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H HOUR [22 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2023-11-27

English

Subject field(s)
  • Road Networks
CONT

A transition wedge should be provided to improve the safety of exit movements(sometimes entering movements, too) on rural highway intersections having a maximum design speed of 60 km/h [kilometres per hour], when speed-changing lanes are not warranted.

French

Domaine(s)
  • Réseaux routiers
CONT

Un biseau de transition devrait être aménagé aux intersections rurales où la vitesse de base est d'au plus 60 km/h [kilomètres à l'heure], lorsqu'une voie de changement de vitesse n'est pas justifiée.

Spanish

Save record 1

Record 2 2023-08-03

English

Subject field(s)
  • Metrology and Units of Measure
CONT

The meter per second is the derived unit of speed in the International System of Units(SI). The meter per second(m/s) is equal to 3. 6 kilometers per hour(km/h), or about 2. 236936 miles per hour(mph), or 3. 28084 feet per second(ft/s), or 39. 370079 inches per second(in/s) or 1. 943844 knots(kn). The speed is the distance traveled by an object during a period of time. Thus, meters per second(meters/second) show how many meters are traveled in one second. The meter is a unit of length in the metric system[, ] while the second is a unit of time.

OBS

metre per second; meter per second; meter/second: designations usually used in the plural.

Key term(s)
  • metres per second
  • meters per second
  • meters/second

French

Domaine(s)
  • Unités de mesure et métrologie
OBS

mètre par seconde : désignation habituellement utilisée au pluriel.

Key term(s)
  • mètres par seconde

Spanish

Save record 2

Record 3 2015-09-30

English

Subject field(s)
  • Construction Materials
DEF

The replacement of one complete house volume of air by either natural or mechanical means(measured in air changes per hour : ac/h).

French

Domaine(s)
  • Matériaux de construction
DEF

Remplacement intégral de l’air à l’intérieur d’une maison, par des moyens naturels ou mécaniques, généralement exprimé en nombre de renouvellements d’air par heure.

Spanish

Save record 3

Record 4 - external organization data 2014-11-03

English

Subject field(s)
  • Compartment - Canadian Nuclear Safety Commission
Universal entry(ies)
Sv
symbol
ImC
avoid, symbol, obsolete
DEF

The special name of the unit of dose equivalent and of effective dose equivalent ...

OBS

A dose rate as a measurement of the radiation level would be given as a sievert per unit of time(i. e. sievert per hour or Sv/h). The sievert replaces the rem; 1 sievert equals 100 rem.

OBS

sievert: term standardized by the International Electrotechnical Commission (IEC).

Key term(s)
  • millicurie of intensity hour

French

Domaine(s)
  • Tiroir - Commission canadienne de sûreté nucléaire
Entrée(s) universelle(s)
Sv
symbol
ImC
avoid, symbol, obsolete
DEF

Nom spécial du joule par kilogramme à utiliser comme unité SI [Système international d'unités] d'équivalent de dose.

CONT

Un équivalent de dose de 1 sievert d'un rayonnement donné produit sur un organe humain les mêmes effets qu'une dose de 1 gray de rayons X d'une énergie de 250 KeV absorbée par le même organe.

OBS

[Sievert est l']unité SI de mesure d'équivalent de dose de rayonnement ionisant (symb. Sv).

OBS

1 Sv =1 J.kg-1 (= 100 rem).

OBS

sievert : terme normalisé par la Commission électrotechnique internationale (CEI).

Key term(s)
  • intensité en millicuries

Spanish

Save record 4

Record 5 2012-04-18

English

Subject field(s)
  • Road Traffic
  • Road Design
  • Mass Transit
DEF

The total traffic flow in vehicles per hour which a transport facility is designed to carry.

CONT

Design volume. Traffic elements evaluated in planning important highway projects include :...(5) a design hour volume. Because the movement of traffic is not uniform throughout the day and night, street and highway improvements must be designed for peak flows, and the interval of time generally used for the design period is 1 h.

OBS

hourly traffic flow for design; design hourly volume: terms proposed by the World Road Association.

French

Domaine(s)
  • Circulation routière
  • Conception des voies de circulation
  • Transports en commun
DEF

Débit (en véhicules/heure ou unités de véhicules particulier/heure) utilisé pour déterminer les dimensions de la route (souvent le «débit de 30e heure»).

OBS

débit horaire de base : terme et définition proposés par l'Association mondiale de la route.

