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HORIZON TWO [21 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2019-10-11

English

Subject field(s)
  • Flight Instruments and Equipment (Aeroindustry)
  • Aircraft Piloting and Navigation
CONT

The localizer signal emitted from the transmitter site at the far end of the runway is confined within an angular width between 3° and 6°. The localizer provides course guidance throughout the descent path to the runway threshold from a distance of 18 NM [nautical miles] from the antenna between a height of 1000 ft above the highest terrain along the approach path and 4500 ft above the elevation of the antenna site.

CONT

In a similar manner as the LOC signal, the GS [glide slope] sends a UHF [ultra high frequency] carrier signal with the same two 90-Hz and 150-Hz sideband frequencies that aircraft instruments determine as above or below the desired glide path. This is approximately 3 degrees to the horizon which gives the aircraft a descent rate of approximately 500 feet per minute.

OBS

LOC: localizer.

Key term(s)
  • localiser signal

French

Domaine(s)
  • Instruments et équipement de bord (Constructions aéronautiques)
  • Pilotage et navigation aérienne
OBS

LOC : radiophare d'alignement de piste.

Spanish

Campo(s) temático(s)
  • Instrumentos y equipo de vuelo (Industria aeronáutica)
  • Pilotaje y navegación aérea
Save record 1

Record 2 2013-08-13

English

Subject field(s)
  • Defence Planning and Military Doctrine
DEF

A planning timeframe used in capability and force development.

CONT

There are three timeframes: horizon 1 is short term (1-5 years), horizon 2 is medium term (5-10 years) and horizon 3 is long term (10-30 years).

Key term(s)
  • horizon two
  • horizon II

French

Domaine(s)
  • Doctrine militaire et planification de défense
DEF

Horizon de planification utilisé pour le développement des capacités et des forces.

CONT

Il existe trois horizons : L'horizon 1 est à court terme (de 1 à 5 ans), l'horizon 2 est à moyen terme (de 5 à 10 ans) et l'horizon 3 est à long terme (de 10 à 30 ans).

Key term(s)
  • horizon deux
  • horizon II

Spanish

Save record 2

Record 3 2010-10-29

English

Subject field(s)
  • Tectonics
DEF

A fold in rocks such as an anticline in which both limbs or sides are the same.

CONT

A symmetrical fold is one in which the axial surface is everywhere equidistant from the two limbs of the fold, as defined by any one bedding horizon.

OBS

symmetric fold; symmetrical fold; upright fold: terms used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Tectonique
CONT

[...] les plis droits dont le plan axial est vertical de sorte que charnière et crête sont confondues.

OBS

pli droit; pli symétrique : termes en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

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Record 4 2010-09-21

English

Subject field(s)
  • Target Acquisition
  • Surveillance, Detection and Reconnaissance (Military)
CONT

The acquisition sensor constantly scans from horizon to horizon using a large field of view, small aperture, and fast scan mode. When a potential target is detected, the acquisition sensor begins a two dimensional(2D) track and passes the detection to the tracking sensor, which verifies the target and continues the track.

French

Domaine(s)
  • Acquisition d'objectif
  • Surveillance, détection et reconnaissance (Militaire)
CONT

Le nombre de plateformes pour SBIRS [Space-Based Infrared System] Low n'a pas encore été déterminé, mais elles utiliseront deux capteurs : un détecteur d'acquisition et un capteur de poursuite qui détecteront les signaux dans différentes zones infrarouges, courtes, moyennes ou longues et dans le spectre visible.

Spanish

Save record 4

Record 5 2009-09-29

English

Subject field(s)
  • Paleontology
CONT

... a 7 cm thick, green, mica-rich shale occurs and it is this horizon that has yielded the plant spores. Eleven species have been identified and they typify two spore zones that include the whole of the Asbian stage and the early part of the succeeding Brigantian of the Carboniferous period.

OBS

spore zone: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Paléontologie
OBS

zone à spores : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Save record 5

Record 6 2006-03-16

English

Subject field(s)
  • Information Processing (Informatics)
DEF

For purposes of these standards, the "Year 2000 event horizon" is the date by which a resource must be compliant before its date processing fails.

OBS

Based on the event horizon example the "Year 2000 event horizon" would require the application to be compliant-and tested-two years before January 1, 2000, or no later that January 1, 1998.

