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CENTER LEAD [18 records]

Record 1 2023-08-03

English

Subject field(s)
  • Optical Instruments
  • Medical and Surgical Equipment
CONT

Aperture diaphragm : is the simplest type of beam restricting device. It consists of a sheet of lead with a hole in the center that determines the size and shape of the beam and attaches directly to the x-ray tube.

French

Domaine(s)
  • Instruments d'optique
  • Équipement médico-chirurgical

Spanish

Campo(s) temático(s)
  • Instrumentos ópticos
  • Equipo médico y quirúrgico
Save record 1

Record 2 2022-12-29

English

Subject field(s)
  • Collaboration with the FAO
  • Commercial Fishing
  • Aquaculture
  • Scientific Research
CONT

The main purpose of the fixed seine net for electrofishing is to create a barrier to prevent dead fish from drifting away during electrofishing. The fixed seine is installed across a river during electric fishing. It has no center section. A canvas border can be added at the bottom. [A ballast](pebbles or other) is placed to hold the gear on the bottom. [There are floats] every [two feet] and a double lead core line.

French

Domaine(s)
  • Collaboration avec la FAO
  • Pêche commerciale
  • Aquaculture
  • Recherche scientifique

Spanish

Save record 2

Record 3 2018-05-30

English

Subject field(s)
  • Occupation Names (General)
  • Conferences and Colloquia: Organization
CONT

The conference services manager will be responsible for overseeing the engagement of all clients, guests, vendors, and associates entering the conference center and will lead by example, display an energetic, friendly, and approachable demeanor at all times.

French

Domaine(s)
  • Désignations des emplois (Généralités)
  • Organisation de congrès et de conférences

Spanish

Save record 3

Record 4 2017-07-13

English

Subject field(s)
  • Aircraft Propulsion Systems
  • Closing Devices and Nozzles (Mechanical Components)
DEF

The number of degrees of rotation before top or bottom center at which the intake or exhaust valve opens or closes.

OBS

For example, if an intake valve opens 15 ° before the piston reaches top center on the exhaust stroke, it is said to have a 15 ° valve lead.

OBS

valve lead: term officially approved by the Lexicon Project Committee (New Brunswick).

French

Domaine(s)
  • Propulsion des aéronefs
  • Obturateurs et buses (Composants mécaniques)
OBS

avance à l'ouverture de la soupape : terme uniformisé par le Comité du projet de lexiques (Nouveau-Brunswick).

Spanish

Save record 4

Record 5 2014-04-02

English

Subject field(s)
  • Emergency Management
CONT

In a mass-fatality disaster, [the] coroner takes the lead in managing the mass-fatality operations, including : field investigations; temporary morgue operations... and family assistance center(FAC) services.

OBS

mass-fatality operation; mass fatalities operation: terms usually used in the plural.

Key term(s)
  • mass-fatality operations
  • mass fatalities operations

French

Domaine(s)
  • Gestion des urgences

Spanish

Save record 5

Record 6 2012-09-21

English

Subject field(s)
  • North American Football
CONT

The New England Patriots regained the lead, 23-20, on a quarterback touchdown leap over the center of the line in the fourth quarter of the... championship game against the Baltimore Ravens.

French

Domaine(s)
  • Football nord-américain

Spanish

Save record 6

Record 7 2011-10-04

English

Subject field(s)
  • Track and Field
CONT

The driving phase begins when the lead foot lands on the outside of the forefoot just in front of the athlete's center of gravity(i. e., the athlete's hips). The foot is driven to the ground by the hip extensor muscles. It is important for the quadriceps to fire as the foot makes contact with the ground to keep the knee from flexing excessively, which would dissipate elastic energy. The ankle should be dorsiflexed, with the foot's big toe pulled up, the combination of which will allow for the storage of elastic energy to be maximized to help with propulsion later...

French

Domaine(s)
  • Athlétisme
CONT

[Les haies] La phase d'impulsion d'une grande tonicité sur laquelle le grand axe du corps s'érige avant de basculer. La jambe dite d'attaque est lancée au dessus de l'obstacle, après que son genou ait été porté fléchi à la hauteur de la latte. Dans cette phase, l'oscillation du bras opposé à cette jambe est plus longue vers le haut et l'avant.

