Results 11 to 20 of about 619,306 (307)
Insight into small eyes: a practical description from phenotypes presentations to the management [PDF]
International Journal of OphthalmologyThis narrative review aimed to have an algorithmic approach to microphthalmos by a systematic search. The definition can be related to a number of special phenotypes.
Sana Niazi +4 more
doaj +1 more source
Is There a Quad Problem among Optical Gravitational Lenses? [PDF]
, 2007 Most of optical gravitational lenses recently discovered in the Sloan Digital Sky Survey Quasar Lens Search (SQLS) have two-images rather than four-images, in marked contrast to radio lenses for which the fraction of four-image lenses (quad fraction) is ...
Oguri, Masamune
core +2 more sources
Effect of plant-based feed ingredients on osmoregulation in the Atlantic salmon lens [PDF]
, 2010 Lenses of adult Atlantic salmon fed with a plant oil and plant protein-based diet (plant diet) were compared to lenses of fish fed a diet based on traditional marine ingredients (marine diet) with respect to biochemical composition and functionality ex ...
Baslow +52 more
core +1 more source
The Journal of Engineering, 2019 There exists few reports in the literature aimed at estimating depth from the spectrally-varying-amount-of-defocus contained in a single image generally captured by a commercial colour camera.
Wei Jiang, Dingrong Yi, Linghua Kong
doaj +1 more source
Gradient Index Metasurface Lens for Microwave Imaging
Sensors, 2022 This paper presents the design, simulation and experimental validation of a gradient-index (GRIN) metasurface lens operating at 8 GHz for microwave imaging applications. The unit cell of the metasurface consists of an electric-LC (ELC) resonator.
Srijan Datta +2 more
doaj +1 more source
Imaging with Pairs of Skew Lenses [PDF]
, 2017 Many of the properties of thick lenses can be understood by considering these as a combination of parallel ideal thin lenses that share a common optical axis. A similar analysis can also be applied to many other optical systems.
Belin, Jakub +3 more
core +1 more source
Gradient index phononic crystals and metamaterials
Nanophotonics, 2019 Phononic crystals and acoustic metamaterials are periodic structures whose effective properties can be tailored at will to achieve extreme control on wave propagation.
Jin Yabin +2 more
doaj +1 more source
The Long-Term Effect of Blue-Light Blocking Spectacle Lenses on Adults’ Contrast Perception
Frontiers in Neuroscience, 2022 PurposeTo evaluate the long-term effect of two different degrees of blue-light blocking (BB) spectacle lenses on adults’ contrast perception under various lighting conditions.MethodsIn total, 144 healthy adults aged 24.70 (±4.32 years) were recruited to ...
Yan Lian +5 more
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The Environments of SLACS Gravitational Lenses [PDF]
, 2007 We report on an investigation of the environments of the SLACS sample of gravitational lenses. The local and global environments of the lenses are characterized using SDSS photometry and, when available, spectroscopy.
Auger, M. W.
core +1 more source
Liquid Crystal Devices for Beam Steering Applications
Micromachines, 2021 Liquid crystals are valuable materials for applications in beam steering devices. In this paper, an overview of the use of liquid crystals in the field of adaptive optics specifically for beam steering and lensing devices is presented.
Rowan Morris +2 more
doaj +1 more source