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FUNDAMENTAL UNITS [14 records]

Record 1 2018-05-02

English

Subject field(s)
  • Information Processing (Informatics)
CONT

We could use a ’trinary’ system with three digits – 0, 1 and 2 – and then the fundamental units would be trinary digits, or trits...

French

Domaine(s)
  • Traitement de l'information (Informatique)

Spanish

Save record 1

Record 2 2017-11-24

English

Subject field(s)
  • International Bodies and Committees
  • Metrology and Units of Measure
OBS

The "General Conference on Weights and Measures"("Conférence Générale des Poids et Mesures", "CGPM") is made up of delegates of the governments of the Member States and observers from the Associates of the "CGPM". The General Conference receives the report of the International Committee for Weights and Measures(CIPM) on work accomplished; it discusses and examines the arrangements required to ensure the propagation and improvement of the International System of Units(SI) ;it endorses the results of new fundamental metrological determinations and various scientific resolutions of international scope; and it decides all major issues concerning the organization and development of the BIPM [Bureau international des poids et mesures, ] including the dotation of the BIPM.

Key term(s)
  • Weights and Measures General Conference

French

Domaine(s)
  • Organismes et comités internationaux
  • Unités de mesure et métrologie
OBS

La «Conférence générale des poids et mesures» («CGPM») rassemble des délégués des États Membres et des observateurs des Associés à la «CGPM». Le rapport du Comité international des poids et mesures (CIPM) sur les travaux accomplis est présenté à la Conférence générale. Celle-ci discute et examine les dispositions à prendre pour assurer l'extension et l'amélioration du Système international d'unités (SI), sanctionne les résultats de nouvelles déterminations métrologiques fondamentales, prend des résolutions scientifiques de portée internationale dans le domaine de la métrologie, et prend aussi des décisions importantes concernant l'organisation, le développement du BIPM [Bureau international des poids et mesures,] et sa dotation.

Spanish

Campo(s) temático(s)
  • Organismos y comités internacionales
  • Metrología y unidades de medida
OBS

Conferencia General de Pesas y Medidas; Conferencia General de Pesos y Medidas; CGPM: La Fundación del Español Urgente (Fundéu BBVA), con el asesoramiento de la Real Academia Española, indica que a la entidad responsable de normalizar las mediciones físicas se la conoce también como "Conferencia General de Pesos y Medidas" (es decir, con "Pesos" en lugar de "Pesas"), forma igualmente válida.

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Record 3 2012-09-21

English

Subject field(s)
  • Biochemistry
CONT

Local interactions between nearby amino acids give rise to alpha helixes, beta sheets or other forms of secondary structure. These subassemblies, acting as more or less coherent units, organize themselves into domains. The geometric arrangement of the domains constitutes the tertiary structure. The presence of the same secondary structures and domains in many dissimilar proteins argues that they are not mere artificial abstractions introduced by the biochemist; on the contrary, they seem to be fundamental units in the evolution and diversification of proteins. Many proteins have a level of organization beyond the tertiary structure. They are composed of multiple polypeptide strands held together by a variety of weak bonds and sometimes further cemented by disulfide linkages.

French

Domaine(s)
  • Biochimie
DEF

Structure spatiale complète d'une protéine, niveau d'organisation supérieur à la structure secondaire déterminé par l'assemblage des formes élémentaires de type [alpha] ou [bêta] selon les trois directions de l'espace et par le pliage de la chaîne, le tout étant stabilisé par des interactions de type non covalent et des ponts disulfure.

CONT

La structure tertiaire d'une protéine globulaire est très complexe et elle peut être déterminée par la diffraction des rayons X. [...] La rupture de la structure tertiaire par des températures élevées ou par d'autres agents s'appelle dénaturation.

Spanish

Campo(s) temático(s)
  • Bioquímica
DEF

Conformación tridimensional que adoptan las macromoléculas completas como resultado de interacciones intramoleculares, tales como puentes de hidrógeno.

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Record 4 - external organization data 2011-06-14

English

Subject field(s)
  • Compartment - ISO/IEC JTC 1 Information Technology Vocabulary
Universal entry(ies)
01.02.03 (2382)
ISO/IEC standard entry number
DEF

<fundamental terms> pertaining to data that consist of numerals as well as to processes and functional units that use those data

OBS

numeric; numerical: terms and definition standardized by ISO/IEC [ISO/IEC 2382-1:1993].

French

Domaine(s)
  • Tiroir - ISO/CEI JTC 1 Vocabulaire des technologies de l'information
Entrée(s) universelle(s)
01.02.03 (2382)
ISO/IEC standard entry number
DEF

qualifie des données représentées par des nombres ainsi que les processus et les unités fonctionnelles qui utilisent ces données

OBS

numérique : terme et définition normalisés par l'ISO/CEI [ISO/IEC 2382-1:1993].

