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DISTANT SOURCE [9 records]

Record 1 2021-03-30

English

Subject field(s)
  • Animal Behaviour
  • Beekeeping
DEF

A series of figure-eight movements performed by a bee to indicate the direction and abundance of a distant food source.

Key term(s)
  • wagtail dance

French

Domaine(s)
  • Comportement animal
  • Élevage des abeilles
CONT

[La danse frétillante est] pratiquée si la source se trouve loin du nid, à plusieurs dizaines voire centaines de mètres. Cette danse est appelée frétillante, car l'abeille y décrit une forme de «8» aplati dont la partie centrale est en ligne droite, ligne que l'abeille parcourt en faisant frétiller son abdomen.

Spanish

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Record 2 2015-02-13

English

Subject field(s)
  • Metals Mining
  • Economic Geology
DEF

... a hydrothermal mineral deposit that is distant from its magmatic source.

French

Domaine(s)
  • Mines métalliques
  • Géologie économique
DEF

Gîte minéral formé à distance d'une intrusion magmatique originelle.

OBS

[...] le préfixe télé exprime l'éloignement de la source magmatique supposée [...]

Spanish

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Record 3 2011-09-16

English

Subject field(s)
  • Air Pollution
CONT

In the surroundings of city and industrial areas, the deposition pattern of different pollutants is affected by local as well as remote sources. A great deal of the deposition of sulphur and acid precipitation over South Scandinavia most probably originates from SO2 emissions from Great Britain and Central Europe.

French

Domaine(s)
  • Pollution de l'air
DEF

Source d'émissions polluantes d'origine anthropique située à plus de 100 km ou à plus de 48 heures de transport atmosphérique de la zone de retombée des substances polluantes.

CONT

En 1972, après environ deux ans de préparation avec l'aide du Conseil Scandinave sur la Recherche Appliquée, le Conseil de l'O.C.D.E. a entrepris un programme de coopération technique pour mesurer le transport des polluants atmosphériques à longue distance (...). L'objectif du Programme était de déterminer l'importance relative des sources locales et éloignées des composés du soufre et leur contribution à la pollution de l'air d'une région donnée, l'accent étant mis en particulier sur la question de l'acidité des eaux de pluie.

Spanish

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Record 4 2007-06-14

English

Subject field(s)
  • Econometrics
  • Foreign Trade
CONT

Distance is still an important source of trade costs and continues to have an irrevocable impact on the patterns of international trade... various factors... can explain the importance of geographical proximity for bilateral trade. First, transport costs and costs of timeliness increase with distance. Moreover, psychic distance increases as well. Because of cultural unfamiliarity and information costs, traders have less knowledge of distant markets.

CONT

If transportation costs are the main source of distance effects on trade and wages, we can expect that in some service sectors, distance effects may indeed be eliminated with globalization.

CONT

There is no shortage of estimates of the effect of distance on trade flows. A huge number of papers have examined the determinants of bilateral trade flows and they almost invariably control for distance. Despite the abundance of such studies, assessments of the distance effect tend to be anecdotal.

French

Domaine(s)
  • Économétrie
  • Commerce extérieur
CONT

Si les coûts de transport sont la source principale des effets de distance sur le commerce et les salaires, alors nous pouvons nous attendre à ce que les effets de distance, dans certains secteurs des services, soient éliminés par la mondialisation.

Spanish

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Record 5 2004-11-16

English

Subject field(s)
  • Atmospheric Physics
  • Acoustics (Physics)
DEF

Assemblage of points on the Earth's surface where a distant sound is not audible even though it may be audible at more distant places situated on the same straight line from the source.

Key term(s)
  • silence zone
  • silent zone

French

Domaine(s)
  • Physique de l'atmosphère
  • Acoustique (Physique)
DEF

Ensemble des points de la surface terrestre où un son lointain n'est pas audible alors qu'il peut l'être en des lieux plus éloignés situés sur la même ligne droite partant de la source du son.

Spanish

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

Conjunto de puntos en la superficie de la Tierra en los cuales no es audible un sonido distante, aunque puede ser audible en otros lugares situados en la misma línea recta con respecto a la fuente del sonido, pero más lejanos.

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Record 6 2004-09-23

English

Subject field(s)
  • Weather Stations and Meteorological Instruments and Equipment
DEF

A photometer which measures the intensity of light received from a distant source.

OBS

When specifically used to measure the transmissivity of the intervening atmosphere (or other medium), it is usually termed a transmissometer.

Key term(s)
  • tele-photometer
  • tele photometer

French

Domaine(s)
  • Stations, instruments et équipements météorologiques
DEF

Photomètre qui mesure l'intensité de la lumière reçue d'une source éloignée.

Spanish

Campo(s) temático(s)
  • Estaciones, instrumentos y equipos meteorológicos
DEF

Fotómetro que mide la intensidad de la luz recibida de una fuente distante.

