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FREQUENCY INDEX [11 records]
Record 1 - internal organization data 2025-04-30
Record 1, English
Record 1, Subject field(s)
- Scientific Measurements and Analyses
- General Mechanics (Physics)
- Ultrasonography
Record 1, Main entry term, English
- mechanical index
1, record 1, English, mechanical%20index
correct, noun
Record 1, Abbreviations, English
- MI 1, record 1, English, MI
correct, noun
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The non-thermal biological effects of ultrasound imaging(e. g., pressure, cavitation) are assessed using the mechanical index(MI), defined as the maximum value of the peak negative pressure divided by the square root of the acoustic center frequency... 1, record 1, English, - mechanical%20index
Record 1, French
Record 1, Domaine(s)
- Mesures et analyse (Sciences)
- Mécanique générale (Physique)
- Ultrasonographie
Record 1, Main entry term, French
- indice mécanique
1, record 1, French, indice%20m%C3%A9canique
correct, masculine noun
Record 1, Abbreviations, French
- MI 2, record 1, French, MI
correct, masculine noun
- IM 3, record 1, French, IM
correct, masculine noun
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
L'indice mécanique correspond au rapport de la valeur maximale du faisceau ultrasonore, quelle qu'en soit la pression de raréfaction atténuée, à la racine carrée de la fréquence du transducteur, la pression et la fréquence étant exprimées en mégapascals (MPa) et en mégahertz (MHz), respectivement. 2, record 1, French, - indice%20m%C3%A9canique
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2025-04-07
Record 2, English
Record 2, Subject field(s)
- Telecommunications Transmission
- Military Communications
- Waveguides
Record 2, Main entry term, English
- maximum usable frequency
1, record 2, English, maximum%20usable%20frequency
correct, noun, NATO, standardized
Record 2, Abbreviations, English
- MUF 2, record 2, English, MUF
correct, noun, NATO, standardized
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 OBS
In radio transmission, maximum usable frequency(MUF) is the highest radio frequency that can be used for transmission between two points on Earth by reflection from the ionosphere... at a specified time, independent of transmitter power. This index is especially useful for shortwave transmissions. 3, record 2, English, - maximum%20usable%20frequency
Record number: 2, Textual support number: 2 OBS
maximum usable frequency; MUF: designations standardized by NATO. 4, record 2, English, - maximum%20usable%20frequency
Record 2, French
Record 2, Domaine(s)
- Transmission (Télécommunications)
- Transmissions militaires
- Guides d'ondes
Record 2, Main entry term, French
- fréquence maximale utilisable
1, record 2, French, fr%C3%A9quence%20maximale%20utilisable
correct, feminine noun, NATO, standardized
Record 2, Abbreviations, French
- MUF 2, record 2, French, MUF
correct, feminine noun
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 OBS
fréquence maximale utilisable : désignation normalisée par l'OTAN. 3, record 2, French, - fr%C3%A9quence%20maximale%20utilisable
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Transmisión (Telecomunicaciones)
- Comunicaciones militares
- Guías de ondas
Record 2, Main entry term, Spanish
- máxima frecuencia utilizable
1, record 2, Spanish, m%C3%A1xima%20frecuencia%20utilizable
correct, feminine noun
Record 2, Abbreviations, Spanish
- MUF 1, record 2, Spanish, MUF
feminine noun
Record 2, Synonyms, Spanish
- frecuencia máxima utilizable 2, record 2, Spanish, frecuencia%20m%C3%A1xima%20utilizable
correct, feminine noun
- MUF 3, record 2, Spanish, MUF
feminine noun
- MUF 3, record 2, Spanish, MUF
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 DEF
Frecuencia másl alta que puede ser utilizada en un momento determinado para la propagación entre dos puntos específicos mediante reflexión ionosférica. 1, record 2, Spanish, - m%C3%A1xima%20frecuencia%20utilizable
Record 2, Key term(s)
- MUF de explotación
Record 3 - internal organization data 2014-05-14
Record 3, English
Record 3, Subject field(s)
- Government Accounting
Record 3, Main entry term, English
- activity index
1, record 3, English, activity%20index
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
The activity index indicates the frequency of use, or the number of months the advance is actually used and reimbursement is claimed during the review period. 2, record 3, English, - activity%20index
Record 3, French
Record 3, Domaine(s)
- Comptabilité publique
Record 3, Main entry term, French
- index des activités
1, record 3, French, index%20des%20activit%C3%A9s
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2014-02-04
Record 4, English
Record 4, Subject field(s)
- Records Management (Management)
- Document Classification (Library Science)
- Data Banks and Databases
Record 4, Main entry term, English
- extraction indexing