Spanish

Campo(s) temático(s)
  • Tránsito vial
  • Diseño de carreteras
  • Transporte público
DEF

Intensidad de circulación, expresada en vehículos por hora o en unidades de vehículos ligeros por hora, en la que se basa el proyecto y dimensionamiento de la vía o carretera.

OBS

Suele tomarse la intensidad de la "hora 30" (intensidad sólo superada en el 30 por 100 del tiempo) en un diagrama de intensidades clasificadas.

OBS

intensidad horaria de proyecto; intensidad de la hora 30: Términos y definición propuestos por la Asociación Mundial de la Carretera.

Save record 5

Record 6 2012-02-20

English

Subject field(s)
  • Pre-Fire Planning
DEF

The relative activity of a fire in extending its horizontal dimensions ... expressed either as [a] rate or increase of the fire perimeter, as a rate of increase in area, or as a rate of advance of its head, depending on the intended use of the information ...

OBS

Recommended SI units are metres per minute(m/min) and kilometres per hour(km/h)(1. 0 m/min is equivalent to 0. 06 km/h).

OBS

"Rate of fire spread" has a broader meaning than "flame propagation rate" and "flame velocity (or speed)". They are often used interchangeably, however, because the latter terms serve as measuring indices for the spread of the fire.

Key term(s)
  • fire spreading rate

French

Domaine(s)
  • Prévision des incendies
DEF

Vitesse relative à laquelle un incendie accroît ses dimensions horizontales.

OBS

Elle peut s'exprimer en taux d'accroissement du périmètre total de l'incendie, en taux d'avance du front de l'incendie, ou en taux d'accroissement en superficie, selon l'usage auquel ces données sont destinées.

OBS

[Elle est] exprimée en distance par unité de temps (m/min ou km/h).

Spanish

Save record 6

Record 7 2010-08-26

English

Subject field(s)
  • Metrology and Units of Measure
  • Thermodynamics
CONT

Btu/h(British thermal unit per hour) is a measure of the output of a heating or cooling system, the amount of heat required to raise or lower the temperature of a pound of water by a single degree fahrenheit. One Btu is the amount of heat energy given off by a typical birthday candle. The heat energy released by a candle over the course of one hour is the equivalent of one Btu/h.

CONT

How you can calculate the British thermal unit per hour of any compressor?

CONT

one Btu per hour; 1 million Btuh is equivalent to 7 gallons of oil per hour, 800 pounds of steam per hour, or a boiler input of 20 boiler horse-power (BoHP).

French

Domaine(s)
  • Unités de mesure et métrologie
  • Thermodynamique
CONT

Un Btu/h (de l'anglais «British thermal unit per hour») est l'unité servant à mesurer le rendement calorifique des systèmes de chauffage. Un Btu correspond à la quantité de chaleur que dégage une chandelle du genre de celles qui servent à décorer les gâteaux d'anniversaire. Si cette quantité d'énergie était libérée en une heure, elle équivaudrait à un Btu/h.

CONT

L'annexe 2000 au mazout [...] puissance à la sortie (sans ventilateur) 28 500 BTUH.

OBS

BTU; B.T.U. : Quantité de chaleur nécessaire pour élever de 1 °F la température de 1 lb (un «pound» ou livre) d'eau à 60 °F sous une pression de 30 in (30 pouces [ou] 762 mm exactement de mercure.

Key term(s)
  • BTU par heure
  • BTU heure
  • B.T.U. par heure
  • B.T.U. heure
  • B.T.U./h
  • B.T.U./heure

Spanish

Save record 7

Record 8 2008-02-13

English

Subject field(s)
  • Trailers and Hauling
  • Water Treatment (Water Supply)
  • Field Engineering (Military)
CONT

Our water purification trailers provide... sterilisation with a 3 t/h [ton per hour] purification rate, fulfilling the basic need for drinking water.

Key term(s)
  • water-purification trailer

French

Domaine(s)
  • Remorques et remorquage
  • Traitement des eaux
  • Génie (Militaire)

Spanish

Save record 8

Record 9 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 9

Record 10 2007-10-16

English

Subject field(s)
  • Road Traffic
OBS

vehicles per hour; veh/h : term and abbreviation officially approved by the Department of National Defence and the Canadian Forces.

French

Domaine(s)
  • Circulation routière
OBS

véhicules par heure; véh/h : terme et abréviation uniformisés par le ministère de la Défense nationale et les Forces canadiennes.