CONT

Le raisonnement utilisé pour certaines actions se produisant avant, pendant, et juste après la phase d'impulsion en saut à la perche sont examinés théoriquement et empiriquement.

Spanish

Save record 7

Record 8 2011-02-07

English

Subject field(s)
  • Types of Motor Vehicles and Bicycles
  • Trade Names
OBS

... Assystem City Car... is remarkably easy to park, and not only because of its compact dimensions(3. 60 m long, 1. 60 m wide and 1. 60 m tall), or its light weight(only 600 kg), but also because it has three axles, a central one, with two wheels, and one wheel in each extreme of the car(front and end). These single wheel axles are the ones responsible for moving and turning the Assystem City Car. The front wheel is powered by an electrical engine with 20 kW(about 27 cv), which can push the car to 50 km/h of top speed and has 30 km of autonomy, basically what regular people need to go to work and back home every day. For the roads, there is a little combustion engine that delivers 60 cv in the rear axle. It can lead the vehicle to a top speed of 130 km/h and, with its 30 l fuel tank, can carry the Assystem City Car to up to 600 km. Both engines can be used together, what turns this car into a hybrid. This vehicle, albeit small, can carry up to five people and their luggage. It has a low gravity center, what enhances dynamics, its oval shape prevents serious accident consequences and, when visibility is low, a screen takes the place of the regular windshield and shows the driver infrared images of the road, guiding him/her safely to destination.

OBS

Assystem City Car: A trademark of Assystem.

French

Domaine(s)
  • Sortes de véhicules automobiles et de bicyclettes
  • Appellations commerciales
OBS

Assystem City Car [...] Les innovations portent notamment sur l'interface homme-machine. Les commandes des fonctions du véhicule sont regroupées sur un écran tactile situé sur une console centrale. Des menus contextuels permettent d'accéder au contrôle des organes et au système multimédia. Les éléments de confort comprennent radio, GPS [Global Positioning Systems], téléphonie et vidéo. Assystem a développé intégralement le logiciel de restitution de l'environnement extérieur, grâce aux 4 caméras externes et exploité le concept de «réalité augmentée» pour un affichage plus visible des informations d'aide à la conduite et de sécurité. Le véhicule se veut «communiquant», puisqu'il est équipé d'un accès à Internet, téléphone, TV numérique, lecteur DVD et MP2. Le véhicule se veut en outre respectueux de l'environnement, à travers deux éléments prinicipaux : - une motorisation hybride qui permet d'économiser de l'énergie [;] - une structure «dual frame», c'est-à-dire que le véhicule est doté d'une coque modulaire indépendante du chassis porteur en aluminium qui facilite le recyclage et répond déjà aux normes européennes devant entrer en vigueur en 2008 qui prévoient que les véhicules doivent être conçus pour être très recyclables, avec 85 % d'éléments recyclables, 10 % d'éléments valorisables, et seulement 5 % d'éléments non réexploitables.

OBS

Ce véhicule a été conçu en collaboration avec le groupe Assystem (spécialiste de l'ingénierie industriel et du conseil en innovation) et le designer Franco Sbarro.

OBS

Assystem City Car: Marque de commerce de la société Assystem.

Spanish

Save record 8

Record 9 2010-10-26

English

Subject field(s)
  • Photography
CONT

Use leading lines to direct attention into your pictures. Select a camera angle where the natural or predominant lines of the scene will lead your eyes into the picture and toward your main center of interest.

French

Domaine(s)
  • Photographie
CONT

Vous pouvez utiliser une ligne directrice pour faire passer le regard d'un objet proche à un objet lointain accroissant ainsi l'illusion de profondeur.

Spanish

Save record 9

Record 10 2007-01-31

English

Subject field(s)
  • Spacecraft
  • Remote Sensing
DEF

A technology that is used for monitoring various types of disasters and Earth environmental change phenomena.

CONT

RADARSAT-1 is keeping Canada on the forefront of Earth observation satellite technology and setting new standards for the international remote sensing industry.

CONT

In recognition of the need to continuously evolve EOS technology, NASA, led by the Goddard Space Flight Center, which was named as the lead center for the EOS program, committed to reviewing EOS implementation every two years, approximately the interval between major EOS launches.

French

Domaine(s)
  • Engins spatiaux
  • Télédétection
DEF

Technologie conçue pour la surveillance des différents types de catastrophes et des phénomènes de modification de l'environnement.

