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THRESHOLD DIFFERENCE [14 records]

Record 1 2025-09-11

English

Subject field(s)
  • Customs and Excise
  • Foreign Trade
DEF

The tariff rate appearing in a country’s tariff schedule for a given product.

CONT

Many analysts are turning their interest to non-tariff measures(NTMs) or trade facilitation because nominal tariffs seem too low to make a difference, 5% being sometimes presented as the threshold below which a difference in nominal tariffs does not matter anymore.

French

Domaine(s)
  • Douanes et accise
  • Commerce extérieur
DEF

Taux de droit indiqué dans la liste tarifaire pour un produit donné.

CONT

De nombreux analystes reportent à présent leur attention sur les mesures non tarifaires (MNT) ou la facilitation des échanges, car les droits de douane nominaux semblent trop faibles pour faire une différence, 5 % étant parfois présenté comme la limite au‑dessous de laquelle une différence de droits nominaux n'a plus d'importance.

Spanish

Campo(s) temático(s)
  • Aduana e impuestos internos
  • Comercio exterior
Save record 1

Record 2 2024-02-22

English

Subject field(s)
  • Informatics
OBS

High noise margin device used primarily for industrial applications. Closely resembling DTL, the basic difference is that HTL uses a reverse biased emitter junction as threshold element, operating as Zener diode. Typical noise margin is 6 volts with a 15-volt supply.

French

Domaine(s)
  • Informatique

Spanish

Campo(s) temático(s)
  • Informática
Save record 2

Record 3 2021-02-11

English

Subject field(s)
  • Aircraft Piloting and Navigation
CONT

... the air traffic controller shall not issue the heading instruction to the aircraft below 120 m(400 ft) above the runway threshold elevation, and the heading instruction shall not exceed 45 degrees track difference with the ILS [instrument landing system] localizer course or MLS [mean sea level] final approach track.

French

Domaine(s)
  • Pilotage et navigation aérienne

Spanish

Save record 3

Record 4 2016-03-07

English

Subject field(s)
  • Environmental Studies and Analyses
  • Acoustics (Physics)
  • Ear, Nose and Larynx (Medicine)
DEF

the modal value of the thresholds of hearing of a large number of otologically normal observers between 18 and 25 years of age.

CONT

The decibel difference between the background noises and the normal threshold of audibility is defined as the degree of masking.

French

Domaine(s)
  • Études et analyses environnementales
  • Acoustique (Physique)
  • Oreille, nez et larynx (Médecine)
DEF

seuil normal d'audition : Valeur moyenne du seuil d'audition absolu d'un grand nombre d'auditeurs normaux. [Terme et définition normalisés par l'AFNOR et reproduits avec son autorisation].

OBS

Ne pas confondre avec «seuil normalisé d'audition».

Spanish

Save record 4

Record 5 2013-07-12

English

Subject field(s)
  • Psychometry and Psychotechnology
  • Cognitive Psychology
CONT

To see what Fechner's Scale of Sensation would be like for loudness, for example, we may think of the scale as a ladder. Now let us imagine an experiment. Suppose I turn on a very faint sound, so faint that you cannot hear it. I increase its intensity until it stands just at your absolute threshold, where you can barely hear it. That gives us the first step on the ladder. I now increase the intensity until you say yes, that is louder—louder by a JND [just noticeable difference], which gives us the next step on the ladder.

French

Domaine(s)
  • Psychométrie et psychotechnique
  • Psychologie cognitive
CONT

Échelle de Fechner. Échelle de mesure des sensations élémentaires établie en faisant estimer des différences justes perceptibles entre deux stimulus semblables. (En ordonnant les échelons successifs ainsi observés, on obtient une échelle unidimensionnelle. Fechner a postulé que les échelons ainsi définis correspondent à une grandeur subjective constante).

Spanish

Save record 5

Record 6 2012-07-16

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Psychology (General)
  • Acoustics (Physics)
  • Food Industries
DEF

Value of the smallest perceptible change in the physical intensity of a stimulus.

OBS

difference threshold : term and definition standardized by ISO.

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Psychologie (Généralités)
  • Acoustique (Physique)
  • Industrie de l'alimentation
DEF

Valeur de la plus petite modification perceptible dans l'intensité physique d'un stimulus.

OBS

seuil différentiel : terme et définition normalisés par l'ISO et par l'AFNOR.

Spanish

Save record 6

Record 7 2008-05-23

English

Subject field(s)
  • Telecommunications Transmission
DEF

A technique used by satellite television receivers to improve the signal-to noise ratio of the receiver by approximately 3 db (50%).