OBS

Term related to Year 2000 compliance.

French

Domaine(s)
  • Traitement de l'information (Informatique)
DEF

Aux fins de ces normes, «l'horizon des événements en vue de l'an 2000» est la date à laquelle une ressource doit être conforme avant la défaillance de son processus de datation.

OBS

Selon l'exemple de l'horizon des événements, «l'horizon des événements en vue de l'an 2000» exigerait que l'application soit conforme et vérifiée deux ans avant le 1er janvier 2000 ou pas plus tard que le 1er janvier 1998.

OBS

Terme relatif au passage de l'an 2000.

Spanish

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Record 7 2004-09-13

English

Subject field(s)
  • Atmospheric, Climatic and Meteorological Phenomena
CONT

The above photo shows a halo phenomenon known as the upper tangent arc. When cirrus clouds contain columnar ice crystals aligned so that their axes are all in a horizontal direction, this type of arc may be produced. A characteristic of this arc-shaped patch of light is that it’s directly above the Sun (it bends upward away from the Sun), and it’s approximately 22 degrees away from the Sun itself - about 2 fists held at arms length.

CONT

The 22° halo is most common, but other halo forms are sometimes seen. The tangent arcs to the 22° halo can appear if the sun's declination is less than 32°. One is called the lower tangent arc to the 22° halo, and the other is the upper tangent arc to the 22° halo. The shape of these tangent haloes depends upon the sun's declination. If the sun is close to the horizon, the two upper arcs angle sharply away from the 22° halo. As the sun rises higher in the sky, the tangent arcs move toward the 22° halo. When the sun's declination reaches 32°above the horizon, the lower and upper tangent arcs make contact, and the resulting ring is called the circumscribed halo. It touches the 22° halo above and beneath the sun. When the sun is just above 32°the circumscribed halo resembles a double oval. As the sun rises higher it becomes increasingly circular and draws nearer to the 22° halo. When the sun's declination exceeds 70°, the circumscribed arc nearly coincides with the 22° halo.

French

Domaine(s)
  • Phénomènes météorologiques, climatiques et atmosphériques
CONT

Un peu au-dessus ou au-dessous de l'astre lumineux [soleil], à la distance de 22 degrés, on peut fréquemment voir des arcs supérieurs et inférieurs tangents au petit anneau. En fait, on observe plus souvent les arcs supérieurs; ils ont souvent de belles couleurs. [...] Sur l'image suivante, on voit un arc tangent supérieur.

Spanish

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Record 8 2004-09-13

English

Subject field(s)
  • Atmospheric, Climatic and Meteorological Phenomena
CONT

The 22° halo is most common, but other halo forms are sometimes seen. The tangent arcs to the 22° halo can appear if the sun's declination is less than 32°. One is called the lower tangent arc to the 22° halo, and the other is the upper tangent arc to the 22° halo. The shape of these tangent haloes depends upon the sun's declination. If the sun is close to the horizon, the two upper arcs angle sharply away from the 22° halo. As the sun rises higher in the sky, the tangent arcs move toward the 22° halo. When the sun's declination reaches 32°above the horizon, the lower and upper tangent arcs make contact, and the resulting ring is called the circumscribed halo. It touches the 22° halo above and beneath the sun. When the sun is just above 32°the circumscribed halo resembles a double oval. As the sun rises higher it becomes increasingly circular and draws nearer to the 22° halo. When the sun's declination exceeds 70°, the circumscribed arc nearly coincides with the 22° halo.

French

Domaine(s)
  • Phénomènes météorologiques, climatiques et atmosphériques
CONT

Un peu au-dessus ou au-dessous de l'astre lumineux [soleil], à la distance de 22 degrés, on peut fréquemment voir des arcs supérieurs et inférieurs tangents au petit anneau.

Spanish

Save record 8

Record 9 2004-08-17

English

Subject field(s)
  • Information Processing (Informatics)
CONT

An information resource's "event horizon" is the latest future date that will be processed or handled by the resource. For example, if an application calculates expiration dates two years into the future, its "event horizon" is always a date two years from the present date.

OBS

Term related to Year 2000 compliance.

