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INITIAL PEAK [11 records]

Record 1 2022-01-05

English

Subject field(s)
  • Animal Husbandry
CONT

Starting from the end of gestation there is a phase of rapid cellular activation, followed by cellular regression(cellular remodelling), at varying rates, that ends with the cessation of lactation or dry-off... All of these physiological mechanisms result in a typical pattern of milk yield over time..., characterized by an initial phase of increasing production which reaches a maximum(lactation peak) and then declines more or less rapidly until dry-off.

French

Domaine(s)
  • Élevage des animaux
CONT

Bien surveiller les vaches du vêlage au pic de lactation et plus particulièrement à partir de la 3e semaine vu leurs besoins élevés.

Spanish

Save record 1

Record 2 2014-12-10

English

Subject field(s)
  • Measurements of Electricity
  • Coils and Windings (Electrical Components)
  • Electric Rotary Machines
DEF

The peak value reached by the current in the armature winding within a half of a cycle after the winding has been suddenly short-circuited, when conditions are such that the initial value of any aperiodic component of current is a maximum.

OBS

maximum aperiodic short-circuit current: term and definition standardized by the International Electrotechnical Commission (IEC) in 1996.

French

Domaine(s)
  • Mesures de grandeurs électriques
  • Bobines et bobinage (Composants électrotechniques)
  • Machines tournantes électriques
DEF

Valeur de crête atteinte au cours de la première demi-période par le courant dans l'enroulement d'induit mis brusquement en court-circuit, lorsque les conditions sont telles que la valeur initiale de la composante apériodique du courant, si elle existe, est maximale.

OBS

courant maximal apériodique de court-circuit : terme et définition normalisés par la Commission électrotechnique internationale (CEI) en 1996.

Spanish

Campo(s) temático(s)
  • Medida de la electricidad
  • Bobinas y bobinados (Componentes eléctricos)
  • Máquinas rotativas eléctricas
DEF

Valor de cresta alcanzado por la corriente en el devanado inducido durante el primer semiperíodo después de haber sido puesto bruscamente en cortocircuito, cuando las condiciones son tales que el valor inicial de la componente aperiódica de la corriente es máximo.

Save record 2

Record 3 2012-01-09

English

Subject field(s)
  • Radiological Physics (Theory and Application)
  • Scientific Instruments
  • Analytical Chemistry
CONT

Detection efficiency. The intrinsic detection efficiency of any device operated in pulse mode is defined as the probability that a quantum of radiation incident on the detector will produce a recorded pulse. Especially for radiations of low intensity, a high detection efficiency is important to minimize the total time needed to record enough pulses for good statistical accuracy in the measurement. Detection efficiency is further subdivided into two types : total efficiency and peak efficiency. The total efficiency gives the probability that an incident quantum of radiation produces a pulse, regardless of size, from the detector. The peak efficiency is defined as the probability that the quantum will deposit all its initial energy in the detector. Since there are almost always ways in which the quantum may deposit only part of its energy and then escape from the detector, the total efficiency is generally larger than the peak efficiency.

OBS

This excerpt can be found in an article entitled “Radiation measurement” in the Britannica Encyclopaedia online.

French

Domaine(s)
  • Physique radiologique et applications
  • Instruments scientifiques
  • Chimie analytique
CONT

Parmi toutes les particules émises par la source, une fraction seulement arrive dans le détecteur (en fonction de l’angle solide, des absorbants éventuels entre la source et le détecteur) et, parmi celles-ci, toutes n’intéragissent pas dans son volume utile (cas des photons en particulier). Pour accéder au nombre de particules émises par la source, il faut donc connaître l’efficacité du détecteur utilisé pour les particules détectées. On distingue : — l’efficacité absolue […] l’efficacité intrinsèque […] souvent on ne s’intéresse qu’à la surface des pics. On parle alors d’efficacité au pic (absolue ou intrinsèque).

Spanish

Save record 3

Record 4 2009-10-15

English

Subject field(s)
  • Atomic Physics
DEF

A nuclear particle that has the same source of energy.

CONT

For a monoenergetic particle, the initial energy spectrum usually consists of a sharp, well-defined peak. The smaller the fraction of the initial energy lost by the slowing down particle, the better its final energy definition as well.

French

Domaine(s)
  • Physique atomique
DEF

Particule nucléaire provenant de la même source d'énergie.

Spanish

Save record 4

Record 5 2008-08-15

English

Subject field(s)
  • Air Defence
  • Paradrop and Airdrop
DEF

initial force : A force peak resulting from the completion of that portion of a parachute canopy inflation process wherein the canopy fills from the skirt to the vent.

OBS

Under normal loading conditions, this is not the maximum opening force for a solid flat circular canopy, but is the maximum for canopies of the extended-skirt and geometric-porosity type.

