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POSITIONING HOLE [4 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2014-01-29

English

Subject field(s)
  • Atomic Physics
DEF

A molecular device capable of converting energy into movement and able to generate forces on the order of piconewtons.

CONT

The nanomotor has a positioning stroke up to some centimeters while operating with atomic resolution and thus builds a bridge over eight orders of magnitude. The nanomotor is a piezo driven linear motor consisting of a cylindrical housing and a slider with a free axial hole inside. It utilizes a piezo tube for fine positioning and a pulse wave produced by the same piezo tube for coarse movements. Every point of its stroke can be reached with a speed of up to 5 mm/s. In its free axial hole the nanomotor can transport a tip, a hose, an electrode, a hypodermic needle, a glass fiber or even a microgripper. The nanomotor is available in three different versions. The "small" nanomotor is half the size of a match stick. It can lift six times of its own mass. The dynamic force of this nanomotor is so high, that even imprints in diamond surfaces can be produced. Special versions of the nanomotor can operate in ultra high vacuum, in liquid helium, even under water or as non-magnetic drives.

PHR

Primer, virus nanomotor.

PHR

Nanotube nanomotor.

Key term(s)
  • nano-motor

French

Domaine(s)
  • Physique atomique
DEF

Assemblage de molécules comportant des éléments de dimensions nanométriques qui, lorsqu'ils sont alimentés par une source d'énergie, répètent incessamment le même mouvement.

PHR

Nanomoteur biologique, protéique.

Key term(s)
  • nano-moteur

Spanish

Campo(s) temático(s)
  • Física atómica
CONT

El nanomotor es capaz de desplazar cargas y de girar como un motor convencional, pero un millón de veces más pequeño que el agujero de una aguja. La investigación abre las puertas a la creación de nuevos dispositivos nanométricos capaces de llevar a cabo tareas mecánicas con futuras aplicaciones en ámbitos como la biomedicina o los nuevos materiales.

Save record 1

Record 2 2013-02-04

English

Subject field(s)
  • Eye Surgery
  • Prostheses
  • The Eye
DEF

The hole, whether penetrating or not, intended to be used for surgical manipulation.

CONT

Decentered [intraocular lens] optics can elicit complaints of glare, monocular diplopia, or ghost images, if the edge of the optic, the junction between the haptic and optic, or the positioning holes are located in the pupillary axis.

OBS

positioning hole : term and definition standardized by the International Organization for Standardization(ISO).

French

Domaine(s)
  • Chirurgie de l'œil
  • Prothèses
  • Oeil
DEF

Trou, transfixiant ou non, permettant les manipulations opératoires.

OBS

trou de positionnement : terme et définition normalisés par l'Organisation internationale de normalisation (ISO).

Spanish

Save record 2

Record 3 2000-04-26

English

Subject field(s)
  • Oil Drilling
DEF

The process of positioning a deflection tool such that it faces in the direction necessary to achieve the desired direction and drift angle of a directional hole.

French

Domaine(s)
  • Forage des puits de pétrole

Spanish

Save record 3

Record 4 1996-06-17

English

Subject field(s)
  • Visual Disorders
  • Eye Surgery
  • Prostheses
CONT

Posterior chamber IOL [intraocular lens] malpositions are labelled descriptively by their appearance ... [A] haptic loop asymmetry, where the optic is deviated laterally, is descriptively classified as an ’east-west syndrome’.

CONT

East-west syndrome. Caused when an intraocular lens is placed so that the edge of the optic, a positioning hole and the components of the loop-optic junction are well within the pupillary aperture.

French

Domaine(s)
  • Troubles de la vision
  • Chirurgie de l'œil
  • Prothèses
OBS

voir les fiches «sunset syndrome» et «sunrise syndrome»

Spanish

Save record 4

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