French

Domaine(s)
  • Traitement de l'information (Informatique)
CONT

«L'horizon des événements» d'une ressource documentaire est la date future la plus éloignée qui sera traitée par la ressource. Par exemple, si une application calcule des dates d'expiration jusqu'à deux ans à venir, son «horizon des événements» est toujours une date à deux ans du moment.

OBS

Terme relatif au passage de l'an 2000.

Spanish

Save record 9

Record 10 2003-07-22

English

Subject field(s)
  • Soil Science
CONT

A/C soil : A soil showing A and C horizons but no clearly developed B horizon, though a transitional zone between the two may be recognized as an A/C horizon.

OBS

Found particularly on soft limestone or lime sands.

French

Domaine(s)
  • Science du sol

Spanish

Save record 10

Record 11 2002-06-12

English

Subject field(s)
  • Atmospheric Physics
DEF

Point on the horizon towards which clouds in parallel bands seem, on account of perspective, to converge.

OBS

When the bands pass completely across the sky they seem to converge towards two directly opposite points on the horizon, which are the radiation points.

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Point de l'horizon vers lequel paraissent converger, par suite de l'effet de la perspective, des nuages en bandes parallèles.

OBS

Lorsque les bandes traversent entièrement le ciel, elles paraissent converger vers deux points opposés de l'horizon, qui sont les points de radiation.

Spanish

Campo(s) temático(s)
  • Física de la atmósfera
DEF

Punto en el horizonte hacia el que, por un efecto de perspectiva, parecen converger las nubes distribuidas en líneas paralelas.

OBS

Cuando las bandas cruzan enteramente el cielo, parecen converger hacia dos puntos del horizonte diametralmente opuestos, los llamados puntos de radiación.

Save record 11

Record 12 2002-06-12

English

Subject field(s)
  • Atmospheric Physics
DEF

Clouds showing broad parallel bands, or arranged in parallel bands, which, owing to the effect of perspective, seem to converge towards a point on the horizon or, when the bands cross the whole sky, towards two opposite points on the horizon, each called a "radiation point".

OBS

This term applies mainly to Cirrus, Altocumulus, Altostratus, Stratocumulus and Cumulus.

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Nuages présentant de larges bandes parallèles ou disposés en bandes parallèles qui, par suite de l'effet de la perspective, semblent converger vers un point de l'horizon ou, lorsque les bandes traversent entièrement le ciel, vers deux points opposés de l'horizon, appelés «point(s) de radiation».

OBS

Ce terme s'applique principalement aux Cirrus, Altocumulus, Altostratus, Stratocumulus et Cumulus.

Spanish

Campo(s) temático(s)
  • Física de la atmósfera
DEF

Nubes que presentan anchas bandas paralelas o que forman bandas paralelas, las cuales, debido a un efecto de perspectiva, parecen converger hacia un punto del horizonte, o cuando las bandas cruzan todo el cielo, hacia dos puntos opuestos, llamados puntos de radiación.

OBS

Este término se aplica principalmente a los Cirrus, Altocumulus, Altostratus, Stratocumulus y Cumulus.

Save record 12

Record 13 2001-10-10

English

Subject field(s)
  • Surveying
  • Mining Topography
CONT

According to the Etruscan tradition, the Romans used to trace the two main axes of the city-decumanus maximus and kardo maximus-by means of the shadow being cast by the first sunbeam that appeared at the physical horizon of the respective place on inauguration day. The azimuth of the decumanus maximus direction was therefore identical with the azimuth of the point the sun rise on the day. When tracing a city, the Romans used a topometric instrument groma...

CONT

Ground control and aerial targets for photogrammetric topometric mapping of a 138 acre park as part of a master plan for its redevelopment.

PHR

Topometrical deformation.

French

Domaine(s)
  • Arpentage
  • Topographie minière
DEF

Qui concerne la topométrie.

