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CENTER PROJECTION [14 records]

Record 1 2016-07-25

English

Subject field(s)
  • Mathematical Geography
  • Cartography
DEF

A perspective azimuthal map projection(of a part of a hemisphere) on a plane tangent to the surface of the sphere, having the point of projection at the center of the sphere.

OBS

Gnomonic projections are used in seismic work because seismic waves tend to travel along great circles. They are also used by navies in plotting direction finding bearings, since radio signals travel along great circles.

French

Domaine(s)
  • Géographie mathématique
  • Cartographie
DEF

[...] projection perspective d'une sphère dans laquelle le point de vue est situé au centre de la sphère.

OBS

La projection [gnomonique] est azimutale et perspective, ni conforme, ni équivalente. Elle altère fortement les angles et les longueurs.

OBS

Elle est la seule projection où les grands cercles de la sphère sont représentés par des droites.

Spanish

Campo(s) temático(s)
  • Geografía matemática
  • Cartografía
Save record 1

Record 2 2013-01-22

English

Subject field(s)
  • The Eye
Universal entry(ies)
DEF

A slight projection from the margin of each eyelid near the medial commissure, in the center of which is the lacrimal punctum(opening of the lacrimal duct).

French

Domaine(s)
  • Oeil
Entrée(s) universelle(s)
DEF

Légère élévation au niveau du canthus interne de chaque paupière qui contient un point lacrymal.

Spanish

Campo(s) temático(s)
  • Ojo
Entrada(s) universal(es)
Save record 2

Record 3 2004-12-06

English

Subject field(s)
  • Amplifiers (Electronics)
  • Video Technology
  • Audio Technology
CONT

Projection Monitor Receivers.... Pioneer put its top-notch technology features into the Series-75. Exclusive Cinema Wide System with Full Cinema Mode and three-line digital comb filter, lets you thrill to the expansive feel of silver screen. Built-in Dolby Pro-Logic Surround and Stadium Mode add the dramatic sound of the movie house or sports stadium. And for sound on an even grander scale, a 5-Channel amplifier drives 3 built-in stereo speakers and a center speaker, or add optional Home Theater Experience Speakers.

French

Domaine(s)
  • Amplificateurs (Électronique)
  • Vidéotechnique
  • Électroacoustique
CONT

Récepteurs moniteurs à projection. [...] La série 75 a bénéficié du meilleur de la technique Pioneer. Grâce au mode «Full Cinema» du «Cinema Wide System» et au filtre peigne à trois lignes, le plaisir sera comparable à celui qu'offrent les plus grandes salles de cinéma. «Dolby Pro-Logic Surround» et le mode «Stadium» reproduisent à merveille toutes les ambiances cinématographiques. Un amplificateur à cinq voies utilise deux haut-parleurs pour la stéréophonie et un haut-parleur central; l'ensemble crée une profondeur acoustique peu commune [...]

Spanish

Save record 3

Record 4 2004-01-08

English

Subject field(s)
  • Physical Geography (General)
DEF

Templets used in connection with studies for the figure of the earth and isostasy. In obtaining elevation readings from maps in connection with topographic and isostatic reductions, templets of plastic are used. The templets used in connection with deflection of the vertical studies have circles and radial lines drawn upon them, so proportioned with reference to scale of map and azimuth that elevations and ocean depths within each compartment formed by adjacent arcs and radii can be easily averaged and the effect of the mass therein on a plumb line at the station(center of circles), under various hypotheses, can be computed. The templets used in connection with gravity studies are similar to those described above, except that no account is taken of azimuth, all compartments bounded by a given pair of circles being of the same size and shape. A given templet can be used only on maps of the scale and projection for which it is constructed.

French

Domaine(s)
  • Géographie physique (Généralités)

Spanish

Save record 4

Record 5 2004-01-07

English

Subject field(s)
  • Mathematical Geography
  • Cartography
DEF

A stereographic projection having the center of the projection on the equator.

French

Domaine(s)
  • Géographie mathématique
  • Cartographie

Spanish

Save record 5

Record 6 2004-01-07

English

Subject field(s)
  • Cartography
  • Mathematical Geography
DEF

A map projection produced by straight lines radiating from a selected point and passing through points on the sphere to the plane of projection. The plane of projection is usually tangent to the sphere which represents the earth at the center of the area being mapped; the point of projection is on the diameter of the sphere which passes through the point of tangency, and at some selected point on that diameter.

French

Domaine(s)
  • Cartographie
  • Géographie mathématique

Spanish

Save record 6

Record 7 2004-01-07

English

Subject field(s)
  • Mathematical Geography
  • Cartography
DEF

A stereographic projection having the center of the projection on some selected parallel of latitude other than the equator.

French

Domaine(s)
  • Géographie mathématique
  • Cartographie

Spanish

Save record 7

Record 8 2003-01-23

English

Subject field(s)
  • Physical Geography (General)
DEF

An azimuthal map projection having the pole of the projection at the center of the area mapped. The azimuths of great circles radiating from this center(pole) are truly represented on the map : equal distances on those great circles are represented by equal linear distances on the map, but the scale along those great circle lines so varies with distance from the pole of the projection, that an equal-area projection is produced.

