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METRES PER SECOND [19 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2022-06-03

English

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

The flood fringe includes all other areas within the flood hazard area that are not considered floodway, that would have relatively shallow water depth(less than 1 m) and relatively low flow velocities(less than 1 m/s [metres per second]).

French

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

Le périmètre d'inondation comprend toutes les autres zones de la zone inondable qui ne sont pas considérées comme un canal d'évacuation des crues, dont l'eau aurait une profondeur relativement faible (moins de 1 m) et dont les vitesses d'écoulement seraient relativement faibles (moins de 1 m/s [mètres par seconde])

Spanish

Save record 1

Record 2 2018-12-06

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Fire Safety
DEF

The surface area of a material burned divided by time under specified test conditions.

OBS

The typical units are square metres per second...

OBS

area burning rate: term and definition standardized by ISO.

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Sécurité incendie
DEF

Surface brûlée d'un matériau divisée par le temps dans des conditions d'essai spécifiées.

OBS

Elle est exprimée en mètres carrés par seconde [...]

OBS

vitesse de combustion en surface; vitesse surfacique de combustion : termes et définition normalisés par l'ISO.

Spanish

Campo(s) temático(s)
  • Medición y análisis (Ciencias)
  • Seguridad contra incendios
DEF

Área de la superficie de un material quemado dividida por el tiempo bajo condiciones especificadas de ensayo.

Save record 2

Record 3 2018-03-14

English

Subject field(s)
  • Electric Rotary Machines - Types
  • Wind Energy
CONT

These are the Darrieus rotor and the Savionus rotor. The Darrieus type consists of two or more blades arranged about a central shaft and shaped like a rotating rope, or "tropaskien", to minimize stresses on rotation.

CONT

The most recent vertical wind turbine is based on a machine patented in 1931 by the French engineer G. J. M. Darrieus. Its two blades consist of twisted metal strips tied to the shaft at the top and bottom and bowed out in the middle similar to the blades of a food mixer. A Darrieus turbine with aluminum blades erected in 1980 by the Sandia National Laboratories in New Mexico produced 60 kilowatts in a wind blowing 12. 5 metres per second.

French

Domaine(s)
  • Machines tournantes électriques - types
  • Énergie éolienne
DEF

Éolienne à axe vertical [...] dont les pales, généralement biconvexes, reliées rigidement les unes aux autres et tournant autour d'un axe vertical, ont la même allure que la partie mobile d'un batteur à œufs.

CONT

L'éolienne moderne : il s'agit de la turbine Darrieus fondée sur un concept original inventé par l'ingénieur français J. Darrieus dans les années 1920, puis oublié et réinventé vers 1970. Le rotor Darrieus comporte un axe vertical, alors que les éoliennes traditionnelles présentent un rotor en forme d'hélice fixé sur un axe horizontal. Ce parc d'aérogénérateurs Darrieus se trouve en Californie.

Spanish

Campo(s) temático(s)
  • Máquinas rotativas eléctricas - tipos
  • Energía eólica
Save record 3

Record 4 2015-04-29

English

Subject field(s)
  • Atomic Physics
DEF

The cross-section for interaction by thermal neutrons.

OBS

Since thermal neutrons have different energy distributions in different situations(e. g. at different temperatures), this is not a precise term, and for this reason cross-sections for 2200 m/s [metres per second] neutrons are commonly quoted.

OBS

thermal cross-section: term and definition standardized by ISO.

French

Domaine(s)
  • Physique atomique
DEF

Section efficace pour les interactions avec les neutrons thermiques.

OBS

Les neutrons thermiques ayant des distributions en énergie différentes suivant les cas (par exemple aux différentes températures), ce terme n'est pas précis et pour cette raison ces sections efficaces sont communément rapportées à des neutrons de 2 200 m/s [mètres par seconde].

OBS

section efficace thermique : terme et définition normalisés par l'ISO.

Spanish

Save record 4

Record 5 2013-06-27

English

Subject field(s)
  • Aerodynamics and Theory of Gases
  • Wind Energy
DEF

An increase in wind speed induced by terrain features, such as the curvature of a hill.