1, record 4, English, extraction%20indexing
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
- indexing by extraction 2, record 4, English, indexing%20by%20extraction
correct
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
The simplest method for indexing articles for bibliographic databases is extraction indexing, in which terms are extracted from the text of the article for inclusion in the index. The frequency of words in the article is determined, and the words which are found most often are included in the index. Alternatively, the words which occur most often in the article compared to their occurrence in the rest of the database, or in normal language, are included. 1, record 4, English, - extraction%20indexing
Record 4, French
Record 4, Domaine(s)
- Gestion des documents (Gestion)
- Classification des documents (Bibliothéconomie)
- Banques et bases de données
Record 4, Main entry term, French
- indexation par extraction
1, record 4, French, indexation%20par%20extraction
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
L'indexation par extraction, souvent automatique, est essentiellement fondée sur les mots qui sont présents dans un document source de nature textuelle. 2, record 4, French, - indexation%20par%20extraction
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2012-02-20
Record 5, English
Record 5, Subject field(s)
- Climatology
Record 5, Main entry term, English
- Climate Severity Index
1, record 5, English, Climate%20Severity%20Index
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- Environment Canada National Climate Severity Index 3, record 5, English, Environment%20Canada%20National%20Climate%20Severity%20Index
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
Index intended to compare the climates of different locations in Canada based on four factors of discomfort, psychological effect, hazard and outdoor mobility. The higher the number, the more severe the climate is in that area. The lower the score, the more ideal the climate. 4, record 5, English, - Climate%20Severity%20Index
Record number: 5, Textual support number: 1 CONT
Ten years ago the federal government asked David Phillips, senior climatologist at Environment Canada, to come up with a reliable comparison of weather extremes across the country. He took into account such factors as extreme cold, the frequency of blowing snow and freezing rain, as well as hours of daylight. He also looked at warm weather nasties such as extreme heat, humidity and thunderstorms. The result of all this work was the Climate Severity Index. 5, record 5, English, - Climate%20Severity%20Index
Record 5, French
Record 5, Domaine(s)
- Climatologie
Record 5, Main entry term, French
- indice de rigueur du climat
1, record 5, French, indice%20de%20rigueur%20du%20climat
masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 OBS
Nombre résumant divers inconvénients du climat canadien. D'après un ouvrage de D.W. Phillips et R.B. Crowe, publié par Environnement Canada 1, record 5, French, - indice%20de%20rigueur%20du%20climat
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 2011-03-09
Record 6, English
Record 6, Subject field(s)
- Special-Language Phraseology
- Optics
Record 6, Main entry term, English
- wavelength of light
1, record 6, English, wavelength%20of%20light
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
- light wavelength 2, record 6, English, light%20wavelength
correct
Record 6, Textual support, English
Record number: 6, Textual support number: 1 CONT
Fluorescence microscopy analysis involves the use of certain wavelengths of light to cause fluorescence in chemical materials. Different materials will fluoresce differently enabling a skilled analyst to identify different materials. 3, record 6, English, - wavelength%20of%20light
Record number: 6, Textual support number: 2 CONT
Scientists have found that the index of refraction varies with the frequency of radiation(or wavelength) of light. 4, record 6, English, - wavelength%20of%20light
Record number: 6, Textual support number: 3 CONT
The spectrum relevant for marine aquariums starts at 350 nm (nanometer = measuring unit for light wavelength) with the colours violet, blue (400 to 500 nm), green, yellow (500 to 600 nm), orange-red (600 to 700 nm) and deep red (800 nm). 5, record 6, English, - wavelength%20of%20light
Record number: 6, Textual support number: 4 CONT
[Title of experiment:] Measurement of Wavelengths of Light with a Diffraction Grating. 5, record 6, English, - wavelength%20of%20light
Record 6, French
Record 6, Domaine(s)
- Phraséologie des langues de spécialité
- Optique
Record 6, Main entry term, French
- longueur d'onde de la lumière
1, record 6, French, longueur%20d%27onde%20de%20la%20lumi%C3%A8re
correct, feminine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
- longueur d'onde lumineuse 2, record 6, French, longueur%20d%27onde%20lumineuse
correct, feminine noun
