 4, English, - lunisolar%20precession

Record number: 4, Textual support number: 2 CONT

Equinoctial precession is a circular motion of Earth’s rotational axis with respect to the "fixed" stars, also known as lunisolar precession. It is caused by the torque of the Sun and Moon on the Earth’s rotational bulge.  2, record 4, English, - lunisolar%20precession

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

La précession, due à l'action du Soleil et de la Lune, s'appelle «précession luni-solaire».  1, record 4, French, - pr%C3%A9cession%20luni%2Dsolaire

Record number: 4, Textual support number: 1 OBS

lunisolaire : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2004).  2, record 4, French, - pr%C3%A9cession%20luni%2Dsolaire

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 DEF

A device which makes use of a planet’s magnetic field to stabilise a satellite.  4, record 5, English, - magnetotorquer

Record number: 5, Textual support number: 1 CONT

The angular momentum of a tumbling orbiting satellite is changed to reduce the spinning of the spacecraft such that the spacecraft can operate in an essentially stabilized condition. The change in spin rate is accomplished by the development of a magnetic torque by commutation of magnetic air coils in response to Earth sensor signals controlled by spacecraft logic. The coils are disposed to produce magnetic dipoles transverse to the satellite spin axis such that by interacting with the Earth's magnetic field a torque is developed in a direction opposite the spin vector. The logic selects the proper magnetic dipole based upon data from sensors detecting the presence of the Earth for the development of the desired magnetic torque.  5, record 5, English, - magnetotorquer

Record number: 5, Textual support number: 1 OBS

magnetotorquer: term officially approved by the RADARSAT-2 Terminology Approval Group (ROAG).  6, record 5, English, - magnetotorquer

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

Dispositif qui utilise le champ magnétique d'une planète pour stabiliser un satellite.  2, record 5, French, - g%C3%A9n%C3%A9rateur%20de%20couple%20magn%C3%A9tique

Record number: 5, Textual support number: 1 OBS

générateur de couple magnétique : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  2, record 5, French, - g%C3%A9n%C3%A9rateur%20de%20couple%20magn%C3%A9tique

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 DEF

The rate at which a body rotates as expressed by an angular change of position per unit time.  2, record 6, English, - angular%20velocity

Record number: 6, Textual support number: 1 CONT

Angular rate gyro accuracy is characterized by two parameters: scale factor and drift. The scale factor describes the capability of the gyro to accurately sense angular velocity at different angular rates. This value is used to convert the voltage output from the gyro into an angular rate. System imperfections can cause small variations in the scale factor. These variations appear as a factor at the output of the gyro. Gyro drift characterizes the ability of the gyro to reference all rate measurements to the nominal zero point.  3, record 6, English, - angular%20velocity

Record number: 6, Textual support number: 2 CONT

Angular velocity is the time rate of change of angular displacement. More simply it is a measure of how fast an object is rotating. For example, the measure of a skater's spinning speed during a sit spin is called angular velocity. Angular velocity is calculated by subtracting the initial angular position from the final angular position and dividing by the time it took to get from the initial to final position. Angular velocity is measured in radians/second(SI units) or degrees/second or revolutions/second(English units).  4, record 6, English, - angular%20velocity

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 CONT

Le gyroscope est un appareil capable de fournir une direction physique de référence et, corrélativement, une information de rotation angulaire, sous forme d'un écart angulaire, ou d'un angle total [...] compris entre 0 et 360°, vis-à-vis d'un référentiel absolu ou «inertiel». Le gyromètre est un appareil capable de fournir une information de vitesse angulaire, vis-à-vis d'un référentiel absolu (c'est-à-dire par rapport aux étoiles).  2, record 6, French, - vitesse%20angulaire

Record number: 6, Textual support number: 2 CONT

Le gyroscope tourne rapidement sur lui-même (vitesse angulaire [oméga]) dans la direction indiquée, en même temps qu'il précesse par rapport à la verticale à la fréquence [Oméga]. Le moment d'inertie du gyroscope par rapport à l'axe ê est I et le centre de masse est situé à une distance h du pivot P.  3, record 6, French, - vitesse%20angulaire

Record number: 6, Textual support number: 3 CONT

[Les satellites] apparaissent fixes pour un observateur situé sur la Terre [...] lorsque le satellite tourne [...] à une vitesse angulaire égale à celle de la Terre.  4, record 6, French, - vitesse%20angulaire

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

Rate of change of angular velocity.  2, record 7, English, - angular%20acceleration

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 DEF

Degré de variation de la vitesse angulaire.  2, record 7, French, - acc%C3%A9l%C3%A9ration%20angulaire

Record number: 7, Textual support number: 1 OBS

Si un corps rigide tourne autour d'un axe fixe, sa position est définie par un angle dièdre «a» formé par un plan fixe et un plan lié au corps rigide, ces deux plans se coupant selon un axe «r». Le mouvement est décrit par la fonction a(t). La dérivée seconde de a(t), par rapport au temps, est l'accélération angulaire du corps.  3, record 7, French, - acc%C3%A9l%C3%A9ration%20angulaire

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 DEF

An apparent backward motion in the Zodiac of certain planets when decreasing in longitude as viewed from the Earth, due to the rate of change in angular relationship.  1, record 8, English, - retrogradation

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 DEF

Mouvement apparent qui est la résultante de la rotation des planètes et de la Terre sur leurs orbites concentriques autour du Soleil. Les vitesses de rotation différentes entre la Terre et une planète donnent l'illusion que celle-ci rétrograde sur son orbite.  1, record 8, French, - r%C3%A9trogradation

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 OBS

521ASE.2.e  1, record 9, English, - angular%20rate%20of%20change

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 OBS

ibid. aéronautique 106mb.17-6-74  1, record 9, French, - vitesse%20angulaire%20de%20rotation

Record 9,  Textual support,  Spanish