CONT

Speed up effects : Tunnel effect. If you push an ordinary bicycle air pump,... you will notice that the air leaving the nozzle moves much faster than the speed with which you are pushing. The reason, of course, is that the nozzle is much narrower than the cylinder in the pump. If you take a walk between tall buildings, or in a narrow mountain pass, you will notice that the same effect is working : the air becomes compressed on the windy side of the buildings or mountains, and its speed increases considerably between the obstacles to the wind. This is known as a "tunnel effect. "So, even if the general wind speed in open terrain may be, say, 6 metres per second, it can easily reach 9 metres per second in a natural "tunnel. "Placing a wind turbine in such a tunnel is one clever way of obtaining higher wind speeds than in the surrounding areas.

French

Domaine(s)
  • Théorie des gaz et aérodynamique
  • Énergie éolienne
DEF

Augmentation de la vitesse du vent résultant des particularités physiques d'un site, telles que la courbe d'une colline.

CONT

[L']effet accélérateur [est un] phénomène cinétique propre à un site dont la rugosité de surface est telle qu'elle engendre une accélération de la vitesse du vent, permettant à l'éolienne installée sur ce site de capter une énergie cinétique du vent plus importante.

Spanish

Campo(s) temático(s)
  • Aerodinámica y teoría de los gases
  • Energía eólica
Save record 5

Record 6 2013-06-27

English

Subject field(s)
  • Mechanical Components
  • Wind Energy
DEF

A speed-up effect created by wind pressure in a natural corridor which allows a wind turbine to harness wind kinetic energy stronger than in the surrounding area.

CONT

Speed up effects : Tunnel effect. If you push an ordinary bicycle air pump,... you will notice that the air leaving the nozzle moves much faster than the speed with which you are pushing. The reason, of course, is that the nozzle is much narrower than the cylinder in the pump. If you take a walk between tall buildings, or in a narrow mountain pass, you will notice that the same effect is working : the air becomes compressed on the windy side of the buildings or mountains, and its speed increases considerably between the obstacles to the wind. This is known as a "tunnel effect. "So, even if the general wind speed in open terrain may be, say, 6 metres per second, it can easily reach 9 meters per second in a natural "tunnel". Placing a wind turbine in such a tunnel is one clever way of obtaining higher wind speeds than in the surrounding areas.

French

Domaine(s)
  • Composants mécaniques
  • Énergie éolienne
DEF

Effet accélérateur engendré par la compression du vent dans un couloir naturel et qui permet à l'éolienne qui y est installée de capter une énergie cinétique du vent supérieure à celle de la zone ambiante.

Spanish

Campo(s) temático(s)
  • Componentes mecánicos
  • Energía eólica
CONT

Efecto túnel. Si tomamos un camino entre dos edificios altos o en un paso estrecho entre montañas observaremos que el aire al pasar a su través se comprime en la parte de los edificios o de la montaña que está expuesta al viento, y su velocidad crece considerablemente entre los obstáculos del viento. Esto es lo que se conoce como efecto túnel.

Save record 6

Record 7 2011-09-01

English

Subject field(s)
  • Fires and Explosions
DEF

A no-blast explosion; the combustion rate reaches several hundred metres per second.

French

Domaine(s)
  • Feux et explosions
DEF

Explosion sans souffle (taux de combustion d'environ plusieurs centaines de mètres/seconde).

Spanish

Campo(s) temático(s)
  • Fuegos y explosiones
Save record 7

Record 8 2007-12-12

English

Subject field(s)
  • Radar, Radio Guidance and Goniometry
  • Air Defence
CONT

A low level intruder flying at 400 metres per second will travel eight kilometres in 20 seconds. If radar detection occurs at 16 kilometres, and a six second delay prior to firing is assumed, the target is already at 13.

Key term(s)
  • low-level intruder
  • low level target
  • low altitude target
  • low flying target

French

Domaine(s)
  • Radar, radioguidage et radiogoniométrie
  • Défense aérienne

Spanish

Save record 8

Record 9 2007-11-07

English

Subject field(s)
  • Weapon Systems
CONT

A low level intruder flying at 400 metres per second will travel eight kilometres in 20 seconds. If radar detection occurs at 16 kilometres, and a six second delay prior to firing is assumed, the target is already at 13.