CONT

Reefing assembly for a circular parachute: A reefing assembly for a circular parachute having a canopy including a skirt portion, and suspension lines attached to the skirt portion. The assembly includes a tension structure bounding a central opening and having a plurality of straight segments. A plurality of cords, each cord having two ends, are each fixed to one end of one of the tension structure straight segments to define a loop, and a plurality of rings slidably disposed on each of the loops. Each of the rings is slidably connected to at least one of the suspension lines. The rings are clustered together at a central portion of their respective loops, and upon deployment of the canopy, slide along their respective loops to become substantially equidistantly disposed on their respective loops. The assembly facilitates a restrained opening of the canopy and thereby reduces opening shock load.

French

Domaine(s)
  • Défense aérienne
  • Parachutage et largage

Spanish

Campo(s) temático(s)
  • Defensa aérea
  • Lanzamiento aéreo y por paracaídas
Save record 5

Record 6 - external organization data 2005-08-25

English

Subject field(s)
  • Atomic Physics
  • Nuclear Fission Reactors
  • Compartment - Canadian Nuclear Safety Commission
CONT

Any power reduction causes a transient xenon peak. The smaller the power reduction the smaller the peak, and the earlier it occurs. For example, on a power reduction from 100% to 60%, there is still an initial excess of production over loss, but significant neutron flux remains to burn out the xenon. The peak height and its duration are reduced, and the peak occurs earlier.

French

Domaine(s)
  • Physique atomique
  • Réacteurs nucléaires de fission
  • Tiroir - Commission canadienne de sûreté nucléaire
CONT

Toute réduction de puissance cause un pic de xénon transitoire. Plus la réduction de puissance est faible, plus le pic est faible et plus il se produit rapidement. Par exemple, pour une réduction de puissance de 100 % à 60 %, il y a encore une production en excès initial par rapport aux pertes, mais un flux de neutron important demeure pour effectuer la combustion du xénon. La hauteur du pic et sa durée sont réduites, et le pic survient plus tôt.

Spanish

Save record 6

Record 7 - external organization data 2005-08-25

English

Subject field(s)
  • Physics
  • Nuclear Fission Reactors
  • Compartment - Canadian Nuclear Safety Commission
CONT

Any power reduction causes a transient xenon peak. The smaller the power reduction the smaller the peak, and the earlier it occurs. For example, on a power reduction from 100% to 60%, there is still an initial excess of production over loss, but significant neutron flux remains to burn out the xenon. The peak height and its duration are reduced, and the peak occurs earlier.

French

Domaine(s)
  • Physique
  • Réacteurs nucléaires de fission
  • Tiroir - Commission canadienne de sûreté nucléaire
CONT

Toute réduction de puissance cause un pic de xénon transitoire. Plus la réduction de puissance est faible, plus le pic est faible et plus il se produit rapidement. Par exemple, pour une réduction de puissance de 100 % à 60 %, il y a encore une production en excès initial par rapport aux pertes, mais un flux de neutron important demeure pour effectuer la combustion du xénon. La hauteur du pic et sa durée sont réduites, et le pic survient plus tôt.

Spanish

Save record 7

Record 8 2003-05-28

English

Subject field(s)
  • Analytical Chemistry
  • Biotechnology
CONT

Detection limit : Typically the concentration of the solute peak in the detector is 1/5 to 1/350 of the initial sample concentration at injection because of the dilution factor. For precise quantitation, a tenfold greater concentration than this estimate is needed. Keep in mind that narrow-bore columns dilute small samples less than do large-bore columns.

OBS

Applies also to spectroscopy.

Key term(s)
  • detectable limit

French

Domaine(s)
  • Chimie analytique
  • Biotechnologie
CONT

Le niveau limite de détection, ou seuil de détection, correspond à un signal égal à deux fois le bruit de fond. Cette caractéristique permet de comparer différents détecteurs d'une même famille.

Spanish

Campo(s) temático(s)
  • Química analítica
  • Biotecnología
Save record 8

Record 9 1997-11-28

English

Subject field(s)
  • Analytical Chemistry
CONT

By monitoring a desired adsorption frequency and adjusting the spectrophotometer's chart speed to equal that of a thermal conductivity cell placed in the gas stream, the absorption curves represent integrals of the absorbing components since each successive fraction is accumulated in the infrared cell and the front of the mass or chromatographic peak was matched with the initial increase in adsorbance.

French

Domaine(s)
  • Chimie analytique

Spanish

Save record 9

Record 10 1993-10-18

English

Subject field(s)
  • Acoustics (Physics)
DEF

An ideal shock pulse for which the motion rises instantaneously to a maximum value, after which it decreases linearly to zero.

French

Domaine(s)
  • Acoustique (Physique)
DEF

Choc parfait pour lequel le mouvement croît instantanément jusqu'à une valeur maximale puis décroît linéairement jusqu'à zéro.

Spanish

Save record 10

Record 11 1986-11-20

English

Subject field(s)
  • Epidemiology
OBS

Canada Disease Weekly Report.

French

Domaine(s)
  • Épidémiologie
OBS

Rapport hebdomadaire des maladies au Canada.

Spanish

Save record 11

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