Spanish

Save record 10

Record 11 2007-08-31

English

Subject field(s)
  • Metrology and Units of Measure
  • Measurements of Electricity
CONT

The watt-hour(symbol W·h or Wh) is a unit of energy. It is most commonly used on household electricity meters in the form of the kilowatt-hour(kW·h or kWh), which is 1, 000 watt-hours. It is not used in the International System of Units(SI), despite being based on the watt, as the hour is not a SI unit. The SI unit of energy is the joule(J), equal to one watt-second. It is, however, a commonly used unit, especially for measuring electric energy. 1 watt-hour is equivalent to 3, 600 joules(1 W x 3600 s), the joule being the canonical SI unit of energy. Thus a kilowatt-hour is 3, 600, 000 joules or 3. 6 megajoules.... The kilowatt-hour is commonly used for electrical and natural gas energy. Many electric utility companies use the kilowatt-hour for billing.

OBS

Megawatt-hours are used for metering of larger amounts of electrical energy. For example, a power plant’s daily output is likely to be measured in megawatt-hours.

OBS

plural: kilowatt-hours or kilowatthours. Lots of variants can be found, but they should be avoided: kilowattshours, kilowatts hour, kilowatts hours, kilowatt hours, kilowatts-hour, kilowatts-hours, kilowatts/hour, kilowatts/hours, kilowatt/hours.

French

Domaine(s)
  • Unités de mesure et métrologie
  • Mesures de grandeurs électriques
DEF

Unité d'énergie ou de travail équivalant au travail accompli pendant une heure par une machine d'une puissance de 1000 watts.

OBS

Unité utilisée pour la facturation de l'énergie électrique.

OBS

Au pluriel : des kilowattheures ou des kilowatts-heures. À éviter : kilowatts-heure, kilowatt-heures, kilowatts heure, kilowatts heures, kilowatt heures, kilowatts/heure, kilowatts/heures, kilowatt/heures.

Spanish

Save record 11

Record 12 2007-08-31

English

Subject field(s)
  • Metrology and Units of Measure
  • Measurements of Electricity
DEF

The electrical energy developed during 1 hour by a power of 1 watt, equal to 3,600 joules.

CONT

The watt-hour(symbol W·h or Wh) is a unit of energy. It is most commonly used on household electricity meters in the form of the kilowatt-hour(kW·h or kWh), which is 1, 000 watt-hours. It is not used in the International System of Units(SI), despite being based on the watt, as the hour is not a SI unit. The SI unit of energy is the joule(J), equal to one watt-second. It is, however, a commonly used unit, especially for measuring electric energy. 1 watt-hour is equivalent to 3, 600 joules(1 W x 3600 s), the joule being the canonical SI unit of energy. Thus a kilowatt-hour is 3, 600, 000 joules or 3. 6 megajoules.

CONT

... a 50 Wh battery can sustain a 10 watt load for 5 hours.

OBS

plural: watt-hours or watthours. Lots of variants can be found, but they should be avoided: wattshours, watts hour, watts hours, watt hours, watts-hour, watts-hours, watts/hour, watts/hours, watt/hours.

French

Domaine(s)
  • Unités de mesure et métrologie
  • Mesures de grandeurs électriques
DEF

Énergie de 3 600 joules, mise en jeu pendant 1 heure, par une puissance d'un watt.

OBS

Au pluriel : des wattheures ou des watts-heures. À éviter : watts-heure, watt-heures, watts heure, watts heures, watt heures, watts/heure, watts/heures, watt/heures.

Spanish

Save record 12

Record 13 2005-05-03

English

Subject field(s)
  • Brush, Prairie and Forest Fires
DEF

The speed at which a fire increases its perimeter, expressed in terms of distance per unit of time.

OBS

Recommended SI units are "metres per minute"(m/min) and "kilometers per hour"(km/h).

French

Domaine(s)
  • Incendies de végétation
DEF

Vitesse à laquelle le périmètre d'un incendie s'accroît, exprimée en distance par unité de temps.

Spanish

Save record 13

Record 14 2005-05-03

English

Subject field(s)
  • Brush, Prairie and Forest Fires
DEF

The speed at which a fire increases its size, expressed in terms of area per unit of time.

OBS

Recommended SI unit is "hectares per hour"(ha/h).

French

Domaine(s)
  • Incendies de végétation
DEF

Vitesse à laquelle la superficie d'un incendie s'accroît, exprimée en surface par unité de temps.