Spanish

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Record 5 - external organization data 2011-06-14

English

Subject field(s)
  • Compartment - ISO/IEC JTC 1 Information Technology Vocabulary
Universal entry(ies)
01.01.47 (2382)
ISO/IEC standard entry number
DEF

<fundamental terms> capability to communicate, execute programs, or transfer data among various functional units in a manner that requires the user to have little or no knowledge of the unique characteristics of those units

OBS

interoperability: term and definition standardized by ISO/IEC [ISO/IEC 2382-1:1993].

French

Domaine(s)
  • Tiroir - ISO/CEI JTC 1 Vocabulaire des technologies de l'information
Entrée(s) universelle(s)
01.01.47 (2382)
ISO/IEC standard entry number
DEF

<termes fondamentaux> possibilité de communication, d'exécution de programmes ou de transfert de données entre unités fonctionnelles différentes, de telle manière que l'utilisateur n'ait que peu ou pas besoin de connaître les caractéristiques propres à chaque unité

OBS

interopérabilité; aptitude à l'interfonctionnement : termes et définition normalisés par l'ISO/CEI [ISO/IEC 2382-1:1993].

Spanish

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Record 6 2011-02-09

English

Subject field(s)
  • Geomorphology and Geomorphogeny
  • Oceanography
DEF

A subaqueous landform, such as the continental slope of the ocean or the foreset bed of a delta.

CONT

A clinoform is a seaward-dipping surface of a prograding sediment body that consists of a gently dipping topset, a steeply dipping foreset, and a gently dipping bottomset. The topset consists of fluvial and subaqueous environments coupled at the shoreline. Clinoforms are ubiquitous in modern depositional systems and are the fundamental constructional units of stratigraphic sequences.

OBS

In 1951 John L. Rich was the first to propose that the depositional settings of sediment accumulation on the shelf, slope, and bottom be (1) unda for shallow water overlying the shelf, (2) clino for the deeper water overlying the slope, and (3) fondo for the deepest water covering the bottom of the basin (Friedman (2001). Rich suggested the terms (1) undaform for any surface underlying an unda environment; (2) clinoform for any surface underlying a clino environment; (3) fondoform for any surface underlying a fondo environment. ... Following this approach Mitchum (1977) proposed that clinoform surface be used for the sloping depositional surface that is commonly associated with strata prograding into deep water.

OBS

clinoform: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Géomorphologie et géomorphogénie
  • Océanographie
DEF

Partie moyenne d'une configuration d'une sédimentation se développant latéralement.

CONT

[...] chacun de ces types de clinoforme possède une répartition de faciès et une architecture qui lui est propre, en particulier pour ce qui concerne l'angle des clinoformes, le partitionnement des dépôts de part et d'autre de la bordure de la plate-forme au sein des cycles A/S (accommodation/production sédimentaire), l'évolution des paramètres paléoécologiques et des systèmes biosédimentaires, etc.

OBS

[Il s'agit d'une] forme morphologique progradante en oblique par rapport au substratum d'une aire de dépôt sur la zone frontale du talus littoral ou deltaïque.

OBS

clinoforme : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Campo(s) temático(s)
  • Geomorfología y geomorfogénesis
  • Oceanografía
DEF

Forma subacuática inclinada de la plataforma marina que se extiende desde el nivel de baje del oleaje [...] hacia su parte más profunda.

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Record 7 2009-07-29

English

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

A system of electrical and mechanical units in which length, mass, time, and electric current are the fundamental quantities, and the units of these quantities are the meter, the kilogram, the second, and the ampere repesctively.

Key term(s)
  • metre kilogramme second ampere system
  • meter kilogram second ampere system

French

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

Spanish

Campo(s) temático(s)
  • Medición eléctrica
  • Metrología y unidades de medida
Save record 7

Record 8 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

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Record 9 2006-04-03

English

Subject field(s)
  • Health Institutions
OBS

Two pulse temporal resolution, hereafter referred to as 2PR, is a measure of the ability of the visual system to resolve two brief pulses of light presented in succession and to the same retinal locus.(H. H. Mikalia, Department of Psychology, University of New Brunswick, "An Investigation of the Effects of Video Display Units of Fundamental Visual Processes : Temporal Resolution and Contrast Sensitivity Function, "Fredericton, N. B.).

French

Domaine(s)
  • Établissements de santé
OBS

Pluriel : des stimulus, des stimuli.

OBS

stimulus (pl.) : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2006).

Spanish

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Record 10 2003-11-18

English

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

The internationally accepted form of the metric system whose fundamental units are the metre, kilogram, second, ampere, kelvin, and candela.

CONT

Units ... derived [from the electrostatic and the electromagnetic systems of units] are often referred to in terms of the SI units with [a] prefix ...