French

Domaine(s)
  • Systèmes d'armes

Spanish

Save record 9

Record 10 2007-10-25

English

Subject field(s)
  • Electromagnetic Radiation
DEF

The speed at which light and other magnetic waves travel through empty space.

CONT

The velocity of light is 2.9979 x 108 m/s.

CONT

The speed of light in a vacuum is an important physical constant denoted by the letter c for "constant" or the Latin word "celeritas" meaning "swiftness". It is the speed of all electromagnetic radiations, including visible light, in a vacuum. More generally, it is the speed of anything having zero rest mass.... In metric units, the speed of light is exactly 299, 792, 458 metres per second(1, 079, 252, 848. 8 km/h). The fundamental SI unit of length, the metre, has been defined since October 21, 1983, as the distance light travels in a vacuum in 1/299, 792, 458 of a second; any increase in the precision of the measurement of the speed of light would refine the definition of the metre, but not alter the numerical value of c. The approximate value of 3x108 m/s is commonly used in rough estimates. In imperial units, the speed of light is about 670, 616, 629. 2 miles per hour or 983, 571, 056 feet per second, which is about 186, 282, 397 miles per second, or roughly one foot per nanosecond. The speed of light when it passes through a transparent or translucent material medium, like glass or air, is slower than its speed in a vacuum. The ratio of c to the observed phase velocity is called the refractive index of the medium.

French

Domaine(s)
  • Rayonnements électromagnétiques
DEF

Vitesse de propagation de la lumière dans le vide.

CONT

La vitesse de la lumière est 2.9979 x 108 m/s.

Spanish

Save record 10

Record 11 2007-04-12

English

Subject field(s)
  • Sports (General)
  • Track and Field
CONT

Wind gauge reading dates back to 1938 when the IAAF stipulated that no record was to be ratified without the system. It is used in the 100 and 200 m, the long jump and the triple jump. To ratify a record, the maximum tailwind allowed has to be 2 metres per second.

French

Domaine(s)
  • Sports (Généralités)
  • Athlétisme
CONT

Un anémomètre, utilisé depuis 1938, est un appareil qui mesure et enregistre la vitesse du vent. Il est utilisé pour les courses de moins de 200 m, pour le saut en longueur et le triple saut. La vitesse d'un vent arrière favorable doit être inférieure à 2 m par seconde pour homologuer un record.

Spanish

Save record 11

Record 12 2000-09-27

English

Subject field(s)
  • Dredging
CONT

6 metres per second, that bucket hoisting speed be as slow as possible when working in fine, noncohesive material and that no attempts be made to level the dredged surface by dragging the bucket.

French

Domaine(s)
  • Dragage
CONT

Ainsi, il sera particulièrement important de régler la vitesse de descente de la benne à moins de 0,6 m/s, de minimaliser la vitesse de remontée du godet ou de la pelle lorsque des matériaux fins et non cohésifs sont dragués et de renoncer à la pratique d'aplanir la surface excavée en traînant la benne.

Spanish

Save record 12

Record 13 1995-04-21

English

Subject field(s)
  • Missiles and Rockets
OBS

... the BGM-71F Tow 2B, which carries twin... explosively-formed penetrator warheads. Like a shaped charge, this type of warhead is based upon a combination of explosives and metal. They use the Miznay Schardin effect to create a slug of metal capable of travelling a long distance along a stable flight path at a speed of around 2000 metres per second.

French

Domaine(s)
  • Missiles et roquettes

Spanish

Save record 13

Record 14 1993-10-25

English

Subject field(s)
  • Deck Department (Naval Forces)
  • Shipbuilding
DEF

The maximum speed(in metres per second) that can be maintained by the winch when it is applying the drum load.

French

Domaine(s)
  • Service du pont (Forces navales)
  • Constructions navales
DEF

Vitesse maximale (en mètre par seconde) dont le treuil est capable sous l'effort au tambour.