OBS

When using small receive-only antennas, an especially equipped receiver with a threshold extension feature can make the difference between obtaining a decent picture or no picture at all.

French

Domaine(s)
  • Transmission (Télécommunications)

Spanish

Campo(s) temático(s)
  • Transmisión (Telecomunicaciones)
Save record 7

Record 8 2003-05-06

English

Subject field(s)
  • Acoustics (Physics)
OBS

difference limen(DL) : The smallest detectable change in a stimulus. Also called the just-noticeable difference or the difference threshold.

OBS

sound pressure level: The level of a sound in decibels relative to an internationally defined reference level.

French

Domaine(s)
  • Acoustique (Physique)
DEF

Pour un auditeur donné et un son pur de fréquence déterminée, dans des conditions de mesure spécifiées, variation minimale du niveau de pression acoustique provoquant une modification de la sonie.

OBS

Terme et définition normalisés par l'AFNOR et reproduits avec son autorisation.

Spanish

Save record 8

Record 9 2001-02-08

English

Subject field(s)
  • Electronic Circuits Technology
DEF

A critical digital IC parameter; it is the difference between the normal operating logic levels and the threshold voltage with a DCM measured in millivolts, not unusual in IC' s; is likely to switch falsely if used in equipment with a higher electrical noise level.

French

Domaine(s)
  • Technologie des circuits électroniques

Spanish

Save record 9

Record 10 2000-06-29

English

Subject field(s)
  • Wireless Telegraphy
DEF

Difference, expressed in decibels, between the sound integrated over a frequency band and the sound pressure level in that band at the threshold of audibility, there being no other disturbing sound.

French

Domaine(s)
  • Radiotélégraphie
DEF

Différence, exprimée en décibels, entre le son intégré sur une bande de fréquences et le niveau de pression acoustique dans cette bande au seuil d'audibilité, en l'absence de tout autre son perturbateur.

Spanish

Save record 10

Record 11 1996-10-21

English

Subject field(s)
  • Noise Pollution
  • Acoustics (Physics)
  • Building Insulation and Acoustical Design
OBS

Personality differences (...) cause noise to produce different degrees of annoyance and irritability (...)

OBS

At a level of 80 decibels, sound is annoying (...)

OBS

The difference between the normal threshold of hearing for a particular age group and the threshold of hearing for a given individual of a comparable age is the measure of the amount of hearing loss suffered by that individual.

French

Domaine(s)
  • Pollution par le bruit
  • Acoustique (Physique)
  • Isolation et acoustique architecturale
CONT

Cherchant à déterminer l'indice de gêne, la Commission de lutte contre le bruit du ministère de la Santé a abouti à cette conclusion: un bruit doit être retenu comme une gêne lorsqu'il dépasse localement de plus de trois décibels, la nuit, et de cinq décibels, le jour, le niveau sonore moyen, c'est-à-dire l'ambiance sonore moyenne dans laquelle le sujet est habitué à vivre ou à travailler.

Spanish

Save record 11

Record 12 1994-07-15

English

Subject field(s)
  • Artificial Intelligence
DEF

Threshold for which the result depends on comparison of a joint local property and a characteristic pixel value with a single decision value.

CONT

Threshold is based on comparing the difference between pixel value and neighborhood value with a global value.

French

Domaine(s)
  • Intelligence artificielle
OBS

Projet de norme ISO sur la visionique.

Spanish

Save record 12

Record 13 1989-07-23

English

Subject field(s)
  • Artificial Intelligence
  • Software
DEF

A variation on the basic McCulloch-Pitts neural cell. The important difference is that an inhibitory line carries no more importance than the excitatory input and the sym of the active inhibitory inputs is equal to or greater than the threshold value of the cell.

French

Domaine(s)
  • Intelligence artificielle
  • Logiciels
OBS

Voir "pondération", "modèle linéaire".

Spanish

Save record 13

Record 14 1985-10-01

English

Subject field(s)
  • Optics
  • The Eye
DEF

Luminance which has to be added, by superposition, to the luminance of both the adapting background and the object in order to make the luminance difference threshold in the absence of disability glare the same as that experienced in the presence of disability glare.

French

Domaine(s)
  • Optique
  • Oeil
DEF

Luminance qui doit être ajoutée, par superposition, à celle du fond d'adaptation et de l'objet afin que le seuil différentiel de luminance en l'absence d'éblouissement perturbateur devienne le même que celui qui existe dans les conditions d'éblouissement perturbateur.

Spanish

Save record 14

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