Results 281 to 290 of about 6,775,431 (345)
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The scanning laser ophthalmoscope
Physics in Medicine and Biology, 1997The imaging of the fundus of the eye poses two major technical challenges. First, it is necessary for both the illuminating and reflected beams to pass through the same aperture, the iris. In some commonly used instruments this leads to the use of levels of illumination close to the maximum tolerable by a patient.
P F, Sharp, A, Manivannan
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, 2020
This paper systematically studies the effect of laser scanning speed, one of the main process parameters in laser powder-bed fusion (LPBF), on the quasi-static tensile response of Hastelloy X at room temperature. The experimental results demonstrate that
R. Esmaeilizadeh +7 more
semanticscholar +1 more source
This paper systematically studies the effect of laser scanning speed, one of the main process parameters in laser powder-bed fusion (LPBF), on the quasi-static tensile response of Hastelloy X at room temperature. The experimental results demonstrate that
R. Esmaeilizadeh +7 more
semanticscholar +1 more source
Scanning laser polarimetry – a review
Clinical & Experimental Ophthalmology, 2009AbstractGlaucoma is a leading cause of irreversible blindness worldwide. Retinal ganglion cells and their axons represent the selective target of the disease. When visual function is still intact on standard automated perimetry and optic disc appearance is suspicious, an early diagnosis may be supported by the identification of a retinal nerve fibre ...
DA POZZO S +2 more
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2007 International Workshop on Robotic and Sensors Environments, 2007
We present an approach to laser range scanning in which quality metrics are used to automatically reduce the number of measurements acquired from a scanner viewpoint. As part of this approach we present improved versions of the orientation, and reflectivity quality metrics, as well as introduce three quality metrics: spot size, re solvability, and ...
MacKinnon, D. +3 more
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We present an approach to laser range scanning in which quality metrics are used to automatically reduce the number of measurements acquired from a scanner viewpoint. As part of this approach we present improved versions of the orientation, and reflectivity quality metrics, as well as introduce three quality metrics: spot size, re solvability, and ...
MacKinnon, D. +3 more
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Ultrasonics, 2022
Copper pipeline is a commonly used industrial transmission pipeline. Nondestructive testing of copper pipeline early damage is very important. Laser scanning has attracted extensive attention because it can realize the visualization of guided wave ...
Liu-Wei Huang +4 more
semanticscholar +1 more source
Copper pipeline is a commonly used industrial transmission pipeline. Nondestructive testing of copper pipeline early damage is very important. Laser scanning has attracted extensive attention because it can realize the visualization of guided wave ...
Liu-Wei Huang +4 more
semanticscholar +1 more source
Automation in Construction, 2019
Inaccurate information regarding the terrain in construction projects represents a major challenge to the earthwork process. Both construction quality and productivity have to be addressed by means of efficient construction information management in ...
D. Moon +4 more
semanticscholar +1 more source
Inaccurate information regarding the terrain in construction projects represents a major challenge to the earthwork process. Both construction quality and productivity have to be addressed by means of efficient construction information management in ...
D. Moon +4 more
semanticscholar +1 more source
Shield subway tunnel deformation detection based on mobile laser scanning
Automation in Construction, 2019Shield subway tunnels are critical urban infrastructure and precise, rapid deformation detection method is required for the maintenance of these tunnels.
Hao Cui +4 more
semanticscholar +1 more source
Current Protocols in Cytometry, 2004
AbstractThere are many tasks to which flow cytometers are unsuited, e.g., measurement of attached cells, repeated measurements of a single cell over time, and localization of probes in or on cells. Devices such as confocal microscopes and microscope‐based imaging systems allow high‐resolution analysis and provide flexibility, but typically have low ...
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AbstractThere are many tasks to which flow cytometers are unsuited, e.g., measurement of attached cells, repeated measurements of a single cell over time, and localization of probes in or on cells. Devices such as confocal microscopes and microscope‐based imaging systems allow high‐resolution analysis and provide flexibility, but typically have low ...
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Tunnelling and Underground Space Technology, 2019
In this study, a 40 m-long section of a shallow railway rock tunnel so-called “Monte Seco tunnel” located at Vitoria Minas Railway in Brazil is investigated.
Behzad V. Farahani +6 more
semanticscholar +1 more source
In this study, a 40 m-long section of a shallow railway rock tunnel so-called “Monte Seco tunnel” located at Vitoria Minas Railway in Brazil is investigated.
Behzad V. Farahani +6 more
semanticscholar +1 more source
Coherence control by laser scanning
Applied Optics, 1980Partially coherent illumination provided by scanning an object with a laser beam is studied theoretically and experimentally. Two scanning system schemes are considered to produce different forms of spatial coherence functions. It is demonstrated that effective spatial coherence can be controlled by changing the range and width of the scanning beam.
K, Itoh, Y, Ohtsuka
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