Spanish

Save record 14

Record 15 1993-10-25

English

Subject field(s)
  • Deck Department (Naval Forces)
  • Shipbuilding
DEF

The maximum rope speed(in metres per second) that the winch can maintain with the rope wound on the drum in a single layer, and with negligible tension on the rope, normally not more than 10 % of the drum load.

French

Domaine(s)
  • Service du pont (Forces navales)
  • Constructions navales
DEF

Vitesse maximale (en mètres par seconde), mesurée sur la première couche d'enroulement, dont le treuil est capable avec une tension du câble négligeable ne dépassant pas normalement 10 % de l'effort au tambour.

Spanish

Save record 15

Record 16 1993-10-06

English

Subject field(s)
  • Acoustics (Physics)
DEF

The complex ratio of the velocity, taken at one point in a mechanical system, to the force, taken at another point in the same system, during simple harmonic motion.

OBS

Transfer mobility is the frequency-response function formed by the ratio, in metres per newton second, of the velocity-response phasor at point i to the excitation forces phasor applied at point j with all points other than j allowed to respond freely without any constraints other than those constraints which represent the normal support of the structure in its intended application.

French

Domaine(s)
  • Acoustique (Physique)
DEF

Rapport complexe de la vitesse prise en un point d'un système mécanique à la force mesurée en un autre point dans le même système pendant un mouvement harmonique simple.

OBS

La mobilité de transfert est la fonction de réponse en fréquence constituée par le rapport, exprimé en mètre par newton seconde, du vecteur tournant de la réponse en vitesse au point i, au vecteur tournant de la force d'excitation appliquée au point j, tous les points autres que j pouvant répondre librement sans autre contrainte que celle que représente le support normal de la structure dans l'application prévue par cette structure.

Spanish

Save record 16

Record 17 1993-10-05

English

Subject field(s)
  • Acoustics (Physics)
DEF

The r. m. s. value of the ratio, in metres per newton second, of the magnitude of the velocity response at point i to the magnitude of the exciting force at the same point, averaged over specified frequency bands.

French

Domaine(s)
  • Acoustique (Physique)
DEF

Valeur quadratique moyenne du rapport, en mètres par newton seconde, de l'amplitude de la réponse en vitesse au point i, à l'amplitude de la force d'excitation au même point, moyennée sur des bandes de fréquences spécifiés.

Spanish

Save record 17

Record 18 1991-05-13

English

Subject field(s)
  • Small Arms
DEF

Measure of a projectile's speed, normally expressed in metres per second(m/s). Velocity is function of the calibre, weight and shape of the bullet, powder charge, primer, quality and length of the barrel. NOTE. In modern usage, the precise distance at which the projectile's velocity(V) has been measured is usually also indicated, e. g. V0-velocity at 0 metre(muzzle), V24-velocity measured at 24 metres, V300-remaining velocity at 300 metres.

OBS

Term and definition officialized by the Small Arms Terminology Working Group.

French

Domaine(s)
  • Armes légères
DEF

Mesure de la vitesse d'un projectile, normalement exprimée en mètres par seconde (m/s). La vitesse est fonction du calibre, du poids et de la forme de la balle, de la charge, de l'amorce, de la qualité et de la longueur du canon. NOTE. Dans la pratique courante, la distance précise à laquelle la vitesse (V) de la balle a été mesurée est aussi normalement indiquée, e.g. V0 - vitesse initiale (à la bouche), V24 - vitesse mesurée à 24 mètres, V300 - vitesse restante à 300 mètres.

OBS

Terme et définition uniformisés par le Groupe de travail de terminologie des armes légères.

Spanish

Save record 18

Record 19 1988-10-31

English

Subject field(s)
  • Airborne Forces
  • Skydiving, Paragliding and Hang Gliding
DEF

The vertical velocity, in metres per second of a descending object.

OBS

the route of descent with a line over will be faster than normal, although many jumpers have landed safely under a partial malfunction.

French

Domaine(s)
  • Forces aéroportées
  • Parachutisme, parapente et deltaplane
DEF

Vitesse verticale, en mètres par seconde, d'un objet qui descend.

OBS

(...) pour cette dernière raison [raréfaction de l'air] le parachute est long à s'épanouir et la vitesse de chute est plus grande qu'à basse altitude.

Spanish

Save record 19

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