CONT

RADARSAT permet au Canada de rester à la fine pointe de la technologie des satellites d'observation de la Terre et d'établir de nouvelles normes pour l'industrie de la télédétection.

Spanish

Campo(s) temático(s)
  • Naves espaciales
  • Teledetección
Save record 10

Record 11 2004-12-07

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

On a polished diamond, a pavilion of a depth which exceeds 44 percent of the average girdle diameter.

CONT

A pavilion depth of 45 percent or more can lead to significant light leakage and consequent loss of brilliance. Stones with deep pavilions may show a dark center when examined through the table.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Culasse d'un diamant taillé dont la profondeur est supérieure à 44 % du diamètre moyen du rondiste.

Spanish

Save record 11

Record 12 2002-09-30

English

Subject field(s)
  • International Bodies and Committees
  • Military (General)
OBS

The Jet Propulsion Laboratory, managed by the California Institute of Technology, is NASA's lead center for robotic exploration of the solar system.

French

Domaine(s)
  • Organismes et comités internationaux
  • Militaire (Généralités)
Key term(s)
  • Laboratoire de recherche sur la propulsion

Spanish

Save record 12

Record 13 2002-08-26

English

Subject field(s)
  • Aircraft Piloting and Navigation
  • Navigation Instruments
  • Flight Instruments and Equipment (Aeroindustry)
  • Launching and Space Maneuvering
DEF

The characteristic of a gyro resulting from lack of coincidence of the center of supporting forces and the center of mass. It gives rise to torques caused by linear accelerations that lead to acceleration-sensitive drift rates.

CONT

Gyro drift is caused by random and fixed torques, such as those resulting from bearing friction or mass unbalance. Mass unbalance results in a torque due to gravity.

French

Domaine(s)
  • Pilotage et navigation aérienne
  • Instruments de navigation
  • Instruments et équipement de bord (Constructions aéronautiques)
  • Lancement et manœuvres dans l'espace
DEF

Mauvaise répartition des masses d'une pièce ou d'un ensemble tournant, qui fait que son centre de gravité n'est pas sur l'axe de rotation.

CONT

Dans un gyroscope intégrateur flottant, un décalage de 2 nm [...] entre le centre de gravité et le centre de poussée d'Archimède produit un balourd suffisant pour créer une dérive de 10 [puissance -2] degrés par heure.

CONT

La dérive du gyroscope [...] est causée par des couples [...] fortuits et permanents, tels que ceux résultant de la friction dans les roulements et le déséquilibre de la masse. Le déséquilibre de la masse provoque un couple dû à la gravité.

Spanish

Save record 13

Record 14 2002-07-05

English

Subject field(s)
  • International Bodies and Committees
  • Meteorology
OBS

The Center for Ocean-Land-Atmosphere Studies(COLA), located in Calverton, Maryland, is a unique institution which allows earth scientists from several disciplines to work closely together on interdisciplinary research related to variability and predictability of Earth's climate on seasonal to decadal time scales. The scientific premise for research at COLA is that there is a predictable element of Earth's current climate that makes it possible to accurately forecast climate variations. While the chaotic nature of the global atmosphere is known to impose a limit on the predictability of the state of the climate at a given instant, the hypothesis behind COLA's research suggests that there is predictability in the midst of chaos, and that accurate climate forecasts with lead times longer than the inherent limit of deterministic predictability are possible.

French

Domaine(s)
  • Organismes et comités internationaux
  • Météorologie

Spanish

Save record 14

Record 15 2001-08-30

English

Subject field(s)
  • Flight Instruments and Equipment (Aeroindustry)
  • Aircraft Piloting and Navigation
  • Navigation Instruments
  • Launching and Space Maneuvering
CONT

The vacuum-drive heading indicator is the simplest of many types of gyro-controlled directional indicators designed to provide stable heading reference. ... Errors. The chief cause of precession, causing the card to creep or drift, is bearing friction. Normal movement of the gimbal rings produces friction, which is increased if the bearings are worn, dirty, or improperly lubricated. Other sources of precession error include unbalanced gyro components and the effect of the earth’s rotation. The latter effect depends upon the position of the instrument in relation to the earth, and is not appreciable unless a flight involves considerable change in latitude.