Spanish

Save record 14

Record 15 2004-03-26

English

Subject field(s)
  • Spacecraft
CONT

The Centre National d’Etudes Spatiales, CNES(French Space Agency) took a spectacular picture of the European ERS-1 satellite via SPOT 4, the most recent optical observation satellite in the SPOT family, which was launched on 24 March 1998.... From its orbit at an altitude of 820 km, SPOT 4 is able to pick out details of 10 metres on the Earth's surface, which is moving at a speed of 24, 000 km per hour. The ERS-1 orbit is 41 km below that of SPOT, which means that the latter can distinguish details of 50 cm in size on ERS-1. However, since ERS-1 flies much lower it flies faster than SPOT 4 and overtakes it with a relative velocity of about 250 km/h.

French

Domaine(s)
  • Engins spatiaux
CONT

Le Centre National d'Études Spatiales (CNES) a réalisé une prise de vue spectaculaire du satellite européen ERS-1 grâce à SPOT 4, le plus récent satellite d'observation optique de la famille SPOT, lancé le 24 mars 1998. [...] Depuis son orbite à 820 km d'altitude, SPOT 4 est conçu pour distinguer des détails de 10 mètres sur des paysages terrestres qui défilent à 24 000 km/h. ERS-1 parcourt une orbite qui passe 41 km sous celle de SPOT; cette proximité permet à SPOT 4 de distinguer sur ERS-1 des détails de 50 cm. En revanche, volant plus bas, ERS-1 est plus rapide et double SPOT 4 à la vitesse relative d'environ 250 km/h.

PHR

Satellite d'observation optique visible et infrarouge.

Spanish

Save record 15

Record 16 2002-04-25

English

Subject field(s)
  • Optics
  • Lasers and Masers
  • Flight Instruments and Equipment (Aeroindustry)
CONT

Lock-in is a fundamental physical phenomenon associated with all oscillating devices. Laser gyros exibit the same phenomenon, in that the coupling mechanism is the reflection of light from one laser beam back along the path where it interacts with the oppositley traveling beam. This is called backscatter and is caused primarily by imperfect mirrors. Therefore, at low rotation rates, there is no frequency difference between the counter-rotating beams so that the gyroscope does not indicate any rotation. In spite of the ring laser gyro's dead zone whith lock-in thresholds on the order of hundreds of degrees per hour, it is still feasible to obtain measurements of rotation rates of less than 1 deg/h.

Key term(s)
  • RLG dead zone

French

Domaine(s)
  • Optique
  • Masers et lasers
  • Instruments et équipement de bord (Constructions aéronautiques)
DEF

Zone dans laquelle le gyroscope ne détecte pas le mouvement lorsque la vitesse de rotation est faible.

CONT

Le gyrolaser [...] Défauts [...] un phénomène de couplage fait que les ondes restent synchronisées tant que leurs fréquences ne sont pas suffisamment éloignées. Il en résulte que, pour de faibles vitesses angulaires (inférieures à 100°/s) [...] le dispositif ne détecte rien : c'est la zone aveugle. Pour pallier cette difficulté, les constructeurs ont envisagé plusieurs solutions : soit donner une vitesse de rotation constante à l'appareil, suffisante pour qu'il se trouve en dehors de la zone aveugle [...]; soit faire vibrer l'appareil [...] et ne procéder aux mesures que lorsque le système est en dehors de la zone aveugle; soit [...] provoquer un équivalent statistique du pivotement mécanique permanent en introduisant dans le trajet des ondes un élément perturbateur (tel qu'une cellule Kerr), qui induit un glissement de phase; s'il est suffisant, le gyrolaser travaille dans la zone non perturbée.

Key term(s)
  • zone aveugle pour vitesse de rotation faible

Spanish

Save record 16

Record 17 2001-04-20

English

Subject field(s)
  • Endocrine System and Metabolism
CONT

In most patient with growth hormone(GH) secreting pituitary adenomas and clinically nonfunctioning pituitary tumors(NFPT) the intravenous injection of thyrotropin releasing hormone(TRH) augments the secretion of GH and subunits of gonatropin hormones respectively. Similar hormone responses to TRH have been detected in rat pituitary cell lines and primary human pituitary tumor cultures in vitro. Nevertheless the TRH effect on tumor hormonal secretion has not been well characterized. In the present study we examined TRH-induced hormone secretion in GH secreting tumors and in NFPT in vitro. Cultured cells secreted betaFSH secretion at 60 to 90 min, with no further increase at 34 h. TRH-stimulated GH secretion peaked at 90-120 min, and decreased after 3 h, but a secondary rise occurred after 24 h of incubation. Chronic daily exposure to TRH followed by an acute TRH challenge resulted in a further increase of GH secretion after one hour.