French

Domaine(s)
  • Géographie physique (Généralités)
DEF

Projection azimutale dont le pôle se trouve au centre de la surface cartographiée. Les azimuts des grands cercles rayonnant à partir de ce centre sont véritablement représentés par des distances linéaires, équivalents sur la carte, mais la variation de l'échelle le long de ces grands cercles en fonction de la distance à partir du pôle de la projection est telle que l'on obtient une projection équivalente.

Spanish

Save record 8

Record 9 2001-06-01

English

Subject field(s)
  • Audiovisual Techniques and Equipment
  • Video Technology
CONT

Projection Monitor Receivers.... Pioneer put its top-notch technology features into the Series-75. Exclusive Cinema Wide System with Full Cinema Mode and three-line digital comb filter, lets you thrill to the expansive feel of silver screen. Built-in Dolby Pro-Logic Surround and Stadium Mode add the dramatic sound of the movie house or sports stadium. And for sound on an even grander scale, a 5-Channel amplifier drives 3 built-in stereo speakers and a center speaker, or add optional Home Theater Experience Speakers.

French

Domaine(s)
  • Audiovisuel (techniques et équipement)
  • Vidéotechnique
DEF

Dans une chaîne audio, haut-parleur que l'on place au centre et qui restitue, selon le profil d'écoute désiré, soit les fréquences aiguës, médianes ou graves.

CONT

Récepteurs moniteurs à projection. [...] La série 75 a bénéficié du meilleur de la technique Pioneer. Grâce au mode «Full Cinema» du «Cinema Wide System» et au filtre peigne à trois lignes, le plaisir sera comparable à celui qu'offrent les plus grandes salles de cinéma. «Dolby «Pro-Logic Surround» et le mode «Stadium» reproduisent à merveille toutes les ambiances cinématographiques. Un amplificateur à cinq voies utilise deux haut-parleurs pour la stéréophonie et un haut-parleur central; l'ensemble crée une profondeur acoustique peu commune [...]

Spanish

Save record 9

Record 10 2000-08-04

English

Subject field(s)
  • Equipment (Oil and Natural Gas Extraction)
DEF

Any cylindrical or tubular projection, usually relatively small in diameter, that extends below a downhole tool and serves to guide the tool to a particular, desired spot(as in the center of a portion of a stuck pipe).

French

Domaine(s)
  • Outillage (Extraction du pétrole et du gaz)

Spanish

Save record 10

Record 11 1993-06-09

English

Subject field(s)
  • Opening and Closing Devices (Packaging)
DEF

A convenience closure that incorporates a fixed cylindrical or conical projection into the center of a threaded or friction-fitting closure.

OBS

On some sealed spouts, dispensing control can be attained by cutting the spout at various heights, thereby providing different orifice sizes.

French

Domaine(s)
  • Modes d'ouverture et de fermeture (Emball.)
DEF

Fermeture pratique pour bouteilles et flacons qui ne possède pas de pièce mobile et qui se compose essentiellement d'une projection cylindrique ou conique se profilant au centre d'une capsule vissable ou enfonçable.

OBS

Il pourra s'agir par exemple d'une capsule avec embout à couper (anglais : snip-top cap).

OBS

Très utilisé pour les produits visqueux (colle).

Spanish

Save record 11

Record 12 1991-04-22

English

Subject field(s)
  • Computer Graphics
CONT

In the process of transforming a 3-D image to 2-D, straight rays are calculated from points on the image to the center of projection(COP). These rays pass through a plane between the object and the COP. This plane is called the projection plane.

French

Domaine(s)
  • Infographie

Spanish

Save record 12

Record 13 1989-02-10

English

Subject field(s)
  • Opening and Closing Devices (Packaging)
DEF

A convenience closure which incorporates a fixed cylindrical or conical projection into the center of a threaded or friction-fitting cap.

OBS

One typical example of a fixed-spout cap is the snip-top closure.

French

Domaine(s)
  • Modes d'ouverture et de fermeture (Emball.)
DEF

Type de fermeture pratique pour bouteilles et flacons qui ne possède pas de pièce mobile et qui a la forme d'une capsule à visser ou à enfoncer dotée en son centre d'une projection cylindrique ou conique.

OBS

La capsule avec embout à couper (anglais : snip-top cap) en est un bon exemple.

Spanish

Save record 13

Record 14 1986-06-18

English

Subject field(s)
  • Mathematical Geography
  • Geological Research and Exploration
  • Computer Graphics
DEF

A perspective azimuthal map projection produced by straight parallel lines from a point at an infinite distance from the sphere to points on the sphere and perpendicular to the plane of projection. The largest area depicted is that of a hemisphere, and the projection is true to scale only at the center...

French

Domaine(s)
  • Géographie mathématique
  • Recherches et prospections géologiques
  • Infographie
DEF

Projection perspective où le centre est rejeté à l'infini dans une direction perpendiculaire au plan de projection.

Spanish

Save record 14

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