CONT

Unsymmetrical gyroscope.

OBS

mass unbalance : The characteristic of a gyro resulting from lack of coincidence of the center of supporting forces and the center of mass. It gives rise to torques caused by linear accelerations that lead to acceleration-sensitive drift rates.

French

Domaine(s)
  • Instruments et équipement de bord (Constructions aéronautiques)
  • Pilotage et navigation aérienne
  • Instruments de navigation
  • Lancement et manœuvres dans l'espace
CONT

Garde-cap. Il s'agit d'un gyroscope que l'on maintient horizontal et qui définit une direction fixe dans le plan horizontal à sa dérive près. Le gyroscope est monté à la Cardan comme dans le cas du compas mais il n'est pas balourdé. Un détecteur d'horizon monté sur la caisse de tore délivre un signal proportionnel à l'inclinaison du moment cinétique; ce signal est traité et est envoyé dans un moteur couple d'axe cd qui crée un couple vertical ramenant le moment cinétique horizontal.

CONT

Gyroscope balourdé.

OBS

balourd : Mauvaise répartition des masses d'une pièce ou d'un ensemble tournant, qui fait que son centre de gravité n'est pas sur l'axe de rotation.

Spanish

Save record 15

Record 16 1999-10-22

English

Subject field(s)
  • Masonry Practice
CONT

For projects using brick, make certain you have a brick trowel, brick chisel, mason's hammer, 4 ft. level, tape measure, pointing trowel, jointing tool, mason's line, wood line blocks and spirit level. The height and thickness of your walls are always important... Be sure to leave a space between bricks for your joint. This method is best to determine the spacing of your bricks. Then, drive a stake in the ground at both ends of your wall and stretch mason's line between them. The line will serve as a straight line guide and should mark the outside edge and top of your first course of bricks. Later, as you proceed, the guideline can be moved up to match each successive course of bricks. Line blocks can be used to hold line in place... When laying bricks, always start at the corners and keep the corners higher than the rest of your work. Work from the corners toward the center of your wall. Use the level frequently to check level and plumb. As the wall increases in height, move the line blocks up to the ends of your corner lead.

CONT

Use plastic line blocks to attach line to corners and ends, which are always built up first. Lay bricks flush with line, but do not push it out. Line blocks, unlike pins and nails, leave no holes in mortar to be filled in later.

French

Domaine(s)
  • Maçonnerie
CONT

La pose des blocs en plastique pour fixer les cordeaux aux coins et aux extrémités se fait en premier. Les briques suivront le cordeau sans y toucher. Les blocs en plastique ne laissent pas de trous dans le mortier.

Spanish

Save record 16

Record 17 1996-02-05

English

Subject field(s)
  • Riveting (Metals)
  • Aeronautical Engineering and Maintenance
CONT

Aircraft Rivets.... For the rivet layout, we will draw a line through the center of the stop-drilled holes, and then with a soft lead pencil draw a line parallel to this center line 3/8 of an inch(3 D.) to each side. The first row of rivets will be placed on these lines, and the 3/8" will ensure our having the proper edge distance.

OBS

edge distance: term standardized by ISO.

French

Domaine(s)
  • Rivetage (Métallurgie)
  • Aérotechnique et maintenance
OBS

Les rivets aveugles. [...] Technique de rivetage recommandée. [...] Distance des bords : s'agissant de joints à recouvrement ou bout à bout exposés à subir des tensions ou des cisaillements, les trous de rivet ne doivent être percés qu'à une distance des bords des tôles au moins égale à 2 diamètres de rivet, mais non supérieure à 24 diamètres de rivet.

OBS

distance à partir de l'arête : terme normalisé par l'ISO.

Spanish

Save record 17

Record 18 1987-12-04

English

Subject field(s)
  • Dentistry
  • Medical Instruments and Devices
CONT

Muslin buffs, lead center : These lead center cotton buffs will outwear several cotton wheels as they cannot come apart.

French

Domaine(s)
  • Dentisterie
  • Instruments et appareillages médicaux
CONT

L'amalgame étant poli, il faut lui rendre son éclat, son brillant. C'est le rôle du lustrage. L'instrumentation se composera de cupules de caoutchouc ou de silicone, mais surtout de brossettes de toile ou de poils.

Key term(s)
  • brossette de poils

Spanish

Save record 18

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