Results 241 to 250 of about 19,832 (291)
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Characterization of optical disks
Applied Optics, 1982One key element of an optical storage system is the recording medium. An important part of the successful development of media technology are the various techniques for characterization of the media. In this paper, several techniques are described with spatial resolutions ranging from millimeters to microns.
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Congenital optic disk anomalies
Survey of Ophthalmology, 1994Over the past decade, a wealth of information has accumulated pertaining to the diagnosis and management of patients with congenital optic disk anomalies. As new examples of each entity have been detailed, the diagnostic criteria for each anomaly have become more clearly defined.
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Optical disks in optical computing
COMPCON Spring '91 Digest of Papers, 2002Two optical-disk based architectures are described. The first is an optical implementation of the radial basis function approach for handwritten character recognition. The second system is an optoelectronic neural network implementation with electronic neurons, electronic synapses, and optical-disk-based weight storage.
M.A. Neifeld +4 more
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1994
This article discusses one of the new information technologies, CD-ROM, and its role in information dissemination. A review of the history of information dissemination after the Second World War, from the beginning of indexing to the emergence of databases such as Dialog, Orbit, and Questel, is the introductory discussion of the article.
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This article discusses one of the new information technologies, CD-ROM, and its role in information dissemination. A review of the history of information dissemination after the Second World War, from the beginning of indexing to the emergence of databases such as Dialog, Orbit, and Questel, is the introductory discussion of the article.
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The Leading Edge, 1989
Optical disk storage is a rapidly evolving technology that is creating a significant impact on the geophysical industry. Optical disks can be used to store images (drawings, surveys, maps, etc.) or raw data (seismic traces, telemetry, etc.) for retrieval and analysis.
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Optical disk storage is a rapidly evolving technology that is creating a significant impact on the geophysical industry. Optical disks can be used to store images (drawings, surveys, maps, etc.) or raw data (seismic traces, telemetry, etc.) for retrieval and analysis.
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Optic disk contractility in morning glory disk anomaly
Journal of American Association for Pediatric Ophthalmology and Strabismus, 2018Morning glory disk anomaly is a nonhereditary, congenital optic disk dysplasia characterized by conical excavation of the posterior fundus with a central glial tuft and radial retinal vessels. We report the case of a 4-year-old girl who presented with esotropia, enophthalmos, no light perception, and afferent pupillary defect in her left eye; fundus ...
Sadasivan K, Samyukta +5 more
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The Physics Teacher, 2002
Periodic structures ranging from crystal lattices through steel rulers to radio-antenna arrays may act as diffraction gratings. Because compact disks are so familiar to our students, their use as reflection gratings has become popular.
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Periodic structures ranging from crystal lattices through steel rulers to radio-antenna arrays may act as diffraction gratings. Because compact disks are so familiar to our students, their use as reflection gratings has become popular.
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Optic Disk Size in Ischemic Optic Neuropathy
American Journal of Ophthalmology, 1988We measured the horizontal diameter, vertical diameter, and area of the optic disk in fellow eyes of patients with unilateral nonarteritic ischemic optic neuropathy and in control eyes without ocular disease. The fellow eyes of patients with anterior ischemic optic neuropathy had a smaller horizontal than vertical disk diameter (P less than .05), a ...
A M, Mansour, D, Shoch, S, Logani
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The Electronic Library, 1986
Descriptions of optical disk equipment usually begin with terms like CD‐ROM or WORM, leaving the reader to grope for some understanding of what the equipment does. In that frame of mind, it can be difficult to think of creative ways to use the huge capacities offered by optical disks.
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Descriptions of optical disk equipment usually begin with terms like CD‐ROM or WORM, leaving the reader to grope for some understanding of what the equipment does. In that frame of mind, it can be difficult to think of creative ways to use the huge capacities offered by optical disks.
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Vestnik oftalmologii, 2000
Optic disk drusen (ODD) is a much more prevalent condition than it is usually considered. It is important to recognize ODD in order to escape serious neurosurgical interventions and rule out the development of optic neuropathy leading to grave visual dysfunction. Three cases with ODD are described.
O I, Bessmel'tseva +2 more
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Optic disk drusen (ODD) is a much more prevalent condition than it is usually considered. It is important to recognize ODD in order to escape serious neurosurgical interventions and rule out the development of optic neuropathy leading to grave visual dysfunction. Three cases with ODD are described.
O I, Bessmel'tseva +2 more
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