Spanish

Save record 13

Record 14 2001-08-13

English

Subject field(s)
  • Flight Instruments and Equipment (Aeroindustry)
  • Aircraft Piloting and Navigation
  • Navigation Instruments
CONT

The basic attitude sensor was the three-gyro inertial reference package. It contained two air-tight integrating gyro units to sense pitch and yaw, and one miniature integrating gyro unit to sense roll. The pitch and roll gyros were torqued by signals obtained by two Barnes mod IIA infrared horizon sensors. Gyrocompassing oriented the vehicle to an orbit plane yaw reference by detecting a component of the programmed pitch rate through the roll horizon sensor. The geocentric pitch rate(typically 4 deg/min, for a low-altitude orbit) was programmed as a constant torque to the pitch gyro. This pitch component, if a yaw error was present, would be sensed differentially when compared with the roll components of the two horizon-sensor heads. The differential would be seen as a function of yaw error.

CONT

During heading align, the rotor of the resolver is positioned so that it transforms the N-S and E-W liquid level signals into pitch and roll components which are referenced to heading. The pitch component is amplified, demodulated and summed with amplified and demodulated feedback signals from the VG [vertical gyro] roll and pitch pickoffs and the pitch synchro. The combined signal is then modulated, amplified and converted to DC [direct current] to drive the platform pitch gimbal torque motor until the input signals are nulled.

French

Domaine(s)
  • Instruments et équipement de bord (Constructions aéronautiques)
  • Pilotage et navigation aérienne
  • Instruments de navigation
CONT

Durant l'alignement sur le cap, le rotor du résolver est mis en position de telle sorte qu'il transforme les signaux des niveaux à liquide N.-S. et E.-O. en composantes de tangage et de roulis en référence au cap. La composante de tangage est amplifiée, démodulée et composée avec des signaux de réaction amplifiés et démodulés venant des capteurs de roulis et de tangage du VG [gyroscope directionnel] et du synchro de tangage. Ce signal composé est alors modulé, amplifié et converti en courant continu pour entraîner le moteur couple du cardan de tangage de la plate-forme jusqu'à ce que les signaux d'entrée soient annulés.

CONT

Il s'agit de la rotation galiléenne mais [...] la rotation à annuler quand on souhaite obtenir un pointage Terre parfait est la rotation relative au repère orbital de composantes en roulis, tangage et lacet.

Spanish

Save record 14

Record 15 2001-08-13

English

Subject field(s)
  • Aircraft Piloting and Navigation
  • Launching and Space Maneuvering
CONT

The basic attitude sensor was the three-gyro inertial reference package. It contained two air-tight integrating gyro units to sense pitch and yaw, and one miniature integrating gyro unit to sense roll. The pitch and roll gyros were torqued by signals obtained by two Barnes mod IIA infrared horizon sensors. Gyrocompassing oriented the vehicle to an orbit plane yaw reference by detecting a component of the programmed pitch rate through the roll horizon sensor. The geocentric pitch rate(typically 4 deg/min, for a low-altitude orbit) was programmed as a constant torque to the pitch gyro. This pitch component, if a yaw error was present, would be sensed differentially when compared with the roll components of the two horizon-sensor heads. The differential would be seen as a function of yaw error.

CONT

During heading align, the rotor of the resolver is positioned so that it transforms the N-S and E-W liquid level signals into pitch and roll components which are referenced to heading. The pitch component is amplified, demodulated and summed with amplified and demodulated feedback signals from the VG [vertical gyro] roll and pitch pickoffs and the pitch synchro. The combined signal is then modulated, amplified and converted to DC [direct current] to drive the platform pitch gimbal torque motor until the input signals are nulled.

French

Domaine(s)
  • Pilotage et navigation aérienne
  • Lancement et manœuvres dans l'espace
CONT

Durant l'alignement sur le cap, le rotor du résolver est mis en position de telle sorte qu'il transforme les signaux des niveaux à liquide N.-S. et E.-O. en composantes de tangage et de roulis en référence au cap. La composante de tangage est amplifiée, démodulée et composée avec des signaux de réaction amplifiés et démodulés venant des capteurs de roulis et de tangage du VG [gyroscope directionnel] et du synchro de tangage. Ce signal composé est alors modulé, amplifié et converti en courant continu pour entraîner le moteur couple du cardan de tangage de la plate-forme jusqu'à ce que les signaux d'entrée soient annulés.

CONT

[...] il s'agit de la rotation galiléenne mais [...] la rotation à annuler quand on souhaite obtenir un pointage Terre parfait est la rotation relative au repère orbital de composantes en roulis, tangage et lacet.