OBS

SI unit; international unit: terms usually used in the plural (SI units; international units).

Key term(s)
  • SI units
  • international units

French

Domaine(s)
  • Unités de mesure et métrologie
DEF

Forme acceptée internationalement du système métrique, dont les unités fondamentales sont le mètre, le kilogramme, la seconde, l'ampère, le kelvin et la candela.

CONT

On appelle «unités SI» l'ensemble (cohérent) des unités de base, des unités supplémentaires et des unités dérivées du Système international d'unités.

OBS

unité SI; unité internationale : termes habituellement utilisés au pluriel (unités SI; unités internationales).

Key term(s)
  • unités SI
  • unités internationales

Spanish

Campo(s) temático(s)
  • Metrología y unidades de medida
DEF

Forma aceptada internacionalmente del sistema métrico en el que las unidades fundamentales son el metro, el kilogramo, el segundo, el amperio, el kelvin y la candela.

OBS

unidad SI; unidad internacional: términos utilizados generalmente en el plural (unidades SI; unidades internacionales).

Key term(s)
  • unidades SI
  • unidades internacionales
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Record 11 2001-10-19

English

Subject field(s)
  • Orbital Stations
  • Research Experiments in Space
CONT

Japanese Experiment Module "Kibo". The SPCF(Solution Protein Crystal Growth Facility)... can provide opportunities for fundamental study of crystal growth of various solutions and proteins in space. SPCF consists of two major units, the Solution Crystallization Observation Facility(SCOF) and the Protein Crystallization Research Facility(PCRF). The SCOF has a cell cartridge for growing the crystal in solution. The temperature of crystal can be controlled. Moreover the SCOF provides the in-situ observation capability. The SCOF has several observation equipment, the two wavelength Mach-Zehnder interferometer microscope, the Michelson interferometer microscope and the light scattering measurement. They provide the capability to observe the crystallization morphology and the crystal surface and to measure the temperature of the liquid phase, the concentration distribution and the particle size.

CONT

The Solution Crystallization Observation Facility (SCOF) is installed in a 1/4 DR [drawer] space in the JEM [Japanese Experiment Module]. The SCOF consists of the main unit and a removable unit (cell cartridge), which can contain a maxximum of 4 sets of crystal growth cells. The main unit contains various observation apparatus, and various experiments that can be executed by changing the cell cartridges.

OBS

solution crystallization observation facility; SCOF: term and abbreviation officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
  • Travaux de recherche dans l'espace
OBS

bloc d'observation de la croissance des cristaux en solution; SCOF : terme et abréviation uniformisés par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

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Record 12 1996-02-07

English

Subject field(s)
  • Mathematics
DEF

The construction of a square whose area is equal to a definite integral.

CONT

One preoccupation of the Greeks was known as quadrature, or squaring : finding the area of a closed shape in the plane. The word quadrature refers to the nature of the problem : to express the area of any shape in terms of units of area-that is, squares. To the Greeks that meant the given shape had to be transformed into an equivalent one whose area could be found from fundamental principles.... The quadrature of any polygon follows immediately, because a polygon can always be dissected into triangles. Among the more intriguing... problems of mathematics has been the squaring of curved figures.

French

Domaine(s)
  • Mathématiques
CONT

Les anciens Grecs ne calculaient pas les mesures des aires, mais les comparaient entre elles en déterminant leurs rapports. En particulier, ils comparaient les aires des surfaces à frontière curviligne aux aires des surfaces à frontière rectiligne. La quadrature d'une surface est étymologiquement la construction par la règle et le compas d'un carré ayant même aire que la surface considérée.

Spanish

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Record 13 1986-11-12

English

Subject field(s)
  • Diagnostic Procedures (Medicine)
  • The Eye
OBS

Determination if trial is to be "catch"... After selecting a usable target pair, a random decision was made whether to present a 2P2(two pulse temporal resolution) trial or a catch trial(one trial in tar).(H. H Mikaelian, Dept. of Psychology, U. of New Brunswick, "An Investigation of the Effects of Video Display Units on Fundamental Visual Processes : Temporal Resolution and Contrast Sensitivity Function", Fredericton, N. B.)

French

Domaine(s)
  • Méthodes diagnostiques (Médecine)
  • Oeil

Spanish

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Record 14 1986-11-12

English

Subject field(s)
  • The Eye
OBS

Since temporal resolution is of fundamental importance in the processing of visually presented information... it was thought that changes in visuo-temporal mediation produced by videotext would have appreciable effects on subsequent visual performance.(H. H. Mikaelian, Dept. of Psychology, U. of New Brunswick, "An Investigation of the Effects of Video Display Units on Fundamental Visual Processes : Temporal Resolution and Contrast Sensitivity Function", Fredericton, N. B.).

French

Domaine(s)
  • Oeil

Spanish

Save record 14

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