OBS

TRH is a tonic secretagogue in growth hormone secreting but not in nonfunctioning pituitary tumors.

French

Domaine(s)
  • Systèmes endocrinien et métabolique
CONT

L'injection intra-veineuse de TRH (Thyrotropin-Releasing-Hormone), 200ug/IV entraîne une réponse de TRH avec un maximum à 30 minutes. Le test TRH apprécie la réactivité thyréotrope antéhypophysaire qui dépend de l'intégrité des cellules thyréotropes hypophysaires; du niveau d'hormonémie thyroidienne.

Spanish

Save record 17

Record 18 - external organization data 1995-01-05

English

Subject field(s)
  • Metrology and Units of Measure
  • Radiological Physics (Theory and Application)
  • Compartment - Canadian Nuclear Safety Commission
DEF

The metric unit for dose rate. It replaces the rem per hour(rem/h) which was the previously-used unit of measurement.

OBS

One sievert per hour(1Sv/h) equals 100 rem per hour(100 rem/h).

French

Domaine(s)
  • Unités de mesure et métrologie
  • Physique radiologique et applications
  • Tiroir - Commission canadienne de sûreté nucléaire
DEF

Unité internationale de débit de dose du Système international qui remplace le rem par heure (rem/h) [...]

OBS

[...] 1 sievert par heure (1Sv/h) équivaut à 100 rem par heure (100 rem/h).

Spanish

Save record 18

Record 19 - external organization data 1995-01-05

English

Subject field(s)
  • Metrology and Units of Measure
  • Radiological Physics (Theory and Application)
  • Compartment - Canadian Nuclear Safety Commission
CONT

Sievert per hour : The metric unit for dose rate. It replaces the rem per hour(rem/h) which was the previously-used unit of measurement.

OBS

One sievert per hour(1Sv/h) equals 100 rem per hour(100 rem/h).

French

Domaine(s)
  • Unités de mesure et métrologie
  • Physique radiologique et applications
  • Tiroir - Commission canadienne de sûreté nucléaire
CONT

Sievert par heure : Unité internationale de débit de dose du Système international qui remplace le rem par heure (rem/h) [...]

OBS

[...] 1 sievert par heure (1Sv/h) équivaut à 100 rem par heure (100 rem/h).

Spanish

Save record 19

Record 20 - external organization data 1994-09-29

English

Subject field(s)
  • Engineering Tests and Reliability
  • Transport of Goods
  • Special Packaging
  • Compartment - Canadian Nuclear Safety Commission
CONT

Water spray test : The exposed surface of the package is uniformly subjected to a spray equivalent to a rainfall of 50 mm/h impinging at an angle of 45° for a period of at least one hour. During this test, the package is supported so that it does not rest in a pool of water, and the spraying arrangement is such that at the conclusion of the test, the entire surface of the package is wet.

French

Domaine(s)
  • Fiabilité, contrôle et essais (Ingénierie)
  • Transport de marchandises
  • Emballages spéciaux
  • Tiroir - Commission canadienne de sûreté nucléaire
CONT

Épreuve d'aspersion d'eau. La surface exposée du colis est uniformément soumise pendant au moins une heure à une aspersion d'eau équivalente à une précipitation de 50 mm/h, la heurtant à un angle de 45°. Durant cette épreuve, le colis repose sur un support afin qu'il ne baigne pas dans une mare d'eau, et l'aspersion est faite de telle sorte qu'à la fin de l'épreuve la totalité de la surface du colis soit mouillée.

Spanish

Save record 20

Record 21 1988-05-05

English

Subject field(s)
  • Analytical Chemistry
  • Environmental Studies and Analyses
  • Air Pollution
CONT

Oxidation rates range from 0. 1% per hour to 10%/h depending on the pressure of catalysts, clouds, reactive photochemical products and ozone.

French

Domaine(s)
  • Chimie analytique
  • Études et analyses environnementales
  • Pollution de l'air

Spanish

Save record 21

Record 22 1985-10-23

English

Subject field(s)
  • Employment Benefits
OBS

5% per annum per saltum-voir saltum 25 miles per hour-25 m/h(Reader's Digest)

French

Domaine(s)
  • Avantages sociaux

Spanish

Save record 22

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