Spanish

Save record 15

Record 16 2001-04-01

English

Subject field(s)
  • Committees and Boards (Admin.)
  • Astronautics
CONT

The GAIA Observatory, which has been under study by ESA, industry and a very wide community of European astrophysicists over the past two years, arose from the recommendations of the ESA Horizon 2000+ Survey Committee in 1994.

French

Domaine(s)
  • Comités et commissions (Admin.)
  • Astronautique

Spanish

Save record 16

Record 17 1999-09-07

English

Subject field(s)
  • Drawing
DEF

A point where two parallel lines converge on the horizon.

CONT

On the left-hand side, the ground line will rise and the top edge will descend to the left, travelling away from the observer. Think of these lines as continuing. They will finally meet at their vanishing point on the horizon.

French

Domaine(s)
  • Dessin
DEF

Point d'un dessin en perspective où convergent des droites parallèles dans la réalité.

CONT

Des rails ou les bords d'une route semblent se couper au point de fuite, exactement sur la ligne d'horizon.

Spanish

Save record 17

Record 18 1999-05-10

English

Subject field(s)
  • Surveying Instruments
DEF

A small hand instrument used by surveyors for laying off a right angle by means of two mirrors set at an angle of 45 degrees.

CONT

The optical square... consists essentially of two mirrors placed at an angle of 45° to each other and contained in a flat cylindrical metal box... One of the mirrors, "I", is called the index glass and is wholly silvered, while the other mirror, "H’, is called the horizon glass and has its lower half silvered and its upper half plain.

Key term(s)
  • right angle prism

French

Domaine(s)
  • Instruments d'arpentage
CONT

L'équerre à prismes, aussi appelée équerre optique, est formée d'un prisme pentagonal dont les faces réfléchissantes forment entre elles un angle de 45°. L'équerre optique double à deux prismes pentagonaux superposés, ce qui permet de placer un point dans un alignement donné.

CONT

L'équerre à miroirs, aussi appelée équerre à réflexion, est formée de deux miroirs, fixés à 45° l'un de l'autre, donnant après réflexion deux directions perpendiculaires.

CONT

Équerre à deux miroirs - Elle se compose de deux miroirs faisant entre eux un angle de 50 grades [...]

Spanish

Save record 18

Record 19 1999-04-06

English

Subject field(s)
  • Atmospheric Physics
  • Atmospheric, Climatic and Meteorological Phenomena
DEF

Clouds arranged in lines roughly parallel to the wind direction and appearing, on account of perspective, to converge towards a point or two opposite points on the horizon called the radiation point(s). The cloud most frequently appearing in cloud streets is cumulus mediocris.

French

Domaine(s)
  • Physique de l'atmosphère
  • Phénomènes météorologiques, climatiques et atmosphériques
DEF

Nuages disposés en files sensiblement parallèles à la direction du vent, et paraissant converger, par suite de l'effet de la perspective, vers un point ou vers deux points opposés de l'horizon.

OBS

Les nuages constituant le plus souvent des «rues de nuages» sont les Cumulus de l'espèce mediocris.

Spanish

Campo(s) temático(s)
  • Física de la atmósfera
  • Fenómenos meteorológicos, climáticos y atmosféricos
DEF

Nubes dispuestas en líneas aproximadamente paralelas a la dirección del viento que, por un efecto de perspectiva, parecen converger en un punto o en dos puntos opuestos del horizonte ("punto o puntos de radiación").

OBS

La nube que aparece con mayor frecuencia en las calles de nubes es Cumulus mediocris.

Save record 19

Record 20 1998-07-06

English

Subject field(s)
  • Soil Science
DEF

A soil showing A and C horizons but no clearly developed B horizon, though a transitional zone between the two may be recognized as an A/C horizon.

OBS

Found particularly on soft limestone or lime sands.

French

Domaine(s)
  • Science du sol

Spanish

Save record 20

Record 21 1980-06-05

English

Subject field(s)
  • Soil Science
OBS

Two sequa in one soil; that is, two sequences of an eluvial horizon and its related illuvial horizon.

French

Domaine(s)
  • Science du sol
OBS

Deux sequums présents dans un même sol, c'est-à-dire deux horizons éluviaux et leurs horizons illuviaux correspondants.

Spanish

Save record 21

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