Record 6, Textual support, French
Record number: 6, Textual support number: 1 CONT
Afin de déterminer plus précisément la pression ou la température à laquelle le cristal est soumis, il faut étudier le spectre de la lumière reflétée à l'aide d'un spectroscope, qui permettra de déterminer la longueur d'onde de la lumière reflétée par le cristal. 3, record 6, French, - longueur%20d%27onde%20de%20la%20lumi%C3%A8re
Record number: 6, Textual support number: 2 CONT
Dans la représentation de Poincaré, le dispositif quart d'onde a simplement effectué une rotation de 90 degrés du méridien sur l'équateur autour de l'axe de ses lignes neutres qui sont suivant un axe équatorial orthogonal à l'axe formé des directions parallèles et perpendiculaires au plan de l'interféromètre. Ce déphasage, devenu orientation de polarisation, dépend directement de la différence de chemin optique entre les deux bras de l'interféromètre : une rotation de 180° de la polarisation correspond à un déplacement d'une demi-longueur d'onde lumineuse de l'objet. 4, record 6, French, - longueur%20d%27onde%20de%20la%20lumi%C3%A8re
Record number: 6, Textual support number: 3 CONT
[...] on fait tomber un faisceau lumineux sur un petit diaphragme dont le diamètre est de l'ordre de grandeur de la longueur d'onde lumineuse. 5, record 6, French, - longueur%20d%27onde%20de%20la%20lumi%C3%A8re
Record number: 6, Textual support number: 1 OBS
La fluorescence est la propriété que possèdent certaines molécules d'absorber la lumière à certaines longueurs d'ondes (c'est-à-dire correspondant à un certaine couleur) et de réemettre une lumière à une autre longueur d'onde. [...] Selon la relation de base : W = hn (où h = constante de Planck; n = fréquence de la lumière) comme n=C/1 (où C = vitesse de la lumière; 1 = longueur d'onde), on voit que la lumière absorbée pour porter la molécule au niveau excité a une longueur d'onde 11, différente de la lumière émise au retour à l'état de repos final de longueur d'onde 13 = 12-10. La «couleur» de la lumière est donc différente. La gamme des longueurs d'ondes absorbées définit le spectre d'absorption (appelé aussi «spectre d'excitation») du fluorochrome, celle des longueurs d'ondes émises le spectre d'émission. 6, record 6, French, - longueur%20d%27onde%20de%20la%20lumi%C3%A8re
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 2010-06-09
Record 7, English
Record 7, Subject field(s)
- Nervous System
Record 7, Main entry term, English
- headache unit index
1, record 7, English, headache%20unit%20index
correct
Record 7, Abbreviations, English
- HUI 1, record 7, English, HUI
correct
Record 7, Synonyms, English
Record 7, Textual support, English
Record number: 7, Textual support number: 1 CONT
Values reflecting efficacy were the frequency, severity and persistency of acute migraine attacks expressed as Headache Unit Index(HUI) and the therapeutic medication required for acute attacks during the study expressed as the Relief Medication Unit Index(RMUI). 1, record 7, English, - headache%20unit%20index
Record 7, French
Record 7, Domaine(s)
- Système nerveux
Record 7, Main entry term, French
- indice unitaire de céphalées
1, record 7, French, indice%20unitaire%20de%20c%C3%A9phal%C3%A9es
proposal, masculine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - external organization data 2009-07-30
Record 8, English
Record 8, Subject field(s)
- Compartment - ISO/IEC JTC 1 Information Technology Vocabulary
Universal entry(ies) Record 8
Record 8, Main entry term, English
- minimum shift keying
1, record 8, English, minimum%20shift%20keying
correct, standardized
Record 8, Abbreviations, English
- MSK 1, record 8, English, MSK
correct, standardized
Record 8, Synonyms, English
Record 8, Textual support, English
Record number: 8, Textual support number: 1 DEF
form of two-condition frequency shift keying with modulation index equal to 0, 5, in which variations are continuous [IEC 60050-702, 702-06-49] 1, record 8, English, - minimum%20shift%20keying
Record number: 8, Textual support number: 1 OBS
minimum shift keying; MSK: term, abbreviation and definition standardized by ISO/IEC [ISO/IEC 19762-4:2008]. 2, record 8, English, - minimum%20shift%20keying
Record 8, French
Record 8, Textual support, French
Record 8, Spanish
Record 8, Textual support, Spanish
Record 9 - internal organization data 2003-05-14
Record 9, English
Record 9, Subject field(s)
- Radiotelephony
- Telephone Metering
Record 9, Main entry term, English
- articulation index
1, record 9, English, articulation%20index
correct
Record 9, Abbreviations, English
- AI 1, record 9, English, AI
correct
Record 9, Synonyms, English
- articulation value 2, record 9, English, articulation%20value
Record 9, Textual support, English
Record number: 9, Textual support number: 1 CONT