Save record 6

Record 7 2004-05-01

English

Subject field(s)
  • Translation (General)
  • Geology
OBS

"Rootless" exoskarn and replacement bodies in structural and stratigraphic traps distant from a probable or unknown igneous source...

French

Domaine(s)
  • Traduction (Généralités)
  • Géologie
OBS

Des exoskarns et des amas de remplacement «isolés» formés dans des pièges structuraux et stratigraphiques éloignés d'une source ignée probable ou inconnue [...]

Spanish

Save record 7

Record 8 2003-06-13

English

Subject field(s)
  • Radiological Physics (Theory and Application)
  • Mineralogy
CONT

X-ray powder diffraction is used in the identification of crystalline phases in unknown samples, finding the lattice parameter and other lattice related information, quantitative determination of phases in multiphase samples, finding the orientation in single crystals, and stereographic projections. The samples must be crystalline solids such as metals, ceramics, rocks etc. These samples are usually about 1 mg in size. If the sample fits in the sample holder then there is no preparation necessary otherwise the sample may have to be crushed in order to fit. The sample takes less than one hour to be analyzed for qualitative analysis in major phases and up to 16 hours for trace phases. The quantitative analysis can take several minutes to several hours after set up. There are several detectors used in XRPD varying from films to cameras to diffractometers.

CONT

Powder X-Ray Diffraction. Powders of crystalline materials diffract X-Rays. A beam of X-rays passing through a sample of randomly-oriented micro-crystals produces a pattern of rings on a distant screen. Powder X-Ray diffraction provides less information than single-crystal diffraction, however, it is much simpler and faster. Powder X-Ray diffraction is useful for confirming the identity of a solid material and determining crystallinity and phase purity. Modern powder X-Ray diffractometers consist of an X-Ray source, a movable sample platform, an X-Ray detector, and associated computer-controlled electronics. The sample is either packed into a shallow cup-shaped holder or deposited as a slurry onto a quartz substrate, and the sample holder spins slowly during the experiment to reduce sample heating. The X-Ray source is usually the same as used in single-crystal diffractometers, Mo or Cu. The X-Ray beam is fixed and the sample platform rotates with respect to the beam by an angle theta. The detector rotates at twice the rate of the sample and is at an angle of 2 theta with respect to the incoming X-Ray beam.

CONT

Fine particles such as clays must be separated from larger particles and measured separately if they are to be detected properly. To reduce errors associated with preferred orientation of minerals, samples are most commonly ground to a powder before analysis, a technique known as powder X-ray diffraction.

CONT

X-ray powder diffraction (XRD) is a direct method for qualitative and quantitative characterization of fine-grained materials such as clinker and cement, and may also be used for analysis of raw materials. Each phase produces a unique diffraction pattern independent of others, with the intensity of each pattern proportional to that phases concentration in a mixture.

Key term(s)
  • x-rays powder diffraction
  • x rays powder diffraction
  • x ray powder diffraction
  • powder x-rays diffraction
  • powder x rays diffraction
  • powder x ray diffraction

French

Domaine(s)
  • Physique radiologique et applications
  • Minéralogie
CONT

Diffraction de rayons sur poudres : analyse quantitative de composés modèles du ciment anhydre. [...] Ce stage sera consacré à la caractérisation par diffraction des rayons X de mélanges d'alites de synthèse M1 et M3. La méthode expérimentale utilisée sera la diffraction des rayons X sur poudres jointe aux autres méthodes de laboratoire associées.

CONT

À l'aide de la diffraction de rayons X de poudres, différentes formes polymorphiques peuvent être détectées pour des molécules à activité pharmacologique.

Key term(s)
  • diffraction de rayons-X sur poudres

Spanish

Save record 8

Record 9 1998-10-07

English

Subject field(s)
  • Fires and Explosions
DEF

That part of a flame projection that extends from its point of ignition back to the aerosol container.

CONT

Flash back occurs when a trail of flammable gas, vapour or aerosol is ignited by a distant spark, flame or other source of ignition. The flame then travels back along the trail of gas, vapour or aerosol to its source. A serious fire or explosion could result.

French

Domaine(s)
  • Feux et explosions
DEF

Dans les feux de liquides inflammables, mouvement de la flamme tendant à remonter de la source d'inflammation au récipient de liquide.

CONT

Un retour de flamme se produit lorsqu'un gaz, une vapeur ou un aérosol inflammable, se propageant sur une certaine distance, rejoint une source de feu (étincelle ou flamme) et s'enflamme. La flamme fait alors le trajet à rebours jusqu'à la source de gaz, de vapeur ou d'aérosol et risque de causer une explosion ou un incendie grave.

Spanish

Campo(s) temático(s)
  • Fuegos y explosiones
Save record 9

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