Results 251 to 260 of about 581,508 (291)
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Optical Contour Mapping of Surfaces
Applied Optics, 1973A precise nondestructive optical contour mapping method with adjustable sensitivity for noncontact testing of surface deformations up to 30 microm/cm is described. The method employs an optical grating that is placed in front of the test surface. Illumination of the grating by a monochromatic plane wave generates an interference pattern between the ...
W, Jaerisch, G, Makosch
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Science, 2006
An invisibility device should guide light around an object as if nothing were there, regardless of where the light comes from. Ideal invisibility devices are impossible, owing to the wave nature of light. This study develops a general recipe for the design of media that create perfect invisibility within the accuracy of geometrical optics.
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An invisibility device should guide light around an object as if nothing were there, regardless of where the light comes from. Ideal invisibility devices are impossible, owing to the wave nature of light. This study develops a general recipe for the design of media that create perfect invisibility within the accuracy of geometrical optics.
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Optical mapping of the atrioventricular junction
Journal of Electrocardiology, 2005In the normal heart, the atrioventricular node (AVN) is part of the sole pathway between the atria and ventricles, and is responsible for the appropriate atrial-ventricular delay. Under normal physiological conditions, the AVN controls appropriate frequency-dependent delay of contractions.
William J, Hucker +2 more
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Potential mapping of optical tweezers
Optics Letters, 2011Optical tweezers are very often used for measurement of piconewton range forces. Depending on the displacement of the trapped bead, the trap may become stiffer which causes considerable underestimation of the measured force. We have shown, both by theory and experiment, that such a stiffening occurs for beads larger than 0.5 μm in radius. For the first
Tahmineh, Godazgar +2 more
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Intensity mapping optical aberrations
Applied Optics, 1978Intensity mapping aberrations for high average power laser beams are examined from the point of view of diffraction theory. For the Fresnel ripple aberrations, it was determined that indeed they behave like a circular diffraction grating where energy is diffracted into the far wings of the far-field intensity distribution without significantly ...
P V, Avizonis, B D, O'Neil, V A, Hedin
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WHOLE GENOME OPTICAL MAPPING [PDF]
Proceedings of the 4th Asia-Pacific Bioinformatics Conference, 2005 An innovative new technology, optical mapping, is used to infer the genome map of the location of short sequence patterns called restriction sites. The technology, developed by David Schwartz, allows the visualization of the maps of randomly located single molecules around a million base pairs in length.
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A Quantile Method for Sizing Optical Maps
Journal of Computational Biology, 2007Optical mapping is an integrated system for the analysis of single DNA molecules. It constructs restriction maps (noted as "optical map" ) from individual DNA molecules presented on surfaces after they are imaged by fluorescence microscopy. Because restriction digestion and fluorochrome staining are performed after molecules are mounted, resulting ...
Haifeng Li +4 more
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Optical Engineering, 1975
Several potential applications of coherent optics in the field of topographic mapping have been identified.1 This paper outlines the motivation for applying coherent optics to topographic mapping, presents some additional applications not included in Ref. 1, and further discusses some applications developed in that reference.
N. Balasubramanian, R. D. Leighty
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Several potential applications of coherent optics in the field of topographic mapping have been identified.1 This paper outlines the motivation for applying coherent optics to topographic mapping, presents some additional applications not included in Ref. 1, and further discusses some applications developed in that reference.
N. Balasubramanian, R. D. Leighty
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Genomics via Optical Mapping II: Ordered Restriction Maps
Journal of Computational Biology, 1997In this paper, we describe our algorithmic approach to constructing ordered restriction maps based on the data created from the images of population of individual DNA molecules (clones) digested by restriction enzymes. The goal is to devise map-making algorithms capable of producing high-resolution, high-accuracy maps rapidly and in a scalable manner ...
Thomas S. Anantharaman +2 more
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2021
Optical mapping is an imaging technique that is used to record physiologic phenomena from live tissue. To date, optical imaging has been applied in the heart to record NADH+, transmembrane potential, and intracellular calcium transients. While NADH+ imaging relies on the intrinsic fluorescent signals from the tissue, fluorescent dyes have been ...
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Optical mapping is an imaging technique that is used to record physiologic phenomena from live tissue. To date, optical imaging has been applied in the heart to record NADH+, transmembrane potential, and intracellular calcium transients. While NADH+ imaging relies on the intrinsic fluorescent signals from the tissue, fluorescent dyes have been ...
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