TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

The original algorithms rely solely on spectral information and do not use spatial information; this usage is normally justified in subpixel target detection, since the target size is smaller than the size of a pixel. However... the background(and the false alarms) may be spatially correlated and the point spread function can distribute the energy of a point target between several neighboring pixels, the implementation of spatial filtering algorithms considerably improved target detection.  2, record 1, English, - beamforming%20algorithm

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

La reproduction réalisée à partir de l'algorithme de formation de voies apparaît plutôt comme une reproduction d'environnement sonore que comme de la reproduction de champ.  2, record 1, French, - algorithme%20de%20formation%20de%20faisceaux

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

The approach relies on self-interference generated within the microscope's point spread function(PSF) to simultaneously encode equiphase and intensity fluorescence signals, which together provide the 3D position of an emitter.  1, record 2, English, - self%2Dinterference

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

SELFI est basée sur un phénomène d'auto-interférences lumineuses (self-interferences) et peut s'adapter à n'importe quel microscope optique. Sa force : elle permet de révéler, à des profondeurs jamais atteintes avec ces résolutions, des structures moléculaires en 3D au sein de tissus biologiques reconstitués à partir de cellules souches humaines.  1, record 2, French, - auto%2Dinterf%C3%A9rence%20lumineuse

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

STED [stimulated emission depletion] microscopy was the first high-resolution microscopy concept applied more widely for the study of biological questions. As performed in classical confocal laser scanning microscopy, a conventional laser beam is used to stimulate the fluorescent molecules in what is a normal excited spot(of several hundred nanometers in diameter). A second toroidal(doughnut shaped) beam is used to quench the fluorophores by stimulated emission. By overlapping the two beams, fluorescence is allowed only from the center of the spot, which thus generates a much smaller exciting focal spot... Thus, in practical terms, a smaller effective PSF [point spread function] is generated that causes less blurring and, therefore, results in higher resolution. Theoretically, the gain in resolution is not physically limited : it only depends on the power of the quenching laser beam(the higher the power, the smaller the imaging spot becomes).  1, record 3, English, - quenching%20laser%20beam

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

Microscopie de fluorescence à déplétion par émission stimulée (STED) - [On utilise] un microscope de fluorescence à balayage où on superpose au faisceau d’excitation classiquement présent, un faisceau de déplétion mis en forme de doughnut afin de dépasser la limite de résolution imposée par la diffraction. Cette limite est dépassée en utilisant l'émission stimulée pour empêcher l’émission de fluorescence dans la zone associée au doughnut. Ainsi seule la zone intérieure au doughnut peut encore émettre de la fluorescence, et la largeur de cette zone centrale est ajustée grâce à la saturation des effets de déplétion de la fluorescence.  2, record 3, French, - laser%20de%20d%C3%A9pl%C3%A9tion

Record number: 3, Textual support number: 1 OBS

Le «quenching» correspond à une relaxation non-radiative des électrons excités vers l’état fondamental. Le RET (transfert d’énergie par résonance) est une forme de «quenching».  1, record 3, French, - laser%20de%20d%C3%A9pl%C3%A9tion

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

The spread function that is produced when the input to the system is a point. [ISO/IEC JTC N1746, 1995]  1, record 4, English, - point%20spread%20function

Record 4,  Textual support,  French

Record 4,  Textual support,  Spanish