Results 301 to 310 of about 1,023,505 (330)
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Ultraviolet Corneal Photoablation
Journal of Refractive Surgery, 2002ABSTRACT PURPOSE: The purpose of this article is to discuss missing information on the basic physical and biological processes of ultraviolet corneal photoablation and to evaluate its potential clinical implications. METHODS: A physical description of ultraviolet laser corneal ablation that includes photothermal, photochemical, and ...
Fabrice, Manns +2 more
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Journal of the Optical Society of America, 1953
A form of ultraviolet microscope of the refracting type is described in which the source of radiation is a spark gap between fixed or rotating electrodes and the objectives are normally monochromats. The microscope is horizontal, thus avoiding the use of a mirror, and the fine motion mechanism responds to movements of 0.10 micron. Phase contrast may be
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A form of ultraviolet microscope of the refracting type is described in which the source of radiation is a spark gap between fixed or rotating electrodes and the objectives are normally monochromats. The microscope is horizontal, thus avoiding the use of a mirror, and the fine motion mechanism responds to movements of 0.10 micron. Phase contrast may be
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Canadian Journal of Research, 1948
A photometer for use in the near ultraviolet has been designed and built with particular attention to simplicity, ruggedness, and reliability.
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A photometer for use in the near ultraviolet has been designed and built with particular attention to simplicity, ruggedness, and reliability.
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Review of Scientific Instruments, 1948
A glow tube with thorium electrodes can be used to measure the intensity of ultraviolet light. The simple circuit used for this purpose does not give reliable results for photo-currents below 10−10 amp., and the exposure time to light may become several hours. The writer has devised certain improved methods which can measure small photo-currents of the
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A glow tube with thorium electrodes can be used to measure the intensity of ultraviolet light. The simple circuit used for this purpose does not give reliable results for photo-currents below 10−10 amp., and the exposure time to light may become several hours. The writer has devised certain improved methods which can measure small photo-currents of the
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Experimental Ultraviolet Carcinogenesis
1993Much of our information on UV carcinogenesis has come from investigations carried out in animal models. Skin cancers have been induced experimentally with UV radiation in a variety of laboratory animals, including mice, rats, guinea pigs, and opossums.
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Ultraviolet and Vacuum Ultraviolet Systems
Optica Acta: International Journal of Optics, 1983openaire +2 more sources