... the Articulation Index was developed by Bell Telephone Laboratories in the 1940's. AI is based on the idea that the response of a speech communication system can be divided into twenty frequency bands, each of which carries an independent contribution to the intelligibility of the system, and that the total contribution of all the bands is the sum of the contributions of the individual bands. 3, record 9, English, - articulation%20index
Record 9, French
Record 9, Domaine(s)
- Radiotéléphonie
- Téléphonométrie
Record 9, Main entry term, French
- indice de netteté
1, record 9, French, indice%20de%20nettet%C3%A9
masculine noun
Record 9, Abbreviations, French
- IN 1, record 9, French, IN
masculine noun
Record 9, Synonyms, French
- indice de netteté d'un circuit téléphonique 2, record 9, French, indice%20de%20nettet%C3%A9%20d%27un%20circuit%20t%C3%A9l%C3%A9phonique
masculine noun
- IN 2, record 9, French, IN
masculine noun
- IN 2, record 9, French, IN
- valeur de netteté 3, record 9, French, valeur%20de%20nettet%C3%A9
feminine noun
Record 9, Textual support, French
Record 9, Spanish
Record 9, Textual support, Spanish
Record 10 - internal organization data 2002-10-03
Record 10, English
Record 10, Subject field(s)
- Computer Graphics
- Telecommunications Transmission
- Audiovisual Techniques and Equipment
- Video Technology
Record 10, Main entry term, English
- audio sequence
1, record 10, English, audio%20sequence
correct
Record 10, Abbreviations, English
Record 10, Synonyms, English
Record 10, Textual support, English
Record number: 10, Textual support number: 1 DEF
A non-interrupted series of audio frames in which the following parameters are not changed : ID, layer, sampling frequency, bitrate index for layer I and II. 1, record 10, English, - audio%20sequence
Record 10, French
Record 10, Domaine(s)
- Infographie
- Transmission (Télécommunications)
- Audiovisuel (techniques et équipement)
- Vidéotechnique
Record 10, Main entry term, French
- séquence audio
1, record 10, French, s%C3%A9quence%20audio
correct, feminine noun
Record 10, Abbreviations, French
Record 10, Synonyms, French
Record 10, Textual support, French
Record number: 10, Textual support number: 1 DEF
Suite ininterrompue de trames audio dans laquelle les paramètres suivants sont constants : - ID, - couche, - fréquence d'échantillonnage, - pour les Couches I et II : indice de débit binaire. 1, record 10, French, - s%C3%A9quence%20audio
Record number: 10, Textual support number: 1 OBS
Record 10, Spanish
Record 10, Textual support, Spanish
Record 11 - internal organization data 2001-06-21
Record 11, English
Record 11, Subject field(s)
- Lasers and Masers
- Optics
- Flight Instruments and Equipment (Aeroindustry)
Record 11, Main entry term, English
- index of refraction of the laser medium
1, record 11, English, index%20of%20refraction%20of%20the%20laser%20medium
correct
Record 11, Abbreviations, English
Record 11, Synonyms, English
Record 11, Textual support, English
Record number: 11, Textual support number: 1 CONT
Mode pulling or scale factor effects are caused by changes in the index of refraction of the laser medium by dispersion effects of the laser gas. These effects degrade the stability and reproducibility of the RLG [ring laser gyro] scale factor, which is the relationship between the rotation rate(input) and beat frequency(output). 1, record 11, English, - index%20of%20refraction%20of%20the%20laser%20medium
Record 11, French
Record 11, Domaine(s)
- Masers et lasers
- Optique
- Instruments et équipement de bord (Constructions aéronautiques)
Record 11, Main entry term, French
- indice de réfraction du milieu
1, record 11, French, indice%20de%20r%C3%A9fraction%20du%20milieu
correct, masculine noun
Record 11, Abbreviations, French
Record 11, Synonyms, French
Record 11, Textual support, French
Record number: 11, Textual support number: 1 CONT
Interactions laser-plasma dans le domaine relativiste [...] le comportement relativiste des électrons du plasma peut provoquer un phénomène très appréciable, car il permet d'accroître considérablement l'éclairement au foyer du laser; il s'agit de l'autofocalisation relativiste. Ce phénomène s'accompagne également du guidage du faisceau laser dans le plasma. L'autofocalisation du laser résulte d'une modification locale de l'indice de réfraction du milieu, induite par une augmentation de la masse des électrons libres du plasma. Dans ces conditions, le plasma se comporte comme une lentille convergente additionnelle qui s'oppose à la divergence naturelle du faisceau et produit une succession de «super foyers» où l'éclairement laser est encore accru d'un ordre de grandeur. 1, record 11, French, - indice%20de%20r%C3%A9fraction%20du%20milieu
Record number: 11, Textual support number: 1 PHR
Modification locale de l'indice de réfraction du milieu. 1, record 11, French, - indice%20de%20r%C3%A9fraction%20du%20milieu
Record 11, Key term(s)
- indice de réfraction du milieu laser
Record 11, Spanish
Record 11, Textual support, Spanish
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